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Cheap flights from London to Chiang Rai from £538

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/6. Fares are subject to change and may not be available on all flights or dates of travel.
LON — CEI
20 May — 27 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Chiang Rai

Enter your travel dates to find the best prices.

Cheapest flights from London to Chiang Rai
Explore the most affordable flight options available from London to Chiang Rai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 20 April 2026.

Sat 20/616:15
LHR
-
CEI
2 stops21h 10m
Multiple Airlines
Sat 27/608:25
CEI
-
LHR
2 stops29h 05m
Multiple Airlines
Deal found 17/4£538
Mon 1/605:55
STN
-
CEI
3 stops27h 00m
Multiple Airlines
Mon 8/608:25
CEI
-
STN
3 stops36h 35m
Multiple Airlines
Deal found 17/4£606
Tue 10/1109:25
LGW
-
CEI
3 stops25h 50m
Multiple Airlines
Tue 24/1110:25
CEI
-
LGW
3 stops27h 00m
Multiple Airlines
Deal found 16/4£612
Wed 28/1010:30
LGW
-
CEI
2 stops22h 25m
Multiple Airlines
Wed 11/1108:40
CEI
-
LGW
1 stop16h 25m
Multiple Airlines
Deal found 17/4£623
Sat 31/1017:00
LGW
-
CEI
2 stops32h 10m
Multiple Airlines
Wed 11/1108:40
CEI
-
LGW
1 stop16h 25m
Multiple Airlines
Deal found 17/4£638
Mon 1/616:15
LHR
-
CEI
2 stops21h 10m
Multiple Airlines
Mon 8/608:25
CEI
-
LHR
2 stops34h 15m
Multiple Airlines
Deal found 17/4£639
Mon 26/1010:30
LGW
-
CEI
2 stops22h 25m
Multiple Airlines
Wed 11/1108:40
CEI
-
LGW
1 stop16h 25m
Multiple Airlines
Deal found 17/4£639
Wed 28/1010:30
LGW
-
CEI
2 stops22h 25m
Multiple Airlines
Thu 12/1108:40
CEI
-
LGW
1 stop20h 45m
Multiple Airlines
Deal found 17/4£640
Wed 7/1016:15
LHR
-
CEI
2 stops21h 10m
Multiple Airlines
Mon 12/1008:25
CEI
-
LHR
2 stops34h 15m
Multiple Airlines
Deal found 20/4£644
Mon 1/609:15
LGW
-
CEI
2 stops23h 40m
Multiple Airlines
Mon 8/608:25
CEI
-
LGW
2 stops29h 20m
Multiple Airlines
Deal found 17/4£646
Thu 4/606:30
STN
-
CEI
3 stops30h 55m
Multiple Airlines
Thu 11/608:25
CEI
-
STN
3 stops39h 45m
Multiple Airlines
Deal found 20/4£648
Thu 4/608:40
LGW
-
CEI
3 stops28h 45m
Multiple Airlines
Thu 11/608:25
CEI
-
LGW
2 stops28h 30m
Multiple Airlines
Deal found 20/4£649

Find flight deals from London to Chiang Rai

Discover tips and strategies to find the most affordable flight options for your journey from London (LON) to Chiang Rai (CEI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 20 April 2026.

Round-trip from

£538
20/6-27/6
  • 20/6-27/6
  • 4 total stops
  • 50h 15m total
  • London to Chiang Rai
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Chiang Rai that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 April 2026.
Use the filters below to find and compare flights from London to Chiang Rai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sat 20/6

16:15-19:25

2 stops21h 10m

Chiang Rai

Sat 27/6

08:25-07:30

2 stops29h 05m

£538

LondonChiang Rai

STN - CEI

STNCEI

London Stansted

Mon 1/6

05:55-14:55

3 stops27h 00m

Chiang Rai

Mon 8/6

08:25-15:00

3 stops36h 35m

£606

LondonChiang Rai

STN - CEI

STNCEI

London Stansted

Thu 4/6

06:30-19:25

3 stops30h 55m

Chiang Rai

Thu 11/6

08:25-18:10

3 stops39h 45m

£648

LondonChiang Rai

LGW - CEI

LGWCEI

London Gatwick

Thu 4/6

08:40-19:25

3 stops28h 45m

Chiang Rai

Thu 11/6

08:25-06:55

2 stops28h 30m

£649

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Thu 8/10

14:40-19:25

2 stops22h 45m

Chiang Rai

Thu 22/10

08:25-07:30

2 stops29h 05m

£663

LondonChiang Rai

LGW - CEI

LGWCEI

London Gatwick

Sat 20/6

09:00-13:10

2 stops22h 10m

Chiang Rai

Sat 27/6

18:55-06:40

2 stops41h 45m

£713

LondonChiang Rai

LGW - CEI

LGWCEI

London Gatwick

Thu 8/10

08:10-15:55

2 stops25h 45m

Chiang Rai

Thu 22/10

16:25-06:40

2 stops20h 15m

£718

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sun 17/5

09:30-19:25

2 stops27h 55m

Chiang Rai

Sun 24/5

15:25-19:30

3 stops34h 05m

£735

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Sun 3/5

09:30-09:40

2 stops18h 10m

Chiang Rai

Thu 11/6

18:55-13:15

2 stops24h 20m

£751

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Thu 4/6

09:30-16:00

3 stops24h 30m

Chiang Rai

Thu 11/6

10:35-07:00

3 stops26h 25m

£766

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 17 resultsSorted by cheapest first
1
2

Best time to book a flight from London to Chiang Rai

Have a flexible travel schedule? Discover the best time to fly to Chiang Rai from London with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from London to Chiang Rai
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Chiang Rai

Get insights into the airlines that provide service to Chiang Rai. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Chiang Rai. Reviews last updated 20 April 2026.
Get a feel of what it's like to fly with Thai Airways from London to Chiang Rai by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Thai Airways
7.9
Good
400 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.9

Entertainment

6.9

Food

7.4

Comfort

7.7

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing
Thai Airways
7.9
Good
400 reviews
Thai Airways
7.9
Good
400 reviews
Check prices

Boarding

7.9

Crew

8.4

Overall

7.9

Entertainment

6.9

Food

7.4

Comfort

7.7

Reviews

1 / 20
10.0
Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Related info for your journey

Find useful and relevant information for your journey from London to Chiang Rai. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Chiang Rai from London?

    Located just 4.5 mi from the city center, Chiang Rai is the airport most travelers will use when flying to Chiang Rai from London. Booking flights from London to Chiang Rai (CEI) should be relatively easy as there are 0 daily inbound flights from London from 1 airline.

  • What is the cheapest airline to fly from London to Chiang Rai round-trip?

    Flying on Thai Airways is currently your cheapest option to Chiang Rai, with prices starting at £767.

  • What are the most popular routes from London to Chiang Rai?

    Most travelers choose London Heathrow - Chiang Rai, London Gatwick - Chiang Rai or London Stansted - Chiang Rai when deciding on the best route from London to Chiang Rai.

  • Can I find deals for flights from London to Chiang Rai that include hotel bookings?

    Yes. In addition to deals on London to Chiang Rai flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Chiang Rai?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Chiang Rai.

  • Can I find deals for business class flights from London to Chiang Rai?

    Yes. Cheapflights offers flight deals from London to Chiang Rai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for London to Chiang Rai

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from London to Chiang Rai

Discover the top airline that operate flights from London to Chiang Rai. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Thai AirwaysCheapest£767Average£923FlexibilityNo cancel feeOn-time77%
Search Thai Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from London to Chiang Rai?

Cheapflights helps you search for flights from London to Chiang Rai via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to Chiang Rai?

Cheapflights simply makes it quick and affordable to book flights from London to Chiang Rai by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from London to Chiang Rai with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from London to Chiang Rai flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from London to Chiang Rai become cheaper?

Yes, Cheapflights offers price alerts on London to Chiang Rai flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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