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$435+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
DUS — ONT
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
1 adult, Economy
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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 4, 2025.

This American Airlines deal was found by Cheapflights users on 12/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:05 amDUS - ONT
2 stops20h 11mAmerican Airlines
Fri 6/125:00 pmONT - DUS
2 stops19h 05mAmerican Airlines
Deal found 12/4$1,260
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:05 amDUS - ONT
2 stops20h 12mBritish Airways
Tue 12/234:44 pmONT - DUS
2 stops18h 01mBritish Airways
Deal found 12/3$1,341
This United Airlines deal was found by Cheapflights users on 12/4. 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.
Mon 12/296:15 amDUS - ONT
2 stops20h 28mUnited Airlines
Sun 1/111:24 pmONT - DUS
2 stops15h 11mUnited Airlines
Deal found 12/4$1,365
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:30 pmDUS - ONT
2 stops18h 58mBritish Airways
Tue 12/234:44 pmONT - DUS
2 stops18h 01mBritish Airways
Deal found 12/3$1,407
This Delta deal was found by Cheapflights users on 12/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:15 amDUS - ONT
2 stops18h 57mDelta
Fri 6/121:00 pmONT - DUS
2 stops15h 55mDelta
Deal found 12/4$1,491
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/2510:50 amDUS - ONT
2 stops19h 17mUnited Airlines
Thu 1/11:40 pmONT - DUS
2 stops14h 55mUnited Airlines
Deal found 12/4$1,504
This American Airlines deal was found by Cheapflights users on 12/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3012:30 pmDUS - ONT
2 stops18h 44mAmerican Airlines
Fri 6/125:00 pmONT - DUS
2 stops19h 05mAmerican Airlines
Deal found 12/4$1,658
This United Airlines deal was found by Cheapflights users on 12/4. 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 12/2111:10 amDUS - ONT
2 stops39h 33mUnited Airlines
Sat 1/310:42 amONT - DUS
2 stops22h 13mUnited Airlines
Deal found 12/4$1,782
This Turkish Airlines deal was found by Cheapflights users on 12/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/187:10 amDUS - ONT
2 stops26h 04mMultiple Airlines
Mon 12/226:00 amONT - DUS
2 stops31h 25mMultiple Airlines
Deal found 12/3$2,050

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 4, 2025.

Round-trip from

$578
(Billigflug)

One-way from

$435
(British Airways)

Popular in

July

Cheapest in

September

Average price

$905
From Duesseldorf Intl to Ontario
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One-way flight from Duesseldorf Intl to Ontario
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($76 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 4, 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

Sat 1/17

10:20 am-10:48 pm

2 stops21h 28m

Ontario

Sat 1/24

12:57 pm-10:20 pm

2 stops24h 23m

$578

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Wed 3/4

7:05 am-6:39 pm

2 stops20h 34m

Ontario

Sun 3/8

10:40 pm-3:10 pm

2 stops32h 30m

$605

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 1/12

8:40 pm-6:45 pm

2 stops31h 05m

Ontario

Sun 1/25

4:45 pm-10:00 pm

2 stops20h 15m

$608

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 1/15

10:50 am-10:53 pm

2 stops21h 03m

Ontario

Thu 1/22

1:53 pm-6:05 pm

2 stops19h 12m

$613

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Wed 2/4

10:30 am-8:58 pm

2 stops19h 28m

Ontario

Wed 2/25

1:45 pm-6:00 pm

2 stops19h 15m

$674

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 4/30

8:15 am-6:15 pm

2 stops19h 00m

Ontario

Wed 5/20

7:00 am-1:55 pm

2 stops21h 55m

$675

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 5/4

6:20 am-6:15 pm

2 stops20h 55m

Ontario

Wed 5/20

7:00 am-1:55 pm

2 stops21h 55m

$675

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Tue 4/28

8:15 am-6:15 pm

2 stops19h 00m

Ontario

Wed 5/20

7:00 am-1:55 pm

2 stops21h 55m

$675

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Sat 5/2

6:20 am-5:16 pm

2 stops19h 56m

Ontario

Wed 5/20

7:00 am-1:55 pm

2 stops21h 55m

$675

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 5/4

12:25 pm-10:40 pm

2 stops19h 15m

Ontario

Mon 5/18

9:55 am-1:55 pm

2 stops19h 00m

$686

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 20 results
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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 $652). 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 20h 34m. Fly via British Airways, American Airlines, or United Airlines 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 $652). 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.

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