BOS - CNX

$451 Find Cheap Flights from Boston to Chiang Mai

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Chiang Mai departing on 2/16. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chiang Mai

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Chiang Mai, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Chiang Mai, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$842
Etihad Airways
Fri 3/6Tue 3/10
BOS - CNX • 2 stops
Cheapest one-way
$451
Typical prices: $612-$768
Delta
Mon 2/16
BOS - CNX • 2 stops
Top airlines
Etihad Airways
Cheapest • from $842 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Chiang Mai!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Chiang Mai (BOS-CNX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Chiang Mai that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Chiang Mai

Fri, Mar 6 - Tue, Mar 10
Etihad Airways Logo
3:40 pm - 9:25 am
BOS
-
CNX
29h 45m2 stops
Etihad Airways Logo
8:50 am - 3:10 pm
CNX
-
BOS
41h 20m1 stop
$842Etihad Airways
Mon, Apr 13 - Sat, Apr 25
Qatar Airways Logo
10:00 pm - 7:10 pm
BOS
-
CNX
34h 10m2 stops
Qatar Airways Logo
10:10 am - 3:05 pm
CNX
-
BOS
39h 55m2 stops
$1,012Qatar Airways
Tue, Jan 20 - Tue, Feb 3
Cathay Pacific Logo
12:30 am - 6:50 pm
BOS
-
CNX
30h 20m1 stop
Cathay Pacific Logo
7:40 pm - 10:00 pm
CNX
-
BOS
38h 20m1 stop
$1,056Cathay Pacific
Wed, Jan 21 - Tue, Feb 3
Qatar Airways Logo
8:40 pm - 1:50 pm
BOS
-
CNX
53h 10m2 stops
Qatar Airways Logo
9:40 pm - 2:20 pm
CNX
-
BOS
52h 40m2 stops
$1,063Qatar Airways
Wed, Jan 21 - Tue, Feb 3
Multiple Airlines Logo
8:40 pm - 1:50 pm
BOS
-
CNX
53h 10m2 stops
Multiple Airlines Logo
9:40 pm - 2:20 pm
CNX
-
BOS
52h 40m2 stops
$1,082Multiple Airlines
Wed, Jan 7 - Tue, Jan 20
China Eastern Logo
10:05 am - 2:20 pm
BOS
-
CNX
40h 15m2 stops
China Eastern Logo
3:35 pm - 9:23 pm
CNX
-
BOS
41h 48m2 stops
$1,084China Eastern
Tue, Jan 20 - Tue, Feb 3
Multiple Airlines Logo
12:30 am - 6:50 pm
BOS
-
CNX
30h 20m1 stop
Multiple Airlines Logo
10:10 am - 10:00 pm
CNX
-
BOS
23h 50m2 stops
$1,129Multiple Airlines
Tue, Jan 20 - Tue, Feb 3
Multiple Airlines Logo
12:30 am - 1:45 pm
BOS
-
CNX
25h 15m2 stops
Multiple Airlines Logo
10:35 am - 10:00 pm
CNX
-
BOS
23h 25m1 stop
$1,135Multiple Airlines
Fri, Jan 30 - Sat, Feb 7
Multiple Airlines Logo
12:30 am - 5:45 pm
BOS
-
CNX
29h 15m2 stops
Multiple Airlines Logo
7:05 am - 10:00 pm
CNX
-
BOS
26h 55m2 stops
$1,137Multiple Airlines
Wed, Jan 21 - Tue, Feb 3
Multiple Airlines Logo
6:40 pm - 11:20 am
BOS
-
CNX
52h 40m3 stops
Multiple Airlines Logo
12:10 pm - 4:20 pm
CNX
-
BOS
40h 10m2 stops
$1,147Multiple Airlines
Booking Insights

KAYAK's insights & trends for Boston to Chiang Mai flights

Get data-powered insights and trends into flights from Boston to Chiang Mai to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Boston to Chiang Mai?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Chiang Mai were found on Etihad Airways ($842) and Cathay Pacific ($1,056).

Which airlines fly non-stop between Boston and Chiang Mai?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Boston to Chiang Mai.

There are 3 airlines that fly nonstop from Boston to Chiang Mai. They are: Cathay Pacific, Delta and Korean Air. The cheapest price of all airlines flying this route was found with Cathay Pacific at $768 for a round-trip flight. On average, the best prices for this route can be found at Korean Air.

Good to know

Low seasonSeptember
Cheapest flight$451
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly and prices are also 19% lower on average.
Flight from Boston to Chiang Mai

When to book flights from Boston to Chiang Mai

Are your dates flexible? Find out the best times to travel from Boston to Chiang Mai based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Chiang Mai

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

    In the last 3 days, the lowest price for a flight from Boston to Chiang Mai was $451 for a one-way ticket and $842 for a round-trip.

  • Do I need a passport to fly between Boston and Chiang Mai?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Chiang Mai.

  • Which airports will I be using when flying from Boston to Chiang Mai?

    Boston airport is called Boston Logan Intl and the only airport in Chiang Mai is Chiang Mai.

  • Which aircraft models fly most regularly from Boston to Chiang Mai?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Chiang Mai?

    oneworld, and SkyTeam are the airline alliances operating flights between Boston and Chiang Mai, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Boston to Chiang Mai, Korean Air or Delta?

    The two airlines most popular with KAYAK users for flights from Boston to Chiang Mai are Korean Air and Delta. With an average price for the route of $1,207 and an overall rating of 8.4, Korean Air is the most popular choice. Delta is also a great choice for the route, with an average price of $1,392 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boston to Chiang Mai?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Chiang Mai.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Chiang Mai?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chiang Mai from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Chiang Mai?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chiang Mai with an airline and back to Boston with another airline. Booking your flights between Boston and CNX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Chiang Mai?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chiang Mai from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Boston to Chiang Mai

 
See real verified KAYAK customer reviews for airlines flying from Boston to Chiang Mai. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Chiang Mai? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.4
Korean AirOverall score based on 1186 reviews
8.5Boarding
8.7Crew
8.1Food
8.2Entertainment
8.3Comfort
Airline reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

10.0 ExcellentVivian, Nov 2025
SEA - ICN
Read more Korean Air reviews

The boarding process was efficient and quick. The seats were comfortable. The food was good. The service was excellent. We had a lovely flight from Seattle on Korean air

Flight crew was fantastic. The aircraft was meticulously cleaned at all times. The crew was continuously checking to see if the passengers were ok.

They were trying to get people to check luggage because the over head compartments were full but when we boarded there were lots of empty places that people could have put the luggage.

It was good, I liked the self-serve snacks but it was a little difficult to get the alcohol, which is understandable since I wouldn't want kids sneaking it.

Friendly flight attendants and gate agents. Very clean plane and food was good!

I was unable to select decent seats, and so I was stuck in the middle seat because it was selected for me

There was a lot of partial tv shows but not enough to last the flight. The food was incredible! The crew were so helpful and patient. Lots more space than what I usually get on an international flight. Very comfortable!

Stingy on the drinks - 15 hour direct flight and could barely get attention for some water

Not many people, so you can lay down on two seats

They did an excellent job helping me with a wheelchair. I couldn’t have asked for any better help.

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

None of the airplane features were available during the flight.

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

one hour transit not good. cathay pacific is not helpful at all

My flight was suppose to be at 7:45pm to fly but it didnt fly out until 8:55 to dallas so then all of my other flights was late and delay ihad to wait at the airport for extra 14 hours to be able to get on a different plane

There were delays at boarding and landing. These events resulted in a tight transfer time in HK. Poor signage for transfers. Finally, lost luggage at final destination.

It was good. The planes needed to be updated though, they were dated and the entertainment systems were old. Service was amazing. The pre-booked meals were lacklustre.

Super delayed. Unnecessary. Need more competent people doing logistics to keep things moving on time. Totally unacceptable.

The morning in Hong Kong was ridiculous. Very chaotic. The flight was delayed. Missed connecting flights. Kathy should be more competent in getting the planes ready ahead of time so that flights can depart on time.. totally ridiculous and unnecessary. Very poor performance.

Flew from lax economy on cathay 777. Seat configuration 3-4-3. When the forward seat reclines it feels like someone is leaning forward and staring you. If you are slightly big tray tables will touch your abdomen even with seats upright. AVOID this above 777 configuration at all cost for a long flight. However their Airbus 350 3-3-3 configuration felt spacious and Seats wider.

It's basically 15 hours with an airline in economy class. There's really not much of anything that could have been done better unless I had a first class ticket. Cathay Pacific does excellent work, with a very professional, friendly and attentive crew. It's literally the only airline that I will fly to Southeast Asia.

Very friendly and accommodating staff. Food was great. Lots of movies and tv shows to choose from. Highly recommend.

Leg room wasn't that great. Other than that it was a good flight

Everything you need to know for your flight from Boston to Chiang Mai

Information on your arrival and departure airports