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Bonn

$471+ 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 4/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jan 1 — Jan 81
Thu 1/1
Thu 1/8
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 December 2, 2025.

This oojo deal was found by Cheapflights users on 12/1. 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.
Wed 12/1012:46 pmONT - DUS
2 stops21h 59mBritish Airways
Wed 12/246:55 pmDUS - ONT
2 stops35h 03mBritish Airways
Deal found 12/1$655
This United Airlines deal was found by Cheapflights users on 11/30. 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 12/35:05 amONT - DUS
2 stops23h 30mUnited Airlines
Mon 12/86:15 amDUS - ONT
2 stops24h 34mUnited Airlines
Deal found 11/30$773
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/141:34 pmONT - DUS
2 stops15h 01mUnited Airlines
Wed 12/3110:30 amDUS - ONT
2 stops19h 37mUnited Airlines
Deal found 12/1$963
This Delta deal was found by Cheapflights users on 12/1. 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 12/1512:12 pmONT - DUS
2 stops16h 33mDelta
Thu 1/86:15 amDUS - ONT
2 stops18h 57mDelta
Deal found 12/1$1,500
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/95:05 amONT - DUS
2 stops23h 30mUnited Airlines
Tue 12/236:20 amDUS - ONT
2 stops23h 47mUnited Airlines
Deal found 12/1$1,659
This Delta deal was found by Cheapflights users on 12/1. 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.
Thu 12/187:05 amONT - DUS
2 stops15h 35mDelta
Thu 1/86:15 amDUS - ONT
2 stops18h 57mDelta
Deal found 12/1$1,681
This oojo deal was found by Cheapflights users on 12/1. 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.
Mon 12/154:47 pmONT - DUS
2 stops17h 58mBritish Airways
Thu 1/17:05 amDUS - ONT
2 stops23h 47mBritish Airways
Deal found 12/1$1,789
This oojo deal was found by Cheapflights users on 12/1. 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 12/42:56 pmONT - DUS
2 stops16h 19mBritish Airways
Wed 12/177:05 amDUS - ONT
2 stops21h 34mBritish Airways
Deal found 12/1$1,838
This United Airlines deal was found by Cheapflights users on 12/2. 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 12/161:34 pmONT - DUS
2 stops18h 06mUnited Airlines
Sun 12/286:20 amDUS - ONT
2 stops20h 23mUnited Airlines
Deal found 12/2$1,943
This oojo deal was found by Cheapflights users on 11/29. 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.
Mon 12/154:47 pmONT - DUS
2 stops17h 58mBritish Airways
Fri 12/197:05 amDUS - ONT
2 stops22h 53mBritish Airways
Deal found 11/29$1,957
This United Airlines deal was found by Cheapflights users on 12/1. 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 12/215:05 amONT - DUS
2 stops23h 30mUnited Airlines
Mon 12/2912:55 pmDUS - ONT
2 stops37h 48mUnited Airlines
Deal found 12/1$2,053

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 December 2, 2025.

Round-trip from

$531
(oojo)

One-way from

$471
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$962
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 ($220 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 December 2025
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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 December 2, 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

Mon 1/12

4:45 pm-7:45 pm

2 stops18h 00m

Duesseldorf Intl

Wed 1/28

10:05 am-10:48 pm

2 stops21h 43m

$531

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 1/28

12:41 pm-5:40 pm

2 stops19h 59m

Duesseldorf Intl

Sun 2/1

2:35 pm-4:15 pm

2 stops34h 40m

$581

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sat 1/17

1:24 pm-1:35 pm

2 stops39h 11m

Duesseldorf Intl

Sat 1/31

6:20 am-9:58 pm

2 stops24h 38m

$602

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 2/11

10:30 pm-7:40 am

2 stops48h 10m

Duesseldorf Intl

Sun 2/15

8:15 am-9:05 pm

2 stops21h 50m

$602

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 1/14

5:05 am-1:35 pm

2 stops23h 30m

Duesseldorf Intl

Wed 1/21

10:30 am-9:58 pm

2 stops20h 28m

$602

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 4/8

11:00 am-12:40 pm

2 stops16h 40m

Duesseldorf Intl

Thu 4/16

10:30 am-10:26 pm

2 stops20h 56m

$673

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 12/15

1:34 pm-1:45 pm

2 stops15h 11m

Duesseldorf Intl

Wed 12/31

10:30 am-9:07 pm

2 stops19h 37m

$963

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/14

1:34 pm-1:35 pm

2 stops15h 01m

Duesseldorf Intl

Tue 12/30

10:50 am-9:07 pm

2 stops19h 17m

$963

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 12/14

1:34 pm-1:35 pm

2 stops15h 01m

Duesseldorf Intl

Wed 12/31

10:30 am-9:07 pm

2 stops19h 37m

$963

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Mon 12/15

1:34 pm-1:45 pm

2 stops15h 11m

Duesseldorf Intl

Tue 12/30

10:50 am-9:07 pm

2 stops19h 17m

$963

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/1

Showing 1-10 of 21 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, 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 December 2, 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 18h. Your travel time can differ by up to 5h 30m. 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

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 December 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$700Average$809FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$719Average$830FlexibilityNo cancel feeOn-time70%

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