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$810+ Cheap flights from Kathmandu (KTM) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
KTM — ONT
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheap flight deals from Kathmandu to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Kathmandu (KTM) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 1, 2025.

Round-trip from

$1,297
(Trip.com)

One-way from

$810
(Trip.com)

Popular in

November

Cheapest in

February

Average price

$1,401
From Kathmandu Tribhuvan to Ontario
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One-way flight from Kathmandu Tribhuvan to Ontario
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Highest demand for flights based on searches. 8% potential increase in price ($135 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Kathmandu to Ontario

Cheapest flights from Kathmandu to Ontario
Explore the most affordable flight options available from Kathmandu to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 1, 2025.

This Trip.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1011:10 amKTM - ONT
2 stops44h 15mMultiple Airlines
Wed 3/1111:45 pmONT - KTM
2 stops30h 30mMultiple Airlines
Deal found 6/30$1,297
This Korean Air deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/127:20 pmKTM - ONT
2 stops40h 05mKorean Air
Thu 3/126:45 amONT - KTM
2 stops46h 00mKorean Air
Deal found 6/30$1,453
This Priceline deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/216:00 pmKTM - ONT
2 stops32h 35mQatar Airways
Fri 10/243:00 pmONT - KTM
2 stops37h 45mQatar Airways
Deal found 6/30$2,065

Cheapflights Fare Finder

Customize your flight search to find flights from Kathmandu to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 1, 2025.
Use the filters below to find and compare flights from Kathmandu to Ontario that are best for you.

Fly from

Kathmandu

Fly to

Ontario

Route

Depart

Return

Price

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Wed 9/10

11:10 am-6:40 pm

2 stops44h 15m

Ontario

Wed 3/11

11:45 pm-7:00 pm

2 stops30h 30m

$1,297

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Fri 9/12

7:20 pm-10:40 pm

2 stops40h 05m

Ontario

Thu 3/12

6:45 am-5:30 pm

2 stops46h 00m

$1,453

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Sun 9/21

6:00 pm-1:50 pm

2 stops32h 35m

Ontario

Fri 10/24

3:00 pm-5:30 pm

2 stops37h 45m

$2,065

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Mon 11/24

12:25 am-4:50 pm

2 stops30h 10m

$810

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Tue 11/25

5:40 pm-1:42 pm

2 stops33h 47m

$1,065

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Mon 7/21

7:20 pm-10:47 pm

2 stops40h 12m

$1,123

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Mon 7/28

9:00 pm-9:59 pm

2 stops37h 44m

$1,132

KathmanduOntario

KTM - ONT

KTMONT

Kathmandu Tribhuvan

Tue 7/29

4:20 pm-9:59 pm

2 stops42h 24m

$1,738

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Best time to book a flight from Kathmandu to Ontario

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

Cheapflights Insights

Everything you need to know about your flight from Kathmandu to Ontario

What is the cheapest month to book a flight from Kathmandu to Ontario?

Currently, August is the cheapest month in which you can book a flight from Kathmandu to Ontario (average of $246). Flying from Kathmandu to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Ontario. Reviews last updated July 1, 2025.
Get a feel of what it's like to fly with Korean Air, Qatar Airways, and Etihad Airways from Kathmandu to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Korean Air
8.4
Very good
1,101 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Qatar Airways
7.4
Good
3,596 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Etihad Airways
7.4
Good
1,224 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.
Air India
5.5
Fair
2,922 reviews
Korean Air
8.4
Very good
1,101 reviews

Boarding

8.5

Food

8.1

Comfort

8.3

Overall

8.4

Entertainment

8.2

Crew

8.7

Reviews

1 / 20
10.0
Excellent

Myung Suk,May 2025

ICN - LAX

The flight was less crowded and the economic class seat was at least 5 inches longer than other airlines.

Related info for your journey

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

  • What are the cheapest airlines to fly from Kathmandu to Ontario one-way?

    $1,065 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on Korean Air and Air India, with prices starting from $1,123 and $1,132, respectively.

  • Can I find deals for flights from Kathmandu to Ontario that include hotel bookings?

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

  • How can I find direct flights from Kathmandu to Ontario?

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

  • Can I find deals for business class flights from Kathmandu to Ontario?

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

  • What is the cheapest month to book a flight from Kathmandu to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Kathmandu to Ontario (average of $246). Flying from Kathmandu to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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