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Cheap flights from London Heathrow Airport to San Juan from £435

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 21/10. 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
20 Jul — 27 Jul1
1 adult
Sat 20/7
Sat 27/7

The best prices from London Heathrow to San Juan are usually found in April or September, booked 58 days in advance, depart on a Monday or Tuesday 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 15 July 2024.

Round-trip from

£494

One-way from

£435

Popular in

July

Cheapest in

April
JetBlue
  • JetBlue
  • 5/11-20/11
  • 2 total stops
  • 34h 39m total
  • London to San Juan
21/10
  • 21/10
  • 3 total stops
  • 25h 00m total
  • London to San Juan
High demand for flights, 28% potential price rise
Best time to find cheap flights, 21% potential price drop

Cheap TAP AIR PORTUGAL flights from Heathrow to San Juan

Explore cheap flight options specifically provided by TAP AIR PORTUGAL 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 1,009,702 searches. Data last updated 15 July 2024.
Consider these cheap TAP AIR PORTUGAL 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.
Tue 12/1108:15LHR - SJU
2 stops29h 36mTAP AIR PORTUGAL
Sun 17/1108:00SJU - LHR
2 stops33h 35mTAP AIR PORTUGAL
Deal found 15/7£585
Tue 12/1108:15LHR - SJU
2 stops29h 36mTAP AIR PORTUGAL
Sun 17/1108:00SJU - LHR
2 stops29h 30mTAP AIR PORTUGAL
Deal found 14/7£588
Tue 5/1108:15LHR - SJU
2 stops29h 36mTAP AIR PORTUGAL
Wed 20/1103:24SJU - LHR
2 stops34h 06mTAP AIR PORTUGAL
Deal found 14/7£615
Fri 15/1108:25LHR - SJU
1 stop19h 53mTAP AIR PORTUGAL
Sat 23/1103:24SJU - LHR
1 stop22h 31mTAP AIR PORTUGAL
Deal found 15/7£621
Thu 12/908:00LHR - SJU
2 stops32h 28mTAP AIR PORTUGAL
Thu 26/910:52SJU - LHR
2 stops25h 53mTAP AIR PORTUGAL
Deal found 14/7£625
Tue 12/1106:00LHR - SJU
2 stops31h 51mTAP AIR PORTUGAL
Sat 16/1103:24SJU - LHR
2 stops34h 06mTAP AIR PORTUGAL
Deal found 15/7£635
Sat 11/112:25LHR - SJU
2 stops18h 40mTAP AIR PORTUGAL
Sat 25/105:01SJU - LHR
2 stops26h 24mTAP AIR PORTUGAL
Deal found 14/7£638
Tue 23/706:00LHR - SJU
2 stops20h 38mTAP AIR PORTUGAL
Sat 24/813:55SJU - LHR
2 stops23h 55mTAP AIR PORTUGAL
Deal found 15/7£1,472

Cheap United Airlines flights from Heathrow to San Juan

Explore cheap flight options specifically provided by United Airlines 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 1,009,702 searches. Data last updated 15 July 2024.
Browse through some of the cheapest United Airlines flights travelling from London to San Juan. Deals frequently update to provide users with more options.
Thu 12/906:50LHR - SJU
2 stops22h 07mUnited Airlines
Wed 25/901:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 14/7£914
Fri 20/913:30LHR - SJU
2 stops28h 20mUnited Airlines
Sun 29/901:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 14/7£915
Thu 12/913:00LHR - SJU
1 stop15h 57mUnited Airlines
Wed 25/901:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 14/7£922
Tue 23/716:40LHR - SJU
1 stop24h 49mUnited Airlines
Fri 23/801:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 15/7£1,752

Cheap Heathrow to San Juan flights in July & August 2024

Find cheap flight options from Heathrow to San Juan specifically for the months of July and August 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 1,009,702 searches. Prices were last updated on 15 July 2024.
The lowest fares we've come across on flights travelling from London to San Juan in July and August 2024. More deals are always being added, so be sure to check back regularly.
Fri 23/807:25LHR - SJU
1 stop15h 34mJetBlue
Fri 13/910:52SJU - LHR
1 stop14h 38mJetBlue
Deal found 15/7£634
Thu 22/811:30LHR - SJU
1 stop11h 50mFinnair
Mon 2/917:35SJU - LHR
1 stop34h 30mFinnair
Deal found 14/7£681
Thu 22/808:10LHR - SJU
2 stops18h 10mFinnair
Mon 2/915:50SJU - LHR
1 stop34h 40mFinnair
Deal found 14/7£686
Wed 21/806:45LHR - SJU
3 stops32h 11mMultiple Airlines
Tue 27/820:02SJU - LHR
3 stops32h 03mMultiple Airlines
Deal found 15/7£765
Wed 21/806:30LHR - SJU
2 stops21h 29mMultiple Airlines
Tue 27/805:10SJU - LHR
2 stops22h 30mMultiple Airlines
Deal found 15/7£806
Wed 14/813:45LHR - SJU
3 stops34h 29mMultiple Airlines
Wed 21/806:00SJU - LHR
3 stops35h 00mMultiple Airlines
Deal found 15/7£813
Wed 14/806:30LHR - SJU
2 stops24h 26mMultiple Airlines
Tue 20/805:10SJU - LHR
2 stops21h 30mMultiple Airlines
Deal found 15/7£816
Wed 7/809:50LHR - SJU
2 stops22h 19mMultiple Airlines
Wed 14/806:00SJU - LHR
3 stops35h 40mMultiple Airlines
Deal found 15/7£818
Wed 14/806:45LHR - SJU
3 stops25h 07mMultiple Airlines
Tue 20/801:47SJU - LHR
3 stops26h 18mMultiple Airlines
Deal found 15/7£822

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 1,009,702 searches. Data last updated 15 July 2024.
The lowest fares we've come across on flights travelling from London to San Juan in July and August 2024. More deals are always being added, so be sure to check back regularly.
Tue 5/1108:25LHR - SJU
1 stop19h 53mJetBlue
Wed 20/1101:59SJU - LHR
1 stop14h 46mJetBlue
Deal found 14/7£494
Wed 13/1112:20LHR - SJU
1 stop16h 59mJetBlue
Mon 25/1101:59SJU - LHR
1 stop14h 46mJetBlue
Deal found 15/7£511
Thu 12/907:25LHR - SJU
1 stop16h 04mJetBlue
Thu 26/913:31SJU - LHR
1 stop14h 59mJetBlue
Deal found 15/7£524
Tue 5/1108:20LHR - SJU
2 stops16h 44mFinnair
Thu 21/1109:43SJU - LHR
1 stop17h 07mFinnair
Deal found 14/7£537
Tue 12/1108:20LHR - SJU
2 stops16h 44mFinnair
Sun 17/1116:52SJU - LHR
1 stop33h 58mFinnair
Deal found 14/7£538
Tue 12/1119:50LHR - SJU
2 stops21h 55mFinnair
Sun 17/1116:52SJU - LHR
1 stop33h 58mFinnair
Deal found 15/7£540
Fri 20/908:25LHR - SJU
1 stop15h 13mJetBlue
Mon 30/913:31SJU - LHR
1 stop14h 59mJetBlue
Deal found 15/7£541
Wed 27/1112:20LHR - SJU
1 stop16h 59mJetBlue
Tue 3/1204:10SJU - LHR
1 stop12h 35mJetBlue
Deal found 15/7£544
Mon 16/908:25LHR - SJU
1 stop15h 13mJetBlue
Sun 29/910:52SJU - LHR
1 stop14h 38mJetBlue
Deal found 15/7£554

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 1,009,702 searches. Data last updated 15 July 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 23/713:00LHR - SJU
1 stop26h 59mFinnair
Sat 24/813:38SJU - LHR
1 stop14h 27mFinnair
Deal found 15/7£1,173
Tue 23/709:15LHR - SJU
2 stops17h 26mFinnair
Sat 24/820:20SJU - LHR
1 stop15h 00mFinnair
Deal found 15/7£1,427
Tue 23/706:00LHR - SJU
2 stops20h 38mTAP AIR PORTUGAL
Sat 24/813:55SJU - LHR
2 stops23h 55mTAP AIR PORTUGAL
Deal found 15/7£1,472
Tue 23/721:25LHR - SJU
2 stops26h 36mIcelandair
Sat 24/806:00SJU - LHR
2 stops24h 55mIcelandair
Deal found 15/7£1,744
Tue 23/716:40LHR - SJU
1 stop24h 49mUnited Airlines
Fri 23/801:05SJU - LHR
1 stop14h 35mUnited Airlines
Deal found 15/7£1,752
Tue 23/716:00LHR - SJU
2 stops25h 29mLufthansa
Fri 23/801:05SJU - LHR
2 stops27h 35mLufthansa
Deal found 15/7£1,790
Tue 23/709:30LHR - SJU
2 stops19h 27mAir Canada
Fri 23/801:05SJU - LHR
2 stops24h 30mAir Canada
Deal found 15/7£1,852

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 1,009,702 searches. Data last updated 15 July 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.
Mon 21/1006:50LHR - SJU
3 stops25h 00mMultiple Airlines
Deal found 14/7£435
Sun 18/821:25LHR - SJU
3 stops41h 31mMultiple Airlines
Deal found 15/7£493
Mon 5/820:30LHR - SJU
3 stops36h 06mMultiple Airlines
Deal found 15/7£502
Wed 13/1119:40LHR - SJU
1 stop28h 05mIberia
Deal found 15/7£504
Wed 7/821:25LHR - SJU
2 stops34h 44mMultiple Airlines
Deal found 15/7£514
Mon 21/1006:45LHR - SJU
2 stops16h 35mMultiple Airlines
Deal found 14/7£521
Fri 15/1110:05LHR - SJU
1 stop13h 40mIberia
Deal found 15/7£524
Wed 7/806:45LHR - SJU
3 stops25h 24mMultiple Airlines
Deal found 15/7£524
Fri 15/1120:40LHR - SJU
2 stops31h 38mIcelandair
Deal found 15/7£534

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 1,009,702 searches. Data last updated 15 July 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£494 - £913

Route

Depart

Return

Price

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Tue 5/11

1 stop19h 53m

San Juan Luis Munoz Marin Intl

Wed 20/11

1 stop14h 46m

£494

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Tue 5/11

2 stops16h 44m

San Juan Luis Munoz Marin Intl

Thu 21/11

1 stop17h 07m

£537

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Tue 12/11

2 stops29h 36m

San Juan Luis Munoz Marin Intl

Sun 17/11

2 stops33h 35m

£585

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Sun 15/9

3 stops36h 36m

San Juan Luis Munoz Marin Intl

Sat 28/9

3 stops33h 10m

£600

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Mon 14/10

2 stops26h 13m

San Juan Luis Munoz Marin Intl

Fri 18/10

2 stops28h 28m

£690

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Wed 13/11

2 stops19h 06m

San Juan Luis Munoz Marin Intl

Mon 25/11

2 stops20h 10m

£892

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Mon 16/9

2 stops19h 27m

San Juan Luis Munoz Marin Intl

Sat 28/9

2 stops38h 55m

£898

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Wed 13/11

1 stop16h 03m

San Juan Luis Munoz Marin Intl

Tue 26/11

1 stop12h 42m

£909

London HeathrowSan Juan Luis Munoz Marin Intl

LHR - SJU

LHRSJU

London Heathrow

Mon 16/9

2 stops24h 15m

San Juan Luis Munoz Marin Intl

Sun 29/9

1 stop21h 21m

£913

Flights are sorted by cheapest first

Deals found on 14/7

Best time to book a flight from Heathrow to San Juan

Have a flexible travel schedule? Discover the best time to fly to San Juan from Heathrow 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.

Travel insights for flights from Heathrow to San Juan

Get recent, data-driven insights about flights from Heathrow to San Juan including ideal travel times, pricing trends, and more.

How far ahead should I 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 12 July 2024.

The best time to book flights from London Heathrow Airport to San Juan is 58 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.

What is the cheapest month to book a flight from London Heathrow Airport to San Juan?

Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Juan (average of £423). Flying from London Heathrow Airport to San Juan in July is currently the most expensive (average of £561). 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 LHR to SJU?

Find hourly flight availability from Heathrow 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 15 July 2024.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to San Juan in the afternoon. If you’re flexible enough to do this you can expect to save up to 44% on your trip compared to booking a flight at midday.

What is the cheapest day 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 14 July 2024.

Travellers seeking maximum savings on their London Heathrow Airport to San Juan flight should consider departing on Monday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 2024.
Peruse reviews from past customers who have flown with TAP AIR PORTUGAL, United Airlines and Finnair 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.
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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.

8.0
Very Good
9,797 reviews
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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.

7.7
Good
1,334 reviews
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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
4,064 reviews
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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
10,000 reviews
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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
3,380 reviews
8.0
Very Good
9,797 reviews

Entertainment

8.0

Overall

8.0

Boarding

8.2

Crew

8.6

Comfort

7.9

Food

7.4

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 JetBlue for just £494, but on average you can expect to pay £557.

  • Are there last-minute flights available from London Heathrow Airport to San Juan for under £1,200?

    There are currently 7+ open flights from London Heathrow Airport to San Juan within the next 7 days for less than £1,200.

  • 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 JetBlue. Our recent data shows that you can find tickets from as low as £494 on this airline. Additional options worth looking into are Finnair and TAP AIR PORTUGAL, starting at £537 and £585 round-trip. JetBlue is currently priced 20% 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 Iberia, with whom users have recently found tickets for as low as £504. However, be on the lookout for offers from Icelandair and Avianca, as they are both options that can get you from London Heathrow Airport to San Juan for a low price.

  • 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 15/7.

  • What is the cheapest month to book a flight from London Heathrow Airport to San Juan?

    Currently, February is the cheapest month in which you can book a flight from London Heathrow Airport to San Juan (average of £423). Flying from London Heathrow Airport to San Juan in July is currently the most expensive (average of £561). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 8 airlines flying from Heathrow to San Juan

Discover the top 8 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 1,009,702 searches. Data last updated 15 July 2024.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£402Average£833FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
JetBlueCheapest£409Average£630FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
FinnairCheapest£436Average£542FlexibilityNo cancel feeOn-time76%
Search Finnair flights
IberiaCheapest£463Average£803FlexibilityNo cancel feeOn-time77%
Search Iberia flights
IcelandairCheapest£485Average£690FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
United AirlinesCheapest£515Average£869FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£519Average£819FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£617Average£838FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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.

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 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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