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$431+ 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 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
DUS — ONT
dic. 25 — ene. 11
jue. 12/25
jue. 1/1
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 noviembre 25, 2025.

Round-trip from

$638
(Delta)

One-way from

$431
(British Airways)

Popular in

July

Cheapest in

September

Average price

$671
From Duesseldorf Intl to Ontario
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One-way flight from Duesseldorf Intl to Ontario
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Highest demand for flights based on searches. 9% potential increase in price ($78 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 November 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 noviembre 25, 2025.

This United Airlines deal was found by Cheapflights users on 11/24. 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.
lun. 12/152:30 pmDUS - ONT
2 stops36h 07mUnited Airlines
mié. 1/215:05 amONT - DUS
2 stops23h 30mUnited Airlines
Deal found 11/24$666
This United Airlines deal was found by Cheapflights users on 11/24. 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.
dom. 12/142:40 pmDUS - ONT
2 stops35h 57mUnited Airlines
dom. 1/186:00 amONT - DUS
2 stops27h 00mUnited Airlines
Deal found 11/24$685
This Billigflug deal was found by Cheapflights users on 11/24. 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.
mié. 12/176:15 amDUS - ONT
2 stops18h 54mMultiple Airlines
mié. 1/2110:30 pmONT - DUS
2 stops30h 15mMultiple Airlines
Deal found 11/24$689
This Flysmarter deal was found by Cheapflights users on 11/24. 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.
mié. 12/107:05 amDUS - ONT
2 stops20h 12mBritish Airways
dom. 12/1410:34 pmONT - DUS
2 stops27h 46mBritish Airways
Deal found 11/24$712
This Delta deal was found by Cheapflights users on 11/24. 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.
mar. 12/166:15 amDUS - ONT
2 stops25h 49mDelta
mar. 1/206:00 amONT - DUS
2 stops22h 45mDelta
Deal found 11/24$714
This Air France deal was found by Cheapflights users on 11/24. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/1611:15 amDUS - ONT
2 stops20h 49mAir France
jue. 1/226:00 amONT - DUS
2 stops22h 45mAir France
Deal found 11/24$719
This United Airlines deal was found by Cheapflights users on 11/24. 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.
mar. 12/166:20 amDUS - ONT
2 stops25h 29mUnited Airlines
lun. 1/195:05 amONT - DUS
2 stops23h 40mUnited Airlines
Deal found 11/24$724
This United Airlines deal was found by Cheapflights users on 11/24. 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.
mié. 12/176:30 amDUS - ONT
2 stops20h 05mUnited Airlines
mié. 1/216:00 amONT - DUS
2 stops46h 50mUnited Airlines
Deal found 11/24$783
This United Airlines deal was found by Cheapflights users on 11/24. 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.
mié. 12/176:30 amDUS - ONT
2 stops20h 05mUnited Airlines
dom. 1/185:05 amONT - DUS
2 stops23h 30mUnited Airlines
Deal found 11/24$789
This United Airlines deal was found by Cheapflights users on 11/24. 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.
mié. 12/242:30 pmDUS - ONT
2 stops39h 37mUnited Airlines
mié. 12/315:05 amONT - DUS
2 stops23h 30mUnited Airlines
Deal found 11/24$808
This United Airlines deal was found by Cheapflights users on 11/24. 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.
jue. 12/187:00 amDUS - ONT
2 stops19h 43mUnited Airlines
vie. 1/231:53 pmONT - DUS
2 stops19h 12mUnited Airlines
Deal found 11/24$844
This United Airlines deal was found by Cheapflights users on 11/24. 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.
jue. 12/2510:50 amDUS - ONT
2 stops19h 17mUnited Airlines
mié. 12/315:05 amONT - DUS
2 stops23h 30mUnited Airlines
Deal found 11/24$876

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 noviembre 25, 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

lun. 1/19

6:15 am-4:15 pm

2 stops19h 00m

Ontario

mar. 2/3

12:41 pm-5:40 pm

2 stops19h 59m

$638

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

jue. 4/23

8:15 am-5:16 pm

2 stops18h 01m

Ontario

mié. 4/29

5:05 pm-5:40 pm

2 stops15h 35m

$643

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mié. 4/22

6:20 am-4:14 pm

2 stops18h 54m

Ontario

mar. 4/28

1:00 pm-1:55 pm

2 stops15h 55m

$643

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mar. 4/21

7:10 am-5:46 pm

2 stops19h 36m

Ontario

dom. 4/26

11:59 pm-6:00 pm

2 stops33h 01m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mié. 2/25

7:05 am-7:57 pm

2 stops21h 52m

Ontario

sáb. 3/21

5:02 pm-7:40 pm

2 stops18h 38m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mié. 4/22

7:15 am-5:46 pm

2 stops19h 31m

Ontario

jue. 4/30

1:33 pm-9:05 pm

2 stops22h 32m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

dom. 4/26

2:10 pm-5:46 pm

2 stops36h 36m

Ontario

sáb. 5/2

5:02 pm-9:55 am

2 stops55h 53m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

lun. 4/20

6:20 pm-5:45 pm

2 stops32h 25m

Ontario

dom. 4/26

11:59 pm-6:00 pm

2 stops33h 01m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mié. 4/22

7:15 am-5:46 pm

2 stops19h 31m

Ontario

vie. 5/1

1:33 pm-9:05 pm

2 stops22h 32m

$645

DüsseldorfOntario

DUS - ONT

DUSONT

Duesseldorf Intl

mar. 4/21

7:10 am-5:45 pm

2 stops19h 35m

Ontario

mié. 4/29

3:05 pm-9:35 am

2 stops33h 30m

$645

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/25

Showing 1-10 of 24 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 $651). 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. Fly via Delta or British Airways 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 $651). 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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