$492 Cheap Flights from Ontario (ONT) to Frankfurt (FRA)

View $492 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Airport (FRA)

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Find available prices by choosing your travel dates.

Cheap Flights from Ontario to Frankfurt (ONT-FRA)

Prices were available within the past 7 days and start at $492 for one-way flights and $689 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Tue, Aug 19 - Tue, Sep 2
ONT
Ontario
FRA
Frankfurt
$689 Roundtrip, found 2 days ago
$689
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Aug 19 from Ontario to Frankfurt, returning Tue, Sep 2, priced at $689 found 2 days ago
Alaska Airlines
Tue, Aug 12 - Tue, Aug 26
ONT
Ontario
FRA
Frankfurt
$725 Roundtrip, found 3 days ago
$725
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Aug 12 from Ontario to Frankfurt, returning Tue, Aug 26, priced at $725 found 3 days ago
Alaska Airlines
Tue, May 27 - Wed, Jun 4
ONT
Ontario
FRA
Frankfurt
$728 Roundtrip, found 9 hours ago
$728
Roundtrip
found 9 hours ago
Select Alaska Airlines flight, departing Tue, May 27 from Ontario to Frankfurt, returning Wed, Jun 4, priced at $728 found 9 hours ago
United
Mon, Oct 13 - Mon, Nov 3
ONT
Ontario
FRA
Frankfurt
$733 Roundtrip, found 23 hours ago
$733
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Oct 13 from Ontario to Frankfurt, returning Mon, Nov 3, priced at $733 found 23 hours ago
Alaska Airlines
Tue, May 20 - Fri, Jun 6
ONT
Ontario
FRA
Frankfurt
$738 Roundtrip, found 4 days ago
$738
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, May 20 from Ontario to Frankfurt, returning Fri, Jun 6, priced at $738 found 4 days ago
United
Mon, Oct 13 - Sun, Nov 2
ONT
Ontario
FRA
Frankfurt
$739 Roundtrip, found 23 hours ago
$739
Roundtrip
found 23 hours ago
Select United flight, departing Mon, Oct 13 from Ontario to Frankfurt, returning Sun, Nov 2, priced at $739 found 23 hours ago
Alaska Airlines
Sun, Aug 31 - Sun, Sep 7
ONT
Ontario
FRA
Frankfurt
$749 Roundtrip, found 4 days ago
$749
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Aug 31 from Ontario to Frankfurt, returning Sun, Sep 7, priced at $749 found 4 days ago
Air Canada
Thu, Aug 7 - Thu, Aug 21
ONT
Ontario
FRA
Frankfurt
$755 Roundtrip, found 5 hours ago
$755
Roundtrip
found 5 hours ago
Select Air Canada flight, departing Thu, Aug 7 from Ontario to Frankfurt, returning Thu, Aug 21, priced at $755 found 5 hours ago
British Airways
Fri, Aug 8 - Fri, Aug 22
ONT
Ontario
FRA
Frankfurt
$755 Roundtrip, found 5 hours ago
$755
Roundtrip
found 5 hours ago
Select British Airways flight, departing Fri, Aug 8 from Ontario to Frankfurt, returning Fri, Aug 22, priced at $755 found 5 hours ago
Iberia
Thu, Aug 7 - Thu, Aug 21
ONT
Ontario
FRA
Frankfurt
$755 Roundtrip, found 5 hours ago
$755
Roundtrip
found 5 hours ago
Select Iberia flight, departing Thu, Aug 7 from Ontario to Frankfurt, returning Thu, Aug 21, priced at $755 found 5 hours ago
Flights from Ontario (ONT) to Frankfurt (FRA)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Frankfurt Intl.
Airlines serving
Air Canada, Air France, Alaska Airlines, American Airlines, British Airways, Delta, Iberia, KLM, United, Virgin Atlantic
Roundtrip price
$689
Distance
5759 mi

Ontario to Frankfurt Flights

The cheapest times to fly from Ontario to Frankfurt

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Ontario to Frankfurt are during the month of August. You can find some of the cheapest flights from Ontario to Frankfurt with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Ontario to Frankfurt

Sunday is one of the best days to book for cheap flights from Ontario to Frankfurt: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Ontario to Frankfurt

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Ontario to Frankfurt in 2025. You can also book with separate airlines for your outbound and return journeys, from $492 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Ontario to Frankfurt flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Ontario to Frankfurt airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA) cost?
Discover the latest flight deals from ONT to FRA by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from ONT to FRA?
The cheapest flights from ONT to FRA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA)?
You can’t fly direct from Ontario, CA (ONT-Los Angeles - Ontario Intl.) to Frankfurt Intl. Airport (FRA). However, you can easily reach Frankfurt without any layovers by taking off from Los Angeles Intl. Airport (LAX).
What is the cheapest airline that flies from ONT to FRA?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from ONT to FRA. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA)?
You’ll need to catch a flight with a layover when traveling from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA). Direct flights don’t operate daily on this route. However, just filter your search to include one or two stops to discover an option that works for you.
What day of the week has the most flights from ONT to FRA?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary depending on a range of factors, including the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA)?
To avoid possible delays on the Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA) route, aim to travel before 3 PM. Later departures have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
Is it cheaper to buy a plane ticket from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA) last-minute?
Last-minute fares from ONT to FRA are typically more expensive. For the best prices, start looking for flights as early as possible. That said, if you’re flexible with your travel plans, you may land a cheap ticket just before your departure.
Is it cheaper to book an ONT to FRA flight and hotel package?
You’ll generally save money by booking an ONT to FRA flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it’s easy to manage everything in one place. Once you’ve chosen your preferred flights and accommodations, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Los Angeles - Ontario Intl. Airport (ONT) to Frankfurt Intl. Airport (FRA)?
In most cases, you can modify or cancel your ONT to FRA flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline’s fees and policies on flight changes, or if you want more details, head to our Customer Service portal.

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*Available to One Key members.