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

Virgin Atlantic, KLM, 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 many operators does momondo search for flights from San Juan to United Kingdom?

As of April 2026, there is 1 operator available to choose from for flights from San Juan to United Kingdom.

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.

£200 Cheap Flights from San Juan to the United Kingdom in 2026

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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.

13:35 - 10:20

SJU

LHR

15h 45m

1 stop

19:45 - 22:00

LHR

SJU

31h 15m

2 stops

£466Virgin Atlantic

Wed, 9 Sep - Mon, 14 Sep

07:15 - 10:20

SJU

LHR

22h 05m

1 stop

13:25 - 23:13

LHR

SJU

14h 48m

1 stop

£470Virgin Atlantic

Wed, 22 Apr - Wed, 29 Apr

17:41 - 13:15

SJU

LHR

14h 34m

1 stop

12:50 - 23:44

LHR

SJU

15h 54m

1 stop

£471Virgin Atlantic

Thu, 24 Sep - Wed, 30 Sep

14:45 - 13:15

SJU

LHR

17h 30m

1 stop

18:35 - 23:35

LHR

SJU

34h 00m

1 stop

£533KLM

Thu, 23 Apr - Sat, 9 May

14:45 - 11:50

SJU

EDI

16h 05m

1 stop

11:20 - 22:17

EDI

SJU

15h 57m

2 stops

£569KLM

Thu, 30 Apr - Wed, 13 May

17:42 - 07:05

SJU

EDI

32h 23m

1 stop

09:00 - 20:30

EDI

SJU

16h 30m

1 stop

£572Multiple Airlines

Fri, 1 May - Wed, 13 May

17:42 - 07:05

SJU

EDI

32h 23m

1 stop

11:20 - 22:17

EDI

SJU

15h 57m

2 stops

£573Multiple Airlines

Fri, 1 May - Wed, 13 May

12:05 - 09:45

SJU

MAN

16h 40m

2 stops

07:05 - 20:10

MAN

SJU

18h 05m

2 stops

£665British Airways

Thu, 24 Sep - Wed, 7 Oct

12:05 - 09:45

SJU

MAN

16h 40m

2 stops

07:05 - 20:10

MAN

SJU

18h 05m

2 stops

£666British Airways

Thu, 24 Sep - Wed, 7 Oct

06:00 - 09:35

SJU

LGW

22h 35m

1 stop

12:20 - 14:00

LGW

SJU

30h 40m

1 stop

£683JetBlue

Wed, 12 Aug - Wed, 26 Aug

Delta flights from San Juan to United Kingdom

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

Delta

18 Apr

SJU16:10San Juan Luis Munoz Marin Intl

15h 55m

1 stop

LHR13:05London Heathrow

26 Apr

LHR08:40London Heathrow

20h 19m

2 stops

SJU23:59San Juan Luis Munoz Marin Intl

£536

Delta

30 Apr

SJU06:15San Juan Luis Munoz Marin Intl

19h 10m

1 stop

LHR06:25London Heathrow

11 May

LHR09:55London Heathrow

18h 40m

2 stops

SJU23:35San Juan Luis Munoz Marin Intl

£537

Delta

30 Apr

SJU14:45San Juan Luis Munoz Marin Intl

16h 25m

2 stops

LHR12:10London Heathrow

11 May

LHR08:40London Heathrow

19h 55m

2 stops

SJU23:35San Juan Luis Munoz Marin Intl

£539

KLM flights from San Juan to United Kingdom

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

KLM

23 Apr

SJU14:45San Juan Luis Munoz Marin Intl

17h 30m

1 stop

LHR13:15London Heathrow

9 May

LHR18:35London Heathrow

34h 00m

1 stop

SJU23:35San Juan Luis Munoz Marin Intl

£533

KLM

23 Apr

SJU14:45San Juan Luis Munoz Marin Intl

15h 35m

1 stop

LHR11:20London Heathrow

9 May

LHR09:20London Heathrow

16h 10m

1 stop

SJU20:30San Juan Luis Munoz Marin Intl

£534

KLM

22 Apr

SJU14:45San Juan Luis Munoz Marin Intl

15h 35m

1 stop

LHR11:20London Heathrow

29 Apr

LHR11:20London Heathrow

17h 39m

1 stop

SJU23:59San Juan Luis Munoz Marin Intl

£535

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 9/9

13:35-10:20

1 stop15h 45m

London Heathrow

Mon 14/9

19:45-22:00

2 stops31h 15m

£466

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 22/4

07:15-10:20

1 stop22h 05m

London Heathrow

Wed 29/4

13:25-23:13

1 stop14h 48m

£470

Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 24/9

17:41-13:15

1 stop14h 34m

London Heathrow

Wed 30/9

12:50-23:44

1 stop15h 54m

£471

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 23/4

14:45-13:15

1 stop17h 30m

London Heathrow

Sat 9/5

18:35-23:35

1 stop34h 00m

£533

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Thu 30/4

14:45-11:50

1 stop16h 05m

Edinburgh Turnhouse

Wed 13/5

11:20-22:17

2 stops15h 57m

£569

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Fri 1/5

17:42-07:05

1 stop32h 23m

Edinburgh Turnhouse

Wed 13/5

09:00-20:30

1 stop16h 30m

£572

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Fri 1/5

17:42-07:05

1 stop32h 23m

Edinburgh Turnhouse

Wed 13/5

11:20-22:17

2 stops15h 57m

£573

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Thu 24/9

12:05-09:45

2 stops16h 40m

Manchester

Wed 7/10

07:05-20:10

2 stops18h 05m

£665

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Thu 24/9

12:05-09:45

2 stops16h 40m

Manchester

Wed 7/10

07:05-20:10

2 stops18h 05m

£666

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 12/8

06:00-09:35

1 stop22h 35m

London Gatwick

Wed 26/8

12:20-14:00

1 stop30h 40m

£683

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 £440, 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 £472.

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 £639 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 £516 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

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 many operators does momondo search for flights from San Juan to United Kingdom?
As of April 2026, there is 1 operator available to choose from for flights from San Juan to United Kingdom.
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.

Best airlines flying from San Juan to United Kingdom

Compare and see reviews for airlines that fly from San Juan to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom £579	Free Cancellation	Rating 7.2 2,922 reviews		Search JetBlue flights

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.