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

JetBlue is the most popular carrier 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.

£150 Cheap Flights from San Juan to the United Kingdom in 2025/26

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Find the cheapest flights from San Juan to the United Kingdom

Round-trip

One-way

Last minute

Cheap return flights

16:45 - 15:50SJU-GLA

19h 05m2 stops

06:35 - 23:52GLA-SJU

21h 17m2 stops

£384American Airlines

Find Deal

Wed, 29 Oct - Fri, 7 Nov

01:05 - 20:40SJU-LHR

14h 35m1 stop

12:00 - 23:57LHR-SJU

16h 57m1 stop

£387Lufthansa

Find Deal

Mon, 6 Oct - Tue, 21 Oct

18:10 - 16:35SJU-LHR

18h 25m1 stop

11:25 - 19:55LHR-SJU

12h 30m1 stop

£408Iberia

Find Deal

Sun, 18 Jan - Tue, 27 Jan

13:57 - 09:00SJU-LHR

15h 03m1 stop

15:50 - 12:46LHR-SJU

24h 56m1 stop

£417KLM

Find Deal

Sun, 9 Nov - Thu, 20 Nov

18:50 - 12:05SJU-LHR

13h 15m1 stop

13:10 - 23:30LHR-SJU

14h 20m1 stop

£424British Airways

Find Deal

Wed, 18 Feb - Fri, 27 Feb

01:05 - 20:40SJU-LHR

14h 35m1 stop

08:30 - 23:57LHR-SJU

20h 27m2 stops

£427United Airlines

Find Deal

Mon, 6 Oct - Tue, 21 Oct

15:52 - 11:15SJU-LHR

15h 23m1 stop

09:10 - 22:22LHR-SJU

17h 12m2 stops

£427United Airlines

Find Deal

Wed, 29 Oct - Tue, 4 Nov

16:50 - 11:30SJU-LHR

14h 40m1 stop

13:25 - 00:10LHR-SJU

15h 45m1 stop

£436British Airways

Find Deal

Mon, 12 Jan - Fri, 17 Apr

07:00 - 09:20SJU-EDI

21h 20m1 stop

14:05 - 23:56EDI-SJU

14h 51m1 stop

£447KLM

Find Deal

Mon, 13 Oct - Thu, 23 Oct

18:10 - 10:50SJU-LGW

12h 40m1 stop

11:45 - 19:55LGW-SJU

12h 10m1 stop

£548Iberia

Find Deal

Wed, 18 Feb - Thu, 26 Feb

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 Sept

SJU15:56San Juan Luis Munoz Marin Intl

14h 49m

1 stop

LHR11:45London Heathrow

1 Oct

LHR09:30London Heathrow

19h 27m

2 stops

SJU23:57San Juan Luis Munoz Marin Intl

£424

Find similar

United Airlines

24 Sept

SJU14:55San Juan Luis Munoz Marin Intl

15h 40m

1 stop

LHR11:35London Heathrow

1 Oct

LHR12:15London Heathrow

16h 42m

2 stops

SJU23:57San Juan Luis Munoz Marin Intl

£427

Find similar

United Airlines

29 Oct

SJU15:52San Juan Luis Munoz Marin Intl

15h 23m

1 stop

LHR11:15London Heathrow

4 Nov

LHR09:10London Heathrow

17h 12m

2 stops

SJU22:22San Juan Luis Munoz Marin Intl

£427

Find similar

Delta flights from San Juan to United Kingdom

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

Delta

29 Oct

SJU07:15San Juan Luis Munoz Marin Intl

21h 30m

2 stops

LHR08:45London Heathrow

6 Nov

LHR14:30London Heathrow

14h 26m

1 stop

SJU00:56San Juan Luis Munoz Marin Intl

£431

Find similar

Delta

18 Jan

SJU06:15San Juan Luis Munoz Marin Intl

21h 35m

1 stop

LHR07:50London Heathrow

27 Jan

LHR08:55London Heathrow

15h 35m

1 stop

SJU20:30San Juan Luis Munoz Marin Intl

£434

Find similar

Delta

15 Feb

SJU06:15San Juan Luis Munoz Marin Intl

21h 35m

1 stop

LHR07:50London Heathrow

25 Feb

LHR10:10London Heathrow

17h 39m

2 stops

SJU23:49San Juan Luis Munoz Marin Intl

£437

Find similar

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 JuanGlasgow

SJU - GLA

SJUGLA

San Juan Luis Munoz Marin Intl

Wed 29/10

16:45-15:50

2 stops19h 05m

Glasgow Intl

Fri 7/11

06:35-23:52

2 stops21h 17m

£384

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 6/10

01:05-20:40

1 stop14h 35m

London Heathrow

Tue 21/10

12:00-23:57

1 stop16h 57m

£387

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 18/1

18:10-16:35

1 stop18h 25m

London Heathrow

Tue 27/1

11:25-19:55

1 stop12h 30m

£408

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 9/11

13:57-09:00

1 stop15h 03m

London Heathrow

Thu 20/11

15:50-12:46

1 stop24h 56m

£417

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/2

18:50-12:05

1 stop13h 15m

London Heathrow

Fri 27/2

13:10-23:30

1 stop14h 20m

£424

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 6/10

01:05-20:40

1 stop14h 35m

London Heathrow

Tue 21/10

08:30-23:57

2 stops20h 27m

£427

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

15:52-11:15

1 stop15h 23m

London Heathrow

Tue 4/11

09:10-22:22

2 stops17h 12m

£427

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 12/1

16:50-11:30

1 stop14h 40m

London Heathrow

Fri 17/4

13:25-00:10

1 stop15h 45m

£436

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Mon 13/10

07:00-09:20

1 stop21h 20m

Edinburgh Turnhouse

Thu 23/10

14:05-23:56

1 stop14h 51m

£447

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 18/2

18:10-10:50

1 stop12h 40m

London Gatwick

Thu 26/2

11:45-19:55

1 stop12h 10m

£548

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 £489, 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 October is also very affordable. Most momondo users find prices during this month for around £489.

What is the cheapest day to depart on your flight to United Kingdom?

The cheapest day to depart from San Juan to United Kingdom is on a Wednesday. Travellers who choose to depart for United Kingdom on a Wednesday will often find tickets for as low as £484. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Juan to United Kingdom for around £776.

What is the cheapest time of day to depart on your flight to United Kingdom?

The cheapest time of day to fly to United Kingdom is in the afternoon when flights can be purchased for as low as £484. Try not to purchase tickets in the morning because they tend to be around £839. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 £602 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 £449 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

Direct flights	None

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.