HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Düsseldorf

$419+ Cheap flights from Ontario (ONT) to Düsseldorf

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — DUS
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Düsseldorf 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 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 January 28, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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 5/67:00 am
ONT
-
DUS
2 stops17h 35m
United Airlines
Wed 5/133:20 pm
DUS
-
ONT
2 stops16h 39m
United Airlines
Deal found 1/26$607
This Trip.com deal was found by Cheapflights users on 1/27. 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 1/3110:30 pm
ONT
-
DUS
2 stops24h 10m
KLM
Mon 2/166:40 pm
DUS
-
ONT
2 stops30h 22m
KLM
Deal found 1/27$749
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/72:30 pm
DUS
-
ONT
2 stops17h 27m
United Airlines
Deal found 1/26$774
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/121:50 pm
ONT
-
DUS
2 stops19h 15m
United Airlines
Fri 2/2010:35 am
DUS
-
ONT
2 stops18h 32m
United Airlines
Deal found 1/27$780
This United Airlines deal was found by Cheapflights users on 1/25. 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 1/25$789
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/216:37 pm
ONT
-
DUS
2 stops34h 58m
United Airlines
Thu 3/266:10 am
DUS
-
ONT
2 stops24h 26m
United Airlines
Deal found 1/27$800
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/136:37 pm
ONT
-
DUS
2 stops58h 58m
United Airlines
Fri 3/208:30 am
DUS
-
ONT
2 stops35h 48m
United Airlines
Deal found 1/27$820
This oojo deal was found by Cheapflights users on 1/27. 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 3/175:02 pm
ONT
-
DUS
2 stops17h 03m
British Airways
Sun 3/228:30 pm
DUS
-
ONT
2 stops32h 54m
British Airways
Deal found 1/27$883

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 January 28, 2026.

Round-trip from

$607
(United Airlines)

One-way from

$419
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$724
From Ontario to Düsseldorf
Search Deals
One-way flight from Ontario to Düsseldorf
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 28, 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

Wed 5/6

7:00 am-9:35 am

2 stops17h 35m

Duesseldorf Intl

Wed 5/13

3:20 pm-10:59 pm

2 stops16h 39m

$607

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 2/21

1:45 pm-1:35 pm

2 stops38h 50m

Duesseldorf Intl

Sat 3/7

2:30 pm-10:57 pm

2 stops17h 27m

$774

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 2/12

1:50 pm-6:05 pm

2 stops19h 15m

Duesseldorf Intl

Fri 2/20

10:35 am-8:07 pm

2 stops18h 32m

$780

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 2/12

1:50 pm-6:05 pm

2 stops19h 15m

Duesseldorf Intl

Thu 2/19

10:50 am-9:59 pm

2 stops20h 09m

$780

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 2/19

1:50 pm-6:05 pm

2 stops19h 15m

Duesseldorf Intl

Mon 2/23

10:40 am-8:50 pm

2 stops43h 10m

$789

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 3/21

6:37 pm-1:35 pm

2 stops34h 58m

Duesseldorf Intl

Thu 3/26

6:10 am-10:36 pm

2 stops24h 26m

$800

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 3/13

6:37 pm-1:35 pm

2 stops58h 58m

Duesseldorf Intl

Fri 3/20

8:30 am-12:18 pm

2 stops35h 48m

$820

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 3/18

2:39 pm-7:45 pm

2 stops21h 06m

Duesseldorf Intl

Sun 4/5

2:10 pm-10:07 pm

2 stops16h 57m

$1,048

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 3/19

5:02 pm-7:40 pm

2 stops18h 38m

Duesseldorf Intl

Mon 4/6

10:40 am-10:07 pm

2 stops20h 27m

$1,148

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 5/2

6:59 pm-12:40 pm

2 stops32h 41m

$419

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 16 results
1
2

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, November is the cheapest month in which you can book a flight from Ontario to Düsseldorf (average of $530). Flying from Ontario to Düsseldorf in June is currently the most expensive (average of $869). 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 17h 35m. United Airlines provides one of the quickest options available for as low as $607. 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, November is the cheapest month in which you can book a flight from Ontario to Düsseldorf (average of $530). Flying from Ontario to Düsseldorf in June is currently the most expensive (average of $869). 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

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.

Alternative routes for Ontario to Düsseldorf

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Frankfurt flights
San Francisco to Frankfurt flights
San Francisco to Munich flights
Los Angeles to Munich flights
Ontario to Frankfurt flights
San Francisco to Berlin flights
Oakland to Frankfurt flights
San Jose to Frankfurt flights
Las Vegas to Frankfurt flights
San Diego to Frankfurt flights
San Diego to Munich flights
Los Angeles to Berlin flights
Santa Ana to Frankfurt flights
Burbank to Frankfurt flights
San Francisco to Frankfurt-Hahn flights
Los Angeles to Duesseldorf Intl flights
Ontario to Munich flights
Santa Ana to Munich flights
San Jose to Munich flights
Long Beach to Frankfurt flights
Oakland to Munich flights
Burbank to Munich flights
Ontario to Berlin flights
Santa Ana to Berlin flights
Los Angeles to Hamburg flights
San Jose to Berlin flights
San Francisco to Duesseldorf Intl flights
Sacramento to Munich flights
Oakland to Berlin flights
Burbank to Berlin flights
Los Angeles to Stuttgart flights
Los Angeles to Frankfurt-Hahn flights
San Diego to Berlin flights
Sacramento to Frankfurt flights
Fresno to Frankfurt flights
Las Vegas to Munich flights
San Francisco to Hamburg flights
Medford to Frankfurt flights
Santa Ana to Duesseldorf Intl flights
Ontario to Duesseldorf Intl flights
San Diego to Duesseldorf Intl flights
Las Vegas to Berlin flights
Santa Ana to Hamburg flights
Los Angeles to Cologne flights
San Francisco to Cologne flights
San Francisco to Stuttgart flights
San Jose to Duesseldorf Intl flights
Reno to Frankfurt flights
Los Angeles to Bremen flights
Los Angeles to Nuremberg flights

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.
Site
Cookie settings©2026 Cheapflights