United Airlines flights from London Heathrow Airport to Cancún (LHR - CUN)
LHR — CUN
21 Oct — 28 Oct1
Return
1 adult
Economy
Return
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 21 September 2026.
Thu 29/1016:20 -
1 stop28h 35m
Sat 7/1112:35 -
2 stops17h 40m
Deal found 20/9£614
Tue 29/918:00 -
1 stop25h 39m
Fri 9/1016:18 -
2 stops23h 07m
Deal found 19/9£614
Thu 1/1013:40 -
1 stop28h 22m
Thu 15/1016:18 -
1 stop32h 37m
Deal found 19/9£615
Best United Airlines flights from Heathrow to Cancún
Discover carefully curated United Airlines flight deals from Heathrow to Cancún that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 21 September 2026.
Tue 3/1110:05 -
1 stop26h 08m
Tue 10/1112:35 -
1 stop13h 05m
Deal found 19/9£614
Thu 1/1016:40 -
2 stops25h 22m
Tue 13/1007:51 -
2 stops19h 29m
Deal found 18/9£614
Fri 2/1010:00 -
1 stop15h 19m
Sun 11/1007:51 -
1 stop21h 44m
Deal found 19/9£614
Last-minute United Airlines flights from Heathrow to Cancún
Discover last-minute United Airlines flight deals from Heathrow to Cancún. Data last updated 21 September 2026 and is based on user searches.
Thu 29/1016:20 -
1 stop28h 35m
Sat 7/1112:35 -
2 stops17h 40m
Deal found 20/9£614
Tue 29/918:00 -
1 stop25h 39m
Fri 9/1016:18 -
2 stops23h 07m
Deal found 19/9£614
Thu 1/1013:40 -
1 stop28h 22m
Thu 15/1016:18 -
1 stop32h 37m
Deal found 19/9£615
One-way United Airlines flights to Cancún
Search for one-way United Airlines flight options to Cancún. Find affordable one-way fares based on user searches. Data last updated 21 September 2026.
Fri 30/1013:30 -
2 stops28h 29m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 20/9£408
Fri 6/1112:00 -
2 stops28h 25m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 18/9£430
Sun 1/1116:20 -
2 stops25h 03m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£432
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 10,220 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 £672?
There are 9 flights available on United Airlines from London Heathrow Airport to Cancún for under £672. 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 21 September 2026.
Plan your trip to Cancún by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Cancún ranges from 29.0 - 282.0 inches per month. October is typically the wettest month, when rainfall can reach 282.0 mm. April is typically the driest time to visit Cancún when rainfall is around 29.0 mm.
Temperature in Cancún by month
Plan your trip to Cancún by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Cancún, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 30.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 24.0 C).
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.
LHR-CUN
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 21 September 2026.
Browse through other United Airlines flights departing from Heathrow. Flight routes are based on user searches made on Cheapflights and were last updated on 21 September 2026.
If Cancún is not for you, choose from these other destinations located in North America. Flight routes are based on user searches made on Cheapflights and were last updated on 21 September 2026.
Browse through some of the most popular routes that United Airlines offers at this time. Flights are based on user searches made on Cheapflights and were last updated on 21 September 2026.
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 21 September 2026.
The flight was on time and boardi g was very organized and timely. Snacks are awful and having one little glass of juice was terrible. Fortunately, I had my water to keep me hydrated.
10.0
Wonderful|Aug 2026
Staff friendly, good boarding experience
4.0
Mediocre|Aug 2026
Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
2.0
Poor|Aug 2026
I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
6.0
Okay|Jul 2026
The crew aboard the plane were not very friendly. They definitely acted like it was a chore to be there.
1 out of 3334
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