Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £210

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 Luis Munoz Marin Intl Airport to London departing on 23/11. 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 San Juan Luis Munoz Marin Intl Airport to London

Cheap return flights

Enter your travel dates to find the best prices.
Virgin Atlantic Logo
07:15 - 06:20SJU-LHR
19h 05m1 stop
Virgin Atlantic Logo
10:10 - 23:59LHR-SJU
17h 49m1 stop
£386Virgin Atlantic
Find Deal
Tue, 2 Dec - Tue, 9 Dec
KLM Logo
14:10 - 10:15SJU-LHR
16h 05m1 stop
KLM Logo
15:50 - 12:42LHR-SJU
24h 52m1 stop
£416KLM
Find Deal
Tue, 2 Dec - Tue, 9 Dec
Delta Logo
07:15 - 06:20SJU-LHR
19h 05m1 stop
Delta Logo
20:00 - 17:28LHR-SJU
25h 28m2 stops
£424Delta
Find Deal
Tue, 2 Dec - Tue, 9 Dec
United Airlines Logo
02:05 - 20:35SJU-LHR
14h 30m1 stop
United Airlines Logo
06:50 - 21:00LHR-SJU
18h 10m2 stops
£425United Airlines
Find Deal
Mon, 1 Dec - Tue, 9 Dec
Delta Logo
07:30 - 11:40SJU-LHR
24h 10m1 stop
Delta Logo
08:55 - 23:49LHR-SJU
18h 54m1 stop
£426Delta
Find Deal
Wed, 18 Feb - Thu, 26 Feb
Delta Logo
07:30 - 08:45SJU-LHR
21h 15m2 stops
Delta Logo
10:45 - 23:49LHR-SJU
17h 04m1 stop
£430Delta
Find Deal
Wed, 18 Feb - Thu, 26 Feb
KLM Logo
13:55 - 09:00SJU-LHR
15h 05m1 stop
KLM Logo
16:10 - 02:27LHR-SJU
14h 17m1 stop
£434KLM
Find Deal
Tue, 2 Dec - Sun, 21 Dec
United Airlines Logo
02:05 - 20:35SJU-LHR
14h 30m1 stop
United Airlines Logo
07:30 - 22:22LHR-SJU
18h 52m2 stops
£441United Airlines
Find Deal
Mon, 1 Dec - Sun, 7 Dec
Air France Logo
15:55 - 11:40SJU-LHR
15h 45m1 stop
Air France Logo
08:55 - 20:57LHR-SJU
16h 02m1 stop
£441Air France
Find Deal
Thu, 22 Jan - Thu, 29 Jan
Iberia Logo
14:47 - 08:15SJU-LHR
13h 28m1 stop
Iberia Logo
12:10 - 23:58LHR-SJU
15h 48m1 stop
£464Iberia
Find Deal
Fri, 14 Nov - Sun, 16 Nov

KLM flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

Our best KLM deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight tickets
KLM
9 Nov
SJU13:57San Juan Luis Munoz Marin Intl
13h 53m
1 stop
LHR07:50London Heathrow
20 Nov
LHR10:10London Heathrow
17h 46m
1 stop
SJU23:56San Juan Luis Munoz Marin Intl
£408
Find similar
KLM
9 Nov
SJU13:57San Juan Luis Munoz Marin Intl
15h 03m
1 stop
LHR09:00London Heathrow
20 Nov
LHR08:55London Heathrow
18h 18m
1 stop
SJU23:13San Juan Luis Munoz Marin Intl
£409
Find similar
KLM
2 Dec
SJU14:10San Juan Luis Munoz Marin Intl
16h 05m
1 stop
LHR10:15London Heathrow
9 Dec
LHR15:50London Heathrow
24h 52m
1 stop
SJU12:42San Juan Luis Munoz Marin Intl
£416
Find similar

Delta flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport

Our best Delta deals on San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight tickets
Delta
11 Nov
SJU07:00San Juan Luis Munoz Marin Intl
20h 05m
2 stops
LHR07:05London Heathrow
20 Nov
LHR20:00London Heathrow
20h 56m
1 stop
SJU12:56San Juan Luis Munoz Marin Intl
£423
Find similar
Delta
2 Dec
SJU07:15San Juan Luis Munoz Marin Intl
19h 05m
1 stop
LHR06:20London Heathrow
9 Dec
LHR20:00London Heathrow
25h 28m
2 stops
SJU17:28San Juan Luis Munoz Marin Intl
£424
Find similar
Delta
18 Feb
SJU07:30San Juan Luis Munoz Marin Intl
24h 10m
1 stop
LHR11:40London Heathrow
26 Feb
LHR08:55London Heathrow
18h 54m
1 stop
SJU23:49San Juan Luis Munoz Marin Intl
£426
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow 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 5 November 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/12

07:15-06:20

1 stop19h 05m

London Heathrow

Tue 9/12

10:10-23:59

1 stop17h 49m

£386

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/12

14:10-10:15

1 stop16h 05m

London Heathrow

Tue 9/12

15:50-12:42

1 stop24h 52m

£416

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/12

07:15-06:20

1 stop19h 05m

London Heathrow

Tue 9/12

20:00-17:28

2 stops25h 28m

£424

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 1/12

02:05-20:35

1 stop14h 30m

London Heathrow

Tue 9/12

06:50-21:00

2 stops18h 10m

£425

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/2

07:30-11:40

1 stop24h 10m

London Heathrow

Thu 26/2

08:55-23:49

1 stop18h 54m

£426

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 18/2

07:30-08:45

2 stops21h 15m

London Heathrow

Thu 26/2

10:45-23:49

1 stop17h 04m

£430

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 2/12

13:55-09:00

1 stop15h 05m

London Heathrow

Sun 21/12

16:10-02:27

1 stop14h 17m

£434

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Mon 1/12

02:05-20:35

1 stop14h 30m

London Heathrow

Sun 7/12

07:30-22:22

2 stops18h 52m

£441

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 22/1

15:55-11:40

1 stop15h 45m

London Heathrow

Thu 29/1

08:55-20:57

1 stop16h 02m

£441

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 14/11

14:47-08:15

1 stop13h 28m

London Heathrow

Sun 16/11

12:10-23:58

1 stop15h 48m

£464

Flights are sorted by cheapest return flights first.

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

See travel insights to London from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport to London Heathrow 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 month to fly to London Heathrow Airport?

In general, September is the cheapest month to fly from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £473. The month of March is another great option to travel to London Heathrow Airport, with average flight prices from San Juan Luis Munoz Marin Intl Airport averaging around £505.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £482. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Saturday is £1,086.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is at midday. momondo users have found flights departing from San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport at midday for as low as £553. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are £1,083 on average. Flights to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport in the evening are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £628 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from San Juan Luis Munoz Marin Intl Airport for as low as £489 on momondo.

How have San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flight prices changed over time?

As of November 2025, prices for San Juan Luis Munoz Marin Intl Airport to London Heathrow Airport flights are approximately 13% cheaper when compared to flights at the same time last year.

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

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

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

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

Direct flights

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

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

    A flight from San Juan Luis Munoz Marin Intl to London Heathrow will travel around 4178.9 mi. By plane, this route typically takes 12h 22m.

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

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

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

  • What documentation or ID do you need to fly to London Heathrow Airport?

    The travel and health documents you'll need for your trip to London Heathrow Airport 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 London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near London?

Book flights to London if you plan to visit one of these locations
Eastbourne
Milton Keynes
Luton
Gatwick
Maidstone
Slough
Northampton
Swindon
Canterbury
Stratford-upon-Avon
Southend-on-Sea
Ipswich
Ilford
Poole
Guildford
Swanage
Dover
Colchester
Chelmsford
Hayes

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Juan to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from San Juan with this policy.

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

momondo helps you find the best flight between San Juan and London 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 London right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to London from San Juan. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your London Heathrow 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
Fri 5/12
Fri 12/12
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to London