BOS - CNX

$584 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 7/16. 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

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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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

Tue, Sep 2 - Tue, Sep 23
 Logo
10:00 pm - 9:20 amBOS-CNX
24h 20m2 stops
 Logo
8:00 pm - 3:05 pmCNX-BOS
30h 05m2 stops
$1,045
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Sun, Oct 19 - Fri, Oct 31
 Logo
10:00 pm - 11:15 amBOS-CNX
26h 15m2 stops
 Logo
7:45 pm - 2:55 pmCNX-BOS
30h 10m2 stops
$1,056
Find Deal
Mon, Sep 1 - Sun, Sep 7
China Airlines Logo
7:20 am - 10:20 amBOS-CNX
40h 00m2 stops
China Airlines Logo
11:20 am - 8:00 amCNX-BOS
31h 40m2 stops
$1,078China Airlines
Find Deal
Mon, Sep 1 - Tue, Sep 23
Cathay Pacific Logo
1:40 am - 6:40 pmBOS-CNX
30h 00m1 stop
Cathay Pacific Logo
10:30 am - 11:00 pmCNX-BOS
23h 30m1 stop
$1,079Cathay Pacific
Find Deal
Mon, Sep 1 - Tue, Sep 23
Cathay Pacific Logo
1:40 am - 9:45 amBOS-CNX
21h 05m1 stop
Cathay Pacific Logo
10:30 am - 11:00 pmCNX-BOS
23h 30m1 stop
$1,087Cathay Pacific
Find Deal
Tue, Sep 2 - Tue, Sep 23
Delta Logo
12:55 pm - 9:55 pmBOS-CNX
22h 00m1 stop
Delta Logo
11:15 pm - 11:44 pmCNX-BOS
35h 29m2 stops
$1,101Delta
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Mon, Oct 13 - Sun, Nov 16
Delta Logo
6:35 pm - 9:55 pmBOS-CNX
40h 20m2 stops
Delta Logo
12:15 am - 12:01 amCNX-BOS
35h 46m2 stops
$1,111Delta
Find Deal
Tue, Sep 2 - Tue, Sep 23
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
$1,161Korean Air
Find Deal
Sun, Oct 19 - Thu, Oct 30
Korean Air Logo
12:55 pm - 9:55 pmBOS-CNX
22h 00m1 stop
Korean Air Logo
12:15 am - 9:40 amCNX-BOS
20h 25m1 stop
$1,199Korean Air
Find Deal
Mon, Jul 7 - Sat, Aug 9
China Airlines Logo
6:32 pm - 10:20 amBOS-CNX
28h 48m2 stops
China Airlines Logo
11:20 am - 8:00 amCNX-BOS
31h 40m2 stops
$1,776China Airlines
Find Deal
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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 September, where tickets cost $1,068 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $2,098 and $1,702 respectively.

Good to know

Low seasonAugust
High seasonNovember
Cheapest flight$584
Best time to beat the crowds but there is an average 1% increase 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 $584 for a one-way ticket and $1,045 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?

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

  • What is the most popular layover when flying to Chiang Mai from Boston?

    Incheon is the most popular layover city among KAYAK users traveling from Boston to Chiang Mai.

  • 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 $1,185 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 $1,660 and an overall rating of 8.0.

  • 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.

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 1090 reviews
8.5Boarding
8.1Food
8.3Comfort
8.2Entertainment
8.7Crew
Airline reviews

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!

10.0 ExcellentAnonymous, May 2025LAS - ICN
Read more Korean Air reviews

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.

The delay in Korea was a pain and set us back a day. I have to give big props to Korean Air for setting up a hotel with dinner and transportation to and from the hotel. I also needed assistance with a wheelchair and they did an outstanding job.

Great except for the delay in Korea. Korean Air did a great job setting up a hotel for the night. I also needed assistance with a wheelchair and they were outstanding.

The flight was on time and very quick, as expected, but the leg room isn't great in coach seats.

Just a typical domestic poor flight nothing more. There is no food choices in such a flight. Crew doesn't really care if you are on-board or not

long flights are difficult but the crew and amenities made it a very good experience

Our seat row plus one ahead and behind we're completely overlooked during beverage service...

The flight was scheduled for 2:30 PM. Early in the morning we got a text message saying the flight was delayed and rescheduled for 3:00 PM. We got to the airport with that in mind. Then we got a message during check-in at the flight was rescheduled again for 2:30 PM. We almost missed our flight. In fact, our bags Were told that they would not make it. At the end, everything worked out. But it is very stressful.

Overall, aside from the baggage issue, it was as good as one expects.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

I want to single out flight attendant Mitch who was in the Premium Economy section. When my wife’s hearing aide dropped through the cushion under the seat he was able to locate it and return it to her. Food was a different matter. Dinner was fine. Breakfast was another matter. They had a yogurt dish that the ran out of and the alternative was not very good according to those we talked to.

Excellent check-in. Crew was good. Excellent communication from flight deck.

Great overall. There was a bit of turbulence so they could only serve water because too much turbulence for the carts. Was glad they prioritized safety though

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

Flight was delayed long enough that I was misding my connecting flight. The agents could not get me on a comparable flight, nor could they get me s Main Cabin seat I had paid for, nor could they get me on a comparable connecting flight. The gate agent would not issue meal vouchers, even though I was delayed over six hours! I had to spend over an hour and 15 minutes with customer service on the phone to See if they could get me on a better flight and get a meal voucher. Customer service was not helpful enough in trying to find alternate flights and it Ended up taking me 24 hours for a 12 hour trip!! Delta does not provide upgrades NOR will they even give you a pass for a few hours to their lounge. They claim that they do not issue daily passes to their lounge anymore. I call BS since this would be no extra cost to them to provide excellent customer service and give you a few hours to relax in comfort when you’re sitting in a crowded airport and your flight has been screwed up for that many hours.

Great service. Flight was delayed while we sat on the runway for a couple of hours. Weather related. Staff made is very bearable. The steward servicing the first class cabin was exceptional. Thank you! 💗

5 hours of delay that could've been much shorter if Delta had taken the 1 hour delay they imposed on the flight before boarding to run any of the plane checks required for flight to find the hydraulic issue that required nearly 3 hours to fix. $24 of meal credit buys a sandwich and a soft drink. Poor communication within the terminal about what gate we'd be re-boarding from and when we'd be re-boarding.

The food and service was great. You have to pay a lot for in flight Internet though which is lame.

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.

The economy seats are much indeed roomier. Meals needs improvement.

flight delayed 45 mins - missed connection - 1 hr layover became 8 hr layover waiting for next flight -

Fast boarding flight on time boarded plane back to front instead of stupid zone groups like US airlines do...

Baggage delayed for 2 days and still chasing for reimbursement of basis items. Very horrible customer care service.

Horrible airline. Missed my baggage and don’t want to reimburse for the basis items. Pathetic customer service

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

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