Route guide

Chiang Mai to Khlong Hoi Khong (CNX-HDY): Nonstop Upgrade & Award Space

Royal Flying Doctor Service flies the CNX to HDY nonstop about 4 times a week. That's enough service to give you a real choice of departures, though premium seats don't sit unclaimed for long. 2LNR watches every CNX to HDY departure for confirmed upgrade and award space and can alert you when a date you're tracking opens up.

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

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4
Nonstop flights a week
823 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every CNX to HDY 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 Khlong Hoi Khong 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 HDY 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 HDY on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Chiang Mai to Khlong Hoi Khong nonstop

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

  • Royal Flying Doctor Service
See CNX to HDY on the interactive map →

Frequently asked questions about CNX to HDY

How far is Khlong Hoi Khong from Chiang Mai?
CNX to HDY covers about 823 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 HDY?
Royal Flying Doctor Service is currently the only airline flying CNX to HDY nonstop. 2LNR tracks confirmed upgrade and award space on every Royal Flying Doctor Service departure.
How many flights a week are there from CNX to HDY?
About 4 nonstop flights a week run between Chiang Mai and Khlong Hoi Khong in the current schedule, operated by 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 CNX to HDY?
Open the CNX to HDY calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Chiang Mai to Khlong Hoi Khong route, and 2LNR will notify you when space opens. It's free to start.

Never miss CNX to HDY upgrade or award space

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

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