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Cheap flights from Mexico City to London Heathrow Airport from C$ 627

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 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
MEX — LHR
25 Apr — 2 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Mexico City Benito Juarez to London Heathrow are usually found in February or January, booked 76 days in advance, depart on a Monday or Wednesday and return on a Wednesday

Cheap flight deals from Mexico City to Heathrow

Enter your travel dates to find the best prices.

Cheapest flights from Mexico City to Heathrow
Explore the most affordable flight options available from Mexico City to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 26 March 2026.

Sat 4/411:20 a.m.
MEX
-
LHR
1 stop14h 15m
Finnair
Mon 13/410:05 a.m.
LHR
-
MEX
1 stop15h 27m
Finnair
Deal found 22/3C$ 1,429
Sun 5/411:20 a.m.
MEX
-
LHR
1 stop13h 45m
British Airways
Mon 13/410:05 a.m.
LHR
-
MEX
1 stop15h 27m
British Airways
Deal found 22/3C$ 1,464
Tue 7/410:00 p.m.
MEX
-
LHR
Nonstop10h 30m
British Airways
Mon 13/48:55 a.m.
LHR
-
MEX
1 stop16h 37m
British Airways
Deal found 22/3C$ 1,503
Fri 3/411:20 a.m.
MEX
-
LHR
2 stops16h 10m
Finnair
Tue 7/48:55 a.m.
LHR
-
MEX
1 stop16h 37m
Finnair
Deal found 23/3C$ 1,521
Wed 30/1210:05 a.m.
MEX
-
LHR
1 stop18h 10m
United Airlines
Sat 16/112:05 p.m.
LHR
-
MEX
1 stop15h 45m
United Airlines
Deal found 22/3C$ 1,536
Fri 24/49:05 a.m.
MEX
-
LHR
2 stops21h 30m
Multiple Airlines
Fri 1/57:05 a.m.
LHR
-
MEX
2 stops21h 45m
Multiple Airlines
Deal found 22/3C$ 1,552
Fri 3/412:55 p.m.
MEX
-
LHR
1 stop16h 15m
British Airways
Tue 7/410:05 a.m.
LHR
-
MEX
1 stop17h 40m
British Airways
Deal found 25/3C$ 1,558

Find flight deals from Mexico City to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Mexico City (MEX) 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 26 March 2026.

Round-trip from

C$ 1,429

One-way from

C$ 627

Popular in

July

Cheapest in

February

Average price

C$ 1,583

Good round-trip deal

C$ 2,362 or less
Finnair
  • Finnair
  • 9/4-13/4
  • 2 total stops
  • 36h 42m total
  • Mexico City to London
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Finnair
  • Finnair
  • 3/4
  • 2 total stops
  • 17h 55m total
  • Mexico City to London
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 57 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
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Price to beat on a round-trip flight from Mexico City Benito Juarez to London Heathrow.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Mexico City 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 629,999 searches. Data last updated 26 March 2026.
Use the filters below to find and compare flights from Mexico City to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Wed 22/4

8:40 a.m.-6:25 a.m.

1 stop14h 45m

London Heathrow

Mon 4/5

6:30 a.m.-7:40 p.m.

2 stops20h 10m

C$ 1,626

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Wed 22/4

11:30 a.m.-11:20 a.m.

2 stops16h 50m

London Heathrow

Sun 3/5

6:30 a.m.-7:40 p.m.

2 stops20h 10m

C$ 1,698

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Fri 22/5

8:40 a.m.-10:40 a.m.

2 stops19h 00m

London Heathrow

Tue 26/5

8:40 a.m.-9:50 p.m.

2 stops20h 10m

C$ 1,909
Quickest round-trip

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Wed 13/5

10:00 p.m.-3:30 p.m.

Nonstop10h 30m

London Heathrow

Wed 27/5

12:15 p.m.-8:25 p.m.

1 stop15h 10m

C$ 1,940

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Sat 2/5

1:50 p.m.-1:05 p.m.

1 stop16h 15m

London Heathrow

Sat 16/5

8:55 a.m.-4:55 p.m.

1 stop15h 00m

C$ 1,941

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Tue 4/8

6:55 a.m.-4:25 p.m.

3 stops26h 30m

London Heathrow

Tue 18/8

6:40 a.m.-5:00 a.m.

2 stops29h 20m

C$ 1,979

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Sat 2/5

10:00 p.m.-3:30 p.m.

Nonstop10h 30m

London Heathrow

Sat 16/5

12:15 p.m.-10:20 p.m.

1 stop17h 05m

C$ 2,032

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Tue 12/5

2:00 p.m.-12:35 p.m.

1 stop15h 35m

London Heathrow

Tue 19/5

3:10 p.m.-7:45 p.m.

Nonstop11h 35m

C$ 2,055

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Thu 20/8

10:00 p.m.-3:30 p.m.

Nonstop10h 30m

London Heathrow

Sun 30/8

9:55 a.m.-8:15 p.m.

1 stop17h 20m

C$ 2,055

Mexico CityLondon

MEX - LHR

MEXLHR

Mexico City Benito Juarez

Sat 4/7

4:40 a.m.-5:55 a.m.

2 stops18h 15m

London Heathrow

Sat 1/8

9:30 a.m.-11:10 p.m.

2 stops20h 40m

C$ 2,230

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/3

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Mexico City to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Mexico City with our price prediction graph.
Estimated round-trip 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 Mexico City to London Heathrow Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Mexico City to Heathrow. Price data was last updated on 13 March 2026.

To ensure you get the cheapest price possible for a flight from Mexico City to London Heathrow Airport, you should look to book at least 76 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 Mexico City to London Heathrow Airport?

Currently, November is the cheapest month in which you can book a flight from Mexico City to London Heathrow Airport (average of C$ 392). Flying from Mexico City to London Heathrow Airport in July is currently the most expensive (average of C$ 1,399). 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 MEX to LHR?

Find hourly flight availability from Mexico City 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 26 March 2026.

When flying from Mexico City to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Mexico City to London Heathrow Airport?

Related info for your journey

Find useful and relevant information for your journey from Mexico City 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 Mexico City to London Heathrow?

    Most people fly from Mexico City Benito Juarez (MEX) if they book a flight from Mexico City to London Heathrow. On average, Mexico City has 1 outbound flight to London Heathrow per day from 0 airlines. Mexico City Benito Juarez is conveniently located just 8.9 km from Mexico City’s city centre.

  • How long is the flight from Mexico City to London Heathrow Airport?

    Departing from Mexico City to London Heathrow Airport will take you 14h 10m. There are 8898 km between Mexico City and London Heathrow Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Mexico City to London Heathrow Airport?

    The top 3 most reliable airlines when flying from Mexico City to London Heathrow Airport are Iberia (84%), British Airways (84%) and Aeromexico (82%).

  • What are the cheapest flights from Mexico City to London Heathrow Airport?

    Looking at all options, your cheapest flight can be booked for C$ 1,926. While the most popular route (Mexico City Benito Juarez - London Heathrow) can be booked for C$ 2,300 on average, our data indicates C$ 2,708 when flying from Mexico City to London Heathrow Airport.

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

    Yes. In addition to deals on Mexico City to Heathrow flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Mexico City to Heathrow?

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Mexico City to London Heathrow Airport (average of C$ 392). Flying from Mexico City to London Heathrow Airport in July is currently the most expensive (average of C$ 1,399). 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 London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Gatwick
Twickenham
Bromley
Sutton
Slough
Marlow
Cobham
Leamington Spa
Bedford
Watford
Luton
High Wycombe
Stratford-upon-Avon
Hounslow
Moreton-in-Marsh

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Need flexible booking options for your flight to Heathrow from Mexico City? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Mexico City to Heathrow become cheaper?

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