JetBlue flights from London to San Juan Luis Munoz Marin Intl Airport (LON - SJU)

LON — SJU
18 Apr — 25 Apr1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to San Juan on JetBlue typically fly into San Juan Luis Munoz Marin Intl and depart from London Heathrow. Select your dates above for pricing.

JetBlue flights from London to Luis Munoz Marin Intl in 2026

Find detailed information about JetBlue flights from London to Luis Munoz Marin Intl. Explore the options provided by JetBlue to plan your journey from London to Luis Munoz Marin Intl. Data last updated 19 March 2026.

One-way from

£431

Return from

£557

Popular in

July

Cheapest in

September

Average price (all airlines)

£681
JetBlue
  • JetBlue
  • 30/5
  • 1 total stop
  • 14h 22m total
  • London to San Juan
JetBlue
  • JetBlue
  • 5/5-12/5
  • 2 total stops
  • 42h 57m total
  • London to San Juan
Highest demand for flights from London to San Juan Luis Munoz Marin Intl; 12% potential price increase.
Best time to find cheap flights from London to San Juan Luis Munoz Marin Intl; 4% potential price drop.
Average price for all London to San Juan Luis Munoz Marin Intl flights (one-way and round-trip).
  • How do most travelers feel about JetBlue?

    2,909 Cheapflights users have left reviews for JetBlue and have rated the airline 7.2/10. If you are looking to travel from London to San Juan Luis Munoz Marin Intl Airport on JetBlue, input your dates in the form above for our best prices!

  • Can I get a flight from London to San Juan Luis Munoz Marin Intl Airport on JetBlue for under £750?

    JetBlue offers 6 flights from London to San Juan Luis Munoz Marin Intl Airport for under £750. Prices vary by date and time. To see all prices and select your dates, click here.

Find JetBlue flight deals from London to Luis Munoz Marin Intl

Enter your travel dates to find the best prices.

Cheapest JetBlue flights from London to Luis Munoz Marin Intl
Explore the most affordable JetBlue flight options available from London to Luis Munoz Marin Intl. Find the lowest fares with prices last updated on 19 March 2026.

Tue 14/408:40
LHR
-
SJU
1 stop18h 32m
JetBlue
Tue 21/419:58
SJU
-
LHR
1 stop19h 47m
JetBlue
Deal found 15/3£561
Mon 13/408:15
LHR
-
SJU
1 stop20h 52m
JetBlue
Mon 20/405:01
SJU
-
LHR
1 stop20h 29m
JetBlue
Deal found 14/3£563
Wed 29/408:15
LHR
-
SJU
1 stop17h 45m
JetBlue
Wed 6/519:15
SJU
-
LHR
1 stop20h 30m
JetBlue
Deal found 15/3£575

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

Use this chart to determine the optimal time to book a return flight from London to Luis Munoz Marin Intl. Price data was last updated on 13 March 2026.

Booking with JetBlue 44 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to San Juan Luis Munoz Marin Intl Airport. 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 London to San Juan Luis Munoz Marin Intl Airport with JetBlue?

Currently, the most affordable month to book a JetBlue flight from London to San Juan Luis Munoz Marin Intl Airport in July, with an average price of £185. Conversely, traveling with JetBlue from London to San Juan Luis Munoz Marin Intl Airport in April will be the most expensive, with an average cost of £531. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport ranges from 55.0 - 156.0 inches per month. November is typically the wettest month, when rainfall can reach 156.0 mm. March is typically the driest time to visit San Juan Luis Munoz Marin Intl Airport when rainfall is around 55.0 mm.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 28.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 25.0 C).

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

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from London 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.

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Other JetBlue flights from London

Browse through other JetBlue flights departing from London. Flight routes are based on user searches made on Cheapflights and were last updated on 19 March 2026.

See what others are saying about JetBlue

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JetBlue
7.2
Good
2,907 reviews
Overview

Comfort

7.5

Entertainment

7.2

Food

6.6

Boarding

7.4

Crew

8.0

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