Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from London Stansted Airport to San Juan from £314

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 San Juan departing on 10/1. 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
Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from London Stansted Airport to San Juan

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
08:05 - 15:20STN-SJU
35h 15m2 stops
Multiple Airlines Logo
07:00 - 22:35SJU-STN
35h 35m3 stops
£624Multiple Airlines
Find Deal
Mon, 19 Jan - Sun, 25 Jan
Multiple Airlines Logo
18:35 - 17:05STN-SJU
26h 30m2 stops
Multiple Airlines Logo
16:45 - 19:30SJU-STN
22h 45m2 stops
£641Multiple Airlines
Find Deal
Sat, 7 Feb - Sun, 15 Feb
Multiple Airlines Logo
08:05 - 15:20STN-SJU
35h 15m2 stops
Multiple Airlines Logo
16:45 - 19:30SJU-STN
22h 45m2 stops
£655Multiple Airlines
Find Deal
Mon, 19 Jan - Sun, 25 Jan
Multiple Airlines Logo
14:30 - 17:05STN-SJU
30h 35m2 stops
Multiple Airlines Logo
13:00 - 13:50SJU-STN
20h 50m2 stops
£657Multiple Airlines
Find Deal
Tue, 10 Mar - Tue, 24 Mar
Multiple Airlines Logo
08:05 - 15:20STN-SJU
35h 15m2 stops
Multiple Airlines Logo
13:00 - 20:15SJU-STN
27h 15m2 stops
£658Multiple Airlines
Find Deal
Mon, 26 Jan - Tue, 10 Feb
Multiple Airlines Logo
09:35 - 15:20STN-SJU
33h 45m2 stops
Multiple Airlines Logo
16:45 - 19:30SJU-STN
22h 45m2 stops
£659Multiple Airlines
Find Deal
Mon, 19 Jan - Sun, 25 Jan
Multiple Airlines Logo
08:10 - 19:55STN-SJU
15h 45m1 stop
Multiple Airlines Logo
18:30 - 20:15SJU-STN
21h 45m2 stops
£680Multiple Airlines
Find Deal
Tue, 10 Mar - Tue, 24 Mar
Multiple Airlines Logo
07:40 - 17:05STN-SJU
37h 25m2 stops
Multiple Airlines Logo
21:25 - 14:10SJU-STN
12h 45m1 stop
£690Multiple Airlines
Find Deal
Thu, 12 Feb - Wed, 18 Feb
Multiple Airlines Logo
18:35 - 17:05STN-SJU
26h 30m2 stops
Multiple Airlines Logo
21:25 - 14:00SJU-STN
12h 35m1 stop
£691Multiple Airlines
Find Deal
Sat, 7 Feb - Sun, 15 Feb
Multiple Airlines Logo
20:10 - 17:05STN-SJU
24h 55m2 stops
Multiple Airlines Logo
21:25 - 14:10SJU-STN
12h 45m1 stop
£694Multiple Airlines
Find Deal
Sat, 14 Feb - Wed, 18 Feb

momondo Fare Finder

 
Customise your flight search to find flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport 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 31 October 2025.
Use the filters below to find and compare flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 19/1

08:05-15:20

2 stops35h 15m

San Juan Luis Munoz Marin Intl

Sun 25/1

07:00-22:35

3 stops35h 35m

£624

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 7/2

18:35-17:05

2 stops26h 30m

San Juan Luis Munoz Marin Intl

Sun 15/2

16:45-19:30

2 stops22h 45m

£641

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 19/1

08:05-15:20

2 stops35h 15m

San Juan Luis Munoz Marin Intl

Sun 25/1

16:45-19:30

2 stops22h 45m

£655

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Tue 10/3

14:30-17:05

2 stops30h 35m

San Juan Luis Munoz Marin Intl

Tue 24/3

13:00-13:50

2 stops20h 50m

£657

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 26/1

08:05-15:20

2 stops35h 15m

San Juan Luis Munoz Marin Intl

Tue 10/2

13:00-20:15

2 stops27h 15m

£658

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Mon 19/1

09:35-15:20

2 stops33h 45m

San Juan Luis Munoz Marin Intl

Sun 25/1

16:45-19:30

2 stops22h 45m

£659

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Tue 10/3

08:10-19:55

1 stop15h 45m

San Juan Luis Munoz Marin Intl

Tue 24/3

18:30-20:15

2 stops21h 45m

£680

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Thu 12/2

07:40-17:05

2 stops37h 25m

San Juan Luis Munoz Marin Intl

Wed 18/2

21:25-14:10

1 stop12h 45m

£690

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 7/2

18:35-17:05

2 stops26h 30m

San Juan Luis Munoz Marin Intl

Sun 15/2

21:25-14:00

1 stop12h 35m

£691

LondonSan Juan

STN - SJU

STNSJU

London Stansted

Sat 14/2

20:10-17:05

2 stops24h 55m

San Juan Luis Munoz Marin Intl

Wed 18/2

21:25-14:10

1 stop12h 45m

£694

Flights are sorted by cheapest return flights first.

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

See travel insights to San Juan from

How to get the cheapest flight ticket from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport

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 day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest day to depart from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport is on a Monday when prices can be found for as low as £540. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport for around £658.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

In the morning is the cheapest time of day to fly from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport when you can find flight prices for as low as £597. Flying to San Juan Luis Munoz Marin Intl Airport in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £853 on average. Flights to San Juan Luis Munoz Marin Intl Airport from London Stansted Airport in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

When to book flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap London Stansted Airport to San Juan Luis Munoz Marin Intl Airport (STN to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport

Direct flights

None
There are no direct flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport. There are no popular flight routes from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport.
Search flight deals

  • How far is London Stansted to San Juan Luis Munoz Marin Intl by plane?

    The distance between London Stansted and San Juan Luis Munoz Marin Intl is about 4211.9 mi. A reasonable flight in good conditions will take 14h 20m.

  • When did momondo last update prices for flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How old do you have to be to fly from London Stansted Airport to San Juan Luis Munoz Marin Intl Airport?

    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 San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The necessary travel and health documents for your San Juan Luis Munoz Marin Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Carolina
Fajardo
Dorado

Why use momondo?

Why should I use momondo to find a flight deal from London to San Juan?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to San Juan for you.

Can I find flights from London to San Juan with flexible booking policies on momondo?

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

How can momondo help me find flights from London to San Juan?

Once all potential London to San Juan 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 San Juan right now. Can momondo alert me if prices change?

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

An easier way to manage your San Juan Luis Munoz Marin Intl Airport trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 30/11
Sun 7/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to San Juan