Cheapest return flights from Islip to Chiang Mai in December from 1466€

AirHint found the following cheapest return flights from Islip (ISP) to Chiang Mai (CNX) in December 2025 (see full year).

Return flights

06 Dec - 13 Dec Frontier Airlines

Also check the deals for one-way flights from Islip to Chiang Mai in December.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Chiang Mai

Cheap car rent in Chiang Mai

Feel free to contact us with any feedback or request another flight research.