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Sioux Falls

$145+ 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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
avr. 7 — avr. 141
mar. 4/7
mar. 4/14
1 adult, Economy
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Cheap 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 mars 8, 2026.

This Booking.com deal was found by Cheapflights users on 3/8. 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.
jeu. 4/2312:59 am
ONT
-
FSD
1 stop16h 22m
Frontier
lun. 4/278:06 pm
FSD
-
ONT
1 stop5h 49m
Frontier
Deal found 3/8$197
This Expedia deal was found by Cheapflights users on 3/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/106:20 am
ONT
-
FSD
1 stop10h 11m
Frontier
lun. 4/137:21 pm
FSD
-
ONT
1 stop6h 35m
Frontier
Deal found 3/6$240
This Frontier deal was found by Cheapflights users on 3/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/36:20 am
ONT
-
FSD
1 stop10h 11m
Frontier
lun. 4/67:21 pm
FSD
-
ONT
1 stop6h 35m
Frontier
Deal found 3/6$250
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
ven. 4/106:20 am
ONT
-
FSD
1 stop10h 11m
Multiple Airlines
lun. 4/139:35 pm
FSD
-
ONT
2 stops39h 09m
Multiple Airlines
Deal found 3/6$277
This Frontier deal was found by Cheapflights users on 3/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/111:28 am
ONT
-
FSD
1 stop6h 19m
Frontier
mer. 6/38:42 pm
FSD
-
ONT
1 stop5h 07m
Frontier
Deal found 3/7$281
This Frontier deal was found by Cheapflights users on 3/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/36:20 am
ONT
-
FSD
1 stop10h 11m
Frontier
ven. 4/107:21 pm
FSD
-
ONT
1 stop6h 35m
Frontier
Deal found 3/4$290
This American Airlines deal was found by Cheapflights users on 3/5. 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.
mer. 5/64:52 pm
ONT
-
FSD
1 stop5h 07m
American Airlines
sam. 5/92:40 pm
FSD
-
ONT
1 stop6h 54m
American Airlines
Deal found 3/5$291
This Kiwi.com deal was found by Cheapflights users on 3/4. 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.
ven. 4/106:20 am
ONT
-
FSD
1 stop10h 11m
Multiple Airlines
dim. 4/129:10 pm
FSD
-
ONT
2 stops24h 57m
Multiple Airlines
Deal found 3/4$300
This United Airlines deal was found by Cheapflights users on 3/6. 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.
jeu. 6/41:18 pm
ONT
-
FSD
1 stop4h 50m
United Airlines
mar. 6/96:00 am
FSD
-
ONT
2 stops8h 12m
United Airlines
Deal found 3/6$305
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
lun. 3/166:15 am
ONT
-
FSD
1 stop11h 44m
Frontier
ven. 3/208:54 pm
FSD
-
ONT
1 stop29h 05m
Frontier
Deal found 3/3$307
This Gotogate deal was found by Cheapflights users on 3/7. 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.
ven. 3/206:15 am
ONT
-
FSD
1 stop11h 44m
Frontier
lun. 4/67:21 pm
FSD
-
ONT
1 stop6h 35m
Frontier
Deal found 3/7$311

Find 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 mars 8, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$197
(Booking.com)

One-way from

$145
(Frontier)

Popular in

April

Cheapest in

October

Average price

$449
Provider with most accurate pricing for Ontario-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Sioux Falls Joe Foss Field flights.
Search Deals
From Ontario to Sioux Falls Joe Foss Field
Search Deals
One-way flight from Ontario to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($42 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

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 mars 8, 2026.
Use the filters below to find and compare flights from Ontario to Sioux Falls that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

mer. 4/15

1:34 pm-8:30 pm

1 stop4h 56m

Sioux Falls Joe Foss Field

sam. 4/18

3:10 pm-10:31 pm

1 stop9h 21m

$371
Quickest round-trip

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

ven. 4/10

1:43 pm-8:30 pm

1 stop4h 47m

Sioux Falls Joe Foss Field

mar. 4/14

9:05 am-12:38 pm

1 stop5h 33m

$380

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

ven. 4/24

1:43 pm-8:30 pm

1 stop4h 47m

Sioux Falls Joe Foss Field

dim. 4/26

9:05 am-12:38 pm

1 stop5h 33m

$409

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

dim. 5/3

5:00 am-12:34 pm

1 stop5h 34m

Sioux Falls Joe Foss Field

mar. 5/12

9:00 am-12:38 pm

1 stop5h 38m

$415

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

jeu. 5/7

6:00 am-8:20 pm

2 stops12h 20m

Sioux Falls Joe Foss Field

mar. 5/12

11:25 am-5:52 pm

2 stops8h 27m

$434

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

ven. 3/20

11:59 pm-10:46 am

1 stop8h 47m

Sioux Falls Joe Foss Field

mar. 3/24

9:00 am-12:49 pm

1 stop5h 49m

$449

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

mer. 3/18

6:15 am-8:40 pm

2 stops12h 25m

Sioux Falls Joe Foss Field

mar. 3/24

9:00 am-5:41 pm

2 stops10h 41m

$449

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

ven. 4/24

1:43 pm-8:30 pm

1 stop4h 47m

Sioux Falls Joe Foss Field

lun. 4/27

6:00 am-12:20 pm

2 stops8h 20m

$449
Cheapest one-way

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

ven. 3/13

6:15 am-7:59 pm

1 stop11h 44m

$166
Quickest one-way

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

mer. 6/3

11:28 am-7:47 pm

1 stop6h 19m

$230

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from Ontario to Sioux Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Sioux Falls in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Sioux Falls flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Sioux Falls flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Sioux Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Sioux Falls flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Sioux Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, April is the cheapest month in which you can book a flight from Ontario to Sioux Falls (average of $140). Flying from Ontario to Sioux Falls in March is currently the most expensive (average of $339). 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.

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 mars 8, 2026.
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
9,405 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

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
9,405 reviews
United Airlines
7.4
Good
9,405 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

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
7.1
Good
11,399 reviews
United Airlines
7.4
Good
9,405 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

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
5.7
Fair
3,034 reviews
United Airlines
7.4
Good
9,405 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

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.

  • How long is the flight from Ontario to Sioux Falls?

    For as low as $371, United Airlines can have you in Sioux Falls from Ontario in 4h 56m. Ontario and Sioux Falls are separated by a distance of 1295 mi.

  • 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 $293, respectively. Users have found that Frontier is 83% 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, April is the cheapest month in which you can book a flight from Ontario to Sioux Falls (average of $140). Flying from Ontario to Sioux Falls in March is currently the most expensive (average of $339). 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 mars 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$230FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$268Average$401FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$293Average$447FlexibilityNo cancel feeOn-time69%

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