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.
Multiple Airlines Logo
15:36 - 10:00
SJU
-
LGW
37h 24m
2 stops
Multiple Airlines Logo
10:10 - 02:50
LGW
-
SJU
20h 40m
1 stop
£549Multiple Airlines
Wed, 29 Jul - Wed, 4 Nov
Multiple Airlines Logo
15:36 - 10:00
SJU
-
LGW
37h 24m
2 stops
Multiple Airlines Logo
14:00 - 01:53
LGW
-
SJU
16h 53m
1 stop
£559Multiple Airlines
Wed, 29 Jul - Thu, 15 Oct
Multiple Airlines Logo
12:49 - 10:00
SJU
-
LGW
16h 11m
1 stop
Multiple Airlines Logo
14:00 - 23:29
LGW
-
SJU
14h 29m
1 stop
£562Multiple Airlines
Mon, 10 Aug - Thu, 27 Aug
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
Multiple Airlines Logo
20:37 - 10:00
SJU
-
LGW
32h 23m
1 stop
Multiple Airlines Logo
12:35 - 02:50
LGW
-
SJU
18h 15m
1 stop
£566Multiple Airlines
Wed, 29 Jul - Fri, 6 Nov
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
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
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
KLM Logo
14:30 - 16:35
SJU
-
LCY
22h 05m
2 stops
KLM Logo
09:20 - 23:13
LCY
-
SJU
17h 53m
2 stops
£634KLM
Wed, 11 Nov - Tue, 24 Nov

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

Our best Virgin Atlantic deals on San Juan Luis Munoz Marin Intl Airport to London 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

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to London 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
American Airlines
17 Jun
SJU10:29San Juan Luis Munoz Marin Intl
19h 11m
2 stops
LGW10:40London Gatwick
29 Jun
LGW14:00London Gatwick
26h 02m
2 stops
SJU11:02San Juan Luis Munoz Marin Intl
£975

momondo Fare Finder

 
Customise your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to London 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 that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 29/7

15:36-10:00

2 stops37h 24m

London Gatwick

Wed 4/11

10:10-02:50

1 stop20h 40m

£549

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 29/7

15:36-10:00

2 stops37h 24m

London Gatwick

Thu 15/10

14:00-01:53

1 stop16h 53m

£559

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Mon 10/8

12:49-10:00

1 stop16h 11m

London Gatwick

Thu 27/8

14:00-23:29

1 stop14h 29m

£562

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 - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 29/7

20:37-10:00

1 stop32h 23m

London Gatwick

Fri 6/11

12:35-02:50

1 stop18h 15m

£566

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
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

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 - LCY

SJULCY

San Juan Luis Munoz Marin Intl

Wed 11/11

14:30-16:35

2 stops22h 05m

London City

Tue 24/11

09:20-23:13

2 stops17h 53m

£634

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

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?

What is the cheapest month to fly to London?

The cheapest month to fly to London from San Juan Luis Munoz Marin Intl Airport is in October. Flight prices, which tend to average around £75, are often lower during this time because this is during the off-season. The month of September is another great option to travel to London, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around £75.

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

You are more likely to see cheaper flights to London 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 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 from San Juan Luis Munoz Marin Intl Airport for as low as £495 on momondo.

Can stopping save me money on San Juan Luis Munoz Marin Intl Airport to London flights?

You could potentially save up to 34% on your flight if you consider stops on a San Juan Luis Munoz Marin Intl Airport to London flight.

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

As of June 2026, prices for San Juan Luis Munoz Marin Intl Airport to London flights are approximately 34% 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

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 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 (SJU to LON) 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

Fastest flight time

11h 38m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to London takes 11h 38m
There are no direct flights from San Juan Luis Munoz Marin Intl Airport to London. There are no popular flight routes from San Juan Luis Munoz Marin Intl Airport to London.

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

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

    There are 4193.3 mi between San Juan Luis Munoz Marin Intl and London. Flights usually cover this in 11h 38m, depending on flying conditions and air traffic around both airports.

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

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

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

    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.

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

    The travel and health documents you'll need for your trip to London 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. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Gatwick
Wembley
Luton
Slough
Southend-on-Sea
Maidstone
Ipswich
Ilford
Canterbury
Guildford
Folkestone
Hayes
Chelmsford
Bedford
Dover
Chichester
Harlow
Colchester

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?

Flights from San Juan to London with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to London from San Juan.

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

Yes. momondo can track prices for San Juan to London flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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1 adult
Tue 14/7
Tue 21/7

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Fly into one of these airports located in London

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