Route guide

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

Royal Flying Doctor Service flies nonstop from Khlong Hoi Khong (HDY) to Chiang Mai (CNX) 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 22, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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3
Nonstop flights a week
823 mi
Nonstop distance
Free
To get started

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

Airlines flying Khlong Hoi Khong to Chiang Mai nonstop

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

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

Frequently asked questions about HDY to CNX

How far is Chiang Mai from Khlong Hoi Khong?
HDY to CNX 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 HDY to CNX?
Royal Flying Doctor Service is currently the only airline flying HDY to CNX nonstop. 2LNR tracks confirmed upgrade and award space on every Royal Flying Doctor Service departure.
How often does HDY to CNX operate?
The nonstop currently runs three times a week, on Royal Flying Doctor Service. Thin schedules like this change by season, and an alert will catch anything added.
How do I check upgrade or award availability on HDY to CNX?
Open the HDY to CNX calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Khlong Hoi Khong to Chiang Mai route, and 2LNR will notify you when space opens. It's free to start.

Never miss HDY to CNX upgrade or award space

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

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