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Bonn

$421+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
oct. 16 — oct. 231
jue. 10/16
jue. 10/23
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 septiembre 16, 2025.

Round-trip from

$618
(United Airlines)

One-way from

$421
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$822
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. 20% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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. 11/25:00 amONT - DUS
2 stops27h 00mUnited Airlines
mar. 11/112:40 pmDUS - ONT
2 stops17h 11mUnited Airlines
Deal found 9/15$618
This United Airlines deal was found by Cheapflights users on 9/14. 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.
jue. 12/41:34 pmONT - DUS
2 stops15h 01mUnited Airlines
jue. 1/1510:50 amDUS - ONT
2 stops20h 08mUnited Airlines
Deal found 9/14$668
This United Airlines deal was found by Cheapflights users on 9/15. 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. 10/199:36 amONT - DUS
2 stops18h 04mUnited Airlines
vie. 10/318:30 amDUS - ONT
2 stops46h 01mUnited Airlines
Deal found 9/15$683
This United Airlines deal was found by Cheapflights users on 9/14. 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.
dom. 12/141:34 pmONT - DUS
2 stops18h 06mUnited Airlines
sáb. 1/109:45 amDUS - ONT
2 stops22h 08mUnited Airlines
Deal found 9/14$1,011
This United Airlines deal was found by Cheapflights users on 9/15. 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.
sáb. 11/11:29 pmONT - DUS
2 stops16h 21mUnited Airlines
sáb. 11/152:30 pmDUS - ONT
2 stops17h 21mUnited Airlines
Deal found 9/15$1,038
This United Airlines deal was found by Cheapflights users on 9/15. 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. 10/71:53 pmONT - DUS
2 stops19h 07mUnited Airlines
mié. 10/159:10 amDUS - ONT
2 stops21h 14mUnited Airlines
Deal found 9/15$1,130
This United Airlines deal was found by Cheapflights users on 9/14. 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.
mar. 11/251:40 pmONT - DUS
2 stops19h 25mUnited Airlines
dom. 11/3010:40 amDUS - ONT
2 stops20h 09mUnited Airlines
Deal found 9/14$1,174
This United Airlines deal was found by Cheapflights users on 9/14. 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.
sáb. 12/131:34 pmONT - DUS
2 stops15h 16mUnited Airlines
mar. 12/3010:50 amDUS - ONT
2 stops19h 17mUnited Airlines
Deal found 9/14$1,247
This Delta deal was found by Cheapflights users on 9/14. 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.
vie. 12/127:05 amONT - DUS
2 stops15h 35mDelta
mar. 12/306:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/14$1,392
This British Airways deal was found by Cheapflights users on 9/15. 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.
dom. 10/194:49 pmONT - DUS
2 stops15h 41mBritish Airways
vie. 10/318:25 pmDUS - ONT
2 stops28h 03mBritish Airways
Deal found 9/15$1,654
This Delta deal was found by Cheapflights users on 9/15. 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.
mié. 12/2411:45 amONT - DUS
2 stops17h 00mDelta
vie. 1/26:15 amDUS - ONT
2 stops19h 00mDelta
Deal found 9/15$1,676
This United Airlines deal was found by Cheapflights users on 9/15. 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. 9/241:15 pmONT - DUS
2 stops16h 05mUnited Airlines
dom. 9/2811:05 amDUS - ONT
2 stops18h 19mUnited Airlines
Deal found 9/15$1,702

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 septiembre 16, 2025.
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

dom. 11/2

5:00 am-5:00 pm

2 stops27h 00m

Duesseldorf Intl

mar. 11/11

2:40 pm-10:51 pm

2 stops17h 11m

$618

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

jue. 12/4

1:34 pm-1:35 pm

2 stops15h 01m

Duesseldorf Intl

jue. 1/15

10:50 am-9:58 pm

2 stops20h 08m

$668

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

dom. 10/19

9:36 am-12:40 pm

2 stops18h 04m

Duesseldorf Intl

vie. 10/31

8:30 am-10:31 pm

2 stops46h 01m

$683

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

dom. 12/14

1:34 pm-4:40 pm

2 stops18h 06m

Duesseldorf Intl

sáb. 1/10

9:45 am-10:53 pm

2 stops22h 08m

$1,011

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

sáb. 11/1

1:29 pm-1:50 pm

2 stops16h 21m

Duesseldorf Intl

sáb. 11/15

2:30 pm-10:51 pm

2 stops17h 21m

$1,038

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

mar. 10/7

1:53 pm-6:00 pm

2 stops19h 07m

Duesseldorf Intl

mié. 10/15

9:10 am-9:24 pm

2 stops21h 14m

$1,130

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

mar. 11/25

1:40 pm-6:05 pm

2 stops19h 25m

Duesseldorf Intl

dom. 11/30

10:40 am-9:49 pm

2 stops20h 09m

$1,174

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

sáb. 12/13

1:34 pm-1:50 pm

2 stops15h 16m

Duesseldorf Intl

mar. 12/30

10:50 am-9:07 pm

2 stops19h 17m

$1,247

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

vie. 12/12

7:05 am-7:40 am

2 stops15h 35m

Duesseldorf Intl

mar. 12/30

6:15 am-4:15 pm

2 stops19h 00m

$1,392

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

dom. 10/19

4:49 pm-5:30 pm

2 stops15h 41m

Duesseldorf Intl

vie. 10/31

8:25 pm-4:28 pm

2 stops28h 03m

$1,654

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 20 results
1
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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, January is the cheapest month in which you can book a flight from Ontario to Bonn (average of $729). Flying from Ontario to Bonn in June is currently the most expensive (average of $1,091). 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.

What is the cheapest time of day to fly from ONT to BN9?

Find hourly flight availability from Ontario to Bonn. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 16, 2025.

When flying from Ontario to Bonn, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 27h. 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, January is the cheapest month in which you can book a flight from Ontario to Bonn (average of $729). Flying from Ontario to Bonn in June is currently the most expensive (average of $1,091). 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 septiembre 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$730Average$912FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$752Average$830FlexibilityNo cancel feeOn-time70%

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