HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Chiang Mai

$486+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CNX
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
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

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 July 29, 2025.

Round-trip from

$938
(oojo)

One-way from

$486
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,601
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. 22% potential increase in price ($400 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($64 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

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 July 29, 2025.

This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1512:55 pmBOS - CNX
1 stop22h 00mKorean Air
Tue 10/2812:15 amCNX - BOS
1 stop20h 25mKorean Air
Deal found 7/27$938
This Delta deal was found by Cheapflights users on 7/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/187:05 amBOS - CNX
2 stops27h 50mDelta
Mon 9/2211:15 pmCNX - BOS
2 stops35h 44mDelta
Deal found 7/28$1,004
This FlightHub deal was found by Cheapflights users on 7/29. 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.
Tue 9/212:55 pmBOS - CNX
1 stop23h 45mMultiple Airlines
Mon 9/2212:45 amCNX - BOS
1 stop20h 25mMultiple Airlines
Deal found 7/29$1,014
This Ovago deal was found by Cheapflights users on 7/27. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/311:40 amBOS - CNX
1 stop30h 00mCathay Pacific
Sun 9/77:25 pmCNX - BOS
1 stop38h 35mCathay Pacific
Deal found 7/27$1,093
This FlightHub deal was found by Cheapflights users on 7/27. 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.
Tue 8/266:50 amBOS - CNX
2 stops43h 35mChina Eastern
Tue 9/22:55 pmCNX - BOS
2 stops44h 01mChina Eastern
Deal found 7/27$1,123
This oojo deal was found by Cheapflights users on 7/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/226:43 pmBOS - CNX
2 stops28h 42mEVA Air
Thu 11/1311:50 amCNX - BOS
2 stops39h 51mEVA Air
Deal found 7/28$1,132
This oojo deal was found by Cheapflights users on 7/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/17:20 amBOS - CNX
2 stops40h 00mChina Airlines
Sun 9/711:20 amCNX - BOS
2 stops38h 40mChina Airlines
Deal found 7/27$1,150

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 July 29, 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

Wed 10/15

12:55 pm-9:55 pm

1 stop22h 00m

Chiang Mai

Tue 10/28

12:15 am-9:40 am

1 stop20h 25m

$938

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Thu 9/18

7:05 am-9:55 pm

2 stops27h 50m

Chiang Mai

Mon 9/22

11:15 pm-11:59 pm

2 stops35h 44m

$1,004

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 9/2

12:55 pm-11:40 pm

1 stop23h 45m

Chiang Mai

Mon 9/22

12:45 am-10:10 am

1 stop20h 25m

$1,014

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 8/31

1:40 am-6:40 pm

1 stop30h 00m

Chiang Mai

Sun 9/7

7:25 pm-11:00 pm

1 stop38h 35m

$1,093

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 8/26

6:50 am-1:25 pm

2 stops43h 35m

Chiang Mai

Tue 9/2

2:55 pm-11:56 pm

2 stops44h 01m

$1,123

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Wed 10/22

6:43 pm-10:25 am

2 stops28h 42m

Chiang Mai

Thu 11/13

11:50 am-3:41 pm

2 stops39h 51m

$1,132

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Mon 9/1

7:20 am-10:20 am

2 stops40h 00m

Chiang Mai

Sun 9/7

11:20 am-3:00 pm

2 stops38h 40m

$1,150

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 8/26

8:23 pm-5:55 pm

3 stops58h 32m

$486

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Tue 8/26

12:55 pm-9:55 pm

1 stop22h 00m

$551

BostonChiang Mai

BOS - CNX

BOSCNX

Boston Logan Intl

Sun 8/24

1:40 am-6:40 pm

1 stop30h 00m

$601

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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, April is the cheapest month in which you can book a flight from Boston to Chiang Mai (average of $1,010). Flying from Boston to Chiang Mai in December is currently the most expensive (average of $1,624). 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 July 29, 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.

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 July 29, 2025.
Read through reviews of airlines operating flights from Boston to Chiang Mai, such as EVA Air, Korean Air, and China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
EVA Air
8.4
Very good
1,221 reviews
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Korean Air
8.4
Very good
1,121 reviews
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
China Airlines
8.3
Very good
754 reviews
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Delta
8.0
Very good
7,979 reviews
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.
Cathay Pacific
7.6
Good
948 reviews
EVA Air
8.4
Very good
1,221 reviews

Food

8.1

Overall

8.4

Boarding

8.4

Entertainment

8.0

Crew

8.6

Comfort

8.3

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

TPE - SEA

The flight and crew were exceptional as always when I fly with EVA.

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.

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

    Currently priced at $938, 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 Delta and Cathay Pacific - these airlines can fly you to your destination from $1,004 and $1,093, respectively. These flights start at 32% 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, April is the cheapest month in which you can book a flight from Boston to Chiang Mai (average of $1,010). Flying from Boston to Chiang Mai in December is currently the most expensive (average of $1,624). 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

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

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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Korean AirCheapest$1,015Average$1,217FlexibilityNo cancel feeOn-time81%
Cathay PacificCheapest$1,024Average$1,621FlexibilityNo cancel feeOn-time72%
DeltaCheapest$1,150Average$1,660FlexibilityNo 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.