BOS - CNX

$560 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 9/18. 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

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

 
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.

Recent round-trip flight deals from Boston to Chiang Mai

KAYAK's recommended round-trip deals from the most popular airlines that fly from Boston to Chiang Mai.
Discover the best prices for you by selecting your travel dates on KAYAK.
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
$1,064Korean 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 - 4:11 pmCNX-BOS
26h 56m2 stops
$1,093Korean Air
Find Deal
Sun, Oct 19 - Thu, Oct 30
 Logo
10:00 pm - 11:15 amBOS-CNX
26h 15m2 stops
 Logo
9:05 pm - 2:55 pmCNX-BOS
28h 50m2 stops
$1,098
Find Deal
Sun, Oct 19 - Fri, Oct 31
 Logo
9:35 pm - 11:15 amBOS-CNX
26h 40m2 stops
 Logo
11:55 am - 7:40 pmCNX-BOS
42h 45m2 stops
$1,104
Find Deal
Mon, Sep 1 - Sun, Sep 7
Delta Logo
6:05 pm - 9:55 pmBOS-CNX
40h 50m2 stops
Delta Logo
11:15 pm - 12:15 amCNX-BOS
36h 00m2 stops
$1,413Delta
Find Deal
Sun, Jun 15 - Sun, Jun 22
Cathay Pacific Logo
1:40 am - 9:45 amBOS-CNX
21h 05m1 stop
Cathay Pacific Logo
7:25 pm - 11:00 pmCNX-BOS
38h 35m1 stop
$1,530Cathay Pacific
Find Deal
Sun, Aug 31 - Sun, Sep 7
Delta Logo
6:40 pm - 9:55 pmBOS-CNX
40h 15m2 stops
Delta Logo
11:15 pm - 12:15 amCNX-BOS
36h 00m2 stops
$1,539Delta
Find Deal
Tue, Jun 10 - Tue, Jul 8
Cathay Pacific Logo
1:40 am - 9:45 amBOS-CNX
21h 05m1 stop
Cathay Pacific Logo
11:55 am - 11:00 pmCNX-BOS
46h 05m2 stops
$1,646Cathay Pacific
Find Deal
Sun, Aug 31 - Sun, Sep 7
China Airlines Logo
7:30 am - 10:20 amBOS-CNX
39h 50m2 stops
China Airlines Logo
11:20 am - 4:01 pmCNX-BOS
39h 41m2 stops
$1,726China Airlines
Find Deal
Mon, Jul 7 - Sun, Aug 10
China Airlines Logo
7:30 am - 10:20 amBOS-CNX
39h 50m2 stops
China Airlines Logo
11:20 am - 4:01 pmCNX-BOS
39h 41m2 stops
$1,771China Airlines
Find Deal
Mon, Jul 7 - Sat, Aug 9
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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 October, where tickets cost $1,121 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $2,086 and $1,792 respectively.

Good to know

Low seasonOctober
High seasonJune
Cheapest flight$560
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 47% increase in price.
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 $560 for a one-way ticket and $1,064 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, oneworld, and Star Alliance 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 $1,200 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 $1,628 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 1066 reviews
8.1Food
8.3Comfort
8.7Crew
8.2Entertainment
8.5Boarding
Airline reviews

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

10.0 ExcellentAnonymous, Apr 2025ATL - ICN
Read more Korean Air reviews

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...

Need to have space for Cary on when traveler boarding any zone

When I selected my seats, it showed row 29 as the front row, so I paid extra to sit in what I thought would be the front row, but when I boarded the plane, row 29 was the second economy row. I was disappointed that I'd spent almost $100 more for no actual benefit.

Our bag was lost so that made unnecessary chaos On our trip

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

It was an overnight flight and I desperately needed coffee before we landed, but Delta does only one beverage service, and that is shortly after takeoff, not before landing at 5 am.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

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.

I have a Peanut Allergy and the Steward staff were very accommodating in ensuring my safety as my allergy is life threatening. Very professional and so vested in their profession.

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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