Can I get a flight from London Heathrow Airport to Cancún on United Airlines for under £594?

There are 4 flights available on United Airlines from London Heathrow Airport to Cancún for under £594. These prices can change based on many factors including date and time. To find LHR-CUN flight prices for your dates, click here.

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.

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).

£467+ United Airlines Flights from Heathrow to Cancún

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

One-way from	£467
Return from	£543
Popular in	December
Cheapest in	March
Average price (all airlines)	£565

United Airlines
15/2
1 total stop
29h 10m total
London to Cancún

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United Airlines
13/2-20/2
2 total stops
41h 53m total
London to Cancún

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Highest demand for flights from London Heathrow to Cancun; 2% potential price increase.

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Best time to find cheap flights from London Heathrow to Cancun; 3% 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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Can I get a flight from London Heathrow Airport to Cancún on United Airlines for under £594?
There are 4 flights available on United Airlines from London Heathrow Airport to Cancún for under £594. 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 4 January 2026.

Fri 13/212:05LHR - CUN

1 stop28h 20mUnited Airlines

Fri 20/213:22CUN - LHR

1 stop13h 33mUnited Airlines

Deal found 3/1£543

Mon 16/212:05LHR - CUN

2 stops28h 20mUnited Airlines

Mon 23/215:07CUN - LHR

1 stop17h 23mUnited Airlines

Deal found 2/1£544

Fri 20/215:20LHR - CUN

1 stop30h 26mUnited Airlines

Sun 22/214:44CUN - LHR

2 stops19h 01mUnited Airlines

Deal found 2/1£573

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 4 January 2026.

Fri 6/213:45LHR - CUN

1 stop22h 28mUnited Airlines

Fri 20/216:45CUN - LHR

1 stop13h 30mUnited Airlines

Deal found 3/1£543

Sat 21/215:20LHR - CUN

1 stop21h 09mUnited Airlines

Sat 7/315:07CUN - LHR

1 stop17h 23mUnited Airlines

Deal found 4/1£543

Fri 13/212:05LHR - CUN

1 stop28h 20mUnited Airlines

Fri 20/212:28CUN - LHR

1 stop14h 02mUnited Airlines

Deal found 3/1£543

Last-minute United Airlines flights from Heathrow to Cancún
Discover last-minute United Airlines flight deals from Heathrow to Cancún. Data last updated 4 January 2026 and is based on user searches.

Fri 13/212:05LHR - CUN

1 stop28h 20mUnited Airlines

Fri 20/213:22CUN - LHR

1 stop13h 33mUnited Airlines

Deal found 3/1£543

Mon 16/212:05LHR - CUN

2 stops28h 20mUnited Airlines

Mon 23/215:07CUN - LHR

1 stop17h 23mUnited Airlines

Deal found 2/1£544

Fri 20/215:20LHR - CUN

1 stop30h 26mUnited Airlines

Sun 22/214:44CUN - LHR

2 stops19h 01mUnited Airlines

Deal found 2/1£573

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 4 January 2026.

Sun 15/212:05LHR - CUN

1 stop29h 10mUnited Airlines

Deal found 2/1£467

Wed 25/313:35LHR - CUN

2 stops27h 19mUnited Airlines

Deal found 3/1£484

Wed 10/613:05LHR - CUN

1 stop23h 36mUnited Airlines

Deal found 3/1£495

Travel insights for United Airlines flights from Heathrow to Cancún

Get recent, data-driven insights about United Airlines flights from Heathrow to Cancún including ideal travel times, pricing trends, and more.

Prices

How far ahead should I book a flight from London Heathrow Airport to Cancún with United Airlines?

Booking with United Airlines 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from London Heathrow Airport to Cancún. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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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See what others are saying about United Airlines

United Airlines

7.4

Good

9,139 reviews

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Recent reviews

10.0

Wonderful|Dec 2025

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

4.0

Mediocre|Dec 2025

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

8.0

Very Good|Dec 2025

It was good! It was uncomfortably warm.

8.0

Very Good|Dec 2025

It was good! The first 3/4 of the trip was uncomfortably cold. Only one option for lunch that I didn’t enjoy (vegetarian).

10.0

Wonderful|Dec 2025

Smooth flight from Austin to Newark. The crew was friendly.

1 out of 3047

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

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 4 January 2026.

One-way from

Return from

Popular in

Cheapest in

Average price (all airlines)

Can I get a flight from London Heathrow Airport to Cancún on United Airlines for under £594?

Find United Airlines flight deals from Heathrow to Cancún

Cheapest United Airlines flights from Heathrow to CancúnExplore the most affordable United Airlines flight options available from Heathrow to Cancún. Find the lowest fares with prices last updated on 4 January 2026.

Explore the most affordable United Airlines flight options available from Heathrow to Cancún. Find the lowest fares with prices last updated on 4 January 2026.

Travel insights for United Airlines flights from Heathrow to Cancún

Get recent, data-driven insights about United Airlines flights from Heathrow to Cancún including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Heathrow Airport to Cancún with United Airlines?

Rainfall in Cancún by month

Temperature in Cancún by month

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.

Browse thousands of different options on Cheapflights for your next trip

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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 4 January 2026.

See what others are saying about United Airlines

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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 4 January 2026.