ONT - FRA

$402 Find Cheap Flights from Ontario to Frankfurt am Main

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Frankfurt departing on 8/31. 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 Frankfurt am Main Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Frankfurt am Main, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Frankfurt am Main, as well as popular online travel agencies
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Cheap Flights from Ontario to Frankfurt am Main (ONT-FRA)

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

Mon, Oct 27 - Mon, Nov 10
British Airways Logo
8:15 am - 7:15 amONT-FRA
15h 00m1 stop
British Airways Logo
10:50 am - 7:41 pmFRA-ONT
17h 51m1 stop
$703British Airways
Find Deal
Wed, Oct 29 - Wed, Nov 12
British Airways Logo
8:15 am - 7:15 amONT-FRA
15h 00m1 stop
British Airways Logo
10:50 am - 7:41 pmFRA-ONT
17h 51m1 stop
$704British Airways
Find Deal
Sat, Sep 6 - Fri, Sep 19
KLM Logo
7:05 am - 8:55 amONT-FRA
16h 50m1 stop
KLM Logo
10:40 am - 7:15 pmFRA-ONT
17h 35m1 stop
$708KLM
Find Deal
Fri, Nov 28 - Fri, Dec 12
United Airlines Logo
6:00 am - 9:35 amONT-FRA
18h 35m1 stop
United Airlines Logo
12:50 pm - 10:49 pmFRA-ONT
18h 59m2 stops
$716United Airlines
Find Deal
Tue, Oct 28 - Thu, Nov 6
 Logo
8:15 am - 7:15 amONT-FRA
15h 00m1 stop
 Logo
10:15 am - 6:22 pmFRA-ONT
17h 07m1 stop
Wed, Nov 26 - Wed, Dec 10
United Airlines Logo
7:00 am - 6:35 amONT-FRA
14h 35m1 stop
United Airlines Logo
12:50 pm - 10:49 pmFRA-ONT
18h 59m2 stops
$718United Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
 Logo
2:57 pm - 6:00 pmONT-FRA
18h 03m2 stops
 Logo
10:55 am - 10:48 pmFRA-ONT
20h 53m1 stop
Wed, Oct 15 - Wed, Oct 22
Air Canada Logo
6:27 pm - 8:10 amONT-FRA
28h 43m2 stops
Air Canada Logo
10:15 am - 10:52 pmFRA-ONT
45h 37m2 stops
$730Air Canada
Find Deal
Thu, Sep 4 - Fri, Sep 19
Air Canada Logo
1:15 pm - 8:10 amONT-FRA
33h 55m2 stops
Air Canada Logo
9:55 am - 8:43 pmFRA-ONT
19h 48m2 stops
$738Air Canada
Find Deal
Thu, Aug 14 - Thu, Aug 28
KLM Logo
7:05 am - 8:55 amONT-FRA
16h 50m1 stop
KLM Logo
10:40 am - 7:11 pmFRA-ONT
17h 31m1 stop
$756KLM
Find Deal
Booking Insights

KAYAK's insights & trends for Ontario to Frankfurt flights

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

How much is a round-trip flight from Ontario to Frankfurt am Main Airport?

What’s the cheapest day of the week to fly from Ontario to Frankfurt am Main?

The average price of all round-trip flights from Ontario to Frankfurt am Main Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Frankfurt am Main on a Thursday and more expensive on a Monday. On your return trip to Ontario, you should consider flying back on a Friday, and avoid Sundays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Frankfurt am Main Airport, 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 Ontario to Frankfurt am Main Airport is August, where tickets cost $753 (return) on average. On the other hand, the most expensive months are May and June, where the average cost of round-trip tickets is $1,281 and $1,206 respectively.

Good to know

Low seasonFebruary
Cheapest flight$402
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 3% increase in price.
Flight from Ontario to Frankfurt am Main

When to book flights from Ontario to Frankfurt

Are your dates flexible? Find out the best times to travel from Ontario to Frankfurt based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 Ontario to Frankfurt am Main flights

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

    In the last 3 days, the lowest price for a flight from Ontario to Frankfurt am Main Airport was $402 for a one-way ticket and $703 for a round-trip.

  • Do I need a passport to fly between Ontario and Frankfurt am Main?

    A passport is required to fly from Ontario to Frankfurt am Main.

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

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

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

    oneworld, SkyTeam, and Star Alliance are the airline alliances operating flights between Ontario and Frankfurt am Main, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Frankfurt am Main, United Airlines or British Airways?

    The two airlines most popular with KAYAK users for flights from Ontario to Frankfurt am Main are United Airlines and British Airways. With an average price for the route of $961 and an overall rating of 7.4, United Airlines is the most popular choice. British Airways is also a great choice for the route, with an average price of $830 and an overall rating of 6.6.

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

    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 Ontario to Frankfurt am Main.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Frankfurt am Main from 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 from Ontario to Frankfurt am Main?

    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 Frankfurt am Main with an airline and back to Ontario with another airline. Booking your flights between Ontario and FRA can sometimes prove cheaper using this method.

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

    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 Frankfurt am Main from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Ontario to Frankfurt

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Frankfurt am Main. 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 Ontario to Frankfurt? 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 8896 reviews
6.6Food
7.1Entertainment
7.7Boarding
8.1Crew
7.3Comfort
Airline reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

6.0 GoodLeilani, Jul 2025SFO - KOA
Read more United Airlines reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

A little bit more leg room in premium economy. I am 6’4”.

Boarded plane and then delayed 1.5 hours while on the plane

online check in was not available so i had to get to airport extra early. The flight was delayed and my luggage was lost. I had an argument with the person behind me who wanted to keep her bag on the floor and not allow my seat to recline on a 9hr plus flight. So overall, lots and lots of areas for improvement.

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.

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.

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

LCY airport is an amazing airport and I love the flight from LCY to FRA with BA. Efficient, easy, comfortable and great luggage allownace with BA. I iused to fly predominantley LH, but the service and price - benefit ratio of Lufthansa has deteriorated a lot over the last 5 years. Whereas BA keeps an excellent service level with friendly staff.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

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