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Cheap flights from London Heathrow Airport to Chiang Mai from £288

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 18/4. 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

KAYAK's recommended return flight deals from the most popular airlines that fly from London Heathrow Airport to Chiang Mai.
 Logo
10:10 - 17:55LHR-CNX
25h 45m2 stops
 Logo
09:20 - 07:30CNX-LHR
28h 10m2 stops
Wed, 7 May - Sun, 11 May
 Logo
14:40 - 20:25LHR-CNX
23h 45m2 stops
 Logo
06:35 - 07:30CNX-LHR
30h 55m2 stops
Tue, 13 May - Tue, 20 May
China Eastern Logo
21:20 - 13:25LHR-CNX
34h 05m1 stop
China Eastern Logo
14:55 - 18:40CNX-LHR
33h 45m1 stop
£466China Eastern
Find Deal
Wed, 7 May - Sun, 11 May
 Logo
10:10 - 20:40LHR-CNX
28h 30m2 stops
 Logo
08:25 - 12:40CNX-LHR
34h 15m2 stops
Wed, 30 Apr - Wed, 7 May
Air China Logo
20:25 - 21:50LHR-CNX
19h 25m1 stop
Air China Logo
23:05 - 20:15CNX-LHR
27h 10m2 stops
£513Air China
Find Deal
Fri, 2 May - Fri, 9 May
Air China Logo
20:25 - 21:50LHR-CNX
19h 25m1 stop
Air China Logo
23:05 - 20:15CNX-LHR
27h 10m2 stops
£527Air China
Find Deal
Tue, 22 Apr - Fri, 2 May
Malaysia Airlines Logo
11:00 - 13:40LHR-CNX
20h 40m1 stop
Malaysia Airlines Logo
12:35 - 16:35CNX-LHR
34h 00m1 stop
£649Malaysia Airlines
Find Deal
Mon, 15 Sep - Mon, 29 Sep
Malaysia Airlines Logo
11:00 - 11:40LHR-CNX
18h 40m1 stop
Malaysia Airlines Logo
20:00 - 16:35CNX-LHR
50h 35m2 stops
£832Malaysia Airlines
Find Deal
Sat, 26 Apr - Mon, 5 May
Thai Airways Logo
12:30 - 08:45LHR-CNX
14h 15m1 stop
Thai Airways Logo
15:30 - 07:15CNX-LHR
21h 45m1 stop
£1,098Thai Airways
Find Deal
Mon, 4 Aug - Tue, 12 Aug
EVA Air Logo
21:35 - 19:10LHR-CNX
15h 35m1 stop
EVA Air Logo
20:00 - 19:20CNX-LHR
29h 20m1 stop
£1,154EVA Air
Find Deal
Tue, 29 Apr - Thu, 1 May

China Eastern flights from London Heathrow Airport to Chiang Mai

Our best China Eastern deals on London Heathrow Airport to Chiang Mai flight tickets
China Eastern
7 May
LHR21:20London Heathrow
34h 05m
1 stop
CNX13:25Chiang Mai
11 May
CNX14:55Chiang Mai
33h 45m
1 stop
LHR18:40London Heathrow
China Eastern
30 Apr
LHR21:20London Heathrow
34h 05m
1 stop
CNX13:25Chiang Mai
7 May
CNX16:20Chiang Mai
32h 20m
2 stops
LHR18:40London Heathrow
China Eastern
26 May
LHR21:20London Heathrow
29h 45m
2 stops
CNX09:05Chiang Mai
15 Jun
CNX14:55Chiang Mai
33h 45m
1 stop
LHR18:40London Heathrow

China Southern flights from London Heathrow Airport to Chiang Mai

Our best China Southern deals on London Heathrow Airport to Chiang Mai flight tickets
China Southern
25 May
LHR22:10London Heathrow
30h 15m
1 stop
CNX10:25Chiang Mai
15 Jun
CNX11:30Chiang Mai
37h 30m
1 stop
LHR19:00London Heathrow
China Southern
7 May
LHR22:10London Heathrow
37h 40m
1 stop
CNX17:50Chiang Mai
11 May
CNX18:50Chiang Mai
29h 15m
2 stops
LHR18:05London Heathrow
China Southern
13 May
LHR22:10London Heathrow
37h 40m
1 stop
CNX17:50Chiang Mai
20 May
CNX18:50Chiang Mai
30h 10m
1 stop
LHR19:00London 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 £724. If you aren’t able to travel during the month of October, then book flights to Chiang Mai from London Heathrow Airport during February instead. Flights to Chiang Mai in February, while not as cheap as those in October, still average around £732.

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 £675. 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 £803.

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 £589. If you have a flexible travel schedule, then try to avoid flying at midday when prices are £983 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 £815 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 £600 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 17% cheaper 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

£288

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 £288. The best return flight deal from London Heathrow Airport to Chiang Mai found on momondo in the last 72 hours is £419.
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 £435Free CancellationRating
7.5
94 reviews
Search China Southern flights
China EasternPriceFrom £444Free CancellationRating
7.2
143 reviews
Search China Eastern flights
Air ChinaPriceFrom £482Free CancellationRating
7.1
82 reviews
Search Air China flights
Etihad AirwaysPriceFrom £621Free CancellationRating
7.4
1,184 reviews
Search Etihad Airways flights
Malaysia AirlinesPriceFrom £627Free CancellationRating
7.3
252 reviews
Search Malaysia Airlines flights
EVA AirPriceFrom £702Free CancellationRating
8.4
1,170 reviews
Search EVA Air flights
Thai AirwaysPriceFrom £725Free CancellationRating
7.8
319 reviews
Search Thai Airways 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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