Cheap flights from Hong Kong to Chiang Mai from $250 HKG → CNX
Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX)
The cheapest return found recently is $250 with HK Express, 19 Sept 2027 – 22 Sept 2027, found 2 days ago.
- Cheapest return found recently
- $250, 19 Sept 2027 to 22 Sept 2027
- Usual return price
- $315 to $455
- Cheapest month to fly
- September 2027, return fares from $250 found in the last 7 days
Return
The cheapest return fare on each of 5 departure dates is usually $315 to $455.
Cheapest return found recently
$250
19 Sept 2027 – 22 Sept 2027 · HK Express
Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX)
Leaves 4:50 p.m. · Return leaves 7:25 p.m. · 5 h 40 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Cheapest nonstop return
$250
19 Sept 2027 – 22 Sept 2027 · HK Express
Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX)
Leaves 4:50 p.m. · Return leaves 7:25 p.m. · 5 h 40 min of travel, both ways together
out nonstop, back nonstop
found 2 days ago
Found recently, and the cheapest we hold
$250 19 Sept 2027 – 22 Sept 2027found 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 46 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $217 to $377.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 5 departure dates from 21 Dec to 14 Oct 2027, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
We hold no other 3-night return fares leaving within 3 days of 19 Sept 2027 to compare.
Every date we hold
5 fares on 5 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 21 Dec – 3 Jan 2027 | $455 | HK Express | Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 27 Dec – 3 Jan 2027 | $498 | HK Express | Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 1 Jan 2027 – 3 Jan 2027 | $428 | HK Express | Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX) | out nonstop, back 1 stop | found 3 days ago | See prices for these dates |
| 19 Sept 2027 – 22 Sept 2027 | $250 | HK Express | Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX) | out nonstop, back nonstop | found 2 days ago | See prices for these dates |
| 14 Oct 2027 – 22 Oct 2027 | $315 | HK Express | Hong Kong International Airport (HKG) → Chiang Mai International Airport (CNX) | out nonstop, back nonstop | found 7 days ago | See prices for these dates |
Which month looks cheapest?
September 2027 is the cheapest month — from $250.
Airlines on the cheapest dates: HK Express.
Premium cabin fares from Hong Kong to Chiang Mai
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 19 Sept 2027 – 22 Sept 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Hong Kong to Chiang Mai?
Return
The cheapest fares were 0 to 6 days before departure.
From the cheapest return each day between 24 Sept and 11 Nov (46 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $221 | $217 | Cheapest seen | 10 |
| 7–13 days | $273 | $221 | +24% | 14 |
| 14–29 days | $295 | $233 | +34% | 11 |
| 30–59 days | $279 | $255 | +26% | 27 |
| 60–89 days | $262 | $233 | +18% | 16 |
| 90–179 days | $280 | $242 | +27% | 20 |
| 180+ days | $267 | $250 | +21% | 14 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Guangzhou → Chiang Mai
129 km from Hong Kong
$189
$61 less than flying from Hong Kong
13 Jan 2027 – 21 Jan 2027 · CAN → CNX · out nonstop, back nonstop
found 2 days ago
Shenzhen → Chiang Mai
27 km from Hong Kong
$372
$122 more than flying from Hong Kong
26 Dec – 2 Jan 2027 · SZX → CNX · out 1 stop, back 1 stop
found 4 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Guangzhou → Chiang Mai
129 km from Hong Kong
$89
6 Jan 2027 · CAN → CNX · nonstop
found 7 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest return found recently is for 19 Sept 2027 – 22 Sept 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Hong Kong to Chiang Mai?
The cheapest return found recently is $250 with HK Express, 19 Sept 2027 to 22 Sept 2027, found 2 days ago. The cheapest return fare on each of 5 departure dates is usually $315 to $455.
What is the cheapest month to fly from Hong Kong to Chiang Mai?
September 2027 is the cheapest month for a return, from $250, 19 Sept 2027 to 22 Sept 2027, found 2 days ago.
How far ahead should I book a flight from Hong Kong to Chiang Mai?
In 46 days of prices between 24 Sept and 11 Nov, return fares were cheapest 0 to 6 days before departure.
Is there a direct flight from Hong Kong to Chiang Mai?
Yes, the cheapest nonstop return found recently is $250 with HK Express, 19 Sept 2027 to 22 Sept 2027, found 2 days ago.
Which airlines have the cheapest flights from Hong Kong to Chiang Mai?
Between 21 Dec and 14 Oct 2027, HK Express has the cheapest return on all 5 departure dates we hold.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work