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Cheap flights from London Heathrow Airport to Chiang Mai from £327

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 Chiang Mai departing on 5/5. 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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Find the cheapest flights from London Heathrow Airport to Chiang Mai

Cheap return flights

These are some of the best return flight deals from London Heathrow Airport to Chiang Mai that have been recently found on momondo from popular airlines, departing in the coming months.
China Southern Logo
21:00 - 10:25LHR-CNX
31h 25m2 stops
China Southern Logo
18:50 - 19:00CNX-LHR
30h 10m1 stop
£500China Southern
Find Deal
Thu, 12 Jun - Thu, 19 Jun
China Southern Logo
21:00 - 10:25LHR-CNX
31h 25m2 stops
China Southern Logo
18:50 - 19:00CNX-LHR
30h 10m1 stop
£500China Southern
Find Deal
Thu, 12 Jun - Thu, 19 Jun
China Southern Logo
21:00 - 10:25LHR-CNX
31h 25m2 stops
China Southern Logo
18:50 - 19:00CNX-LHR
30h 10m1 stop
£502China Southern
Find Deal
Thu, 12 Jun - Thu, 19 Jun
China Eastern Logo
21:20 - 09:05LHR-CNX
29h 45m3 stops
China Eastern Logo
16:20 - 18:40CNX-LHR
32h 20m2 stops
£506China Eastern
Find Deal
Wed, 14 May - Wed, 21 May
China Eastern Logo
21:20 - 09:05LHR-CNX
29h 45m2 stops
China Eastern Logo
10:05 - 18:40CNX-LHR
38h 35m2 stops
£515China Eastern
Find Deal
Tue, 20 May - Mon, 2 Jun
Air China Logo
20:25 - 21:50LHR-CNX
19h 25m1 stop
Air China Logo
23:05 - 20:30CNX-LHR
27h 25m1 stop
£527Air China
Find Deal
Mon, 26 May - Thu, 12 Jun
Air China Logo
22:00 - 21:50LHR-CNX
41h 50m2 stops
Air China Logo
23:05 - 17:45CNX-LHR
24h 40m1 stop
£538Air China
Find Deal
Thu, 15 May - Thu, 22 May
Malaysia Airlines Logo
11:00 - 11:40LHR-CNX
18h 40m1 stop
Malaysia Airlines Logo
14:40 - 16:35CNX-LHR
31h 55m1 stop
£555Malaysia Airlines
Find Deal
Thu, 12 Jun - Thu, 19 Jun
Malaysia Airlines Logo
11:00 - 11:40LHR-CNX
18h 40m1 stop
Malaysia Airlines Logo
12:35 - 16:35CNX-LHR
34h 00m1 stop
£556Malaysia Airlines
Find Deal
Thu, 15 May - Sun, 18 May
Thai Airways Logo
21:25 - 08:45LHR-CNX
29h 20m1 stop
Thai Airways Logo
09:25 - 19:10CNX-LHR
15h 45m1 stop
£724Thai Airways
Find Deal
Tue, 9 Sep - Sun, 14 Sep

Cathay Pacific flights from London Heathrow Airport to Chiang Mai

Our best Cathay Pacific deals on London Heathrow Airport to Chiang Mai flight tickets
Cathay Pacific
2 Jun
LHR18:20London Heathrow
33h 25m
1 stop
CNX09:45Chiang Mai
18 Jun
CNX10:30Chiang Mai
40h 05m
1 stop
LHR20:35London Heathrow
Cathay Pacific
5 May
LHR22:15London Heathrow
38h 25m
1 stop
CNX18:40Chiang Mai
19 May
CNX19:25Chiang Mai
31h 10m
1 stop
LHR20:35London Heathrow
Cathay Pacific
29 May
LHR22:15London Heathrow
38h 25m
1 stop
CNX18:40Chiang Mai
22 Jun
CNX19:25Chiang Mai
25h 50m
1 stop
LHR15:15London Heathrow

Air China flights from London Heathrow Airport to Chiang Mai

Our best Air China deals on London Heathrow Airport to Chiang Mai flight tickets
Air China
26 May
LHR20:25London Heathrow
19h 25m
1 stop
CNX21:50Chiang Mai
12 Jun
CNX23:05Chiang Mai
27h 25m
1 stop
LHR20:30London Heathrow
Air China
4 May
LHR20:25London Heathrow
19h 25m
1 stop
CNX21:50Chiang Mai
13 May
CNX23:05Chiang Mai
27h 25m
1 stop
LHR20:30London Heathrow
Air China
15 May
LHR22:00London Heathrow
41h 50m
2 stops
CNX21:50Chiang Mai
22 May
CNX23:05Chiang Mai
24h 40m
1 stop
LHR17:45London Heathrow

See travel insights to Chiang Mai from

How to get the cheapest flight ticket from London Heathrow Airport to Chiang Mai

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 Chiang Mai?

The month of October is, on average, the cheapest month to fly to Chiang Mai from London Heathrow Airport, with most prices found around £702. If you aren’t able to travel during the month of October, then book flights to Chiang Mai from London Heathrow Airport during May instead. Flights to Chiang Mai in May, while not as cheap as those in October, still average around £706.

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart on your flight to Chiang Mai is on a Thursday when prices can be found for as low as £652. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday is the most expensive day to depart from London Heathrow Airport because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £775.

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

The cheapest time of day to fly to Chiang Mai is in the afternoon when flights can be purchased for as low as £569. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £950 on average. Flights to Chiang Mai from London Heathrow Airport at midday are generally more expensive because this time of day is more convenient for travellers’ schedules.

How far in advance should I book a flight to Chiang Mai?

You are more likely to see cheaper flights to Chiang Mai from London Heathrow Airport when booking 6 weeks ahead of your departure date. In general, you can expect to find flights to Chiang Mai for around £790 when searching 6 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chiang Mai from London Heathrow Airport for as low as £572 on momondo.

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

As of April 2025, prices for London Heathrow Airport to Chiang Mai flights are approximately 3% more expensive when compared to flights at the same time last year.

When to book flights from London Heathrow Airport to Chiang Mai

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

Cheap London Heathrow Airport to Chiang Mai (LHR to CNX) flight deals and tips

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

Best price found

£327

Fastest flight time

14h 15m

Direct flights

None

Airports in Chiang Mai

1 airport
The best one-way flight to Chiang Mai from London Heathrow Airport in the past 72 hours is £327. The best return flight deal from London Heathrow Airport to Chiang Mai found on momondo in the last 72 hours is £500.
The fastest flight from London Heathrow Airport to Chiang Mai takes 14h 15m
There are no direct flights from London Heathrow Airport to Chiang Mai. Popular non-direct route for this connection is London Heathrow Airport - Chiang Mai Airport.
There is 1 airport near Chiang Mai: Chiang Mai (CNX)

  • How far is London Heathrow to Chiang Mai by plane?

    A flight from London Heathrow to Chiang Mai will travel around 5597.7 mi. In terms of flight time, this usually takes a little over 14h 15m.

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

    Prices for flights from London Heathrow Airport to Chiang Mai Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from London Heathrow Airport to Chiang Mai Airport.

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

    The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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


Best airlines flying from London Heathrow Airport to Chiang Mai

Compare and see reviews for airlines that fly from London Heathrow Airport to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
China SouthernPriceFrom £420Free CancellationRating
7.5
96 reviews
Search China Southern flights
China EasternPriceFrom £456Free CancellationRating
7.1
148 reviews
Search China Eastern flights
Air ChinaPriceFrom £464Free CancellationRating
7.2
88 reviews
Search Air China flights
Malaysia AirlinesPriceFrom £606Free CancellationRating
7.3
254 reviews
Search Malaysia Airlines flights
Etihad AirwaysPriceFrom £609Free CancellationRating
7.4
1,203 reviews
Search Etihad Airways flights
EVA AirPriceFrom £678Free CancellationRating
8.4
1,186 reviews
Search EVA Air flights
Thai AirwaysPriceFrom £700Free CancellationRating
7.7
325 reviews
Search Thai Airways flights
Cathay PacificPriceFrom £751Free CancellationRating
7.5
852 reviews
Search Cathay Pacific flights

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from London to Chiang Mai for you.

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

Flights from London to Chiang Mai with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from London to Chiang Mai?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chiang Mai from London.

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

If you are not ready to book a flight from London to Chiang Mai now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chiang Mai and let you know when they change.


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