What is the cheapest airline to fly from Kathmandu to Chiang Mai round-trip?

According to our current data, Thai Airways ($626), offers the cheapest pricing from Kathmandu to Chiang Mai.

In terms of precipitation, rainfall in Chiang Mai ranges from 0.0 - 9.8 inches per month. September is typically the wettest month, when rainfall can reach 9.8 in. January is typically the driest time to visit Chiang Mai when rainfall is around 0.0 in.

If weather is an important factor for your trip to Chiang Mai, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 69.8 F).

What is the cheapest time of day to fly from KTM to CNX?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Kathmandu to Chiang Mai as you normally would.

Most accurate provider : When it comes to deals on Kathmandu-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kathmandu-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kathmandu-Chiang Mai flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Kathmandu-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kathmandu-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from Kathmandu to Chiang Mai that include hotel bookings?

Yes. In addition to deals on Kathmandu to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Kathmandu to Chiang Mai?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Chiang Mai.

Can I find deals for business class flights from Kathmandu to Chiang Mai?

Yes. Cheapflights offers flight deals from Kathmandu to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$280+ Cheap Flights from Kathmandu to Chiang Mai

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

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Cheap flight deals from Kathmandu to Chiang Mai

One-way

One-way flights from Kathmandu to Chiang Mai
Search for one-way flight options from Kathmandu to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Wed 9/3012:25 am -

1 stop7h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/15

$280

Fri 11/612:30 pm -

1 stop18h 45m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/14

$320

Mon 11/2311:45 am -

2 stops19h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 9/17

$706

Find flight deals from Kathmandu to Chiang Mai

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars

Provider with most accurate pricing for Kathmandu Tribhuvan-Chiang Mai flight deals.

Search Deals

Provider most trusted by Cheapflights users for Kathmandu Tribhuvan-Chiang Mai flights.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kathmandu to Chiang Mai that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

KathmanduChiang Mai

KTM Kathmandu Tribhuvan - CNX Chiang Mai

KTMCNX

Kathmandu Tribhuvan

Wed 9/30

12:25 am-9:00 am

1 stop7h 20m

Chiang Mai

Wed 12/31

12:00 am-10:30 pm

Nonstop0h 00m

$280

KathmanduChiang Mai

KTM Kathmandu Tribhuvan - CNX Chiang Mai

KTMCNX

Kathmandu Tribhuvan

Fri 11/6

12:30 pm-8:30 am

1 stop18h 45m

Chiang Mai

Wed 12/31

12:00 am-10:30 pm

Nonstop0h 00m

$320

KathmanduChiang Mai

KTM Kathmandu Tribhuvan - CNX Chiang Mai

KTMCNX

Kathmandu Tribhuvan

Mon 11/23

11:45 am-8:10 am

2 stops19h 10m

Chiang Mai

Wed 12/31

12:00 am-10:30 pm

Nonstop0h 00m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Sorted by cheapest first

Compare providers for flights from Kathmandu to Chiang Mai

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kathmandu to Chiang Mai in September.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Kathmandu-Chiang Mai flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kathmandu-Chiang Mai flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kathmandu-Chiang Mai flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Kathmandu-Chiang Mai flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kathmandu-Chiang Mai flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Kathmandu to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Kathmandu with our price prediction graph.

KTM-CNX

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Reviews of airlines servicing Chiang Mai

Read through reviews of airlines operating flights from Kathmandu to Chiang Mai, such as Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Thai Airways

7.9

Good

419 reviews

Reviews

1 / 20

10.0

Excellent

Virendra,Jan 2026

DEL - BKK

Having required wheel chair assistance, I received amazing service from the ground and cabin staff. Everything was a breeze. Flight was comfortable but the entertainment system was quite dated. The chicken noodles served was amazing

Thai Airways

7.9

Good

419 reviews

Thai Airways

7.9

Good

419 reviews

Reviews

1 / 20

10.0

Excellent

Virendra,Jan 2026

DEL - BKK

Related info for your journey

What is the cheapest airline to fly from Kathmandu to Chiang Mai round-trip?
According to our current data, Thai Airways ($626), offers the cheapest pricing from Kathmandu to Chiang Mai.
Can I find deals for flights from Kathmandu to Chiang Mai that include hotel bookings?
Yes. In addition to deals on Kathmandu to Chiang Mai flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Kathmandu to Chiang Mai?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kathmandu to Chiang Mai.
Can I find deals for business class flights from Kathmandu to Chiang Mai?
Yes. Cheapflights offers flight deals from Kathmandu to Chiang Mai by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Kathmandu to Suvarnabhumi flights

Top airline flying from Kathmandu to Chiang Mai

Airline	Cheapest	Average	Flexibility	On-time
Thai Airways	Cheapest$626	Average$653	FlexibilityNo cancel fee	On-time77%

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$280+ Cheap flights from Kathmandu (KTM) to Chiang Mai (CNX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Kathmandu to Chiang Mai with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Kathmandu to Chiang Mai

One-way flights from Kathmandu to Chiang MaiSearch for one-way flight options from Kathmandu to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Search for one-way flight options from Kathmandu to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.

Find flight deals from Kathmandu to Chiang Mai

Most accurate provider

Most trusted provider

Cheapflights Fare Finder

Use the filters below to find and compare flights from Kathmandu to Chiang Mai that are best for you.

Compare providers for flights from Kathmandu to Chiang Mai

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kathmandu to Chiang Mai in September.

Best time to book a flight from Kathmandu to Chiang Mai

Have a flexible travel schedule? Discover the best time to fly to Chiang Mai from Kathmandu with our price prediction graph.

Reviews of airlines servicing Chiang Mai

Read through reviews of airlines operating flights from Kathmandu to Chiang Mai, such as Thai Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What is the cheapest airline to fly from Kathmandu to Chiang Mai round-trip?

Can I find deals for flights from Kathmandu to Chiang Mai that include hotel bookings?

How can I find direct flights from Kathmandu to Chiang Mai?

Can I find deals for business class flights from Kathmandu to Chiang Mai?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Kathmandu to Chiang Mai

See prices for flight routes from nearby airports that may be better suited for you.

Other flights to Chiang Mai

Explore flights to Chiang Mai departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 17, 2026.

Complete your trip

Complete your trip to Chiang Mai by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Kathmandu to Chiang Mai by cabin class

Find flights from Kathmandu to Chiang Mai, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Kathmandu and Chiang Mai flights

Browse other Kathmandu and Chiang Mai flight options. Last updated on September 17, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Kathmandu to Chiang Mai

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One-way flights from Kathmandu to Chiang Mai
Search for one-way flight options from Kathmandu to Chiang Mai. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.