United Airlines flights from London Heathrow Airport to San José (LHR - SJO)

LHR — SJO
8 Jul — 15 Jul1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Heathrow to San José
Explore the most affordable United Airlines flight options available from Heathrow to San José. Find the lowest fares with prices last updated on 8 June 2026.

Wed 24/607:25
LHR
-
SJO
2 stops22h 14m
United Airlines
Mon 6/700:30
SJO
-
LHR
2 stops26h 10m
United Airlines
Deal found 7/6£711
Mon 6/707:30
LHR
-
SJO
2 stops33h 41m
United Airlines
Tue 14/707:15
SJO
-
LHR
1 stop19h 05m
United Airlines
Deal found 7/6£712
Wed 24/607:25
LHR
-
SJO
2 stops22h 14m
United Airlines
Fri 7/800:30
SJO
-
LHR
2 stops23h 45m
United Airlines
Deal found 6/6£714
  • How do most travelers feel about United Airlines?

    Cheapflights users who travel with United Airlines (a popular airline from London Heathrow Airport to San José) have rated them a 7.4/10. This rating comes from 9,781 reviews. If you are looking to travel LHR-SJO, search your dates above.

United Airlines flights from Heathrow to San José in 2026

Find detailed information about United Airlines flights from Heathrow to San José. Explore the options provided by United Airlines to plan your journey from Heathrow to San José. Data last updated 8 June 2026.

One-way from

£903

Return from

£711

Popular in

December

Cheapest in

November

Average price (all airlines)

£676
United Airlines
  • United Airlines
  • 11/7
  • 2 total stops
  • 20h 29m total
  • London to San José
United Airlines
  • United Airlines
  • 24/6-6/7
  • 4 total stops
  • 48h 24m total
  • London to San José
Highest demand for flights from London Heathrow to San José Juan Santamaria Intl; 2% potential price increase.
Best time to find cheap flights from London Heathrow to San José Juan Santamaria Intl; 3% potential price drop.
Average price for all London Heathrow to San José Juan Santamaria Intl flights (one-way and round-trip).

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 64 days before departure. On average, fares are higher if you book 34 days before departure.

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

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

Best time to book a flight from Heathrow to San José

Have a flexible travel schedule? Discover the best time to fly to San José from Heathrow 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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Fly from Heathrow to San José on another airline

Consider alternative airlines that service the San José area. Flight routes are based on user searches made on Cheapflights and were last updated on 8 June 2026.

See what others are saying about United Airlines

Read reviews and see what other travellers are saying about their experiences with United Airlines. 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 United Airlines for your next flight. Reviews last updated 8 June 2026.
United Airlines
7.4
Good
9,785 reviews
Overview

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Food

6.6

Crew

8.1

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