$447 Cheap Flights from Stuttgart (STR) to Ontario (ONT)

View $447 flight on Wed, Feb 25, 2026Opens in a new window

Popular airlines from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)

Cheap Flights from Stuttgart to Ontario (STR-ONT)

Prices were available within the past 7 days and start at $447 for one-way flights and $755 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

British Airways
Sat, Nov 8 - Tue, Nov 11
STR
Stuttgart
ONT
Ontario
$755 Roundtrip, found 5 hours ago
$755
Roundtrip
found 5 hours ago
Select British Airways flight, departing Sat, Nov 8 from Stuttgart to Ontario, returning Tue, Nov 11, priced at $755 found 5 hours ago
United
Mon, Nov 17 - Wed, Dec 3
STR
Stuttgart
ONT
Ontario
$771 Roundtrip, found 5 days ago
$771
Roundtrip
found 5 days ago
Select United flight, departing Mon, Nov 17 from Stuttgart to Ontario, returning Wed, Dec 3, priced at $771 found 5 days ago
British Airways
Sat, Nov 8 - Mon, Nov 10
STR
Stuttgart
ONT
Ontario
$813 Roundtrip, found 15 hours ago
$813
Roundtrip
found 15 hours ago
Select British Airways flight, departing Sat, Nov 8 from Stuttgart to Ontario, returning Mon, Nov 10, priced at $813 found 15 hours ago
British Airways
Fri, Jan 23 - Sun, Jan 25
STR
Stuttgart
ONT
Ontario
$855 Roundtrip, found 3 days ago
$855
Roundtrip
found 3 days ago
Select British Airways flight, departing Fri, Jan 23 from Stuttgart to Ontario, returning Sun, Jan 25, priced at $855 found 3 days ago
British Airways
Mon, Nov 3 - Fri, Nov 14
STR
Stuttgart
ONT
Ontario
$880 Roundtrip, found 5 days ago
$880
Roundtrip
found 5 days ago
Select British Airways flight, departing Mon, Nov 3 from Stuttgart to Ontario, returning Fri, Nov 14, priced at $880 found 5 days ago
British Airways
Tue, Dec 16 - Tue, Dec 23
STR
Stuttgart
ONT
Ontario
$882 Roundtrip, found 6 days ago
$882
Roundtrip
found 6 days ago
Select British Airways flight, departing Tue, Dec 16 from Stuttgart to Ontario, returning Tue, Dec 23, priced at $882 found 6 days ago
British Airways
Sat, Nov 8 - Tue, Nov 11
STR
Stuttgart
ONT
Ontario
$912 Roundtrip, found 5 hours ago
$912
Roundtrip
found 5 hours ago
Select British Airways flight, departing Sat, Nov 8 from Stuttgart to Ontario, returning Tue, Nov 11, priced at $912 found 5 hours ago
Lufthansa
Mon, Nov 17 - Wed, Dec 3
STR
Stuttgart
ONT
Ontario
$929 Roundtrip, found 5 days ago
$929
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Mon, Nov 17 from Stuttgart to Ontario, returning Wed, Dec 3, priced at $929 found 5 days ago
Delta
Wed, Oct 22 - Sun, Nov 2
STR
Stuttgart
ONT
Ontario
$983 Roundtrip, found 5 days ago
$983
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Oct 22 from Stuttgart to Ontario, returning Sun, Nov 2, priced at $983 found 5 days ago
KLM
Wed, Oct 22 - Sun, Nov 2
STR
Stuttgart
ONT
Ontario
$1,011 Roundtrip, found 5 days ago
$1,011
Roundtrip
found 5 days ago
Select KLM flight, departing Wed, Oct 22 from Stuttgart to Ontario, returning Sun, Nov 2, priced at $1,011 found 5 days ago

Alternative airports near Ontario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to John Wayne SNA. Cheapest option available. Average driving time to city center is 42 minutes. Flights from $1,003
SNA
John Wayne
Cheapest
Average driving time to city center42 min
Flights from $1,003

Frequently asked questions

How much does a flight from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT) cost?
Get a cheap one-way flight from $447 or cheap return flight from $755 from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)?
The cheapest month to fly from STR to ONT is November, when there's less demand. Off-peak months are typically when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from STR to ONT. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)?
There are no daily nonstop flights departing from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT). But you can book flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from STR to ONT?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays are often the quietest.* But this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)?
To avoid potential delays on the Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT) route, travel before 3 PM. Later departures have a 22% higher chance of cancellation.**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 Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT) last-minute?
Waiting until right before your break to book a flight from STR to ONT generally means paying more. While it's possible to find some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to boost your chances of scoring a bargain.
Is it cheaper to book a STR to ONT flight and hotel package?
You'll generally save money by securing a STR to ONT flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your ideal accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Stuttgart Airport (STR) to Los Angeles - Ontario Intl. Airport (ONT)?
It's generally possible to reschedule or cancel your STR to ONT flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Stuttgart
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
British Airways
Roundtrip price
$755
Distance
5848 mi

Book with confidence

Stuttgart to Ontario Flights

The cheapest times to fly from Stuttgart to Ontario

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 Stuttgart to Ontario are during the month of November. You can find some of the cheapest flights from Stuttgart to Ontario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Stuttgart to Ontario

Sunday is one of the best days to book for cheap flights from Stuttgart to Ontario: 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 Stuttgart to Ontario

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 Stuttgart to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $447 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 Stuttgart to Ontario 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 Stuttgart to Ontario 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.

 

Stuttgart to Ontario Flights

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*Available to One Key members.