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United Airlines flights from London Heathrow Airport to Cancún (LHR - CUN)

LHR — CUN
24 Aug — 31 Aug1
1 adult
1 adult, Economy, 0 bags

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Cheapest United Airlines flights from Heathrow to Cancún
Explore the most affordable United Airlines flight options available from Heathrow to Cancún. Find the lowest fares with prices last updated on 25 July 2026.

Mon 24/810:00
LHR
-
CUN
1 stop15h 19m
United Airlines
Sun 13/915:46
CUN
-
LHR
1 stop22h 54m
United Airlines
Deal found 24/7£787
Sat 22/807:45
LHR
-
CUN
1 stop15h 00m
United Airlines
Sun 13/915:46
CUN
-
LHR
1 stop22h 54m
United Airlines
Deal found 24/7£817
Mon 31/810:00
LHR
-
CUN
1 stop15h 19m
United Airlines
Mon 7/915:43
CUN
-
LHR
1 stop14h 42m
United Airlines
Deal found 25/7£828

  • How do most travelers feel about United Airlines?

    Cheapflights users who travel with United Airlines (a popular airline from London Heathrow Airport to Cancún) have rated them a 7.4/10. This rating comes from 10,034 reviews. If you are looking to travel LHR-CUN, search your dates above.

  • Can I get a flight from London Heathrow Airport to Cancún on United Airlines for under £901?

    There are 5 flights available on United Airlines from London Heathrow Airport to Cancún for under £901. These prices can change based on many factors including date and time. To find LHR-CUN flight prices for your dates, click here.

United Airlines flights from Heathrow to Cancún in 2026

Find detailed information about United Airlines flights from Heathrow to Cancún. Explore the options provided by United Airlines to plan your journey from Heathrow to Cancún. Data last updated 25 July 2026.

One-way from

£434

Return from

£639

Popular in

July

Cheapest in

March

Average price (all airlines)

£862
United Airlines
  • United Airlines
  • 8/1
  • 2 total stops
  • 29h 55m total
  • London to Cancún
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United Airlines
  • United Airlines
  • 29/12-12/1
  • 3 total stops
  • 82h 56m total
  • London to Cancún
Search Deals
Highest demand for flights from London Heathrow to Cancun; 11% potential price increase.
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Best time to find cheap flights from London Heathrow to Cancun; 2% potential price drop.
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Average price for all London Heathrow to Cancun flights (one-way and round-trip).
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Which month is the cheapest to fly Economy class from London Heathrow Airport to Cancún?

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

Best time to book a flight from Heathrow to Cancún

Have a flexible travel schedule? Discover the best time to fly to Cancún 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 Cancún on another airline

Consider alternative airlines that service the Cancún area. Flight routes are based on user searches made on Cheapflights and were last updated on 25 July 2026.
Virgin Atlantic flights from London Heathrow to Cancun
British Airways flights from London Heathrow to Cancun

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 25 July 2026.
United Airlines
7.4
Good
10,000 reviews
Check prices
Overview

Comfort

7.3

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

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