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Cheap flights from London Stansted Airport to Puerto Rico from £322

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Stansted Airport to Puerto Rico departing on 7/2. 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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Find the cheapest flights from London Stansted Airport to Puerto Rico

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:15 - 11:35STN-SJU
25h 20m2 stops
Multiple Airlines Logo
13:00 - 13:30SJU-STN
20h 30m2 stops
£626Multiple Airlines
Find Deal
Wed, 28 Jan - Thu, 5 Feb
Multiple Airlines Logo
09:35 - 19:55STN-SJU
14h 20m1 stop
Multiple Airlines Logo
21:25 - 14:05SJU-STN
12h 40m1 stop
£635Multiple Airlines
Find Deal
Mon, 2 Feb - Mon, 16 Feb
Multiple Airlines Logo
14:15 - 19:55STN-SJU
33h 40m1 stop
Multiple Airlines Logo
10:52 - 07:50SJU-STN
16h 58m2 stops
£641Multiple Airlines
Find Deal
Wed, 28 Jan - Thu, 5 Feb
Multiple Airlines Logo
18:35 - 17:05STN-SJU
26h 30m2 stops
Multiple Airlines Logo
18:30 - 19:30SJU-STN
21h 00m2 stops
£660Multiple Airlines
Find Deal
Sat, 28 Feb - Sun, 8 Mar
Multiple Airlines Logo
08:05 - 19:55STN-SJU
15h 50m1 stop
Multiple Airlines Logo
17:00 - 18:10SJU-STN
21h 10m2 stops
£674Multiple Airlines
Find Deal
Fri, 23 Jan - Sat, 31 Jan
Multiple Airlines Logo
11:55 - 17:05STN-SJU
33h 10m2 stops
Multiple Airlines Logo
18:30 - 20:00SJU-STN
21h 30m2 stops
£676Multiple Airlines
Find Deal
Sun, 1 Feb - Mon, 9 Feb
Multiple Airlines Logo
08:05 - 11:35STN-SJU
31h 30m2 stops
Multiple Airlines Logo
18:30 - 16:15SJU-STN
17h 45m2 stops
£677Multiple Airlines
Find Deal
Mon, 9 Feb - Sun, 22 Feb
Multiple Airlines Logo
18:35 - 17:05STN-SJU
26h 30m2 stops
Multiple Airlines Logo
21:25 - 14:00SJU-STN
12h 35m1 stop
£680Multiple Airlines
Find Deal
Sat, 28 Feb - Sun, 8 Mar
Multiple Airlines Logo
14:25 - 11:35STN-SJU
25h 10m2 stops
Multiple Airlines Logo
21:25 - 14:05SJU-STN
12h 40m1 stop
£688Multiple Airlines
Find Deal
Mon, 2 Feb - Mon, 16 Feb
Multiple Airlines Logo
08:05 - 11:35STN-SJU
31h 30m2 stops
Multiple Airlines Logo
21:25 - 16:15SJU-STN
14h 50m1 stop
£694Multiple Airlines
Find Deal
Mon, 9 Feb - Sun, 22 Feb

momondo Fare Finder

 
Customise your flight search to find flights from London Stansted Airport to Puerto Rico 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 13 November 2025.
Use the filters below to find and compare flights from London Stansted Airport to Puerto Rico that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 28/1

14:15-11:35

2 stops25h 20m

San Juan Luis Munoz Marin Intl

Thu 5/2

13:00-13:30

2 stops20h 30m

£626

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 2/2

09:35-19:55

1 stop14h 20m

San Juan Luis Munoz Marin Intl

Mon 16/2

21:25-14:05

1 stop12h 40m

£635

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Wed 28/1

14:15-19:55

1 stop33h 40m

San Juan Luis Munoz Marin Intl

Thu 5/2

10:52-07:50

2 stops16h 58m

£641

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 28/2

18:35-17:05

2 stops26h 30m

San Juan Luis Munoz Marin Intl

Sun 8/3

18:30-19:30

2 stops21h 00m

£660

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Fri 23/1

08:05-19:55

1 stop15h 50m

San Juan Luis Munoz Marin Intl

Sat 31/1

17:00-18:10

2 stops21h 10m

£674

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sun 1/2

11:55-17:05

2 stops33h 10m

San Juan Luis Munoz Marin Intl

Mon 9/2

18:30-20:00

2 stops21h 30m

£676

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 9/2

08:05-11:35

2 stops31h 30m

San Juan Luis Munoz Marin Intl

Sun 22/2

18:30-16:15

2 stops17h 45m

£677

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 28/2

18:35-17:05

2 stops26h 30m

San Juan Luis Munoz Marin Intl

Sun 8/3

21:25-14:00

1 stop12h 35m

£680

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 2/2

14:25-11:35

2 stops25h 10m

San Juan Luis Munoz Marin Intl

Mon 16/2

21:25-14:05

1 stop12h 40m

£688

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 9/2

08:05-11:35

2 stops31h 30m

San Juan Luis Munoz Marin Intl

Sun 22/2

21:25-16:15

1 stop14h 50m

£694

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Cheap London Stansted Airport to Puerto Rico flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to Puerto Rico

Direct flights

None
There are no direct flights from London Stansted Airport to Puerto Rico. There are no popular flight routes from London Stansted Airport to Puerto Rico.
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  • When did momondo last update prices for flights from London Stansted Airport to Puerto Rico?

    Prices for flights from London Stansted Airport to Puerto Rico were last updated today.

  • How old do you have to be to fly from London Stansted Airport to Puerto Rico?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from London Stansted Airport to Puerto Rico.

  • What documentation or ID do you need to fly to Puerto Rico?

    The required travel and health documents for your Puerto Rico trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Puerto Rico. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • How do I get Price Alerts for flights from London Stansted Airport to Puerto Rico?

    Search flight deals from London Stansted Airport to Puerto Rico. While viewing offers you’ll have the option to create a Price Alert.

  • How can I save money on flights from London Stansted Airport to Puerto Rico with momondo?

    Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

  • How does momondo find its flight prices?

    momondo shows deals across 700+ competitors all at once. momondo is active in 30 international markets, so you can have access to a wide range of options from airlines and OTAs alike.

Why use momondo?

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

Finding the right flight to Puerto Rico from London 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 Puerto Rico quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for London to Puerto Rico flights to just show those with flexible booking policies.

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

Once all potential London to Puerto Rico flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are simply researching potential flights to Puerto Rico, momondo offers a useful price alert feature which will track prices for flights to Puerto Rico from London and alert you when they change.

An easier way to manage your Puerto Rico trip

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Find better results for your trip to Puerto Rico

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