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Düsseldorf

$597+ Cheap flights from Ontario (ONT) to Düsseldorf

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUS
Mar 20 — Mar 271
Fri 3/20
Fri 3/27
1 adult, Economy
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Cheap flight deals from Ontario to Düsseldorf

Cheapest flights from Ontario to Düsseldorf
Explore the most affordable flight options available from Ontario to Düsseldorf. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 18, 2026.

This United Airlines deal was found by Cheapflights users on 2/17. 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 4/1311:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Wed 4/2910:40 am
DUS
-
ONT
2 stops20h 46m
United Airlines
Deal found 2/17$597
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/811:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Tue 4/219:20 am
DUS
-
ONT
2 stops20h 16m
United Airlines
Deal found 2/16$598
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/811:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Fri 4/249:30 am
DUS
-
ONT
2 stops17h 17m
United Airlines
Deal found 2/16$599
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/127:00 am
ONT
-
DUS
2 stops16h 25m
United Airlines
Thu 4/239:30 am
DUS
-
ONT
2 stops17h 17m
United Airlines
Deal found 2/16$612
This United Airlines deal was found by Cheapflights users on 2/16. 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 4/911:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Thu 4/239:30 am
DUS
-
ONT
2 stops17h 17m
United Airlines
Deal found 2/16$649
This oojo deal was found by Cheapflights users on 2/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:02 pm
ONT
-
DUS
2 stops17h 43m
British Airways
Mon 3/27:05 am
DUS
-
ONT
2 stops24h 44m
British Airways
Deal found 2/15$882
This Trip.com deal was found by Cheapflights users on 2/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2810:20 pm
ONT
-
DUS
2 stops24h 20m
KLM
Mon 3/166:40 pm
DUS
-
ONT
2 stops29h 48m
KLM
Deal found 2/15$891
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Sun 2/151:50 pm
ONT
-
DUS
2 stops43h 05m
United Airlines
Sat 2/286:20 am
DUS
-
ONT
2 stops24h 39m
United Airlines
Deal found 2/15$915
This United Airlines deal was found by Cheapflights users on 2/15. 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.
Sat 2/211:45 pm
ONT
-
DUS
2 stops38h 50m
United Airlines
Sat 2/286:20 am
DUS
-
ONT
2 stops24h 39m
United Airlines
Deal found 2/15$916
This United Airlines deal was found by Cheapflights users on 2/17. 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 2/196:10 am
ONT
-
DUS
2 stops22h 25m
United Airlines
Mon 2/232:30 pm
DUS
-
ONT
2 stops39h 20m
United Airlines
Deal found 2/17$930
This oojo deal was found by Cheapflights users on 2/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/185:02 pm
ONT
-
DUS
2 stops17h 43m
British Airways
Fri 2/278:25 pm
DUS
-
ONT
2 stops28h 54m
British Airways
Deal found 2/15$933
This United Airlines deal was found by Cheapflights users on 2/16. 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.
Fri 5/110:37 am
ONT
-
DUS
2 stops18h 38m
United Airlines
Wed 5/276:10 am
DUS
-
ONT
2 stops20h 18m
United Airlines
Deal found 2/16$953

Find flight deals from Ontario to Düsseldorf

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Düsseldorf (DU1). 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 February 18, 2026.

Round-trip from

$597
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$603
From Ontario to Düsseldorf
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Düsseldorf 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 February 18, 2026.
Use the filters below to find and compare flights from Ontario to Düsseldorf that are best for you.

Fly from

Ontario

Fly to

Düsseldorf

Route

Depart

Return

Price

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 4/13

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Wed 4/29

10:40 am-10:26 pm

2 stops20h 46m

$597

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 4/8

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Tue 4/21

9:20 am-8:36 pm

2 stops20h 16m

$598

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 4/8

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Wed 4/22

9:30 am-5:47 pm

2 stops17h 17m

$599

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 4/8

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Thu 4/23

9:30 am-5:47 pm

2 stops17h 17m

$599

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 4/12

7:00 am-8:25 am

2 stops16h 25m

Duesseldorf Intl

Thu 4/23

9:30 am-5:47 pm

2 stops17h 17m

$612

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 4/9

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Thu 4/23

9:30 am-5:47 pm

2 stops17h 17m

$649

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 2/28

10:20 pm-7:40 am

2 stops24h 20m

Duesseldorf Intl

Mon 3/16

6:40 pm-4:28 pm

2 stops29h 48m

$891

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 5/1

10:37 am-2:15 pm

2 stops18h 38m

Duesseldorf Intl

Wed 5/27

6:10 am-5:28 pm

2 stops20h 18m

$953

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 4/10

11:05 am-2:15 pm

2 stops18h 10m

Duesseldorf Intl

Thu 4/23

9:20 am-8:36 pm

2 stops20h 16m

$996

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 5/1

7:00 am-8:40 am

2 stops16h 40m

Duesseldorf Intl

Thu 5/21

9:20 am-10:37 pm

2 stops22h 17m

$1,078

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/15

Showing 1-10 of 17 results
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Best time to book a flight from Ontario to Düsseldorf

Have a flexible travel schedule? Discover the best time to fly to Düsseldorf 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 Düsseldorf

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

Currently, February is the cheapest month in which you can book a flight from Ontario to Düsseldorf (average of $422). Flying from Ontario to Düsseldorf in June is currently the most expensive (average of $890). 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 Düsseldorf. 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 Düsseldorf?

    Located just 3.1 mi from the city center, Ontario is the airport most travelers will use when flying to Düsseldorf from Ontario. Booking flights from Ontario (ONT) to Düsseldorf should be relatively easy as there are 0 daily outbound flights to Düsseldorf from 0 different airlines.

  • How long is the flight from Ontario to Düsseldorf?

    A quick flight from Ontario to Düsseldorf can take about 16h 35m. United Airlines provides one of the quickest options available for as low as $597. Airlines will cover a distance of 5641 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Düsseldorf 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 Düsseldorf?

    Currently, February is the cheapest month in which you can book a flight from Ontario to Düsseldorf (average of $422). Flying from Ontario to Düsseldorf in June is currently the most expensive (average of $890). 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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