What to know about flights from Chiang Mai to London?

The distance between Chiang Mai and London is approximately 8,991.93km. According to Trip.com data, travel demand is highest in January. October is generally the cheapest month to book.

Cheapest one-way
£135
Etihad Airways Etihad Airways CNX-LON 28h 30m · 1 stop Thu, Nov 5
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Cheapest return
£436
Etihad Airways Etihad Airways CNX-LON 33h 55m · 2 stops Fri, Nov 6 - Mon, Nov 9
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Best time to book
December
Cheapest
January
Peak season for travel
Route details
8,991.93km
Flight distance

Explore the cheapest one-way and round-trip flights from Chiang Mai to London over the next 90 days, with one-way fares from £135 and round-trip from £436. Based on Trip.com's latest 7-day flight data.

Which airlines are the most popular for Chiang Mai to London flights?

The most popular airlines flying from Chiang Mai to London are Thai Airways, Etihad Airways, and China Eastern Airlines, among 9 carriers on this route. Etihad Airways offers the lowest fares. Based on Trip.com's flight booking data from the previous 12 months.
Thai Airways logo Thai Airways
Etihad Airways logo Etihad Airways
China Eastern Airlines logo China Eastern Airlines
Air China logo Air China
Thai Vietjet Air logo Thai Vietjet Air
EVA Air logo EVA Air
China Southern Airlines logo China Southern Airlines
Bangkok Airways logo Bangkok Airways
Malaysia Airlines logo Malaysia Airlines
Airlines are determined based on actual purchased flight tickets from Chiang Mai to London according to previous 12 months data from Trip.com.

Trip.com Price Insights on Chiang Mai to London Flights

What is the cheapest month to book a one-way flight from Chiang Mai to London?

Average price of one-way tickets from Chiang Mai to London booked on Trip.com over the past 12 months.

For a one-way flight from Chiang Mai to London, fares are lowest in December (£292) and highest in April (£547).

£547
£420
£292
£165
    Cheapest
  • £387
    Oct
  • £312
    Nov
  • £292
    Dec
  • £483
    Jan
  • £513
    Feb
  • £369
    Mar
  • £547
    Apr
  • £486
    May
  • £428
    Jun
  • £414
    Jul
  • £497
    Aug
  • £450
    Sep

What is the cheapest month to book a return flight from Chiang Mai to London?

Average price of return tickets from Chiang Mai to London booked on Trip.com over the past 12 months.

For a return flight from Chiang Mai to London, fares are lowest in March (£491) and highest in October (£1,308).

£1,308
£900
£491
£83
    Cheapest
  • £1,308
    Oct
  • £587
    Nov
  • £749
    Dec
  • £1,247
    Jan
  • £1,007
    Feb
  • £491
    Mar
  • £944
    Apr
  • £976
    May
  • £809
    Jun
  • £932
    Jul
  • £1,037
    Aug
  • £1,270
    Sep

Flight FAQs

  • Which airlines offer the cheapest flights from Chiang Mai to London?

    Based on Trip.com data, Etihad Airways offers Cheapest nonstop one-way flights from £135 (for example, CNX–LHR on Thu, Nov 5). For a Cheapest nonstop return flight, Etihad Airways offers fares from £436, departing on Fri, Nov 6 and returning on Mon, Nov 9.
  • At the moment, you can catch a direct flight from Chiang Mai to London with the following airlines, including: Thai Airways Thai Vietjet Air Bangkok Airways EVA Air Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Chiang Mai to London 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.
  • Here are some tips for finding the best flight deals from Chiang Mai to London on Trip.com:
    · Be flexible with your travel dates. The cheapest flight is currently on Thu, Nov 5, with one-way fares from just £135.
    · Compare airlines. Etihad Airways currently offers the lowest fares on this route.
    · Set up a price alert to track fare changes without searching every day.
    · Check Trip.com regularly for flight deals and available promo codes.
    · Avoid peak season or book early. January is generally the busiest month for travel to London.
    · Get exclusive promo codes on the Trip.com app.
  • The cheapest month to book a flight from Chiang Mai to London is usually October, when demand is lower.
  • After crunching the numbers on our October flight calendar, it's currently cheapest to fly from Chiang Mai to London on October 26, 2026 with Etihad Airways, with prices starting at £134.
  • Flights to London can arrive at: London City Airport (LCY), London Gatwick Airport (LGW), Heathrow Airport (LHR), London Luton Airport (LTN), London Southend Airport (SEN) and London Stansted Airport (STN). The most common route connects Chiang Mai International Airport and Heathrow Airport (CNX–LHR).
  • The time difference between London and Chiang Mai is 7h.
  • 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.
  • Based on Trip.com data for flights departing in the next 30 days, the average one-way fare from Chiang Mai to London is £496. Fares vary by travel date, airline and availability.
  • Enter Chiang Mai and London, 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.
  • Thai Vietjet Airare the most popular budget airlines flying from Chiang Mai to London. Check baggage, seat and payment fees before comparing the final price.

Note: Prices shown on this page are the estimated lowest prices and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed on this page are all-inclusive (including taxes, fuel surcharges, civil aviation development fund, etc.), with all fees confirmed before payment. Fees for luggage, meals, Wi-Fi, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours—sometimes even in real time. The more popular the route, the more accurate the data.

Change & Cancellation Policy

Trip.com shows the cancellation and change policies for each flight ticket during the booking process, including any fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply according to the airline's ticket policy.
Cancellation/change due to a flight schedule change:
If the flight schedule has changed 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 visit the customer support pages.