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Kuala Lumpur Intl

$391+ Cheap flights from Ontario (ONT) to Kuala Lumpur Intl (KUL)

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — KUL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Kuala Lumpur Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kuala Lumpur Intl (KUL). 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 September 15, 2025.

Round-trip from

$720
(United Airlines)

One-way from

$391
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$898
From Ontario to Kuala Lumpur Intl
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One-way flight from Ontario to Kuala Lumpur Intl
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Highest demand for flights based on searches. 19% potential increase in price ($291 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($106 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Kuala Lumpur Intl

Cheapest flights from Ontario to Kuala Lumpur Intl
Explore the most affordable flight options available from Ontario to Kuala Lumpur Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:00 amONT - KUL
2 stops48h 10mDelta
Wed 10/111:15 pmKUL - ONT
2 stops39h 27mDelta
Deal found 9/14$706
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2111:50 amONT - KUL
2 stops66h 20mDelta
Wed 10/111:15 pmKUL - ONT
2 stops39h 27mDelta
Deal found 9/14$712
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amONT - KUL
2 stops40h 55mUnited Airlines
Tue 11/258:30 pmKUL - ONT
2 stops37h 04mUnited Airlines
Deal found 9/14$720
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/255:05 amONT - KUL
2 stops27h 50mUnited Airlines
Mon 9/292:15 pmKUL - ONT
2 stops42h 25mUnited Airlines
Deal found 9/14$724
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/235:10 amONT - KUL
2 stops27h 45mUnited Airlines
Tue 9/307:15 amKUL - ONT
2 stops28h 09mUnited Airlines
Deal found 9/15$727
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/56:00 amONT - KUL
2 stops48h 10mDelta
Mon 11/311:55 pmKUL - ONT
2 stops33h 15mDelta
Deal found 9/15$735
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/45:40 pmONT - KUL
2 stops60h 30mDelta
Wed 11/511:55 pmKUL - ONT
2 stops38h 46mDelta
Deal found 9/15$741
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:00 amONT - KUL
2 stops48h 10mDelta
Thu 11/611:55 pmKUL - ONT
2 stops38h 46mDelta
Deal found 9/14$764
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:00 amONT - KUL
2 stops48h 10mDelta
Sun 9/2811:15 pmKUL - ONT
2 stops39h 27mDelta
Deal found 9/14$787
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/215:40 pmONT - KUL
2 stops60h 30mDelta
Sun 9/2811:15 pmKUL - ONT
2 stops39h 27mDelta
Deal found 9/14$793
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/166:00 amONT - KUL
2 stops48h 10mDelta
Sat 9/2711:15 pmKUL - ONT
2 stops50h 54mDelta
Deal found 9/14$844
This Delta deal was found by Cheapflights users on 9/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2111:50 amONT - KUL
2 stops66h 20mDelta
Sat 9/2711:15 pmKUL - ONT
2 stops50h 54mDelta
Deal found 9/14$850

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kuala Lumpur Intl 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 September 15, 2025.
Use the filters below to find and compare flights from Ontario to Kuala Lumpur Intl Airport that are best for you.

Fly from

Ontario

Fly to

Kuala Lumpur Intl

Route

Depart

Return

Price

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Thu 9/25

5:05 am-11:55 pm

2 stops27h 50m

Kuala Lumpur Intl

Mon 9/29

2:15 pm-10:52 pm

2 stops47h 37m

$724

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sun 10/5

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Mon 11/3

11:55 pm-5:10 pm

2 stops33h 15m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sun 10/5

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Wed 11/5

11:55 pm-5:10 pm

2 stops33h 15m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sat 10/4

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Mon 11/3

11:55 pm-9:20 pm

2 stops37h 25m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sat 10/4

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Wed 11/5

11:55 pm-10:41 pm

2 stops38h 46m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sun 10/5

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Sun 11/2

11:55 pm-5:10 pm

2 stops33h 15m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sun 10/5

6:00 am-9:10 pm

2 stops48h 10m

Kuala Lumpur Intl

Tue 11/4

11:55 pm-5:10 pm

2 stops33h 15m

$735

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sat 10/4

5:40 pm-9:10 pm

2 stops60h 30m

Kuala Lumpur Intl

Tue 11/4

11:55 pm-5:10 pm

2 stops33h 15m

$741

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Fri 11/14

6:00 am-10:20 am

2 stops36h 20m

Kuala Lumpur Intl

Mon 12/1

5:00 pm-12:17 pm

2 stops35h 17m

$858

OntarioKuala Lumpur

ONT - KUL

ONTKUL

Ontario

Sun 11/16

1:40 pm-10:20 am

2 stops28h 40m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 21 results
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Best time to book a flight from Ontario to Kuala Lumpur Intl

Have a flexible travel schedule? Discover the best time to fly to Kuala Lumpur Intl from Ontario 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 Ontario to Kuala Lumpur Intl Airport

What is the cheapest month to book a flight from Ontario to Kuala Lumpur Intl Airport?

Currently, March is the cheapest month in which you can book a flight from Ontario to Kuala Lumpur Intl Airport (average of $967). Flying from Ontario to Kuala Lumpur Intl Airport in June is currently the most expensive (average of $1,418). 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.

What is the cheapest time of day to fly from ONT to KUL?

Find hourly flight availability from Ontario to Kuala Lumpur Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 21% on flights from Ontario to Kuala Lumpur Intl Airport by exploring options for tickets at noon.

Reviews of airlines servicing Kuala Lumpur Intl

Get insights into the airlines that provide service to Kuala Lumpur Intl. 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 Kuala Lumpur Intl. Reviews last updated September 15, 2025.
Read reviews from past customers who have flown China Airlines from Ontario to Kuala Lumpur Intl Airport. 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.
China Airlines
8.3
Very good
767 reviews

Overall

8.3

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.
China Airlines
8.3
Very good
767 reviews
China Airlines
8.3
Very good
767 reviews

Overall

8.3

Food

7.8

Comfort

8.0

Boarding

8.3

Entertainment

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Anonymous,Jul 2025

SFO - TPE

Bad News - The flight was delayed and it was due to ground crew issues but the staff were moving things along. The seat size was cramp and i am a lean person. The attendant kept asking me in Chinese when i already stated i don’t speak the language. The food was bad. The taste, aroma, consistent of mush. Even a cafeteria lady can cook better food. Kudos - the pilot made up for lost time to the best of his ability. He made sure that the flight was smooth even though there was occasional turbulence. The landing was great.

Related info for your journey

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

  • What airport do you fly from for flights from Ontario to Kuala Lumpur Intl?

    For a flight from Ontario to Kuala Lumpur Intl, you will be flying from Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 outbound flights to Kuala Lumpur Intl per day. 1 airline has flights to Kuala Lumpur Intl from Ontario on a regular basis.

  • How long is the flight from Ontario to Kuala Lumpur Intl Airport?

    Departing from Ontario to Kuala Lumpur Intl Airport will take you 27h 50m. There are 8828 mi between Ontario and Kuala Lumpur Intl Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What is the cheapest airline to fly from Ontario to Kuala Lumpur Intl Airport round-trip?

    According to our current data, China Airlines ($938), offers the cheapest pricing from Ontario to Kuala Lumpur Intl Airport. Users have found that China Airlines is 21% cheaper than the other options available to this destination.

  • Can I find deals for flights from Ontario to Kuala Lumpur Intl that include hotel bookings?

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

  • How can I find direct flights from Ontario to Kuala Lumpur Intl?

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

  • Can I find deals for business class flights from Ontario to Kuala Lumpur Intl?

    Yes. Cheapflights offers flight deals from Ontario to Kuala Lumpur Intl 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 Ontario to Kuala Lumpur Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Kuala Lumpur Intl Airport (average of $967). Flying from Ontario to Kuala Lumpur Intl Airport in June is currently the most expensive (average of $1,418). 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

Traveling to a place near Kuala Lumpur Intl Airport?

Book flights to Kuala Lumpur Intl Airport if you plan to visit one of these locations
Putrajaya
Port Dickson
Genting Highlands
Sepang
Petaling Jaya
Shah Alam
Puchong

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Ontario to Kuala Lumpur Intl

Discover the top airline that operate flights from Ontario to Kuala Lumpur Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
China AirlinesCheapest$938Average$1,306FlexibilityNo cancel feeOn-time70%

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