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Cheap flights from Cancún to London Heathrow Airport from £261

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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
CUN — LHR
18 Jun — 25 Jun1
1 adult

Cheapflights Tip: The best prices from Cancun to London Heathrow are usually found in March or January, booked 78 days in advance, depart on a Tuesday or Wednesday and return on a Monday

Cheap flight deals from Cancún to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Cancún (CUN) to Heathrow (LHR). 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 13 June 2025.

Round-trip from

£577

One-way from

£261

Popular in

August

Cheapest in

March

Average price

£820
Icelandair
  • Icelandair
  • 19/7-29/8
  • 4 total stops
  • 67h 59m total
  • Cancún to London
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9/7
  • 9/7
  • 3 total stops
  • 41h 29m total
  • Cancún to London
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Highest demand for flights based on searches. 9% potential increase in price (£64 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease (£13 potential savings vs. average return price).
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Average for round-trip flights in June 2025
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Find flight deals from Cancún to Heathrow

Cheapest flights from Cancún to Heathrow
Explore the most affordable flight options available from Cancún to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sat 19/714:00CUN - LHR
2 stops34h 30mIcelandair
Fri 29/808:25LHR - CUN
2 stops33h 29mIcelandair
Deal found 11/6£577
Wed 10/911:20CUN - LHR
1 stop27h 25mJetBlue
Sun 12/1008:15LHR - CUN
1 stop35h 00mJetBlue
Deal found 13/6£592
Mon 20/1019:40CUN - LHR
1 stop14h 40mMultiple Airlines
Tue 28/1018:45LHR - CUN
1 stop26h 50mMultiple Airlines
Deal found 11/6£615
Tue 25/1112:15CUN - LHR
1 stop13h 55mAir Canada
Tue 9/1206:50LHR - CUN
2 stops20h 35mAir Canada
Deal found 11/6£627
Mon 24/1112:10CUN - LHR
1 stop14h 40mVirgin Atlantic
Sun 7/1209:55LHR - CUN
Nonstop11h 05mVirgin Atlantic
Deal found 11/6£670
Sat 27/1220:10CUN - LHR
1 stop14h 20mTAP AIR PORTUGAL
Wed 7/118:30LHR - CUN
1 stop29h 10mTAP AIR PORTUGAL
Deal found 11/6£680
Mon 18/814:00CUN - LHR
1 stop17h 30mDelta
Wed 27/806:30LHR - CUN
2 stops19h 50mDelta
Deal found 11/6£697
Sat 4/1016:12CUN - LHR
1 stop32h 43mUnited Airlines
Sun 12/1016:40LHR - CUN
1 stop24h 30mUnited Airlines
Deal found 11/6£719
Sat 16/812:00CUN - LHR
2 stops27h 40mFinnair
Sat 30/810:30LHR - CUN
1 stop15h 35mFinnair
Deal found 12/6£782
Mon 1/913:51CUN - LHR
1 stop20h 09mAeromexico
Mon 8/922:30LHR - CUN
1 stop24h 43mAeromexico
Deal found 11/6£790
Wed 16/718:30CUN - LHR
1 stop31h 25mSWISS
Fri 29/820:05LHR - CUN
1 stop26h 55mSWISS
Deal found 11/6£817

Cheapflights Fare Finder

Customise your flight search to find flights from Cancún to Heathrow 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 858,174 searches. Data last updated 13 June 2025.
Use the filters below to find and compare flights from Cancún to London Heathrow Airport that are best for you.

Fly from

Cancún

Fly to

Heathrow

Route

Depart

Return

Price

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Sat 19/7

14:00-06:30

2 stops34h 30m

London Heathrow

Fri 29/8

08:25-11:54

2 stops33h 29m

£577

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Wed 10/9

11:20-20:45

1 stop27h 25m

London Heathrow

Sun 12/10

08:15-13:15

1 stop35h 00m

£592

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Mon 20/10

19:40-16:20

1 stop14h 40m

London Heathrow

Tue 28/10

18:45-16:35

1 stop26h 50m

£615

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Tue 25/11

12:15-07:10

1 stop13h 55m

London Heathrow

Tue 9/12

06:50-22:25

2 stops20h 35m

£627

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Mon 24/11

12:10-07:50

1 stop14h 40m

London Heathrow

Sun 7/12

09:55-16:00

Nonstop11h 05m

£670

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Mon 18/8

14:00-13:30

1 stop17h 30m

London Heathrow

Wed 27/8

06:30-20:20

2 stops19h 50m

£697

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Sat 4/10

16:12-06:55

1 stop32h 43m

London Heathrow

Sun 12/10

16:40-11:10

1 stop24h 30m

£719

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Sat 16/8

12:00-21:40

2 stops27h 40m

London Heathrow

Fri 29/8

10:30-20:05

1 stop15h 35m

£782

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Mon 1/9

13:51-16:00

1 stop20h 09m

London Heathrow

Mon 8/9

22:30-17:13

1 stop24h 43m

£790

CancúnLondon

CUN - LHR

CUNLHR

Cancun

Wed 16/7

18:30-07:55

1 stop31h 25m

London Heathrow

Fri 29/8

20:05-17:00

1 stop26h 55m

£817

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 15 results
1
2

Best time to book a flight from Cancún to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Cancún with our price prediction graph.
Estimated return 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 Cancún to London Heathrow Airport

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

Use this chart to determine the optimal time to book a return flight from Cancún to Heathrow. Price data was last updated on 9 June 2025.

The best time to book flights from Cancún to London Heathrow Airport is 78 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 Cancún to London Heathrow Airport?

Currently, January is the cheapest month in which you can book a flight from Cancún to London Heathrow Airport (average of £112). Flying from Cancún to London Heathrow Airport in August is currently the most expensive (average of £164). 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 CUN to LHR?

Find hourly flight availability from Cancún to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

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

Rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

Temperature in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature totals by month.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. 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 Heathrow. Reviews last updated 13 June 2025.
Peruse reviews from past customers who have flown with Delta, Finnair and Aeromexico from Cancún to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very Good
7,950 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aeromexico
7.5
Good
1,706 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,624 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,790 reviews
Delta
8.0
Very Good
7,950 reviews
Check prices

Food

7.3

Boarding

8.2

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Cancún to Heathrow. 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 from for flights from Cancún to London Heathrow?

    Located just 8.9 mi from the city center, Cancun is the airport most travelers will use when flying to London Heathrow from Cancún. Booking flights from Cancun (CUN) to London Heathrow should be relatively easy as there are 0 daily outbound flights to London Heathrow from 0 different airlines.

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

    Flying on Icelandair is currently your cheapest option to London Heathrow Airport, with prices starting at £577. Additional return tickets that might be worth considering are offered by JetBlue and Air Canada, with the lowest prices starting at £592 and £627, respectively. Icelandair is priced at 26% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Cancún to London Heathrow Airport one-way?

    For one-way options, check prices for JetBlue. According to our data, you can fly for as low as £278. Users have also found prices from £338 and £355 on Avianca and WestJet, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Cancún to Heathrow 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 Cancún to London Heathrow Airport?

    Currently, January is the cheapest month in which you can book a flight from Cancún to London Heathrow Airport (average of £112). Flying from Cancún to London Heathrow Airport in August is currently the most expensive (average of £164). 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
Deal
Hounslow
Croydon
Milton Keynes
Northampton
Gatwick
Luton
Slough
Wembley
Crawley
Eastbourne
Ilford
Southend-on-Sea
Watford
Hayes
Ipswich
Winchester
Folkestone
Maidstone
Swindon

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Alternative routes for Cancún to Heathrow

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

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

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

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

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