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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 7/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jun 23 — Jun 301
Mon 6/23
Mon 6/30
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 June 18, 2025.

Round-trip from

$875
(United Airlines)

One-way from

$421
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$1,153
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 ($223 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 18, 2025.

This United Airlines deal was found by Cheapflights users on 6/16. 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 7/16:00 amONT - DUS
2 stops27h 00mUnited Airlines
Tue 7/156:00 amDUS - ONT
2 stops25h 52mUnited Airlines
Deal found 6/16$875
This Qatar Airways deal was found by Cheapflights users on 6/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/16:00 amONT - DUS
2 stops40h 50mQatar Airways
Tue 7/153:25 pmDUS - ONT
2 stops35h 39mQatar Airways
Deal found 6/17$1,615
This Priceline deal was found by Cheapflights users on 6/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/294:45 pmONT - DUS
2 stops19h 20mBritish Airways
Mon 8/117:00 amDUS - ONT
2 stops19h 52mBritish Airways
Deal found 6/17$1,740
This Iberia deal was found by Cheapflights users on 6/17. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/242:40 pmONT - DUS
2 stops19h 30mIberia
Tue 7/811:55 amDUS - ONT
2 stops20h 59mIberia
Deal found 6/17$3,046
This American Airlines deal was found by Cheapflights users on 6/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2412:55 pmONT - DUS
2 stops19h 50mAmerican Airlines
Fri 7/46:20 amDUS - ONT
2 stops21h 41mAmerican Airlines
Deal found 6/17$5,513

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 June 18, 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

Tue 7/1

6:00 am-6:00 pm

2 stops27h 00m

Duesseldorf Intl

Tue 7/15

6:00 am-10:52 pm

2 stops25h 52m

$875

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 7/1

6:00 am-7:50 am

2 stops40h 50m

Duesseldorf Intl

Thu 7/10

3:25 pm-12:13 am

2 stops41h 48m

$1,615

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 7/29

4:45 pm-9:05 pm

2 stops19h 20m

Duesseldorf Intl

Mon 8/11

7:00 am-5:52 pm

2 stops19h 52m

$1,740

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 7/10

10:53 am-3:00 pm

2 stops19h 07m

Duesseldorf Intl

Sun 7/20

7:30 am-6:53 pm

2 stops20h 23m

$5,506

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 7/30

1:34 pm-6:40 pm

2 stops20h 06m

$421

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 7/29

10:53 am-7:10 pm

2 stops23h 17m

$481

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 8/1

4:45 pm-9:05 pm

2 stops19h 20m

$523

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 7/6

4:44 pm-9:05 pm

2 stops19h 21m

$1,883

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

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 $1,087). 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 June 18, 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.

Rainfall in Bonn by month

Plan your trip to Bonn by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Bonn ranges from 1.2 - 3.1 inches per month. July is typically the wettest month, when rainfall can reach 3.1 in. March is typically the driest time to visit Bonn when rainfall is around 1.2 in.

Temperature in Bonn by month

Plan your trip to Bonn by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Bonn, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Bonn

Get insights into the airlines that provide service to Bonn. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bonn. Reviews last updated June 18, 2025.
See what other customers who have flown with Qatar Airways, United Airlines and American Airlines from Ontario to Bonn have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Qatar Airways
7.4
Good
3,590 reviews
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
United Airlines
7.4
Good
8,809 reviews
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
American Airlines
7.2
Good
10,000 reviews
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
Iberia
7.0
Good
2,778 reviews
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines
British Airways
6.6
Okay
7,031 reviews
Qatar Airways
7.4
Good
3,590 reviews

Food

7.3

Overall

7.4

Comfort

7.4

Crew

7.9

Boarding

7.5

Entertainment

7.4

Reviews

1 / 20
10.0
Excellent

fa,May 2025

PHL - DOH

The best,the staff was experienced,cheerful, professional,I will use from now on more frequently American airlines

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.

  • What are the cheapest airlines to fly from Ontario to Bonn one-way?

    $421 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Iberia and British Airways, with prices starting from $481 and $523, respectively.

  • 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 $1,087). 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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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 June 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$745Average$953FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$831FlexibilityNo cancel feeOn-time70%

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