Flights from London Heathrow to Cancun with United Airlines

Our cheapest offers for flights from London Heathrow to Cancun

Here you can compare cheap flights from London Heathrow (LHR) to Cancun (CUN) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Cancun. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
London Heathrow
Cancun
Outbound
31/10/25
1 Stopover (LAX)
UA0935, UA1276
29h 26min
Return
10/11/25
1 Stopover (YUL)
AC1883, AC0864
13h 55min
United Airlines ?
£531
London Heathrow
Cancun
Outbound
03/09/25
1 Stopover (IAH)
UA0879, UA1020
15h 20min
Return
10/09/25
1 Stopover (IAH)
UA1123, SN9079
14h 34min
United Airlines
£548
Prices based on recent searches, subject to last-minute changes
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Important flight information

Flight information: London Heathrow - Cancun

Cheapest outbound flight from £801.50
Outbound and return from £504.22
Distance 7960 km
Departure airport Airport London Heathrow (LHR)
Arrival airport Airport Cancun (CUN)
Destination country Flights to Mexico
Alternative routes to Mexico
Alternative flights to Cancun
Flight destinations with a similar price