Chiang Mai to Na Thon (Ko Samui Island) (CNX–USM) — Airlines, Schedules & Connections

CNX Airport Page →
641 mi airlines 14/wk
On-time Some delays Frequent delays
Flight Schedule 5 flights Verified 2h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
✓
→
CI9634
CI China
319
11:30 AM
+07
1:15 PM
+07
1h 45m
—
M T W T F S S
Prices
✓
→
BR3872
BR EVA
319
11:30 AM
+07
1:15 PM
+07
1h 45m
—
M T W T F S S
Prices
✓
←
BR3871
BR EVA
319
8:50 AM
+07
10:40 AM
+07
1h 50m
—
M T W T F S S
Prices
✓
←
EY7642
EY Etihad
319
8:50 AM
+07
10:40 AM
+07
1h 50m
—
M T W T F S S
Prices
✓
←
CI9632
CI China
319
8:50 AM
+07
10:40 AM
+07
1h 50m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Chiang Mai to Na Thon (Ko Samui Island)
2 carriers, 14 flights/week nonstop.
2 Airlines 14 Flights/wk 641 mi 1h 45m nonstop 4 1-stop hubs

CNX–USM is served by 2 airlines with nonstop service. EVA Air and China Airlines lead the route. The flight covers 641 miles in approximately 1h 45m. Beyond nonstop, 4 hubs offer 1-stop connections.

Also explore CNX Routes USM Routes CNX Live Flights USM Live Flights
Carriers on this route

Airline Landscape

All carriers operating nonstop CNX–USM service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
BR EVA Air 7 319 1h45 – Star Alliance –
CI China Airlines 7 319 1h45 – SkyTeam –
Aircraft on this route
319 Airbus A319 – BR, CI
Alliance coverage
Star Alliance: BR (7 flights/wk, 50%)
SkyTeam: CI (7 flights/wk, 50%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, CNX to USM direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
14
Outbound / wk
21
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for CNX to USM.
1-STOP
One-Stop Connections
4
Hubs
~16h
Fastest
~20h
Longest
HKG ~16h 27m SIN ~17h 17m BKK ~18h 25m HKT ~20h 5m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
69
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Na Thon (Ko Samui Island) is 0 hours the same as Chiang Mai.
CNX: +07 · USM: +07

When it's 6:00 PM in Chiang Mai, it's 6:00 PM in Na Thon (Ko Samui Island).
Distance & Flight Time
641 mi / 1,032 km
Nonstop flight time is approximately 1h 45m.
Facts

CNX–USM Quick Facts

Key statistics for the Chiang Mai to Na Thon (Ko Samui Island) route.
Route details
Distance641 mi / 1,032 km
Flight time1h 45m
Time difference0 hours
Airlines (nonstop)2
Weekly flights14 out / 21 return
1-stop connections4 hubs
Origin: CNX
Full nameChiang Mai International Airport
IATA / ICAOCNX / VTCC
TimezoneAsia/Bangkok
Passengers/yr9.0M
Elevation1,036 ft / 316 m
Destination: USM
Full nameSamui International Airport
IATA / ICAOUSM / VTSM
TimezoneAsia/Bangkok
Passengers/yr2.8M
Elevation64 ft / 20 m
FAQ

Frequently Asked Questions

Common questions about CNX to USM flights.
Nonstop flights from Chiang Mai International Airport to Samui International Airport take approximately 1h 45m. The route covers 641 miles.
2 airlines operate nonstop service: EVA Air and China Airlines.
There are approximately 14 nonstop flights per week from CNX to USM. The return direction has about 21 weekly flights.
Yes, 1-stop connections are available through HKG, SIN, BKK and HKT. These options provide additional schedule flexibility.
Yes, return flights from USM to CNX are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from CNX to USM

Chiang Mai International Airport (CNX) and Samui International Airport (USM) are connected by nonstop service from EVA Air and China Airlines. With 14 weekly departures, this is a well served route.

CNX to USM Flight Duration and Schedule

Nonstop flight time from CNX to USM ranges from 1 hours 45 minutes. The route covers a distance of 641 miles (1,032 km). There are approximately 14 weekly flights outbound and 21 return, totaling 35 flights per week in both directions.

Connecting Options and Alternatives

4 one-stop connections are available, with the fastest taking approximately 16 hours via HKG. Two-stop connections are also available via intermediate hubs.