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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £199

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 5/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Virgin Atlantic Logo
07:00 - 06:20
SJU
-
LHR
18h 20m
1 stop
Virgin Atlantic Logo
06:20 - 21:59
LHR
-
SJU
19h 39m
2 stops
£485Virgin Atlantic
Fri, 16 Oct - Sat, 31 Oct
Virgin Atlantic Logo
13:06 - 06:45
SJU
-
LHR
12h 39m
1 stop
Virgin Atlantic Logo
08:55 - 21:59
LHR
-
SJU
17h 04m
1 stop
£490Virgin Atlantic
Fri, 16 Oct - Sat, 31 Oct
Virgin Atlantic Logo
13:06 - 10:20
SJU
-
LHR
16h 14m
1 stop
Virgin Atlantic Logo
08:55 - 21:59
LHR
-
SJU
17h 04m
1 stop
£490Virgin Atlantic
Fri, 16 Oct - Sat, 31 Oct
United Airlines Logo
13:25 - 07:15
SJU
-
LHR
12h 50m
1 stop
United Airlines Logo
06:50 - 23:50
LHR
-
SJU
22h 00m
2 stops
£512United Airlines
Sun, 20 Sep - Tue, 22 Sep
United Airlines Logo
01:00 - 06:55
SJU
-
LHR
24h 55m
2 stops
United Airlines Logo
06:50 - 23:50
LHR
-
SJU
22h 00m
2 stops
£515United Airlines
Sat, 19 Sep - Tue, 22 Sep
United Airlines Logo
07:00 - 07:55
SJU
-
LHR
19h 55m
1 stop
United Airlines Logo
07:30 - 23:50
LHR
-
SJU
21h 20m
2 stops
£521United Airlines
Tue, 22 Sep - Thu, 24 Sep
KLM Logo
14:31 - 11:20
SJU
-
LHR
15h 49m
1 stop
KLM Logo
08:55 - 21:59
LHR
-
SJU
17h 04m
1 stop
£526KLM
Fri, 16 Oct - Sat, 31 Oct
Delta Logo
14:26 - 13:15
SJU
-
LHR
17h 49m
1 stop
Delta Logo
06:15 - 23:44
LHR
-
SJU
22h 29m
2 stops
£528Delta
Thu, 24 Sep - Mon, 28 Sep
Air France Logo
07:00 - 09:25
SJU
-
LGW
21h 25m
2 stops
Air France Logo
17:00 - 21:59
LGW
-
SJU
33h 59m
2 stops
£552Air France
Wed, 14 Oct - Tue, 20 Oct
KLM Logo
13:06 - 17:20
SJU
-
LCY
23h 14m
2 stops
KLM Logo
10:00 - 11:56
LCY
-
SJU
30h 56m
2 stops
£593KLM
Mon, 24 Aug - Mon, 31 Aug

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

Our best United Airlines deals on San Juan Luis Munoz Marin Intl Airport to London flight tickets
United Airlines
20 Sept
SJU13:25San Juan Luis Munoz Marin Intl
12h 50m
1 stop
LHR07:15London Heathrow
22 Sept
LHR06:50London Heathrow
22h 00m
2 stops
SJU23:50San Juan Luis Munoz Marin Intl
£512
United Airlines
19 Sept
SJU01:00San Juan Luis Munoz Marin Intl
24h 55m
2 stops
LHR06:55London Heathrow
22 Sept
LHR06:50London Heathrow
22h 00m
2 stops
SJU23:50San Juan Luis Munoz Marin Intl
£515
United Airlines
22 Sept
SJU07:00San Juan Luis Munoz Marin Intl
19h 55m
1 stop
LHR07:55London Heathrow
24 Sept
LHR07:30London Heathrow
21h 20m
2 stops
SJU23:50San Juan Luis Munoz Marin Intl
£521

KLM flights from San Juan Luis Munoz Marin Intl Airport to London

Our best KLM deals on San Juan Luis Munoz Marin Intl Airport to London flight tickets
KLM
16 Oct
SJU14:31San Juan Luis Munoz Marin Intl
15h 49m
1 stop
LHR11:20London Heathrow
31 Oct
LHR08:55London Heathrow
17h 04m
1 stop
SJU21:59San Juan Luis Munoz Marin Intl
£526
KLM
9 Oct
SJU13:06San Juan Luis Munoz Marin Intl
14h 44m
1 stop
LHR08:50London Heathrow
20 Oct
LHR08:20London Heathrow
20h 36m
1 stop
SJU23:56San Juan Luis Munoz Marin Intl
£532
KLM
6 Sept
SJU13:35San Juan Luis Munoz Marin Intl
15h 45m
1 stop
LHR10:20London Heathrow
23 Sept
LHR12:50London Heathrow
15h 54m
1 stop
SJU23:44San Juan Luis Munoz Marin Intl
£533

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 28 April 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 - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 16/10

07:00-06:20

1 stop18h 20m

London Heathrow

Sat 31/10

06:20-21:59

2 stops19h 39m

£485
Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 16/10

13:06-06:45

1 stop12h 39m

London Heathrow

Sat 31/10

08:55-21:59

1 stop17h 04m

£490

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 16/10

13:06-10:20

1 stop16h 14m

London Heathrow

Sat 31/10

08:55-21:59

1 stop17h 04m

£490

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 20/9

13:25-07:15

1 stop12h 50m

London Heathrow

Tue 22/9

06:50-23:50

2 stops22h 00m

£512

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 19/9

01:00-06:55

2 stops24h 55m

London Heathrow

Tue 22/9

06:50-23:50

2 stops22h 00m

£515

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/9

07:00-07:55

1 stop19h 55m

London Heathrow

Thu 24/9

07:30-23:50

2 stops21h 20m

£521

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 16/10

14:31-11:20

1 stop15h 49m

London Heathrow

Sat 31/10

08:55-21:59

1 stop17h 04m

£526

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

14:26-13:15

1 stop17h 49m

London Heathrow

Mon 28/9

06:15-23:44

2 stops22h 29m

£528

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 14/10

07:00-09:25

2 stops21h 25m

London Gatwick

Tue 20/10

17:00-21:59

2 stops33h 59m

£552

San JuanLondon

SJU - LCY

SJULCY

San Juan Luis Munoz Marin Intl

Mon 24/8

13:06-17:20

2 stops23h 14m

London City

Mon 31/8

10:00-11:56

2 stops30h 56m

£593

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 £612 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 £505 on momondo.

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

You could potentially save up to 44% 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 April 2026, prices for San Juan Luis Munoz Marin Intl Airport to London flights are approximately 16% more expensive 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 40m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to London takes 11h 40m
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.
Search flight deals

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 40m, 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 many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to London?

  • 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.

Best airlines flying from San Juan Luis Munoz Marin Intl Airport to London

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to London with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom £567Free CancellationRating
7.1
2,967 reviews
Search JetBlue flights

Travelling to a place near London?

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Gatwick
Slough
Wembley
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Ipswich
Southend-on-Sea
Ilford
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Hayes
Chelmsford
Folkestone
Dover
Chichester
Bedford
Ramsgate
Harlow

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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Find better results for your trip to the United Kingdom

Fly into one of these airports located in London

Airports listed have a maximum distance of 35.6 mi from London
London City Airport
London Gatwick Airport
London Heathrow Airport
London Luton Airport
London Southend Airport
London Stansted Airport