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

LHR — CUN
1 Jun — 8 Jun1
1 adult
1 adult, Economy, 0 bags

Cheapflights users flying from London to Cancún on United Airlines typically fly into Cancun and depart from London Heathrow. Select your dates above for pricing.

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 2 May 2026.

One-way from

£495

Return from

£737

Popular in

December

Cheapest in

September

Average price (all airlines)

£573
United Airlines
  • United Airlines
  • 11/9
  • 2 total stops
  • 29h 11m total
  • London to Cancún
United Airlines
  • United Airlines
  • 16/9-23/9
  • 3 total stops
  • 39h 26m total
  • London to Cancún
Highest demand for flights from London Heathrow to Cancun; 1% potential price increase.
Best time to find cheap flights from London Heathrow to Cancun; 2% potential price drop.
Average price for all London Heathrow to Cancun flights (one-way and round-trip).
  • 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 9,679 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 £588?

    There are 3 flights available on United Airlines from London Heathrow Airport to Cancún for under £588. These prices can change based on many factors including date and time. To find LHR-CUN flight prices for your dates, click here.

Find United Airlines flight deals from Heathrow to Cancún

Enter your travel dates to find the best prices.

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 2 May 2026.

Tue 26/508:00
LHR
-
CUN
2 stops17h 19m
United Airlines
Tue 9/607:51
CUN
-
LHR
2 stops18h 29m
United Airlines
Deal found 27/4£822
Thu 28/508:00
LHR
-
CUN
2 stops17h 19m
United Airlines
Thu 4/611:14
CUN
-
LHR
1 stop13h 41m
United Airlines
Deal found 30/4£827
Sat 30/507:45
LHR
-
CUN
2 stops17h 34m
United Airlines
Sun 7/608:45
CUN
-
LHR
2 stops16h 10m
United Airlines
Deal found 28/4£881

How far ahead should I book Economy class tickets from London Heathrow Airport to Cancún?

Booking 28 days in advance of your planned departure date is, on average, the best time to get the best price for Economy class flights from London Heathrow Airport to Cancún.

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 February. 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 2 May 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 2 May 2026.
United Airlines
7.4
Good
9,679 reviews
Overview

Boarding

7.7

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.6

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