HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Duesseldorf Intl

$419+ 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 5/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Duesseldorf Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 February 5, 2026.

This United Airlines deal was found by Cheapflights users on 2/3. 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 4/1911:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Wed 4/299:20 am
DUS
-
ONT
2 stops20h 16m
United Airlines
Deal found 2/3$597
This United Airlines deal was found by Cheapflights users on 2/4. 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 4/91:27 pm
ONT
-
DUS
2 stops19h 23m
United Airlines
Thu 4/169:20 am
DUS
-
ONT
2 stops20h 16m
United Airlines
Deal found 2/4$659
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/241:50 pm
ONT
-
DUS
2 stops15h 45m
United Airlines
Wed 4/17:30 am
DUS
-
ONT
2 stops19h 17m
United Airlines
Deal found 2/2$674
This United Airlines deal was found by Cheapflights users on 2/4. 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 3/225:15 am
ONT
-
DUS
2 stops27h 25m
United Airlines
Sun 3/293:30 pm
DUS
-
ONT
2 stops39h 56m
United Airlines
Deal found 2/4$729
This United Airlines deal was found by Cheapflights users on 2/5. 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 2/161:45 pm
ONT
-
DUS
2 stops19h 10m
United Airlines
Wed 3/410:30 am
DUS
-
ONT
2 stops19h 20m
United Airlines
Deal found 2/5$730
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/231:50 pm
ONT
-
DUS
2 stops19h 05m
United Airlines
Thu 3/59:25 am
DUS
-
ONT
2 stops17h 16m
United Airlines
Deal found 2/2$734
This United Airlines deal was found by Cheapflights users on 2/1. 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 3/241:50 pm
ONT
-
DUS
2 stops15h 45m
United Airlines
Tue 3/319:30 am
DUS
-
ONT
2 stops20h 06m
United Airlines
Deal found 2/1$738
This oojo deal was found by Cheapflights users on 2/2. 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.
Mon 3/22:39 pm
ONT
-
DUS
2 stops20h 06m
British Airways
Sun 3/158:30 pm
DUS
-
ONT
2 stops32h 54m
British Airways
Deal found 2/2$745
This Trip.com deal was found by Cheapflights users on 2/4. 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.
Wed 2/181:15 pm
ONT
-
DUS
2 stops19h 25m
Multiple Airlines
Wed 3/48:15 am
DUS
-
ONT
2 stops21h 50m
Multiple Airlines
Deal found 2/4$750
This oojo deal was found by Cheapflights users on 2/4. 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.
Tue 3/310:56 am
ONT
-
DUS
2 stops19h 14m
British Airways
Sun 3/810:35 am
DUS
-
ONT
2 stops19h 32m
British Airways
Deal found 2/4$783
This oojo deal was found by Cheapflights users on 2/2. 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 2/255:02 pm
ONT
-
DUS
2 stops17h 43m
British Airways
Mon 3/27:05 am
DUS
-
ONT
2 stops20h 37m
British Airways
Deal found 2/2$785
This United Airlines deal was found by Cheapflights users on 2/4. 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 2/191:50 pm
ONT
-
DUS
2 stops19h 15m
United Airlines
Mon 2/2310:40 am
DUS
-
ONT
2 stops43h 10m
United Airlines
Deal found 2/4$791

Find 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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$597
(United Airlines)

One-way from

$419
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$673
Provider with most accurate pricing for Ontario-Duesseldorf Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Duesseldorf Intl flights.
Search Deals
From Ontario to Duesseldorf Intl
Search Deals
One-way flight from Ontario to Duesseldorf Intl
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($227 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 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 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 February 5, 2026.
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

Wed 4/29

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Thu 5/7

3:10 pm-10:59 pm

2 stops16h 49m

$597

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 4/28

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Tue 5/5

3:10 pm-10:59 pm

2 stops16h 49m

$597

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 4/19

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

Wed 4/29

9:20 am-8:36 pm

2 stops20h 16m

$597

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 4/9

1:27 pm-5:50 pm

2 stops19h 23m

Duesseldorf Intl

Thu 4/16

9:20 am-8:36 pm

2 stops20h 16m

$659

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 3/24

1:50 pm-1:35 pm

2 stops15h 45m

Duesseldorf Intl

Wed 4/1

7:30 am-5:47 pm

2 stops19h 17m

$674

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 3/24

1:50 pm-1:35 pm

2 stops15h 45m

Duesseldorf Intl

Thu 4/2

9:30 am-5:47 pm

2 stops17h 17m

$674

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 3/22

5:15 am-4:40 pm

2 stops27h 25m

Duesseldorf Intl

Sun 3/29

3:30 pm-10:26 pm

2 stops39h 56m

$729

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 2/18

1:45 pm-1:35 pm

2 stops14h 50m

Duesseldorf Intl

Wed 3/4

10:30 am-8:50 pm

2 stops19h 20m

$730

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 2/16

1:45 pm-5:55 pm

2 stops19h 10m

Duesseldorf Intl

Wed 3/4

10:30 am-8:50 pm

2 stops19h 20m

$730

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 5/9

6:59 pm-12:40 pm

2 stops32h 41m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

Showing 1-10 of 21 results
1
2
3
  • Most accurate provider: When it comes to deals on Ontario-Duesseldorf Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Duesseldorf Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Duesseldorf Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Duesseldorf Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Duesseldorf Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, November is the cheapest month in which you can book a flight from Ontario to Duesseldorf Intl Airport (average of $530). Flying from Ontario to Duesseldorf Intl Airport in June is currently the most expensive (average of $870). 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 16h 35m. 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, November is the cheapest month in which you can book a flight from Ontario to Duesseldorf Intl Airport (average of $530). Flying from Ontario to Duesseldorf Intl Airport in June is currently the most expensive (average of $870). 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
Wuppertal
Bochum
Mönchengladbach
Gelsenkirchen
Duisburg

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.