What are the cheapest airlines to fly from United Kingdom to San Juan one-way?

One-way options have recently been found by users for as low as £537 on Avianca. Other airlines that offer cheap prices include Icelandair from £540 and JetBlue from £545 one-way.

What are the most popular routes from United Kingdom to San Juan?

While some choose either London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl, London Heathrow - San Juan Luis Munoz Marin Intl is the most popular route from United Kingdom to San Juan.

What are the most popular airlines that fly from United Kingdom to San Juan?

Finnair, JetBlue and British Airways are the most popular airlines when flying from United Kingdom to San Juan.

How far in advance should I book a flight from United Kingdom to San Juan?

To save up to 59% on this flight, we recommend booking at least 57 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from United Kingdom to San Juan from £476 1-2 weeks out and tickets from £783 for flights departing within the next 72 hours.

What is the cheapest month to fly from United Kingdom to San Juan?

Due to multiple factors, expect to potentially pay more when booking in July. For low rates, September can be a great choice for travel to San Juan. Flights to San Juan from United Kingdom in September are about £671 on average during September, but can be found for as low as £444.

Can I find deals for flights from United Kingdom to San Juan that include hotel bookings?

Yes. In addition to deals on United Kingdom to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from United Kingdom to San Juan?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to San Juan.

Can I find deals for business class flights from United Kingdom to San Juan?

Yes. Cheapflights offers flight deals from United Kingdom to San Juan by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£731+ Flights from the United Kingdom to San Juan

Cheap flight deals from United Kingdom to San Juan

Round-trip from	£467
One-way from	£215
Popular in	July
Cheapest in	September
Average price	£632

Icelandair
3/9-18/9
2 total stops
45h 12m total
United Kingdom to San Juan

Search Deals

6/9
3 total stops
51h 50m total
United Kingdom to San Juan

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£90 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£19 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from United Kingdom to San Juan

Cheapest flights from United Kingdom to San Juan
Explore the most affordable flight options available from United Kingdom to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 June 2025.

Wed 3/908:25LHR - SJU

1 stop32h 42mIcelandair

Thu 18/913:00SJU - LHR

1 stop12h 30mIcelandair

Deal found 23/6£467

Tue 9/908:15LHR - SJU

1 stop13h 37mJetBlue

Sun 21/919:50SJU - LHR

1 stop29h 40mJetBlue

Deal found 22/6£472

Tue 19/814:00LGW - SJU

1 stop15h 44mMultiple Airlines

Wed 3/921:30SJU - LGW

1 stop27h 50mMultiple Airlines

Deal found 23/6£522

Tue 9/912:10LGW - SJU

1 stop28h 57mIcelandair

Wed 24/906:00SJU - LGW

2 stops22h 35mIcelandair

Deal found 23/6£525

Wed 6/812:10LGW - SJU

1 stop17h 39mJetBlue

Wed 13/812:45SJU - LGW

1 stop15h 50mJetBlue

Deal found 23/6£567

Sun 24/815:05LHR - SJU

3 stops26h 41mMultiple Airlines

Tue 26/801:59SJU - LHR

3 stops28h 56mMultiple Airlines

Deal found 22/6£567

Thu 7/812:10EDI - SJU

1 stop17h 39mJetBlue

Thu 14/812:45SJU - EDI

1 stop16h 25mJetBlue

Deal found 23/6£618

Wed 9/708:45LCY - SJU

3 stops31h 47mMultiple Airlines

Sun 13/701:37SJU - LCY

3 stops35h 58mMultiple Airlines

Deal found 22/6£629

Wed 29/1015:10LHR - SJU

1 stop36h 26mUnited Airlines

Tue 11/1102:05SJU - LHR

1 stop14h 30mUnited Airlines

Deal found 23/6£637

Thu 6/1110:40LGW - SJU

2 stops20h 37mTAP AIR PORTUGAL

Sat 15/1112:10SJU - LGW

2 stops17h 40mTAP AIR PORTUGAL

Deal found 23/6£683

Thu 6/1112:25LHR - SJU

2 stops18h 52mTAP AIR PORTUGAL

Sat 15/1112:10SJU - LHR

2 stops29h 25mTAP AIR PORTUGAL

Deal found 23/6£686

Thu 23/1014:20GLA - SJU

2 stops28h 25mMultiple Airlines

Fri 31/1013:20SJU - GLA

2 stops16h 35mMultiple Airlines

Deal found 23/6£693

Best flights from United Kingdom to San Juan
Discover carefully curated flight deals from United Kingdom to San Juan that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 June 2025.

Wed 3/908:25LHR - SJU

1 stop32h 42mIcelandair

Thu 18/913:00SJU - LHR

1 stop12h 30mIcelandair

Deal found 23/6£467

Tue 9/908:15LHR - SJU

1 stop13h 37mJetBlue

Sun 21/919:50SJU - LHR

1 stop29h 40mJetBlue

Deal found 22/6£472

Tue 19/814:00LGW - SJU

1 stop15h 44mMultiple Airlines

Wed 3/921:30SJU - LGW

1 stop27h 50mMultiple Airlines

Deal found 23/6£522

Wed 29/1015:10LHR - SJU

1 stop36h 26mUnited Airlines

Tue 11/1102:05SJU - LHR

1 stop14h 30mUnited Airlines

Deal found 23/6£637

Thu 6/1110:40LGW - SJU

2 stops20h 37mTAP AIR PORTUGAL

Sat 15/1112:10SJU - LGW

2 stops17h 40mTAP AIR PORTUGAL

Deal found 23/6£683

Tue 9/909:30LHR - SJU

1 stop19h 27mLufthansa

Tue 23/901:05SJU - LHR

1 stop14h 35mLufthansa

Deal found 23/6£725

Sat 20/909:30LHR - SJU

2 stops19h 27mAir Canada

Mon 29/901:05SJU - LHR

2 stops24h 25mAir Canada

Deal found 22/6£755

Thu 23/1008:35GLA - SJU

2 stops31h 40mIberia

Fri 31/1017:27SJU - GLA

2 stops17h 43mIberia

Deal found 23/6£843

Fri 1/814:40MAN - SJU

1 stop16h 40mAer Lingus

Sun 3/803:05SJU - MAN

1 stop22h 45mAer Lingus

Deal found 22/6£927

Fri 12/914:15MAN - SJU

1 stop13h 27mVirgin Atlantic

Fri 19/907:00SJU - MAN

1 stop19h 45mVirgin Atlantic

Deal found 23/6£946

Tue 19/810:00LCY - SJU

2 stops18h 51mKLM

Wed 3/913:18SJU - LCY

2 stops23h 02mKLM

Deal found 23/6£966

Tue 16/905:30LGW - SJU

2 stops40h 12mTurkish Airlines

Fri 26/914:05SJU - LGW

2 stops27h 15mTurkish Airlines

Deal found 22/6£995

Last-minute flights from United Kingdom to San Juan
Discover last-minute flight deals from United Kingdom to San Juan. Data last updated 24 June 2025 and is based on user searches.

Thu 3/708:25LHR - SJU

1 stop14h 45mJetBlue

Tue 12/806:00SJU - LHR

1 stop19h 30mJetBlue

Deal found 23/6£648

Thu 3/712:10LGW - SJU

1 stop17h 39mJetBlue

Tue 12/812:45SJU - LGW

1 stop15h 50mJetBlue

Deal found 22/6£717

Thu 3/708:25LHR - SJU

1 stop14h 45mIcelandair

Tue 12/810:35SJU - LHR

2 stops14h 55mIcelandair

Deal found 23/6£722

Thu 3/712:05LGW - SJU

2 stops26h 36mTAP AIR PORTUGAL

Tue 12/806:00SJU - LGW

2 stops22h 45mTAP AIR PORTUGAL

Deal found 23/6£1,116

Thu 3/717:15LGW - SJU

2 stops31h 50mTurkish Airlines

Mon 11/803:25SJU - LGW

2 stops28h 35mTurkish Airlines

Deal found 23/6£1,147

Thu 3/718:00LHR - SJU

2 stops31h 05mTurkish Airlines

Mon 11/803:25SJU - LHR

2 stops30h 40mTurkish Airlines

Deal found 23/6£1,179

Thu 3/719:10LCY - SJU

2 stops30h 28mLufthansa

Tue 12/813:25SJU - LCY

2 stops22h 00mLufthansa

Deal found 22/6£1,239

Wed 9/712:10LGW - SJU

1 stop17h 41mIcelandair

Mon 14/706:00SJU - LGW

1 stop22h 35mIcelandair

Deal found 22/6£551

Wed 9/712:10LGW - SJU

1 stop17h 41mJetBlue

Sat 19/715:25SJU - LGW

1 stop13h 10mJetBlue

Deal found 23/6£576

Wed 9/708:15LHR - SJU

1 stop23h 05mIcelandair

Sun 20/718:54SJU - LHR

1 stop30h 36mIcelandair

Deal found 23/6£592

Wed 9/713:05LGW - SJU

1 stop17h 58mMultiple Airlines

Fri 18/702:40SJU - LGW

2 stops22h 40mMultiple Airlines

Deal found 23/6£614

Wed 9/708:45LCY - SJU

3 stops31h 47mMultiple Airlines

Sun 13/701:37SJU - LCY

3 stops35h 58mMultiple Airlines

Deal found 22/6£629

One-way flights from United Kingdom to San Juan
Search for one-way flight options from United Kingdom to San Juan. Find affordable one-way fares based on user searches. Data last updated 24 June 2025.

Sat 6/915:25STN - SJU

3 stops51h 50mMultiple Airlines

Deal found 23/6£215

Wed 3/920:50LHR - SJU

3 stops56h 04mMultiple Airlines

Deal found 23/6£227

Sun 7/913:00LGW - SJU

3 stops30h 15mMultiple Airlines

Deal found 23/6£234

Thu 28/822:05LHR - SJU

1 stop23h 45mAvianca

Deal found 22/6£537

Fri 29/812:10LGW - SJU

1 stop27h 44mIcelandair

Deal found 22/6£540

Mon 1/908:25LHR - SJU

1 stop14h 17mJetBlue

Deal found 23/6£545

Thu 28/812:10LGW - SJU

1 stop18h 12mJetBlue

Deal found 23/6£545

Fri 1/820:45MAN - SJU

3 stops34h 23mMultiple Airlines

Deal found 22/6£584

Fri 29/819:50LHR - SJU

2 stops33h 59mTAP AIR PORTUGAL

Deal found 23/6£609

Tue 2/916:50LCY - SJU

3 stops29h 00mMultiple Airlines

Deal found 23/6£611

Thu 28/810:35LGW - SJU

2 stops30h 31mTAP AIR PORTUGAL

Deal found 22/6£642

Tue 2/906:45LCY - SJU

2 stops21h 49mAer Lingus

Deal found 23/6£762

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 3/9

08:25-12:07

1 stop32h 42m

San Juan Luis Munoz Marin Intl

Thu 18/9

13:00-06:30

1 stop12h 30m

£467

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Tue 9/9

08:15-16:52

1 stop13h 37m

San Juan Luis Munoz Marin Intl

Sun 21/9

19:50-06:30

1 stop29h 40m

£472

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 19/8

14:00-00:44

1 stop15h 44m

San Juan Luis Munoz Marin Intl

Wed 3/9

21:30-06:20

1 stop27h 50m

£522

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Tue 9/9

12:10-12:07

1 stop28h 57m

San Juan Luis Munoz Marin Intl

Wed 24/9

06:00-09:35

2 stops22h 35m

£525

LondonSan Juan

LGW - SJU

LGWSJU

London Gatwick

Wed 6/8

12:10-00:49

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Wed 13/8

12:45-09:35

1 stop15h 50m

£567

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Sun 24/8

15:05-12:46

3 stops26h 41m

San Juan Luis Munoz Marin Intl

Tue 26/8

01:59-11:55

3 stops28h 56m

£567

EdinburghSan Juan

EDI - SJU

EDISJU

Edinburgh Turnhouse

Thu 7/8

12:10-00:49

1 stop17h 39m

San Juan Luis Munoz Marin Intl

Thu 14/8

12:45-10:10

1 stop16h 25m

£618

LondonSan Juan

LCY - SJU

LCYSJU

London City

Wed 9/7

08:45-11:32

3 stops31h 47m

San Juan Luis Munoz Marin Intl

Sun 13/7

01:37-18:35

3 stops35h 58m

£629

LondonSan Juan

LHR - SJU

LHRSJU

London Heathrow

Wed 29/10

15:10-23:36

1 stop36h 26m

San Juan Luis Munoz Marin Intl

Tue 11/11

02:05-20:35

1 stop14h 30m

£637

ManchesterSan Juan

MAN - SJU

MANSJU

Manchester

Sat 1/11

14:15-00:43

1 stop14h 28m

San Juan Luis Munoz Marin Intl

Sat 15/11

07:30-06:50

1 stop19h 20m

£675

Flights are sorted by cheapest return flights first.

Deals found on 23/6

Showing 1-10 of 51 results

...

Best time to book a flight from United Kingdom to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from United Kingdom 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 the United Kingdom to San Juan

What is the cheapest month to book a flight from United Kingdom to San Juan?

Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Juan (average of £631). Flying from United Kingdom to San Juan in July is currently the most expensive (average of £1,027). 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.

What is the cheapest time of day to fly from GB to SJU?

When flying from United Kingdom to San Juan, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in San Juan 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

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

Peruse reviews from past customers who have flown with Delta, KLM and United Airlines from United Kingdom to San Juan to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Delta

8.0

Very Good

7,967 reviews

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

KLM

7.8

Good

1,365 reviews

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

United Airlines

7.4

Good

8,831 reviews

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Virgin Atlantic

7.4

Good

653 reviews

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

JetBlue

7.3

Good

2,922 reviews

Delta

8.0

Very Good

7,967 reviews

Check prices

Reviews

1 / 20

6.0

Good

Colin,Sept 2024

LHR - BOS

Delta One is very poor quality seating for first class. On multiple trips pieces have come off the seat. Staff and food have been good

Related info for your journey

What are the cheapest airlines to fly from United Kingdom to San Juan one-way?
One-way options have recently been found by users for as low as £537 on Avianca. Other airlines that offer cheap prices include Icelandair from £540 and JetBlue from £545 one-way.
What are the most popular routes from United Kingdom to San Juan?
While some choose either London Gatwick - San Juan Luis Munoz Marin Intl or London City - San Juan Luis Munoz Marin Intl, London Heathrow - San Juan Luis Munoz Marin Intl is the most popular route from United Kingdom to San Juan.
Can I find deals for flights from United Kingdom to San Juan that include hotel bookings?
Yes. In addition to deals on United Kingdom to San Juan flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from United Kingdom to San Juan?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to San Juan.
Can I find deals for business class flights from United Kingdom to San Juan?
Yes. Cheapflights offers flight deals from United Kingdom to San Juan 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 United Kingdom to San Juan?
Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Juan (average of £631). Flying from United Kingdom to San Juan in July is currently the most expensive (average of £1,027). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for United Kingdom to San Juan

Heathrow to Luis Munoz Marin Intl flights

Gatwick to Luis Munoz Marin Intl flights

London City to Luis Munoz Marin Intl flights

Manchester to Luis Munoz Marin Intl flights

Stansted to Luis Munoz Marin Intl flights

Birmingham to Luis Munoz Marin Intl flights

Heathrow to Aguadilla flights

Edinburgh to Luis Munoz Marin Intl flights

Glasgow Intl to Luis Munoz Marin Intl flights

Newcastle upon Tyne to Luis Munoz Marin Intl flights

Madrid to Luis Munoz Marin Intl flights

Dublin to Luis Munoz Marin Intl flights

Norwich to Luis Munoz Marin Intl flights

Complete your trip

San Juan car hire

San Juan Luis Munoz Marin Intl Airport car hire

Ponce Mercedita Airport car hire

San Juan Isla Grande Airport car hire

Vieques Airport car hire

Condado car hire

Santurce car hire

San Juan Antiguo car hire

Hato Rey Sur car hire

Hato Rey Norte car hire

Gobernador Piñero car hire

Hato Rey Central car hire

Top 8 airlines flying from United Kingdom to San Juan

Airline	Cheapest	Average	Flexibility	On-time
Virgin Atlantic	Cheapest£358	Average£1,075	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
JetBlue	Cheapest£412	Average£605	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Finnair	Cheapest£416	Average£610	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
Icelandair	Cheapest£424	Average£706	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£496	Average£882	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Iberia	Cheapest£511	Average£793	FlexibilityNo cancel fee	On-time77%	Search Iberia flights
Aer Lingus	Cheapest£656	Average£967	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£838	Average£1,119	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights

Fly with Cheapflights

How does Cheapflights help users find flights from United Kingdom to San Juan?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from United Kingdom to San Juan. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to San Juan?

Cheapflights helps you find that perfect flight to San Juan from United Kingdom by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights offers price alerts on United Kingdom to San Juan flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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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 the United Kingdom to San Juan from £215

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 6/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from United Kingdom to San Juan

Keep the following information in mind while searching for United Kingdom to San Juan flight deals. Data was last updated 24 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from United Kingdom to San Juan

Cheapest flights from United Kingdom to San JuanExplore the most affordable flight options available from United Kingdom to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 June 2025.

Explore the most affordable flight options available from United Kingdom to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 June 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from the United Kingdom to San Juan that are best for you.

Best time to book a flight from United Kingdom to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from United Kingdom with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from the United Kingdom to San Juan

What is the cheapest month to book a flight from United Kingdom to San Juan?

What is the cheapest time of day to fly from GB to SJU?

Find hourly flight availability from United Kingdom to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 24 June 2025.

Rainfall in San Juan by month

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

Temperature in San Juan by month

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

Reviews of airlines servicing San Juan

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to San Juan. 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 United Kingdom to San Juan one-way?

What are the most popular routes from United Kingdom to San Juan?

Can I find deals for flights from United Kingdom to San Juan that include hotel bookings?

How can I find direct flights from United Kingdom to San Juan?

Can I find deals for business class flights from United Kingdom to San Juan?

What is the cheapest month to book a flight from United Kingdom to San Juan?

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 United Kingdom to San Juan

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

Top 8 airlines flying from United Kingdom to San Juan

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 United Kingdom to San Juan?

Why should you use Cheapflights to find cheap flight tickets from United Kingdom to San Juan?

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

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

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Cheapest flights from United Kingdom to San Juan
Explore the most affordable flight options available from United Kingdom to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 June 2025.