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

British Airways, United Airlines, and Delta 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.

£155 Cheap Flights from San Juan to the United Kingdom in 2026

1 adult

0 bags

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from San Juan to the United Kingdom

Round-trip

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

01:45 - 10:00

SJU

LGW

27h 15m

1 stop

17:00 - 10:26

LGW

SJU

46h 26m

2 stops

£414Multiple Airlines

Mon, 30 Mar - Sat, 18 Apr

14:10 - 07:55

SJU

EDI

13h 45m

1 stop

09:25 - 22:22

EDI

SJU

16h 57m

2 stops

£415United Airlines

Tue, 24 Feb - Tue, 3 Mar

21:25 - 19:00

SJU

LGW

17h 35m

1 stop

11:45 - 19:55

LGW

SJU

12h 10m

1 stop

£416Iberia

Tue, 24 Feb - Tue, 3 Mar

16:40 - 12:05

SJU

LHR

15h 25m

1 stop

11:25 - 19:55

LHR

SJU

12h 30m

1 stop

£419American Airlines

Tue, 24 Feb - Tue, 3 Mar

16:50 - 10:50

SJU

LHR

14h 00m

1 stop

06:50 - 21:22

LHR

SJU

18h 32m

2 stops

£419United Airlines

Wed, 11 Mar - Wed, 18 Mar

07:30 - 06:25

SJU

LHR

18h 55m

1 stop

06:30 - 23:58

LHR

SJU

21h 28m

2 stops

£424Delta

Tue, 24 Feb - Tue, 3 Mar

07:30 - 06:55

SJU

LHR

19h 25m

2 stops

08:40 - 23:58

LHR

SJU

19h 18m

2 stops

£427Delta

Tue, 24 Feb - Tue, 3 Mar

16:40 - 15:15

SJU

EDI

18h 35m

2 stops

07:50 - 22:58

EDI

SJU

19h 08m

2 stops

£430American Airlines

Tue, 3 Mar - Tue, 10 Mar

17:22 - 09:30

SJU

LHR

12h 08m

1 stop

12:20 - 22:51

LHR

SJU

14h 31m

1 stop

£430JetBlue

Wed, 11 Mar - Wed, 18 Mar

21:25 - 14:05

SJU

LCY

12h 40m

1 stop

07:50 - 16:35

LCY

SJU

12h 45m

1 stop

£720Iberia

Wed, 11 Mar - Wed, 18 Mar

KLM flights from San Juan to United Kingdom

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

KLM

23 Feb

SJU14:16San Juan Luis Munoz Marin Intl

15h 59m

1 stop

LHR10:15London Heathrow

2 Mar

LHR10:45London Heathrow

17h 13m

1 stop

SJU23:58San Juan Luis Munoz Marin Intl

£440

KLM

19 Mar

SJU13:14San Juan Luis Munoz Marin Intl

13h 36m

1 stop

LHR06:50London Heathrow

26 Mar

LHR08:55London Heathrow

18h 20m

1 stop

SJU23:15San Juan Luis Munoz Marin Intl

£442

KLM

22 Apr

SJU13:25San Juan Luis Munoz Marin Intl

14h 25m

1 stop

LHR08:50London Heathrow

29 Apr

LHR13:25London Heathrow

14h 48m

1 stop

SJU23:13San Juan Luis Munoz Marin Intl

£446

United Airlines flights from San Juan to United Kingdom

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

United Airlines

24 Feb

SJU08:30San Juan Luis Munoz Marin Intl

19h 25m

2 stops

EDI07:55Edinburgh Turnhouse

3 Mar

EDI09:25Edinburgh Turnhouse

31h 52m

2 stops

SJU13:17San Juan Luis Munoz Marin Intl

£415

United Airlines

23 Feb

SJU17:50San Juan Luis Munoz Marin Intl

13h 00m

1 stop

LHR10:50London Heathrow

2 Mar

LHR06:50London Heathrow

19h 32m

2 stops

SJU22:22San Juan Luis Munoz Marin Intl

£419

United Airlines

24 Feb

SJU16:52San Juan Luis Munoz Marin Intl

14h 23m

1 stop

LHR11:15London Heathrow

3 Mar

LHR06:50London Heathrow

18h 10m

2 stops

SJU21:00San Juan Luis Munoz Marin Intl

£421

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

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Mon 30/3

01:45-10:00

1 stop27h 15m

London Gatwick

Sat 18/4

17:00-10:26

2 stops46h 26m

£414

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Tue 24/2

14:10-07:55

1 stop13h 45m

Edinburgh Turnhouse

Tue 3/3

09:25-22:22

2 stops16h 57m

£415

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Tue 24/2

21:25-19:00

1 stop17h 35m

London Gatwick

Tue 3/3

11:45-19:55

1 stop12h 10m

£416

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 24/2

16:40-12:05

1 stop15h 25m

London Heathrow

Tue 3/3

11:25-19:55

1 stop12h 30m

£419

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/3

16:50-10:50

1 stop14h 00m

London Heathrow

Wed 18/3

06:50-21:22

2 stops18h 32m

£419

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 24/2

07:30-06:25

1 stop18h 55m

London Heathrow

Tue 3/3

06:30-23:58

2 stops21h 28m

£424

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 24/2

07:30-06:55

2 stops19h 25m

London Heathrow

Tue 3/3

08:40-23:58

2 stops19h 18m

£427

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Tue 3/3

16:40-15:15

2 stops18h 35m

Edinburgh Turnhouse

Tue 10/3

07:50-22:58

2 stops19h 08m

£430

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 11/3

17:22-09:30

1 stop12h 08m

London Heathrow

Wed 18/3

12:20-22:51

1 stop14h 31m

£430

San JuanLondon

SJU - LCY

SJULCY

San Juan Luis Munoz Marin Intl

Wed 11/3

21:25-14:05

1 stop12h 40m

London City

Wed 18/3

07:50-16:35

1 stop12h 45m

£720

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 £425, 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 January is also very affordable. Most momondo users find prices during this month for around £456.

How far in advance should I book a flight to 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 £607 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 £515 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

Fastest flight time	12h 25m
Direct flights	None

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

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.