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Chiang Rai

$3,860+ Cheap flights from Boston (BOS) to Chiang Rai (CEI)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CEI
Nov 5 — Nov 121
Wed 11/5
Wed 11/12
1 adult, Economy
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Cheap flight deals from Boston to Chiang Rai

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) 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 October 6, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$3,860
(Lufthansa)
Provider with most accurate pricing for Boston Logan Intl-Chiang Rai flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Chiang Rai flights.
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From Boston Logan Intl to Chiang Rai
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Find flight deals from Boston to Chiang Rai

Cheapest flights from Boston to Chiang Rai
Explore the most affordable flight options available from Boston to Chiang Rai. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2025.

This Lufthansa deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/98:40 pmBOS - CEI
2 stops33h 40mLufthansa
Thu 11/136:55 pmCEI - BOS
2 stops35h 40mLufthansa
Deal found 10/5$3,860

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston 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 2,558,603 searches. Data last updated October 6, 2025.
Use the filters below to find and compare flights from Boston to Chiang Rai that are best for you.

Fly from

Boston

Fly to

Chiang Rai

Route

Depart

Return

Price

BostonChiang Rai

BOS - CEI

BOSCEI

Boston Logan Intl

Sun 11/9

8:40 pm-6:20 pm

2 stops33h 40m

Chiang Rai

Thu 11/13

6:55 pm-6:35 pm

2 stops35h 40m

$3,860

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/5

  • Most accurate provider: When it comes to deals on Boston-Chiang Rai flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Boston-Chiang Rai flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Boston-Chiang Rai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Chiang Rai flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Chiang Rai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Chiang Rai

Have a flexible travel schedule? Discover the best time to fly to Chiang Rai from Boston with our price prediction graph.
Estimated round-trip 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 Boston to Chiang Rai

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

Currently, January is the cheapest month in which you can book a flight from Boston to Chiang Rai (average of $966). Flying from Boston to Chiang Rai in June is currently the most expensive (average of $1,668). 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.

Related info for your journey

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

  • How long is the flight from Boston to Chiang Rai?

    For as low as $3,860, Lufthansa can have you in Chiang Rai from Boston in 33h 40m. There are 8086 mi between Boston and Chiang Rai.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston 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.

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

    Currently, January is the cheapest month in which you can book a flight from Boston to Chiang Rai (average of $966). Flying from Boston to Chiang Rai in June is currently the most expensive (average of $1,668). 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.

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