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£208+ 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 28/4. Fares are subject to change and may not be available on all flights or dates of travel.
— SJU
20 Apr — 27 Apr1
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 15 April 2025.

Return from

£514

One-way from

£208

Popular in

July

Cheapest in

September

Average price

£706
JetBlue
  • JetBlue
  • 6/5-13/5
  • 2 total stops
  • 29h 07m total
  • London to San Juan
28/4
  • 28/4
  • 1 total stop
  • 27h 26m 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 15 April 2025.

Tue 29/411:40STN - SJU
3 stops32h 55mMultiple Airlines
Fri 2/500:30SJU - STN
2 stops29h 10mMultiple Airlines
Deal found 13/4£507
Tue 6/508:15LHR - SJU
1 stop18h 15mJetBlue
Mon 12/503:33SJU - LHR
1 stop12h 12mJetBlue
Deal found 14/4£514
Thu 27/1108:25LHR - SJU
1 stop23h 55mIcelandair
Sun 7/1217:40SJU - LHR
1 stop23h 05mIcelandair
Deal found 14/4£515
Tue 29/410:00LGW - SJU
1 stop27h 26mMultiple Airlines
Sat 3/521:30SJU - LGW
1 stop31h 40mMultiple Airlines
Deal found 14/4£536
Wed 3/906:30LHR - SJU
2 stops17h 00mIberia
Thu 18/913:55SJU - LHR
1 stop15h 40mIberia
Deal found 14/4£541
Wed 11/612:10LGW - SJU
1 stop33h 30mIcelandair
Mon 23/606:05SJU - LGW
1 stop22h 30mIcelandair
Deal found 14/4£570
Mon 5/511:20LHR - SJU
2 stops20h 31mMultiple Airlines
Sun 11/506:00SJU - LHR
2 stops43h 45mMultiple Airlines
Deal found 14/4£580
Thu 29/512:10LGW - SJU
1 stop16h 15mJetBlue
Thu 5/612:30SJU - LGW
1 stop16h 05mJetBlue
Deal found 14/4£595
Thu 6/1110:40LGW - SJU
2 stops20h 37mTAP AIR PORTUGAL
Sat 15/1107:10SJU - LGW
2 stops22h 40mTAP AIR PORTUGAL
Deal found 14/4£657
Thu 27/1112:25LHR - SJU
2 stops19h 55mTAP AIR PORTUGAL
Sun 7/1206:15SJU - LHR
2 stops26h 25mTAP AIR PORTUGAL
Deal found 14/4£660
Wed 11/608:45LCY - SJU
3 stops30h 01mMultiple Airlines
Sun 22/602:18SJU - LCY
2 stops33h 07mMultiple Airlines
Deal found 14/4£669
Mon 12/516:40LHR - SJU
2 stops32h 58mUnited Airlines
Sun 18/501:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 14/4£688

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 15 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

STN - SJU

STNSJU

London Stansted

Tue 29/4

11:40-15:35

3 stops32h 55m

San Juan Luis Munoz Marin Intl

Fri 2/5

00:30-10:40

2 stops29h 10m

£507

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 6/5

11:55-21:30

1 stop14h 35m

San Juan Luis Munoz Marin Intl

Tue 13/5

13:58-09:30

1 stop14h 32m

£514

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Thu 11/9

11:55-01:45

1 stop18h 50m

San Juan Luis Munoz Marin Intl

Wed 17/9

03:15-09:30

1 stop25h 15m

£524

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 29/4

10:00-08:26

1 stop27h 26m

San Juan Luis Munoz Marin Intl

Sat 3/5

21:30-10:10

1 stop31h 40m

£536

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 3/9

06:30-18:30

2 stops17h 00m

San Juan Luis Munoz Marin Intl

Thu 18/9

13:55-10:35

1 stop15h 40m

£541

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 11/6

12:10-16:40

1 stop33h 30m

San Juan Luis Munoz Marin Intl

Mon 23/6

06:05-09:35

1 stop22h 30m

£570

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 5/5

11:20-02:51

2 stops20h 31m

San Juan Luis Munoz Marin Intl

Sun 11/5

06:00-06:45

2 stops43h 45m

£580

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Thu 29/5

12:10-23:25

1 stop16h 15m

San Juan Luis Munoz Marin Intl

Thu 5/6

12:30-09:35

1 stop16h 05m

£595

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 11/6

08:45-09:46

3 stops30h 01m

San Juan Luis Munoz Marin Intl

Sun 22/6

02:18-16:25

2 stops33h 07m

£669

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Mon 12/5

16:40-15:40

2 stops28h 00m

San Juan Luis Munoz Marin Intl

Mon 19/5

07:45-05:55

2 stops17h 10m

£688

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 42 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 11 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 19 hours 53 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 15 April 2025.
See what other customers who have flown with Delta, Air France 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.

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Food

7.3

Entertainment

7.9

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 £188, however they can be found for as little as £126.

  • 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 35 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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