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Cheap flights from San Juan Luis Munoz Marin Intl Airport to London from £212

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 1/8. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — LON
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from San Juan Luis Munoz Marin Intl to London are usually found in September or October, booked 83 days in advance, depart on a Wednesday or Tuesday and return on a Monday

Cheap flight deals from Luis Munoz Marin Intl to London

Discover tips and strategies to find the most affordable flight options for your journey from Luis Munoz Marin Intl (SJU) to London (LON). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 13 June 2025.

Round-trip from

£477

One-way from

£212

Popular in

June

Cheapest in

September

Average price

£798
JetBlue
  • JetBlue
  • 28/10-6/11
  • 2 total stops
  • 34h 11m total
  • San Juan to London
1/8
  • 1/8
  • 2 total stops
  • 30h 56m total
  • San Juan to London
Highest demand for flights based on searches. 16% potential increase in price (£86 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in June 2025

Find flight deals from Luis Munoz Marin Intl to London

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 13 June 2025.

Tue 28/1000:59SJU - LHR
1 stop15h 46mJetBlue
Thu 6/1112:20LHR - SJU
1 stop18h 25mJetBlue
Deal found 12/6£477
Wed 13/812:35SJU - LGW
1 stop16h 00mJetBlue
Wed 27/812:10LGW - SJU
1 stop18h 21mJetBlue
Deal found 13/6£484
Tue 2/913:36SJU - LHR
1 stop14h 49mIberia
Tue 9/910:50LHR - SJU
1 stop12h 40mIberia
Deal found 13/6£490
Sun 9/1107:25SJU - LGW
2 stops21h 35mAmerican Airlines
Thu 20/1111:20LGW - SJU
2 stops18h 50mAmerican Airlines
Deal found 12/6£495
Sun 9/1102:05SJU - LHR
1 stop15h 15mUnited Airlines
Wed 19/1107:30LHR - SJU
2 stops21h 06mUnited Airlines
Deal found 11/6£504
Wed 10/916:42SJU - LHR
1 stop15h 03mAmerican Airlines
Thu 18/907:45LHR - SJU
2 stops15h 50mAmerican Airlines
Deal found 11/6£511
Sun 24/814:55SJU - LHR
1 stop14h 15mLufthansa
Sun 7/906:30LHR - SJU
2 stops22h 27mLufthansa
Deal found 12/6£511
Sun 24/813:34SJU - LGW
1 stop15h 26mAir France
Sun 7/912:00LGW - SJU
1 stop16h 51mAir France
Deal found 12/6£518
Thu 21/801:05SJU - LHR
1 stop14h 35mAir Canada
Fri 5/912:00LHR - SJU
1 stop16h 57mAir Canada
Deal found 11/6£520
Fri 22/808:30SJU - LHR
1 stop20h 50mBritish Airways
Mon 1/920:35LHR - SJU
2 stops31h 14mBritish Airways
Deal found 12/6£528
Fri 3/1021:26SJU - LGW
1 stop27h 54mMultiple Airlines
Fri 17/1013:05LGW - SJU
1 stop17h 58mMultiple Airlines
Deal found 11/6£542
Fri 22/813:16SJU - LHR
1 stop12h 29mKLM
Mon 1/910:55LHR - SJU
1 stop17h 56mKLM
Deal found 11/6£554

Cheapflights Fare Finder

Customise your flight search to find flights from Luis Munoz Marin Intl to London 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, Cheapflights users made 858,174 searches. Data last updated 13 June 2025.
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

Luis Munoz Marin Intl

Fly to

London

Route

Depart

Return

Price

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 28/10

00:59-20:45

1 stop15h 46m

London Heathrow

Thu 6/11

12:20-02:45

1 stop18h 25m

£477

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Wed 13/8

12:35-09:35

1 stop16h 00m

London Gatwick

Wed 27/8

12:10-01:31

1 stop18h 21m

£484

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Wed 10/9

16:42-12:45

1 stop15h 03m

London Heathrow

Thu 18/9

06:15-18:35

1 stop17h 20m

£490

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Tue 5/8

06:04-09:25

1 stop22h 21m

London Heathrow

Wed 28/1

06:15-16:30

1 stop14h 15m

£491

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 9/11

07:25-09:00

2 stops21h 35m

London Gatwick

Thu 20/11

11:20-02:10

2 stops18h 50m

£495

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 9/11

02:05-21:20

1 stop15h 15m

London Heathrow

Wed 19/11

07:30-00:36

2 stops21h 06m

£504

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Sun 24/8

14:55-10:10

1 stop14h 15m

London Heathrow

Sun 7/9

06:30-23:57

2 stops22h 27m

£511

San JuanLondon

SJU - LGW

SJULGW

San Juan Luis Munoz Marin Intl

Sun 24/8

13:34-10:00

1 stop15h 26m

London Gatwick

Sun 7/9

12:00-23:51

1 stop16h 51m

£518

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Thu 21/8

01:05-20:40

1 stop14h 35m

London Heathrow

Fri 5/9

12:00-23:57

1 stop16h 57m

£520

San JuanLondon

SJU - LHR

SJULHR

San Juan Luis Munoz Marin Intl

Fri 22/8

08:30-10:20

1 stop20h 50m

London Heathrow

Mon 1/9

20:35-22:49

2 stops31h 14m

£528

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 54 results
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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.
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

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

Use this chart to determine the optimal time to book a return flight from Luis Munoz Marin Intl to London. Price data was last updated on 9 June 2025.

Booking 44 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.

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 £112). Flying from San Juan Luis Munoz Marin Intl Airport to London in August is currently the most expensive (average of £164). 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.

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

Find hourly flight availability from Luis Munoz Marin Intl to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

A simple way to save on the total cost of your ticket is to fly from San Juan Luis Munoz Marin Intl Airport to London in the afternoon. If you’re flexible enough to do this you can expect to save up to 28% on your trip compared to booking a flight in the morning.

Rainfall in London by month

Plan your trip to London by taking into account the average rainfall totals by month.

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.

Temperature in London by month

Plan your trip to London by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated 13 June 2025.
Get a feel of what it's like to fly with Delta, KLM and Air France from San Juan to London by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
8.0
Very Good

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Overall

8.0

Entertainment

7.9

Comfort

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Luis Munoz Marin Intl to London. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What are the cheapest airlines flying from San Juan Luis Munoz Marin Intl Airport to London round-trip?

    JetBlue, at £477, was found to be the cheapest airline from San Juan Luis Munoz Marin Intl Airport to London.Alternate airlines flying return to your destination include American Airlines and Iberia. Users have found that JetBlue is 19% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from San Juan Luis Munoz Marin Intl Airport to London one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £236. Users have also found prices from £280 and £316 on Avianca and Virgin Atlantic, respectively.

  • 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?

    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 £112). Flying from San Juan Luis Munoz Marin Intl Airport to London in August is currently the most expensive (average of £164). 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.

See more FAQs

Travelling to a place near San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Deal
Hounslow
Croydon
Milton Keynes
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Dartford
Guildford

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Alternative routes for Luis Munoz Marin Intl to London

See prices for flight routes from nearby airports that may be better suited for you.

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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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