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FRA - ONT

Find cheap flights from Frankfurt am Main to Ontario from $585

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Frankfurt am Main to Ontario departing on 5/16. 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
0 bags
Mon 6/3
Mon 6/10

Search 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 in flight searches from Frankfurt am Main to Ontario, 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 Frankfurt am Main to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

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Cheap flight deals 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 round-trip 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 and deals for you by selecting your travel dates.
Choose your dates
10:55 am - 8:08 pmFRA-ONT
18h 13m1 stop
7:31 am - 8:45 amONT-FRA
16h 14m1 stop
$585British Airways
Find Deal
Thu, May 16 - Sun, May 19
6:40 am - 6:22 pmFRA-ONT
20h 42m2 stops
7:31 am - 8:45 amONT-FRA
16h 14m1 stop
Thu, May 16 - Sun, May 19
9:40 am - 10:47 pmFRA-ONT
22h 07m2 stops
10:00 pm - 9:50 amONT-FRA
26h 50m2 stops
$611Delta
Find Deal
Thu, May 16 - Sun, May 19
10:45 am - 9:44 pmFRA-ONT
19h 59m2 stops
11:59 pm - 10:25 pmONT-FRA
37h 26m2 stops
$621American Airlines
Find Deal
Wed, Oct 9 - Sun, Oct 13
10:45 am - 9:44 pmFRA-ONT
19h 59m2 stops
11:59 pm - 10:25 pmONT-FRA
37h 26m2 stops
$623American Airlines
Find Deal
Wed, Oct 9 - Sun, Oct 13
1:55 pm - 9:31 pmFRA-ONT
16h 36m1 stop
10:49 am - 9:45 amONT-FRA
13h 56m1 stop
$665United Airlines
Find Deal
Tue, Sep 3 - Tue, Sep 17
1:55 pm - 9:31 pmFRA-ONT
16h 36m1 stop
10:49 am - 9:45 amONT-FRA
13h 56m1 stop
$666United Airlines
Find Deal
Wed, Sep 4 - Fri, Sep 13
11:00 am - 8:06 pmFRA-ONT
18h 06m1 stop
7:05 am - 8:40 amONT-FRA
16h 35m1 stop
$671KLM
Find Deal
Wed, May 29 - Wed, Jun 19
11:00 am - 7:42 pmFRA-ONT
17h 42m1 stop
7:05 am - 8:40 amONT-FRA
16h 35m1 stop
$682KLM
Find Deal
Sat, Jun 15 - Wed, Jun 19
11:00 am - 8:06 pmFRA-ONT
18h 06m1 stop
10:00 pm - 8:40 amONT-FRA
25h 40m1 stop
$1,274Delta
Find Deal
Sun, May 19 - Thu, May 23

Flights from Frankfurt am Main to Ontario - Travel Insights & Trends

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

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

The average price of all flights from Frankfurt am Main Airport to Ontario clicked on KAYAK for each day over the last 12 months.
For Frankfurt am Main to Ontario, Monday is the cheapest day to fly on average and Thursday is the most expensive. Flying from Ontario back to Frankfurt am Main, the best deals are generally found on Monday, with Sunday being the most expensive.

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 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 November, where tickets cost $620 on average. On the other hand, the most expensive months are July and October, where the average cost of tickets is $1,399 and $778 respectively.

Which airlines provide the cheapest flights from Frankfurt am Main to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Frankfurt am Main to Ontario were found on British Airways ($585) and Delta ($611). British Airways proposed the cheapest one-way flight at $799.

Good to know

Low season

May

High season

July

Cheapest flight

$585
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 88% increase in price.
Flight from Frankfurt am Main to Ontario

When to book flights from Frankfurt am Main to Ontario

Are your dates flexible? Find out the best times to travel from Frankfurt am Main to Ontario 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 Frankfurt am Main to Ontario flights

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

    In the last 3 days, the lowest price for a flight from Frankfurt am Main Airport to Ontario was $783 for a one-way ticket and $585 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Frankfurt am Main to Ontario?

    Frankfurt am Main airport is called Frankfurt am Main and the only airport in Ontario is Ontario.

  • 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?

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

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

    The two airlines most popular with KAYAK users for flights from Frankfurt am Main to Ontario are United Airlines and American Airlines. With an average price for the route of $1,610 and an overall rating of 7.3, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $754 and an overall rating of 7.3.

  • 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 travelers 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 round-trip ticket. You could then fly to Ontario with an airline and back to Frankfurt am Main with another airline. Booking your flights between Frankfurt am Main and ONT 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 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.

See more FAQs

Top 3 airlines serving from Frankfurt am Main 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 am Main 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.
7.3
United AirlinesOverall score based on 11134 reviews
7.1Entertainment
8.1Crew
7.2Comfort
7.7Boarding
6.7Food
Airline reviews

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

8.0 ExcellentHenry, May 2024FCO - SFO
Read more about United Airlines reviews

My bag was lost with my medicine and I am very inconvenienced. I don’t know what happened, however I want you to do a better job on getting people’s bag back

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

One problem, but a serious one - the plane is built with electric windows that tint dark to reduce light. Sitting next to the window is VERY UNCOMFORTABLE as it emits so much HEAT in the face when tinted.

So so. Terrible aircraft choice for that leg of the flight.

Our seat tv didn’t work All the rest was perfect

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

On time every leg of the journey and exceptional staff at counter, gate, and on board. I haven’t travelled in US for a long time and was genuinely surprised how pleasant this was.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

amazing! they were so kind and allowed us to sit on empty seats so we could stretch our legs and sleep good. Food is amazing as well plus dessert in the middle of the flight!

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

American Airlines canceled the flight twice and was unable to facilitate a change of city for us after our travel plans became affected. We lost alot of money due to this and it seems like the airline was trying their best not to facilitate this. Mind you, I am a very loyal member.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

perhaps eye contact with the cabin crew, instead of abruptness and an impatience to serve.

Book cheap flights from Frankfurt am Main to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Frankfurt am Main to Ontario found on KAYAK in the last 72 hours.
10/27Sun
1 stop
34h 54mFRA-ONT
$783
5/10Fri
1 stopBritish Airways
18h 13mFRA-ONT
$799
8/9Fri
1 stopKLM
17h 05mFRA-ONT
$814
8/7Wed
1 stopKLM
17h 05mFRA-ONT
$817
5/28Tue
1 stopIberia
22h 01mFRA-ONT
$889
5/17Fri
1 stopIberia
16h 27mFRA-ONT
$894
6/2Sun
1 stopAmerican Airlines
18h 39mFRA-ONT
$1,522
6/2Sun
2 stopsAmerican Airlines
19h 48mFRA-ONT
$1,526
10/26Sat
1 stopUnited Airlines
14h 57mFRA-ONT
$1,630
7/14Sun
1 stopUnited Airlines
16h 28mFRA-ONT
$2,667

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Last minute flights from Frankfurt am Main to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Frankfurt am Main to Ontario that are departing in the next 10 days.
5/9Thu
multi-stopAmerican Airlines
18h 39mFRA-ONT
5/16Thu
multi-stopAmerican Airlines
17h 45mONT-FRA
$714
5/8Wed
multi-stopBritish Airways
16h 27mFRA-ONT
5/11Sat
multi-stopBritish Airways
23h 46mONT-FRA
$801
5/6Mon
multi-stopIberia
22h 01mFRA-ONT
5/22Wed
multi-stopIberia
16h 14mONT-FRA
$871
5/8Wed
multi-stopAmerican Airlines
18h 39mFRA-ONT
5/11Sat
multi-stopAmerican Airlines
33h 27mONT-FRA
$908
5/6Mon
multi-stopBritish Airways
22h 16mFRA-ONT
5/22Wed
multi-stopBritish Airways
17h 45mONT-FRA
$911
5/6Mon
multi-stopBritish Airways
16h 27mFRA-ONT
5/20Mon
multi-stopBritish Airways
16h 14mONT-FRA
$934
5/7Tue
multi-stopUnited Airlines
14h 34mFRA-ONT
5/21Tue
multi-stopUnited Airlines
14h 03mONT-FRA
$962
5/6Mon
multi-stopIberia
22h 01mFRA-ONT
5/9Thu
multi-stopIberia
16h 14mONT-FRA
$1,014
5/8Wed
multi-stopRoyal Air Maroc
18h 39mFRA-ONT
5/11Sat
multi-stopRoyal Air Maroc
23h 46mONT-FRA
$1,089
5/6Mon
multi-stopUnited Airlines
14h 34mFRA-ONT
5/20Mon
multi-stopUnited Airlines
14h 03mONT-FRA
$1,147

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Frankfurt am Main - Ontario Flights

Departure:

Frankfurt am Main (FRA)Germany

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Frankfurt am Main

Cabin classes: