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Ontario

$117+ Cheap flights from South Dakota to Ontario (ONT)

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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
RAP — ONT
Jun 21 — Jun 281
Sun 6/21
Sun 6/28
1 adult, Economy
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Cheap flight deals from South Dakota to Ontario

Cheapest flights from South Dakota to Ontario
Explore the most affordable flight options available from South Dakota to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 22, 2026.

This Frontier deal was found by Cheapflights users on 5/20. 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.
Mon 6/298:14 pm
FSD
-
ONT
1 stop15h 51m
Frontier
Wed 7/86:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 5/20$246
This CheapOair deal was found by Cheapflights users on 5/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/18:14 pm
FSD
-
ONT
1 stop15h 51m
Frontier
Mon 7/610:49 am
ONT
-
FSD
1 stop6h 34m
Frontier
Deal found 5/19$255
This Frontier deal was found by Cheapflights users on 5/19. 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.
Mon 6/298:14 pm
FSD
-
ONT
1 stop5h 35m
Frontier
Mon 7/66:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 5/19$272
This Frontier deal was found by Cheapflights users on 5/19. 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.
Wed 6/37:18 pm
FSD
-
ONT
1 stop6h 31m
Frontier
Mon 6/86:00 am
ONT
-
FSD
1 stop7h 40m
Frontier
Deal found 5/19$280
This CheapOair deal was found by Cheapflights users on 5/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:14 pm
FSD
-
ONT
1 stop15h 49m
Frontier
Mon 8/36:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 5/19$282
This Booking.com deal was found by Cheapflights users on 5/20. 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.
Wed 5/207:18 pm
FSD
-
ONT
1 stop16h 47m
Frontier
Wed 5/276:00 am
ONT
-
FSD
1 stop10h 33m
Frontier
Deal found 5/20$288
This Frontier deal was found by Cheapflights users on 5/20. 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.
Mon 8/178:14 pm
FSD
-
ONT
1 stop5h 36m
Frontier
Wed 8/2610:50 am
ONT
-
FSD
1 stop6h 29m
Frontier
Deal found 5/20$291
This Frontier deal was found by Cheapflights users on 5/20. 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.
Mon 8/178:14 pm
FSD
-
ONT
1 stop5h 36m
Frontier
Mon 8/246:00 am
ONT
-
FSD
1 stop11h 19m
Frontier
Deal found 5/20$296
This Frontier deal was found by Cheapflights users on 5/19. 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.
Fri 6/268:14 pm
FSD
-
ONT
1 stop5h 35m
Frontier
Mon 6/296:00 am
ONT
-
FSD
1 stop11h 19m
Frontier
Deal found 5/19$309
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Tue 6/307:00 am
RAP
-
ONT
1 stop6h 47m
United Airlines
Tue 7/145:00 am
ONT
-
RAP
1 stop6h 29m
United Airlines
Deal found 5/19$319
This American Airlines deal was found by Cheapflights users on 5/21. 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.
Tue 6/306:31 am
RAP
-
ONT
2 stops12h 50m
American Airlines
Tue 7/146:10 am
ONT
-
RAP
1 stop5h 00m
American Airlines
Deal found 5/21$324
This American Airlines deal was found by Cheapflights users on 5/18. 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.
Wed 6/312:41 pm
RAP
-
ONT
1 stop8h 15m
American Airlines
Sun 6/76:10 am
ONT
-
RAP
1 stop5h 01m
American Airlines
Deal found 5/18$349

Find flight deals from South Dakota to Ontario

Keep the following information in mind while searching for South Dakota to Ontario flight deals. Data was last updated May 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$246
(Frontier)

One-way from

$117
(Kiwi.com)

Popular in

March

Cheapest in

July

Average price

$360
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Los Angeles flights.
Search Deals
From South Dakota to Ontario
Search Deals
One-way flight from South Dakota to Ontario
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($56 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from South Dakota 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 May 22, 2026.
Use the filters below to find and compare flights from South Dakota to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 6/30

11:44 am-6:21 pm

1 stop7h 37m

Ontario

Tue 7/14

6:10 am-12:10 pm

1 stop5h 00m

$319

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Tue 8/18

5:04 am-12:05 pm

2 stops9h 01m

Ontario

Wed 8/26

7:05 am-7:59 pm

1 stop10h 54m

$325

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 6/3

12:41 pm-7:56 pm

1 stop8h 15m

Ontario

Sun 6/7

6:10 am-12:11 pm

1 stop5h 01m

$349

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Thu 9/10

5:25 am-11:04 am

1 stop7h 39m

Ontario

Mon 9/14

12:00 pm-10:09 pm

1 stop8h 09m

$349

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 6/30

11:00 am-10:41 pm

2 stops12h 41m

Ontario

Tue 7/14

1:00 pm-10:26 pm

2 stops8h 26m

$364

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 9/23

4:09 pm-11:44 pm

2 stops9h 35m

Ontario

Sat 9/26

12:00 pm-10:09 pm

1 stop8h 09m

$387

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 8/19

8:22 am-4:24 pm

2 stops10h 02m

Ontario

Tue 8/25

12:55 pm-10:51 pm

2 stops7h 56m

$392

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 6/17

5:00 am-12:12 pm

2 stops8h 12m

Ontario

Sat 6/20

1:18 pm-8:24 pm

1 stop6h 06m

$398
Quickest round-trip

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 8/25

8:55 am-12:50 pm

1 stop4h 55m

Ontario

Sat 8/29

5:00 am-12:24 pm

1 stop6h 24m

$409

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 8/4

7:00 am-12:47 pm

1 stop6h 47m

Ontario

Sun 8/9

5:00 am-12:29 pm

1 stop6h 29m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/21

Showing 1-10 of 31 resultsSorted by cheapest first
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Best time to book a flight from South Dakota to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from South Dakota 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 South Dakota to Ontario
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • What airport do you fly into for flights to Ontario from South Dakota?

    For a flight from South Dakota to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

  • How long is the flight from South Dakota to Ontario?

    Airlines like American Airlines, Delta, and United Airlines fly from South Dakota to Ontario in about 7h 37m. The time it takes to get you to your destination can typically vary by up to 1h 24m. There are 1038 mi between South Dakota and Ontario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from South Dakota to Ontario?

    When deciding which route to take from South Dakota to Ontario consider Sioux Falls Joe Foss Field - Ontario, Rapid City - Ontario or Aberdeen - Ontario as they are the most popular.

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

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

  • How can I find direct flights from South Dakota to Ontario?

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

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

    Yes. Cheapflights offers flight deals from South Dakota 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.

See more FAQs

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Alternative routes for South Dakota to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
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Top 2 airlines flying from South Dakota to Ontario

Discover the top 2 airlines that operate flights from South Dakota to Ontario. 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 May 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$236Average$419FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$350Average$537FlexibilityNo cancel feeOn-time71%

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