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Ontario

$130+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Aug 3 — Aug 101
Mon 8/3
Mon 8/10
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 July 4, 2026.

This Expedia deal was found by Cheapflights users on 7/1. 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.
Wed 7/298:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Wed 8/56:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 7/1$250
This Frontier deal was found by Cheapflights users on 6/29. 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 8/148:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Mon 8/176:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 6/29$260
This Frontier deal was found by Cheapflights users on 7/1. 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 7/248:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Wed 7/296:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 7/1$265
This Frontier deal was found by Cheapflights users on 7/1. 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 7/158:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Mon 7/2010:49 am
ONT
-
FSD
1 stop6h 34m
Frontier
Deal found 7/1$268
This Booking.com deal was found by Cheapflights users on 6/29. 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 7/88:08 pm
FSD
-
ONT
1 stop15h 56m
Frontier
Wed 7/1510:49 am
ONT
-
FSD
1 stop6h 34m
Frontier
Deal found 6/29$270
This Frontier deal was found by Cheapflights users on 7/1. 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 7/178:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Mon 7/206:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 7/1$280
This CheapOair deal was found by Cheapflights users on 6/30. 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 7/138:08 pm
FSD
-
ONT
1 stop15h 56m
Frontier
Wed 7/296:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 6/30$300
This Frontier deal was found by Cheapflights users on 7/1. 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 7/158:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Wed 7/226:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 7/1$303
This Frontier deal was found by Cheapflights users on 7/1. 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 7/178:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Wed 7/226:00 am
ONT
-
FSD
1 stop11h 23m
Frontier
Deal found 7/1$315
This American Airlines deal was found by Cheapflights users on 7/1. 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.
Thu 9/102:10 pm
FSD
-
ONT
1 stop6h 03m
American Airlines
Tue 9/1510:25 am
ONT
-
FSD
1 stop7h 17m
American Airlines
Deal found 7/1$320
This Frontier deal was found by Cheapflights users on 7/3. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:08 pm
FSD
-
ONT
1 stop5h 42m
Frontier
Fri 7/2410:49 am
ONT
-
FSD
1 stop6h 34m
Frontier
Deal found 7/3$324
This United Airlines deal was found by Cheapflights users on 7/1. 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 10/244:26 pm
RAP
-
ONT
1 stop5h 32m
United Airlines
Sat 11/79:00 am
ONT
-
RAP
2 stops12h 08m
United Airlines
Deal found 7/1$414

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 July 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$250
(Expedia)

One-way from

$130
(Frontier)

Popular in

June

Cheapest in

August

Average price

$360
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Los Angeles Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Los Angeles 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. 7% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 July 4, 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

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 7/17

8:08 pm-10:04 am

1 stop15h 56m

Ontario

Mon 7/20

10:49 am-7:23 pm

1 stop6h 34m

$268

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 9/23

8:23 am-4:35 pm

2 stops10h 12m

Ontario

Sat 9/26

6:00 pm-10:19 am

2 stops14h 19m

$385

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 10/24

4:26 pm-8:58 pm

1 stop5h 32m

Ontario

Sat 11/7

9:00 am-10:08 pm

2 stops12h 08m

$414

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Tue 7/7

10:56 am-10:52 pm

2 stops13h 56m

Ontario

Sat 7/11

1:00 pm-10:52 pm

2 stops7h 52m

$430

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 7/31

2:15 pm-6:18 pm

1 stop6h 03m

Ontario

Tue 8/4

1:11 pm-12:18 am

2 stops9h 07m

$463

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 7/29

7:00 am-12:47 pm

1 stop6h 47m

Ontario

Wed 8/5

5:00 am-12:29 pm

1 stop6h 29m

$464

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 9/22

11:22 am-8:01 pm

2 stops9h 39m

Ontario

Sat 9/26

5:00 am-12:26 pm

1 stop6h 26m

$470

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Fri 10/30

5:48 pm-8:56 pm

1 stop28h 08m

Ontario

Tue 11/3

1:13 pm-8:45 pm

1 stop6h 32m

$487
Quickest round-trip

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Sun 8/2

9:30 am-12:47 pm

1 stop5h 17m

Ontario

Sat 8/8

1:18 pm-8:08 pm

1 stop4h 50m

$525

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Thu 7/9

5:05 pm-8:42 pm

1 stop5h 37m

Ontario

Sat 7/11

1:18 pm-8:08 pm

1 stop4h 50m

$532

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/3

Showing 1-10 of 30 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

How much does it cost to fly round-trip from South Dakota to Ontario?

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 Frontier, Delta, and United Airlines fly from South Dakota to Ontario in about 5h 32m. The time it takes to get you to your destination can typically vary by up to 10h 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 July 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$236Average$440FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$370Average$537FlexibilityNo cancel feeOn-time71%

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