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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £201

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to London departing on 21/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Iberia Logo
14:41 - 08:15
SJU
-
LHR
13h 34m
1 stop
Iberia Logo
06:15 - 20:00
LHR
-
SJU
17h 45m
1 stop
£563Iberia
Thu, 26 Nov - Thu, 3 Dec
Virgin Atlantic Logo
15:35 - 11:40
SJU
-
LHR
16h 05m
1 stop
Virgin Atlantic Logo
10:10 - 23:55
LHR
-
SJU
17h 45m
1 stop
£574Virgin Atlantic
Mon, 16 Nov - Fri, 20 Nov
Virgin Atlantic Logo
18:35 - 11:40
SJU
-
LHR
13h 05m
1 stop
Virgin Atlantic Logo
19:20 - 23:20
LHR
-
SJU
32h 00m
2 stops
£576Virgin Atlantic
Thu, 26 Nov - Thu, 3 Dec
Virgin Atlantic Logo
14:05 - 06:20
SJU
-
LHR
12h 15m
1 stop
Virgin Atlantic Logo
19:20 - 23:20
LHR
-
SJU
32h 00m
2 stops
£578Virgin Atlantic
Thu, 26 Nov - Thu, 3 Dec
Virgin Atlantic Logo
14:05 - 08:05
SJU
-
LHR
14h 00m
1 stop
Virgin Atlantic Logo
12:30 - 23:20
LHR
-
SJU
14h 50m
1 stop
£584Virgin Atlantic
Thu, 26 Nov - Thu, 3 Dec
Virgin Atlantic Logo
13:16 - 06:45
SJU
-
LHR
12h 29m
1 stop
Virgin Atlantic Logo
08:20 - 23:44
LHR
-
SJU
20h 24m
1 stop
£594Virgin Atlantic
Tue, 8 Sep - Tue, 15 Sep
Iberia Logo
14:58 - 09:00
SJU
-
LHR
13h 02m
1 stop
Iberia Logo
11:30 - 18:30
LHR
-
SJU
12h 00m
1 stop
£602Iberia
Tue, 22 Sep - Tue, 29 Sep
Iberia Logo
18:10 - 14:55
SJU
-
LHR
16h 45m
1 stop
Iberia Logo
06:05 - 16:40
LHR
-
SJU
14h 35m
1 stop
£604Iberia
Wed, 11 Nov - Tue, 24 Nov
American Airlines Logo
16:06 - 12:10
SJU
-
LHR
15h 04m
1 stop
American Airlines Logo
06:15 - 18:50
LHR
-
SJU
17h 35m
1 stop
£608American Airlines
Sun, 20 Sep - Fri, 25 Sep
Iberia Logo
11:51 - 09:00
SJU
-
LHR
16h 09m
1 stop
Iberia Logo
11:30 - 09:24
LHR
-
SJU
26h 54m
2 stops
£609Iberia
Sun, 20 Sep - Fri, 25 Sep

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Virgin Atlantic flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

Our best Virgin Atlantic deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight tickets
Virgin Atlantic
16 Nov
SJU15:35San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR11:40London Heathrow
20 Nov
LHR10:10London Heathrow
17h 45m
1 stop
SJU23:55San Juan Luis Munoz Marin Intl
£574
Virgin Atlantic
26 Nov
SJU18:35San Juan Luis Munoz Marin Intl
13h 05m
1 stop
LHR11:40London Heathrow
3 Dec
LHR19:20London Heathrow
32h 00m
2 stops
SJU23:20San Juan Luis Munoz Marin Intl
£576
Virgin Atlantic
26 Nov
SJU14:05San Juan Luis Munoz Marin Intl
12h 15m
1 stop
LHR06:20London Heathrow
3 Dec
LHR19:20London Heathrow
32h 00m
2 stops
SJU23:20San Juan Luis Munoz Marin Intl
£578

American Airlines flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight tickets
American Airlines
20 Sept
SJU16:06San Juan Luis Munoz Marin Intl
15h 04m
1 stop
LHR12:10London Heathrow
25 Sept
LHR06:15London Heathrow
17h 35m
1 stop
SJU18:50San Juan Luis Munoz Marin Intl
£608
American Airlines
15 Jun
SJU13:47San Juan Luis Munoz Marin Intl
15h 33m
1 stop
LHR10:20London Heathrow
28 Jun
LHR11:30London Heathrow
12h 30m
1 stop
SJU19:00San Juan Luis Munoz Marin Intl
£816

momondo Fare Finder

 
Customise your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 14 June 2026.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport 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

Thu 26/11

14:41-08:15

1 stop13h 34m

London Heathrow

Thu 3/12

06:15-20:00

1 stop17h 45m

£563

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 16/11

15:35-11:40

1 stop16h 05m

London Heathrow

Fri 20/11

10:10-23:55

1 stop17h 45m

£574

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

18:35-11:40

1 stop13h 05m

London Heathrow

Thu 3/12

19:20-23:20

2 stops32h 00m

£576

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

14:05-06:20

1 stop12h 15m

London Heathrow

Thu 3/12

19:20-23:20

2 stops32h 00m

£578

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

14:05-08:05

1 stop14h 00m

London Heathrow

Thu 3/12

12:30-23:20

1 stop14h 50m

£584

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 8/9

13:16-06:45

1 stop12h 29m

London Heathrow

Tue 15/9

08:20-23:44

1 stop20h 24m

£594
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/9

14:58-09:00

1 stop13h 02m

London Heathrow

Tue 29/9

11:30-18:30

1 stop12h 00m

£602

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/11

18:10-14:55

1 stop16h 45m

London Heathrow

Tue 24/11

06:05-16:40

1 stop14h 35m

£604

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 20/9

16:06-12:10

1 stop15h 04m

London Heathrow

Fri 25/9

06:15-18:50

1 stop17h 35m

£608

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 20/9

11:51-09:00

1 stop16h 09m

London Heathrow

Fri 25/9

11:30-09:24

2 stops26h 54m

£609

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport 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

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

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

In general, September is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £461. The month of October is another great option to travel to London Heathrow Airport, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around £535.

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

You are more likely to see cheaper flights to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £634 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 Luis Munoz Marin Intl Airport for as low as £495 on momondo.

How have San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight prices changed over time?

As of June 2026, prices for San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport (SJU to LHR) flight deals and tips

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

Fastest flight time

12h 15m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport takes 12h 15m
There are no direct flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. There are no popular flight routes from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport.
Search flight deals

Frequently asked questions about flying from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

  • How far is San Juan Luis Munoz Marin Intl to London Heathrow by plane?

    A flight from San Juan Luis Munoz Marin Intl to London Heathrow will travel around 4178.9 mi. By plane, this route typically takes 12h 15m.

  • When did momondo last update prices for flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

    Prices for flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport were last updated today.

  • How old do you have to be to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport.

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

    The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek 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?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Juan to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from San Juan with this policy.

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

momondo helps you find the best flight between San Juan and London by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to London from San Juan. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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