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Ontario

$111+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Apr 21 — Apr 281
Tue 4/21
Tue 4/28
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 March 22, 2026.

This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:06 pm
FSD
-
ONT
1 stop5h 49m
Frontier
Sun 4/195:12 pm
ONT
-
FSD
1 stop24h 09m
Frontier
Deal found 3/21$216
This Booking.com deal was found by Cheapflights users on 3/17. 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.
Mon 5/48:06 pm
FSD
-
ONT
1 stop5h 49m
Frontier
Thu 5/710:50 am
ONT
-
FSD
1 stop26h 32m
Frontier
Deal found 3/17$217
This CheapOair deal was found by Cheapflights users on 3/19. 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.
Fri 5/154:07 pm
FSD
-
ONT
1 stop19h 58m
Frontier
Wed 5/2010:50 am
ONT
-
FSD
1 stop5h 43m
Frontier
Deal found 3/19$221
This Booking.com deal was found by Cheapflights users on 3/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/18:06 pm
FSD
-
ONT
1 stop5h 49m
Frontier
Sun 5/312:59 am
ONT
-
FSD
1 stop16h 12m
Frontier
Deal found 3/18$237
This CheapOair deal was found by Cheapflights users on 3/21. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/294:29 pm
FSD
-
ONT
1 stop19h 36m
Frontier
Mon 6/16:00 am
ONT
-
FSD
1 stop7h 44m
Frontier
Deal found 3/21$241
This Delta deal was found by Cheapflights users on 3/17. 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.
Tue 4/215:25 am
FSD
-
ONT
1 stop8h 11m
Delta
Sat 4/2512:49 pm
ONT
-
FSD
1 stop8h 51m
Delta
Deal found 3/17$311
This Delta deal was found by Cheapflights users on 3/17. 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.
Wed 5/65:00 am
FSD
-
ONT
2 stops9h 14m
Delta
Sat 5/91:29 pm
ONT
-
FSD
2 stops7h 42m
Delta
Deal found 3/17$321
This Delta deal was found by Cheapflights users on 3/17. 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 4/205:25 am
FSD
-
ONT
1 stop8h 11m
Delta
Sat 4/2512:49 pm
ONT
-
FSD
1 stop8h 51m
Delta
Deal found 3/17$330
This United Airlines deal was found by Cheapflights users on 3/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
FSD
-
ONT
2 stops8h 12m
United Airlines
Sat 8/81:18 pm
ONT
-
FSD
1 stop4h 50m
United Airlines
Deal found 3/18$332
This Delta deal was found by Cheapflights users on 3/17. 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 4/205:25 am
FSD
-
ONT
1 stop8h 11m
Delta
Tue 4/281:29 pm
ONT
-
FSD
2 stops7h 33m
Delta
Deal found 3/17$354
This United Airlines deal was found by Cheapflights users on 3/19. 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.
Sat 5/22:35 pm
RAP
-
ONT
1 stop7h 01m
United Airlines
Wed 5/65:00 am
ONT
-
RAP
1 stop5h 35m
United Airlines
Deal found 3/19$409
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/72:47 pm
RAP
-
ONT
1 stop6h 49m
United Airlines
Sat 4/115:10 am
ONT
-
RAP
1 stop6h 58m
United Airlines
Deal found 3/17$419

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 March 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$216
(Mytrip)

One-way from

$111
(Expedia)

Popular in

March

Cheapest in

July

Average price

$470
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. 17% potential increase in price ($69 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 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 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 March 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

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 8/5

6:00 am-12:12 pm

2 stops8h 12m

Ontario

Sat 8/8

1:18 pm-8:08 pm

1 stop4h 50m

$332

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 8/19

12:25 pm-9:39 pm

2 stops11h 14m

Ontario

Wed 8/26

6:17 am-5:22 pm

2 stops9h 05m

$378

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Tue 4/28

9:05 am-12:38 pm

1 stop5h 33m

Ontario

Sat 5/2

6:00 am-8:20 pm

2 stops12h 20m

$396

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 5/2

2:35 pm-8:36 pm

1 stop7h 01m

Ontario

Wed 5/6

1:40 pm-9:55 pm

1 stop7h 15m

$409

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 4/16

7:00 am-12:38 pm

1 stop6h 38m

Ontario

Thu 4/23

5:10 am-1:08 pm

1 stop6h 58m

$419

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 4/7

2:47 pm-8:36 pm

1 stop6h 49m

Ontario

Sat 4/11

5:10 am-1:08 pm

1 stop6h 58m

$419
Quickest round-trip

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Thu 7/2

9:30 am-12:47 pm

1 stop5h 17m

Ontario

Fri 7/10

1:18 pm-8:08 pm

1 stop4h 50m

$489

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 4/4

8:30 am-12:38 pm

1 stop5h 08m

Ontario

Sun 4/5

5:10 am-1:08 pm

1 stop6h 58m

$494

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Tue 7/21

9:30 am-12:47 pm

1 stop5h 17m

Ontario

Tue 7/28

5:00 am-12:15 pm

1 stop5h 15m

$597

AberdeenOntario

ABR - ONT

ABRONT

Aberdeen

Fri 4/3

2:45 pm-11:51 pm

2 stops11h 06m

Ontario

Sun 4/5

6:00 am-9:34 pm

2 stops13h 34m

$2,041

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/19

Showing 1-10 of 24 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

What is the cheapest month to book a flight from South Dakota to Ontario?

Currently, July is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $95). Flying from South Dakota to Ontario in March is currently the most expensive (average of $262). 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.

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 United Airlines and American Airlines fly from South Dakota to Ontario in about 8h 12m. The time it takes to get you to your destination can typically vary by up to 3h 02m. There are 1295 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.

  • What is the cheapest month to book a flight from South Dakota to Ontario?

    Currently, July is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $95). Flying from South Dakota to Ontario in March is currently the most expensive (average of $262). 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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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 March 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$236Average$412FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$274Average$537FlexibilityNo cancel feeOn-time71%

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