HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$601+ Cheap flights from Stuttgart (STR) to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
STR — ONT
Oct 25 — Nov 11
Sat 10/25
Sat 11/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Stuttgart to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Stuttgart to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Stuttgart (STR) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 25, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$601
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$724
Provider with most accurate pricing for Stuttgart Echterdingen-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Stuttgart Echterdingen-Los Angeles flights.
Search Deals
From Stuttgart Echterdingen to Ontario
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Stuttgart to Ontario

Cheapest flights from Stuttgart to Ontario
Explore the most affordable flight options available from Stuttgart to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 25, 2025.

This American Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:15 pmSTR - ONT
2 stops20h 44mAmerican Airlines
Tue 10/76:10 amONT - STR
2 stops19h 55mAmerican Airlines
Deal found 9/24$611
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/257:15 amSTR - ONT
2 stops22h 52mUnited Airlines
Mon 12/2910:42 amONT - STR
2 stops22h 23mUnited Airlines
Deal found 9/25$791
This Gotogate deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:15 amSTR - ONT
2 stops19h 44mBritish Airways
Sat 11/84:47 pmONT - STR
2 stops18h 03mBritish Airways
Deal found 9/24$1,112
This Gotogate deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/911:00 amSTR - ONT
2 stops19h 59mBritish Airways
Fri 11/144:47 pmONT - STR
2 stops17h 03mBritish Airways
Deal found 9/25$1,113
This oojo deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:55 pmSTR - ONT
2 stops30h 57mBritish Airways
Mon 10/2011:59 pmONT - STR
2 stops26h 06mBritish Airways
Deal found 9/25$1,116
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2810:50 amSTR - ONT
2 stops21h 01mUnited Airlines
Sun 12/75:05 amONT - STR
2 stops23h 20mUnited Airlines
Deal found 9/24$2,271
This British Airways deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:15 amSTR - ONT
2 stops20h 14mBritish Airways
Fri 11/144:47 pmONT - STR
2 stops17h 03mBritish Airways
Deal found 9/25$2,590
This Gotogate deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:55 pmSTR - ONT
2 stops20h 02mBritish Airways
Thu 11/276:10 amONT - STR
2 stops19h 15mBritish Airways
Deal found 9/25$6,666

Cheapflights Fare Finder

 
Customize your flight search to find flights from Stuttgart to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 25, 2025.
Use the filters below to find and compare flights from Stuttgart to Ontario that are best for you.

Fly from

Stuttgart

Fly to

Ontario

Route

Depart

Return

Price

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Thu 2/26

6:25 am-10:57 pm

2 stops25h 32m

Ontario

Mon 3/2

5:40 am-1:35 pm

2 stops22h 55m

$601

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Thu 2/26

12:55 pm-9:31 am

2 stops29h 36m

Ontario

Mon 3/2

11:55 pm-8:10 pm

2 stops35h 15m

$609

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 2/14

10:30 am-9:57 pm

2 stops20h 27m

Ontario

Sat 2/21

5:03 pm-7:50 pm

2 stops17h 47m

$625

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 11/1

10:30 am-10:42 pm

2 stops20h 12m

Ontario

Fri 11/14

3:08 pm-6:50 pm

2 stops18h 42m

$666

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Thu 12/25

7:15 am-9:07 pm

2 stops22h 52m

Ontario

Mon 12/29

10:42 am-6:05 pm

2 stops22h 23m

$791

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Fri 10/24

8:30 am-10:52 pm

2 stops23h 22m

Ontario

Sat 11/1

6:38 pm-1:25 pm

2 stops34h 47m

$791

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 10/11

10:00 pm-7:02 pm

2 stops30h 02m

Ontario

Sat 10/25

4:49 pm-11:20 am

2 stops33h 31m

$980

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 11/1

10:30 am-10:42 pm

2 stops20h 12m

Ontario

Mon 11/17

4:47 pm-9:40 am

2 stops31h 53m

$982

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Mon 11/3

11:15 am-9:59 pm

2 stops19h 44m

Ontario

Sat 11/8

4:47 pm-7:50 pm

2 stops18h 03m

$1,109

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sun 11/9

11:00 am-9:59 pm

2 stops19h 59m

Ontario

Fri 11/14

4:47 pm-6:50 pm

2 stops17h 03m

$1,113

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/24

Showing 1-10 of 13 results
1
2

Best time to book a flight from Stuttgart to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Stuttgart with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Stuttgart to Ontario

What is the cheapest month to book a flight from Stuttgart to Ontario?

Currently, August is the cheapest month in which you can book a flight from Stuttgart to Ontario (average of $246). Flying from Stuttgart to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Stuttgart to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Stuttgart to Ontario?

    For as low as $625, United Airlines can have you in Ontario from Stuttgart in 20h 27m. The distance between Stuttgart and Ontario is about 5846 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Stuttgart to Ontario that include hotel bookings?

    Yes. In addition to deals on Stuttgart to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Stuttgart to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Stuttgart to Ontario.

  • Can I find deals for business class flights from Stuttgart to Ontario?

    Yes. Cheapflights offers flight deals from Stuttgart to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Stuttgart to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Stuttgart to Ontario (average of $246). Flying from Stuttgart to Ontario in March is currently the most expensive (average of $328). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Stuttgart to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Frankfurt to Las Vegas flights
Frankfurt to San Francisco flights
Frankfurt to Los Angeles flights
Munich to San Francisco flights
Munich to Los Angeles flights
Frankfurt to Oakland flights
Munich to Ontario flights
Munich to San Diego flights
Munich to Oakland flights
Munich to Burbank flights
Munich to San Jose flights
Frankfurt to San Jose flights
Munich to Santa Ana flights
Munich to Long Beach flights
Munich to Las Vegas flights
Frankfurt to Ontario flights
Frankfurt to Santa Ana flights
Stuttgart to Los Angeles flights
Frankfurt to Long Beach flights
Stuttgart to Santa Ana flights
Stuttgart to Las Vegas flights
Frankfurt to San Diego flights
Stuttgart to San Francisco flights
Stuttgart to San Jose flights
Stuttgart to Oakland flights
Stuttgart to Long Beach flights
Frankfurt to Sacramento flights
Frankfurt to Palm Springs flights
Frankfurt to Fresno flights
Munich to Sacramento flights
Stuttgart to San Diego flights
Stuttgart to Sacramento flights
Munich to Fresno flights
Frankfurt to San Luis Obispo flights
Karlsruhe to Los Angeles flights
Munich to Palm Springs flights
Friedrichshafen to San Diego flights
Frankfurt to Monterey flights
Friedrichshafen to Los Angeles flights
Stuttgart to Santa Barbara flights
Stuttgart to Reno flights
Frankfurt to Medford flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.