CA $851 Cheap Flights from London (LHR) to Chiang Rai (CEI)

View CA $851 flight on Sat, Sep. 13, 2025Opens in a new window

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Cheap flights from London (LHR) to Chiang Rai (CEI)

Prices were available within the past 7 days and start at CA $851 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flight from London to Chiang Rai (LHR - CEI) route information
Origin airport
Heathrow
Destination airport
Chiang Rai Intl.
Distance
8918 km

London to Chiang Rai Flights

The easy way to book your flights from London to Chiang Rai 

With Expedia, it’s simple to find and book flights to Chiang Rai from London whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 13 airlines that cover this route. There are nonstop flights to Chiang Rai Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from London to Chiang Rai today, tomorrow, or this week.  

 

Save dollars with cheap flights from Heathrow, LHR to Chiang Rai Intl., CEI 

Sort your search results by price to find great deals on your flight from London to Chiang Rai—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Chiang Rai from London currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Chiang Rai  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Chiang Rai from London 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Chiang Rai with Expedia today.

Frequently asked questions

How much is a flight from LHR to Chiang Rai Intl. Airport (CEI)?
If you're travelling from Heathrow Airport (LHR) to CEI, round-trip journeys start from . This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year, so don't wait around. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from London Heathrow to Mae Fah Luang - Chiang Rai Intl. Airport?
We understand that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Heathrow Airport (LHR) to Mae Fah Luang - Chiang Rai Intl. Airport that have flexible change policies?
Flights from Heathrow Airport to CEI offering flexible change policies are available from several airlines. Simply use our "No change fees" filter when searching. You'll only need to cover the cost difference between the two flights, without any added fees to worry about.
How many hours is the flight from LHR to CEI?
It takes about 12 hours and 55 minutes to travel from London Heathrow to CEI. If you'd like to get some rest, bring a small pillow, some earplugs and an eye mask.
How far is the flight from London Heathrow to CEI?
The distance is around 9,000 kilometres. Sleep mask? Check. Toothbrush? Double check. We recommend you pack all the essentials for this long-haul Hounslow to Chiang Rai flight.
Which airlines fly direct from LHR to Mae Fah Luang - Chiang Rai Intl. Airport?
If you want to fly straight from Heathrow Airport to Chiang Rai Intl. Airport (CEI), you'll have to book a flight with one or more stops. Unfortunately, there aren't any airlines that fly directly on this route.
Are Heathrow Airport (LHR) to CEI flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from LHR to Mae Fah Luang - Chiang Rai Intl. Airport can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out! If you'd prefer to play it safe and start your trip planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just remember that not all airlines publish their prices so far in advance. Our suggestion? Check back often as prices are updated regularly.

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