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Cheap flights from Puerto Rico to the United Kingdom from £150

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Puerto Rico to the United Kingdom departing on 3/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Puerto Rico to the United Kingdom

Recent return flight deals from Puerto Rico to the United Kingdom

Virgin Atlantic Logo
14:10 - 06:40SJU-MAN
12h 30m1 stop
Virgin Atlantic Logo
13:00 - 17:20MAN-SJU
32h 20m1 stop
£415Virgin Atlantic
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Wed, 12 Nov - Sun, 16 Nov
KLM Logo
14:10 - 08:05SJU-LHR
13h 55m1 stop
KLM Logo
12:30 - 23:13LHR-SJU
14h 43m1 stop
£420KLM
Find Deal
Tue, 11 Nov - Thu, 20 Nov
Delta Logo
17:41 - 07:15SJU-LHR
32h 34m1 stop
Delta Logo
09:55 - 23:56LHR-SJU
19h 01m2 stops
£425Delta
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Sat, 4 Oct - Tue, 14 Oct
United Airlines Logo
07:00 - 07:40SJU-LHR
19h 40m1 stop
United Airlines Logo
09:30 - 23:57LHR-SJU
19h 27m2 stops
£426United Airlines
Find Deal
Wed, 8 Oct - Wed, 15 Oct
United Airlines Logo
16:50 - 10:50SJU-LHR
14h 00m1 stop
United Airlines Logo
09:10 - 22:22LHR-SJU
17h 12m2 stops
£430United Airlines
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Wed, 29 Oct - Tue, 4 Nov
Delta Logo
07:15 - 08:45SJU-LHR
21h 30m2 stops
Delta Logo
14:30 - 00:56LHR-SJU
14h 26m1 stop
£433Delta
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Wed, 29 Oct - Thu, 6 Nov
Logo
14:35 - 06:35SJU-LHR
12h 00m1 stop
Logo
09:55 - 19:55LHR-SJU
15h 00m1 stop
£439
Find Deal
Mon, 12 Jan - Fri, 17 Apr
Logo
21:25 - 13:20SJU-LGW
11h 55m1 stop
Logo
07:50 - 19:55LGW-SJU
16h 05m1 stop
£448
Find Deal
Mon, 16 Feb - Thu, 26 Feb
Air Canada Logo
16:55 - 06:30SJU-LHR
32h 35m2 stops
Air Canada Logo
09:30 - 12:00LHR-SJU
31h 30m2 stops
£460Air Canada
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Sat, 4 Oct - Tue, 14 Oct
Air Canada Logo
01:05 - 21:35SJU-LHR
39h 30m2 stops
Air Canada Logo
13:25 - 12:49LHR-SJU
27h 24m2 stops
£478Air Canada
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Fri, 24 Oct - Sun, 2 Nov

Iberia flights from Puerto Rico to United Kingdom

Our best Iberia deals on Puerto Rico to United Kingdom flight tickets
Iberia
16 Feb
SJU21:25San Juan Luis Munoz Marin Intl
15h 10m
1 stop
LHR16:35London Heathrow
27 Feb
LHR09:15London Heathrow
14h 40m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
£475
Find similar
Iberia
18 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
26 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
£480
Find similar
Iberia
18 Feb
SJU18:10San Juan Luis Munoz Marin Intl
12h 40m
1 stop
LGW10:50London Gatwick
27 Feb
LGW11:45London Gatwick
12h 10m
1 stop
SJU19:55San Juan Luis Munoz Marin Intl
£517
Find similar

United Airlines flights from Puerto Rico to United Kingdom

Our best United Airlines deals on Puerto Rico to United Kingdom flight tickets
United Airlines
8 Oct
SJU07:00San Juan Luis Munoz Marin Intl
19h 40m
1 stop
LHR07:40London Heathrow
15 Oct
LHR09:30London Heathrow
19h 27m
2 stops
SJU23:57San Juan Luis Munoz Marin Intl
£426
Find similar
United Airlines
29 Oct
SJU16:50San Juan Luis Munoz Marin Intl
14h 00m
1 stop
LHR10:50London Heathrow
4 Nov
LHR09:10London Heathrow
17h 12m
2 stops
SJU22:22San Juan Luis Munoz Marin Intl
£430
Find similar
United Airlines
29 Oct
SJU13:20San Juan Luis Munoz Marin Intl
17h 30m
2 stops
LHR10:50London Heathrow
4 Nov
LHR07:40London Heathrow
20h 56m
2 stops
SJU00:36San Juan Luis Munoz Marin Intl
£430
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Puerto Rico 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 12 September 2025.
Use the filters below to find and compare flights from Puerto Rico to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanManchester

SJU - MAN

SJUMAN

San Juan Luis Munoz Marin Intl

Wed 12/11

14:10-06:40

1 stop12h 30m

Manchester

Sun 16/11

13:00-17:20

1 stop32h 20m

£415

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 11/11

14:10-08:05

1 stop13h 55m

London Heathrow

Thu 20/11

12:30-23:13

1 stop14h 43m

£420

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 4/10

17:41-07:15

1 stop32h 34m

London Heathrow

Tue 14/10

09:55-23:56

2 stops19h 01m

£425

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 8/10

07:00-07:40

1 stop19h 40m

London Heathrow

Wed 15/10

09:30-23:57

2 stops19h 27m

£426

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

16:50-10:50

1 stop14h 00m

London Heathrow

Tue 4/11

09:10-22:22

2 stops17h 12m

£430

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 29/10

07:15-08:45

2 stops21h 30m

London Heathrow

Thu 6/11

14:30-00:56

1 stop14h 26m

£433

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 12/1

14:35-06:35

1 stop12h 00m

London Heathrow

Fri 17/4

09:55-19:55

1 stop15h 00m

£439

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Mon 16/2

21:25-13:20

1 stop11h 55m

London Gatwick

Thu 26/2

07:50-19:55

1 stop16h 05m

£448

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sat 4/10

16:55-06:30

2 stops32h 35m

London Heathrow

Tue 14/10

09:30-12:00

2 stops31h 30m

£460

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 24/10

01:05-21:35

2 stops39h 30m

London Heathrow

Sun 2/11

13:25-12:49

2 stops27h 24m

£478

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 Puerto Rico 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 Puerto Rico is in February. Flight prices, which tend to average around £492, 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 Puerto Rico during the month October is also very affordable. Most momondo users find prices during this month for around £492.

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

The cheapest day to depart from Puerto Rico 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 £488. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Puerto Rico to United Kingdom for around £781.

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 £488. Try not to purchase tickets in the morning because they tend to be around £845. 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 Puerto Rico when booking weeks ahead of your departure date. In general, you can expect to find flights to United Kingdom for around £609 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 Puerto Rico for as low as £417 on momondo.

Can stopping save me money on Puerto Rico to United Kingdom flights?

You could potentially save up to 46% on your flight if you consider stops on a Puerto Rico to United Kingdom flight.

Cheap Puerto Rico to United Kingdom flight deals and tips

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

Direct flights

None
There are no direct flights from Puerto Rico to United Kingdom. There are no popular flight routes from Puerto Rico to United Kingdom.
Search flight deals

  • When did momondo last update prices for flights from Puerto Rico to United Kingdom?

    Prices for flights from Puerto Rico to United Kingdom are updated daily.

  • How old do you have to be to fly from Puerto Rico 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 Puerto Rico to United Kingdom.

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

    The travel and health documents you'll need for your trip to United Kingdom may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at United Kingdom. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Puerto Rico to United Kingdom?

Finding the right flight to United Kingdom from Puerto Rico is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to United Kingdom quick and easy, saving you time and money.

Can I find flights from Puerto Rico to United Kingdom with flexible booking policies on momondo?

Yes. All flights to United Kingdom from Puerto Rico on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Puerto Rico to United Kingdom?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to United Kingdom from Puerto Rico.

I’m not ready to book a flight from Puerto Rico to United Kingdom right now. Can momondo alert me if prices change?

Price alerts on flights to United Kingdom from Puerto Rico are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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