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Cheap flights from London Heathrow Airport to Cancún from £299

LHR — CUN
10 Oct — 17 Oct1
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 31/1010:05 -
1 stop15h 34m
Mon 30/1113:37 -
1 stop17h 28m
Deal found 8/9£489
Sat 19/916:25 -
1 stop23h 35m
Thu 1/1014:57 -
1 stop13h 53m
Deal found 9/9£491
Mon 28/915:40 -
1 stop25h 54m
Fri 23/1007:20 -
1 stop17h 00m
Deal found 9/9£491
Mon 16/1110:00 -
1 stop34h 05m
Sun 22/1121:20 -
Nonstop9h 05m
Deal found 8/9£493
Tue 13/1016:25 -
1 stop23h 32m
Wed 21/1014:09 -
1 stop12h 51m
Deal found 9/9£494
Thu 22/1014:25 -
1 stop26h 29m
Tue 10/1117:32 -
1 stop13h 33m
Deal found 9/9£495
Tue 24/1114:30 -
1 stop25h 16m
Tue 1/1213:21 -
1 stop12h 59m
Deal found 9/9£498
Sat 19/916:25 -
1 stop24h 44m
Sat 26/913:50 -
1 stop18h 35m
Deal found 8/9£504
Fri 2/1012:15 -
1 stop33h 10m
Fri 9/1012:45 -
1 stop14h 15m
Deal found 9/9£505
Sat 7/1111:45 -
1 stop29h 36m
Sat 14/1113:35 -
1 stop17h 25m
Deal found 9/9£506
Fri 4/1213:00 -
Nonstop11h 00m
Fri 11/1221:20 -
Nonstop9h 05m
Deal found 9/9£507
Tue 27/1011:15 -
1 stop29h 30m
Mon 16/1117:32 -
1 stop13h 08m
Deal found 9/9£511

Find flight deals from Heathrow to Cancún

Round-trip from

£489

One-way from

£299

Popular in

July

Cheapest in

March

Average price

£586

Good round-trip deal

£614 or less
British Airways
  • British Airways
  • 31/10-30/11
  • 2 total stops
  • 33h 02m total
  • London to Cancún
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14/9-31/12
  • 14/9-31/12
  • 3 total stops
  • 27h 40m total
  • London to Cancún
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£69 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£11 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

Thu 29/10

11:30-17:45

1 stop35h 15m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£416

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sun 6/12

11:35-16:55

3 stops34h 20m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£432

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Thu 29/10

13:45-17:45

2 stops33h 00m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£441

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Mon 9/11

19:20-20:55

2 stops30h 35m

Cancun

Mon 16/11

13:42-07:45

1 stop13h 03m

£539

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Wed 9/12

17:25-21:17

2 stops32h 52m

Cancun

Wed 23/12

17:36-11:30

1 stop12h 54m

£544

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Wed 20/1

13:00-19:00

Nonstop11h 00m

Cancun

Tue 2/2

12:10-09:00

1 stop15h 50m

£567

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Fri 20/11

15:00-23:30

1 stop13h 30m

Cancun

Tue 24/11

18:10-11:50

1 stop36h 40m

£582

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sat 24/10

10:00-20:19

1 stop16h 19m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£585

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sun 28/2

13:00-19:00

Nonstop11h 00m

Cancun

Thu 11/3

11:01-11:40

1 stop19h 39m

£629

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Fri 30/10

13:00-19:00

Nonstop11h 00m

Cancun

Thu 12/11

12:13-06:25

1 stop13h 12m

£639

Flights are sorted by cheapest return flights first.

Deals found on 9/9

Showing 1-10 of 23 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 £553). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £855). 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 £514 and £633 in October.
The cheapest return price found within the last 5 days was £489 on British Airways (31 Oct–30 Nov).

Reviews of airlines servicing Cancún

Read through reviews of airlines operating flights from London Heathrow Airport to Cancún, such as United Airlines,Virgin Atlantic, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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
10,194 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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
12,045 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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
11,608 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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
8,210 reviews
United Airlines
7.4
Good
10,194 reviews
Check prices

Food

6.7

Entertainment

7.1

Boarding

7.7

Overall

7.4

Comfort

7.3

Crew

8.1

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 14 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 13h 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 £252. Additional return tickets that might be worth considering are offered by TUI Airways and Air Canada, with the lowest prices starting at £346 and £448, 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 £522. On average you can expect to pay £687. The most popular route, (London Heathrow - Cancun), can usually be booked for £452.

  • 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 £553). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £855). 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£252Average£675FlexibilityNo cancel feeOn-time75%
Search KLM flights
TUI AirwaysCheapest£346Average£654FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
Air CanadaCheapest£448Average£663FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
Virgin AtlanticCheapest£455Average£619FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£478Average£662FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£479Average£729FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
LufthansaCheapest£484Average£757FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest£491Average£590FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
FinnairCheapest£495Average£809FlexibilityNo cancel feeOn-time76%
Search Finnair flights
Air FranceCheapest£498Average£781FlexibilityNo cancel feeOn-time77%
Search Air France 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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