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Bonn

$417+ 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 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap 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 January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/27. 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.
Wed 5/67:00 am
ONT
-
DUS
2 stops16h 35m
United Airlines
Wed 5/133:20 pm
DUS
-
ONT
2 stops16h 39m
United Airlines
Deal found 1/27$609
This Trip.com deal was found by Cheapflights users on 1/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/3110:30 pm
ONT
-
DUS
2 stops24h 10m
KLM
Mon 2/166:40 pm
DUS
-
ONT
2 stops30h 22m
KLM
Deal found 1/27$749
This United Airlines deal was found by Cheapflights users on 1/27. 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 2/121:50 pm
ONT
-
DUS
2 stops19h 15m
United Airlines
Thu 2/1910:50 am
DUS
-
ONT
2 stops20h 09m
United Airlines
Deal found 1/27$780
This oojo deal was found by Cheapflights users on 1/28. 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.
Thu 2/122:39 pm
ONT
-
DUS
2 stops20h 01m
British Airways
Mon 2/237:05 am
DUS
-
ONT
2 stops24h 44m
British Airways
Deal found 1/28$783
This United Airlines deal was found by Cheapflights users on 1/28. 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 2/196:00 am
ONT
-
DUS
2 stops27h 05m
United Airlines
Mon 2/232:30 pm
DUS
-
ONT
2 stops39h 20m
United Airlines
Deal found 1/28$792
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/216:37 pm
ONT
-
DUS
2 stops34h 58m
United Airlines
Thu 3/266:10 am
DUS
-
ONT
2 stops24h 26m
United Airlines
Deal found 1/27$800
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/136:37 pm
ONT
-
DUS
2 stops58h 58m
United Airlines
Fri 3/208:30 am
DUS
-
ONT
2 stops35h 48m
United Airlines
Deal found 1/27$820
This oojo deal was found by Cheapflights users on 1/28. 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 2/104:45 pm
ONT
-
DUS
2 stops16h 20m
British Airways
Wed 2/1810:05 am
DUS
-
ONT
2 stops21h 14m
British Airways
Deal found 1/28$832
This oojo deal was found by Cheapflights users on 1/28. 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.
Thu 2/53:09 pm
ONT
-
DUS
2 stops19h 31m
British Airways
Tue 2/1012:30 pm
DUS
-
ONT
2 stops19h 18m
British Airways
Deal found 1/28$882

Find flight deals from Ontario to Bonn

Keep the following information in mind while searching for Ontario to Bonn flight deals. Data was last updated January 29, 2026.

Round-trip from

$609
(United Airlines)

One-way from

$417
(Iberia)

Popular in

June

Cheapest in

November

Average price

$724
From Ontario to Bonn
Search Deals
One-way flight from Ontario to Bonn
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($219 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 29, 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

Wed 5/6

7:00 am-8:35 am

2 stops16h 35m

Duesseldorf Intl

Wed 5/13

3:20 pm-10:59 pm

2 stops16h 39m

$609

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 2/12

1:50 pm-6:05 pm

2 stops19h 15m

Duesseldorf Intl

Fri 2/20

10:35 am-8:07 pm

2 stops18h 32m

$780

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 2/19

6:00 am-6:05 pm

2 stops27h 05m

Duesseldorf Intl

Mon 2/23

2:30 pm-8:50 pm

2 stops39h 20m

$792

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 3/21

6:37 pm-1:35 pm

2 stops34h 58m

Duesseldorf Intl

Thu 3/26

6:10 am-10:36 pm

2 stops24h 26m

$800

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 3/13

6:37 pm-1:35 pm

2 stops58h 58m

Duesseldorf Intl

Fri 3/20

8:30 am-12:18 pm

2 stops35h 48m

$820

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 2/10

4:45 pm-6:05 pm

2 stops16h 20m

Duesseldorf Intl

Wed 2/18

10:05 am-10:19 pm

2 stops21h 14m

$832

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 2/10

3:09 pm-7:45 pm

2 stops19h 36m

Duesseldorf Intl

Sat 2/28

2:30 pm-10:07 pm

2 stops40h 37m

$882

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 2/10

4:45 pm-6:05 pm

2 stops16h 20m

Duesseldorf Intl

Mon 2/16

8:40 pm-7:45 pm

2 stops32h 05m

$883

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 3/27

1:50 pm-2:40 pm

2 stops16h 50m

Duesseldorf Intl

Wed 4/1

6:10 am-10:26 pm

2 stops25h 16m

$991

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 3/24

10:56 am-6:05 pm

2 stops23h 09m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 17 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?

    United Airlines can get you from Ontario to Bonn in just under 16h 35m. Your travel time can differ by up to . There are 5641 mi between Ontario and Bonn.

  • 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

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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$700Average$875FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$934FlexibilityNo cancel feeOn-time70%

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