What is the cheapest airline that flies from San Juan to United Kingdom?

JetBlue, United Airlines, and Air France are the most popular carriers operating from San Juan to United Kingdom

When did momondo last update prices for flights from San Juan to United Kingdom?

Prices for flights from San Juan to United Kingdom are refreshed on a daily basis.

How old do you have to be to fly from San Juan to United Kingdom?

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 San Juan to United Kingdom.

What documentation or ID do you need to fly to United Kingdom?

The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£205 Cheap Flights from San Juan to the United Kingdom in 2026/27

Find the cheapest flights from San Juan to the United Kingdom

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

16:55 - 07:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

35h 00m1 stop Chicago O'Hare Intl

06:50 - 13:32LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

34h 42m2 stops Brussels Bruxelles-National Newark

£529United Airlines

Mon, 1 Feb - Thu, 4 Feb

16:20 - 11:40SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 20m1 stop Atlanta Hartsfield-Jackson

06:30 - 23:13LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

20h 43m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£532Virgin Atlantic

Thu, 26 Nov - Thu, 3 Dec

12:50 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

21h 45m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£543Avianca

Thu, 19 Nov - Sat, 28 Nov

13:00 - 13:15SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

19h 15m1 stop Atlanta Hartsfield-Jackson

06:30 - 20:20LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

18h 50m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£545Virgin Atlantic

Mon, 29 Mar - Mon, 5 Apr

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 11:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 50m1 stop Bogotá El Dorado

£546Avianca

Sat, 27 Feb - Wed, 17 Mar

14:45 - 06:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

34h 40m1 stop Atlanta Hartsfield-Jackson

06:15 - 23:19LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

22h 04m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson

£547Virgin Atlantic

Mon, 29 Mar - Mon, 5 Apr

18:45 - 17:05SJU San Juan Luis Munoz Marin Intl-MAN Manchester

41h 20m2 stops Newark Frankfurt am Main

06:05 - 13:45MAN Manchester-SJU San Juan Luis Munoz Marin Intl

36h 40m2 stops Brussels Bruxelles-National Newark

£548United Airlines

Sun, 25 Apr - Wed, 28 Apr

12:50 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

21h 45m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£550Avianca

Thu, 18 Feb - Sun, 21 Feb

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 11:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 50m1 stop Bogotá El Dorado

£550Avianca

Sun, 28 Feb - Wed, 17 Mar

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 11:25LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 50m1 stop Bogotá El Dorado

£551Avianca

Tue, 17 Nov - Fri, 27 Nov

Cheap last-minute flights

Enter your travel dates to find the best prices.

12:50 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

21h 45m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£543Avianca

Thu, 5 Nov - Tue, 10 Nov

20:39 - 06:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

30h 16m1 stop Boston Logan Intl

08:05 - 03:27LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 22m1 stop New York John F Kennedy Intl

£594JetBlue

Sat, 7 Nov - Fri, 27 Nov

15:17 - 12:05SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 48m1 stop Miami

11:25 - 20:00LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

12h 35m1 stop Madrid Barajas

£602Iberia

Thu, 5 Nov - Thu, 12 Nov

18:20 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£603Avianca

Thu, 5 Nov - Tue, 10 Nov

12:50 - 14:35SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

21h 45m1 stop Bogotá El Dorado

21:35 - 16:55LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

23h 20m1 stop Bogotá El Dorado

£603Avianca

Thu, 5 Nov - Tue, 10 Nov

14:15 - 10:30SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

16h 15m1 stop New York John F Kennedy Intl

10:00 - 23:15LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

17h 15m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

£606KLM

Fri, 6 Nov - Thu, 12 Nov

13:00 - 08:25SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 25m1 stop Newark

06:50 - 00:36LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

21h 46m2 stops Brussels Bruxelles-National Newark

£612United Airlines

Thu, 5 Nov - Mon, 9 Nov

08:05 - 06:20SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

18h 15m2 stops Washington, D.C. Dulles Intl Newark

06:50 - 22:22LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 32m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

£615United Airlines

Thu, 5 Nov - Thu, 12 Nov

14:52 - 10:50SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

15h 58m2 stops Newark Washington, D.C. Dulles Intl

06:50 - 22:22LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 32m2 stops Brussels Bruxelles-National Washington, D.C. Dulles Intl

£615United Airlines

Fri, 6 Nov - Thu, 12 Nov

11:20 - 20:55SJU San Juan Luis Munoz Marin Intl-LHR London Heathrow

29h 35m1 stop New York John F Kennedy Intl

09:20 - 01:13LHR London Heathrow-SJU San Juan Luis Munoz Marin Intl

19h 53m1 stop Boston Logan Intl

£624JetBlue

Thu, 5 Nov - Tue, 10 Nov

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United Airlines flights from San Juan to United Kingdom

Our best United Airlines deals on San Juan to United Kingdom flight tickets

United Airlines

1 Feb

SJU16:55San Juan Luis Munoz Marin Intl

35h 00m

1 stop

LHR07:55London Heathrow

4 Feb

LHR06:50London Heathrow

34h 42m

2 stops

SJU13:32San Juan Luis Munoz Marin Intl

£529

United Airlines

25 Apr

SJU18:45San Juan Luis Munoz Marin Intl

41h 20m

2 stops

MAN17:05Manchester

28 Apr

MAN06:05Manchester

36h 40m

2 stops

SJU13:45San Juan Luis Munoz Marin Intl

£548

United Airlines

16 Nov

SJU17:50San Juan Luis Munoz Marin Intl

13h 00m

1 stop

LHR10:50London Heathrow

20 Nov

LHR06:50London Heathrow

21h 46m

2 stops

SJU00:36San Juan Luis Munoz Marin Intl

£605

Virgin Atlantic flights from San Juan to United Kingdom

Our best Virgin Atlantic deals on San Juan to United Kingdom flight tickets

Virgin Atlantic

26 Nov

SJU16:20San Juan Luis Munoz Marin Intl

15h 20m

1 stop

LHR11:40London Heathrow

3 Dec

LHR06:30London Heathrow

20h 43m

2 stops

SJU23:13San Juan Luis Munoz Marin Intl

£532

Virgin Atlantic

29 Mar

SJU13:00San Juan Luis Munoz Marin Intl

19h 15m

1 stop

LHR13:15London Heathrow

5 Apr

LHR06:30London Heathrow

18h 50m

2 stops

SJU20:20San Juan Luis Munoz Marin Intl

£545

Virgin Atlantic

29 Mar

SJU14:45San Juan Luis Munoz Marin Intl

34h 40m

1 stop

LHR06:25London Heathrow

5 Apr

LHR06:15London Heathrow

22h 04m

2 stops

SJU23:19San Juan Luis Munoz Marin Intl

£547

momondo Fare Finder

Use the filters below to find and compare flights from San Juan to the United Kingdom 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

Mon 1/2

16:55-07:55

1 stop35h 00m

London Heathrow

Thu 4/2

06:50-13:32

2 stops34h 42m

£529

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 26/11

16:20-11:40

1 stop15h 20m

London Heathrow

Thu 3/12

06:30-23:13

2 stops20h 43m

£532

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 19/11

12:50-14:35

1 stop21h 45m

London Heathrow

Sat 28/11

21:35-16:55

1 stop23h 20m

£543

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 29/3

13:00-13:15

1 stop19h 15m

London Heathrow

Mon 5/4

06:30-20:20

2 stops18h 50m

£545

Fastest return journey

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sat 27/2

18:20-14:35

1 stop16h 15m

London Heathrow

Wed 17/3

21:35-11:25

1 stop17h 50m

£546

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 29/3

14:45-06:25

1 stop34h 40m

London Heathrow

Mon 5/4

06:15-23:19

2 stops22h 04m

£547

San JuanManchester

SJU San Juan Luis Munoz Marin Intl - MAN Manchester

SJUMAN

San Juan Luis Munoz Marin Intl

Sun 25/4

18:45-17:05

2 stops41h 20m

Manchester

Wed 28/4

06:05-13:45

2 stops36h 40m

£548

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Thu 18/2

12:50-14:35

1 stop21h 45m

London Heathrow

Sun 21/2

21:35-16:55

1 stop23h 20m

£550

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 28/2

18:20-14:35

1 stop16h 15m

London Heathrow

Wed 17/3

21:35-11:25

1 stop17h 50m

£550

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 17/11

18:20-14:35

1 stop16h 15m

London Heathrow

Fri 27/11

21:35-11:25

1 stop17h 50m

£551

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from San Juan to United Kingdom

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

Prices

Airlines

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from San Juan is in February. Flight prices, which tend to average around £503, are often lower during this time because this is during the off-season. If you are unable to visit United Kingdom during the month of February, then departing from San Juan during the month March is also very affordable. Most momondo users find prices during this month for around £573.

How far in advance should I book a flight from San Juan to the United Kingdom?

You are more likely to see cheaper flights to United Kingdom from San Juan when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £694 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to United Kingdom from San Juan for as low as £544 on momondo.

Cheap San Juan to United Kingdom flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan to United Kingdom

Best price found	£205
Fastest flight time	12h 25m
Direct flights	None

The best one-way flight to United Kingdom from San Juan in the past 72 hours is £205. The best return flight deal from San Juan to United Kingdom found on momondo in the last 72 hours is £529.

The fastest flight from San Juan to United Kingdom takes 12h 25m

There are no direct flights from San Juan to United Kingdom. There are no popular flight routes from San Juan to United Kingdom.

Search flight deals

Frequently asked questions about flying from San Juan to the United Kingdom

When did momondo last update prices for flights from San Juan to United Kingdom?
Prices for flights from San Juan to United Kingdom are refreshed on a daily basis.
How old do you have to be to fly from San Juan to United Kingdom?
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 San Juan to United Kingdom.
What documentation or ID do you need to fly to United Kingdom?
The travel and health documents required for your trip to United Kingdom can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at United Kingdom. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

It is quick and easy to find San Juan to United Kingdom flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to United Kingdom that suits you.

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

Flights from San Juan to United Kingdom 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 United Kingdom?

momondo helps you find the best flight between San Juan and United Kingdom 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 United Kingdom right now. Can momondo alert me if prices change?

If you are not ready to book a flight from San Juan to United Kingdom now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to United Kingdom and let you know when they change.