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Bonn

$402+ Cheap flights from Ontario (ONT) to Bonn, Germany

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
feb. 19 — feb. 261
jue. 2/19
jue. 2/26
1 adult, Economy
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Cheap flight deals from Ontario to Bonn

Keep the following information in mind while searching for Ontario to Bonn flight deals. Data was last updated enero 20, 2026.

Round-trip from

$537
(KAYAK)

One-way from

$402
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$671
From Ontario to Bonn
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One-way flight from Ontario to Bonn
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Highest demand for flights based on searches. 21% potential increase in price ($228 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Ontario to Bonn

Cheapest flights from Ontario to Bonn
Explore the most affordable flight options available from Ontario to Bonn. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 20, 2026.

This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/245:02 pm
ONT
-
DUS
2 stops17h 03m
British Airways
mié. 4/110:40 am
DUS
-
ONT
2 stops20h 39m
British Airways
Deal found 1/19$537
This oojo deal was found by Cheapflights users on 1/19. 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.
mié. 4/154:52 pm
ONT
-
DUS
2 stops19h 08m
British Airways
mié. 4/2210:40 am
DUS
-
ONT
2 stops20h 55m
British Airways
Deal found 1/19$593
This United Airlines deal was found by Cheapflights users on 1/19. 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. 4/1911:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
mié. 5/610:40 am
DUS
-
ONT
2 stops20h 18m
United Airlines
Deal found 1/19$594
This British Airways deal was found by Cheapflights users on 1/18. 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.
jue. 2/196:00 am
ONT
-
DUS
2 stops28h 40m
British Airways
lun. 2/233:55 pm
DUS
-
ONT
2 stops39h 54m
British Airways
Deal found 1/18$597
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/245:02 pm
ONT
-
DUS
2 stops17h 03m
British Airways
jue. 4/210:30 am
DUS
-
ONT
2 stops20h 37m
British Airways
Deal found 1/19$600
This United Airlines deal was found by Cheapflights users on 1/19. 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. 2/261:40 pm
ONT
-
DUS
2 stops19h 25m
United Airlines
lun. 3/22:30 pm
DUS
-
ONT
2 stops17h 27m
United Airlines
Deal found 1/19$606
This KAYAK deal was found by Cheapflights users on 1/19. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/255:02 pm
ONT
-
DUS
2 stops18h 43m
British Airways
mié. 4/110:40 am
DUS
-
ONT
2 stops20h 39m
British Airways
Deal found 1/19$657
This oojo deal was found by Cheapflights users on 1/19. 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.
jue. 2/1210:56 am
ONT
-
DUS
2 stops20h 19m
British Airways
lun. 2/2310:20 am
DUS
-
ONT
2 stops20h 47m
British Airways
Deal found 1/19$693
This oojo deal was found by Cheapflights users on 1/18. 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.
mar. 3/173:19 pm
ONT
-
DUS
2 stops18h 46m
British Airways
mar. 4/77:10 am
DUS
-
ONT
2 stops42h 12m
British Airways
Deal found 1/18$705
This oojo deal was found by Cheapflights users on 1/18. 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.
lun. 1/2611:59 pm
ONT
-
DUS
2 stops33h 06m
British Airways
mié. 2/1110:05 am
DUS
-
ONT
2 stops21h 43m
British Airways
Deal found 1/18$714
This United Airlines deal was found by Cheapflights users on 1/19. 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. 4/1311:05 am
ONT
-
DUS
2 stops16h 35m
United Airlines
jue. 4/1610:30 am
DUS
-
ONT
2 stops20h 20m
United Airlines
Deal found 1/19$715
This United Airlines deal was found by Cheapflights users on 1/18. 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. 5/710:37 am
ONT
-
DUS
2 stops17h 03m
United Airlines
jue. 5/286:00 am
DUS
-
ONT
2 stops20h 47m
United Airlines
Deal found 1/18$964

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Bonn 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 enero 20, 2026.
Use the filters below to find and compare flights from Ontario to Bonn that are best for you.

Fly from

Ontario

Fly to

Bonn

Route

Depart

Return

Price

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

mar. 3/24

5:02 pm-6:05 pm

2 stops17h 03m

Duesseldorf Intl

mié. 4/1

10:40 am-10:19 pm

2 stops20h 39m

$537

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

dom. 4/19

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

mié. 5/6

10:40 am-9:58 pm

2 stops20h 18m

$594

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

jue. 2/19

10:56 am-7:40 pm

2 stops23h 44m

Duesseldorf Intl

lun. 2/23

3:55 pm-10:49 pm

2 stops39h 54m

$597

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

mar. 3/24

5:02 pm-6:05 pm

2 stops17h 03m

Duesseldorf Intl

jue. 4/2

10:30 am-10:07 pm

2 stops20h 37m

$600

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

jue. 2/26

1:40 pm-6:05 pm

2 stops19h 25m

Duesseldorf Intl

lun. 3/2

2:30 pm-10:57 pm

2 stops17h 27m

$606

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

jue. 2/12

10:56 am-4:15 pm

2 stops20h 19m

Duesseldorf Intl

lun. 2/23

10:20 am-10:07 pm

2 stops20h 47m

$693

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

mar. 3/17

3:19 pm-6:05 pm

2 stops18h 46m

Duesseldorf Intl

mar. 4/7

7:10 am-4:22 pm

2 stops42h 12m

$705

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

dom. 4/26

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

mié. 4/29

10:40 am-10:45 pm

2 stops21h 05m

$714

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

lun. 4/13

11:05 am-12:40 pm

2 stops16h 35m

Duesseldorf Intl

jue. 4/16

10:30 am-9:50 pm

2 stops20h 20m

$715

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

jue. 5/7

10:37 am-12:40 pm

2 stops17h 03m

Duesseldorf Intl

jue. 5/28

6:00 am-5:47 pm

2 stops20h 47m

$964

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 14 results
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Best time to book a flight from Ontario to Bonn

Have a flexible travel schedule? Discover the best time to fly to Bonn from Ontario 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 Ontario to Bonn

What is the cheapest month to book a flight from Ontario to Bonn?

Currently, November is the cheapest month in which you can book a flight from Ontario to Bonn (average of $530). Flying from Ontario to Bonn in June is currently the most expensive (average of $743). 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 Ontario to Bonn. 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 from for flights from Ontario to Bonn?

    If you book a flight to Bonn from Ontario, you will be flying from Ontario, which is the city’s only airport. Ontario (ONT) is located 3.1 mi from the center of Ontario. There are 0 flights from Ontario to Bonn per day from 2 different airlines.

  • How long is the flight from Ontario to Bonn?

    British Airways and United Airlines can get you from Ontario to Bonn in just under 16h 35m. Your travel time can differ by up to 28m. There are 5641 mi between Ontario and Bonn. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

  • How can I find direct flights from Ontario to Bonn?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Bonn 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 Ontario to Bonn?

    Currently, November is the cheapest month in which you can book a flight from Ontario to Bonn (average of $530). Flying from Ontario to Bonn in June is currently the most expensive (average of $743). 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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Alternative routes for Ontario to Bonn

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from Ontario to Bonn

Discover the top 2 airlines that operate flights from Ontario to Bonn. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated enero 20, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$700Average$781FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$853FlexibilityNo cancel feeOn-time70%

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