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Chiang Mai

$553+ 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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNX
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$872
(Trip.com)

One-way from

$553
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,152
From Boston Logan Intl to Chiang Mai
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One-way flight from Boston Logan Intl to Chiang Mai
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Highest demand for flights based on searches. 22% potential increase in price ($401 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Trip.com deal was found by Cheapflights users on 9/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/293:40 pmBOS - CNX
2 stops41h 50mMultiple Airlines
Sat 12/1310:50 pmCNX - BOS
2 stops51h 20mMultiple Airlines
Deal found 9/10$872
This Trip.com deal was found by Cheapflights users on 9/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:30 pmBOS - CNX
2 stops42h 30mMultiple Airlines
Tue 12/2310:30 pmCNX - BOS
2 stops51h 40mMultiple Airlines
Deal found 9/9$886
This Korean Air deal was found by Cheapflights users on 9/8. 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 9/1812:55 pmBOS - CNX
1 stop22h 00mKorean Air
Mon 9/2211:15 pmCNX - BOS
1 stop21h 55mKorean Air
Deal found 9/8$967
This Delta deal was found by Cheapflights users on 9/10. 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 9/189:00 amBOS - CNX
2 stops25h 55mDelta
Mon 9/2211:15 pmCNX - BOS
2 stops37h 03mDelta
Deal found 9/10$979
This Delta deal was found by Cheapflights users on 9/10. 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 12/16:55 pmBOS - CNX
2 stops40h 00mDelta
Mon 12/812:15 amCNX - BOS
2 stops25h 43mDelta
Deal found 9/10$1,034
This FlightHub deal was found by Cheapflights users on 9/11. 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 10/1910:00 pmBOS - CNX
2 stops26h 15mMultiple Airlines
Fri 10/3110:10 amCNX - BOS
2 stops39h 45mMultiple Airlines
Deal found 9/11$1,057
This oojo deal was found by Cheapflights users on 9/9. 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.
Wed 10/110:00 pmBOS - CNX
2 stops24h 20mMultiple Airlines
Fri 10/3112:10 pmCNX - BOS
2 stops37h 45mMultiple Airlines
Deal found 9/9$1,080

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 September 11, 2025.
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

Thu 9/18

12:55 pm-9:55 pm

1 stop22h 00m

Chiang Mai

Mon 9/22

11:15 pm-10:10 am

1 stop21h 55m

$967

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 9/18

8:10 am-9:55 pm

2 stops26h 45m

Chiang Mai

Mon 9/22

11:15 pm-11:53 pm

2 stops35h 38m

$978

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 10/19

10:00 pm-11:15 am

2 stops26h 15m

Chiang Mai

Fri 10/31

10:10 am-2:55 pm

2 stops39h 45m

$1,057

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Wed 10/1

10:00 pm-9:20 am

2 stops24h 20m

Chiang Mai

Fri 10/31

12:10 pm-2:55 pm

2 stops37h 45m

$1,080

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 10/24

1:40 am-7:55 am

2 stops43h 15m

Chiang Mai

Tue 12/23

10:50 pm-10:00 pm

2 stops35h 10m

$1,081

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 10/19

6:50 am-9:55 pm

2 stops28h 05m

Chiang Mai

Thu 10/30

12:15 am-9:40 am

1 stop20h 25m

$1,190

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 10/10

4:30 pm-7:30 am

3 stops52h 00m

$553

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sat 11/1

7:00 am-4:35 pm

2 stops46h 35m

$648

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 11/2

8:45 pm-1:25 pm

2 stops28h 40m

$774

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 10/31

1:30 am-1:45 pm

2 stops25h 15m

$1,388

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
1
2

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

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

Currently, September is the cheapest month in which you can book a flight from Boston to Chiang Mai (average of $977). Flying from Boston to Chiang Mai in June is currently the most expensive (average of $1,562). 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 time of day to fly from BOS to CNX?

Find hourly flight availability from Boston to Chiang Mai. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Chiang Mai in the evening. If you’re flexible enough to do this you can expect to save up to 15% on your trip compared to booking a flight in the afternoon.

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 September 11, 2025.
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
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
1,139 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
8.0
Very good
7,960 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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
993 reviews
Korean Air
8.4
Very good
1,139 reviews

Boarding

8.5

Crew

8.7

Entertainment

8.2

Overall

8.4

Comfort

8.3

Food

8.1

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?

    Korean Air and Delta can get you from Boston to Chiang Mai in just under 22h. Your travel time can differ by up to 4h 45m. 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 $1,005, Korean Air will fly you from Boston to Chiang Mai and back. In addition to Korean Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Cathay Pacific and Delta - these airlines can fly you to your destination from $1,024 and $1,233, respectively. These flights start at 28% lower than the current average price 3 months from now.

  • 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.

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

    Currently, September is the cheapest month in which you can book a flight from Boston to Chiang Mai (average of $977). Flying from Boston to Chiang Mai in June is currently the most expensive (average of $1,562). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,005Average$1,209FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$1,024Average$1,692FlexibilityNo cancel feeOn-time72%
DeltaCheapest$1,233Average$1,660FlexibilityNo cancel feeOn-timeN/A

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