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Duesseldorf Intl

$426+ Cheap flights from Ontario (ONT) to Duesseldorf Intl (DUS)

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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUS
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Ontario to Duesseldorf Intl

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Duesseldorf Intl (DUS). 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

$668
(United Airlines)

One-way from

$426
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$822
From Ontario to Duesseldorf Intl
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One-way flight from Ontario to Duesseldorf Intl
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Highest demand for flights based on searches. 20% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 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 Duesseldorf Intl

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

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 12/41:34 pmONT - DUS
2 stops15h 01mUnited Airlines
Thu 1/1510:50 amDUS - ONT
2 stops20h 08mUnited Airlines
Deal found 9/14$668
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.
Sun 12/141:34 pmONT - DUS
2 stops18h 06mUnited Airlines
Sat 1/109:45 amDUS - ONT
2 stops22h 08mUnited Airlines
Deal found 9/14$1,011
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.
Tue 11/251:40 pmONT - DUS
2 stops19h 25mUnited Airlines
Sun 11/3010:40 amDUS - ONT
2 stops20h 09mUnited Airlines
Deal found 9/14$1,174
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.
Sat 12/131:34 pmONT - DUS
2 stops15h 16mUnited Airlines
Tue 12/3010:50 amDUS - ONT
2 stops19h 17mUnited Airlines
Deal found 9/14$1,247
This Delta deal was found by Cheapflights users on 9/13. 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 12/1411:45 amONT - DUS
2 stops17h 00mDelta
Tue 12/306:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/13$1,382
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.
Fri 12/127:05 amONT - DUS
2 stops15h 35mDelta
Tue 12/306:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/14$1,392
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/231:53 pmONT - DUS
2 stops19h 07mUnited Airlines
Sun 10/267:00 amDUS - ONT
2 stops18h 34mUnited Airlines
Deal found 9/13$1,394
This flugladen.de deal was found by Cheapflights users on 9/13. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/287:05 amONT - DUS
2 stops29h 50mMultiple Airlines
Thu 10/27:00 amDUS - ONT
2 stops24h 40mMultiple Airlines
Deal found 9/13$1,430
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.
Wed 12/2411:45 amONT - DUS
2 stops17h 00mDelta
Fri 1/26:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/15$1,676
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.
Wed 9/241:15 pmONT - DUS
2 stops16h 05mUnited Airlines
Sun 9/2811:05 amDUS - ONT
2 stops18h 19mUnited Airlines
Deal found 9/15$1,702
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.
Wed 12/2411:45 amONT - DUS
2 stops17h 00mDelta
Sat 1/36:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/15$1,721
This Qatar Airways 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/42:54 pmONT - DUS
2 stops61h 51mMultiple Airlines
Wed 10/83:25 pmDUS - ONT
2 stops31h 36mMultiple Airlines
Deal found 9/14$1,953

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Duesseldorf 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 Duesseldorf Intl Airport that are best for you.

Fly from

Ontario

Fly to

Duesseldorf Intl

Route

Depart

Return

Price

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 12/4

1:34 pm-1:35 pm

2 stops15h 01m

Duesseldorf Intl

Thu 1/15

10:50 am-9:58 pm

2 stops20h 08m

$668

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/14

1:34 pm-4:40 pm

2 stops18h 06m

Duesseldorf Intl

Sat 1/10

9:45 am-10:53 pm

2 stops22h 08m

$1,011

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 11/25

1:40 pm-6:05 pm

2 stops19h 25m

Duesseldorf Intl

Sun 11/30

10:40 am-9:49 pm

2 stops20h 09m

$1,174

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 12/13

1:34 pm-1:50 pm

2 stops15h 16m

Duesseldorf Intl

Tue 12/30

10:50 am-9:07 pm

2 stops19h 17m

$1,247

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/14

11:45 am-1:45 pm

2 stops17h 00m

Duesseldorf Intl

Tue 12/30

6:15 am-4:15 pm

2 stops19h 00m

$1,382

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 12/12

7:05 am-7:40 am

2 stops15h 35m

Duesseldorf Intl

Tue 12/30

6:15 am-4:15 pm

2 stops19h 00m

$1,392

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 10/23

1:53 pm-6:00 pm

2 stops19h 07m

Duesseldorf Intl

Sun 10/26

7:00 am-5:34 pm

2 stops18h 34m

$1,394

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 9/28

7:05 am-9:55 pm

2 stops29h 50m

Duesseldorf Intl

Thu 10/2

7:00 am-10:40 pm

2 stops24h 40m

$1,430

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 12/24

11:45 am-1:45 pm

2 stops17h 00m

Duesseldorf Intl

Fri 1/2

6:15 am-4:15 pm

2 stops19h 00m

$1,676

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 12/24

11:45 am-1:45 pm

2 stops17h 00m

Duesseldorf Intl

Sat 1/3

6:15 am-4:15 pm

2 stops19h 00m

$1,721

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 18 results
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Best time to book a flight from Ontario to Duesseldorf Intl

Have a flexible travel schedule? Discover the best time to fly to Duesseldorf 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 Duesseldorf Intl Airport

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Duesseldorf Intl Airport (average of $662). Flying from Ontario to Duesseldorf Intl Airport in June is currently the most expensive (average of $1,059). 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.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Duesseldorf 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 Duesseldorf Intl?

    If you book a flight to Duesseldorf Intl from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Duesseldorf Intl per day from 0 different airlines.

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

    United Airlines can get you from Ontario to Duesseldorf Intl Airport in just under 15h 01m. Your travel time can differ by up to . The distance between Ontario and Duesseldorf Intl Airport is about 5641 mi.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Ontario to Duesseldorf Intl Airport (average of $662). Flying from Ontario to Duesseldorf Intl Airport in June is currently the most expensive (average of $1,059). 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 Duesseldorf Intl Airport?

Book flights to Duesseldorf Intl Airport if you plan to visit one of these locations
Mönchengladbach
Neuss
Wuppertal
Bochum
Duisburg
Gelsenkirchen

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