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$548+ Cheap flights from Duesseldorf Intl (DUS) to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
DUS — ONT
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$548
(AirNGo)

Popular in

December

Cheapest in

March

Average price

$778
From Duesseldorf Intl to Ontario
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This AirNGo deal was found by Cheapflights users on 8/14. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/610:45 amDUS - ONT
2 stops19h 39mUnited Airlines
Sun 10/195:05 amONT - DUS
2 stops24h 15mUnited Airlines
Deal found 8/14$548
This United Airlines deal was found by Cheapflights users on 8/14. 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 11/1310:50 amDUS - ONT
2 stops20h 55mUnited Airlines
Fri 12/51:35 pmONT - DUS
2 stops19h 30mUnited Airlines
Deal found 8/14$567
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 11/147:05 amDUS - ONT
2 stops20h 16mAmerican Airlines
Mon 11/1712:53 pmONT - DUS
2 stops17h 17mAmerican Airlines
Deal found 8/13$585
This American Airlines deal was found by Cheapflights users on 8/14. 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 11/116:15 amDUS - ONT
2 stops21h 06mAmerican Airlines
Wed 12/310:57 amONT - DUS
2 stops16h 58mAmerican Airlines
Deal found 8/14$588
This Delta deal was found by Cheapflights users on 8/13. 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.
Sat 11/156:15 amDUS - ONT
2 stops18h 59mDelta
Tue 11/1812:00 pmONT - DUS
2 stops16h 45mDelta
Deal found 8/13$623
This Delta deal was found by Cheapflights users on 8/14. 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 10/68:15 amDUS - ONT
2 stops17h 55mDelta
Sun 10/194:35 pmONT - DUS
2 stops16h 05mDelta
Deal found 8/14$632
This United Airlines deal was found by Cheapflights users on 8/14. 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 11/228:15 amDUS - ONT
2 stops23h 30mUnited Airlines
Thu 12/111:35 pmONT - DUS
2 stops19h 30mUnited Airlines
Deal found 8/14$641
This American Airlines deal was found by Cheapflights users on 8/14. 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 11/2310:35 amDUS - ONT
2 stops22h 22mAmerican Airlines
Sat 12/1312:53 pmONT - DUS
2 stops16h 57mAmerican Airlines
Deal found 8/14$646
This United Airlines deal was found by Cheapflights users on 8/14. 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 11/2410:40 amDUS - ONT
2 stops19h 57mUnited Airlines
Sat 12/131:34 pmONT - DUS
2 stops19h 21mUnited Airlines
Deal found 8/14$736
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Fri 11/147:05 amDUS - ONT
2 stops20h 16mAmerican Airlines
Sun 11/1612:53 pmONT - DUS
2 stops17h 17mAmerican Airlines
Deal found 8/13$738
This Iberia deal was found by Cheapflights users on 8/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/227:40 pmDUS - ONT
2 stops25h 13mIberia
Wed 12/1010:57 amONT - DUS
2 stops22h 58mIberia
Deal found 8/14$739
This oojo deal was found by Cheapflights users on 8/13. 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 10/66:20 pmDUS - ONT
2 stops31h 08mBritish Airways
Sun 10/198:15 amONT - DUS
2 stops17h 20mBritish Airways
Deal found 8/13$750

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 August 14, 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

Mon 10/6

10:45 am-9:24 pm

2 stops19h 39m

Ontario

Sun 10/19

5:05 am-2:20 pm

2 stops24h 15m

$548

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 11/13

10:50 am-10:45 pm

2 stops20h 55m

Ontario

Fri 12/5

1:35 pm-6:05 pm

2 stops19h 30m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 11/28

10:35 am-7:41 pm

2 stops18h 06m

Ontario

Sat 12/6

1:34 pm-1:50 pm

2 stops15h 16m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Wed 11/19

10:30 am-9:37 pm

2 stops20h 07m

Ontario

Wed 12/10

1:35 pm-6:00 pm

2 stops19h 25m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Wed 11/12

8:30 am-9:37 pm

2 stops22h 07m

Ontario

Thu 12/4

1:35 pm-6:05 pm

2 stops19h 30m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 11/14

10:35 am-9:37 pm

2 stops20h 02m

Ontario

Fri 12/5

1:35 pm-6:05 pm

2 stops19h 30m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Thu 11/13

10:50 am-10:45 pm

2 stops20h 55m

Ontario

Thu 12/4

1:34 pm-1:35 pm

2 stops15h 01m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Tue 11/18

10:50 am-9:37 pm

2 stops19h 47m

Ontario

Thu 12/4

1:35 pm-6:05 pm

2 stops19h 30m

$567

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 11/14

7:05 am-6:21 pm

2 stops20h 16m

Ontario

Mon 11/17

12:53 pm-3:10 pm

2 stops17h 17m

$585

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

Fri 11/14

7:05 am-6:21 pm

2 stops20h 16m

Ontario

Tue 11/18

12:53 pm-3:10 pm

2 stops17h 17m

$585

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 15 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, August is the cheapest month in which you can book a flight from Duesseldorf Intl Airport to Ontario (average of $246). Flying from Duesseldorf Intl Airport to Ontario in March is currently the most expensive (average of $328). 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.

  • 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, August is the cheapest month in which you can book a flight from Duesseldorf Intl Airport to Ontario (average of $246). Flying from Duesseldorf Intl Airport to Ontario in March is currently the most expensive (average of $328). 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

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