Ontario

$562+ 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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
STR — ONT
Aug 19 — Aug 261
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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 August 14, 2025.

Round-trip from

$562
(lol.travel)

Popular in

December

Cheapest in

January

Average price

$805
From Stuttgart Echterdingen to Ontario
High demand for flights, 2% potential price rise
Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in August 2025

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 August 14, 2025.

This lol.travel deal was found by Cheapflights users on 8/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:05 amSTR - ONT
2 stops39h 08mUnited Airlines
Thu 10/25:05 amONT - STR
2 stops41h 30mUnited Airlines
Deal found 8/13$562
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/1210:50 amSTR - ONT
2 stops20h 59mUnited Airlines
Sat 12/276:39 pmONT - STR
2 stops33h 06mUnited Airlines
Deal found 8/14$575
This Delta deal was found by Cheapflights users on 8/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:00 amSTR - ONT
2 stops22h 42mDelta
Sat 12/276:00 amONT - STR
2 stops23h 10mDelta
Deal found 8/13$652
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Sat 12/136:25 amSTR - ONT
3 stops25h 24mUnited Airlines
Sat 12/276:00 amONT - STR
2 stops21h 55mUnited Airlines
Deal found 8/13$669
This American Airlines deal was found by Cheapflights users on 8/13. 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.
Mon 9/2212:10 pmSTR - ONT
2 stops19h 23mAmerican Airlines
Mon 9/291:10 pmONT - STR
2 stops22h 25mAmerican Airlines
Deal found 8/13$688
This oojo deal was found by Cheapflights users on 8/14. 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.
Fri 9/59:20 pmSTR - ONT
2 stops30h 34mBritish Airways
Sun 9/2111:59 pmONT - STR
2 stops26h 16mBritish Airways
Deal found 8/14$800
This United Airlines deal was found by Cheapflights users on 8/13. 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 12/510:55 amSTR - ONT
3 stops20h 54mUnited Airlines
Sat 12/276:00 amONT - STR
2 stops21h 55mUnited Airlines
Deal found 8/13$855
This United Airlines deal was found by Cheapflights users on 8/12. 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 12/196:00 amSTR - ONT
2 stops20h 43mUnited Airlines
Thu 1/16:00 amONT - STR
2 stops25h 30mUnited Airlines
Deal found 8/12$949
This Flysmarter deal was found by Cheapflights users on 8/13. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:25 amSTR - ONT
3 stops23h 17mAir Canada
Sat 12/275:40 amONT - STR
3 stops19h 55mAir Canada
Deal found 8/13$984
This Flysmarter deal was found by Cheapflights users on 8/13. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:25 amSTR - ONT
3 stops25h 24mAir Canada
Sat 12/275:40 amONT - STR
3 stops27h 15mAir Canada
Deal found 8/13$1,003

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 August 14, 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

Fri 9/19

6:05 am-12:13 pm

2 stops39h 08m

Ontario

Thu 10/2

5:05 am-7:35 am

2 stops41h 30m

$562

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Fri 12/12

10:50 am-10:49 pm

2 stops20h 59m

Ontario

Sat 12/27

6:39 pm-12:45 pm

2 stops33h 06m

$575

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 12/13

6:00 am-5:17 pm

2 stops20h 17m

Ontario

Sat 12/27

6:00 am-2:10 pm

2 stops23h 10m

$652

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Fri 12/12

6:00 am-10:42 pm

2 stops25h 42m

Ontario

Sat 12/27

6:00 am-2:10 pm

2 stops23h 10m

$652

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Fri 12/5

6:00 am-7:42 pm

2 stops22h 42m

Ontario

Sat 12/27

6:00 am-2:10 pm

2 stops23h 10m

$652

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Thu 12/11

6:00 am-10:41 pm

2 stops25h 41m

Ontario

Sat 12/27

6:00 am-2:10 pm

2 stops23h 10m

$652

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Sat 12/13

6:25 am-10:49 pm

3 stops25h 24m

Ontario

Sat 12/27

6:00 am-12:55 pm

2 stops21h 55m

$669

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Wed 9/24

12:05 pm-10:33 pm

2 stops19h 28m

Ontario

Mon 9/29

1:10 pm-8:35 pm

2 stops22h 25m

$688

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Mon 9/22

12:10 pm-10:33 pm

2 stops19h 23m

Ontario

Tue 9/30

8:15 am-11:05 am

2 stops17h 50m

$688

StuttgartOntario

STR - ONT

STRONT

Stuttgart Echterdingen

Wed 9/24

12:05 pm-10:33 pm

2 stops19h 28m

Ontario

Tue 9/30

8:15 am-11:05 am

2 stops17h 50m

$688

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 16 results
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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.
  • 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

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