Cheap flights from San Juan to the United Kingdom from £156

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan to the United Kingdom departing on 12/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

American Airlines Logo
16:45 - 12:50SJU-GLA
16h 05m2 stops
American Airlines Logo
08:55 - 23:58GLA-SJU
19h 03m2 stops
£386American Airlines
Find Deal
Wed, 29 Oct - Fri, 7 Nov
Lufthansa Logo
01:05 - 20:40SJU-LHR
14h 35m1 stop
Lufthansa Logo
12:00 - 23:57LHR-SJU
16h 57m1 stop
£389Lufthansa
Find Deal
Mon, 6 Oct - Tue, 21 Oct
Virgin Atlantic Logo
13:06 - 06:20SJU-LHR
13h 14m1 stop
Virgin Atlantic Logo
10:10 - 00:56LHR-SJU
18h 46m1 stop
£400Virgin Atlantic
Find Deal
Wed, 29 Oct - Wed, 5 Nov
British Airways Logo
17:00 - 15:50SJU-GLA
18h 50m2 stops
British Airways Logo
20:25 - 23:52GLA-SJU
31h 27m2 stops
£408British Airways
Find Deal
Wed, 29 Oct - Wed, 5 Nov
Iberia Logo
18:10 - 16:35SJU-LHR
18h 25m1 stop
Iberia Logo
11:25 - 19:55LHR-SJU
12h 30m1 stop
£409Iberia
Find Deal
Sun, 18 Jan - Tue, 27 Jan
KLM Logo
13:06 - 08:50SJU-LHR
14h 44m1 stop
KLM Logo
10:55 - 23:56LHR-SJU
18h 01m1 stop
£419KLM
Find Deal
Tue, 14 Oct - Tue, 21 Oct
KLM Logo
14:31 - 09:00SJU-LHR
14h 29m1 stop
KLM Logo
10:10 - 00:56LHR-SJU
18h 46m1 stop
£425KLM
Find Deal
Wed, 29 Oct - Fri, 7 Nov
Virgin Atlantic Logo
07:15 - 06:40SJU-MAN
19h 25m1 stop
Virgin Atlantic Logo
09:05 - 23:13MAN-SJU
18h 08m1 stop
£444Virgin Atlantic
Find Deal
Wed, 12 Nov - Sun, 16 Nov
Iberia Logo
18:10 - 10:50SJU-LGW
12h 40m1 stop
Iberia Logo
11:45 - 19:55LGW-SJU
12h 10m1 stop
£478Iberia
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Wed, 18 Feb - Thu, 26 Feb
British Airways Logo
12:55 - 09:30SJU-EDI
16h 35m2 stops
British Airways Logo
08:15 - 23:52EDI-SJU
19h 37m2 stops
£615British Airways
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Wed, 19 Nov - Sat, 29 Nov

Air Canada flights from San Juan to United Kingdom

Our best Air Canada deals on San Juan to United Kingdom flight tickets
Air Canada
15 Oct
SJU01:05San Juan Luis Munoz Marin Intl
24h 30m
2 stops
LHR06:35London Heathrow
21 Oct
LHR09:30London Heathrow
19h 27m
2 stops
SJU23:57San Juan Luis Munoz Marin Intl
Air Canada
23 Oct
SJU01:05San Juan Luis Munoz Marin Intl
27h 30m
2 stops
LHR09:35London Heathrow
1 Nov
LHR18:00London Heathrow
24h 50m
1 stop
SJU14:50San Juan Luis Munoz Marin Intl
Air Canada
22 Oct
SJU01:05San Juan Luis Munoz Marin Intl
27h 30m
2 stops
LHR09:35London Heathrow
3 Nov
LHR11:10London Heathrow
30h 07m
2 stops
SJU13:17San Juan Luis Munoz Marin Intl

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
7 Nov
LHR15:50London Heathrow
26h 22m
2 stops
SJU14:12San Juan Luis Munoz Marin Intl
Delta
12 Nov
SJU07:15San Juan Luis Munoz Marin Intl
22h 55m
2 stops
MAN10:10Manchester
16 Nov
MAN09:05Manchester
18h 08m
1 stop
SJU23:13San Juan Luis Munoz Marin Intl
Delta
1 Oct
SJU13:32San Juan Luis Munoz Marin Intl
17h 33m
1 stop
LHR12:05London Heathrow
11 Oct
LHR20:25London Heathrow
20h 31m
1 stop
SJU11:56San Juan Luis Munoz Marin Intl

momondo Fare Finder

 
Customise your flight search to find flights from San Juan to United Kingdom that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 16 September 2025.
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

16:45-12:50

2 stops16h 05m

Glasgow Intl

Fri 7/11

08:55-23:58

2 stops19h 03m

£386

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

£389

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

13:06-06:20

1 stop13h 14m

London Heathrow

Wed 5/11

10:10-00:56

1 stop18h 46m

£400

San JuanGlasgow

SJU - GLA

SJUGLA

San Juan Luis Munoz Marin Intl

Wed 29/10

17:00-15:50

2 stops18h 50m

Glasgow Intl

Wed 5/11

20:25-23:52

2 stops31h 27m

£408

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

£409

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 14/10

13:06-08:50

1 stop14h 44m

London Heathrow

Tue 21/10

10:55-23:56

1 stop18h 01m

£419

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

14:31-09:00

1 stop14h 29m

London Heathrow

Fri 7/11

10:10-00:56

1 stop18h 46m

£425

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Wed 12/11

07:15-06:40

1 stop19h 25m

Manchester

Sun 16/11

09:05-23:13

1 stop18h 08m

£444

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

£478

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Wed 19/11

12:55-09:30

2 stops16h 35m

Edinburgh Turnhouse

Sat 29/11

08:15-23:52

2 stops19h 37m

£615

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 the United Kingdom from

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

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 £491, 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 £491.

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 £486. 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 £779.

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 £486. Try not to purchase tickets in the morning because they tend to be around £842. 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 £604 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 £450 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.
  • 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.

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1 adult
Thu 16/10
Thu 23/10

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