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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 2/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
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 November 26, 2025.

Round-trip from

$580
(oojo)

One-way from

$417
(oojo)

Popular in

June

Cheapest in

February

Average price

$698
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 ($219 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 November 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 November 26, 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.
Wed 12/36:00 amONT - DUS
2 stops25h 40mUnited Airlines
Tue 12/166:20 amDUS - ONT
3 stops25h 29mUnited Airlines
Deal found 11/24$709
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.
Sun 12/71:50 pmONT - DUS
2 stops39h 05mUnited Airlines
Tue 12/166:20 amDUS - ONT
3 stops25h 29mUnited Airlines
Deal found 11/24$712
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.
Tue 12/25:05 amONT - DUS
2 stops28h 00mUnited Airlines
Tue 12/166:20 amDUS - ONT
3 stops25h 29mUnited Airlines
Deal found 11/24$722
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.
Fri 12/56:41 pmONT - DUS
2 stops58h 14mUnited Airlines
Tue 12/166:20 amDUS - ONT
3 stops25h 29mUnited Airlines
Deal found 11/24$767
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.
Thu 12/41:50 pmONT - DUS
2 stops39h 25mUnited Airlines
Sun 12/1410:10 amDUS - ONT
2 stops21h 39mUnited Airlines
Deal found 11/24$815
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.
Fri 12/56:41 pmONT - DUS
2 stops58h 14mUnited Airlines
Sun 12/1410:10 amDUS - ONT
2 stops21h 39mUnited Airlines
Deal found 11/24$821
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/93:04 pmONT - DUS
2 stops18h 01mBritish Airways
Tue 12/238:50 pmDUS - ONT
2 stops33h 08mBritish Airways
Deal found 11/24$884
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.
Tue 12/96:40 amONT - DUS
2 stops40h 00mDelta
Mon 12/292:35 pmDUS - ONT
2 stops42h 19mDelta
Deal found 11/24$975
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.
Mon 12/85:49 pmONT - DUS
2 stops52h 51mDelta
Mon 12/292:35 pmDUS - ONT
2 stops42h 19mDelta
Deal found 11/24$981

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 November 26, 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

Wed 1/28

7:30 am-1:45 pm

2 stops21h 15m

Duesseldorf Intl

Sun 2/1

6:15 am-12:16 pm

2 stops39h 01m

$590

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 1/28

6:00 am-1:35 pm

2 stops22h 35m

Duesseldorf Intl

Sun 2/1

2:40 pm-11:18 am

2 stops29h 38m

$601

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/7

1:50 pm-1:55 pm

2 stops39h 05m

Duesseldorf Intl

Tue 12/16

6:20 am-10:49 pm

3 stops25h 29m

$712

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 12/8

5:05 am-1:45 pm

2 stops23h 40m

Duesseldorf Intl

Tue 12/16

6:15 am-10:49 pm

2 stops25h 34m

$724

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 1/19

4:45 pm-7:45 pm

2 stops18h 00m

Duesseldorf Intl

Wed 2/4

8:45 pm-10:13 pm

2 stops34h 28m

$771

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 12/9

3:04 pm-6:05 pm

2 stops18h 01m

Duesseldorf Intl

Tue 12/23

8:50 pm-8:58 pm

2 stops33h 08m

$884

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 1/8

3:09 pm-4:15 pm

2 stops16h 06m

Duesseldorf Intl

Wed 1/21

7:05 am-6:45 pm

2 stops20h 40m

$893

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 4/3

5:02 pm-1:15 pm

2 stops35h 13m

Duesseldorf Intl

Mon 4/13

6:20 pm-5:46 pm

2 stops56h 26m

$904

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 12/8

5:49 pm-7:40 am

2 stops52h 51m

Duesseldorf Intl

Mon 12/29

2:35 pm-11:54 pm

2 stops42h 19m

$981

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/14

10:47 am-9:25 am

2 stops37h 38m

Duesseldorf Intl

Thu 1/15

8:35 pm-8:10 pm

2 stops32h 35m

$1,073

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/23

Showing 1-10 of 20 results
1
2

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, February is the cheapest month in which you can book a flight from Ontario to Bonn (average of $431). Flying from Ontario to Bonn in June is currently the most expensive (average of $775). 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 November 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Bonn in the evening. If you’re flexible enough to do this you can expect to save up to 41% on your trip compared to booking a flight in the afternoon.

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, Delta, and United Airlines can get you from Ontario to Bonn in just under 21h 15m. Your travel time can differ by up to 10h 40m. 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, February is the cheapest month in which you can book a flight from Ontario to Bonn (average of $431). Flying from Ontario to Bonn in June is currently the most expensive (average of $775). 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 November 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$712Average$893FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$830FlexibilityNo cancel feeOn-time70%

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