Cheap Flights London to Chiang Mai from £241

Flight FAQs

• Which airlines offer the cheapest flights from London (LON) to Chiang Mai (CNX)?

  Based on Trip.com data, Air China offers one-way fares as low as £241 on Cheapest nonstop routes (e.g. LGW to CNX on Sun, Sep 20), while Air China offers Cheapest nonstop round-trips from £359 departing on Sun, Aug 30 and returning on Mon, Sep 7.

• Which airlines offer direct flights from London to Chiang Mai?

  At the moment, you can catch a direct flight from London to Chiang Mai with the following airlines, including: Gulf Air Thai Airways EVA Air Vueling Airlines Air China Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

• When is the best time to book flights from London to Chiang Mai?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Chiang Mai is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from London to Chiang Mai?

  To find best deals on flights from London to Chiang Mai, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Sep 20, with one-way flights priced at just £241.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air China.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Chiang Mai travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When is the best time to book a flight from London to Chiang Mai to get the best price?

  The cheapest months to fly from London to Chiang Mai is November, when demand for travel is lower.

• Which upcoming date is the cheapest for flights from London to Chiang Mai?

  After crunching the numbers on our August flight calendar, it's currently cheapest to fly from London to Chiang Mai on August 21, 2026 with Air China, with prices starting at £250.

• Which airports can I fly through when travelling to Chiang Mai from London?

  You can land at any one of the following hubs in Chiang Mai, with Heathrow Airport to Chiang Mai International Airport (LHR-CNX) is by far the most common option on this route: Chiang Mai International Airport (CNX).

• What is the time difference between London and Chiang Mai?

  The time difference between Chiang Mai and London is 7h.

• How can I change or cancel my flight ticket from London to Chiang Mai?

  Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

• What is the average cost of a one-way flight from London to Chiang Mai?

  Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from London to Chiang Mai is £525. Fares vary by travel date, airline and availability.

• How do I book flights from London to Chiang Mai on Trip.com?

  Enter London and Chiang Mai, choose your travel dates and passengers, then compare flights by price, duration and baggage. Select a fare, review the change and cancellation rules, enter traveller details and complete payment to receive your confirmation.

• Are there budget airlines on the London to Chiang Mai route?

  Norwegian Air Sweden AOC, Ryanair and Vueling Airlinesare the most popular budget airlines flying from London to Chiang Mai. Check baggage, seat and payment fees before comparing the final price.