Flights Bangkok to Chiang Mai (BKK-CNX): Airlines, THB Fares

Flights Bangkok → Chiang Mai (BKK-CNX) — THB Fares, Airlines, Frequency

Bangkok to Chiang Mai is one of Thailand’s busiest domestic routes — around 196 flights a week linking the capital with the principal city of the north. It carries holidaymakers, business travellers, students, residents moving between the two cities, and international visitors connecting onward from Bangkok.

Block time is about 1.2 hours. With five carriers and this much frequency, the route operates as a near-constant shuttle: seats are easy to find from early morning to late evening, and the practical decision is price and timing.

Airlines on this route

Five carriers fly BKK-CNX: Thai Airways on the full-service side, with Thai AirAsia, Thai Vietjet, Nok Air and Thai Lion Air covering the low-cost end. Thai Airways fares include baggage; the low-cost carriers price the base seat low and sell baggage and extras separately. On a short domestic flight, comparing the all-in THB cost once add-ons are counted is the fair way to judge value.

THB fares

BKK-CNX fares stay competitive thanks to the frequency, lifting around the cool-season high season in the north, the year-end holidays and festival periods. The cheapest seats are the low-cost carriers’ early-released fares — booking two to five weeks ahead usually lands a good price, and mid-week departures undercut weekends. The hot-season and rainy months are the quietest and cheapest.

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About Chiang Mai

Chiang Mai is the principal city of northern Thailand, set in a valley among forested hills — an old walled centre dense with temples, surrounded by a modern city and, beyond it, the mountains and hill country of the north. It has a distinct northern Thai character, a strong food and craft culture, and a cooler climate than the central plains. For travellers from Bangkok it is the standard northern destination and the gateway to the wider region, from Chiang Rai to the national parks.

FAQ

Which airlines fly Bangkok to Chiang Mai? Direct BKK-CNX flights are operated by Thai Airways, Thai AirAsia, Thai Vietjet, Nok Air, Thai Lion Air. Compare baggage allowance, fares and schedules in the carrier table above.

How long is the BKK-CNX flight and how often does it run? Block time is about 1.2 hours. The BKK-CNX route runs roughly 196 flights per week across all carriers.

How far ahead should I book BKK-CNX for the best fare? Booking 4-8 weeks ahead for regular dates, and 10-14 weeks for peak periods (Songkran, New Year, Hajj/Umrah season), typically saves 15-30%. See the month-by-month fare heatmap above.

What is the checked baggage allowance on BKK-CNX? It varies by carrier and fare class — full-service carriers on this route usually include 20-30 kg, while low-cost carriers sell it as an add-on. Confirm the current policy on the airline’s site before booking.

What currency is used in Chiang Mai? Chiang Mai uses USD. Compare airfares in THB and budget on-the-ground spending in USD.

Related routes

• BKK airport
• CNX airport