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Cheap flights from London Heathrow Airport to San Juan from £288

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 19/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
LHR — SJU
6 May — 13 May1
1 adult
Mon 6/5
Mon 13/5

The best prices from London Heathrow to San Juan are usually found in November or February, booked 42 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Heathrow to San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to San Juan (PR1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 May 2024.

Popular in

August

Cheapest in

November

Average price

£604

Round-trip from

£467
High demand for flights, 32% potential price rise
Best time to find cheap flights, 23% potential price drop
Average for round-trip flights in May 2024
From London Heathrow to San Juan

What is the cheapest day to fly round-trip from London Heathrow Airport to San Juan?

Flying to your destination on a Saturday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to San Juan. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from London Heathrow Airport to San Juan?

To save on the cost of your flight from London Heathrow Airport to San Juan, book at least 34 days before your planned departure. Booking around this time can save you about 28% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £590 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £662.

What is the cheapest month to fly from London Heathrow Airport to San Juan?

Our data shows that February tends to be the cheapest month to fly to San Juan from London Heathrow Airport. Users have commonly found prices around £651 for the month, but tickets can be as low as £414. Due to multiple factors, prepare for potentially higher prices in August.

When is the cheapest time to fly from London Heathrow Airport to San Juan (LHR - SJU)?

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to San Juan in the morning. If you’re flexible enough to do this you can expect to save up to 27% on your trip compared to booking a flight in the afternoon.

Cheap Finnair flights from Heathrow to San Juan

Explore cheap flight options specifically provided by Finnair for the route between Heathrow and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
Consider these cheap Finnair flights we've found departing from London to San Juan. Come back soon if you're not finding the exact deal you're looking for.
Sun 12/511:30LHR - SJU
1 stop12h 15mFinnair
Sun 19/518:49SJU - LHR
1 stop33h 36mFinnair
Deal found 30/4£494
Tue 10/906:15LHR - SJU
1 stop17h 05mFinnair
Thu 19/916:03SJU - LHR
1 stop12h 22mFinnair
Deal found 30/4£505
Fri 20/906:15LHR - SJU
1 stop17h 05mFinnair
Mon 30/916:03SJU - LHR
1 stop12h 22mFinnair
Deal found 1/5£532
Tue 10/909:15LHR - SJU
2 stops15h 56mFinnair
Thu 19/915:54SJU - LHR
1 stop12h 11mFinnair
Deal found 30/4£536
Fri 20/908:20LHR - SJU
2 stops16h 51mFinnair
Mon 30/915:54SJU - LHR
1 stop15h 16mFinnair
Deal found 1/5£540
Wed 29/506:15LHR - SJU
1 stop17h 30mFinnair
Wed 5/612:02SJU - LHR
1 stop16h 23mFinnair
Deal found 30/4£573
Mon 1/710:30LHR - SJU
1 stop16h 04mFinnair
Thu 18/708:00SJU - LHR
1 stop18h 30mFinnair
Deal found 30/4£584
Wed 29/506:10LHR - SJU
2 stops17h 35mFinnair
Wed 5/613:37SJU - LHR
1 stop14h 48mFinnair
Deal found 30/4£584
Wed 4/911:30LHR - SJU
1 stop11h 50mFinnair
Wed 11/912:03SJU - LHR
1 stop17h 47mFinnair
Deal found 30/4£585

Cheap JetBlue flights from Heathrow to San Juan

Explore cheap flight options specifically provided by JetBlue for the route between Heathrow and San Juan. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
Browse through some of the cheapest JetBlue flights travelling from London to San Juan. Deals frequently update to provide users with more options.
Tue 11/607:25LHR - SJU
1 stop18h 35mJetBlue
Tue 18/610:10SJU - LHR
1 stop15h 20mJetBlue
Deal found 30/4£511
Mon 16/907:25LHR - SJU
1 stop13h 52mJetBlue
Sun 29/920:00SJU - LHR
1 stop19h 45mJetBlue
Deal found 30/4£524
Tue 2/708:25LHR - SJU
1 stop20h 34mJetBlue
Mon 15/720:45SJU - LHR
1 stop19h 00mJetBlue
Deal found 30/4£540
Thu 12/907:25LHR - SJU
1 stop13h 52mJetBlue
Tue 17/920:00SJU - LHR
1 stop19h 45mJetBlue
Deal found 30/4£555
Tue 2/708:25LHR - SJU
1 stop20h 34mJetBlue
Tue 16/712:55SJU - LHR
1 stop15h 35mJetBlue
Deal found 30/4£558
Thu 4/708:25LHR - SJU
1 stop20h 34mJetBlue
Thu 18/720:45SJU - LHR
1 stop19h 00mJetBlue
Deal found 30/4£575
Tue 2/708:25LHR - SJU
1 stop16h 40mJetBlue
Thu 18/720:45SJU - LHR
1 stop19h 00mJetBlue
Deal found 30/4£578
Tue 2/708:25LHR - SJU
1 stop20h 34mJetBlue
Wed 17/709:55SJU - LHR
1 stop15h 35mJetBlue
Deal found 30/4£590
Sat 1/607:25LHR - SJU
1 stop17h 05mJetBlue
Mon 17/621:15SJU - LHR
1 stop18h 30mJetBlue
Deal found 30/4£591

Cheap Heathrow to San Juan flights in May & June 2024

Find cheap flight options from Heathrow to San Juan specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 910,695 searches. Prices were last updated on 1 May 2024.
The lowest fares we've come across on flights travelling from London to San Juan in May and June 2024. More deals are always being added, so be sure to check back regularly.
Sun 12/511:30LHR - SJU
1 stop12h 15mFinnair
Sun 19/518:49SJU - LHR
1 stop33h 36mFinnair
Deal found 30/4£494
Tue 7/509:20LHR - SJU
2 stops31h 12mMultiple Airlines
Tue 14/517:59SJU - LHR
2 stops34h 16mMultiple Airlines
Deal found 30/4£550
Wed 29/519:30LHR - SJU
2 stops35h 10mMultiple Airlines
Wed 5/604:45SJU - LHR
2 stops30h 40mMultiple Airlines
Deal found 30/4£552
Tue 7/510:30LHR - SJU
1 stop13h 32mMultiple Airlines
Tue 14/509:34SJU - LHR
2 stops24h 21mMultiple Airlines
Deal found 30/4£562
Wed 29/507:05LHR - SJU
2 stops25h 25mMultiple Airlines
Wed 5/605:40SJU - LHR
3 stops29h 45mMultiple Airlines
Deal found 30/4£569
Wed 29/506:15LHR - SJU
1 stop17h 30mFinnair
Wed 5/612:02SJU - LHR
1 stop16h 23mFinnair
Deal found 30/4£573
Wed 29/506:10LHR - SJU
2 stops17h 35mFinnair
Wed 5/613:37SJU - LHR
1 stop14h 48mFinnair
Deal found 30/4£584
Mon 13/507:25LHR - SJU
1 stop17h 05mJetBlue
Sun 19/506:02SJU - LHR
1 stop19h 28mJetBlue
Deal found 1/5£600
Tue 7/509:20LHR - SJU
1 stop19h 47mMultiple Airlines
Mon 13/501:30SJU - LHR
2 stops26h 45mMultiple Airlines
Deal found 30/4£608

Heathrow to San Juan 2024 flight deals

Discover exclusive flight deals for travel between Heathrow and San Juan in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
The lowest fares we've come across on flights travelling from London to San Juan in May and June 2024. More deals are always being added, so be sure to check back regularly.
Wed 27/1111:45LHR - SJU
1 stop28h 19mFinnair
Wed 4/1214:42SJU - LHR
1 stop12h 08mFinnair
Deal found 30/4£491
Sun 12/511:30LHR - SJU
1 stop12h 15mFinnair
Sun 19/518:49SJU - LHR
1 stop33h 36mFinnair
Deal found 30/4£494
Tue 10/906:15LHR - SJU
1 stop17h 05mFinnair
Thu 19/916:03SJU - LHR
1 stop12h 22mFinnair
Deal found 30/4£505
Tue 11/607:25LHR - SJU
1 stop18h 35mJetBlue
Tue 18/610:10SJU - LHR
1 stop15h 20mJetBlue
Deal found 30/4£511
Mon 25/1114:10LHR - SJU
1 stop29h 24mFinnair
Sat 30/1107:29SJU - LHR
1 stop22h 11mFinnair
Deal found 30/4£518
Mon 25/1108:25LHR - SJU
1 stop19h 53mJetBlue
Wed 4/1213:24SJU - LHR
1 stop12h 31mJetBlue
Deal found 1/5£524
Mon 16/907:25LHR - SJU
1 stop13h 52mJetBlue
Sun 29/920:00SJU - LHR
1 stop19h 45mJetBlue
Deal found 1/5£528
Fri 20/906:15LHR - SJU
1 stop17h 05mFinnair
Mon 30/916:03SJU - LHR
1 stop12h 22mFinnair
Deal found 1/5£532
Tue 10/909:15LHR - SJU
2 stops15h 56mFinnair
Thu 19/915:54SJU - LHR
1 stop12h 11mFinnair
Deal found 30/4£536

Heathrow to San Juan flights leaving soon

Find last-minute flight options from Heathrow to San Juan for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
Consider one of these great deals we found on last-minute flights from London to San Juan. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Tue 7/509:20LHR - SJU
2 stops31h 12mMultiple Airlines
Tue 14/517:59SJU - LHR
2 stops34h 16mMultiple Airlines
Deal found 30/4£550
Tue 7/510:30LHR - SJU
1 stop13h 32mMultiple Airlines
Tue 14/509:34SJU - LHR
2 stops24h 21mMultiple Airlines
Deal found 30/4£562
Tue 7/509:20LHR - SJU
1 stop19h 47mMultiple Airlines
Mon 13/501:30SJU - LHR
2 stops26h 45mMultiple Airlines
Deal found 30/4£608
Tue 7/509:20LHR - SJU
1 stop19h 47mMultiple Airlines
Mon 13/503:30SJU - LHR
1 stop24h 45mMultiple Airlines
Deal found 30/4£616
Tue 7/508:00LHR - SJU
2 stops21h 07mMultiple Airlines
Mon 13/503:30SJU - LHR
2 stops26h 10mMultiple Airlines
Deal found 30/4£636
Mon 6/507:25LHR - SJU
1 stop13h 30mJetBlue
Sat 1/607:49SJU - LHR
1 stop20h 41mJetBlue
Deal found 1/5£762
Tue 7/506:50LHR - SJU
2 stops22h 07mUnited Airlines
Mon 13/501:05SJU - LHR
2 stops24h 40mUnited Airlines
Deal found 30/4£768
Tue 7/513:10LHR - SJU
3 stops27h 22mMultiple Airlines
Tue 14/519:57SJU - LHR
3 stops32h 28mMultiple Airlines
Deal found 30/4£843
Tue 7/508:00LHR - SJU
2 stops21h 49mMultiple Airlines
Tue 14/521:07SJU - LHR
3 stops31h 18mMultiple Airlines
Deal found 30/4£921

One-way flights to San Juan from Heathrow

Search for one-way flight options from Heathrow to San Juan. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
If you're seeking multiple options on one-way flights from London to San Juan, be sure to check out these deals, which are updated often. Users in need of a round-trip flight from London to San Juan instead should update the search form at the top of page.
Sun 19/519:30LHR - SJU
2 stops42h 14mMultiple Airlines
Deal found 29/4£288
Tue 4/621:25LHR - SJU
2 stops33h 23mMultiple Airlines
Deal found 30/4£350
Sun 19/514:20LHR - SJU
3 stops33h 19mMultiple Airlines
Deal found 29/4£377
Tue 4/622:25LHR - SJU
3 stops41h 47mMultiple Airlines
Deal found 30/4£538
Sun 19/522:05LHR - SJU
1 stop23h 35mAvianca
Deal found 29/4£562
Tue 4/608:25LHR - SJU
1 stop20h 25mJetBlue
Deal found 30/4£574
Sat 27/707:40LHR - SJU
3 stops23h 29mMultiple Airlines
Deal found 30/4£751
Sat 27/708:25LHR - SJU
1 stop15h 20mJetBlue
Deal found 30/4£787
Sat 27/719:50LHR - SJU
2 stops44h 36mTAP AIR PORTUGAL
Deal found 30/4£907

Find flights from Heathrow to San Juan within your budget

Customise your flight search to find flights from Heathrow to San Juan that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£494 - £854

Route

Depart

Return

Price

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Sun 12/5

1 stop12h 15m

San Juan Luis Munoz Marin Intl

Sun 19/5

1 stop33h 36m

£494

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Tue 11/6

1 stop18h 35m

San Juan Luis Munoz Marin Intl

Tue 18/6

1 stop15h 20m

£511

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Wed 29/5

2 stops35h 10m

San Juan Luis Munoz Marin Intl

Wed 5/6

2 stops30h 40m

£552

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Tue 10/9

2 stops29h 55m

San Juan Luis Munoz Marin Intl

Thu 19/9

2 stops27h 10m

£662

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Sun 9/6

1 stop17h 30m

San Juan Luis Munoz Marin Intl

Thu 13/6

1 stop14h 06m

£745

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Mon 16/9

2 stops18h 43m

San Juan Luis Munoz Marin Intl

Sun 29/9

1 stop21h 10m

£798

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Fri 20/9

2 stops20h 27m

San Juan Luis Munoz Marin Intl

Sun 29/9

1 stop14h 35m

£806

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Mon 13/5

1 stop12h 15m

San Juan Luis Munoz Marin Intl

Sat 18/5

1 stop26h 20m

£825

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Thu 12/9

1 stop15h 57m

San Juan Luis Munoz Marin Intl

Mon 16/9

1 stop14h 35m

£854

Flights are sorted by cheapest first

Deals found on 30/4

When is the best time to book a flight from London Heathrow Airport to San Juan?

Use this chart to determine the optimal time to book a return flight from Heathrow to San Juan. Price data was last updated on 28 January 2024.
The best time to book flights from London Heathrow Airport to San Juan is 42 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

When is the cheapest time to fly from London Heathrow Airport to San Juan?

Use this chart to determine the cheapest time to fly return from Heathrow to San Juan. Price data was last updated on 28 April 2024.
Morning
Midday
Afternoon
Evening
All times are departure.
Travellers seeking maximum savings on their London Heathrow Airport to San Juan flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to San Juan by month

Plan your trip from Heathrow to San Juan by taking into account the cheapest months to travel. The average price of a one-way flight from Heathrow to San Juan is currently £571 while a return flight costs £694. Price data was last updated on 28 April 2024.

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to San Juan (average of £585). Flying from London Heathrow Airport to San Juan in July is currently the most expensive (average of £870). 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.

January

£494

February

£522

March

£467

April

£504

May

£582

June

£672

July

£695

August

£690

September

£598

October

£544

November

£543

December

£598

Temperature and rainfall in San Juan by month

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

SJU

Temperature

25 - 28 °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 1 May 2024.
Peruse reviews from past customers who have flown with Finnair, JetBlue and United Airlines from London to San Juan to help guide your decision. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

8.1
Very Good
10,874 reviews
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.8
Good
1,379 reviews
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.6
Good
4,561 reviews
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.5
Good
3,883 reviews
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

7.4
Good
11,159 reviews
8.1
Very Good
10,874 reviews

Comfort

7.9

Food

7.4

Boarding

8.2

Crew

8.6

Entertainment

8.0

Overall

8.1

Reviews

1 / 10

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • Can I find flights from London Heathrow Airport to San Juan for under £500 on Cheapflights?

    Yes, there are multiple flights from London Heathrow Airport to San Juan for under £500. The cheapest flight booked recently is on Finnair for just £494, but on average you can expect to pay £553.

  • Are there last-minute flights available from London Heathrow Airport to San Juan for under £600?

    There are currently 15+ open flights from London Heathrow Airport to San Juan within the next 7 days for less than £600.

  • What are the cheapest airlines flying from London Heathrow Airport to San Juan round-trip?

    Our cheapest airline available from London Heathrow Airport to San Juan is Finnair. Our recent data shows that you can find tickets from as low as £494 on this airline. An additional option worth looking into is JetBlue, starting at £511. Finnair is currently priced 24% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from London Heathrow Airport to San Juan one-way?

    The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as £562. However, be on the lookout for offers from JetBlue and TAP AIR PORTUGAL, as they are both options that can get you from London Heathrow Airport to San Juan for a low price.

  • What are the most popular airlines that fly from London Heathrow Airport to San Juan?

  • What does LHR to SJU mean?

    LHR and SJU are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. LHR to SJU refers to a flight route from London Heathrow Airport to San Juan Luis Munoz Marin Intl Airport. Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR) are some additional IATA codes for airports related to your trip.

  • Can I find deals for flights from Heathrow to San Juan that include extra baggage allowance?

    The amount of baggage you can bring on your Heathrow to San Juan flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Heathrow to San Juan with specific airlines?

    Yes, Cheapflights allows you to browse and filter Heathrow to San Juan flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Heathrow to San Juan that include hotel bookings?

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

  • How can I find direct flights from Heathrow to San Juan?

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

  • Can I find deals for business class flights from Heathrow to San Juan?

    Yes. Cheapflights offers flight deals from Heathrow 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.

  • Can I find deals for flights from Heathrow to San Juan that allow pets onboard?

    Many airlines flying from Heathrow to San Juan offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Heathrow to San Juan?

    Yes, you can often find last-minute deals on Heathrow to San Juan flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the London Heathrow Airport to San Juan flight deals updated?

    The London Heathrow Airport to San Juan flight deals you see on this page were last updated on 1/5.

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.

Top 6 airlines flying from Heathrow to San Juan

Discover the top 6 airlines that operate flights from Heathrow to San Juan. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 910,695 searches. Data last updated 1 May 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£418Average£870FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£420Average£626FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£469Average£571FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£481Average£871FlexibilityNo cancel feeOn-time77%
Search Iberia flights
United AirlinesCheapest£534Average£833FlexibilityNo cancel feeOn-time69%
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British AirwaysCheapest£643Average£873FlexibilityNo cancel feeOn-time70%
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Search flights from Heathrow to San Juan by cabin class

Find flights from Heathrow to San Juan, based on your preferred cabin class, be it economy, premium economy, business, or first class.

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

Cheapflights helps you search for flights from Heathrow to San Juan via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights simply makes it quick and affordable to book flights from Heathrow to San Juan by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Users can book flights with no change fees policies with our dedicated filters. Book flights from Heathrow to San Juan flexibly with Cheapflights today.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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