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Cheap flights from London Heathrow Airport to San Juan from £321

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from London Heathrow Airport to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
JetBlue Logo
09:20 - 19:21LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 01m1 stop Boston Logan Intl
JetBlue Logo
15:53 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 37m1 stop New York John F Kennedy Intl
£598JetBlue
Mon, 28 Dec - Wed, 6 Jan
JetBlue Logo
07:45 - 18:24LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 39m1 stop New York John F Kennedy Intl
JetBlue Logo
15:00 - 09:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
14h 30m1 stop New York John F Kennedy Intl
£607JetBlue
Sun, 6 Dec - Thu, 10 Dec
JetBlue Logo
09:20 - 19:21LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 01m1 stop Boston Logan Intl
JetBlue Logo
15:05 - 06:53SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
11h 48m1 stop Boston Logan Intl
£623JetBlue
Mon, 28 Dec - Wed, 6 Jan
Multiple Airlines Logo
20:00 - 11:25LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
20h 25m2 stops Madrid Barajas Bogotá El Dorado
Multiple Airlines Logo
17:50 - 13:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
14h 25m1 stop Atlanta Hartsfield-Jackson
£625Multiple Airlines
Fri, 7 May - Thu, 13 May
Multiple Airlines Logo
10:45 - 11:25LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
28h 40m2 stops Madrid Barajas Bogotá El Dorado
Multiple Airlines Logo
14:25 - 08:30SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
14h 05m1 stop Toronto Pearson Intl
£632Multiple Airlines
Mon, 22 Feb - Fri, 5 Mar
Multiple Airlines Logo
09:15 - 16:55LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
35h 40m2 stops Madrid Barajas Bogotá El Dorado
Multiple Airlines Logo
18:20 - 14:35SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
16h 15m1 stop Bogotá El Dorado
£637Multiple Airlines
Sun, 21 Feb - Mon, 1 Mar
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
18:10 - 17:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 05m1 stop Madrid Barajas
£714Iberia
Tue, 2 Feb - Mon, 22 Feb
Iberia Logo
09:15 - 20:00LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
14h 45m1 stop Madrid Barajas
Iberia Logo
18:10 - 17:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 05m1 stop Madrid Barajas
£716Iberia
Tue, 2 Feb - Mon, 22 Feb
British Airways Logo
06:30 - 23:59LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
21h 29m2 stops Dublin Philadelphia
British Airways Logo
15:01 - 08:15SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
13h 14m1 stop Miami
£923British Airways
Mon, 18 Jan - Thu, 11 Feb
British Airways Logo
06:30 - 00:58LHR  London Heathrow-SJU San Juan Luis Munoz Marin Intl
22h 28m2 stops Dublin Philadelphia
British Airways Logo
12:00 - 11:55SJU  San Juan Luis Munoz Marin Intl-LHR London Heathrow
19h 55m2 stops Miami Madrid Barajas
£981British Airways
Thu, 18 Feb - Mon, 22 Feb

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Avianca flights from London Heathrow Airport to San Juan

Our best Avianca deals on London Heathrow Airport to San Juan flight tickets
Avianca
17 Feb
LHR21:35London Heathrow
23h 20m
1 stop
SJU16:55San Juan Luis Munoz Marin Intl
22 Feb
SJU18:20San Juan Luis Munoz Marin Intl
16h 15m
1 stop
LHR14:35London Heathrow
£702
Avianca
25 Nov
LHR21:35London Heathrow
17h 50m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
4 Dec
SJU18:20San Juan Luis Munoz Marin Intl
16h 15m
1 stop
LHR14:35London Heathrow
£709
Avianca
25 Nov
LHR21:35London Heathrow
17h 50m
1 stop
SJU11:25San Juan Luis Munoz Marin Intl
4 Dec
SJU18:20San Juan Luis Munoz Marin Intl
16h 15m
1 stop
LHR14:35London Heathrow
£710

JetBlue flights from London Heathrow Airport to San Juan

Our best JetBlue deals on London Heathrow Airport to San Juan flight tickets
JetBlue
28 Dec
LHR09:20London Heathrow
14h 01m
1 stop
SJU19:21San Juan Luis Munoz Marin Intl
6 Jan
SJU15:53San Juan Luis Munoz Marin Intl
13h 37m
1 stop
LHR09:30London Heathrow
£598
JetBlue
6 Dec
LHR07:45London Heathrow
14h 39m
1 stop
SJU18:24San Juan Luis Munoz Marin Intl
10 Dec
SJU15:00San Juan Luis Munoz Marin Intl
14h 30m
1 stop
LHR09:30London Heathrow
£607
JetBlue
28 Dec
LHR09:20London Heathrow
14h 01m
1 stop
SJU19:21San Juan Luis Munoz Marin Intl
6 Jan
SJU15:05San Juan Luis Munoz Marin Intl
11h 48m
1 stop
LHR06:53London Heathrow
£623

momondo Fare Finder

 
Use the filters below to find and compare flights from London Heathrow Airport to San Juan that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Mon 28/12

09:20-19:21

1 stop14h 01m

San Juan Luis Munoz Marin Intl

Wed 6/1

15:53-09:30

1 stop13h 37m

£598

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sun 6/12

07:45-18:24

1 stop14h 39m

San Juan Luis Munoz Marin Intl

Thu 10/12

15:00-09:30

1 stop14h 30m

£607
Fastest return journey

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Mon 28/12

09:20-19:21

1 stop14h 01m

San Juan Luis Munoz Marin Intl

Wed 6/1

15:05-06:53

1 stop11h 48m

£623

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Fri 7/5

20:00-11:25

2 stops20h 25m

San Juan Luis Munoz Marin Intl

Thu 13/5

17:50-13:15

1 stop14h 25m

£625

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Mon 22/2

10:45-11:25

2 stops28h 40m

San Juan Luis Munoz Marin Intl

Fri 5/3

14:25-08:30

1 stop14h 05m

£632

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Sun 21/2

09:15-16:55

2 stops35h 40m

San Juan Luis Munoz Marin Intl

Mon 1/3

18:20-14:35

1 stop16h 15m

£637

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Tue 2/2

09:15-20:00

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Mon 22/2

18:10-17:15

1 stop19h 05m

£714

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Tue 2/2

09:15-20:00

1 stop14h 45m

San Juan Luis Munoz Marin Intl

Mon 22/2

18:10-17:15

1 stop19h 05m

£716

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Mon 18/1

06:30-23:59

2 stops21h 29m

San Juan Luis Munoz Marin Intl

Thu 11/2

15:01-08:15

1 stop13h 14m

£923

LondonSan Juan

LHR London Heathrow - SJU San Juan Luis Munoz Marin Intl

LHRSJU

London Heathrow

Thu 18/2

06:30-00:58

2 stops22h 28m

San Juan Luis Munoz Marin Intl

Mon 22/2

12:00-11:55

2 stops19h 55m

£981

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 San Juan from

How to get the cheapest flight ticket from London Heathrow Airport to San Juan

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 London Heathrow Airport and San Juan?

Prices are currently low for flights on this route.

Typical prices usually range from £611 to £803.
The lowest price recently found on this route was £598.

What is the cheapest month to fly to San Juan?

The cheapest month to fly to San Juan from London Heathrow Airport is in February. Flight prices, which tend to average around £580, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to San Juan from London Heathrow Airport during October instead. Flights to San Juan in October, while not as cheap as those in February, still average around £604.

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

You are more likely to see cheaper flights to San Juan from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Juan for around £755 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan from London Heathrow Airport for as low as £586 on momondo.

Cheap London Heathrow Airport to San Juan flight deals and tips

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

Best price found

£321

Fastest flight time

14h 15m

Direct flights

None
The best one-way flight to San Juan from London Heathrow Airport in the past 72 hours is £321. The best return flight deal from London Heathrow Airport to San Juan found on momondo in the last 72 hours is £598.
The fastest flight from London Heathrow Airport to San Juan takes 14h 15m
There are no direct flights from London Heathrow Airport to San Juan. There are no popular flight routes from London Heathrow Airport to San Juan.
Search flight deals

Frequently asked questions about flying from London Heathrow Airport to San Juan

  • How far is London Heathrow to San Juan by plane?

    The distance between London Heathrow and San Juan is about 4182.0 mi. A reasonable flight in good conditions will take 14h 15m.

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

    Prices for flights from London Heathrow Airport to San Juan are updated daily.

  • How many operators does momondo search for flights from London Heathrow Airport to San Juan?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to San Juan.

  • What documentation or ID do you need to fly to San Juan?

    The required travel and health documents for your San Juan trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Juan. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from London Heathrow Airport to San Juan

Compare and see reviews for airlines that fly from London Heathrow Airport to San Juan with momondo
Airline
Rating
Free Cancellation
Price
JetBluePriceFrom £413Free CancellationRating
7.1
3,076 reviews
Search JetBlue flights
IberiaPriceFrom £857Free CancellationRating
7.0
3,224 reviews
Search Iberia flights
British AirwaysPriceFrom £858Free CancellationRating
6.7
8,278 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from London to San Juan?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Juan from London.

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

Yes. momondo allows you to filter the results for London to San Juan flights to just show those with flexible booking policies.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from London to San Juan.

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

Yes. momondo can track prices for London to San Juan 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 Puerto Rico

Fly into one of these airports located in San Juan

San Juan Luis Munoz Marin Intl Airport