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Cheap Flights from Ontario International Airport to Kathmandu

Search for flights from Ontario International Airport to Kathmandu and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort by: Lowest Price
  • Sort by: Lowest Price
  • Sort by: Earliest Flight
      • ONT07:36
        33h 49m
        2 stops
        KTM06:10
        Ontario - Kathmandu|Tue, Jul 9|Frontier Airlines
        $698$997
        30% OFF
        30% OFF
        $997$698
      • ONT00:10
        31h 40m
        2 stops
        KTM20:35
        Ontario - Kathmandu|Sat, May 11|China Airlines
        $808$997
        19% OFF
        19% OFF
        $997$808
      • ONT00:45
        28h
        2 stops
        KTM17:30
        Ontario - Kathmandu|Wed, Jul 10|China Airlines
        $852$997
        15% OFF
        15% OFF
        $997$852
      • ONT10:29
        25h 46m
        2 stops
        KTM01:00
        Ontario - Kathmandu|Mon, May 13|Qatar Airways
        $864
        $864
      • ONT10:15
        26h
        2 stops
        KTM01:00
        Ontario - Kathmandu|Wed, May 15|Qatar Airways
        $868
        $868
      • ONT10:00
        26h 15m
        2 stops
        KTM01:00
        Ontario - Kathmandu|Wed, May 22|Qatar Airways
        $868
        $868
      • ONT10:00
        26h 15m
        2 stops
        KTM01:00
        Ontario - Kathmandu|Fri, May 17|Qatar Airways
        $886
        $886
      • ONT10:29
        25h 46m
        2 stops
        KTM01:00
        Ontario - Kathmandu|Thu, May 9|Qatar Airways
        $894
        $894
      • ONT00:45
        31h 30m
        2 stops
        KTM21:00
        Ontario - Kathmandu|Thu, Jul 18|China Airlines
        $898
        $898
      • ONT00:45
        28h
        2 stops
        KTM17:30
        Ontario - Kathmandu|Fri, Jul 5|China Airlines
        $919
        $919
      • ONT13:00
        3h 5m
        Direct
        KTM14:00
        Los Angeles - Kathmandu|Wed, May 15|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Ontario International Airport to Kathmandu

See which airlines fly from Ontario International Airport to Kathmandu. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From $698
China Airlines
From $808
Qatar Airways
From $864
United Airlines
From $1,349
Jetblue Airways
From $1,362
Alaska Airlines
From $1,616
American Airlines
From $1,774
ANA airlines
Find more flights and airlines

Flight Info of Flights from Ontario International Airport to Kathmandu

Cheapest nonstop flight price

$590

Off-season for travel

April

Peak season for travel

August

FAQs for Ontario International Airport to Kathmandu Flights

  • What is the transportation method from the main airport to downtown in Kathmandu?

    • The distance from Tribhuvan International Airport to downtown is about 3km. It takes about 20 minutes by taxi.

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