BOS - CNX

$463 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 1/31. 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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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

Sun, Mar 8 - Thu, Mar 12
Cathay Pacific Logo
1:30 am - 6:50 pmBOS-CNX
30h 20m1 stop
Cathay Pacific Logo
10:35 am - 11:00 pmCNX-BOS
23h 25m1 stop
$786Cathay Pacific
Find Deal
Sun, Mar 8 - Thu, Mar 12
Cathay Pacific Logo
1:30 am - 9:50 amBOS-CNX
21h 20m1 stop
Cathay Pacific Logo
7:40 pm - 11:00 pmCNX-BOS
38h 20m1 stop
$836Cathay Pacific
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
5:40 am - 10:55 pmBOS-CNX
30h 15m2 stops
Delta Logo
12:15 am - 6:32 amCNX-BOS
41h 17m2 stops
$867Delta
Find Deal
Mon, Mar 9 - Wed, Mar 11
Delta Logo
5:30 am - 10:55 pmBOS-CNX
30h 25m2 stops
Delta Logo
12:15 am - 6:32 amCNX-BOS
41h 17m2 stops
$885Delta
Find Deal
Sat, Feb 14 - Sun, Feb 22
Multiple Airlines Logo
8:40 pm - 10:20 pmBOS-CNX
37h 40m2 stops
Multiple Airlines Logo
2:30 pm - 2:20 pmCNX-BOS
59h 50m2 stops
$932Multiple Airlines
Find Deal
Wed, Jan 21 - Tue, Feb 3
Multiple Airlines Logo
8:40 pm - 4:25 pmBOS-CNX
31h 45m2 stops
Multiple Airlines Logo
12:10 pm - 2:20 pmCNX-BOS
38h 10m2 stops
$940Multiple Airlines
Find Deal
Mon, Mar 9 - Wed, Mar 11
Korean Air Logo
12:00 pm - 10:55 pmBOS-CNX
23h 55m1 stop
Korean Air Logo
12:15 am - 9:40 amCNX-BOS
20h 25m1 stop
$1,002Korean Air
Find Deal
Mon, Mar 9 - Wed, Mar 11
Korean Air Logo
6:00 am - 10:55 pmBOS-CNX
29h 55m2 stops
Korean Air Logo
12:15 am - 9:40 amCNX-BOS
20h 25m1 stop
$1,008Korean Air
Find Deal
Mon, Mar 9 - Thu, Mar 12
Etihad Airways Logo
4:40 pm - 9:25 amBOS-CNX
29h 45m2 stops
Etihad Airways Logo
8:50 am - 3:10 pmCNX-BOS
41h 20m1 stop
$1,084Etihad Airways
Find Deal
Tue, Dec 2 - Tue, Dec 9
Etihad Airways Logo
3:40 pm - 6:05 amBOS-CNX
26h 25m1 stop
Etihad Airways Logo
8:50 am - 2:10 pmCNX-BOS
41h 20m1 stop
$1,180Etihad Airways
Find Deal

Everything you should know

Top airlines
Cathay Pacific
Cheapest • from $786 (round-trip)
Korean Air
Best reviews • 8.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
October
Cheapest • 32% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$786
Overall average: $1,261
Cathay Pacific
Sun 3/8Thu 3/12
BOS - CNX • 1 stop
Cheapest one-way
$463
Typical prices: $612-$768
Cathay Pacific
Sat 1/31
BOS - CNX • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Chiang Mai!
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.

What is the cheapest month to fly from Boston to Chiang Mai?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Chiang Mai, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Chiang Mai is October, where tickets cost $1,019 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,824 and $2,098 respectively.

Good to know

Low seasonAugust
Cheapest flight$463
Best time to beat the crowds but there is an average 9% increase in price.
Most popular time to fly and prices are also 25% 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 $463 for a one-way ticket and $786 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 $1,217 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 1157 reviews
8.5Boarding
8.7Crew
8.2Entertainment
8.1Food
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 2025SEA - 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.

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

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

They downgraded me from premium economy to regular economy and me had 2 major lay over and had to have an emergency landing due to engine failure mid flight Don’t use them worst experience I have ever had still dealing with the trauma

Seats in the absolute back row of the plane even though we booked ages ago :( Crew was awesome though

My connecting flight was canceled or never existed. My stopover went from 1 hour and a half to 10 hours. It was a long day that I wasn't prepared for and it would have been nice to know that ahead of time. Cathay is great though. Great staff, entertainment and food.

I was only given 2 meals, and my screen showed that there were 3 meals. Second meal was 1-2 hours late according to the screen.

Paid a premium a have a shorter transit time in Hong Kong, but Cathay pacific rebooked me and ended up waiting for 10 hrs in Hong Hong airport.

I've stomach problems after 2 hours of flight, Iris, the flight purser not only did her best to make me feel comfortable, she went above and beyond providing pain relievers medicines and ointment. She look and found a doctor passenger on the flight to provide advise. She even report on ground staffs about my condition and provide wheelchair upon arrival. Kudos to her and Cathay Pacific!

So so, crew was overly professional and lacks human touch. Equipment is very old, especially the HKG-PVG CX366 flight. That plane along with its decor must have twenty years of history, or at least I had that impression.

Everything was fine and I have no complaints or things to note.

Overall, it was ok. However, the food was very sub-par.

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

Information on your arrival and departure airports

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