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Cheap flights from Chiang Rai to London from £254

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/6. Fares are subject to change and may not be available on all flights or dates of travel.
CEI — LON
21 Apr — 28 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Chiang Rai to London

Enter your travel dates to find the best prices.

Cheapest flights from Chiang Rai to London
Explore the most affordable flight options available from Chiang Rai to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 22 March 2026.

Sun 3/516:25
CEI
-
LHR
2 stops31h 20m
Multiple Airlines
Sun 10/513:15
LHR
-
CEI
2 stops24h 10m
Multiple Airlines
Deal found 19/3£701
Thu 10/915:45
CEI
-
LHR
1 stop33h 45m
Singapore Airlines
Sun 13/911:20
LHR
-
CEI
1 stop25h 25m
Singapore Airlines
Deal found 18/3£1,071
Fri 20/308:30
CEI
-
LHR
1 stop17h 35m
Multiple Airlines
Fri 20/322:35
LHR
-
CEI
2 stops33h 15m
Multiple Airlines
Deal found 18/3£2,864

Find flight deals from Chiang Rai to London

Discover tips and strategies to find the most affordable flight options for your journey from Chiang Rai (CEI) to London (LON). 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 22 March 2026.

Round-trip from

£701

One-way from

£254
3/5-10/5
  • 3/5-10/5
  • 4 total stops
  • 55h 30m total
  • Chiang Rai to London
Search Deals
14/6
  • 14/6
  • 3 total stops
  • 51h 30m total
  • Chiang Rai to London
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Chiang Rai to London 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 22 March 2026.
Use the filters below to find and compare flights from Chiang Rai to London that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight
Fastest return journey

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sun 3/5

16:25-17:45

2 stops31h 20m

London Heathrow

Sun 10/5

13:15-19:25

2 stops24h 10m

£701

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Thu 10/9

15:45-19:30

1 stop33h 45m

London Heathrow

Sun 13/9

11:20-18:45

1 stop25h 25m

£1,071
Cheapest one-way

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sun 14/6

20:35-18:05

3 stops51h 30m

£254

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Mon 24/8

08:25-14:35

3 stops36h 10m

£371

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Sat 22/8

16:25-20:25

2 stops34h 00m

£470

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Wed 26/8

08:25-19:20

1 stop16h 55m

£687
Fastest single journey

Chiang RaiLondon

CEI - LHR

CEILHR

Chiang Rai

Fri 28/8

08:25-19:15

1 stop16h 50m

£783

Flights are sorted by cheapest return flights first.

Deals found on 17/3

Sorted by cheapest first

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

Find useful and relevant information for your journey from Chiang Rai to London. 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 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?

    Singapore Airlines can get you from Chiang Rai to London in just under 33h 45m. Your travel time can differ by up to . Airlines will cover a distance of 5571 mi.

  • 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.

See more FAQs

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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.

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