Cheap flights from London Heathrow Airport to Cancún from £342

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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — CUN
17 Jan — 24 Jan1
1 adult
1 adult, Economy, 0 bags

Cheapflights Tip: The best prices from London Heathrow to Cancun are usually found in September or January, booked 31 days in advance, depart on a Tuesday or Saturday and return on a Tuesday

Cheap flight deals from Heathrow to Cancún

Enter your travel dates to find the best prices.

Cheapest flights from Heathrow to Cancún
Explore the most affordable flight options available from Heathrow to Cancún. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 December 2025.

Sat 27/1214:45LHR - CUN
1 stop24h 48mAmerican Airlines
Tue 13/112:50CUN - LHR
1 stop12h 55mAmerican Airlines
Deal found 16/12£536
Wed 24/1214:45LHR - CUN
1 stop26h 28mAmerican Airlines
Wed 14/112:50CUN - LHR
1 stop13h 20mAmerican Airlines
Deal found 16/12£538
Mon 22/1212:05LHR - CUN
1 stop29h 49mUnited Airlines
Wed 31/1213:37CUN - LHR
1 stop15h 03mUnited Airlines
Deal found 15/12£555
Wed 31/1206:30LHR - CUN
1 stop14h 50mLufthansa
Sun 11/112:28CUN - LHR
1 stop16h 47mLufthansa
Deal found 15/12£556
Tue 23/1212:05LHR - CUN
1 stop34h 45mUnited Airlines
Wed 31/1206:30CUN - LHR
2 stops19h 40mUnited Airlines
Deal found 15/12£557
Wed 31/1220:05LHR - CUN
1 stop27h 05mMultiple Airlines
Fri 16/112:28CUN - LHR
1 stop14h 02mMultiple Airlines
Deal found 15/12£562
Wed 24/1215:00LHR - CUN
1 stop30h 09mAmerican Airlines
Wed 21/108:45CUN - LHR
2 stops16h 45mAmerican Airlines
Deal found 17/12£562
Thu 25/1208:20LHR - CUN
1 stop14h 39mMultiple Airlines
Tue 13/113:30CUN - LHR
1 stop14h 45mMultiple Airlines
Deal found 17/12£566
Wed 31/1218:40LHR - CUN
1 stop28h 30mMultiple Airlines
Thu 8/118:20CUN - LHR
1 stop31h 50mMultiple Airlines
Deal found 15/12£571
Wed 31/1217:10LHR - CUN
1 stop30h 00mMultiple Airlines
Fri 30/108:00CUN - LHR
1 stop22h 50mMultiple Airlines
Deal found 14/12£572

Find flight deals from Heathrow to Cancún

Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Cancún (CUN). 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 18 December 2025.

Round-trip from

£534

One-way from

£342

Popular in

December

Cheapest in

September

Average price

£877

Good round-trip deal

£640 or less

Good one-way deal

£500 or less
American Airlines
  • American Airlines
  • 14/2-10/3
  • 2 total stops
  • 40h 37m total
  • London to Cancún
1/3
  • 1/3
  • 1 total stop
  • 30h 55m 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. 3% potential price decrease (£16 potential savings vs. average return price).
Average for round-trip flights in December 2025
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

 
Customise your flight search to find flights from Heathrow 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, Cheapflights users made 858,174 searches. Data last updated 18 December 2025.
Use the filters below to find and compare flights from London Heathrow Airport to Cancún that are best for you.

Fly from

Heathrow

Fly to

Cancún

Route

Depart

Return

Price

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Sun 15/2

06:30-21:11

2 stops19h 41m

Cancun

Mon 23/2

08:00-09:00

1 stop20h 00m

£642

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Sun 18/1

06:30-21:11

2 stops19h 41m

Cancun

Sun 1/2

12:05-11:40

2 stops18h 35m

£645

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 4/2

18:10-20:45

2 stops31h 35m

Cancun

Mon 16/2

13:09-10:00

1 stop15h 51m

£670

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 6/2

08:40-21:11

2 stops17h 31m

Cancun

Sun 15/2

12:15-10:50

2 stops17h 35m

£674

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 8/5

16:10-20:00

2 stops33h 50m

Cancun

Sat 30/5

12:11-10:55

1 stop16h 44m

£691

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 16/1

14:45-20:40

Nonstop10h 55m

Cancun

Fri 23/1

13:40-09:00

1 stop14h 20m

£698

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Sat 14/2

15:20-16:46

1 stop30h 26m

Cancun

Sat 21/2

18:30-13:30

1 stop38h 00m

£701

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Fri 6/3

06:30-21:11

2 stops19h 41m

Cancun

Sat 21/3

08:00-09:00

1 stop20h 00m

£702

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Mon 23/3

06:30-19:59

2 stops18h 29m

Cancun

Thu 16/4

08:15-10:50

2 stops20h 35m

£727

LondonCancún

LHR - CUN

LHRCUN

London Heathrow

Wed 10/6

13:00-06:48

1 stop23h 48m

Cancun

Tue 23/6

07:51-07:40

1 stop17h 49m

£734

Flights are sorted by cheapest return flights first.

Deals found on 15/12

Showing 1-10 of 22 results
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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
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 London Heathrow Airport to Cancún

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

Use this chart to determine the optimal time to book a return flight from Heathrow to Cancún. Price data was last updated on 12 December 2025.

To ensure you get the cheapest price possible for a flight from London Heathrow Airport to Cancún, you should look to book at least 31 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of £456). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £566). 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?

Find hourly flight availability from Heathrow to Cancún. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 December 2025.

A simple way to save on the total cost of your ticket is to fly from London Heathrow Airport to Cancún in the afternoon. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight at midday.

What is the cheapest day to fly from London Heathrow Airport to Cancún?

Use this chart to determine the cheapest time to fly return from Heathrow to Cancún. Price data was last updated on 13 December 2025.

Travellers seeking maximum savings on their London Heathrow Airport to Cancún flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Cancún

Get insights into the airlines that provide service to Cancún. 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 Cancún. Reviews last updated 18 December 2025.
Read through reviews of airlines operating flights from London Heathrow Airport to Cancún, such as Finnair, Virgin Atlantic, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Entertainment

6.9

Crew

8.1

Overall

7.6

Boarding

7.6

Food

6.7

Comfort

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

Related info for your journey

Find useful and relevant information for your journey from Heathrow to Cancún. 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 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 15 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 19h 41m. 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 Aer Lingus is currently your cheapest option to Cancún, with prices starting at £429. Additional return tickets that might be worth considering are offered by Air Canada and Delta, with the lowest prices starting at £464 and £468, respectively. These flights start at 34% 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 £372. On average you can expect to pay £943. The most popular route, (London Heathrow - Cancun), can usually be booked for £483.

  • 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, November is the cheapest month in which you can book a flight from London Heathrow Airport to Cancún (average of £456). Flying from London Heathrow Airport to Cancún in July is currently the most expensive (average of £566). 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

Choose from the following airlines for your flight from Heathrow to Cancún. Flights are based on user searches made on Cheapflights and were last updated on 18 December 2025.

Top 10 airlines flying from Heathrow to Cancún

Discover the top 10 airlines that operate flights from Heathrow to Cancún. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 18 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£429Average£569FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air CanadaCheapest£464Average£574FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
DeltaCheapest£468Average£694FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
KLMCheapest£480Average£678FlexibilityNo cancel feeOn-time75%
Search KLM flights
British AirwaysCheapest£482Average£648FlexibilityNo cancel feeOn-time70%
Search British Airways flights
Virgin AtlanticCheapest£490Average£627FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Air FranceCheapest£490Average£604FlexibilityNo cancel feeOn-time77%
Search Air France flights
American AirlinesCheapest£512Average£743FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
FinnairCheapest£522Average£622FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£528Average£667FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

Fly with Cheapflights

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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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