What is the cheapest airline that flies from San Juan to London Heathrow?

JetBlue is the most popular carrier operating from San Juan to London Heathrow

When did momondo last update prices for flights from San Juan to London Heathrow Airport?

Prices for flights from San Juan to London Heathrow Airport refresh daily.

How old do you have to be to fly from San Juan to London Heathrow Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

£204 Cheap Flights from San Juan to London Heathrow Airport in 2026

Find the cheapest flights from San Juan to London

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

07:30 - 07:15-

18h 45m

06:15 - 22:19-

21h 04m

£579Virgin Atlantic

Tue, 1 Sep - Tue, 8 Sep

18:55 - 12:05-

13h 10m

09:45 - 21:27-

15h 42m

£580Iberia

Mon, 16 Nov - Fri, 20 Nov

18:30 - 20:10-

21h 40m

20:10 - 23:55-

31h 45m

£587Virgin Atlantic

Thu, 26 Nov - Thu, 3 Dec

18:55 - 12:05-

13h 10m

11:25 - 09:38-

26h 13m

£588Iberia

Mon, 16 Nov - Fri, 20 Nov

21:35 - 14:55-

13h 20m

11:25 - 20:00-

12h 35m

£589British Airways

Mon, 2 Nov - Thu, 5 Nov

13:16 - 08:50-

14h 34m

12:50 - 23:49-

15h 59m

£592Virgin Atlantic

Tue, 8 Sep - Tue, 15 Sep

07:30 - 06:45-

18h 15m

12:50 - 23:49-

15h 59m

£593Virgin Atlantic

Tue, 1 Sep - Tue, 8 Sep

08:00 - 09:30-

20h 30m

08:15 - 13:39-

34h 24m

£595JetBlue

Mon, 7 Sep - Mon, 21 Sep

18:55 - 12:05-

13h 10m

06:05 - 16:40-

14h 35m

£599Iberia

Wed, 11 Nov - Tue, 24 Nov

21:35 - 14:55-

13h 20m

10:45 - 20:00-

13h 15m

£601Iberia

Wed, 11 Nov - Tue, 24 Nov

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Virgin Atlantic flights from San Juan to London Heathrow Airport

Our best Virgin Atlantic deals on San Juan to London Heathrow Airport flight tickets

Virgin Atlantic

1 Sept

SJU07:30San Juan Luis Munoz Marin Intl

18h 45m

1 stop

LHR07:15London Heathrow

8 Sept

LHR06:15London Heathrow

21h 04m

2 stops

SJU22:19San Juan Luis Munoz Marin Intl

£579

Virgin Atlantic

26 Nov

SJU18:30San Juan Luis Munoz Marin Intl

21h 40m

1 stop

LHR20:10London Heathrow

3 Dec

LHR20:10London Heathrow

31h 45m

1 stop

SJU23:55San Juan Luis Munoz Marin Intl

£586

Virgin Atlantic

8 Sept

SJU13:16San Juan Luis Munoz Marin Intl

14h 34m

1 stop

LHR08:50London Heathrow

15 Sept

LHR12:50London Heathrow

15h 59m

1 stop

SJU23:49San Juan Luis Munoz Marin Intl

£592

Iberia flights from San Juan to London Heathrow Airport

Our best Iberia deals on San Juan to London Heathrow Airport flight tickets

Iberia

16 Nov

SJU18:55San Juan Luis Munoz Marin Intl

13h 10m

1 stop

LHR12:05London Heathrow

20 Nov

LHR09:45London Heathrow

15h 42m

1 stop

SJU21:27San Juan Luis Munoz Marin Intl

£580

Iberia

16 Nov

SJU18:55San Juan Luis Munoz Marin Intl

13h 10m

1 stop

LHR12:05London Heathrow

20 Nov

LHR11:25London Heathrow

26h 13m

2 stops

SJU09:38San Juan Luis Munoz Marin Intl

£588

Iberia

11 Nov

SJU21:35San Juan Luis Munoz Marin Intl

13h 20m

1 stop

LHR14:55London Heathrow

24 Nov

LHR10:45London Heathrow

13h 15m

1 stop

SJU20:00San Juan Luis Munoz Marin Intl

£601

momondo Fare Finder

Use the filters below to find and compare flights from San Juan to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/9

07:30-07:15

1 stop18h 45m

London Heathrow

Tue 8/9

06:15-22:19

2 stops21h 04m

£579

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:55-12:05

1 stop13h 10m

London Heathrow

Fri 20/11

09:45-21:27

1 stop15h 42m

£580

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:30-20:10

1 stop21h 40m

London Heathrow

Thu 3/12

20:10-23:55

1 stop31h 45m

£586

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

18:55-12:05

1 stop13h 10m

London Heathrow

Fri 20/11

11:25-09:38

2 stops26h 13m

£588

Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 2/11

21:35-14:55

1 stop13h 20m

London Heathrow

Thu 5/11

11:25-20:00

1 stop12h 35m

£589

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 8/9

13:16-08:50

1 stop14h 34m

London Heathrow

Tue 15/9

12:50-23:49

1 stop15h 59m

£592

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/9

07:30-06:45

1 stop18h 15m

London Heathrow

Tue 8/9

12:50-23:49

1 stop15h 59m

£593

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 7/9

08:00-09:30

1 stop20h 30m

London Heathrow

Mon 21/9

08:15-13:39

1 stop34h 24m

£595

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

18:55-12:05

1 stop13h 10m

London Heathrow

Tue 24/11

06:05-16:40

1 stop14h 35m

£599

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

21:35-14:55

1 stop13h 20m

London Heathrow

Tue 24/11

10:45-20:00

1 stop13h 15m

£601

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Juan to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between San Juan and London Heathrow Airport?

Prices are currently low for flights on this route.

Typical prices usually range from £582 to £763.
The lowest price recently found on this route was £579.

What is the cheapest month to fly to London Heathrow Airport?

In general, October is the cheapest month to fly from San Juan to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £535. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from San Juan averaging around £536.

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

You are more likely to see cheaper flights to London Heathrow Airport from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £673 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Juan for as low as £511 on momondo.

Cheap San Juan to London Heathrow Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan to London Heathrow Airport

Fastest flight time	12h 50m
Direct flights	None

The fastest flight from San Juan to London Heathrow Airport takes 12h 50m

There are no direct flights from San Juan to London Heathrow Airport. There are no popular flight routes from San Juan to London Heathrow Airport.

Search flight deals

Frequently asked questions about flying from San Juan to London Heathrow Airport

How far is San Juan to London Heathrow by plane?
London Heathrow is 4182.0 mi away from San Juan. Flights usually cover this in 12h 50m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Juan to London Heathrow Airport?
Prices for flights from San Juan to London Heathrow Airport refresh daily.
How old do you have to be to fly from San Juan to London Heathrow Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The necessary travel and health documents for your London Heathrow Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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Why use momondo?

Why should I use momondo to find a flight deal from San Juan to London?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to London from San Juan.

Can I find flights from San Juan to London with flexible booking policies on momondo?

All flight searches from San Juan to London on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Juan to London?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Juan to London.

I’m not ready to book a flight from San Juan to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of San Juan to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.