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Chiang Mai

$464+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNX
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This Delta deal was found by Cheapflights users on 1/26. 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.
Sun 12/66:30 pm
BOS
-
CNX
2 stops40h 25m
Delta
Sat 12/1912:15 am
CNX
-
BOS
1 stop20h 25m
Delta
Deal found 1/26$977
This FlightHub deal was found by Cheapflights users on 1/25. 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.
Mon 4/2710:00 pm
BOS
-
CNX
2 stops31h 15m
Multiple Airlines
Fri 5/88:00 pm
CNX
-
BOS
2 stops30h 05m
Multiple Airlines
Deal found 1/25$981
This KAYAK deal was found by Cheapflights users on 1/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/261:45 am
BOS
-
CNX
1 stop29h 55m
Cathay Pacific
Fri 5/810:30 am
CNX
-
BOS
1 stop23h 35m
Cathay Pacific
Deal found 1/25$1,007
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Fri 9/2510:00 pm
BOS
-
CNX
2 stops28h 45m
Multiple Airlines
Mon 10/511:55 am
CNX
-
BOS
2 stops38h 20m
Multiple Airlines
Deal found 1/26$1,021
This Korean Air deal was found by Cheapflights users on 1/26. 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.
Wed 11/411:00 am
BOS
-
CNX
1 stop23h 55m
Korean Air
Sat 11/712:15 am
CNX
-
BOS
1 stop20h 25m
Korean Air
Deal found 1/26$1,032
This FlightHub deal was found by Cheapflights users on 1/25. 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.
Sat 10/310:00 pm
BOS
-
CNX
2 stops28h 45m
Multiple Airlines
Sun 10/118:00 pm
CNX
-
BOS
2 stops30h 15m
Multiple Airlines
Deal found 1/25$1,061
This FlightHub deal was found by Cheapflights users on 1/26. 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.
Fri 5/159:36 pm
BOS
-
CNX
2 stops49h 44m
Multiple Airlines
Wed 5/2711:20 am
CNX
-
BOS
2 stops31h 13m
Multiple Airlines
Deal found 1/26$1,095
This oojo deal was found by Cheapflights users on 1/25. 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.
Sun 4/57:15 am
BOS
-
CNX
2 stops40h 10m
EVA Air
Wed 4/811:35 am
CNX
-
BOS
2 stops28h 52m
EVA Air
Deal found 1/25$1,140

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$981
(FlightHub)

One-way from

$464
(Delta)

Popular in

June

Cheapest in

September

Average price

$1,295
Provider with most accurate pricing for Boston Logan Intl-Chiang Mai flight deals.
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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. 23% potential increase in price ($421 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($73 potential savings vs. average RT price).
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Average for round-trip flights in January 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 January 27, 2026.
Use the filters below to find and compare flights from Boston to Chiang Mai that are best for you.

Fly from

Boston

Fly to

Chiang Mai

Route

Depart

Return

Price

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 4/27

10:00 pm-4:15 pm

2 stops31h 15m

Chiang Mai

Fri 5/8

8:00 pm-3:05 pm

2 stops30h 05m

$981

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 4/26

1:45 am-6:40 pm

1 stop29h 55m

Chiang Mai

Fri 5/8

10:30 am-11:05 pm

1 stop23h 35m

$1,007

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 4/5

7:15 am-10:25 am

2 stops40h 10m

Chiang Mai

Wed 4/8

11:35 am-5:27 am

2 stops28h 52m

$1,140

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 2/9

5:29 am-10:55 pm

2 stops29h 26m

Chiang Mai

Wed 2/11

12:15 am-8:40 am

1 stop20h 25m

$1,153

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 4/27

6:00 am-9:20 am

3 stops40h 20m

Chiang Mai

Fri 5/8

2:35 pm-3:05 pm

2 stops35h 30m

$1,165

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 3/15

7:00 am-10:35 am

2 stops40h 35m

Chiang Mai

Sat 3/21

11:50 am-6:39 am

2 stops29h 49m

$1,168

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 2/9

3:40 pm-11:25 am

3 stops31h 45m

Chiang Mai

Thu 2/12

2:50 pm-2:10 pm

3 stops35h 20m

$1,178

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 3/13

4:40 pm-11:10 am

3 stops31h 30m

Chiang Mai

Fri 3/20

2:20 pm-3:10 pm

3 stops35h 50m

$1,205

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 4/5

4:25 pm-9:20 am

3 stops29h 55m

Chiang Mai

Wed 4/8

5:20 pm-2:40 pm

3 stops32h 20m

$1,214

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 3/15

4:40 pm-9:25 am

2 stops29h 45m

Chiang Mai

Sat 3/21

8:50 am-3:10 pm

1 stop41h 20m

$1,239

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 15 results
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
GurufarePrice Accuracy3 starsTrust Score*3 stars
Justfly.comPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
SmartFaresPrice Accuracy1 starTrust Score*1 star

*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.

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 January 27, 2026.
Read through reviews of airlines operating flights from Boston to Chiang Mai, such as Korean Air, Delta, 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
1,188 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
1,188 reviews
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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!!
Delta
7.9
Good
8,124 reviews
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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
1,147 reviews
Korean Air
8.4
Very good
1,188 reviews

Food

8.1

Overall

8.4

Crew

8.7

Comfort

8.3

Boarding

8.5

Entertainment

8.2

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?

    Cathay Pacific, EVA Air, and Korean Air can get you from Boston to Chiang Mai in just under 29h 26m. Your travel time can differ by up to 10h 44m. 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 $768, 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. Search Cheapflights for deals from Korean Air and Delta - these airlines can fly you to your destination from $978 and $1,019, respectively. 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 $507. Users have also found prices from $599 and $726 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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Top 3 airlines flying from Boston to Chiang Mai

Discover the top 3 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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$768Average$1,386FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$978Average$1,153FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,019Average$1,731FlexibilityNo cancel feeOn-timeN/A

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