Which airports can I use when flying from Kathmandu to Ontario?

Flights from Kathmandu to Ontario usually depart from Kathmandu Tribhuvan (KTM) and arrive at Ontario (ONT).

What cabin classes can I book on flights from Kathmandu to Ontario?

Only Economy Class is available on flights from Kathmandu to Ontario.

What popular places can I visit in Ontario?

Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Do I need a passport to fly from Kathmandu to Ontario?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Kathmandu to Ontario changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,798 to $13,405. That means the highest observed fare was about 7x higher than the lowest one.

How are flight prices from Kathmandu to Ontario looking right now?

One-way fares from Kathmandu to Ontario are currently lower than usual. Average one-way flight prices are about $1,005, which is 26% below the typical average for this route.

What is the time difference between Kathmandu and Ontario?

Ontario is 12 hours behind Kathmandu (Pacific Time vs Nepal Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Ontario Airport (ONT)?

Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include: • Fox • Thrifty • Europcar • Dollar • Alamo

Which airline is the cheapest to fly from Kathmandu to Ontario?

Qatar Airways ($1,798) offered the cheapest round-trip ticket from Kathmandu to Ontario in the last 5 days.

$753 CHEAP FLIGHTS from Kathmandu to Ontario (KTM - ONT)

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Cheapest one-way

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Typical prices: $951-$1,354

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KTM - ONT • 2 stops

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Flight Deals

Cheap Flights from Kathmandu to Ontario (KTM-ONT)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Kathmandu to Ontario

Sun, Dec 20 - Wed, Jan 20

5:30 pm - 8:03 pmKTM Kathmandu Tribhuvan-ONT Ontario

40h 18m2 stops Doha Hamad Intl Seattle/Tacoma Intl

11:36 am - 4:15 pmONT Ontario-KTM Kathmandu Tribhuvan

38h 54m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$1,798Qatar Airways

Sat, Jan 9 - Sat, Feb 13

5:30 pm - 10:41 pmKTM Kathmandu Tribhuvan-ONT Ontario

42h 56m2 stops Doha Hamad Intl Seattle/Tacoma Intl

6:00 am - 4:15 pmONT Ontario-KTM Kathmandu Tribhuvan

44h 30m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$2,046Qatar Airways

Thu, Nov 12 - Sun, Dec 6

3:50 pm - 11:06 pmKTM Kathmandu Tribhuvan-ONT Ontario

45h 01m2 stops Doha Hamad Intl Seattle/Tacoma Intl

6:00 am - 5:45 pmONT Ontario-KTM Kathmandu Tribhuvan

46h 00m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$2,254Multiple Airlines

Mon, Nov 16 - Tue, May 11

5:30 pm - 1:32 pmKTM Kathmandu Tribhuvan-ONT Ontario

33h 47m2 stops Doha Hamad Intl Dallas/Fort Worth

12:00 pm - 8:50 amONT Ontario-KTM Kathmandu Tribhuvan

32h 05m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$2,379Qatar Airways

Sun, Feb 21 - Fri, Mar 5

7:00 pm - 6:42 pmKTM Kathmandu Tribhuvan-ONT Ontario

37h 27m2 stops Doha Hamad Intl Dallas/Fort Worth

12:49 pm - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

29h 46m2 stops Dallas/Fort Worth Doha Hamad Intl

$2,461Qatar Airways

Fri, Dec 18 - Sun, Jan 3

5:30 pm - 1:31 pmKTM Kathmandu Tribhuvan-ONT Ontario

33h 46m2 stops Doha Hamad Intl Dallas/Fort Worth

12:51 pm - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

29h 44m2 stops Dallas/Fort Worth Doha Hamad Intl

$3,161Qatar Airways

Wed, Nov 25 - Wed, Dec 2

5:30 pm - 1:19 pmKTM Kathmandu Tribhuvan-ONT Ontario

33h 34m2 stops Doha Hamad Intl Dallas/Fort Worth

1:02 pm - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

29h 33m2 stops Dallas/Fort Worth Doha Hamad Intl

$3,585Qatar Airways

Thu, Jan 7 - Thu, Feb 4

5:30 pm - 1:28 pmKTM Kathmandu Tribhuvan-ONT Ontario

33h 43m2 stops Doha Hamad Intl Dallas/Fort Worth

2:23 pm - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

28h 12m2 stops Dallas/Fort Worth Doha Hamad Intl

$3,592Qatar Airways

Fri, Nov 13 - Thu, Dec 10

3:50 pm - 1:31 pmKTM Kathmandu Tribhuvan-ONT Ontario

35h 26m2 stops Doha Hamad Intl Dallas/Fort Worth

1:02 pm - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

29h 33m2 stops Dallas/Fort Worth Doha Hamad Intl

$3,691Qatar Airways

Tue, Nov 10 - Mon, Jan 25

5:30 pm - 1:32 pmKTM Kathmandu Tribhuvan-ONT Ontario

33h 47m2 stops Doha Hamad Intl Dallas/Fort Worth

11:36 am - 8:20 amONT Ontario-KTM Kathmandu Tribhuvan

30h 59m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$5,073Qatar Airways

Booking Insights

Price, demand and travel trends for Kathmandu to Ontario flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Which airline is the cheapest to fly from Kathmandu to Ontario?: Qatar Airways ($1,798) offered the cheapest round-trip ticket from Kathmandu to Ontario in the last 5 days.

Find deals

Cheapest flight	$753

One-way flight from Kathmandu to Ontario

When to book flights from Kathmandu to Ontario

Are your dates flexible? Find out the best times to travel from Kathmandu to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

What cabin classes can I book on flights from Kathmandu to Ontario?
Only Economy Class is available on flights from Kathmandu to Ontario.
Do I need a passport to fly from Kathmandu to Ontario?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Kathmandu to Ontario changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $1,798 to $13,405. That means the highest observed fare was about 7x higher than the lowest one.
How are flight prices from Kathmandu to Ontario looking right now?
One-way fares from Kathmandu to Ontario are currently lower than usual. Average one-way flight prices are about $1,005, which is 26% below the typical average for this route.
What car rental options are available at Ontario Airport (ONT)?
Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates averaging $60 for economy cars. Top options include:

• Fox
• Thrifty
• Europcar
• Dollar
• Alamo
Which airports can I use when flying from Kathmandu to Ontario?
Flights from Kathmandu to Ontario usually depart from Kathmandu Tribhuvan (KTM) and arrive at Ontario (ONT).
What is the time difference between Kathmandu and Ontario?
Ontario is 12 hours behind Kathmandu (Pacific Time vs Nepal Time). Plan for the time shift when scheduling connections or first-day activities.
What popular places can I visit in Ontario?
Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

• Ontario Airport Inn
• Azure Hotel & Suites, Trademark Collection by Wyndham
• Holiday Inn Ontario Airport By IHG

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KTM - ONT

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Everything you should know

Cheap Flights from Kathmandu to Ontario (KTM-ONT)

Recent round-trip flight deals from Kathmandu to Ontario

Recent one-way flight deals from Kathmandu to Ontario

Recent last minute flight deals from Kathmandu to Ontario

Price, demand and travel trends for Kathmandu to Ontario flights

Which airline is the cheapest to fly from Kathmandu to Ontario?

Key details for Kathmandu to Ontario flights

Cheapest flight

When to book flights from Kathmandu to Ontario

Your Kathmandu to Ontario flight questions, answered

Your guide to booking Kathmandu to Ontario flights

More options for your flight from Kathmandu to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Kathmandu to Ontario

Find direct flights to and from Kathmandu and Ontario

Flights from domestic origins to Ontario

Flights to other popular destinations

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