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Cheap flights from Kathmandu to Los Angeles from $730

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kathmandu to Los Angeles departing on 10/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Kathmandu to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
12:25 am - 6:00 pmKTM  Kathmandu Tribhuvan-ONT Ontario
30h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
10:50 pm - 11:25 pmONT  Ontario-KTM Kathmandu Tribhuvan
34h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,231Multiple Airlines
Thu, Oct 8 - Tue, Mar 9
Multiple Airlines Logo
12:25 am - 6:40 pmKTM  Kathmandu Tribhuvan-ONT Ontario
31h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 7:00 pmONT  Ontario-KTM Kathmandu Tribhuvan
30h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,321Multiple Airlines
Mon, Sep 14 - Wed, Oct 14
Multiple Airlines Logo
12:25 am - 6:40 pmKTM  Kathmandu Tribhuvan-ONT Ontario
31h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 7:00 pmONT  Ontario-KTM Kathmandu Tribhuvan
30h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,339Multiple Airlines
Wed, Sep 9 - Wed, Oct 14
Multiple Airlines Logo
12:25 am - 6:40 pmKTM  Kathmandu Tribhuvan-ONT Ontario
31h 00m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 12:25 pmONT  Ontario-KTM Kathmandu Tribhuvan
47h 30m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,377Multiple Airlines
Wed, Sep 9 - Tue, Oct 6
Korean Air Logo
7:20 pm - 10:40 pmKTM  Kathmandu Tribhuvan-ONT Ontario
40h 05m2 stops Incheon Intl Seattle/Tacoma Intl
Korean Air Logo
6:00 am - 5:15 pmONT  Ontario-KTM Kathmandu Tribhuvan
46h 30m2 stops Seattle/Tacoma Intl Incheon Intl
$1,437Korean Air
Sat, Sep 19 - Thu, Sep 24
Korean Air Logo
7:20 pm - 10:40 pmKTM  Kathmandu Tribhuvan-ONT Ontario
40h 05m2 stops Incheon Intl Seattle/Tacoma Intl
Korean Air Logo
7:00 am - 5:45 pmONT  Ontario-KTM Kathmandu Tribhuvan
46h 00m2 stops Seattle/Tacoma Intl Incheon Intl
$1,442Korean Air
Tue, Sep 22 - Sun, Mar 21
Multiple Airlines Logo
12:25 am - 6:00 pmKTM  Kathmandu Tribhuvan-ONT Ontario
30h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 7:00 pmONT  Ontario-KTM Kathmandu Tribhuvan
30h 05m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
$1,456Multiple Airlines
Fri, Oct 2 - Sat, Oct 17
Multiple Airlines Logo
12:25 am - 6:00 pmKTM  Kathmandu Tribhuvan-ONT Ontario
30h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 7:50 pmONT  Ontario-KTM Kathmandu Tribhuvan
30h 55m3 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi New Delhi Indira Gandhi Intl
$1,478Multiple Airlines
Fri, Oct 2 - Sat, Oct 17
Multiple Airlines Logo
12:25 am - 6:00 pmKTM  Kathmandu Tribhuvan-ONT Ontario
30h 20m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
Multiple Airlines Logo
12:10 am - 10:30 pmONT  Ontario-KTM Kathmandu Tribhuvan
33h 35m3 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi Guangzhou Baiyun
$1,506Multiple Airlines
Tue, Sep 15 - Tue, Oct 20
Korean Air Logo
7:20 pm - 11:47 pmKTM  Kathmandu Tribhuvan-ONT Ontario
41h 12m2 stops Incheon Intl Salt Lake City
Korean Air Logo
7:00 am - 5:45 pmONT  Ontario-KTM Kathmandu Tribhuvan
46h 00m2 stops Seattle/Tacoma Intl Incheon Intl
$1,532Korean Air
Tue, Sep 22 - Sun, Mar 21

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Korean Air flights from Kathmandu to Ontario

Our best Korean Air deals on Kathmandu to Ontario flight tickets
Korean Air
Sep 19
KTM7:20 pmKathmandu Tribhuvan
40h 05m
2 stops
ONT10:40 pmOntario
Sep 24
ONT6:00 amOntario
46h 30m
2 stops
KTM5:15 pmKathmandu Tribhuvan
$1,437
Korean Air
Sep 22
KTM7:20 pmKathmandu Tribhuvan
40h 05m
2 stops
ONT10:40 pmOntario
Mar 21
ONT7:00 amOntario
46h 00m
2 stops
KTM5:45 pmKathmandu Tribhuvan
$1,442
Korean Air
Sep 22
KTM7:20 pmKathmandu Tribhuvan
41h 12m
2 stops
ONT11:47 pmOntario
Mar 21
ONT7:00 amOntario
46h 00m
2 stops
KTM5:45 pmKathmandu Tribhuvan
$1,532

Air India flights from Kathmandu to Ontario

Our best Air India deals on Kathmandu to Ontario flight tickets
Air India
Sep 22
KTM1:25 pmKathmandu Tribhuvan
35h 32m
3 stops
ONT12:12 pmOntario
Sep 23
ONT10:39 pmOntario
32h 46m
2 stops
KTM8:10 pmKathmandu Tribhuvan
$1,644
Air India
Oct 9
KTM9:10 pmKathmandu Tribhuvan
37h 44m
2 stops
ONT10:09 pmOntario
Feb 4
ONT6:00 amOntario
37h 20m
3 stops
KTM9:05 amKathmandu Tribhuvan
$1,737
Air India
Aug 21
KTM1:25 pmKathmandu Tribhuvan
35h 32m
3 stops
ONT12:12 pmOntario
Sep 5
ONT11:13 pmOntario
32h 12m
2 stops
KTM8:10 pmKathmandu Tribhuvan
$1,809

momondo 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, momondo users made 832,500 searches. Data last updated August 18, 2026.
Use the filters below to find and compare flights from Kathmandu to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Thu 10/8

12:25 am-6:00 pm

2 stops30h 20m

Ontario

Tue 3/9

10:50 pm-11:25 pm

2 stops34h 50m

$1,231

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Mon 9/14

12:25 am-6:40 pm

2 stops31h 00m

Ontario

Wed 10/14

12:10 am-7:00 pm

2 stops30h 05m

$1,321

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Wed 9/9

12:25 am-6:40 pm

2 stops31h 00m

Ontario

Wed 10/14

12:10 am-7:00 pm

2 stops30h 05m

$1,339

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Wed 9/9

12:25 am-6:40 pm

2 stops31h 00m

Ontario

Tue 10/6

12:10 am-12:25 pm

2 stops47h 30m

$1,377

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Sat 9/19

7:20 pm-10:40 pm

2 stops40h 05m

Ontario

Thu 9/24

6:00 am-5:15 pm

2 stops46h 30m

$1,437

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Tue 9/22

7:20 pm-10:40 pm

2 stops40h 05m

Ontario

Sun 3/21

7:00 am-5:45 pm

2 stops46h 00m

$1,442
Quickest round-trip

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Fri 10/2

12:25 am-6:00 pm

2 stops30h 20m

Ontario

Sat 10/17

12:10 am-7:00 pm

2 stops30h 05m

$1,456

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Fri 10/2

12:25 am-6:00 pm

2 stops30h 20m

Ontario

Sat 10/17

12:10 am-7:50 pm

3 stops30h 55m

$1,478

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Tue 9/15

12:25 am-6:00 pm

2 stops30h 20m

Ontario

Tue 10/20

12:10 am-10:30 pm

3 stops33h 35m

$1,506

KathmanduOntario

KTM Kathmandu Tribhuvan - ONT Ontario

KTMONT

Kathmandu Tribhuvan

Tue 9/22

7:20 pm-11:47 pm

2 stops41h 12m

Ontario

Sun 3/21

7:00 am-5:45 pm

2 stops46h 00m

$1,532

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Los Angeles from

How to get the cheapest flight ticket from Kathmandu to Ontario

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Ontario?

Sichuan Airlines, Qatar Airways and China Southern are the top three most popular airlines that fly to Ontario from Kathmandu according to our data. Sichuan Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 4 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Kathmandu to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Kathmandu to Ontario according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kathmandu to Ontario (KTM to ONT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kathmandu to Ontario

Best Price Found

$730

Fastest flight time

35h 32m

Direct flights

None
The best one-way flight to Ontario from Kathmandu in the past 72 hours is $730. The best round-trip flight deal from Kathmandu to Ontario found on momondo in the last 72 hours is $1,231.
The fastest flight from Kathmandu to Ontario takes 35h 32m
There are no direct flights from Kathmandu to Ontario. There are no popular flight routes from Kathmandu to Ontario.
Search flight deals

Frequently asked questions about flying from Kathmandu to Ontario

  • How far is Kathmandu Tribhuvan to Ontario by plane?

    The straight-line distance from Kathmandu Tribhuvan to Ontario is 7905.6 mi. Typically, this will take 35h 32m by plane in normal conditions.

  • When did momondo last update prices for flights from Kathmandu Tribhuvan Airport to Ontario Airport?

    Prices for flights from Kathmandu Tribhuvan Airport to Ontario Airport refresh daily.

  • How old do you have to be to fly from Kathmandu Tribhuvan Airport to Ontario Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kathmandu Tribhuvan Airport to Ontario Airport.

  • What documentation or ID do you need to fly to Ontario Airport?

    The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from Kathmandu to Ontario?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Kathmandu to Ontario. momondo saves you time and could save you money on your trip.

Can I find flights from Kathmandu to Ontario with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Ontario from Kathmandu with this policy.

How can momondo help me find flights from Kathmandu to Ontario?

momondo helps you find the best flight between Kathmandu and Ontario by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Kathmandu to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Kathmandu are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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