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$577+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
DUS — ONT
Feb 2 — Feb 91
Mon 2/2
Mon 2/9
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 January 3, 2026.

This Billigflug deal was found by Cheapflights users on 1/2. 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 Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/177:00 amDUS - ONT
2 stops20h 45mMultiple Airlines
Wed 1/2110:58 amONT - DUS
2 stops26h 22mMultiple Airlines
Deal found 1/2$589
This United Airlines deal was found by Cheapflights users on 1/2. 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.
Thu 3/196:10 amDUS - ONT
2 stops24h 15mUnited Airlines
Thu 4/25:10 amONT - DUS
2 stops22h 30mUnited Airlines
Deal found 1/2$617
This American Airlines deal was found by Cheapflights users on 1/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:05 amDUS - ONT
2 stops46h 19mAmerican Airlines
Wed 4/111:58 pmONT - DUS
2 stops55h 02mAmerican Airlines
Deal found 1/2$618
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Thu 2/510:50 amDUS - ONT
2 stops20h 08mUnited Airlines
Fri 2/209:08 pmONT - DUS
2 stops35h 47mUnited Airlines
Deal found 1/3$620
This British Airways deal was found by Cheapflights users on 1/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/187:05 amDUS - ONT
2 stops24h 54mBritish Airways
Tue 4/74:52 pmONT - DUS
2 stops31h 38mBritish Airways
Deal found 1/2$621
This United Airlines deal was found by Cheapflights users on 1/2. 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.
Fri 3/2012:55 pmDUS - ONT
2 stops31h 23mUnited Airlines
Mon 4/66:00 amONT - DUS
2 stops21h 40mUnited Airlines
Deal found 1/2$629
This Kissandfly.com deal was found by Cheapflights users on 1/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/18:50 amDUS - ONT
2 stops34h 18mMultiple Airlines
Sun 2/87:30 pmONT - DUS
2 stops41h 10mMultiple Airlines
Deal found 1/3$653
This Flysmarter deal was found by Cheapflights users on 1/2. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/177:00 amDUS - ONT
2 stops24h 48mBritish Airways
Wed 1/2112:57 pmONT - DUS
3 stops24h 23mBritish Airways
Deal found 1/2$654
This American Airlines deal was found by Cheapflights users on 1/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:35 amDUS - ONT
2 stops42h 49mAmerican Airlines
Sun 4/511:58 pmONT - DUS
2 stops36h 07mAmerican Airlines
Deal found 1/2$672
This British Airways deal was found by Cheapflights users on 1/2. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/259:05 pmDUS - ONT
2 stops35h 41mBritish Airways
Sat 5/231:10 pmONT - DUS
2 stops35h 25mBritish Airways
Deal found 1/2$675
This American Airlines deal was found by Cheapflights users on 1/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:35 amDUS - ONT
2 stops42h 49mAmerican Airlines
Tue 4/72:08 pmONT - DUS
2 stops21h 57mAmerican Airlines
Deal found 1/2$695
This United Airlines deal was found by Cheapflights users on 1/3. 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.
Sat 8/291:30 pmDUS - ONT
2 stops18h 36mUnited Airlines
Sat 9/191:00 pmONT - DUS
2 stops16h 25mUnited Airlines
Deal found 1/3$715

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 January 3, 2026.

Round-trip from

$589
(Billigflug)

One-way from

$577
(KAYAK)

Popular in

July

Cheapest in

September

Average price

$716
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 ($84 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 January 2026
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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 January 3, 2026.
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

Tue 3/24

6:20 am-10:25 pm

2 stops24h 05m

Ontario

Mon 4/6

6:00 am-12:40 pm

2 stops21h 40m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 2/6

7:05 am-10:48 pm

2 stops24h 43m

Ontario

Sun 2/22

2:39 pm-10:00 pm

2 stops22h 21m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 3/19

6:10 am-10:25 pm

2 stops24h 15m

Ontario

Thu 4/2

5:10 am-12:40 pm

2 stops22h 30m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Tue 2/10

6:15 am-6:45 pm

2 stops21h 30m

Ontario

Sun 2/22

7:00 am-10:00 pm

2 stops30h 00m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Sun 2/8

8:50 am-10:08 am

2 stops34h 18m

Ontario

Tue 2/24

2:39 pm-7:45 pm

2 stops20h 06m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 3/19

8:30 am-10:57 pm

2 stops22h 27m

Ontario

Sat 4/4

6:49 pm-12:40 pm

2 stops32h 51m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 2/5

7:05 am-10:13 pm

2 stops24h 08m

Ontario

Thu 2/19

2:39 pm-10:25 pm

2 stops22h 46m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Mon 3/23

10:40 am-10:25 pm

2 stops43h 45m

Ontario

Mon 4/6

6:00 am-12:40 pm

2 stops21h 40m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Tue 3/24

6:20 am-10:25 pm

2 stops24h 05m

Ontario

Thu 4/2

5:10 am-12:40 pm

2 stops22h 30m

$617

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Tue 3/24

6:20 am-10:25 pm

2 stops24h 05m

Ontario

Fri 4/3

1:27 pm-5:40 pm

2 stops43h 13m

$617

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/2

Showing 1-10 of 22 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 $673). 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 21h 30m. Fly via United Airlines or American 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 $673). 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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