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Cancún

$391+ Cheap flights from Heathrow (LHR) to Cancún (CUN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CUN
May 30 — Jun 61
Sat 5/30
Sat 6/6
1 adult, Economy
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Cheap flight deals from Heathrow to Cancún

Cheapest flights from Heathrow to Cancún
Explore the most affordable flight options available from Heathrow to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.

This oojo deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:10 pm
LHR
-
CUN
1 stop12h 40m
Aer Lingus
Thu 11/199:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/27$758
This oojo deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:45 pm
LHR
-
CUN
1 stop30h 05m
Aer Lingus
Thu 11/129:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/27$808
This Aer Lingus deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/37:50 am
LHR
-
CUN
1 stop17h 00m
Aer Lingus
Tue 1/269:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/29$811
This Justfly.com deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2412:10 pm
LHR
-
CUN
1 stop12h 40m
Aer Lingus
Tue 12/19:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/30$812
This Aer Lingus deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/812:10 pm
LHR
-
CUN
1 stop12h 40m
Aer Lingus
Tue 1/199:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/28$813
This Aer Lingus deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/149:50 am
LHR
-
CUN
1 stop15h 00m
Aer Lingus
Tue 11/179:35 pm
CUN
-
LHR
1 stop13h 00m
Aer Lingus
Deal found 4/29$851
This KLM deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:30 am
LHR
-
CUN
1 stop13h 35m
Multiple Airlines
Thu 1/288:20 pm
CUN
-
LHR
1 stop15h 15m
Multiple Airlines
Deal found 4/30$863
This Justfly.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/285:45 pm
LHR
-
CUN
1 stop31h 05m
Multiple Airlines
Wed 11/1811:36 am
CUN
-
LHR
1 stop19h 29m
Multiple Airlines
Deal found 4/27$869

Find flight deals from Heathrow to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Cancún (CUN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$899
(American Airlines)

One-way from

$391
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$987
Provider with most accurate pricing for London Heathrow-Cancun flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Heathrow-Cancun flights.
Search Deals
From London Heathrow to Cancun
Search Deals
One-way flight from London Heathrow to Cancun
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Heathrow to Cancún that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Cancún that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 6/9

10:05 pm-11:35 am

1 stop19h 30m

Cancun

Tue 6/16

4:50 pm-3:35 pm

1 stop16h 45m

$923

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Thu 6/4

9:55 am-8:16 pm

2 stops16h 21m

Cancun

Mon 6/8

12:50 pm-8:50 am

1 stop14h 00m

$1,038
Quickest round-trip

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Mon 7/6

10:00 am-7:19 pm

1 stop15h 19m

Cancun

Mon 7/20

4:18 pm-10:40 am

1 stop12h 22m

$1,118

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Thu 6/4

6:30 am-8:16 pm

2 stops19h 46m

Cancun

Thu 6/18

8:00 am-7:55 am

2 stops17h 55m

$1,119

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 6/3

9:55 am-8:16 pm

2 stops16h 21m

Cancun

Mon 6/15

8:00 am-9:50 am

2 stops19h 50m

$1,119

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Thu 6/4

6:30 am-8:16 pm

2 stops19h 46m

Cancun

Mon 6/8

8:00 am-7:10 am

2 stops17h 10m

$1,120

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Mon 7/6

6:55 pm-2:36 pm

2 stops25h 41m

Cancun

Mon 7/20

12:30 pm-1:05 pm

2 stops18h 35m

$1,141

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 7/14

11:15 am-8:15 pm

1 stop15h 00m

Cancun

Thu 9/3

1:30 pm-10:40 am

1 stop15h 10m

$1,141
Cheapest one-way

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 5/6

8:50 pm-5:40 pm

3 stops50h 50m

$498
Quickest one-way

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Mon 5/18

10:05 pm-11:35 am

1 stop19h 30m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on London Heathrow Airport-Cancún flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Cancún flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Cancún flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Heathrow Airport-Cancún flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Cancún flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 round-trip 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.

Cheapflights Insights

Everything you need to know about your flight from London Heathrow Airport to Cancún

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

The best time to book flights from London Heathrow Airport to Cancún is 84 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from London Heathrow Airport to Cancún?

Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of $728). Flying from London Heathrow Airport to Cancún in December is currently the most expensive (average of $1,155). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from London Heathrow Airport to Cancún?

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Cancún. Reviews last updated April 30, 2026.
Read reviews from past customers who have flown United Airlines,Virgin Atlantic, andAmerican Airlines from London Heathrow Airport to Cancún. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,678 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

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.
United Airlines
7.4
Good
9,678 reviews
United Airlines
7.4
Good
9,678 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

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.
Virgin Atlantic
7.4
Good
688 reviews
United Airlines
7.4
Good
9,678 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

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.
American Airlines
7.1
Good
11,684 reviews
United Airlines
7.4
Good
9,678 reviews

Entertainment

7.1

Boarding

7.7

Crew

8.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

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.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Cancún. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Cancún from London Heathrow?

    Cancun (CUN), located 8.9 mi from the city center, is the airport you fly into when you book flights from London Heathrow to Cancún. 3 airlines have flights to Cancun from London Heathrow on a regular basis. Booking flights from London Heathrow to Cancun should not be difficult; the airport handles an average of 0 inbound flights from London Heathrow per day.

  • How long is the flight from London Heathrow Airport to Cancún?

    Departing from London Heathrow Airport to Cancún will take you 15h 19m. There are 4938 mi between London Heathrow Airport and Cancún. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from London Heathrow Airport to Cancún round-trip?

    Currently priced at $622, American Airlines will fly you from London Heathrow Airport to Cancún and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Virgin Atlantic and United Airlines - these airlines can fly you to your destination from $647 and $664, respectively. You may be able to fly from London Heathrow Airport to Cancún for 29% less than the average price by searching for these airlines.

  • Can I find deals for flights from Heathrow to Cancún that include hotel bookings?

    Yes. In addition to deals on Heathrow to Cancún flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Heathrow to Cancún?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Heathrow to Cancún.

  • Can I find deals for business class flights from Heathrow to Cancún?

    Yes. Cheapflights offers flight deals from Heathrow to Cancún by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Heathrow Airport to Cancún?

    Currently, September is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of $728). Flying from London Heathrow Airport to Cancún in December is currently the most expensive (average of $1,155). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Puerto Aventuras
Punta Sam
Holbox

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Heathrow to Cancún

See prices for flight routes from nearby airports that may be better suited for you.
Gatwick to Cancún flights

Top 3 airlines flying from Heathrow to Cancún

Discover the top 3 airlines that operate flights from Heathrow to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$622Average$715FlexibilityNo cancel feeOn-time71%
Virgin AtlanticCheapest$647Average$1,054FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$664Average$1,123FlexibilityNo cancel feeOn-time69%

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