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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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FRA
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$613
(United Airlines)

One-way from

$421
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$1,116
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 ($218 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This United Airlines deal was found by Cheapflights users on 6/30. 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 8/136:00 amONT - DUS
2 stops21h 40mUnited Airlines
Tue 8/199:10 amDUS - ONT
2 stops20h 23mUnited Airlines
Deal found 6/30$613
This Qatar Airways deal was found by Cheapflights users on 7/1. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/182:30 pmONT - DUS
2 stops32h 20mQatar Airways
Mon 9/293:25 pmDUS - ONT
2 stops31h 25mQatar Airways
Deal found 7/1$1,843
This Iberia deal was found by Cheapflights users on 7/1. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/152:37 pmONT - DUS
2 stops19h 33mIberia
Sat 8/3011:55 amDUS - ONT
2 stops19h 53mIberia
Deal found 7/1$1,849
This Mytrip deal was found by Cheapflights users on 6/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1312:45 amONT - DUS
2 stops35h 35mMultiple Airlines
Tue 8/192:50 pmDUS - ONT
2 stops35h 50mMultiple Airlines
Deal found 6/29$3,354

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 July 1, 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 8/13

6:00 am-12:40 pm

2 stops21h 40m

Duesseldorf Intl

Tue 8/19

9:10 am-8:33 pm

2 stops20h 23m

$613

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 9/18

2:30 pm-7:50 am

2 stops32h 20m

Duesseldorf Intl

Mon 9/29

3:25 pm-1:50 pm

2 stops31h 25m

$1,843

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 7/15

2:37 pm-7:10 pm

2 stops19h 33m

Duesseldorf Intl

Sat 8/30

11:55 am-10:48 pm

2 stops19h 53m

$1,849

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Wed 8/13

12:45 am-9:20 pm

2 stops35h 35m

Duesseldorf Intl

Tue 8/19

2:50 pm-5:40 pm

2 stops35h 50m

$3,354

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Sun 8/3

7:00 am-9:40 am

2 stops17h 40m

$421

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 8/14

2:31 pm-10:20 pm

2 stops22h 49m

$532

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Thu 8/14

2:31 pm-9:05 pm

2 stops21h 34m

$623

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Fri 8/15

10:29 pm-11:10 am

2 stops27h 41m

$632

OntarioDüsseldorf

ONT - DUS

ONTDUS

Ontario

Tue 7/15

12:00 pm-7:50 am

2 stops34h 50m

$785

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 $1,088). 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 July 1, 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.

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 July 1, 2025.
Read reviews from past customers who have flown Qatar Airways, United Airlines, and American Airlines from Ontario to Bonn. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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
3,595 reviews
Qatar Airways
7.4
Good
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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
8,858 reviews
Qatar Airways
7.4
Good
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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
2,812 reviews
Qatar Airways
7.4
Good
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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
7,086 reviews
Qatar Airways
7.4
Good
3,595 reviews

Comfort

7.4

Entertainment

7.4

Overall

7.4

Food

7.3

Boarding

7.5

Crew

7.9

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 $532 and $623, 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 $1,088). 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$744Average$937FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$751Average$831FlexibilityNo cancel feeOn-time70%

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