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£320+ Cheap flights to San Juan

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 23/3. Fares are subject to change and may not be available on all flights or dates of travel.
— SJU
26 Feb — 5 Mar1
1 adult

Flights to San Juan in 2025

Find the latest flights to San Juan in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 February 2025.

Return from

£505

One-way from

£320

Popular in

August

Cheapest in

January

Average price

£589
1/4-8/4
  • 1/4-8/4
  • 3 total stops
  • 50h 44m total
  • London to San Juan
23/3
  • 23/3
  • 2 total stops
  • 42h 06m total
  • London to San Juan
Highest demand for flights based on searches. 9% potential increase in price (£58 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for return flights in February 2025

Find flight deals to San Juan

Cheapest flights to San Juan
Explore the most affordable flight options available to San Juan. Find the lowest fares based on data from user searches, with prices last updated on 21 February 2025.

Tue 1/413:00LGW - SJU
2 stops31h 12mMultiple Airlines
Tue 8/409:28SJU - LGW
1 stop19h 32mMultiple Airlines
Deal found 20/2£505
Sat 1/319:50LHR - SJU
1 stop19h 01mMultiple Airlines
Tue 4/322:31SJU - LHR
1 stop17h 29mMultiple Airlines
Deal found 20/2£506
Thu 20/307:25LHR - SJU
1 stop17h 25mJetBlue
Thu 27/304:00SJU - LHR
1 stop12h 45mJetBlue
Deal found 19/2£525
Tue 1/411:40STN - SJU
3 stops31h 27mMultiple Airlines
Tue 8/421:51SJU - STN
3 stops31h 49mMultiple Airlines
Deal found 20/2£530
Thu 13/306:15LHR - SJU
1 stop17h 30mFinnair
Sun 23/315:30SJU - LHR
1 stop16h 50mFinnair
Deal found 20/2£541
Thu 6/1108:25LHR - SJU
1 stop23h 55mIcelandair
Fri 14/1101:59SJU - LHR
1 stop14h 46mIcelandair
Deal found 20/2£606
Tue 1/413:05LCY - SJU
3 stops30h 02mMultiple Airlines
Mon 7/403:05SJU - LCY
3 stops33h 25mMultiple Airlines
Deal found 20/2£613
Thu 6/1112:25LHR - SJU
2 stops19h 55mTAP AIR PORTUGAL
Sat 15/1106:15SJU - LHR
2 stops25h 10mTAP AIR PORTUGAL
Deal found 20/2£669
Fri 5/1210:40LGW - SJU
2 stops20h 37mTAP AIR PORTUGAL
Fri 12/1207:10SJU - LGW
2 stops28h 35mTAP AIR PORTUGAL
Deal found 19/2£684
Tue 9/913:00LGW - SJU
2 stops17h 15mIcelandair
Wed 24/914:30SJU - LGW
2 stops19h 10mIcelandair
Deal found 20/2£695
Sat 20/911:35LGW - SJU
1 stop11h 55mIberia
Sun 28/920:20SJU - LGW
1 stop18h 40mIberia
Deal found 20/2£771
Sat 16/811:30LHR - SJU
1 stop12h 00mIberia
Sun 24/814:05SJU - LHR
1 stop14h 20mIberia
Deal found 20/2£813

Find flights to San Juan within your budget

Locate flights to San Juan that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 21 February 2025.

Fly from

London

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 1/4

13:00-15:12

2 stops31h 12m

San Juan Luis Munoz Marin Intl

Tue 8/4

09:28-10:00

1 stop19h 32m

£505

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sat 8/3

19:50-09:51

1 stop18h 01m

San Juan Luis Munoz Marin Intl

Tue 11/3

09:44-06:30

1 stop16h 46m

£521

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 20/3

07:25-20:50

1 stop17h 25m

San Juan Luis Munoz Marin Intl

Thu 27/3

04:00-20:45

1 stop12h 45m

£525

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Tue 1/4

11:40-14:07

3 stops31h 27m

San Juan Luis Munoz Marin Intl

Tue 8/4

21:51-10:40

3 stops31h 49m

£530

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 13/3

06:15-19:45

1 stop17h 30m

San Juan Luis Munoz Marin Intl

Sun 23/3

15:30-12:20

1 stop16h 50m

£541

LondonSan Juan

LCY - SJU

LCYSJU

London City

Tue 1/4

13:05-14:07

3 stops30h 02m

San Juan Luis Munoz Marin Intl

Mon 7/4

03:05-17:30

3 stops33h 25m

£613

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 1/4

11:55-20:57

1 stop14h 02m

San Juan Luis Munoz Marin Intl

Mon 7/4

00:55-20:45

1 stop14h 50m

£627

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 3/3

10:40-14:57

2 stops32h 17m

San Juan Luis Munoz Marin Intl

Tue 11/3

15:25-15:45

2 stops20h 20m

£698

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 3/3

13:40-14:57

2 stops29h 17m

San Juan Luis Munoz Marin Intl

Tue 11/3

15:25-17:30

2 stops22h 05m

£702

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Mon 28/4

15:40-11:57

2 stops25h 17m

San Juan Luis Munoz Marin Intl

Fri 2/5

11:55-11:45

2 stops18h 50m

£722

Flights are sorted by cheapest return flights first.

Deals found on 20/2

Showing 1-10 of 51 results
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Best time to book a flight to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan 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.

Travel insights for flights to San Juan

Get recent, data-driven insights about flights to San Juan including ideal travel times, pricing trends, and more.

When is the best time to book a flight to San Juan?

Use this chart to determine the optimal time to book a return flight from London to San Juan. Price data was last updated on 14 February 2025.

Booking 56 days in advance of your planned departure date is, on average, the best time to get cheap flights to San Juan. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

How long is the flight to San Juan?

On average, a flight from London to San Juan takes 20 hours 26 minutes. Flights to San Juan from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

When is the cheapest time to fly to San Juan?

Use this chart to determine the cheapest time to fly return from London to San Juan. Price data was last updated on 16 December 2024.

Users looking for the lowest fares to San Juan should consider flying on Monday evenings, when prices are typically cheapest. Budget-minded travellers will want to avoid Thursday evenings, when prices are usually at their highest.

What are the cheapest airlines that fly to San Juan?

The cheapest airlines flying from London to San Juan are Finnair, Icelandair and JetBlue.

Rainfall in San Juan by month

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

In terms of precipitation, rainfall in San Juan ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan when rainfall is around 55.0 mm.

Temperature in San Juan by month

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

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

Reviews of airlines servicing San Juan

Get insights into the airlines that provide service to San Juan. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Juan. Reviews last updated 21 February 2025.
See what other customers who have flown with Delta, KLM and Finnair to San Juan have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

8.0
Very Good

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

Comfort

8.0

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Boarding

8.2

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.

San Juan climate

The climate is tropical with summer temperatures in the 18-35 degree range. Thunderstorms are likely between April and November and hurricane season runs June to November. Further inland, temperatures drop a couple of degrees.

Getting around San Juan

Buses run in some, but not all areas of the city. There are taxis, but you’ll have to negotiate a price with the driver based on your destination. Rental cars are available as well, but make sure you have your ID handy. Some streets are not as well marked as others.

Local Airport

Luis Munoz Marin International Airport (SJU) is located 9 miles (14 km) east of San Juan.

What is good to know if travelling to San Juan?

  • One venue for Puerto Rico’s Latino chic is surprising — the Museo de Arte. Some Puerto Ricans come to the art museum at least once a week, and not just for its fine collection of Puerto Rican art. They also come for productions in the 400-seat theatre. And trendy locals can be seen strolling the museum’s lovely five-acre garden. 
  • San Juan has done a great job of adapting old buildings to new uses. La Princesa, for centuries one of the most feared prisons in the Caribbean, now houses the Puerto Rico Tourism Company. It features an exhibit of art by Puerto Ricans, which is free to the public.
  • Another example of reuse is the 19th-century insane asylum, the Antiguo Manicomio Insular, which is now the home of the Puerto Rican Academy of Fine Arts, with its lovely courtyard fountains surrounded by elegant iron fences.
  • Can I find cheaper flights to San Juan if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to San Juan on Cheapflights that require 1 or 2 stops for potential cost savings.

  • What is the best airline to fly to San Juan?

    Based on reviews from Cheapflights users, Finnair is rated the highest out of the airlines that fly to San Juan.

  • How much is a return flight to San Juan?

    A return flight to San Juan will typically cost around £281, however they can be found for as little as £104.

  • Where does the fastest flight to San Juan depart from?

    For those looking to save time traveling to San Juan, London offers the quickest one-way flight (11 hours 55 minutes).

  • Does San Juan Luis Munoz Marin Intl have car hire?

    Yes. Those touching down at San Juan Luis Munoz Marin Intl can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to San Juan Luis Munoz Marin Intl?

    Yes. San Juan Luis Munoz Marin Intl has hotels nearby for those requiring accommodations. San Juan Airport Hotel is the closest property to San Juan Luis Munoz Marin Intl (0.0 mi away from San Juan Luis Munoz Marin Intl).

See more FAQs

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Airports serving San Juan

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