What are the cheapest airlines flying from London to San Diego round-trip?

According to our current data, SWISS (£486), United Airlines (£487), and Air Canada (£488) offers the cheapest pricing from London to San Diego. SWISS is 18% cheaper than the average price of flights available within the next 90 days to this destination.

What are the cheapest airlines to fly from London to San Diego one-way?

£519 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on WestJet and British Airways, with prices starting from £520 and £524, respectively.

What are the most popular routes from London to San Diego?

When deciding which route to take from London to San Diego consider London Heathrow - San Diego, London Gatwick - San Diego or London City - San Diego as they are the most popular.

What are the cheapest flights from London to San Diego?

Looking at all options, your cheapest flight can be booked for £493. While the most popular route (London Heathrow - San Diego) can be booked for £435 on average our data indicates £1,849 when flying from London to San Diego.

What are the most reliable airlines from London to San Diego?

Consider Aer Lingus (80%), Finnair (80%) or Iberia (79%) when booking your flight. These represent the most reliable airlines when flying from London to San Diego.

What are the most popular airlines that fly from London to San Diego?

Consider American Airlines, Air Canada or Air France when booking your flight. These represent the most popular airlines when flying from London to San Diego.

What is the cheapest day to fly round-trip from London to San Diego?

Departing on a Thursday is a good option for securing a great price. You can expect to save up to 5% when planning your travel around this day of the week.

How far in advance should I book a flight from London to San Diego?

Find a great deal and save up to 17% by booking at least 26 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from London to San Diego within the next two weeks, with the cheapest ticket starting at £540.

What is the cheapest month to fly from London to San Diego?

The best pricing can be found in the month of March. Prices to San Diego from London average £600. You can even find prices in March for less than £600, as users have found deals to San Diego from as low as £410. The month of July appears to be one of the more expensive times to travel to San Diego from London. Flying in the targeted month can save you up to 33%.

What airport do you fly into for flights to San Diego from London?

If you book a flight to San Diego from London, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 8 flights from London to San Diego per day from 11 different airlines.

Can I find deals for flights from London to San Diego that include hotel bookings?

Yes. In addition to deals on London to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from London to San Diego?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Diego.

Can I find deals for business class flights from London to San Diego?

Yes. Cheapflights offers flight deals from London to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£486+ Flights from London to San Diego

Cheapflights Tip: The best prices from London to San Diego are usually found in March or February, booked 79 days in advance, depart on a Friday or Wednesday and return on a Sunday

Cheap flight deals from London to San Diego

Round-trip from	£486
Popular in	July
Cheapest in	March
Average price	£631
Good round-trip deal	£575 or less
Good one-way deal	£753 or less

SWISS
29/4-6/5
4 total stops
41h 09m total
London to San Diego

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£100 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a round-trip flight from London (LON) to San Diego.

Search Deals

Price to beat on a one-way flight from London (LON) to San Diego.

Search Deals

Find flight deals from London to San Diego

Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2025.

Tue 29/409:25LCY - SAN

2 stops21h 04mSWISS

Tue 6/513:25SAN - LCY

2 stops20h 05mSWISS

Deal found 8/4£486

Thu 24/417:10LHR - SAN

2 stops33h 46mMultiple Airlines

Thu 8/508:10SAN - LHR

1 stop14h 45mMultiple Airlines

Deal found 10/4£486

Wed 23/409:30LHR - SAN

2 stops18h 25mUnited Airlines

Wed 30/410:26SAN - LHR

1 stop17h 09mUnited Airlines

Deal found 9/4£487

Wed 24/914:05LHR - SAN

2 stops29h 47mAir Canada

Thu 2/1016:55SAN - LHR

2 stops33h 05mAir Canada

Deal found 10/4£488

Fri 2/510:55LGW - SAN

2 stops21h 47mMultiple Airlines

Thu 8/506:15SAN - LGW

3 stops29h 20mMultiple Airlines

Deal found 9/4£491

Wed 30/411:30LHR - SAN

Nonstop11h 20mBritish Airways

Sun 4/515:04SAN - LHR

1 stop13h 11mBritish Airways

Deal found 10/4£491

Thu 24/406:30LHR - SAN

2 stops18h 22mDelta

Thu 8/506:20SAN - LHR

1 stop22h 50mDelta

Deal found 10/4£499

Thu 24/414:55LHR - SAN

Nonstop11h 05mAmerican Airlines

Thu 8/514:49SAN - LHR

1 stop13h 26mAmerican Airlines

Deal found 10/4£501

Wed 30/409:25LCY - SAN

3 stops23h 17mMultiple Airlines

Wed 7/508:08SAN - LCY

3 stops25h 07mMultiple Airlines

Deal found 9/4£503

Wed 7/514:55LHR - SAN

Nonstop11h 05mIberia

Wed 14/519:50SAN - LHR

Nonstop10h 30mIberia

Deal found 10/4£507

Thu 28/812:00LGW - SAN

1 stop17h 13mDelta

Fri 5/907:00SAN - LGW

1 stop19h 00mDelta

Deal found 9/4£514

Wed 24/909:15LHR - SAN

2 stops16h 21mFinnair

Fri 3/1010:26SAN - LHR

2 stops15h 14mFinnair

Deal found 10/4£516

Best flights from London to San Diego
Discover carefully curated flight deals from London to San Diego that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 10 April 2025.

Tue 29/409:25LCY - SAN

2 stops21h 04mSWISS

Tue 6/513:25SAN - LCY

2 stops20h 05mSWISS

Deal found 8/4£486

Thu 24/417:10LHR - SAN

2 stops33h 46mMultiple Airlines

Thu 8/508:10SAN - LHR

1 stop14h 45mMultiple Airlines

Deal found 10/4£486

Wed 23/409:30LHR - SAN

2 stops18h 25mUnited Airlines

Wed 30/410:26SAN - LHR

1 stop17h 09mUnited Airlines

Deal found 9/4£487

Wed 24/914:05LHR - SAN

2 stops29h 47mAir Canada

Thu 2/1016:55SAN - LHR

2 stops33h 05mAir Canada

Deal found 10/4£488

Wed 30/411:30LHR - SAN

Nonstop11h 20mBritish Airways

Sun 4/515:04SAN - LHR

1 stop13h 11mBritish Airways

Deal found 10/4£491

Thu 24/406:30LHR - SAN

2 stops18h 22mDelta

Thu 8/506:20SAN - LHR

1 stop22h 50mDelta

Deal found 10/4£499

Thu 24/414:55LHR - SAN

Nonstop11h 05mAmerican Airlines

Thu 8/514:49SAN - LHR

1 stop13h 26mAmerican Airlines

Deal found 10/4£501

Wed 7/514:55LHR - SAN

Nonstop11h 05mIberia

Wed 14/519:50SAN - LHR

Nonstop10h 30mIberia

Deal found 10/4£507

Wed 24/909:15LHR - SAN

2 stops16h 21mFinnair

Fri 3/1010:26SAN - LHR

2 stops15h 14mFinnair

Deal found 10/4£516

Sun 20/407:25LHR - SAN

1 stop16h 00mLufthansa

Sun 27/414:27SAN - LHR

1 stop12h 43mLufthansa

Deal found 10/4£524

Tue 10/612:00LGW - SAN

1 stop19h 41mVirgin Atlantic

Sun 15/607:05SAN - LGW

1 stop18h 55mVirgin Atlantic

Deal found 9/4£530

Wed 24/912:10LGW - SAN

1 stop29h 07mIcelandair

Wed 1/1021:25SAN - LGW

1 stop28h 10mIcelandair

Deal found 9/4£550

Direct flights from London to San Diego
Explore direct flight options from London to San Diego based on user searches, and compare prices and availability for your desired travel dates. Data last updated 10 April 2025.

Wed 24/914:55LHR - SAN

Nonstop11h 05mBritish Airways

Thu 2/1016:40SAN - LHR

Nonstop10h 45mBritish Airways

Deal found 10/4£494

Wed 7/514:55LHR - SAN

Nonstop11h 05mMultiple Airlines

Wed 14/519:50SAN - LHR

Nonstop10h 30mMultiple Airlines

Deal found 9/4£505

Mon 21/411:30LHR - SAN

Nonstop11h 20mAmerican Airlines

Mon 5/516:40SAN - LHR

Nonstop10h 45mAmerican Airlines

Deal found 9/4£508

Wed 24/914:55LHR - SAN

Nonstop11h 05mIberia

Wed 1/1019:50SAN - LHR

Nonstop10h 30mIberia

Deal found 10/4£519

Wed 30/414:55LHR - SAN

Nonstop11h 05mAer Lingus

Sun 4/519:50SAN - LHR

Nonstop10h 30mAer Lingus

Deal found 10/4£659

Sun 13/714:55LHR - SAN

Nonstop11h 05mFinnair

Sat 9/819:50SAN - LHR

Nonstop10h 30mFinnair

Deal found 10/4£1,380

Last-minute flights from London to San Diego
Discover last-minute flight deals from London to San Diego. Data last updated 10 April 2025 and is based on user searches.

Wed 16/408:20LHR - SAN

1 stop15h 38mAmerican Airlines

Wed 23/416:48SAN - LHR

1 stop13h 37mAmerican Airlines

Deal found 9/4£563

Wed 16/411:45LHR - SAN

2 stops16h 41mDelta

Wed 23/411:05SAN - LHR

1 stop16h 15mDelta

Deal found 9/4£620

Wed 16/409:25LCY - SAN

2 stops21h 05mSWISS

Wed 23/415:57SAN - LCY

2 stops17h 18mSWISS

Deal found 9/4£826

Wed 16/414:55LHR - SAN

Nonstop11h 05mIberia

Wed 23/419:50SAN - LHR

Nonstop10h 30mIberia

Deal found 9/4£875

Thu 17/409:20LCY - SAN

2 stops21h 29mVirgin Atlantic

Mon 5/513:30SAN - LCY

2 stops19h 10mVirgin Atlantic

Deal found 9/4£641

Thu 17/415:40LGW - SAN

2 stops39h 04mIcelandair

Mon 5/513:28SAN - LGW

2 stops41h 12mIcelandair

Deal found 9/4£811

Thu 17/408:45LCY - SAN

3 stops20h 20mMultiple Airlines

Mon 5/508:10SAN - LCY

2 stops20h 20mMultiple Airlines

Deal found 9/4£889

Fri 18/408:20LHR - SAN

1 stop15h 38mBritish Airways

Mon 5/516:40SAN - LHR

Nonstop10h 45mBritish Airways

Deal found 10/4£536

Fri 18/419:10LCY - SAN

2 stops33h 30mLufthansa

Mon 5/510:30SAN - LCY

2 stops24h 05mLufthansa

Deal found 10/4£602

Sat 19/410:00LGW - SAN

2 stops33h 29mMultiple Airlines

Wed 7/522:40SAN - LGW

1 stop23h 40mMultiple Airlines

Deal found 9/4£610

Sun 20/416:15LHR - SAN

1 stop16h 03mUnited Airlines

Sun 27/414:27SAN - LHR

1 stop12h 43mUnited Airlines

Deal found 10/4£498

Sun 20/407:25LHR - SAN

1 stop16h 00mLufthansa

Sun 27/414:27SAN - LHR

1 stop12h 43mLufthansa

Deal found 10/4£524

One-way flights from London to San Diego
Search for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 10 April 2025.

Wed 16/421:20LGW - SAN

3 stops35h 22mMultiple Airlines

Deal found 10/4£515

Wed 14/507:25LHR - SAN

1 stop16h 00mLufthansa

Deal found 10/4£519

Sun 15/610:45LGW - SAN

2 stops34h 35mWestJet

Deal found 9/4£520

Thu 17/408:20LHR - SAN

1 stop15h 38mBritish Airways

Deal found 9/4£524

Thu 17/414:10STN - SAN

3 stops37h 25mMultiple Airlines

Deal found 10/4£527

Fri 18/414:20LHR - SAN

2 stops42h 22mMultiple Airlines

Deal found 9/4£529

Tue 29/406:45LCY - SAN

3 stops25h 10mMultiple Airlines

Deal found 10/4£532

Wed 7/514:55LHR - SAN

Nonstop11h 05mIberia

Deal found 10/4£533

Tue 2/909:25LCY - SAN

2 stops19h 23mSWISS

Deal found 10/4£537

Wed 30/714:10LHR - SAN

3 stops29h 59mWestJet

Deal found 10/4£538

Sat 12/712:00LHR - SAN

2 stops19h 25mAer Lingus

Deal found 10/4£551

Sat 28/612:40LGW - SAN

1 stop32h 15mAir Transat

Deal found 10/4£574

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Diego

LCY - SAN

LCYSAN

London City

Tue 29/4

09:25-22:29

2 stops21h 04m

San Diego

Tue 6/5

13:25-17:30

2 stops20h 05m

£486

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 24/4

17:10-18:56

2 stops33h 46m

San Diego

Thu 8/5

08:10-06:55

1 stop14h 45m

£486

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 23/4

09:30-19:55

2 stops18h 25m

San Diego

Wed 30/4

10:26-11:35

1 stop17h 09m

£487

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 24/9

14:05-11:52

2 stops29h 47m

San Diego

Thu 2/10

16:55-10:00

2 stops33h 05m

£488

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 30/4

11:30-14:50

Nonstop11h 20m

San Diego

Sun 4/5

15:04-12:15

1 stop13h 11m

£491

LondonSan Diego

LGW - SAN

LGWSAN

London Gatwick

Fri 2/5

10:55-00:42

2 stops21h 47m

San Diego

Thu 8/5

06:15-19:35

3 stops29h 20m

£491

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 24/4

06:30-16:52

2 stops18h 22m

San Diego

Thu 8/5

06:20-13:10

1 stop22h 50m

£499

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Thu 24/4

14:55-18:00

Nonstop11h 05m

San Diego

Thu 8/5

14:49-12:15

1 stop13h 26m

£501

LondonSan Diego

LCY - SAN

LCYSAN

London City

Wed 30/4

09:25-00:42

3 stops23h 17m

San Diego

Wed 7/5

08:08-17:15

3 stops25h 07m

£503

LondonSan Diego

LHR - SAN

LHRSAN

London Heathrow

Wed 7/5

14:55-18:00

Nonstop11h 05m

San Diego

Wed 14/5

19:50-14:20

Nonstop10h 30m

£507

Flights are sorted by cheapest return flights first.

Deals found on 10/4

Showing 1-10 of 60 results

...

Best time to book a flight from London to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from London with our price prediction graph.

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to San Diego

How far ahead should I book a flight from London to San Diego?

The best time to book flights from London to San Diego is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London to San Diego?

Currently, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LON to SAN?

A simple way to save on the total cost of your ticket is to fly from London to San Diego at midday. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from London to San Diego?

Travellers seeking maximum savings on their London to San Diego flight should consider departing on Wednesday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from London to San Diego

The most flights from LON to SAN are scheduled on a Wednesday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in San Diego by month

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 inches per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

Temperature in San Diego by month

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with Delta, KLM and Air Transat from London to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,911 reviews

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,321 reviews

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air Transat

7.8

Good

385 reviews

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Austrian Airlines

7.6

Good

774 reviews

Delta

8.0

Very Good

7,911 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What airport do you fly into for flights to San Diego from London?
If you book a flight to San Diego from London, you will be flying to San Diego, which is the city’s only airport. San Diego (SAN) is located 2.6 mi from the center of San Diego. There are 8 flights from London to San Diego per day from 11 different airlines.
What are the cheapest airlines flying from London to San Diego round-trip?
According to our current data, SWISS (£486), United Airlines (£487), and Air Canada (£488) offers the cheapest pricing from London to San Diego. SWISS is 18% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from London to San Diego one-way?
£519 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on WestJet and British Airways, with prices starting from £520 and £524, respectively.
What are the most popular routes from London to San Diego?
When deciding which route to take from London to San Diego consider London Heathrow - San Diego, London Gatwick - San Diego or London City - San Diego as they are the most popular.
What are the most reliable airlines from London to San Diego?
Consider Aer Lingus (80%), Finnair (80%) or Iberia (79%) when booking your flight. These represent the most reliable airlines when flying from London to San Diego.
What are the cheapest flights from London to San Diego?
Looking at all options, your cheapest flight can be booked for £493. While the most popular route (London Heathrow - San Diego) can be booked for £435 on average our data indicates £1,849 when flying from London to San Diego.
Can I find deals for flights from London to San Diego that include hotel bookings?
Yes. In addition to deals on London to San Diego flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from London to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Diego.
Can I find deals for business class flights from London to San Diego?
Yes. Cheapflights offers flight deals from London to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from London to San Diego?
Currently, January is the cheapest month in which you can book a flight from London to San Diego (average of £585). Flying from London to San Diego in July is currently the most expensive (average of £920). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

El Cajon

Browse thousands of different options on Cheapflights for your next trip

Top 10 airlines flying from London to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Air France	Cheapest£386	Average£442	FlexibilityNo cancel fee	On-time77%	Search Air France flights
Air Canada	Cheapest£402	Average£510	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
British Airways	Cheapest£412	Average£601	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Virgin Atlantic	Cheapest£416	Average£663	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
United Airlines	Cheapest£425	Average£577	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Lufthansa	Cheapest£428	Average£530	FlexibilityNo cancel fee	On-time76%	Search Lufthansa flights
Finnair	Cheapest£436	Average£596	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£441	Average£590	FlexibilityNo cancel fee	On-time75%	Search KLM flights
American Airlines	Cheapest£457	Average£538	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights
Iberia	Cheapest£488	Average£640	FlexibilityNo cancel fee	On-time77%	Search Iberia flights

Fly with Cheapflights

How does Cheapflights help users find flights from London to San Diego?

Cheapflights makes it easy to find London to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to San Diego?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to San Diego from London.

Can Cheapflights find flights from London to San Diego with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to San Diego flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?

Yes! Start tracking prices for London to San Diego flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from London to San Diego from £486

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from London to San Diego are usually found in March or February, booked 79 days in advance, depart on a Friday or Wednesday and return on a Sunday

Cheap flight deals from London to San Diego

Round-trip from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from London to San Diego

Cheapest flights from London to San DiegoExplore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2025.

Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to San Diego that are best for you.

Best time to book a flight from London to San Diego

Have a flexible travel schedule? Discover the best time to fly to San Diego from London with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from London to San Diego

How far ahead should I book a flight from London to San Diego?

Use this chart to determine the optimal time to book a return flight from London to San Diego. Price data was last updated on 4 April 2025.

What is the cheapest month to book a flight from London to San Diego?

What is the cheapest time of day to fly from LON to SAN?

Find hourly flight availability from London to San Diego. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 10 April 2025.

What is the cheapest day to fly from London to San Diego?

Use this chart to determine the cheapest time to fly return from London to San Diego. Price data was last updated on 30 June 2024.

Weekly flight availability from London to San Diego

Explore weekly flight availability from London to San Diego. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 10 April 2025.

Rainfall in San Diego by month

Plan your trip to San Diego by taking into account the average rainfall totals by month.

Temperature in San Diego by month

Plan your trip to San Diego by taking into account the average temperature totals by month.

Reviews of airlines servicing San Diego

Peruse reviews from past customers who have flown with Delta, KLM and Air Transat from London to San Diego to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from London to San Diego. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to San Diego from London?

What are the cheapest airlines flying from London to San Diego round-trip?

What are the cheapest airlines to fly from London to San Diego one-way?

What are the most popular routes from London to San Diego?

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What are the cheapest flights from London to San Diego?

Can I find deals for flights from London to San Diego that include hotel bookings?

How can I find direct flights from London to San Diego?

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Fly from London to San Diego on these airlines

Choose from the following airlines for your flight from London to San Diego. Flights are based on user searches made on Cheapflights and were last updated on 10 April 2025.

Top 10 airlines flying from London to San Diego

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Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 10 April 2025.