What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?

The cheapet airlines for a one-way flight from Orange County to London Heathrow Airport are Delta (£318), United Airlines (£318), and Air Canada (£330).

How far in advance should I book a flight from Orange County to London Heathrow Airport?

Find a great deal and save up to 42% by booking at least 56 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 Orange County to London Heathrow Airport within the next two weeks, with the cheapest ticket starting at £545.

What is the cheapest month to fly from Orange County to London Heathrow Airport?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, October can be a great choice for travel to London Heathrow Airport. Flights to London Heathrow Airport from Orange County in October are about £556 on average during October, but can be found for as low as £330.

What is the cheapest time of day to fly from KFI to LHR?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Orange County to London Heathrow Airport as you normally would.

Can I find deals for flights from Orange County to Heathrow that include hotel bookings?

Yes. In addition to deals on Orange County to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Orange County to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Orange County to Heathrow.

Can I find deals for business class flights from Orange County to Heathrow?

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

£318+ Flights from Orange County to London Heathrow Airport - Compare & Save Big

Cheap flight deals from Orange County to Heathrow

Round-trip from	£513
One-way from	£318
Popular in	December
Cheapest in	October
Average price	£505

Virgin Atlantic
24/9-2/10
4 total stops
72h 11m total
Orange County to London

Search Deals

Delta
1/9
1 total stop
12h 51m total
Orange County to London

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (£29 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Orange County to Heathrow

Cheapest flights from Orange County to Heathrow
Explore the most affordable flight options available from Orange County to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 April 2025.

Wed 24/912:59LGB - LHR

2 stops17h 16mVirgin Atlantic

Thu 2/1017:25LHR - LGB

2 stops54h 55mVirgin Atlantic

Deal found 27/4£513

Tue 23/910:15SNA - LHR

1 stop15h 35mVirgin Atlantic

Fri 24/1012:25LHR - SNA

1 stop16h 14mVirgin Atlantic

Deal found 26/4£515

Tue 13/514:15SNA - LHR

1 stop13h 30mUnited Airlines

Tue 20/514:05LHR - SNA

2 stops29h 51mUnited Airlines

Deal found 27/4£522

Tue 13/509:45SNA - LHR

1 stop16h 05mKLM

Tue 20/512:25LHR - SNA

1 stop15h 57mKLM

Deal found 27/4£539

Wed 24/907:10LGB - LHR

2 stops22h 00mMultiple Airlines

Thu 2/1010:55LHR - LGB

1 stop13h 25mMultiple Airlines

Deal found 27/4£542

Tue 2/1210:15SNA - LHR

2 stops18h 00mDelta

Tue 16/1212:10LHR - SNA

2 stops17h 47mDelta

Deal found 27/4£542

Sat 13/913:30SNA - LHR

2 stops33h 00mAir Canada

Sun 28/906:00LHR - SNA

2 stops38h 23mAir Canada

Deal found 27/4£551

Wed 1/1007:20SNA - LHR

2 stops18h 15mMultiple Airlines

Sun 19/1006:00LHR - SNA

2 stops38h 23mMultiple Airlines

Deal found 26/4£555

Wed 1/1012:59LGB - LHR

1 stop12h 51mDelta

Sun 19/1010:55LHR - LGB

1 stop18h 51mDelta

Deal found 26/4£577

Tue 23/910:21SNA - LHR

2 stops25h 59mIcelandair

Fri 24/1021:25LHR - SNA

2 stops33h 05mIcelandair

Deal found 26/4£714

Thu 15/507:01LGB - LHR

2 stops23h 14mKLM

Mon 19/520:55LHR - LGB

2 stops27h 18mKLM

Deal found 27/4£719

Sun 25/511:10SNA - LHR

2 stops20h 50mScandinavian Airlines

Mon 9/606:40LHR - SNA

2 stops23h 55mScandinavian Airlines

Deal found 27/4£721

Best flights from Orange County to Heathrow
Discover carefully curated flight deals from Orange County to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 28 April 2025.

Wed 24/912:59LGB - LHR

2 stops17h 16mVirgin Atlantic

Thu 2/1017:25LHR - LGB

2 stops54h 55mVirgin Atlantic

Deal found 27/4£513

Tue 13/514:15SNA - LHR

1 stop13h 30mUnited Airlines

Tue 20/514:05LHR - SNA

2 stops29h 51mUnited Airlines

Deal found 27/4£522

Tue 13/509:45SNA - LHR

1 stop16h 05mKLM

Tue 20/512:25LHR - SNA

1 stop15h 57mKLM

Deal found 27/4£539

Wed 24/907:10LGB - LHR

2 stops22h 00mMultiple Airlines

Thu 2/1010:55LHR - LGB

1 stop13h 25mMultiple Airlines

Deal found 27/4£542

Sat 13/913:30SNA - LHR

2 stops33h 00mAir Canada

Sun 28/906:00LHR - SNA

2 stops38h 23mAir Canada

Deal found 27/4£551

Tue 30/912:15SNA - LHR

1 stop12h 40mDelta

Sun 19/1006:30LHR - SNA

2 stops19h 50mDelta

Deal found 26/4£566

Tue 23/910:21SNA - LHR

2 stops25h 59mIcelandair

Fri 24/1021:25LHR - SNA

2 stops33h 05mIcelandair

Deal found 26/4£714

Sun 25/511:10SNA - LHR

2 stops20h 50mScandinavian Airlines

Mon 9/606:40LHR - SNA

2 stops23h 55mScandinavian Airlines

Deal found 27/4£721

Thu 8/513:30SNA - LHR

2 stops16h 25mAer Lingus

Fri 16/508:50LHR - SNA

2 stops22h 05mAer Lingus

Deal found 26/4£826

Sat 10/510:25SNA - LHR

1 stop16h 25mIberia

Sat 17/506:15LHR - SNA

2 stops21h 53mIberia

Deal found 26/4£877

Fri 25/711:30SNA - LHR

1 stop16h 50mLufthansa

Tue 5/811:25LHR - SNA

1 stop17h 42mLufthansa

Deal found 27/4£910

Tue 27/512:50SNA - LHR

1 stop15h 15mWestJet

Mon 9/613:55LHR - SNA

1 stop30h 04mWestJet

Deal found 26/4£1,002

Last-minute flights from Orange County to Heathrow
Discover last-minute flight deals from Orange County to Heathrow. Data last updated 28 April 2025 and is based on user searches.

Fri 2/513:25SNA - LHR

2 stops16h 05mVirgin Atlantic

Fri 9/506:30LHR - SNA

2 stops21h 52mVirgin Atlantic

Deal found 26/4£772

Sun 4/507:10LGB - LHR

2 stops22h 00mMultiple Airlines

Sun 11/511:45LHR - LGB

2 stops17h 47mMultiple Airlines

Deal found 27/4£745

Sun 4/517:00LGB - LHR

1 stop32h 50mKLM

Sun 11/520:55LHR - LGB

2 stops32h 37mKLM

Deal found 27/4£756

Thu 8/513:30SNA - LHR

2 stops16h 25mAer Lingus

Fri 16/508:50LHR - SNA

2 stops22h 05mAer Lingus

Deal found 26/4£826

Sat 10/506:45SNA - LHR

2 stops15h 50mMultiple Airlines

Sat 17/509:30LHR - SNA

2 stops35h 02mMultiple Airlines

Deal found 26/4£611

Sat 10/507:01LGB - LHR

1 stop18h 49mKLM

Sat 17/511:45LHR - LGB

2 stops17h 47mKLM

Deal found 26/4£617

Sat 10/507:01LGB - LHR

2 stops39h 24mVirgin Atlantic

Fri 23/511:45LHR - LGB

2 stops36h 28mVirgin Atlantic

Deal found 26/4£743

Sat 10/510:25SNA - LHR

1 stop16h 25mIberia

Sat 17/506:15LHR - SNA

2 stops21h 53mIberia

Deal found 26/4£877

Sun 11/507:01LGB - LHR

2 stops20h 19mMultiple Airlines

Sat 24/509:40LHR - LGB

2 stops19h 52mMultiple Airlines

Deal found 27/4£704

Tue 13/514:15SNA - LHR

1 stop13h 30mUnited Airlines

Tue 20/514:05LHR - SNA

2 stops29h 51mUnited Airlines

Deal found 27/4£522

Tue 13/509:45SNA - LHR

1 stop16h 05mKLM

Tue 20/512:25LHR - SNA

1 stop15h 57mKLM

Deal found 27/4£539

Wed 14/511:10SNA - LHR

1 stop19h 05mDelta

Fri 23/511:45LHR - SNA

2 stops18h 02mDelta

Deal found 28/4£825

One-way flights from Orange County to Heathrow
Search for one-way flight options from Orange County to Heathrow. Find affordable one-way fares based on user searches. Data last updated 28 April 2025.

Mon 1/912:59LGB - LHR

1 stop12h 51mDelta

Deal found 27/4£318

Sun 31/821:14SNA - LHR

1 stop15h 26mUnited Airlines

Deal found 27/4£318

Fri 6/613:25SNA - LHR

3 stops33h 05mAir Canada

Deal found 27/4£330

Fri 6/615:02SNA - LHR

2 stops45h 18mMultiple Airlines

Deal found 27/4£355

Sun 27/710:30SNA - LHR

1 stop13h 50mBrussels Airlines

Deal found 27/4£391

Mon 5/513:25SNA - LHR

1 stop12h 25mVirgin Atlantic

Deal found 27/4£399

Sun 20/716:30SNA - LHR

1 stop12h 20mBritish Airways

Deal found 27/4£400

Sun 6/713:55SNA - LHR

1 stop16h 20mDelta

Deal found 27/4£408

Wed 9/713:15LGB - LHR

2 stops20h 00mVirgin Atlantic

Deal found 26/4£412

Sun 4/507:10LGB - LHR

2 stops19h 15mAir France

Deal found 28/4£442

Sun 4/517:00LGB - LHR

2 stops37h 15mKLM

Deal found 28/4£448

Mon 5/513:30SNA - LHR

2 stops18h 25mAer Lingus

Deal found 27/4£449

Cheapflights Fare Finder

Use the filters below to find and compare flights from Orange County to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 24/9

12:59-14:15

2 stops17h 16m

London Heathrow

Thu 2/10

17:25-16:20

2 stops54h 55m

£513

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 23/9

10:15-09:50

1 stop15h 35m

London Heathrow

Fri 24/10

12:25-20:39

1 stop16h 14m

£515

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 13/5

14:15-11:45

1 stop13h 30m

London Heathrow

Tue 20/5

14:05-11:56

2 stops29h 51m

£522

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 13/5

09:45-09:50

1 stop16h 05m

London Heathrow

Tue 20/5

12:25-20:22

1 stop15h 57m

£539

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 24/9

07:10-13:10

2 stops22h 00m

London Heathrow

Thu 2/10

10:55-16:20

1 stop13h 25m

£542

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Sat 13/9

13:30-06:30

2 stops33h 00m

London Heathrow

Sun 28/9

06:00-12:23

2 stops38h 23m

£551

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Wed 1/10

07:20-09:35

2 stops18h 15m

London Heathrow

Sun 19/10

06:00-12:23

2 stops38h 23m

£555

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 30/9

12:15-08:55

1 stop12h 40m

London Heathrow

Sun 19/10

06:30-18:20

2 stops19h 50m

£566

Long BeachLondon

LGB - LHR

LGBLHR

Long Beach Municipal

Wed 1/10

12:59-09:50

1 stop12h 51m

London Heathrow

Sun 19/10

10:55-21:46

1 stop18h 51m

£577

Santa AnaLondon

SNA - LHR

SNALHR

Santa Ana J. Wayne/Orange Cnty

Tue 23/9

10:21-20:20

2 stops25h 59m

London Heathrow

Fri 24/10

21:25-22:30

2 stops33h 05m

£714

Flights are sorted by cheapest return flights first.

Deals found on 27/4

Showing 1-10 of 36 results

Best time to book a flight from Orange County to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Orange County 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 Orange County to London Heathrow Airport

What is the cheapest month to book a flight from Orange County to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £112). Flying from Orange County to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

Rainfall in Heathrow by month

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Orange County to London, such as Delta, KLM and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta

8.0

Very Good

7,927 reviews

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Air France

7.4

Good

1,444 reviews

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

United Airlines

7.4

Good

8,694 reviews

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very Good

7,927 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?
The cheapet airlines for a one-way flight from Orange County to London Heathrow Airport are Delta (£318), United Airlines (£318), and Air Canada (£330).
Can I find deals for flights from Orange County to Heathrow that include hotel bookings?
Yes. In addition to deals on Orange County to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Orange County to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Orange County to Heathrow.
Can I find deals for business class flights from Orange County to Heathrow?
Yes. Cheapflights offers flight deals from Orange County to Heathrow 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 Orange County to London Heathrow Airport?
Currently, January is the cheapest month in which you can book a flight from Orange County to London Heathrow Airport (average of £112). Flying from Orange County to London Heathrow Airport in August is currently the most expensive (average of £164). 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

Deal

Hounslow

Milton Keynes

Gatwick

Luton

Slough

Croydon

Eastbourne

Northampton

Ilford

Hayes

Southend-on-Sea

Crawley

Wembley

Ipswich

Maidstone

Winchester

Swindon

Folkestone

Dartford

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Orange County to Heathrow?

Deals for Orange County to Heathrow flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Orange County to Heathrow?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Orange County to Heathrow.

Can Cheapflights find flights from Orange County to Heathrow with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights from Orange County to Heathrow, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights from Orange County to Heathrow become cheaper?

Not ready to book yet? You can track prices for flights from Orange County to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

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 Orange County to London Heathrow Airport from £318

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Orange County to Heathrow

Keep the following information in mind while searching for Orange County to Heathrow flight deals. Data was last updated 28 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Orange County to Heathrow

Cheapest flights from Orange County to HeathrowExplore the most affordable flight options available from Orange County to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 April 2025.

Explore the most affordable flight options available from Orange County to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 April 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Orange County to London Heathrow Airport that are best for you.

Best time to book a flight from Orange County to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Orange County with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Orange County to London Heathrow Airport

What is the cheapest month to book a flight from Orange County to London Heathrow Airport?

Rainfall in Heathrow by month

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

Temperature in Heathrow by month

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

Reviews of airlines servicing Heathrow

Read through reviews of airlines operating flights from Orange County to London, such as Delta, KLM and Air France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

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

What are the cheapest airlines to fly from Orange County to London Heathrow Airport one-way?

Can I find deals for flights from Orange County to Heathrow that include hotel bookings?

How can I find direct flights from Orange County to Heathrow?

Can I find deals for business class flights from Orange County to Heathrow?

What is the cheapest month to book a flight from Orange County to London Heathrow Airport?

Travelling to a place near Orange County?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Orange County to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Orange County to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Orange County to Heathrow?

Can Cheapflights find flights from Orange County to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Orange County to Heathrow become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Orange County to Heathrow
Explore the most affordable flight options available from Orange County to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 28 April 2025.