HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chiang Mai

$921+ 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 5/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNX
May 30 — Jun 61
Sat 5/30
Sat 6/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Chiang Mai with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 April 30, 2026.

This Trip.com deal was found by Cheapflights users on 4/28. 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.
Sun 11/156:40 pm
BOS
-
CNX
3 stops38h 40m
Multiple Airlines
Mon 11/3010:50 pm
CNX
-
BOS
2 stops53h 30m
Multiple Airlines
Deal found 4/28$1,021
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/264:25 pm
BOS
-
CNX
2 stops41h 00m
Multiple Airlines
Tue 6/210:30 pm
CNX
-
BOS
2 stops27h 10m
Multiple Airlines
Deal found 4/26$1,092
This FlightHub deal was found by Cheapflights users on 4/29. 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 10/266:30 am
BOS
-
CNX
2 stops44h 50m
China Eastern
Wed 11/43:35 pm
CNX
-
BOS
2 stops42h 09m
China Eastern
Deal found 4/29$1,151
This FlightHub deal was found by Cheapflights users on 4/29. 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 9/710:00 pm
BOS
-
CNX
2 stops26h 15m
Multiple Airlines
Thu 9/1710:10 am
CNX
-
BOS
2 stops40h 05m
Multiple Airlines
Deal found 4/29$1,153
This FlightHub deal was found by Cheapflights users on 4/30. 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 stops26h 15m
Multiple Airlines
Mon 11/912:10 pm
CNX
-
BOS
2 stops38h 10m
Multiple Airlines
Deal found 4/30$1,162
This Justfly.com deal was found by Cheapflights users on 4/28. 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.
Sun 11/19:05 pm
BOS
-
CNX
2 stops28h 40m
Multiple Airlines
Tue 11/107:45 pm
CNX
-
BOS
2 stops30h 35m
Multiple Airlines
Deal found 4/28$1,163
This KAYAK deal was found by Cheapflights users on 4/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1412:30 am
BOS
-
CNX
1 stop21h 20m
Cathay Pacific
Sun 2/2110:35 am
CNX
-
BOS
1 stop23h 25m
Cathay Pacific
Deal found 4/26$1,200
This FlightHub deal was found by Cheapflights users on 4/30. 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.
Thu 11/129:05 pm
BOS
-
CNX
2 stops33h 55m
Multiple Airlines
Sat 2/2010:10 am
CNX
-
BOS
2 stops40h 10m
Multiple Airlines
Deal found 4/30$1,202
This FlightHub deal was found by Cheapflights users on 4/27. 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 11/159:05 pm
BOS
-
CNX
2 stops33h 55m
Multiple Airlines
Sat 2/2012:10 pm
CNX
-
BOS
2 stops38h 10m
Multiple Airlines
Deal found 4/27$1,206
This Gotogate deal was found by Cheapflights users on 4/29. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:40 pm
BOS
-
CNX
1 stop26h 25m
Etihad Airways
Wed 11/48:50 am
CNX
-
BOS
1 stop41h 20m
Etihad Airways
Deal found 4/29$1,208

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 April 30, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$1,092
(Trip.com)

One-way from

$921
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,155
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. 4% potential increase in price ($61 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 30, 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
Quickest round-trip

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 5/14

11:05 pm-11:15 am

2 stops25h 10m

Chiang Mai

Wed 5/27

8:00 pm-2:10 pm

2 stops29h 10m

$1,369

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 5/14

8:23 pm-7:10 pm

3 stops35h 47m

Chiang Mai

Wed 5/27

8:00 pm-10:26 pm

3 stops37h 26m

$1,707

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Wed 7/15

10:00 pm-11:15 am

2 stops26h 15m

Chiang Mai

Tue 9/1

8:00 pm-3:15 pm

2 stops30h 15m

$1,708

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Fri 7/10

10:00 pm-11:40 am

2 stops50h 40m

Chiang Mai

Tue 9/1

8:00 pm-3:15 pm

2 stops30h 15m

$1,735

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 7/14

10:00 pm-7:10 pm

2 stops34h 10m

Chiang Mai

Wed 8/26

8:00 pm-3:15 pm

2 stops54h 15m

$1,736
Cheapest one-way
Quickest one-way

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sat 5/16

12:01 pm-9:45 am

3 stops34h 44m

$921

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Sorted by cheapest first

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 April.
ProviderPrice AccuracyTrust Score*
OvagoPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 Ovago to be most consistent on Cheapflights vs. Ovago Users can find the same prices on Boston-Chiang Mai flight deals on Cheapflights vs. Ovago >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 Ovago the most. Ovago 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 April 30, 2026.
Read through reviews of airlines operating flights from Boston to Chiang Mai, such as Korean Air,Delta, andCathay Pacific. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
1,216 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
7.9
Good
8,463 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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
1,310 reviews
Korean Air
8.4
Very good
1,216 reviews

Comfort

8.3

Overall

8.4

Entertainment

8.2

Boarding

8.5

Crew

8.7

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?

    Emirates and Qatar Airways can get you from Boston to Chiang Mai in just under 25h 10m. Your travel time can differ by up to 10h 37m. 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. 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 45% 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 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 April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
Cathay PacificCheapest$764Average$987FlexibilityNo cancel feeOn-time72%
Korean AirCheapest$978Average$1,372FlexibilityNo cancel feeOn-time81%
DeltaCheapest$1,019Average$1,854FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2026 Cheapflights