FRA - ONT

422€ Find Cheap Flights from Frankfurt am Main to Ontario – Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Frankfurt to Ontario departing on 04.11.. 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, 0 bags

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Everything you should know

Cheapest return fare
558 €
Typical prices: 674 €-724 €
British Airways
Tue 15.9.Mon 26.10.
FRA - ONT • 1 stop
Cheapest one-way flight
422 €
Iberia
Wed 4.11.
FRA - ONT • 2 stops
Top airlines
Cheapest • from 558 € (return)
Best reviews • 7,4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Direct flights
Not available
There are currently no direct flights between Frankfurt and Ontario. You’ll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 100% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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We hope you love your trip to Ontario!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Frankfurt am Main to Ontario (FRA-ONT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Frankfurt am Main 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 return flight deals from Frankfurt to Ontario

Tue, 15. Sep - Mon, 26. Oct
British Airways Logo
10:55 - 18:53
FRA
-
ONT
16h 58m
1 stop
British Airways Logo
7:00 - 7:15
ONT
-
FRA
16h 15m
1 stop
558 €British Airways
Fri, 28. Aug - Tue, 1. Sep
Iberia Logo
10:55 - 22:59
FRA
-
ONT
21h 04m
1 stop
Iberia Logo
7:05 - 8:45
ONT
-
FRA
16h 40m
1 stop
561 €Iberia
Sun, 6. Sep - Sun, 13. Sep
Iberia Logo
10:55 - 22:59
FRA
-
ONT
21h 04m
1 stop
Iberia Logo
8:25 - 8:45
ONT
-
FRA
15h 20m
1 stop
561 €Iberia
Thu, 8. Oct - Mon, 2. Nov
British Airways Logo
9:20 - 22:59
FRA
-
ONT
22h 39m
1 stop
British Airways Logo
23:59 - 19:40
ONT
-
FRA
34h 41m
2 stops
564 €British Airways
Thu, 10. Sep - Thu, 17. Sep
United Airlines Logo
9:45 - 20:01
FRA
-
ONT
19h 16m
2 stops
United Airlines Logo
6:08 - 9:45
ONT
-
FRA
18h 37m
1 stop
567 €United Airlines
Thu, 10. Sep - Thu, 17. Sep
United Airlines Logo
11:25 - 20:01
FRA
-
ONT
17h 36m
2 stops
United Airlines Logo
7:00 - 12:10
ONT
-
FRA
20h 10m
2 stops
567 €United Airlines
Thu, 17. Sep - Mon, 21. Sep
British Airways Logo
10:55 - 18:53
FRA
-
ONT
16h 58m
1 stop
British Airways Logo
12:37 - 9:50
ONT
-
FRA
36h 13m
2 stops
567 €British Airways
Thu, 17. Sep - Mon, 21. Sep
United Airlines Logo
11:25 - 20:01
FRA
-
ONT
17h 36m
2 stops
United Airlines Logo
5:00 - 9:10
ONT
-
FRA
19h 10m
2 stops
569 €United Airlines
Sun, 20. Sep - Wed, 14. Oct
United Airlines Logo
7:45 - 20:01
FRA
-
ONT
21h 16m
2 stops
United Airlines Logo
8:03 - 9:45
ONT
-
FRA
16h 42m
1 stop
569 €United Airlines
Fri, 28. Aug - Tue, 1. Sep
British Airways Logo
12:10 - 11:43
FRA
-
ONT
32h 33m
2 stops
British Airways Logo
14:27 - 8:45
ONT
-
FRA
33h 18m
1 stop
569 €British Airways
Booking Insights

KAYAK's insights & trends for Frankfurt to Ontario flights

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

How much is a return flight from Frankfurt am Main Airport to Ontario?

This analysis is based on the cheapest return trip price found on KAYAK in the last 12 months by searching for a flight from Frankfurt am Main Airport to Ontario departing in September.

Flight prices are below average for this route right now.

Flights to Ontario from Frankfurt am Main Airport usually cost between 1.343 € and 1.726 € in September.
The lowest price found in the past 5 days was 558 € on British Airways (15. Sept–26. Oct).

What is the cheapest month to fly from Frankfurt am Main Airport to Ontario?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Frankfurt am Main Airport 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 from Frankfurt am Main Airport to Ontario is February, where tickets cost 0 € (return) on average. On the other hand, the most expensive months are August and July, where the average cost of round-trip tickets is 1.348 € and 1.091 € respectively.

Good to know - Cheap tickets from Frankfurt am Main to Ontario

Low season

November

Cheapest flight

422 €
Best time to beat the crowds (40% less expensive on average)
Most popular time to fly and prices are also 9% lower on average.
Flight from Frankfurt am Main to Ontario

When to book flights from Frankfurt to Ontario

Are your dates flexible? Find out the best times to travel from Frankfurt to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Frankfurt am Main to Ontario flights

  • What is the cheapest flight from Frankfurt am Main Airport to Ontario?

    In the last 5 days, the lowest price for a flight from Frankfurt am Main Airport to Ontario was 422 € for a one-way ticket and 558 € for a return.

  • Which aircraft models fly most regularly from Frankfurt am Main to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Frankfurt am Main to Ontario?

    Star Alliance is the only airline alliance operating flights between Frankfurt am Main and Ontario.

  • How does KAYAK find such low prices on flights from Frankfurt am Main 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 from Frankfurt am Main to Ontario.

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

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

  • What is the Hacker Fare option on flights from Frankfurt am Main to Ontario?

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

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Frankfurt am Main 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 from Frankfurt am Main up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Frankfurt to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Frankfurt am Main to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Frankfurt 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 10046 reviews
7,7Boarding
7,1Entertainment
6,6Food
7,3Comfort
8,1Crew
Airline reviews

United was excellent. We had very good experience flying the carrier. Certainly. We will opt to fly them for sure. Lufthansa is out.

8,0 ExcellentHari, Jul 2026
FRA - SFO
Read more United Airlines reviews

United was excellent. We had very good experience flying the carrier. Certainly. We will opt to fly them for sure. Lufthansa is out.

Meals were poor and service rendered on return flight was mediocre as compared to the flight we took to Germany earlier where the attendants were more attentive, energetic, and mindful of passengers' needs. Thumbs up to crew of UA 58. Thumbs down to UA 59..

The flight was delayed so the people from a late connecting flight was able to still make the connection.

The Cree was BEYOND AMAZING. They were, by far, THE BEST CREW I had the pleasure of flying with. They catered to my every need, beyond friendly, and upheld the highest level of professionalism that is of Lufthansa Airlines.

Lufthansa and United Airlines messed up with our reservation and they canceled our flight to Los Angeles. We ended up stuck in Frankfurt with two little kids. They sent us to San Francisco, but their flight was full and they wanted us to sit separated (even our 3-year-old was supposed to sit separated from me or my husband!!! Isn't it illegal???). Then the flight from San Francisco was delayed and we had two little sleepy kids, we were also told we needed to pick up our luggages. It was just horrible. I paid for a direct flight from Frankfurt to LAX and ended up going through hell. I am very upset and going to submit a complaint.

I would’ve liked to have made that flight so I didn’t have to go to Munich and have a 24 hour travel day

Great service; lots of water offered, frequent trash cleanup; tasty food

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

We booked flight thru Amex travel and it was already a lot of money for economy and no reserved seats until check in. On our flight from fra, we could not check in one passenger online and when we went to the airport, they said he does not have a guaranteed seat and he would be on a waiting list. This was a guaranteed seat and United overbooked. It was sos stressful when at the gate because they didn’t have a seat and the response was yeh, nothing we can do because the industry overbooks. But they knew we had one person with no seat and even up till boarding, they didn’t say anything. We had to go to the counter over 3 times and my husband was so beside himself, I went up and the counter person said yes, you have a ticket. Ohalaa, why wouldn’t they say anything? Leave us in angst the entire waiting time on a delayed flight. That’s poor customer service. On the flight, people would recline seats immediately and not even return them to normal when eating. We were so crammed, I can not fly eco again on Lufthansa or United when international. Other airlines have been better even when we were in economy. Not even worth it to upgrade to business compared to other airlines either. Overall, it was a really bad flight mainly because of the initial boarding and then no oversight over passengers. The flight crew did their best but they should really announce it more that people need to recline seats back. Kids kicking chairs, all the babies crying…must’ve been my worse flight in 15 years.

There was a 6 hr delay and they kept saying we would board soon, keeping us close the gate... I could have relaxed someplace instead of hovering around the gate.

Everything you need to know for your flight from Frankfurt to Ontario

Information on your arrival and departure airports