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Cheap flights from London Heathrow Airport to Cancún from $461

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from London Heathrow Airport to Cancún departing on 1/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from London Heathrow Airport to Cancún

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
9:00 am - 10:40 pm
LHR
-
CUN
18h 40m2 stops
Air Canada Logo
8:00 am - 11:50 am
CUN
-
LHR
22h 50m1 stop
$645Air Canada
Wed, Jan 21 - Sun, Jan 25
Air Canada Logo
9:00 am - 10:40 pm
LHR
-
CUN
18h 40m2 stops
Air Canada Logo
3:00 pm - 7:10 am
CUN
-
LHR
35h 10m1 stop
$648Air Canada
Tue, Jan 20 - Tue, Jan 27
Air Canada Logo
6:00 am - 9:15 pm
LHR
-
CUN
20h 15m2 stops
Air Canada Logo
6:10 pm - 11:50 am
CUN
-
LHR
36h 40m1 stop
$650Air Canada
Tue, Feb 17 - Sat, Feb 28
Air Canada Logo
6:50 am - 10:40 pm
LHR
-
CUN
20h 50m2 stops
Air Canada Logo
8:00 am - 11:50 am
CUN
-
LHR
22h 50m1 stop
$652Air Canada
Fri, Jan 16 - Wed, Jan 21
Air Canada Logo
6:50 am - 10:40 pm
LHR
-
CUN
20h 50m2 stops
Air Canada Logo
6:20 pm - 7:10 am
CUN
-
LHR
31h 50m1 stop
$656Air Canada
Fri, Jan 16 - Sat, Jan 24
American Airlines Logo
6:05 pm - 10:37 am
LHR
-
CUN
22h 32m1 stop
American Airlines Logo
12:33 pm - 9:00 am
CUN
-
LHR
14h 27m1 stop
$668American Airlines
Wed, Apr 22 - Wed, Apr 29
Air Canada Logo
6:00 am - 9:15 pm
LHR
-
CUN
20h 15m2 stops
Air Canada Logo
8:00 am - 11:50 am
CUN
-
LHR
22h 50m1 stop
$671Air Canada
Thu, Feb 26 - Mon, Mar 2
Air Canada Logo
6:50 am - 10:40 pm
LHR
-
CUN
20h 50m2 stops
Air Canada Logo
8:00 am - 11:50 am
CUN
-
LHR
22h 50m1 stop
$673Air Canada
Tue, Feb 3 - Tue, Feb 10
Air Canada Logo
6:00 am - 9:40 pm
LHR
-
CUN
20h 40m2 stops
Air Canada Logo
10:45 am - 6:30 am
CUN
-
LHR
14h 45m1 stop
$675Air Canada
Thu, Mar 12 - Mon, Mar 16
Air Canada Logo
9:00 am - 10:40 pm
LHR
-
CUN
18h 40m2 stops
Air Canada Logo
11:00 am - 8:30 am
CUN
-
LHR
16h 30m2 stops
$676Air Canada
Tue, Jan 20 - Tue, Jan 27

American Airlines flights from London Heathrow Airport to Cancún

Our best American Airlines deals on London Heathrow Airport to Cancún flight tickets
American Airlines
Apr 22
LHR6:05 pmLondon Heathrow
22h 32m
1 stop
CUN10:37 amCancun
Apr 29
CUN12:33 pmCancun
14h 27m
1 stop
LHR9:00 amLondon Heathrow
$668
Find similar
American Airlines
Feb 6
LHR4:30 pmLondon Heathrow
24h 30m
1 stop
CUN12:00 pmCancun
Feb 16
CUN2:22 pmCancun
13h 13m
1 stop
LHR8:35 amLondon Heathrow
$692
Find similar
American Airlines
Apr 19
LHR4:25 pmLondon Heathrow
23h 35m
1 stop
CUN10:00 amCancun
Apr 26
CUN11:01 amCancun
13h 49m
1 stop
LHR6:50 amLondon Heathrow
$694
Find similar

Air Canada flights from London Heathrow Airport to Cancún

Our best Air Canada deals on London Heathrow Airport to Cancún flight tickets
Air Canada
Jan 21
LHR9:00 amLondon Heathrow
18h 40m
2 stops
CUN10:40 pmCancun
Jan 25
CUN8:00 amCancun
22h 50m
1 stop
LHR11:50 amLondon Heathrow
$645
Find similar
Air Canada
Jan 20
LHR9:00 amLondon Heathrow
18h 40m
2 stops
CUN10:40 pmCancun
Jan 27
CUN3:00 pmCancun
35h 10m
1 stop
LHR7:10 amLondon Heathrow
$648
Find similar
Air Canada
Feb 17
LHR6:00 amLondon Heathrow
20h 15m
2 stops
CUN9:15 pmCancun
Feb 28
CUN6:10 pmCancun
36h 40m
1 stop
LHR11:50 amLondon Heathrow
$650
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from London Heathrow Airport 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, momondo users made 832,500 searches. Data last updated December 30, 2025.
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

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 1/21

9:00 am-10:40 pm

2 stops18h 40m

Cancun

Sun 1/25

8:00 am-11:50 am

1 stop22h 50m

$645

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 1/20

9:00 am-10:40 pm

2 stops18h 40m

Cancun

Tue 1/27

3:00 pm-7:10 am

1 stop35h 10m

$648

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 2/17

6:00 am-9:15 pm

2 stops20h 15m

Cancun

Sat 2/28

6:10 pm-11:50 am

1 stop36h 40m

$650

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 1/16

6:50 am-10:40 pm

2 stops20h 50m

Cancun

Wed 1/21

8:00 am-11:50 am

1 stop22h 50m

$652

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 1/16

6:50 am-10:40 pm

2 stops20h 50m

Cancun

Sat 1/24

6:20 pm-7:10 am

1 stop31h 50m

$656

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 4/22

6:05 pm-10:37 am

1 stop22h 32m

Cancun

Wed 4/29

12:33 pm-9:00 am

1 stop14h 27m

$668

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Thu 2/26

6:00 am-9:15 pm

2 stops20h 15m

Cancun

Mon 3/2

8:00 am-11:50 am

1 stop22h 50m

$671

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 2/3

6:50 am-10:40 pm

2 stops20h 50m

Cancun

Tue 2/10

8:00 am-11:50 am

1 stop22h 50m

$673

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Thu 3/12

6:00 am-9:40 pm

2 stops20h 40m

Cancun

Mon 3/16

10:45 am-6:30 am

1 stop14h 45m

$675

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Tue 1/20

9:00 am-10:40 pm

2 stops18h 40m

Cancun

Tue 1/27

11:00 am-8:30 am

2 stops16h 30m

$676

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Cancún from

How to get the cheapest flight ticket from London Heathrow Airport to Cancún

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Cancún?

If you don’t want to visit Cancún in March, then you should wait until September to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of $728.

What is the cheapest day to depart on your flight to Cancún?

The cheapest day to depart from London Heathrow Airport to Cancún is on a Monday when prices can be found for as low as $788. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,086. These prices are subject to change though, so be sure to set up a Price Alert for flights to Cancún.

What is the cheapest time of day to depart on your flight to Cancún?

Our most recent data shows that the best time of day to fly to Cancún is in the morning. Flights from London Heathrow Airport to Cancún during this time can be as low as $779. Flights to Cancún are more costly at noon, with an average ticket price of $964. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest London Heathrow to Cancun flight route?

Fly from London Heathrow to Cancun for the best London Heathrow - Cancun flight prices

How far in advance should I book a flight to Cancún?

You are more likely to see cheaper flights to Cancún from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Cancún for around $872 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Cancún from London Heathrow Airport for as low as $698 on momondo.

What cabin class options are available on London Heathrow to Cancun flights?

There is only 1 cabin class available to choose from on London Heathrow to Cancun flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on London Heathrow Airport to Cancún flights?

You could potentially save up to 29% on your flight if you consider stops on a London Heathrow Airport to Cancún flight.

How have London Heathrow Airport to Cancún flight prices changed over time?

As of December 2025, prices for London Heathrow Airport to Cancún flights are approximately 14% cheaper when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Cancún

Are you open to changing your travel dates? Check out the ideal times to fly from London Heathrow Airport to Cancún according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap London Heathrow Airport to Cancún (LHR to CUN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London Heathrow Airport to Cancún

Best Price Found

$823

Fastest flight time

10h 55m

Direct flights

Mon, Thu and Sat

Airports in Cancún

1 airport
The best flight deal from London Heathrow Airport to Cancún found on momondo in the last 72 hours is $823
The fastest flight from London Heathrow Airport to Cancún takes 10h 55m
Direct flights go from London Heathrow Airport to Cancún on Monday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport in Cancún. From London Heathrow Airport there are direct flights to Cancun (CUN).
Search flight deals

  • How far is London Heathrow to Cancun by plane?

    The straight-line distance from London Heathrow to Cancun is 4929.2 mi. 10h 55m is a normal flight duration for this route.

  • When did momondo last update prices for flights from London Heathrow Airport to Cancun Airport?

    Prices for flights from London Heathrow Airport to Cancun Airport were last updated today.

  • How many operators does momondo search for flights from London Heathrow Airport to Cancun Airport?

  • How old do you have to be to fly from London Heathrow Airport to Cancun Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London Heathrow Airport to Cancun Airport.

  • What documentation or ID do you need to fly to Cancun Airport?

    The travel and health documents you'll need for your trip to Cancun Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Cancun Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from London Heathrow Airport to Cancún?

  • What is the most popular airline from London Heathrow Airport to Cancún?

Best airlines flying from London Heathrow Airport to Cancún

Compare and see reviews for airlines that fly from London Heathrow Airport to Cancún with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $622Free CancellationRating
7.2
11,074 reviews
Search American Airlines flights
Virgin AtlanticPriceFrom $647Free CancellationRating
7.5
677 reviews
Search Virgin Atlantic flights

Traveling to a place near Cancún?

Book flights to Cancún if you plan to visit one of these locations
Playa del Carmen
Isla Mujeres
Holbox
Puerto Morelos
Akumal
Puerto Aventuras
Valladolid
Punta Sam

Why use momondo?

Why should I use momondo to find a flight deal from London to Cancún?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Cancún from London.

Can I find flights from London to Cancún with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Cancún from London with this policy.

How can momondo help me find flights from London to Cancún?

Once all potential London to Cancún flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from London to Cancún right now. Can momondo alert me if prices change?

Yes. momondo can track prices for London to Cancún flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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