How long is the flight from San Juan Luis Munoz Marin Intl Airport to London?

JetBlue, Delta, and British Airways can get you from San Juan Luis Munoz Marin Intl Airport to London in just under 15h 21m. Your travel time can differ by up to 3h 57m. The distance from San Juan Luis Munoz Marin Intl Airport to London is about 4179 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to London?

Most travelers choose San Juan Luis Munoz Marin Intl - London Heathrow, San Juan Luis Munoz Marin Intl - London Gatwick or San Juan Luis Munoz Marin Intl - London City when deciding on the best route from San Juan Luis Munoz Marin Intl Airport to London.

What is the cheapest time of day to fly from SJU to LON?

When flying from San Juan Luis Munoz Marin Intl Airport to London, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Can I find deals for flights from Luis Munoz Marin Intl to London that include hotel bookings?

Yes. In addition to deals on Luis Munoz Marin Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Luis Munoz Marin Intl to London?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to London.

Can I find deals for business class flights from Luis Munoz Marin Intl to London?

Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£195+ Cheap Flights from San Juan Luis Munoz Marin Intl Airport to London

Cheap flight deals from Luis Munoz Marin Intl to London

Enter your travel dates to find the best prices.

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Cheapest flights from Luis Munoz Marin Intl to London
Explore the most affordable flight options available from Luis Munoz Marin Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 August 2026.

Wed 4/1107:23 -

1 stop18h 37m

Tue 10/1110:10 -

1 stop28h 05m

Deal found 20/8£477

Wed 4/1107:23 -

1 stop18h 37m

Thu 12/1111:00 -

1 stop35h 21m

Deal found 20/8£486

Wed 4/1107:23 -

1 stop18h 37m

Fri 13/1112:35 -

1 stop25h 40m

Deal found 20/8£521

Tue 3/1111:20 -

1 stop14h 40m

Tue 10/1110:10 -

1 stop28h 05m

Deal found 20/8£542

Mon 2/1103:55 -

1 stop22h 05m

Thu 12/1111:00 -

1 stop35h 37m

Deal found 20/8£543

Sun 11/1010:39 -

1 stop18h 21m

Thu 22/1014:00 -

1 stop16h 53m

Deal found 20/8£550

Wed 4/1107:23 -

1 stop18h 37m

Sun 15/1112:35 -

1 stop18h 15m

Deal found 20/8£554

Wed 4/1107:23 -

1 stop18h 37m

Wed 11/1110:10 -

1 stop20h 40m

Deal found 20/8£555

Sun 11/1010:39 -

1 stop18h 21m

Tue 20/1014:00 -

1 stop16h 53m

Deal found 20/8£556

Wed 23/910:42 -

1 stop18h 18m

Wed 30/914:00 -

1 stop16h 52m

Deal found 24/8£559

Wed 30/1218:40 -

1 stop13h 00m

Fri 8/111:35 -

1 stop16h 20m

Deal found 22/8£575

Thu 26/1114:10 -

1 stop13h 05m

Thu 3/1215:50 -

1 stop29h 05m

Deal found 23/8£579

Best flights from Luis Munoz Marin Intl to London
Discover carefully curated flight deals from Luis Munoz Marin Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 August 2026.

Sun 4/1002:57 -

1 stop26h 03m

Mon 12/1014:00 -

1 stop24h 18m

Deal found 21/8£583

Mon 12/1006:12 -

1 stop19h 18m

Tue 20/1008:40 -

1 stop20h 18m

Deal found 20/8£618

Mon 12/1014:59 -

1 stop15h 21m

Wed 21/1011:45 -

2 stops16h 59m

Deal found 20/8£625

Tue 20/1014:18 -

2 stops18h 17m

Tue 27/1011:25 -

2 stops28h 06m

Deal found 20/8£634

Tue 22/914:59 -

1 stop17h 16m

Sat 3/1009:40 -

2 stops17h 39m

Deal found 22/8£677

Thu 5/1107:00 -

2 stops22h 10m

Mon 9/1117:25 -

2 stops31h 20m

Deal found 24/8£849

Sun 22/1112:19 -

2 stops28h 16m

Mon 30/1110:40 -

2 stops27h 22m

Deal found 22/8£961

Sun 4/1013:00 -

1 stop15h 30m

Fri 9/1008:40 -

1 stop20h 18m

Deal found 19/8£618

Mon 28/1216:19 -

1 stop34h 46m

Fri 8/108:55 -

2 stops19h 00m

Deal found 19/8£636

Tue 20/1016:29 -

2 stops17h 46m

Tue 27/1008:50 -

2 stops28h 56m

Deal found 24/8£650

Sun 15/1111:45 -

1 stop17h 45m

Wed 18/1109:20 -

1 stop19h 05m

Deal found 22/8£634

Tue 15/1207:00 -

1 stop19h 20m

Wed 23/1210:50 -

1 stop14h 20m

Deal found 22/8£659

Tue 20/1013:15 -

2 stops22h 10m

Tue 27/1010:00 -

2 stops30h 05m

Deal found 24/8£796

Sun 11/1007:15 -

1 stop18h 10m

Sun 18/1020:05 -

2 stops25h 44m

Deal found 21/8£687

Thu 26/1112:19 -

2 stops24h 11m

Mon 30/1117:25 -

2 stops30h 27m

Deal found 24/8£860

Tue 13/1013:00 -

2 stops22h 35m

Mon 19/1010:50 -

2 stops31h 18m

Deal found 20/8£808

Thu 5/1111:34 -

2 stops17h 16m

Tue 10/1108:50 -

2 stops19h 09m

Deal found 22/8£926

Thu 5/1107:00 -

2 stops22h 10m

Mon 9/1110:05 -

2 stops31h 58m

Deal found 21/8£848

Sun 22/1110:32 -

2 stops18h 18m

Mon 30/1108:50 -

2 stops19h 07m

Deal found 24/8£974

Thu 5/1111:20 -

3 stops29h 15m

Tue 10/1121:20 -

3 stops31h 05m

Deal found 24/8£928

Tue 15/1221:35 -

1 stop12h 25m

Wed 23/1207:40 -

1 stop13h 00m

Deal found 23/8£1,010

Sun 22/1112:19 -

2 stops28h 16m

Mon 30/1111:00 -

3 stops27h 02m

Deal found 23/8£942

Thu 5/1121:35 -

1 stop12h 25m

Mon 9/1108:50 -

2 stops19h 09m

Deal found 21/8£1,113

Sun 15/1118:10 -

1 stop16h 05m

Wed 18/1107:40 -

1 stop13h 00m

Deal found 21/8£1,117

Thu 19/1121:35 -

1 stop12h 25m

Sat 28/1107:45 -

2 stops20h 12m

Deal found 24/8£1,213

Find flight deals from Luis Munoz Marin Intl to London

Round-trip from	£477
One-way from	£195
Popular in	June
Cheapest in	February
Average price	£669

4/11-10/11
2 total stops
46h 42m total
San Juan to London

Search Deals

Virgin Atlantic
16/9
1 total stop
12h 29m total
San Juan to London

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£113 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LGW London Gatwick

SJULGW

San Juan Luis Munoz Marin Intl

Sun 4/10

02:57-10:00

1 stop26h 03m

London Gatwick

Mon 12/10

14:00-09:18

1 stop24h 18m

£583

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 12/10

06:12-06:30

1 stop19h 18m

London Heathrow

Tue 20/10

08:40-23:58

1 stop20h 18m

£618

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 4/10

13:00-09:30

1 stop15h 30m

London Heathrow

Fri 9/10

08:40-23:58

1 stop20h 18m

£618

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 12/10

14:59-11:20

1 stop15h 21m

London Heathrow

Wed 21/10

11:45-23:44

2 stops16h 59m

£625

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 20/10

14:18-13:35

2 stops18h 17m

London Heathrow

Tue 27/10

11:25-11:31

2 stops28h 06m

£634

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Sun 15/11

11:45-09:30

1 stop17h 45m

London Heathrow

Wed 18/11

09:20-00:25

1 stop19h 05m

£634

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Mon 28/12

16:19-07:05

1 stop34h 46m

London Heathrow

Fri 8/1

08:55-23:55

2 stops19h 00m

£636

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LCY London City

SJULCY

San Juan Luis Munoz Marin Intl

Tue 20/10

16:29-15:15

2 stops17h 46m

London City

Tue 27/10

08:50-09:46

2 stops28h 56m

£650

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 15/12

07:00-06:20

1 stop19h 20m

London Heathrow

Wed 23/12

10:50-21:10

1 stop14h 20m

£659

San JuanLondon

SJU San Juan Luis Munoz Marin Intl - LHR London Heathrow

SJULHR

San Juan Luis Munoz Marin Intl

Tue 22/9

14:59-13:15

1 stop17h 16m

London Heathrow

Sat 3/10

09:40-22:19

2 stops17h 39m

£677

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 55 resultsSorted by cheapest first

...

Best time to book a flight from Luis Munoz Marin Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Luis Munoz Marin Intl with our price prediction graph.

SJU-LON

SJU-LGW

SJU-LHR

SJU-SEN

SJU-LCY

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Juan Luis Munoz Marin Intl Airport to London

SJU-LON

SJU-LGW

SJU-LHR

SJU-SEN

SJU-LCY

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to London?

Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to London (average of £459). Flying from San Juan Luis Munoz Marin Intl Airport to London in June is currently the most expensive (average of £846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost for a return flight from San Juan Luis Munoz Marin Intl Airport to London?

Airfare is below average for this route at the moment.

San Juan Luis Munoz Marin Intl Airport to London flights typically cost between £568 and £684 in November.
The cheapest return price found within the last 5 days was £477 on Multiple Airlines (4 Nov–10 Nov).

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to London?

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from San Juan Luis Munoz Marin Intl Airport to London?
JetBlue, Delta, and British Airways can get you from San Juan Luis Munoz Marin Intl Airport to London in just under 15h 21m. Your travel time can differ by up to 3h 57m. The distance from San Juan Luis Munoz Marin Intl Airport to London is about 4179 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to London?
Most travelers choose San Juan Luis Munoz Marin Intl - London Heathrow, San Juan Luis Munoz Marin Intl - London Gatwick or San Juan Luis Munoz Marin Intl - London City when deciding on the best route from San Juan Luis Munoz Marin Intl Airport to London.
Can I find deals for flights from Luis Munoz Marin Intl to London that include hotel bookings?
Yes. In addition to deals on Luis Munoz Marin Intl to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Luis Munoz Marin Intl to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Luis Munoz Marin Intl to London.
Can I find deals for business class flights from Luis Munoz Marin Intl to London?
Yes. Cheapflights offers flight deals from Luis Munoz Marin Intl to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to London?
Currently, January is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to London (average of £459). Flying from San Juan Luis Munoz Marin Intl Airport to London in June is currently the most expensive (average of £846). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Luis Munoz Marin Intl to London. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Luis Munoz Marin Intl to London?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to London from Luis Munoz Marin Intl.

Can Cheapflights find flights from Luis Munoz Marin Intl to London with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Luis Munoz Marin Intl to London flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Luis Munoz Marin Intl to London become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to London from Luis Munoz Marin Intl today and book when prices fit your budget.

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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £195

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Luis Munoz Marin Intl to London

Cheapest flights from Luis Munoz Marin Intl to LondonExplore the most affordable flight options available from Luis Munoz Marin Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 August 2026.

Explore the most affordable flight options available from Luis Munoz Marin Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 August 2026.

Best flights from Luis Munoz Marin Intl to LondonDiscover carefully curated flight deals from Luis Munoz Marin Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 August 2026.

Discover carefully curated flight deals from Luis Munoz Marin Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 August 2026.

Last-minute flights from Luis Munoz Marin Intl to LondonDiscover last-minute flight deals from Luis Munoz Marin Intl to London. Data last updated 24 August 2026 and is based on user searches.

Discover last-minute flight deals from Luis Munoz Marin Intl to London. Data last updated 24 August 2026 and is based on user searches.

One-way flights from Luis Munoz Marin Intl to LondonSearch for one-way flight options from Luis Munoz Marin Intl to London. Find affordable one-way fares based on user searches. Data last updated 24 August 2026.

Search for one-way flight options from Luis Munoz Marin Intl to London. Find affordable one-way fares based on user searches. Data last updated 24 August 2026.

Find flight deals from Luis Munoz Marin Intl to London

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Cheapflights Fare Finder

Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to London that are best for you.

Best time to book a flight from Luis Munoz Marin Intl to London

Have a flexible travel schedule? Discover the best time to fly to London from Luis Munoz Marin Intl with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to London?

How much does it cost for a return flight from San Juan Luis Munoz Marin Intl Airport to London?

Airfare is below average for this route at the moment.

San Juan Luis Munoz Marin Intl Airport to London flights typically cost between £568 and £684 in November.The cheapest return price found within the last 5 days was £477 on Multiple Airlines (4 Nov–10 Nov).

How far ahead should I book a flight from San Juan Luis Munoz Marin Intl Airport to London?

Booking 79 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan Luis Munoz Marin Intl Airport to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Related info for your journey

How long is the flight from San Juan Luis Munoz Marin Intl Airport to London?

What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to London?

Can I find deals for flights from Luis Munoz Marin Intl to London that include hotel bookings?

How can I find direct flights from Luis Munoz Marin Intl to London?

Can I find deals for business class flights from Luis Munoz Marin Intl to London?

What is the cheapest month to book a flight from San Juan Luis Munoz Marin Intl Airport to London?

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Alternative routes for Luis Munoz Marin Intl to London

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Other flights to London

Explore flights to London departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 24 August 2026.

Luis Munoz Marin Intl and London flights

Browse other Luis Munoz Marin Intl and London flight options. Last updated on 24 August 2026.

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How does Cheapflights help users find flights from Luis Munoz Marin Intl to London?

Why should you use Cheapflights to find cheap flight tickets from Luis Munoz Marin Intl to London?

Can Cheapflights find flights from Luis Munoz Marin Intl to London with no change fees?

Can Cheapflights notify me if prices for flights from Luis Munoz Marin Intl to London become cheaper?

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Cheapest flights from Luis Munoz Marin Intl to London
Explore the most affordable flight options available from Luis Munoz Marin Intl to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 August 2026.

Best flights from Luis Munoz Marin Intl to London
Discover carefully curated flight deals from Luis Munoz Marin Intl to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 24 August 2026.

Last-minute flights from Luis Munoz Marin Intl to London
Discover last-minute flight deals from Luis Munoz Marin Intl to London. Data last updated 24 August 2026 and is based on user searches.

One-way flights from Luis Munoz Marin Intl to London
Search for one-way flight options from Luis Munoz Marin Intl to London. Find affordable one-way fares based on user searches. Data last updated 24 August 2026.

San Juan Luis Munoz Marin Intl Airport to London flights typically cost between £568 and £684 in November.
The cheapest return price found within the last 5 days was £477 on Multiple Airlines (4 Nov–10 Nov).