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Cheap flights from Boston to Chiang Mai from $451

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Chiang Mai departing on 9/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Chiang Mai

Cheap round-trip flights

Korean Air Logo
12:55 pm - 9:55 pmBOS-CNX
22h 00m1 stop
Korean Air Logo
11:15 pm - 10:10 amCNX-BOS
21h 55m1 stop
$967Korean Air
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Thu, Sep 18 - Mon, Sep 22
Cathay Pacific Logo
1:40 am - 6:40 pmBOS-CNX
30h 00m1 stop
Cathay Pacific Logo
7:25 pm - 11:25 pmCNX-BOS
39h 00m1 stop
$975Cathay Pacific
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Mon, Sep 1 - Tue, Sep 23
Delta Logo
9:00 am - 9:55 pmBOS-CNX
25h 55m2 stops
Delta Logo
11:15 pm - 11:58 pmCNX-BOS
35h 43m2 stops
$978Delta
Find Deal
Thu, Sep 18 - Mon, Sep 22
Korean Air Logo
12:55 pm - 9:55 pmBOS-CNX
22h 00m1 stop
Korean Air Logo
11:15 pm - 10:10 amCNX-BOS
21h 55m1 stop
$1,002Korean Air
Find Deal
Tue, Sep 2 - Tue, Sep 23
Cathay Pacific Logo
12:30 am - 6:50 pmBOS-CNX
30h 20m1 stop
Cathay Pacific Logo
10:35 am - 10:00 pmCNX-BOS
23h 25m1 stop
$1,048Cathay Pacific
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Tue, Nov 11 - Wed, Jan 14
Delta Logo
7:00 am - 9:55 pmBOS-CNX
27h 55m2 stops
Delta Logo
11:15 pm - 10:10 amCNX-BOS
21h 55m1 stop
$1,053Delta
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Tue, Sep 2 - Tue, Sep 23
China Eastern Logo
9:59 am - 1:25 pmBOS-CNX
40h 26m2 stops
China Eastern Logo
2:55 pm - 11:56 pmCNX-BOS
44h 01m2 stops
$1,083China Eastern
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Mon, Sep 1 - Sun, Sep 7
Etihad Airways Logo
3:40 pm - 6:05 amBOS-CNX
26h 25m1 stop
Etihad Airways Logo
8:50 am - 2:40 pmCNX-BOS
41h 50m1 stop
$1,109Etihad Airways
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Sun, Feb 1 - Sat, Feb 28
Etihad Airways Logo
3:40 pm - 9:25 amBOS-CNX
29h 45m2 stops
Etihad Airways Logo
8:50 am - 2:40 pmCNX-BOS
41h 50m1 stop
$1,204Etihad Airways
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Sun, Feb 1 - Sat, Feb 28
China Eastern Logo
9:59 am - 1:25 pmBOS-CNX
40h 26m2 stops
China Eastern Logo
2:55 pm - 11:56 pmCNX-BOS
44h 01m2 stops
$1,244China Eastern
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Mon, Sep 1 - Sun, Sep 7

Cathay Pacific flights from Boston to Chiang Mai

Our best Cathay Pacific deals on Boston to Chiang Mai flight tickets
Cathay Pacific
Sep 1
BOS1:40 amBoston Logan Intl
30h 00m
1 stop
CNX6:40 pmChiang Mai
Sep 23
CNX7:25 pmChiang Mai
39h 00m
1 stop
BOS11:25 pmBoston Logan Intl
$975
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Cathay Pacific
Nov 11
BOS12:30 amBoston Logan Intl
30h 20m
1 stop
CNX6:50 pmChiang Mai
Jan 14
CNX10:35 amChiang Mai
23h 25m
1 stop
BOS10:00 pmBoston Logan Intl
$1,048
Find similar
Cathay Pacific
Aug 31
BOS1:40 amBoston Logan Intl
30h 00m
1 stop
CNX6:40 pmChiang Mai
Sep 7
CNX7:25 pmChiang Mai
38h 35m
1 stop
BOS11:00 pmBoston Logan Intl
$1,063
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China Eastern flights from Boston to Chiang Mai

Our best China Eastern deals on Boston to Chiang Mai flight tickets
China Eastern
Sep 1
BOS9:59 amBoston Logan Intl
40h 26m
2 stops
CNX1:25 pmChiang Mai
Sep 7
CNX2:55 pmChiang Mai
44h 01m
2 stops
BOS11:56 pmBoston Logan Intl
$1,083
Find similar
China Eastern
Sep 1
BOS9:59 amBoston Logan Intl
40h 26m
2 stops
CNX1:25 pmChiang Mai
Sep 7
CNX2:55 pmChiang Mai
44h 01m
2 stops
BOS11:56 pmBoston Logan Intl
$1,244
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momondo 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, momondo users made 832,500 searches. Data last updated August 14, 2025.
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

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

Mon 9/1

1:40 am-6:40 pm

1 stop30h 00m

Chiang Mai

Tue 9/23

7:25 pm-11:25 pm

1 stop39h 00m

$975

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 9/18

9:00 am-9:55 pm

2 stops25h 55m

Chiang Mai

Mon 9/22

11:15 pm-11:58 pm

2 stops35h 43m

$978

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 9/2

12:55 pm-9:55 pm

1 stop22h 00m

Chiang Mai

Tue 9/23

11:15 pm-10:10 am

1 stop21h 55m

$1,002

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 11/11

12:30 am-6:50 pm

1 stop30h 20m

Chiang Mai

Wed 1/14

10:35 am-10:00 pm

1 stop23h 25m

$1,048

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 9/2

7:00 am-9:55 pm

2 stops27h 55m

Chiang Mai

Tue 9/23

11:15 pm-10:10 am

1 stop21h 55m

$1,053

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 9/1

9:59 am-1:25 pm

2 stops40h 26m

Chiang Mai

Sun 9/7

2:55 pm-11:56 pm

2 stops44h 01m

$1,083

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 2/1

3:40 pm-6:05 am

1 stop26h 25m

Chiang Mai

Sat 2/28

8:50 am-2:40 pm

1 stop41h 50m

$1,109

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 2/1

3:40 pm-9:25 am

2 stops29h 45m

Chiang Mai

Sat 2/28

8:50 am-2:40 pm

1 stop41h 50m

$1,204

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 9/1

9:59 am-1:25 pm

2 stops40h 26m

Chiang Mai

Sun 9/7

2:55 pm-11:56 pm

2 stops44h 01m

$1,244

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chiang Mai from

How to get the cheapest flight ticket from Boston to Chiang Mai

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Chiang Mai?

If you don’t want to visit Chiang Mai in October, then you should wait until November to fly from Boston, when ticket prices are also cheap, with an average price of $1,142.

What is the cheapest day to depart on your flight to Chiang Mai?

The cheapest day to depart from Boston to Chiang Mai is on a Thursday. Travelers who choose to depart for Chiang Mai on a Thursday will often find tickets for as low as $1,237. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Chiang Mai for around $1,670.

What is the cheapest time of day to depart on your flight to Chiang Mai?

Flying to Chiang Mai from Boston in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,418 when looking at flights departing in the evening. Flights to Chiang Mai are more costly in the afternoon, with an average ticket price of $1,660. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Can stopping save me money on Boston to Chiang Mai flights?

You could potentially save up to 29% on your flight if you consider stops on a Boston to Chiang Mai flight.

When to book flights from Boston to Chiang Mai

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Chiang Mai according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Chiang Mai (BOS to CNX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Chiang Mai

Best Price Found

$451

Fastest flight time

21h 05m

Direct flights

None

Airports in Chiang Mai

1 airport
The best one-way flight to Chiang Mai from Boston in the past 72 hours is $451. The best round-trip flight deal from Boston to Chiang Mai found on momondo in the last 72 hours is $967.
The fastest flight from Boston to Chiang Mai takes 21h 05m
There are no direct flights from Boston to Chiang Mai. Popular non-direct route for this connection is Boston Logan Intl Airport - Chiang Mai Airport.
There is 1 airport near Chiang Mai: Chiang Mai (CNX)
Search flight deals

  • How far is Boston Logan Intl to Chiang Mai by plane?

    The straight-line distance from Boston Logan Intl to Chiang Mai is 8158.8 mi. 21h 05m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Chiang Mai Airport?

    Prices for flights from Boston Logan Intl Airport to Chiang Mai Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Chiang Mai Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Chiang Mai Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Chiang Mai Airport.

  • What documentation or ID do you need to fly to Chiang Mai Airport?

    The necessary travel and health documents for your Chiang Mai Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Boston to Chiang Mai?

Best airlines flying from Boston to Chiang Mai

Compare and see reviews for airlines that fly from Boston to Chiang Mai with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $1,015Free CancellationRating
8.4
1,131 reviews
Search Korean Air flights
Cathay PacificPriceFrom $1,024Free CancellationRating
7.6
968 reviews
Search Cathay Pacific flights
DeltaPriceFrom $1,150Free CancellationRating
8.0
7,980 reviews
Search Delta flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Chiang Mai?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Chiang Mai for you.

Can I find flights from Boston to Chiang Mai with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Chiang Mai flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Chiang Mai?

momondo helps you find the best flight between Boston and Chiang Mai by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Boston to Chiang Mai right now. Can momondo alert me if prices change?

Price alerts on flights to Chiang Mai from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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