How long is the flight from Puerto Rico to United Kingdom?

The flight from Puerto Rico to United Kingdom depends on which airports you’re departing from and arriving to, and whether or not you have a layover. If you fly from San Juan (a popular airport in Puerto Rico) to London Heathrow Airport (the most popular airport in United Kingdom), then the flight time is 12h 03m on average. If you fly from Ponce (another popular airport in Puerto Rico) to London Heathrow Airport, then the average flight time is 23h 44m.

What is the cheapest airline that flies from Puerto Rico to United Kingdom?

KLM, United Airlines, and Delta are the most popular carriers operating from Puerto Rico to United Kingdom

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 many operators does momondo search for flights from Puerto Rico to United Kingdom?

The number of operators available for flights from Puerto Rico to United Kingdom is 1 as of May 2026.

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.

£199 Cheap Flights from Puerto Rico to the United Kingdom in 2026

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

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 Puerto Rico to the United Kingdom

Round-trip

One-way

Last minute

Recent return flight deals from Puerto Rico to the United Kingdom

Enter your travel dates to find the best prices.

14:05 - 09:00

SJU

LHR

13h 55m

1 stop

12:15 - 23:59

LHR

SJU

16h 44m

1 stop

£523Iberia

Sun, 20 Sep - Sat, 26 Sep

14:00 - 09:00

SJU

LHR

14h 00m

1 stop

06:15 - 15:25

LHR

SJU

14h 10m

1 stop

£574Iberia

Sun, 18 Oct - Sat, 24 Oct

13:32 - 09:20

SJU

EDI

14h 48m

1 stop

11:20 - 23:56

EDI

SJU

17h 36m

2 stops

£599KLM

Tue, 29 Sep - Tue, 13 Oct

15:55 - 14:45

SJU

EDI

17h 50m

2 stops

10:30 - 23:59

EDI

SJU

18h 29m

2 stops

£600American Airlines

Mon, 21 Sep - Wed, 30 Sep

17:15 - 10:35

SJU

LHR

12h 20m

1 stop

10:50 - 18:50

LHR

SJU

13h 00m

1 stop

£600Iberia

Wed, 12 Aug - Wed, 26 Aug

15:47 - 12:50

SJU

LHR

16h 03m

1 stop

11:30 - 18:50

LHR

SJU

12h 20m

1 stop

£604American Airlines

Wed, 12 Aug - Wed, 26 Aug

13:30 - 07:05

SJU

EDI

12h 35m

1 stop

14:05 - 23:44

EDI

SJU

14h 39m

1 stop

£605Delta

Mon, 21 Sep - Wed, 30 Sep

14:26 - 11:50

SJU

EDI

16h 24m

1 stop

11:20 - 23:44

EDI

SJU

17h 24m

2 stops

£608KLM

Mon, 21 Sep - Wed, 30 Sep

13:32 - 10:20

SJU

LHR

15h 48m

1 stop

06:30 - 23:56

LHR

SJU

22h 26m

2 stops

£609Delta

Wed, 30 Sep - Tue, 6 Oct

08:30 - 09:35

SJU

LGW

20h 05m

1 stop

12:20 - 01:55

LGW

SJU

18h 35m

1 stop

£681JetBlue

Fri, 14 Aug - Fri, 28 Aug

Air Canada flights from Puerto Rico to United Kingdom

Our best Air Canada deals on Puerto Rico to United Kingdom flight tickets

Air Canada

8 Oct

SJU01:00San Juan Luis Munoz Marin Intl

39h 00m

2 stops

LHR21:00London Heathrow

20 Oct

LHR09:30London Heathrow

19h 20m

2 stops

SJU23:50San Juan Luis Munoz Marin Intl

£666

Air Canada

21 Oct

SJU18:45San Juan Luis Munoz Marin Intl

30h 45m

2 stops

MAN06:30Manchester

31 Oct

MAN11:50Manchester

30h 35m

1 stop

SJU14:25San Juan Luis Munoz Marin Intl

£739

Delta flights from Puerto Rico to United Kingdom

Our best Delta deals on Puerto Rico to United Kingdom flight tickets

Delta

21 Sept

SJU13:30San Juan Luis Munoz Marin Intl

12h 35m

1 stop

EDI07:05Edinburgh Turnhouse

30 Sept

EDI14:05Edinburgh Turnhouse

14h 39m

1 stop

SJU23:44San Juan Luis Munoz Marin Intl

£605

Delta

12 Aug

SJU12:56San Juan Luis Munoz Marin Intl

19h 09m

2 stops

LHR13:05London Heathrow

26 Aug

LHR18:35London Heathrow

27h 02m

2 stops

SJU16:37San Juan Luis Munoz Marin Intl

£633

Delta

12 Aug

SJU06:48San Juan Luis Munoz Marin Intl

21h 02m

2 stops

LHR08:50London Heathrow

26 Aug

LHR18:35London Heathrow

24h 07m

2 stops

SJU13:42San Juan Luis Munoz Marin Intl

£633

momondo Fare Finder

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

Cheapest return flight

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 20/9

14:05-09:00

1 stop13h 55m

London Heathrow

Sat 26/9

12:15-23:59

1 stop16h 44m

£523

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 18/10

14:00-09:00

1 stop14h 00m

London Heathrow

Sat 24/10

06:15-15:25

1 stop14h 10m

£574

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Tue 29/9

13:32-09:20

1 stop14h 48m

Edinburgh Turnhouse

Tue 13/10

11:20-23:56

2 stops17h 36m

£599

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Mon 21/9

15:55-14:45

2 stops17h 50m

Edinburgh Turnhouse

Wed 30/9

10:30-23:59

2 stops18h 29m

£600

Fastest return journey

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 12/8

17:15-10:35

1 stop12h 20m

London Heathrow

Wed 26/8

10:50-18:50

1 stop13h 00m

£600

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 12/8

15:47-12:50

1 stop16h 03m

London Heathrow

Wed 26/8

11:30-18:50

1 stop12h 20m

£604

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Mon 21/9

13:30-07:05

1 stop12h 35m

Edinburgh Turnhouse

Wed 30/9

14:05-23:44

1 stop14h 39m

£605

San JuanEdinburgh

SJU - EDI

SJUEDI

San Juan Luis Munoz Marin Intl

Mon 21/9

14:26-11:50

1 stop16h 24m

Edinburgh Turnhouse

Wed 30/9

11:20-23:44

2 stops17h 24m

£608

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 30/9

13:32-10:20

1 stop15h 48m

London Heathrow

Tue 6/10

06:30-23:56

2 stops22h 26m

£609

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Fri 14/8

08:30-09:35

1 stop20h 05m

London Gatwick

Fri 28/8

12:20-01:55

1 stop18h 35m

£681

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 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

Prices

Airlines

Other information

What is the cheapest month to fly to United Kingdom?

The cheapest month to fly to United Kingdom from Puerto Rico is in October. Flight prices, which tend to average around £75, 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 October, then departing from Puerto Rico during the month September is also very affordable. Most momondo users find prices during this month for around £75.

How far in advance should I book a flight from Puerto Rico to the 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 £613 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 £490 on momondo.

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

You could potentially save up to 10% 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

Fastest flight time	11h 20m
Direct flights	None

The fastest flight from Puerto Rico to United Kingdom takes 11h 20m

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

Frequently asked questions about flying from Puerto Rico to the United Kingdom

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 many operators does momondo search for flights from Puerto Rico to United Kingdom?
The number of operators available for flights from Puerto Rico to United Kingdom is 1 as of May 2026.
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.

Best airlines flying from Puerto Rico to United Kingdom

Compare and see reviews for airlines that fly from Puerto Rico to United Kingdom with momondo

Airline	Rating	Free Cancellation	Price
JetBlue	PriceFrom £567	Free Cancellation	Rating 7.1 2,973 reviews		Search JetBlue flights

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.