Cheap flights from London Heathrow Airport to Cancún from £348

LHR — CUN
9 Dec — 16 Dec1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from London Heathrow to Cancun are usually found in March or September, booked 85 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Heathrow to Cancún

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Cancún

Mon 14/1208:55 -
1 stop17h 13m
Tue 22/1212:20 -
1 stop15h 40m
Deal found 6/11£513
Mon 14/1208:55 -
1 stop17h 13m
Thu 24/1213:51 -
1 stop12h 54m
Deal found 6/11£521
Sun 13/1208:55 -
1 stop17h 13m
Sun 10/112:20 -
1 stop13h 45m
Deal found 8/11£522
Sun 22/1108:55 -
1 stop17h 00m
Tue 24/1113:40 -
1 stop13h 10m
Deal found 7/11£528
Mon 14/1208:20 -
1 stop18h 00m
Mon 28/1213:31 -
1 stop15h 09m
Deal found 8/11£532
Sun 22/1108:55 -
1 stop17h 00m
Sat 5/1216:10 -
1 stop14h 30m
Deal found 5/11£536
Mon 7/1215:00 -
1 stop13h 30m
Sun 13/1210:30 -
1 stop15h 40m
Deal found 8/11£538
Thu 12/1111:10 -
1 stop17h 20m
Sat 21/1110:30 -
1 stop15h 40m
Deal found 5/11£539
Sun 22/1108:55 -
1 stop17h 00m
Thu 26/1116:06 -
1 stop14h 34m
Deal found 7/11£543
Thu 12/1113:00 -
1 stop14h 45m
Fri 27/1110:30 -
1 stop15h 40m
Deal found 5/11£545
Thu 12/1115:00 -
1 stop13h 30m
Mon 23/1110:30 -
1 stop15h 40m
Deal found 5/11£556

Find flight deals from Heathrow to Cancún

Round-trip from

£506

One-way from

£348

Popular in

December

Cheapest in

March

Average price

£621

Good round-trip deal

£651 or less

Good one-way deal

£952 or less
Air Canada
  • Air Canada
  • 21/1-4/2
  • 2 total stops
  • 32h 25m total
  • London to Cancún
10/4-31/12
  • 10/4-31/12
  • 2 total stops
  • 16h 35m total
  • London to Cancún
Highest demand for flights based on searches. 1% potential increase in price (£6 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£14 potential savings vs. average return price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from London Heathrow to Cancun.
Price to beat on a one-way flight from London Heathrow to Cancun.

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

Sun 10/1

10:00-13:34

1 stop32h 34m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£462

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sun 31/1

18:00-15:30

2 stops26h 30m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£462

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Thu 31/12

08:00-11:20

1 stop32h 20m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£559

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Tue 8/12

06:30-15:05

1 stop13h 35m

Cancun

Tue 22/12

21:00-18:20

1 stop16h 20m

£579

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Mon 28/12

16:20-10:29

1 stop23h 09m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£604

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Sun 28/2

06:20-18:25

1 stop17h 05m

Cancun

Mon 8/3

13:45-10:40

2 stops15h 55m

£634

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Thu 21/1

19:20-21:30

2 stops31h 10m

Cancun

Wed 27/1

17:45-11:40

1 stop12h 55m

£638

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Fri 25/12

12:05-17:50

1 stop34h 45m

Cancun

Wed 31/12

00:00-07:00

Nonstop0h 00m

£643

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Mon 14/12

06:20-21:08

2 stops19h 48m

Cancun

Sun 20/12

21:20-11:25

Nonstop9h 05m

£656

LondonCancún

LHR London Heathrow - CUN Cancun

LHRCUN

London Heathrow

Fri 1/1

13:00-19:01

Nonstop11h 01m

Cancun

Sun 17/1

21:20-11:25

Nonstop9h 05m

£657

Flights are sorted by cheapest return flights first.

Deals found on 7/11

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 84 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 £542). Flying from London Heathrow Airport to Cancún in December is currently the most expensive (average of £920). 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.

What is the cheapest time of day to fly from LHR to CUN?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London Heathrow Airport to Cancún as you normally would.

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 £577 and £756 in December.
The cheapest return price found within the last 5 days was £513 on Delta (14 Dec–22 Dec).

Reviews of airlines servicing Cancún

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

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Comfort

7.3

Food

6.9

Entertainment

7.5

Overall

7.5

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

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 13h 35m. 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 £255. Additional return tickets that might be worth considering are offered by TUI Airways and Virgin Atlantic, with the lowest prices starting at £350 and £460, respectively. These flights start at 64% 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 £564. On average you can expect to pay £1,105. The most popular route, (London Heathrow - Cancun), can usually be booked for £591.

  • 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 £542). Flying from London Heathrow Airport to Cancún in December is currently the most expensive (average of £920). 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

Browse thousands of different options on Cheapflights for your next trip

Fly from Heathrow to Cancún on these airlines

Top 10 airlines flying from Heathrow to Cancún

AirlineCheapestAverageFlexibilityOn-time
KLMCheapest£255Average£682FlexibilityNo cancel feeOn-time75%
Search KLM flights
TUI AirwaysCheapest£350Average£661FlexibilityNo cancel feeOn-timeN/A
Search TUI Airways flights
Virgin AtlanticCheapest£460Average£621FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air CanadaCheapest£482Average£755FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
American AirlinesCheapest£484Average£815FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
Aer LingusCheapest£496Average£588FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£503Average£741FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£505Average£822FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
AviancaCheapest£513Average£675FlexibilityNo cancel feeOn-time71%
Search Avianca flights
British AirwaysCheapest£515Average£729FlexibilityNo cancel feeOn-time70%
Search British Airways 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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