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Cheap flights from London Heathrow Airport to Cancún from £366

LHR — CUN
26 Oct — 2 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Heathrow to Cancún

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Cancún

Sat 14/1109:55 -
2 stops30h 03m
Thu 26/1113:37 -
1 stop17h 28m
Deal found 25/9£484
Wed 9/1208:20 -
1 stop17h 57m
Fri 25/1214:27 -
1 stop14h 33m
Deal found 24/9£485
Thu 10/1208:20 -
1 stop17h 57m
Thu 24/1215:31 -
1 stop15h 09m
Deal found 24/9£486
Wed 28/1008:20 -
1 stop16h 40m
Tue 3/1113:19 -
1 stop16h 06m
Deal found 26/9£488
Sat 31/1014:45 -
2 stops24h 51m
Mon 16/1107:00 -
1 stop18h 50m
Deal found 25/9£488
Thu 12/1109:55 -
1 stop31h 26m
Sat 21/1115:55 -
1 stop12h 20m
Deal found 22/9£491
Tue 13/1008:55 -
1 stop17h 05m
Wed 4/1117:32 -
1 stop33h 43m
Deal found 25/9£492
Fri 2/1014:45 -
1 stop26h 24m
Mon 5/1010:59 -
1 stop16h 06m
Deal found 25/9£493
Sat 31/1010:05 -
1 stop15h 34m
Thu 5/1111:58 -
1 stop15h 17m
Deal found 25/9£494
Fri 30/1008:20 -
1 stop16h 41m
Wed 18/1112:35 -
1 stop13h 05m
Deal found 24/9£494
Tue 13/1008:55 -
1 stop17h 05m
Wed 21/1012:35 -
1 stop13h 15m
Deal found 21/9£496

Find flight deals from Heathrow to Cancún

Round-trip from

£482

One-way from

£366

Popular in

July

Cheapest in

March

Average price

£611

Good round-trip deal

£545 or less
21/1-6/2
  • 21/1-6/2
  • 2 total stops
  • 32h 11m total
  • London to Cancún
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Air Canada
  • Air Canada
  • 15/11-31/12
  • 2 total stops
  • 22h 30m total
  • London to Cancún
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£70 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).
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Average for round-trip flights in September 2026
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Price to beat on a round-trip flight from London Heathrow to Cancun.
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Cheapflights Fare Finder

 
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 return flight

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Tue 8/12

11:30-16:10

1 stop33h 40m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£384

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sun 6/12

06:00-22:45

2 stops21h 45m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£386

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Tue 10/11

19:30-16:10

1 stop25h 40m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£388
Fastest return journey

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Mon 2/11

06:30-16:10

1 stop14h 40m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£408

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Thu 10/12

11:30-17:45

1 stop35h 15m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£420

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Fri 11/12

16:20-11:20

2 stops24h 00m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£435

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sat 7/11

06:00-18:25

1 stop17h 25m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£500

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Tue 10/11

06:00-21:14

2 stops20h 14m

Cancun

Tue 24/11

17:34-11:30

1 stop12h 56m

£551

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Thu 1/10

09:20-19:50

1 stop16h 30m

Cancun

Thu 15/10

12:35-07:15

1 stop12h 40m

£578

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sat 31/10

09:05-19:55

2 stops15h 50m

Cancun

Thu 5/11

13:35-07:50

1 stop13h 15m

£578

Flights are sorted by cheapest return flights first.

Deals found on 22/9

Showing 1-10 of 24 resultsSorted by cheapest first
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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

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?

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Cancún, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of £561). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £873). 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 for a return flight from London Heathrow Airport to Cancún?

Airfare is below average for this route at the moment.

London Heathrow Airport to Cancún flights typically cost between £622 and £861 in January.
The cheapest return price found within the last 5 days was £482 on Multiple Airlines (21 Jan–6 Feb).

Reviews of airlines servicing Cancún

Read through reviews of airlines operating flights from London Heathrow Airport to Cancún, such as United Airlines,Virgin Atlantic, andAir Canada. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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
10,248 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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
694 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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.
Air Canada
7.1
Good
11,686 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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
7.0
Good
12,097 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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.
British Airways
6.7
Okay
8,233 reviews
United Airlines
7.4
Good
10,248 reviews
Check prices

Crew

8.1

Comfort

7.3

Entertainment

7.1

Food

6.7

Overall

7.4

Boarding

7.7

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

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

    Cancun (CUN) is the airport you will fly into if you book a flight from London Heathrow to Cancún. You should not have trouble finding flights to Cancun from London Heathrow; the airport handles an average of 0 inbound flights from London Heathrow per day. You should also have plenty of airline options to choose from since 13 airlines have flights to the Cancún airport from London Heathrow. It is only a 8.9 mi journey from Cancun (CUN) to Cancún’s city center.

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

    Departing from London Heathrow Airport to Cancún will take you 16h 30m. Airlines will cover a distance of 4938 mi. This flight may include one or multiple stops.

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

    Flying on KLM is currently your cheapest option to Cancún, with prices starting at £258. Additional return tickets that might be worth considering are offered by Virgin Atlantic and Air Canada, with the lowest prices starting at £465 and £488, respectively. These flights start at 63% lower than the current average price 3 months from now.

  • What are the cheapest flights from London Heathrow Airport to Cancún?

    The cheapest flight price from London Heathrow Airport to Cancún is £411. On average you can expect to pay £1,448. The most popular route, (London Heathrow - Cancun), can usually be booked for £442.

  • 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 holiday 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, March is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of £561). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £873). 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

Travelling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
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Fly from Heathrow to Cancún on these airlines

Virgin Atlantic flights from London Heathrow to Cancun
United Airlines flights from London Heathrow to Cancun
British Airways flights from London Heathrow to Cancun

Top 10 airlines flying from Heathrow to Cancún

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£258Average£690FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£465Average£647FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapest£472Average£692FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£489Average£686FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£499Average£803FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£502Average£596FlexibilityNo cancel feeOn-timeN/A
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FinnairCheapest£506Average£845FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£509Average£794FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£511Average£825FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
LufthansaCheapest£533Average£802FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

How does Cheapflights help users find flights from Heathrow to Cancún?

Deals for Heathrow to Cancún flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Heathrow to Cancún?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Cancún from Heathrow.

Can Cheapflights find flights from Heathrow to Cancún with no change fees?

Certainly. Search results for flights to Cancún from Heathrow shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Heathrow to Cancún become cheaper?

Not ready to book yet? You can track prices for flights from Heathrow to Cancún on Cheapflights with our Price Alert feature and get notified when better prices are available.

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