Route guide

Chiang Mai to Udon Thani (CNX-UTH): Nonstop Upgrade & Award Space

Nok Air and Royal Flying Doctor Service fly nonstop from Chiang Mai (CNX) to Udon Thani (UTH) just three times a week. With so few departures, each one carries the only premium seats on the route that day. 2LNR tracks confirmed upgrade and award space on all of them, so a rare opening doesn't slip past you.

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

See CNX to UTH on the interactive map Get started free
3
Nonstop flights a week
268 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every CNX to UTH 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 Mai to Udon Thani 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 CNX to UTH 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 CNX to UTH on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chiang Mai to Udon Thani nonstop

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

  • Nok Air
  • Royal Flying Doctor Service
See CNX to UTH on the interactive map →

Frequently asked questions about CNX to UTH

How far is Udon Thani from Chiang Mai?
CNX to UTH covers about 268 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from CNX to UTH?
Nok Air and Royal Flying Doctor Service fly the route nonstop. 2LNR tracks confirmed upgrade and award space on both of them.
How often does CNX to UTH operate?
The nonstop currently runs three times a week. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on CNX to UTH?
Open the CNX to UTH calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Chiang Mai to Udon Thani route, and 2LNR will notify you when space opens. It's free to start.

Never miss CNX to UTH upgrade or award space

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

Get started free