United Airlines flights from London to San José (LON - SJO)

LON — SJO
17 Oct — 24 Oct1
1 adult
1 adult, Economy, 0 bags

Find United Airlines flight deals from London to San José

Enter your travel dates to find the best prices.

Cheapest United Airlines flights from London to San José

Thu 24/916:15 -
2 stops34h 22m
Thu 1/1008:45 -
2 stops42h 25m
Deal found 17/9£749
Wed 23/915:20 -
2 stops28h 01m
Thu 1/1008:45 -
1 stop19h 25m
Deal found 16/9£751
Sat 26/908:00 -
2 stops18h 37m
Sun 27/908:45 -
1 stop22h 25m
Deal found 15/9£752
  • How do most travelers feel about United Airlines?

    Cheapflights users who travel with United Airlines (a popular airline from London to San José) have rated them a 7.4/10. This rating comes from 10,214 reviews. If you are looking to travel LON-SJO, search your dates above.

United Airlines flights from London to San José in 2026

One-way from

£921

Return from

£675

Popular in

December

Cheapest in

May

Average price (all airlines)

£693
United Airlines
  • United Airlines
  • 28/12-31/12
  • 2 total stops
  • 29h 47m total
  • London to San José
United Airlines
  • United Airlines
  • 13/11-8/1
  • 4 total stops
  • 41h 03m total
  • London to San José
Highest demand for flights from London to San José Juan Santamaria Intl; 1% potential price increase.
Best time to find cheap flights from London to San José Juan Santamaria Intl; 1% potential price drop.
Average price for all London to San José Juan Santamaria Intl flights (one-way and round-trip).

Which month is the cheapest to fly Economy class from London to San José?

For Economy class flights, the cheapest month to fly this route is November. The most expensive months are December and July.

Rainfall in San José by month

In terms of precipitation, rainfall in San José ranges from 0.0 - 300.0 inches per month. September is typically the wettest month, when rainfall can reach 300.0 mm. February is typically the driest time to visit San José when rainfall is around 0.0 mm.

Temperature in San José by month

If weather is an important factor for your trip to San José, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 21.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 18.0 C).

When is the best time to book a flight to San José with United Airlines?

The best time to book a flight to San José with United Airlines is 76 days before departure. On average, fares are higher if you book 34 days before departure.

Best time to book a flight from London to San José

Have a flexible travel schedule? Discover the best time to fly to San José from London with our price prediction graph.
Estimated return price

Browse thousands of different options on Cheapflights for your next trip

Fly from London to San José on another airline

See what others are saying about United Airlines

United Airlines
7.4
Good
10,000 reviews
Overview

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Food

6.7

Crew

8.1

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.