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£268+ 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 27/5. Fares are subject to change and may not be available on all flights or dates of travel.
— SJU
4 May — 11 May1
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 29 April 2025.

Return from

£526

One-way from

£268

Popular in

July

Cheapest in

September

Average price

£695
13/6-20/6
  • 13/6-20/6
  • 2 total stops
  • 45h 46m total
  • London to San Juan
27/5
  • 27/5
  • 3 total stops
  • 53h 06m total
  • London to San Juan
Highest demand for flights based on searches. 15% potential increase in price (£93 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).
Average for return flights in April 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 29 April 2025.

Fri 13/614:00LGW - SJU
1 stop16h 31mMultiple Airlines
Fri 20/620:45SJU - LGW
1 stop29h 15mMultiple Airlines
Deal found 29/4£526
Mon 12/508:15LHR - SJU
2 stops30h 21mIcelandair
Mon 19/508:00SJU - LHR
1 stop17h 30mIcelandair
Deal found 28/4£529
Fri 26/908:15LHR - SJU
1 stop18h 03mJetBlue
Sun 5/1003:15SJU - LHR
1 stop12h 30mJetBlue
Deal found 29/4£540
Wed 11/612:10LGW - SJU
1 stop16h 15mJetBlue
Mon 23/615:00SJU - LGW
1 stop13h 35mJetBlue
Deal found 29/4£547
Sat 28/612:10LGW - SJU
1 stop17h 39mIcelandair
Sat 5/715:00SJU - LGW
1 stop13h 35mIcelandair
Deal found 29/4£556
Tue 27/520:10LHR - SJU
2 stops42h 50mMultiple Airlines
Tue 3/621:30SJU - LHR
1 stop17h 15mMultiple Airlines
Deal found 29/4£590
Thu 6/1110:45LHR - SJU
1 stop13h 10mIberia
Sat 15/1118:25SJU - LHR
2 stops17h 50mIberia
Deal found 29/4£611
Tue 9/907:35LGW - SJU
2 stops15h 55mIberia
Wed 24/913:55SJU - LGW
2 stops24h 35mIberia
Deal found 28/4£617
Wed 4/608:45LCY - SJU
3 stops31h 46mMultiple Airlines
Mon 9/601:59SJU - LCY
3 stops34h 31mMultiple Airlines
Deal found 28/4£642
Thu 6/1110:40LGW - SJU
2 stops20h 37mTAP AIR PORTUGAL
Sat 15/1106:15SJU - LGW
2 stops23h 35mTAP AIR PORTUGAL
Deal found 28/4£657
Thu 6/1110:55STN - SJU
3 stops43h 16mMultiple Airlines
Sat 15/1118:41SJU - STN
3 stops35h 14mMultiple Airlines
Deal found 28/4£689
Mon 1/908:40LCY - SJU
2 stops19h 15mBritish Airways
Sat 27/908:30SJU - LCY
2 stops29h 00mBritish Airways
Deal found 28/4£759

Cheapflights Fare Finder

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 29 April 2025.
Use the filters below to find and compare flights to San Juan that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Fri 13/6

14:00-01:31

1 stop16h 31m

San Juan Luis Munoz Marin Intl

Fri 20/6

20:45-07:00

1 stop29h 15m

£526

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 12/5

08:15-09:36

2 stops30h 21m

San Juan Luis Munoz Marin Intl

Mon 19/5

08:00-06:30

1 stop17h 30m

£529

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 11/6

12:10-23:25

1 stop16h 15m

San Juan Luis Munoz Marin Intl

Mon 23/6

15:00-09:35

1 stop13h 35m

£547

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 11/6

08:25-17:30

1 stop14h 05m

San Juan Luis Munoz Marin Intl

Wed 18/6

06:00-06:30

1 stop19h 30m

£549

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 28/6

12:10-00:49

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Sat 5/7

15:00-09:35

1 stop13h 35m

£556

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 7/7

20:10-10:02

1 stop18h 52m

San Juan Luis Munoz Marin Intl

Fri 11/7

06:00-06:25

1 stop19h 25m

£567

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 4/6

08:45-11:31

3 stops31h 46m

San Juan Luis Munoz Marin Intl

Mon 9/6

01:59-17:30

3 stops34h 31m

£642

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 9/6

20:00-15:05

1 stop24h 05m

San Juan Luis Munoz Marin Intl

Fri 13/6

13:35-09:25

1 stop14h 50m

£689

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 11/6

06:30-18:36

3 stops41h 06m

San Juan Luis Munoz Marin Intl

Mon 23/6

14:10-00:10

3 stops29h 00m

£712

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Sat 5/7

20:40-15:05

1 stop23h 25m

San Juan Luis Munoz Marin Intl

Tue 12/8

16:50-10:50

1 stop13h 00m

£794

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 39 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.

Cheapflights Insights

Everything you need to know about your flight to San Juan

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 25 April 2025.

Booking 89 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 2 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 29 April 2025.
See what other customers who have flown with Delta, KLM and United Airlines 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.

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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
8.0
Very Good

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

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

FAQs about flying to San Juan

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 £319, however they can be found for as little as £89.

  • 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 (14 hours 5 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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