HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$448+ Cheap flights from Duesseldorf Intl (DUS) to Ontario (ONT)

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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
DUS — ONT
Jan 8 — Jan 151
Thu 1/8
Thu 1/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Duesseldorf Intl to Ontario 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 Duesseldorf Intl to Ontario

Cheapest flights from Duesseldorf Intl to Ontario
Explore the most affordable flight options available from Duesseldorf Intl to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 9, 2025.

This Delta deal was found by Cheapflights users on 12/9. 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.
Thu 12/256:15 amDUS - ONT
2 stops39h 14mDelta
Mon 12/2910:29 pmONT - DUS
2 stops34h 26mDelta
Deal found 12/9$839
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/246:15 amDUS - ONT
2 stops39h 23mUnited Airlines
Tue 1/61:53 pmONT - DUS
2 stops38h 42mUnited Airlines
Deal found 12/9$848
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/246:15 amDUS - ONT
2 stops39h 23mUnited Airlines
Thu 1/18:11 amONT - DUS
2 stops28h 44mUnited Airlines
Deal found 12/9$858
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/257:00 amDUS - ONT
2 stops36h 01mUnited Airlines
Thu 1/18:11 amONT - DUS
2 stops28h 44mUnited Airlines
Deal found 12/9$877
This oojo deal was found by Cheapflights users on 12/8. 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 12/236:15 amDUS - ONT
2 stops21h 01mBritish Airways
Tue 12/3012:45 pmONT - DUS
2 stops20h 20mBritish Airways
Deal found 12/8$913
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/166:20 amDUS - ONT
2 stops20h 17mUnited Airlines
Thu 1/81:24 pmONT - DUS
2 stops19h 41mUnited Airlines
Deal found 12/9$953
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/246:15 amDUS - ONT
2 stops39h 23mUnited Airlines
Mon 1/56:39 pmONT - DUS
2 stops36h 41mUnited Airlines
Deal found 12/9$998
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/232:35 pmDUS - ONT
2 stops60h 16mUnited Airlines
Thu 1/18:11 amONT - DUS
2 stops28h 44mUnited Airlines
Deal found 12/9$1,001
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/257:00 amDUS - ONT
2 stops24h 25mUnited Airlines
Tue 1/61:53 pmONT - DUS
2 stops17h 27mUnited Airlines
Deal found 12/9$1,017
This United Airlines deal was found by Cheapflights users on 12/8. 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 12/156:15 amDUS - ONT
2 stops20h 22mUnited Airlines
Wed 1/71:24 pmONT - DUS
2 stops16h 41mUnited Airlines
Deal found 12/8$1,103
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/309:25 amDUS - ONT
2 stops20h 42mUnited Airlines
Wed 5/1311:05 amONT - DUS
2 stops16h 35mUnited Airlines
Deal found 12/9$1,292
This American Airlines deal was found by Cheapflights users on 12/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/228:40 pmDUS - ONT
2 stops30h 36mMultiple Airlines
Fri 12/2610:50 amONT - DUS
2 stops24h 30mMultiple Airlines
Deal found 12/7$1,385

Find flight deals from Duesseldorf Intl to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Duesseldorf Intl (DUS) to Ontario (ONT). 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 December 9, 2025.

Round-trip from

$650
(American Airlines)

One-way from

$448
(British Airways)

Popular in

July

Cheapest in

September

Average price

$837
From Duesseldorf Intl to Ontario
Search Deals
One-way flight from Duesseldorf Intl to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Duesseldorf Intl to Ontario 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 December 9, 2025.
Use the filters below to find and compare flights from Duesseldorf Intl Airport to Ontario that are best for you.

Fly from

Duesseldorf Intl

Fly to

Ontario

Route

Depart

Return

Price

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 1/22

7:05 am-5:22 pm

2 stops19h 17m

Ontario

Mon 1/26

6:00 am-3:10 pm

2 stops24h 10m

$650

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 4/3

5:45 pm-6:42 pm

2 stops33h 57m

Ontario

Sun 4/12

3:05 pm-9:05 pm

2 stops21h 00m

$673

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 5/1

8:15 am-10:40 pm

2 stops23h 25m

Ontario

Sun 5/17

7:00 am-1:55 pm

2 stops21h 55m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 5/1

8:15 am-5:16 pm

2 stops18h 01m

Ontario

Mon 5/18

1:00 pm-1:55 pm

2 stops15h 55m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 4/30

6:20 am-5:16 pm

2 stops19h 56m

Ontario

Mon 5/18

11:55 am-5:40 pm

2 stops20h 45m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 4/27

12:25 pm-10:40 pm

2 stops19h 15m

Ontario

Mon 5/18

9:55 am-5:40 pm

2 stops22h 45m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Sat 5/2

8:15 am-4:14 pm

2 stops16h 59m

Ontario

Mon 5/18

1:00 pm-1:55 pm

2 stops15h 55m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 4/27

12:25 pm-10:40 pm

2 stops19h 15m

Ontario

Sun 5/17

7:00 am-1:55 pm

2 stops21h 55m

$696

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 1/15

10:50 am-10:53 pm

2 stops21h 03m

Ontario

Thu 1/29

1:53 pm-6:05 pm

2 stops19h 12m

$698

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Sat 5/2

8:15 am-4:14 pm

2 stops16h 59m

Ontario

Thu 5/21

7:00 am-11:50 am

2 stops19h 50m

$773

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/8

Showing 1-10 of 24 results
1
2
3

Best time to book a flight from Duesseldorf Intl to Ontario

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

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

Currently, September is the cheapest month in which you can book a flight from Duesseldorf Intl Airport to Ontario (average of $506). Flying from Duesseldorf Intl Airport to Ontario in July is currently the most expensive (average of $667). 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 Duesseldorf Intl to Ontario. 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 into for flights to Ontario from Duesseldorf Intl?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Duesseldorf Intl to Ontario. 0 airlines have flights to Ontario from Duesseldorf Intl on a regular basis. Booking flights from Duesseldorf Intl to Ontario should not be difficult; the airport handles an average of 0 inbound flights from Duesseldorf Intl per day.

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

    There are many flights that can get you from Duesseldorf Intl Airport to Ontario in 19h 17m. Fly via American Airlines or Delta to get the fastest option. There are 5641 mi between Duesseldorf Intl Airport and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Duesseldorf Intl Airport to Ontario (average of $506). Flying from Duesseldorf Intl Airport to Ontario in July is currently the most expensive (average of $667). 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.

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.