United Kingdom
GBP

LHR - CEI

£734 Find Cheap Flights from London Heathrow Airport to Chiang Rai – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£734
Typical prices: £969-£1,282
Multiple Airlines
Sun 11/3Sun 25/3
LHR - CEI • 2 stops
Direct flights
Not available
There are currently no direct flights between London Heathrow Airport and Chiang Rai. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 38% price drop
August
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Chiang Rai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Chiang Rai (LHR-CEI)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Chiang Rai

Thu, 11 Mar - Thu, 25 Mar
Multiple Airlines Logo
20:05 - 09:40LHR  London Heathrow-CEI Chiang Rai
30h 35m2 stops Muscat Seeb Bangkok Suvarnabhumi
Multiple Airlines Logo
10:15 - 05:55CEI  Chiang Rai-LHR London Heathrow
26h 40m2 stops Bangkok Suvarnabhumi Muscat Seeb
£734Multiple Airlines
Sat, 27 Feb - Thu, 11 Mar
Multiple Airlines Logo
08:25 - 19:25LHR  London Heathrow-CEI Chiang Rai
28h 00m2 stops Muscat Seeb Bangkok Suvarnabhumi
Multiple Airlines Logo
20:00 - 05:55CEI  Chiang Rai-LHR London Heathrow
40h 55m2 stops Bangkok Suvarnabhumi Muscat Seeb
£741Multiple Airlines
Thu, 28 Jan - Tue, 23 Feb
Multiple Airlines Logo
20:05 - 13:55LHR  London Heathrow-CEI Chiang Rai
34h 50m2 stops Muscat Seeb Bangkok Suvarnabhumi
Multiple Airlines Logo
14:25 - 18:25CEI  Chiang Rai-LHR London Heathrow
35h 00m2 stops Bangkok Suvarnabhumi Muscat Seeb
£741Multiple Airlines
Thu, 11 Mar - Thu, 25 Mar
Multiple Airlines Logo
06:50 - 13:55LHR  London Heathrow-CEI Chiang Rai
24h 05m3 stops Brussels Bruxelles-National Chongqing Jiangbei Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
14:25 - 06:35CEI  Chiang Rai-LHR London Heathrow
23h 10m2 stops Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl
£782Multiple Airlines
Sat, 27 Feb - Thu, 11 Mar
Multiple Airlines Logo
21:10 - 07:55LHR  London Heathrow-CEI Chiang Rai
27h 45m2 stops Shenzhen Bangkok Suvarnabhumi
Multiple Airlines Logo
08:30 - 19:35CEI  Chiang Rai-LHR London Heathrow
18h 05m1 stop Bangkok Suvarnabhumi
£807Multiple Airlines
Thu, 28 Jan - Tue, 23 Feb
Multiple Airlines Logo
22:00 - 07:55LHR  London Heathrow-CEI Chiang Rai
26h 55m2 stops Guangzhou Baiyun Bangkok Suvarnabhumi
Multiple Airlines Logo
20:00 - 06:40CEI  Chiang Rai-LHR London Heathrow
17h 40m1 stop Bangkok Suvarnabhumi
£814Multiple Airlines
Thu, 11 Mar - Thu, 25 Mar
Multiple Airlines Logo
22:30 - 07:55LHR  London Heathrow-CEI Chiang Rai
26h 25m2 stops Shenzhen Bangkok Suvarnabhumi
Multiple Airlines Logo
08:30 - 19:05CEI  Chiang Rai-LHR London Heathrow
17h 35m1 stop Bangkok Suvarnabhumi
£853Multiple Airlines
Fri, 11 Dec - Mon, 21 Dec
Gulf Air Logo
09:30 - 18:20LHR  London Heathrow-CEI Chiang Rai
25h 50m2 stops Manama Bahrain Intl Bangkok Suvarnabhumi
Gulf Air Logo
14:25 - 14:45CEI  Chiang Rai-LHR London Heathrow
31h 20m2 stops Bangkok Suvarnabhumi Manama Bahrain Intl
£907Gulf Air
Thu, 28 Jan - Tue, 23 Feb
Thai Airways Logo
11:50 - 18:20LHR  London Heathrow-CEI Chiang Rai
23h 30m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
18:55 - 06:40CEI  Chiang Rai-LHR London Heathrow
18h 45m1 stop Bangkok Suvarnabhumi
£911Thai Airways
Sat, 27 Feb - Thu, 11 Mar
Thai Airways Logo
11:50 - 09:40LHR  London Heathrow-CEI Chiang Rai
14h 50m1 stop Bangkok Suvarnabhumi
Thai Airways Logo
10:15 - 19:35CEI  Chiang Rai-LHR London Heathrow
16h 20m1 stop Bangkok Suvarnabhumi
£914Thai Airways
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Chiang Rai flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from London Heathrow Airport to Chiang Rai?

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from London Heathrow Airport to Chiang Rai. It’s 34% cheaper than the average day, while Thursday is the most expensive, with prices 17% higher.

Find deals

Key details for London Heathrow Airport to Chiang Rai flights

Low season

September

Cheapest flight

£734
Beat the crowds with an average 87% drop in traveller numbers.
Round-trip flight from London Heathrow Airport to Chiang Rai

When to book flights from Heathrow to Chiang Rai

Are your dates flexible? Find out the best times to travel from Heathrow to Chiang Rai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Chiang Rai flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from London Heathrow Airport to Chiang Rai?

    Two cabin classes are available on flights from London Heathrow Airport to Chiang Rai:

    • Economy class
    • Business Class

  • How long is a flight from London Heathrow Airport to Chiang Rai?

    A direct flight from London Heathrow Airport to Chiang Rai takes 00m, covering 5,571 miles.

  • Do I need a passport to fly from London Heathrow Airport to Chiang Rai?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Chiang Rai flight?

    Return flights from London Heathrow Airport to Chiang Rai range from £969 to £1,282, with an average of £1,127 over the past 12 months. Anything below £969 counts as a good deal.

  • Have flight prices from London Heathrow Airport to Chiang Rai changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £734 to £1,605. That means the highest observed fare was about 2x higher than the lowest one.

  • Which car hire options are available at Chiang Rai Airport (CEI)?

    Chiang Rai Airport (CEI) hosts 5 major car hire companies, with daily rates starting from around £10 for economy cars. Top options include:

    • Drive Car Rental
    • Chic Car Rent
    • True Leasing
    • Budget
    • Hertz

  • Which airports can I use when flying from London Heathrow Airport to Chiang Rai?

    Flights from London Heathrow Airport to Chiang Rai usually depart from London Heathrow (LHR) and arrive at Chiang Rai (CEI).

  • Which airports do connecting flights from London Heathrow Airport to Chiang Rai pass through?

    Most connecting flights from London Heathrow Airport to Chiang Rai pass through Bangkok Suvarnabhumi (BKK), which handles 100% of one-stop traffic on this route.

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Chiang Rai?

    Yes. Flexible dates can save you up to 44% on flights from London Heathrow Airport to Chiang Rai. Sunday is the cheapest departure day at £746 return on average, while Thursday is the most expensive at £1,323, a difference of £577.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

  • What is the time difference between London Heathrow Airport and Chiang Rai?

    Chiang Rai is 6 hours ahead of London Heathrow Airport (Indochina Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

Your guide to booking London Heathrow Airport to Chiang Rai flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Sunday departure and avoid flying on Thursday. On this route, Sunday flights average £746, about £577 less than Thursday fares (44% savings) based on the last 12 months.
  • If you can choose when to travel, plan your London Heathrow Airport to Chiang Rai trip for September. Fares historically average £697 return in that month – typically £586 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Heathrow to Chiang Rai

Complete your trip to Chiang Rai with a hotel stay or car hire

Car hire in Chiang Rai
Hotels in Chiang Rai