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Sioux Falls

$93+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 August 14, 2025.

Round-trip from

$222
(FlightHub)

One-way from

$93
(Frontier)

Popular in

December

Cheapest in

October

Average price

$364
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. 10% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Orbitz 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2112:59 amONT - FSD
1 stop10h 24mFrontier
Mon 8/252:08 pmFSD - ONT
1 stop11h 42mFrontier
Deal found 8/14$185
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/113:43 pmONT - FSD
1 stop20h 26mFrontier
Mon 9/152:54 pmFSD - ONT
1 stop7h 00mFrontier
Deal found 8/14$222
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1912:59 amONT - FSD
1 stop11h 13mFrontier
Thu 8/212:08 pmFSD - ONT
1 stop11h 42mFrontier
Deal found 8/12$223
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1312:59 amONT - FSD
1 stop11h 03mFrontier
Sun 8/172:57 pmFSD - ONT
1 stop20h 16mFrontier
Deal found 8/13$270
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1412:59 amONT - FSD
1 stop15h 38mFrontier
Sun 8/172:57 pmFSD - ONT
1 stop20h 16mFrontier
Deal found 8/13$277
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/3010:50 amONT - FSD
1 stop8h 13mAmerican Airlines
Wed 9/37:00 amFSD - ONT
1 stop8h 54mAmerican Airlines
Deal found 8/14$295
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/225:40 pmONT - FSD
2 stops14h 27mDelta
Sat 9/275:00 amFSD - ONT
2 stops9h 17mDelta
Deal found 8/12$304
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:10 pmONT - FSD
1 stop23h 05mAmerican Airlines
Sat 9/272:45 pmFSD - ONT
1 stop5h 31mAmerican Airlines
Deal found 8/12$345

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 August 14, 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

Thu 9/11

3:43 pm-2:09 pm

1 stop20h 26m

Sioux Falls Joe Foss Field

Mon 9/15

2:54 pm-7:54 pm

1 stop7h 00m

$222

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 8/30

10:50 am-9:03 pm

1 stop8h 13m

Sioux Falls Joe Foss Field

Wed 9/3

7:00 am-1:54 pm

1 stop8h 54m

$295

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 9/22

5:40 pm-10:07 am

2 stops14h 27m

Sioux Falls Joe Foss Field

Sat 9/27

5:00 am-12:17 pm

2 stops9h 17m

$304

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 9/22

1:10 pm-2:15 pm

1 stop23h 05m

Sioux Falls Joe Foss Field

Sat 9/27

2:45 pm-6:16 pm

1 stop5h 31m

$345

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 9/12

12:45 pm-9:23 pm

1 stop6h 38m

Sioux Falls Joe Foss Field

Sat 9/13

2:45 pm-6:16 pm

1 stop5h 31m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 9/10

6:10 am-2:15 pm

1 stop6h 05m

Sioux Falls Joe Foss Field

Sat 9/13

5:33 pm-10:33 pm

1 stop7h 00m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 10/1

6:10 am-2:15 pm

1 stop6h 05m

Sioux Falls Joe Foss Field

Sat 10/4

7:00 am-11:55 am

1 stop6h 55m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 9/11

12:45 pm-9:19 pm

1 stop6h 34m

Sioux Falls Joe Foss Field

Sat 9/13

2:45 pm-6:16 pm

1 stop5h 31m

$349

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 8/26

12:59 am-2:12 pm

1 stop11h 13m

$93

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 8/27

12:59 am-1:23 pm

1 stop10h 24m

$97

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 18 results
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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 August 14, 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.

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 August 14, 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
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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
3,217 reviews
United Airlines
7.4
Good
8,916 reviews

Boarding

7.7

Comfort

7.3

Entertainment

7.1

Food

6.6

Overall

7.4

Crew

8.1

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.

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

    Currently priced at $118, 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 71% 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

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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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$362FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$268Average$416FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$462FlexibilityNo cancel feeOn-time69%

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