How long is the flight from London to Chiang Rai?

Thai Airways can get you from London to Chiang Rai in just under 14h 55m. Your travel time can differ by up to . Airlines will cover a distance of 5571 mi.

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 £735.

What is the cheapest day to fly from London to Chiang Rai?

Travellers seeking maximum savings on their London to Chiang Rai flight should consider departing on Friday mornings when fares are most often at their lowest. Thursday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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.

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

Leaving on a Thursday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 18% on the overall cost on flights from London to Chiang Rai.

What is the cheapest time of day to fly from LON to CEI?

It’s typically best to fly out from London to Chiang Rai at midday. Doing so could potentially save you 6% on the flight price compared to flying in the morning, which is usually more expensive.

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.

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.

£629+ Flights from London to Chiang Rai

Cheap flight deals from London to Chiang Rai

Round-trip from	£629

16/10-23/10
5 total stops
48h 20m total
London to Chiang Rai

Search Deals

Find flight deals from London to Chiang Rai

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 3 September 2025.

Thu 16/1005:45LGW - CEI

3 stops28h 10mMultiple Airlines

Thu 23/1016:25CEI - LGW

2 stops20h 10mMultiple Airlines

Deal found 1/9£629

Wed 1/1015:35LHR - CEI

2 stops20h 45mMultiple Airlines

Wed 8/1018:55CEI - LHR

2 stops29h 05mMultiple Airlines

Deal found 1/9£676

Wed 1/1014:55LGW - CEI

2 stops21h 25mMultiple Airlines

Wed 8/1013:40CEI - LGW

2 stops47h 00mMultiple Airlines

Deal found 1/9£677

Thu 16/1009:30LHR - CEI

2 stops18h 10mMultiple Airlines

Thu 23/1018:55CEI - LHR

2 stops26h 20mMultiple Airlines

Deal found 1/9£730

Wed 1/1014:55STN - CEI

2 stops24h 10mMultiple Airlines

Wed 8/1008:35CEI - STN

2 stops34h 20mMultiple Airlines

Deal found 1/9£752

Mon 10/1120:15LHR - CEI

2 stops39h 05mMultiple Airlines

Wed 27/518:55CEI - LHR

2 stops19h 25mMultiple Airlines

Deal found 2/9£770

Wed 1/1021:25LHR - CEI

1 stop14h 55mThai Airways

Wed 8/1018:55CEI - LHR

1 stop30h 20mThai Airways

Deal found 1/9£773

Thu 16/1012:30LHR - CEI

1 stop23h 50mThai Airways

Thu 23/1013:40CEI - LHR

1 stop23h 35mThai Airways

Deal found 1/9£827

Mon 10/1107:40LHR - CEI

2 stops27h 40mLufthansa

Wed 27/518:55CEI - LHR

2 stops19h 20mLufthansa

Deal found 1/9£963

Thu 16/1014:55STN - CEI

2 stops21h 25mMultiple Airlines

Thu 23/1016:25CEI - STN

2 stops26h 30mMultiple Airlines

Deal found 1/9£964

Mon 10/1111:50LHR - CEI

1 stop23h 30mThai Airways

Wed 27/510:25CEI - LHR

1 stop14h 45mThai Airways

Deal found 1/9£1,330

Best flights from London to Chiang Rai
Discover carefully curated flight deals from London to Chiang Rai that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 3 September 2025.

Thu 16/1005:45LGW - CEI

3 stops28h 10mMultiple Airlines

Thu 23/1016:25CEI - LGW

2 stops20h 10mMultiple Airlines

Deal found 1/9£629

Wed 1/1021:25LHR - CEI

1 stop14h 55mThai Airways

Wed 8/1018:55CEI - LHR

1 stop30h 20mThai Airways

Deal found 1/9£773

Mon 10/1107:40LHR - CEI

2 stops27h 40mLufthansa

Wed 27/518:55CEI - LHR

2 stops19h 20mLufthansa

Deal found 1/9£963

Wed 1/1015:35LHR - CEI

2 stops20h 45mMultiple Airlines

Wed 8/1018:55CEI - LHR

2 stops29h 05mMultiple Airlines

Deal found 1/9£676

Wed 1/1014:55LGW - CEI

2 stops21h 25mMultiple Airlines

Wed 8/1013:40CEI - LGW

2 stops47h 00mMultiple Airlines

Deal found 1/9£677

Thu 16/1012:30LHR - CEI

1 stop23h 50mThai Airways

Thu 23/1013:40CEI - LHR

1 stop23h 35mThai Airways

Deal found 1/9£827

Thu 16/1009:30LHR - CEI

2 stops18h 10mMultiple Airlines

Thu 23/1018:55CEI - LHR

2 stops26h 20mMultiple Airlines

Deal found 1/9£730

Wed 1/1014:55STN - CEI

2 stops24h 10mMultiple Airlines

Wed 8/1008:35CEI - STN

2 stops34h 20mMultiple Airlines

Deal found 1/9£752

Mon 10/1120:15LHR - CEI

2 stops39h 05mMultiple Airlines

Wed 27/518:55CEI - LHR

2 stops19h 25mMultiple Airlines

Deal found 2/9£770

Mon 10/1111:50LHR - CEI

1 stop23h 30mThai Airways

Wed 27/510:25CEI - LHR

1 stop14h 45mThai Airways

Deal found 1/9£1,330

Thu 16/1014:55STN - CEI

2 stops21h 25mMultiple Airlines

Thu 23/1016:25CEI - STN

2 stops26h 30mMultiple Airlines

Deal found 1/9£964

Last-minute flights from London to Chiang Rai
Discover last-minute flight deals from London to Chiang Rai. Data last updated 3 September 2025 and is based on user searches.

Wed 1/1015:35LHR - CEI

2 stops20h 45mMultiple Airlines

Wed 8/1018:55CEI - LHR

2 stops29h 05mMultiple Airlines

Deal found 1/9£676

Wed 1/1014:55LGW - CEI

2 stops21h 25mMultiple Airlines

Wed 8/1013:40CEI - LGW

2 stops47h 00mMultiple Airlines

Deal found 1/9£677

Wed 1/1014:55STN - CEI

2 stops24h 10mMultiple Airlines

Wed 8/1008:35CEI - STN

2 stops34h 20mMultiple Airlines

Deal found 1/9£752

Wed 1/1021:25LHR - CEI

1 stop14h 55mThai Airways

Wed 8/1018:55CEI - LHR

1 stop30h 20mThai Airways

Deal found 1/9£773

Thu 16/1005:45LGW - CEI

3 stops28h 10mMultiple Airlines

Thu 23/1016:25CEI - LGW

2 stops20h 10mMultiple Airlines

Deal found 1/9£629

Thu 16/1009:30LHR - CEI

2 stops18h 10mMultiple Airlines

Thu 23/1018:55CEI - LHR

2 stops26h 20mMultiple Airlines

Deal found 1/9£730

Thu 16/1012:30LHR - CEI

1 stop23h 50mThai Airways

Thu 23/1013:40CEI - LHR

1 stop23h 35mThai Airways

Deal found 1/9£827

Thu 16/1014:55STN - CEI

2 stops21h 25mMultiple Airlines

Thu 23/1016:25CEI - STN

2 stops26h 30mMultiple Airlines

Deal found 1/9£964

Fly from

Fly to

Route

Depart

Return

Price

LondonChiang Rai

LGW - CEI

LGWCEI

London Gatwick

Thu 16/10

05:45-15:55

3 stops28h 10m

Chiang Rai

Thu 23/10

16:25-06:35

2 stops20h 10m

£629

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Wed 1/10

15:35-18:20

2 stops20h 45m

Chiang Rai

Wed 8/10

18:55-18:00

2 stops29h 05m

£676

LondonChiang Rai

LGW - CEI

LGWCEI

London Gatwick

Wed 1/10

14:55-18:20

2 stops21h 25m

Chiang Rai

Wed 8/10

13:40-06:40

2 stops47h 00m

£677

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Thu 16/10

09:30-09:40

2 stops18h 10m

Chiang Rai

Thu 23/10

18:55-15:15

2 stops26h 20m

£730

LondonChiang Rai

STN - CEI

STNCEI

London Stansted

Wed 1/10

14:55-21:05

2 stops24h 10m

Chiang Rai

Wed 8/10

08:35-12:55

2 stops34h 20m

£752

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Mon 10/11

20:15-18:20

2 stops39h 05m

Chiang Rai

Wed 27/5

18:55-08:20

2 stops19h 25m

£770

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Wed 1/10

21:25-18:20

1 stop14h 55m

Chiang Rai

Wed 8/10

18:55-19:15

1 stop30h 20m

£773

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Thu 16/10

12:30-18:20

1 stop23h 50m

Chiang Rai

Thu 23/10

13:40-07:15

1 stop23h 35m

£827

LondonChiang Rai

LHR - CEI

LHRCEI

London Heathrow

Mon 10/11

07:40-18:20

2 stops27h 40m

Chiang Rai

Wed 27/5

18:55-08:15

2 stops19h 20m

£963

LondonChiang Rai

STN - CEI

STNCEI

London Stansted

Thu 16/10

14:55-18:20

2 stops21h 25m

Chiang Rai

Thu 23/10

16:25-12:55

2 stops26h 30m

£964

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Showing 1-10 of 11 results

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 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

7.8

Good

346 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Thai Airways

7.8

Good

346 reviews

Thai Airways

7.8

Good

346 reviews

Check prices

Reviews

1 / 18

10.0

Excellent

Joe,Jun 2025

BKK - TPE

The flight was very comfortable, and I really appreciated that each seat had an electric outlet to charge devices. The staff was great.

Related info for your journey

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.
How long is the flight from London to Chiang Rai?
Thai Airways can get you from London to Chiang Rai in just under 14h 55m. Your travel time can differ by up to . Airlines will cover a distance of 5571 mi.
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 £735.
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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for London to Chiang Rai

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Bristol to Suvarnabhumi flights

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London City to Chiang Mai flights

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Liverpool to Suvarnabhumi flights

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Edinburgh to Phuket City flights

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Edinburgh to Don Mueang Intl flights

Newcastle upon Tyne to Phuket City flights

Norwich to Suvarnabhumi flights

Gatwick to Rayong flights

Birmingham to Ko Samui flights

Edinburgh to Ko Samui flights

Heathrow to Rayong flights

Top airline flying from London to Chiang Rai

Airline	Cheapest	Average	Flexibility	On-time
Thai Airways	Cheapest£735	Average£797	FlexibilityNo cancel fee	On-time77%	Search Thai Airways flights

Fly with Cheapflights

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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Cheap flights from London to Chiang Rai from £629

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Chiang Rai

Round-trip from

Find flight deals from London to Chiang Rai

Cheapest flights from London to Chiang RaiExplore 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 3 September 2025.

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 3 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from London to Chiang Rai that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from London to Chiang Rai

Reviews of airlines servicing Chiang Rai

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.

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?

How long is the flight from London to Chiang Rai?

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

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

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

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for London to Chiang Rai

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from London to Chiang Rai

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?

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

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

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

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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 3 September 2025.