Boston to Chiang Mai flights (BOS → CNX)
Looking for Boston to Chiang Mai flights? Cheapest round-trip I’ve found: US$1,000 on Korean Air, 1 stop(s), departing 2027-02-28. That’s US$356 below the typical price for this route. Cheap flights from Boston to Chiang Mai change daily — I re-check this route three times a day.
Deal score: Average price — cheaper than 31% of prices I’ve seen on this route.
Best months to fly Boston to Chiang Mai
| Month | Cheapest seen |
|---|---|
| February | US$996 |
How to book this fare
I don’t sell tickets — I track prices and point you to where to look. To book Boston to Chiang Mai flights:
- Search Boston to Chiang Mai on Google Flights for the dates shown above (Feb 2027) — the fare I found is usually still available there.
- Compare the same dates on metasearch sites like Skyscanner or KAYAK to confirm you’re seeing the lowest price.
- Book directly with the airline when you can — it’s often the same price and makes changes or cancellations much easier.
Fares change constantly. If the price has moved, check back — I re-check this route daily.
Other Boston to … flights
- Boston to Tokyo Narita flights — US$1,059
- Boston to Bali flights — US$1,020
- Boston to Santiago flights — US$545
- Boston to Auckland flights — US$1,236
- Boston to Belo Horizonte flights — US$845
- Boston to Buenos Aires flights — US$1,026
- Boston to Budapest flights — US$683
- Boston to Edmonton flights — US$286
All flights to Chiang Mai · All flights from Boston
Prices last checked: 2026-09-24, 10:14:54 p.m.. Prices are indicative and change quickly — confirm on the airline site before booking. See how I find these deals.