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Sioux Falls

$131+ Cheap flights from Ontario to Sioux Falls (ONT - FSD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Ontario to Sioux Falls

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Sioux Falls (FSD). 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 16, 2025.

Round-trip from

$175
(Booking.com)

One-way from

$131
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$368
From Ontario to Sioux Falls Joe Foss Field
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One-way flight from Ontario to Sioux Falls Joe Foss Field
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Highest demand for flights based on searches. 11% potential increase in price ($52 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Ontario to Sioux Falls

Cheapest flights from Ontario to Sioux Falls
Explore the most affordable flight options available from Ontario to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:53 amONT - FSD
1 stop4h 45mFrontier
Mon 11/102:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 9/15$175
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/288:59 pmONT - FSD
1 stop15h 10mFrontier
Sun 10/52:54 pmFSD - ONT
1 stop18h 59mFrontier
Deal found 9/14$180
This Booking.com deal was found by Cheapflights users on 9/13. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/208:59 pmONT - FSD
1 stop15h 10mFrontier
Thu 10/302:23 pmFSD - ONT
1 stop11h 27mFrontier
Deal found 9/13$186
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:53 amONT - FSD
1 stop5h 31mFrontier
Sun 10/192:23 pmFSD - ONT
1 stop21h 12mFrontier
Deal found 9/15$235
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/96:53 amONT - FSD
1 stop5h 31mFrontier
Sun 10/122:23 pmFSD - ONT
1 stop11h 27mFrontier
Deal found 9/14$262
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:00 amONT - FSD
1 stop24h 51mMultiple Airlines
Sun 10/52:54 pmFSD - ONT
2 stops32h 02mMultiple Airlines
Deal found 9/16$306
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 12/31:34 pmONT - FSD
1 stop4h 57mUnited Airlines
Sat 12/135:21 pmFSD - ONT
1 stop5h 21mUnited Airlines
Deal found 9/16$349
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 10/19:36 amONT - FSD
2 stops8h 45mUnited Airlines
Sun 10/56:00 amFSD - ONT
2 stops8h 13mUnited Airlines
Deal found 9/16$362

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Sioux Falls 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 16, 2025.
Use the filters below to find and compare flights from Ontario to Sioux Falls that are best for you.

Fly from

Ontario

Fly to

Sioux Falls

Route

Depart

Return

Price

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 9/28

8:59 pm-2:09 pm

1 stop15h 10m

Sioux Falls Joe Foss Field

Sun 10/5

2:54 pm-7:53 am

1 stop18h 59m

$180

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 10/16

6:53 am-2:24 pm

1 stop5h 31m

Sioux Falls Joe Foss Field

Sun 10/19

2:23 pm-9:35 am

1 stop21h 12m

$235

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 10/24

5:50 pm-10:13 am

2 stops14h 23m

Sioux Falls Joe Foss Field

Tue 10/28

5:20 am-12:16 pm

2 stops8h 56m

$279

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 12/3

1:34 pm-8:31 pm

1 stop4h 57m

Sioux Falls Joe Foss Field

Sat 12/13

5:21 pm-8:42 pm

1 stop5h 21m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 3/7

1:00 pm-8:46 pm

1 stop5h 46m

Sioux Falls Joe Foss Field

Tue 3/10

9:14 am-12:33 pm

1 stop5h 19m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 1/30

5:05 am-12:58 pm

1 stop5h 53m

Sioux Falls Joe Foss Field

Sat 2/7

5:18 pm-8:58 pm

1 stop5h 40m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 12/5

1:34 pm-8:31 pm

1 stop4h 57m

Sioux Falls Joe Foss Field

Sat 12/13

5:21 pm-8:42 pm

1 stop5h 21m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 10/2

7:30 pm-2:47 pm

1 stop17h 17m

$131

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 10/23

6:53 am-2:24 pm

1 stop5h 31m

$157

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 10/24

6:05 am-2:47 pm

1 stop6h 42m

$166

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 15 results
1
2

Best time to book a flight from Ontario to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Ontario 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 Ontario to Sioux Falls

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

Currently, September is the cheapest month in which you can book a flight from Ontario to Sioux Falls (average of $334). Flying from Ontario to Sioux Falls in December is currently the most expensive (average of $446). 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.

What is the cheapest time of day to fly from ONT to FSD?

Find hourly flight availability from Ontario to Sioux Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to Sioux Falls in the afternoon. If you’re flexible enough to do this you can expect to save up to 61% on your trip compared to booking a flight at noon.

How much does it cost to fly round-trip from Ontario to Sioux Falls?

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux Falls. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown United Airlines, American Airlines, and Frontier from Ontario to Sioux Falls. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
8,924 reviews
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
Frontier
5.8
Fair
3,174 reviews
United Airlines
7.4
Good
8,924 reviews

Overall

7.4

Entertainment

7.1

Food

6.6

Crew

8.1

Boarding

7.7

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Sioux Falls. 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 Ontario to Sioux Falls?

    For as low as $349, Frontier can have you in Sioux Falls from Ontario in 4h 57m. Ontario and Sioux Falls are separated by a distance of 1295 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ontario to Sioux Falls round-trip?

    Currently priced at $65, Frontier will fly you from Ontario to Sioux Falls and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $268 and $284, respectively. Users have found that Frontier is 84% cheaper than the other options available to this destination.

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

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

  • How can I find direct flights from Ontario to Sioux Falls?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Sioux Falls 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 Ontario to Sioux Falls?

    Currently, September is the cheapest month in which you can book a flight from Ontario to Sioux Falls (average of $334). Flying from Ontario to Sioux Falls in December is currently the most expensive (average of $446). 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

Traveling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Marshall

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Top 3 airlines flying from Ontario to Sioux Falls

Discover the top 3 airlines that operate flights from Ontario to Sioux Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$117Average$368FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$268Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$447FlexibilityNo cancel feeOn-time69%

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