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Chiang Mai

$530+ Cheap flights from Boston (BOS) to Chiang Mai (CNX)

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 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNX
Jul 20 — Jul 271
Mon 7/20
Mon 7/27
1 adult, Economy
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Cheap flight deals from Boston to Chiang Mai

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

This IEagle deal was found by Cheapflights users on 6/17. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:00 am
BOS
-
CNX
1 stop23h 55m
Korean Air
Thu 12/312:15 am
CNX
-
BOS
1 stop20h 25m
Korean Air
Deal found 6/17$949
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/306:00 am
BOS
-
CNX
2 stops28h 55m
Delta
Tue 12/2912:15 am
CNX
-
BOS
2 stops25h 32m
Delta
Deal found 6/15$1,010
This Delta deal was found by Cheapflights users on 6/16. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/127:30 am
BOS
-
CNX
2 stops27h 25m
Delta
Fri 2/1912:15 am
CNX
-
BOS
2 stops31h 06m
Delta
Deal found 6/16$1,118
This Justfly.com deal was found by Cheapflights users on 6/16. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:25 am
BOS
-
CNX
2 stops44h 00m
China Eastern
Fri 9/182:55 pm
CNX
-
BOS
2 stops41h 13m
China Eastern
Deal found 6/16$1,151
This FlightHub deal was found by Cheapflights users on 6/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1810:00 pm
BOS
-
CNX
2 stops31h 15m
Multiple Airlines
Mon 11/97:45 pm
CNX
-
BOS
2 stops30h 35m
Multiple Airlines
Deal found 6/16$1,160
This Korean Air deal was found by Cheapflights users on 6/16. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:00 am
BOS
-
CNX
2 stops28h 55m
Korean Air
Fri 2/1912:15 am
CNX
-
BOS
1 stop20h 25m
Korean Air
Deal found 6/16$1,189
This oojo deal was found by Cheapflights users on 6/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/171:45 am
BOS
-
CNX
1 stop29h 55m
Cathay Pacific
Mon 11/910:35 am
CNX
-
BOS
1 stop23h 25m
Cathay Pacific
Deal found 6/19$1,191

Find flight deals from Boston to Chiang Mai

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Chiang Mai (CNX). 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 June 20, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$949
(IEagle)

One-way from

$530
(Korean Air)

Popular in

December

Cheapest in

February

Average price

$1,497
Provider with most accurate pricing for Boston Logan Intl-Chiang Mai flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Chiang Mai flights.
Search Deals
From Boston Logan Intl to Chiang Mai
Search Deals
One-way flight from Boston Logan Intl to Chiang Mai
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($58 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Chiang Mai 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 June 20, 2026.
Use the filters below to find and compare flights from Boston to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 11/12

7:30 am-10:55 pm

2 stops27h 25m

Chiang Mai

Fri 2/19

12:15 am-7:21 pm

2 stops31h 06m

$1,118

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 11/12

6:00 am-10:55 pm

2 stops28h 55m

Chiang Mai

Fri 2/19

12:15 am-8:40 am

1 stop20h 25m

$1,189

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 9/29

11:05 pm-7:10 pm

2 stops33h 05m

Chiang Mai

Fri 10/2

2:35 pm-2:10 pm

2 stops34h 35m

$1,356

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 9/29

5:30 am-8:45 pm

2 stops28h 15m

Chiang Mai

Fri 10/2

9:45 pm-10:10 am

1 stop23h 25m

$1,617

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sat 10/3

10:00 pm-7:10 pm

3 stops34h 10m

Chiang Mai

Sun 10/11

11:55 am-3:15 pm

3 stops38h 20m

$2,397
Quickest round-trip

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 9/28

1:45 am-9:45 am

1 stop21h 00m

Chiang Mai

Fri 10/2

10:30 am-11:05 pm

1 stop23h 35m

$3,317

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 7/3

10:00 pm-7:10 pm

3 stops34h 10m

Chiang Mai

Mon 7/13

12:35 pm-6:15 pm

2 stops40h 40m

$3,330

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 7/3

10:00 pm-7:10 pm

3 stops34h 10m

Chiang Mai

Mon 7/13

4:55 pm-3:15 pm

3 stops33h 20m

$3,976

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 7/30

11:05 pm-1:45 pm

2 stops27h 40m

Chiang Mai

Thu 8/6

8:00 pm-2:10 pm

2 stops29h 10m

$4,390

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 8/10

12:55 pm-8:45 pm

1 stop44h 50m

Chiang Mai

Mon 8/24

9:45 pm-1:52 pm

2 stops27h 07m

$5,441

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/19

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

Compare providers for flights from Boston to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Chiang Mai in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Chiang Mai flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub 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 Mai 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 Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai 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 Mai

How much does it cost to fly round-trip from Boston to Chiang Mai?

Reviews of airlines servicing Chiang Mai

Get insights into the airlines that provide service to Chiang Mai. 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 Mai. Reviews last updated June 20, 2026.
Read through reviews of airlines operating flights from Boston to Chiang Mai, such as Korean Air and Cathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Korean Air
8.4
Very good
1,218 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!
Cathay Pacific
7.6
Good
1,384 reviews
Korean Air
8.4
Very good
1,218 reviews

Crew

8.7

Boarding

8.5

Comfort

8.3

Food

8.1

Entertainment

8.2

Overall

8.4

Reviews

1 / 20
10.0
Excellent

Jacqueline,Aug 2025

ICN - SEA

Well, I was upset at first because I have a special diet and I need to order vegetarian and I couldn’t do it before the trip, but the stewardess were so nice and they gave me sandwiches that were plant-based which I loved!!

Related info for your journey

Find useful and relevant information for your journey from Boston to Chiang Mai. 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 Mai?

    Delta and Korean Air can get you from Boston to Chiang Mai in just under 27h 25m. Your travel time can differ by up to 1h 30m. Airlines will cover a distance of 8159 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boston to Chiang Mai round-trip?

    Currently priced at $764, Cathay Pacific will fly you from Boston to Chiang Mai and back. In addition to Cathay Pacific, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on Korean Air for as low as $1,016. These flights start at 44% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Chiang Mai one-way?

    For one-way options, check prices for Korean Air. According to our data, you can fly for as low as $449. Users have also found prices from $599 and $727 on Delta and Cathay Pacific, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boston to Chiang Mai 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 Boston to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Suvarnabhumi flights
Boston to Phuket City flights
Albany to Suvarnabhumi flights
Boston to Udon Thani flights

Top 2 airlines flying from Boston to Chiang Mai

Discover the top 2 airlines that operate flights from Boston to Chiang Mai. 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 2,558,603 searches. Data last updated June 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$764Average$910FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$1,016Average$1,391FlexibilityNo cancel feeOn-time81%

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