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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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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
Virgin Atlantic Logo
13:16 - 06:45
SJU
-
LHR
12h 29m
1 stop
Virgin Atlantic Logo
11:45 - 23:59
LHR
-
SJU
17h 14m
1 stop
£525Virgin Atlantic
Sat, 23 May - Fri, 21 Aug
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
United Airlines Logo
01:00 - 10:15
SJU
-
LHR
28h 15m
2 stops
United Airlines Logo
10:00 - 15:42
LHR
-
SJU
34h 42m
1 stop
£529United Airlines
Tue, 22 Sep - Fri, 25 Sep

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

Our best United Airlines deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport 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 Heathrow Airport

Our best KLM deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport 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 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 28 April 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

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

Sat 23/5

13:16-06:45

1 stop12h 29m

London Heathrow

Fri 21/8

11:45-23:59

1 stop17h 14m

£525

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 - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/9

01:00-10:15

2 stops28h 15m

London Heathrow

Fri 25/9

10:00-15:42

1 stop34h 42m

£529

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 £456. The month of February is another great option to travel to London Heathrow Airport, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around £514.

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 £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 Heathrow Airport from San Juan Luis Munoz Marin Intl Airport for as low as £505 on momondo.

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

As of April 2026, prices for San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flights are approximately 12% 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 19m

Direct flights

None
The fastest flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport takes 12h 19m
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 19m.

  • 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 many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

  • 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.

  • What is the most popular airline from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport?

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

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

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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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