$576 Find Cheap Flights from Germany to Ontario

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight to Ontario departing on 8/22. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Ontario, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Germany to Ontario

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Germany to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Germany to Ontario

Fri, Aug 22 - Sun, Sep 7
British Airways Logo
10:55 am - 10:48 pmFRA-ONT
20h 53m1 stop
British Airways Logo
2:30 pm - 8:45 amONT-FRA
33h 15m1 stop
$576British Airways
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Thu, Aug 14 - Mon, Aug 18
 Logo
10:55 am - 10:14 pmFRA-ONT
20h 19m1 stop
 Logo
2:57 pm - 10:25 pmONT-FRA
22h 28m2 stops
Fri, Nov 14 - Tue, Nov 18
American Airlines Logo
11:10 am - 11:36 amCGN-ONT
33h 26m2 stops
American Airlines Logo
6:38 am - 10:25 amONT-CGN
18h 47m2 stops
$581American Airlines
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Fri, Nov 14 - Tue, Nov 18
American Airlines Logo
11:10 am - 10:00 pmCGN-ONT
43h 50m2 stops
American Airlines Logo
8:46 am - 10:25 amONT-CGN
16h 39m2 stops
$582American Airlines
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Tue, Sep 23 - Tue, Sep 30
United Airlines Logo
10:30 am - 9:25 pmHAM-ONT
19h 55m2 stops
United Airlines Logo
9:36 am - 12:30 pmONT-HAM
17h 54m2 stops
$609United Airlines
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Thu, Oct 2 - Thu, Oct 9
United Airlines Logo
11:00 am - 10:42 pmHAM-ONT
20h 42m2 stops
United Airlines Logo
9:36 am - 12:30 pmONT-HAM
17h 54m2 stops
$610United Airlines
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Fri, Aug 22 - Sun, Sep 7
Iberia Logo
10:55 am - 10:48 pmFRA-ONT
20h 53m1 stop
Iberia Logo
8:15 am - 8:45 amONT-FRA
15h 30m1 stop
$617Iberia
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Sat, Aug 16 - Tue, Aug 19
Iberia Logo
12:10 pm - 10:48 pmFRA-ONT
19h 38m2 stops
Iberia Logo
8:14 am - 8:45 amONT-FRA
15h 31m1 stop
$626Iberia
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Sun, Aug 24 - Sat, Sep 6
Delta Logo
6:00 am - 4:08 pmBER-ONT
19h 08m2 stops
Delta Logo
7:05 am - 8:20 amONT-BER
16h 15m2 stops
$640Delta
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Sun, Aug 24 - Sat, Sep 6
Delta Logo
6:20 am - 10:20 pmBER-ONT
25h 00m2 stops
Delta Logo
7:05 am - 8:20 amONT-BER
16h 15m2 stops
$646Delta
Find Deal
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KAYAK's insights & trends for flights to Ontario

Get data-powered insights and trends for flights to Ontario to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Ontario is February, where tickets cost $624 on average for return flights. On the other hand, the most expensive months are December and July, where the average cost of tickets from Germany is $1,298 and $917 respectively. For one-way flights, the best month to travel is February with an average price of $624.


Good to know

Low seasonMarch
High seasonDecember
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 65% increase in price.

FAQs - booking Ontario flights

  • How far is Ontario Airport from central Ontario?

    Central Ontario is 3 miles away from Ontario Airport.

  • What is the name of Ontario’s airport?

    When flying to Ontario, you'll arrive at Ontario Airport (ONT). The airport is also known as Ontario or Ontario Intl.

  • What is the cheapest day to fly to Ontario?

    Based on KAYAK data, the cheapest day to fly to Ontario is Friday where round-trip tickets can be as cheap as $638. On the other hand, the most expensive day to fly is Sunday, where round-trip prices are $1,321 on average.

  • How does KAYAK find such low prices on flights to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Ontario?

    The cheapest time of day to fly to Ontario is generally in the morning, when round-trip flights cost $694 on average. The most expensive time of day to fly to Ontario is generally in the evening, which is peak travel time and where the average cost of a ticket is $1,407.

  • How many direct flights to Ontario are there each week?

    Each week there are around 571 direct flights from within Germany to Ontario. The most common day for departures is Friday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Ontario

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Ontario flight deals.

Reviews of the top airline flying from Germany to Ontario

 
See real verified KAYAK customer reviews for airlines flying to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Germany to Ontario. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8861 reviews
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
7.0Entertainment
Airline reviews

Boarded plane and then delayed 1.5 hours while on the plane

4.0 OkayJake, Jul 2025BIH - SFO
Read more United Airlines reviews

Boarded plane and then delayed 1.5 hours while on the plane

It was all good flight was on time, service was good I enjoyed a few movies and everything was smooth

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

My flight was delayed a very short period of time but they did not hold my connecting flight to San Diego, also through United. So they closed the doors before we got off our plane. They would only have to help the door open for another five to ten minutes. So I missed a court deadline for a manditory mediation settlement conference for my client. I had to get an associate to be there in person and be on the phone with him relaying what he needs to do the entire time. The court was very upset with me and so was my client. United cannot be trusted.

We were given vouchers we couldn’t use with a 5.5 hour delay

Really good 😊 the woman at the gate entrance was a little rude checking in our carry-on but i dont think she worked for the airline, she worked for the airport at sacramento, other than that amazing.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Airbus plane, nice and polite staff, entertainment even as it was a short flight.

United out of SFO is having issues with catering so none of our meals were loaded on the plane and no offer of compensation for our tickets purchased was offered.

Everything you need to know for your flight to Ontario

Information on the airport you'll fly into in Ontario

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