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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £197

1 adult
1 adult, Economy, 0 bags

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.
United Airlines Logo
02:05 - 21:20SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
15h 15m1 stop Newark
United Airlines Logo
06:50 - 11:50LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
33h 00m2 stops Brussels Bruxelles-National Newark
£519United Airlines
Tue, 1 Dec - Thu, 3 Dec
United Airlines Logo
08:05 - 06:40SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
18h 35m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
09:00 - 14:40LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
33h 40m2 stops Zurich Newark
£519United Airlines
Sun, 6 Dec - Mon, 7 Dec
United Airlines Logo
02:05 - 07:10SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
25h 05m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
12:05 - 11:50LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
27h 45m2 stops Zurich Newark
£522United Airlines
Sat, 5 Dec - Mon, 7 Dec
Virgin Atlantic Logo
07:00 - 11:40SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
24h 40m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
06:30 - 23:13LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
20h 43m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£524Virgin Atlantic
Thu, 26 Nov - Thu, 3 Dec
Virgin Atlantic Logo
07:30 - 07:25SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
18h 55m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
08:40 - 23:19LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
19h 39m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£534Virgin Atlantic
Mon, 29 Mar - Mon, 5 Apr
Virgin Atlantic Logo
13:15 - 08:50SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
14h 35m1 stop New York John F Kennedy Intl
Virgin Atlantic Logo
06:30 - 20:20LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
18h 50m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£534Virgin Atlantic
Tue, 20 Apr - Tue, 27 Apr
Virgin Atlantic Logo
13:15 - 10:20SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 05m1 stop New York John F Kennedy Intl
Virgin Atlantic Logo
06:30 - 20:20LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
18h 50m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
£536Virgin Atlantic
Tue, 20 Apr - Tue, 27 Apr
United Airlines Logo
08:05 - 10:05SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
22h 00m2 stops Washington, D.C. Dulles Intl Brussels Bruxelles-National
United Airlines Logo
13:00 - 00:36LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
39h 36m2 stops Montreal Pierre Elliott Trudeau Intl Newark
£538United Airlines
Wed, 2 Dec - Thu, 3 Dec
Virgin Atlantic Logo
13:00 - 07:25SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 25m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
08:55 - 23:19LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
19h 24m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson
£539Virgin Atlantic
Thu, 22 Apr - Wed, 28 Apr
Iberia Logo
15:14 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 01m1 stop Miami
Iberia Logo
11:25 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
12h 35m1 stop Madrid Barajas
£540Iberia
Wed, 3 Feb - Wed, 17 Feb

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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
1 Dec
SJU02:05San Juan Luis Munoz Marin Intl
15h 15m
1 stop
LHR21:20London Heathrow
3 Dec
LHR06:50London Heathrow
33h 00m
2 stops
SJU11:50San Juan Luis Munoz Marin Intl
£519
United Airlines
6 Dec
SJU08:05San Juan Luis Munoz Marin Intl
18h 35m
1 stop
LHR06:40London Heathrow
7 Dec
LHR09:00London Heathrow
33h 40m
2 stops
SJU14:40San Juan Luis Munoz Marin Intl
£519
United Airlines
5 Dec
SJU02:05San Juan Luis Munoz Marin Intl
25h 05m
2 stops
LHR07:10London Heathrow
7 Dec
LHR12:05London Heathrow
27h 45m
2 stops
SJU11:50San Juan Luis Munoz Marin Intl
£522

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

Our best Avianca deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight tickets
Avianca
5 Nov
SJU12:50San Juan Luis Munoz Marin Intl
21h 45m
1 stop
LHR14:35London Heathrow
9 Nov
LHR21:35London Heathrow
17h 50m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
£606
Avianca
28 Feb
SJU18:20San Juan Luis Munoz Marin Intl
16h 15m
1 stop
LHR14:35London Heathrow
17 Mar
LHR21:35London Heathrow
23h 20m
1 stop
SJU16:55San Juan Luis Munoz Marin Intl
£610
Avianca
21 Apr
SJU18:35San Juan Luis Munoz Marin Intl
16h 00m
1 stop
LHR15:35London Heathrow
26 Apr
LHR22:05London Heathrow
18h 20m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
£613

momondo Fare Finder

 
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 San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 1/12

02:05-21:20

1 stop15h 15m

London Heathrow

Thu 3/12

06:50-11:50

2 stops33h 00m

£519

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 6/12

08:05-06:40

1 stop18h 35m

London Heathrow

Mon 7/12

09:00-14:40

2 stops33h 40m

£519

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sat 5/12

02:05-07:10

2 stops25h 05m

London Heathrow

Mon 7/12

12:05-11:50

2 stops27h 45m

£522

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

07:00-11:40

1 stop24h 40m

London Heathrow

Thu 3/12

06:30-23:13

2 stops20h 43m

£524

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 29/3

07:30-07:25

1 stop18h 55m

London Heathrow

Mon 5/4

08:40-23:19

2 stops19h 39m

£534

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/4

13:15-08:50

1 stop14h 35m

London Heathrow

Tue 27/4

06:30-20:20

2 stops18h 50m

£534

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/4

13:15-10:20

1 stop16h 05m

London Heathrow

Tue 27/4

06:30-20:20

2 stops18h 50m

£536

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 2/12

08:05-10:05

2 stops22h 00m

London Heathrow

Thu 3/12

13:00-00:36

2 stops39h 36m

£538

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 22/4

13:00-07:25

1 stop13h 25m

London Heathrow

Wed 28/4

08:55-23:19

2 stops19h 24m

£539
Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Wed 3/2

15:14-08:15

1 stop13h 01m

London Heathrow

Wed 17/2

11:25-20:00

1 stop12h 35m

£540

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?

Prices are currently low for flights on this route.

Typical prices usually range from £595 to £797.
The lowest price recently found on this route was £519.

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

In general, February 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 £588. The month of April is another great option to travel to London Heathrow Airport, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around £594.

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 £696 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 £547 on momondo.

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

As of October 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

Best price found

£197

Fastest flight time

11h 48m

Direct flights

None
The best one-way flight to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport in the past 72 hours is £197. The best return flight deal from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport found on momondo in the last 72 hours is £519.
The fastest flight from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport takes 11h 48m
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 11h 48m.

  • 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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