Flights
Insights
FAQs

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

LON — SJU
24 Apr — 1 May1
1 adult
1 adult, Economy, 0 bags

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

Finnair flights from London to Luis Munoz Marin Intl in 2026

Find detailed information about Finnair flights from London to Luis Munoz Marin Intl. Explore the options provided by Finnair to plan your journey from London to Luis Munoz Marin Intl. Data last updated 25 March 2026.

Popular in

July

Cheapest in

September

Average price (all airlines)

£678
Highest demand for flights from London to San Juan Luis Munoz Marin Intl; 12% potential price increase.
Search Deals
Best time to find cheap flights from London to San Juan Luis Munoz Marin Intl; 4% potential price drop.
Search Deals
Average price for all London to San Juan Luis Munoz Marin Intl flights (one-way and round-trip).
Search Deals

  • How do most travelers feel about Finnair?

    The average rating from 1,374 Finnair reviews by Cheapflights users is 7.7 (out of a maximum rating of 10). If you are considering flying LON-SJU with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to San Juan Luis Munoz Marin Intl Airport with Finnair.

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.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly from London to Luis Munoz Marin Intl on another airline

Consider alternative airlines that service the Luis Munoz Marin Intl area. Flight routes are based on user searches made on Cheapflights and were last updated on 25 March 2026.
JetBlue flights from London to San Juan Luis Munoz Marin Intl

See what others are saying about Finnair

Read reviews and see what other travellers are saying about their experiences with Finnair. Get insights from real passengers regarding the airline's services, customer satisfaction, and overall travel experience. Use these reviews to inform your decision when choosing Finnair for your next flight. Reviews last updated 25 March 2026.
Finnair
7.7
Good
1,374 reviews
Check prices
Overview

Boarding

7.7

Food

6.7

Entertainment

6.9

Crew

8.2

Comfort

7.5

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.