Route guide

Bangkok to Chiang Rai (DMK-CEI): Nonstop Upgrade & Award Space

Thai Lion Mentari, Nok Air, Royal Flying Doctor Service, and W1 fly nonstop between Bangkok (DMK) and Chiang Rai (CEI), roughly 91 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every DMK to CEI departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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91
Nonstop flights a week
420 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every DMK to CEI departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Bangkok to Chiang Rai to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each DMK to CEI departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See DMK to CEI on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Bangkok to Chiang Rai nonstop

Carriers operating DMK to CEI nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Thai Lion Mentari
  • Nok Air
  • Royal Flying Doctor Service
  • W1
See DMK to CEI on the interactive map →

Frequently asked questions about DMK to CEI

How far is Chiang Rai from Bangkok?
DMK to CEI covers about 420 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from DMK to CEI?
Thai Lion Mentari, Nok Air, Royal Flying Doctor Service, and W1 fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all four of them.
How many flights a week are there from DMK to CEI?
About 91 nonstop flights a week run between Bangkok and Chiang Rai in the current schedule, operated by Thai Lion Mentari, Nok Air, Royal Flying Doctor Service, and W1. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on DMK to CEI?
Open the DMK to CEI calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Bangkok to Chiang Rai route, and 2LNR will notify you when space opens. It's free to start.

Never miss DMK to CEI upgrade or award space

Track confirmed availability, set alerts, and book with confidence. Free to start, no credit card required.

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