How long is the flight from Chiang Rai to London?

Thai Airways and Lufthansa can get you from Chiang Rai to London in just under 23h 15m. Your travel time can differ by up to 4h 40m. Airlines will cover a distance of 5571 mi. This flight may include one or multiple stops.

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

Currently, January is the cheapest month in which you can book a flight from Chiang Rai to London (average of £112). Flying from Chiang Rai to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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

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

In terms of precipitation, rainfall in London ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chiang Rai to London as you normally would.

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

Chiang Rai (CEI), located 4.5 mi from the city center, is the airport you fly out of when you book flights from Chiang Rai to London. 0 airlines have flights from Chiang Rai to London on a regular basis. Booking flights from Chiang Rai to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.

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

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

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

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

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

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

£977+ Cheap Flights from Chiang Rai to London

Cheap flight deals from Chiang Rai to London

Round-trip from	£977

Thai Airways
5/3-7/3
2 total stops
42h 20m total
Chiang Rai to London

Search Deals

Find flight deals from Chiang Rai to London

Best flights from Chiang Rai to London
Discover carefully curated flight deals from Chiang Rai to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Thu 5/314:25CEI - LHR

1 stop23h 15mThai Airways

Sat 7/311:50LHR - CEI

1 stop19h 05mThai Airways

Deal found 15/9£977

Thu 5/318:55CEI - LHR

2 stops27h 55mLufthansa

Sat 7/320:15LHR - CEI

2 stops39h 05mLufthansa

Deal found 15/9£1,016

Fly from

Fly to

Route

Depart

Return

Price

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Thu 5/3

14:25-06:40

1 stop23h 15m

London Heathrow

Sat 7/3

11:50-13:55

1 stop19h 05m

£977

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Thu 5/3

18:55-15:50

2 stops27h 55m

London Heathrow

Sat 7/3

20:15-18:20

2 stops39h 05m

£1,016

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Best time to book a flight from Chiang Rai to London

Have a flexible travel schedule? Discover the best time to fly to London from Chiang Rai 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 Chiang Rai to London

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly from for flights from Chiang Rai to London?
Chiang Rai (CEI), located 4.5 mi from the city center, is the airport you fly out of when you book flights from Chiang Rai to London. 0 airlines have flights from Chiang Rai to London on a regular basis. Booking flights from Chiang Rai to London should not be difficult; the airport handles an average of 0 outbound flights to London per day.
How long is the flight from Chiang Rai to London?
Thai Airways and Lufthansa can get you from Chiang Rai to London in just under 23h 15m. Your travel time can differ by up to 4h 40m. Airlines will cover a distance of 5571 mi. This flight may include one or multiple stops.
Can I find deals for flights from Chiang Rai to London that include hotel bookings?
Yes. In addition to deals on Chiang Rai to London flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Chiang Rai to London?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Chiang Rai to London.
Can I find deals for business class flights from Chiang Rai to London?
Yes. Cheapflights offers flight deals from Chiang Rai to London by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Chiang Rai to London?
Currently, January is the cheapest month in which you can book a flight from Chiang Rai to London (average of £112). Flying from Chiang Rai to London in August is currently the most expensive (average of £164). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Milton Keynes

Croydon

Hounslow

Slough

Gatwick

Luton

Deal

Wembley

Ilford

Crawley

Hayes

Watford

Winchester

Chichester

Ipswich

Dartford

Guildford

Brentford

Bishop's Stortford

Romford

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

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

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to London from Chiang Rai today with Cheapflights!

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Chiang Rai to London for you. Better yet — we are completely free to use.

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

Certainly. Search results for flights to London from Chiang Rai shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Of course! You can now track prices for flights from Chiang Rai to London and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Chiang Rai to London from £977

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Chiang Rai to London

Round-trip from

Find flight deals from Chiang Rai to London

Best flights from Chiang Rai to LondonDiscover carefully curated flight deals from Chiang Rai to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Discover carefully curated flight deals from Chiang Rai to London that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2025.

Cheapflights Fare Finder

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