ONT - FRA

$420 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 6/5. 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

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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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$810
Typical prices: $1,963-$1,604
Multiple Airlines
Mon 6/1Fri 6/5
ONT - FRA • 1 stop
Cheapest one-way
$420
Multiple Airlines
Fri 6/5
ONT - FRA • 2 stops
Top airlines
Cheapest • from $872 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Frankfurt. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $746 (round-trip)
Shortest trip • 12h 57m (one-way)
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
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Frankfurt!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Frankfurt (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 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, Jun 1 - Fri, Jun 5
Multiple Airlines Logo
11:15 am - 10:50 am
ONT
-
FRA
14h 35m
1 stop
Multiple Airlines Logo
11:40 am - 8:47 pm
FRA
-
ONT
18h 07m
1 stop
$810Multiple Airlines
Thu, Aug 20 - Thu, Aug 27
Multiple Airlines Logo
10:45 am - 10:55 am
ONT
-
FRA
15h 10m
1 stop
Multiple Airlines Logo
11:55 am - 8:24 pm
FRA
-
ONT
17h 29m
1 stop
$830Multiple Airlines
Sat, Nov 14 - Sat, Nov 28
Multiple Airlines Logo
12:00 pm - 7:50 am
ONT
-
FRA
34h 50m
1 stop
Multiple Airlines Logo
10:40 am - 11:27 am
FRA
-
ONT
33h 47m
1 stop
$843Multiple Airlines
Thu, Aug 20 - Thu, Sep 3
Multiple Airlines Logo
10:47 am - 10:55 am
ONT
-
FRA
15h 08m
1 stop
Multiple Airlines Logo
11:55 am - 8:24 pm
FRA
-
ONT
17h 29m
1 stop
$847Multiple Airlines
Mon, Jun 1 - Tue, Jun 9
Multiple Airlines Logo
11:15 am - 10:50 am
ONT
-
FRA
14h 35m
1 stop
Multiple Airlines Logo
11:40 am - 8:47 pm
FRA
-
ONT
18h 07m
1 stop
$851Multiple Airlines
Sat, Aug 22 - Fri, Sep 4
Multiple Airlines Logo
7:10 am - 10:30 am
ONT
-
FRA
18h 20m
1 stop
Multiple Airlines Logo
11:40 am - 10:35 pm
FRA
-
ONT
19h 55m
1 stop
$866Multiple Airlines
Thu, Oct 15 - Thu, Oct 29
Air France Logo
7:00 am - 8:55 am
ONT
-
FRA
16h 55m
1 stop
Air France Logo
10:40 am - 10:14 pm
FRA
-
ONT
19h 34m
1 stop
$872Air France
Thu, Aug 13 - Mon, Aug 31
Multiple Airlines Logo
10:54 am - 10:55 am
ONT
-
FRA
15h 01m
1 stop
Multiple Airlines Logo
11:30 am - 8:24 pm
FRA
-
ONT
17h 54m
1 stop
$890Multiple Airlines
Thu, Jun 4 - Thu, Jun 11
Multiple Airlines Logo
11:15 am - 10:55 am
ONT
-
FRA
14h 40m
1 stop
Multiple Airlines Logo
11:55 am - 11:51 pm
FRA
-
ONT
20h 56m
1 stop
$921Multiple Airlines
Sun, Sep 20 - Sun, Oct 4
KLM Logo
7:00 am - 8:55 am
ONT
-
FRA
16h 55m
1 stop
KLM Logo
10:40 am - 6:01 pm
FRA
-
ONT
16h 21m
1 stop
$922KLM
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?

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

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 January, where tickets cost $0 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $1,627 and $1,367 respectively.

Good to know

Low seasonMarch
Cheapest flight$420
Best time to beat the crowds with an average 37% drop in price.
Most popular time to fly and prices are also 7% lower on average.
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 $420 for a one-way ticket and $810 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, 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 $754 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 $918 and an overall rating of 6.7.

  • 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 9739 reviews
6.6Food
7.1Entertainment
8.1Crew
7.7Boarding
7.3Comfort
Airline reviews

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

10.0 ExcellentThomas, May 2026
DFW - FRA
Read more United Airlines reviews

Friendliest Flight Attendant I’ve seen since I flew on Southwest Airlines. The whole trip was outstanding…and arrived Early!

I didn’t have a seat assignment and my seat was very dirty on the flight from Frankfurt to Budapest.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

They cancelled my flight and rebooked for Monday from Saturday without my consent. Putting me in a stressful spot. I have important medical appointments that I can’t miss and work. I tried to contact them to either rebook or request a refund, but I was always 200 or more in line and could never get ahold of customer service the call would always hang up after waiting 2 hours on hold. I’m not sure if I will ever get a refund even though I paid for seats as well, but my only option was to spend more money to rebook with another airline.

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

Vegetarian selection could be better. Bread was too hard to chew.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

The wheelchair service is useless. They live you in different spots, not tell you anything just wait. I waited 30 minutes in Frankfurt when decided to walk the 25 minutes distance. In Budapest nobody came.

Short flight, crew and staff very efficient. Over all good flight experience.

The plane was fully booked, it was hard to breathe. But the crew was nice.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Check-in in SAN was long. ORD was good. Flight delayed On board crew was ok. No warmth or personality. LHrR barely made connection

Wish the food and overall service was better. They treat Business class passengers same as economy

The flight was delayed due to snow in Frankfurt. There wasn't much information from BA or the airport, but Kayak was great and kept me informed of the delay and gate changes.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

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

Information on your arrival and departure airports