Find flights
Airlines
Travel Guide

£196+ 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
30 مارس — 6 أبريل1
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 25 مارس 2025.

Return from

£498

One-way from

£196

Popular in

December

Cheapest in

September

Average price

£585
Icelandair
  • Icelandair
  • 9/9-24/9
  • 4 total stops
  • 35h 40m 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. 0% potential increase in price.
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for return flights in March 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 25 مارس 2025.

ث 9/912:10LGW - SJU
2 stops18h 35mIcelandair
ر 24/911:30SJU - LGW
2 stops17h 05mIcelandair
Deal found 24/3£500
ر 3/907:50LHR - SJU
1 stop15h 40mFinnair
خ 18/913:55SJU - LHR
1 stop14h 30mFinnair
Deal found 24/3£508
ث 9/908:15LHR - SJU
1 stop22h 30mIcelandair
ث 23/903:15SJU - LHR
1 stop12h 30mIcelandair
Deal found 24/3£509
ن 3/1108:25LHR - SJU
1 stop18h 35mJetBlue
ث 11/1101:59SJU - LHR
1 stop14h 46mJetBlue
Deal found 24/3£510
ح 4/510:00LGW - SJU
1 stop27h 26mMultiple Airlines
ن 5/500:54SJU - LGW
3 stops37h 16mMultiple Airlines
Deal found 23/3£513
ن 1/906:05STN - SJU
1 stop17h 25mMultiple Airlines
خ 11/920:20SJU - STN
1 stop17h 35mMultiple Airlines
Deal found 24/3£571
ر 3/906:30LHR - SJU
2 stops17h 00mIberia
خ 18/913:55SJU - LHR
1 stop14h 30mIberia
Deal found 24/3£575
ر 28/507:05LHR - SJU
2 stops23h 54mMultiple Airlines
س 7/616:58SJU - LHR
2 stops45h 57mMultiple Airlines
Deal found 24/3£579
س 30/812:10LGW - SJU
1 stop18h 21mJetBlue
ر 10/912:55SJU - LGW
1 stop15h 40mJetBlue
Deal found 24/3£622
ر 23/408:45LCY - SJU
2 stops18h 49mMultiple Airlines
ر 30/414:40SJU - LCY
2 stops16h 50mMultiple Airlines
Deal found 24/3£653
خ 6/1110:40LGW - SJU
2 stops20h 37mTAP AIR PORTUGAL
س 15/1106:15SJU - LGW
2 stops23h 35mTAP AIR PORTUGAL
Deal found 24/3£667
خ 6/1112:25LHR - SJU
2 stops19h 55mTAP AIR PORTUGAL
س 15/1106:15SJU - LHR
2 stops25h 10mTAP AIR PORTUGAL
Deal found 24/3£670

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 25 مارس 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

ث 9/9

12:10-01:45

2 stops18h 35m

San Juan Luis Munoz Marin Intl

ر 24/9

11:30-09:35

2 stops17h 05m

£500

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

ر 3/9

07:50-18:30

1 stop15h 40m

San Juan Luis Munoz Marin Intl

خ 18/9

13:55-09:25

1 stop14h 30m

£508

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

ث 9/9

08:15-01:45

1 stop22h 30m

San Juan Luis Munoz Marin Intl

ث 23/9

03:15-20:45

1 stop12h 30m

£509

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

ح 4/5

10:00-08:26

1 stop27h 26m

San Juan Luis Munoz Marin Intl

ن 5/5

00:54-19:10

3 stops37h 16m

£513

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

ر 23/4

08:25-00:06

1 stop20h 41m

San Juan Luis Munoz Marin Intl

ث 29/4

03:28-20:45

1 stop12h 17m

£520

LondonSan Juan

STN - SJU

STNSJU

London Stansted

ن 1/9

06:05-18:30

1 stop17h 25m

San Juan Luis Munoz Marin Intl

خ 11/9

20:20-18:55

1 stop17h 35m

£571

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

ر 3/9

06:30-18:30

2 stops17h 00m

San Juan Luis Munoz Marin Intl

خ 18/9

13:55-09:25

1 stop14h 30m

£575

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

ر 28/5

07:05-01:59

2 stops23h 54m

San Juan Luis Munoz Marin Intl

س 7/6

16:58-19:55

2 stops45h 57m

£579

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

س 30/8

12:10-01:31

1 stop18h 21m

San Juan Luis Munoz Marin Intl

ر 10/9

12:55-09:35

1 stop15h 40m

£622

LondonSan Juan

LCY - SJU

LCYSJU

London City

ر 23/4

08:45-22:34

2 stops18h 49m

San Juan Luis Munoz Marin Intl

ر 30/4

14:40-12:30

2 stops16h 50m

£653

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 44 results
1
2
3
...
5

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 21 March 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 19 hours 19 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 25 مارس 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.

Boarding

8.2

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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

Overall

8.0

Comfort

8.0

Food

7.3

Crew

8.5

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 £228, however they can be found for as little as £86.

  • 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 (12 hours 0 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

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.

Airports serving San Juan

Book a flight to or from one of these San Juan airports.

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 to San Juan?

Cheapflights makes it easy to find San Juan 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 to San Juan?

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 to San Juan.

Can Cheapflights find flights to San Juan with no change fees?

Yes! Cheapflights helps users easily find flights to San Juan with no change fees.

Can Cheapflights notify me if prices for flights to San Juan become cheaper?

Not ready to book yet? You can track prices for flights to San Juan on Cheapflights with our Price Alerts 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.