What is the cheapest airline to fly from Phnom Penh to Kathmandu round-trip?

Our cheapest airline available from Phnom Penh to Kathmandu is Singapore Airlines. Our recent data shows that you can find tickets from as low as $645 on this airline.

What are the cheapest airlines to fly from Phnom Penh to Kathmandu one-way?

One-way options have recently been found by users for as low as $177 on Thai AirAsia. Other airlines that offer cheap prices include Cathay Pacific from $213 and Thai Airways from $337 one-way.

In terms of precipitation, rainfall in Kathmandu ranges from 0.0 - 14.6 inches per month. July is typically the wettest month, when rainfall can reach 14.6 in. November is typically the driest time to visit Kathmandu when rainfall is around 0.0 in.

If weather is an important factor for your trip to Kathmandu, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

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

When flying from Phnom Penh to Kathmandu, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Most trusted provider : When it comes to deals on Phnom Penh-Kathmandu 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 Phnom Penh-Kathmandu 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 Phnom Penh to Kathmandu that include hotel bookings?

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

How can I find direct flights from Phnom Penh to Kathmandu?

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

Can I find deals for business class flights from Phnom Penh to Kathmandu?

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

Find Cheap Flights from Phnom Penh to Kathmandu

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1. Tell us where you want to go

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Find flight deals from Phnom Penh to Kathmandu

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Popular in	November
Cheapest in	August
Average price	$643

Provider with most accurate pricing for Phnom Penh Pochentong-Kathmandu Tribhuvan flight deals.

Search Deals

Provider most trusted by Cheapflights users for Phnom Penh Pochentong-Kathmandu Tribhuvan flights.

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($45 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in March 2026

Search Deals

Compare providers for flights from Phnom Penh to Kathmandu

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

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	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 Phnom Penh-Kathmandu flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Phnom Penh-Kathmandu flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Phnom Penh-Kathmandu flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Phnom Penh-Kathmandu 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 Phnom Penh-Kathmandu 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 Phnom Penh to Kathmandu

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

PNH-KTM

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 Kathmandu

Read reviews from past customers who have flown Singapore Airlines from Phnom Penh to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Singapore Airlines

8.2

Very good

1,475 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Singapore Airlines

8.2

Very good

1,475 reviews

Singapore Airlines

8.2

Very good

1,475 reviews

Reviews

1 / 20

6.0

Good

Anonymous,Feb 2026

SAI - SIN

The only issue we had was seat selection. Was not easy to change, after they assigned seats. Also, the premium economy seats, are nothing special.. All and all safe flight with minor back issues.

Related info for your journey

What is the cheapest airline to fly from Phnom Penh to Kathmandu round-trip?
Our cheapest airline available from Phnom Penh to Kathmandu is Singapore Airlines. Our recent data shows that you can find tickets from as low as $645 on this airline.
What are the cheapest airlines to fly from Phnom Penh to Kathmandu one-way?
One-way options have recently been found by users for as low as $177 on Thai AirAsia. Other airlines that offer cheap prices include Cathay Pacific from $213 and Thai Airways from $337 one-way.
Can I find deals for flights from Phnom Penh to Kathmandu that include hotel bookings?
Yes. In addition to deals on Phnom Penh to Kathmandu flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Phnom Penh to Kathmandu?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Phnom Penh to Kathmandu.
Can I find deals for business class flights from Phnom Penh to Kathmandu?
Yes. Cheapflights offers flight deals from Phnom Penh to Kathmandu by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top airline flying from Phnom Penh to Kathmandu

Airline	Cheapest	Average	Flexibility	On-time
Singapore Airlines	Cheapest$645	Average$1,085	FlexibilityNo cancel fee	On-time81%

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Cheap flights from Phnom Penh (PNH) to Kathmandu (KTM)

Find cheap flights from Phnom Penh to Kathmandu with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Phnom Penh to Kathmandu

Most accurate provider

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Popular in

Cheapest in

Average price

Compare providers for flights from Phnom Penh to Kathmandu

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 Phnom Penh to Kathmandu in March.

Best time to book a flight from Phnom Penh to Kathmandu

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

Reviews of airlines servicing Kathmandu

Read reviews from past customers who have flown Singapore Airlines from Phnom Penh to Kathmandu. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Phnom Penh to Kathmandu. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What is the cheapest airline to fly from Phnom Penh to Kathmandu round-trip?

What are the cheapest airlines to fly from Phnom Penh to Kathmandu one-way?

Can I find deals for flights from Phnom Penh to Kathmandu that include hotel bookings?

How can I find direct flights from Phnom Penh to Kathmandu?

Can I find deals for business class flights from Phnom Penh to Kathmandu?

Traveling to a place near Kathmandu?

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Search flights from Phnom Penh to Kathmandu by cabin class

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Other flights to Kathmandu

Explore flights to Kathmandu departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 16, 2026.

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