Route guide

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

Hahn Air Systems, Thai Airways International, Thai Vietjet Air, and Royal Flying Doctor Service fly nonstop between Chiang Rai (CEI) and Bangkok (BKK), roughly 61 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 CEI to BKK 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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61
Nonstop flights a week
437 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every CEI to BKK 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 Chiang Rai to Bangkok 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 CEI to BKK 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 CEI to BKK on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chiang Rai to Bangkok nonstop

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

  • Hahn Air Systems
  • Thai Airways International
  • Thai Vietjet Air
  • Royal Flying Doctor Service
See CEI to BKK on the interactive map →

Frequently asked questions about CEI to BKK

How far is Bangkok from Chiang Rai?
CEI to BKK covers about 437 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CEI to BKK?
Hahn Air Systems, Thai Airways International, Thai Vietjet Air, and Royal Flying Doctor Service fly the route nonstop. 2LNR tracks confirmed upgrade and award space on all four of them.
How many flights a week are there from CEI to BKK?
About 61 nonstop flights a week run between Chiang Rai and Bangkok in the current schedule, operated by Hahn Air Systems, Thai Airways International, Thai Vietjet Air, and Royal Flying Doctor Service. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on CEI to BKK?
Open the CEI to BKK calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Chiang Rai to Bangkok route, and 2LNR will notify you when space opens. It's free to start.

Never miss CEI to BKK upgrade or award space

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

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