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South Dakota

$126+ Cheap flights from Ontario (ONT) to South Dakota

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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
1 adult, Economy
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Cheap flight deals from Ontario to South Dakota

Keep the following information in mind while searching for Ontario to South Dakota flight deals. Data was last updated March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$278
(Frontier)

One-way from

$126
(Trip.com)

Popular in

March

Cheapest in

February

Average price

$515
Provider with most accurate pricing for Los Angeles-Sioux Falls Joe Foss Field flight deals.
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From Ontario to South Dakota
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One-way flight from Ontario to South Dakota
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Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find flight deals from Ontario to South Dakota

Cheapest flights from Ontario to South Dakota
Explore the most affordable flight options available from Ontario to South Dakota. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 28, 2025.

This Frontier deal was found by Cheapflights users on 3/27. 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.
Sun 4/612:59 amONT - FSD
1 stop10h 37mFrontier
Fri 4/112:36 pmFSD - ONT
1 stop11h 23mFrontier
Deal found 3/27$278
This United Airlines deal was found by Cheapflights users on 3/27. 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 4/125:00 amONT - FSD
1 stop5h 37mUnited Airlines
Wed 4/169:05 amFSD - ONT
1 stop5h 33mUnited Airlines
Deal found 3/27$319
This United Airlines deal was found by Cheapflights users on 3/27. 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.
Thu 8/211:00 pmONT - RAP
1 stop4h 53mUnited Airlines
Sun 8/2411:18 amRAP - ONT
1 stop7h 11mUnited Airlines
Deal found 3/27$339
This Delta deal was found by Cheapflights users on 3/28. 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.
Sat 4/512:42 pmONT - FSD
1 stop8h 34mDelta
Tue 4/810:48 amFSD - ONT
2 stops13h 36mDelta
Deal found 3/28$384
This American Airlines deal was found by Cheapflights users on 3/27. 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.
Fri 3/286:10 amONT - FSD
1 stop5h 37mAmerican Airlines
Fri 4/41:27 pmFSD - ONT
1 stop7h 02mAmerican Airlines
Deal found 3/27$409
This Delta deal was found by Cheapflights users on 3/26. 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 5/211:10 pmONT - RAP
2 stops8h 24mDelta
Wed 5/284:25 pmRAP - ONT
2 stops8h 17mDelta
Deal found 3/26$537
This American Airlines deal was found by Cheapflights users on 3/26. 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 6/1912:59 amONT - RAP
1 stop7h 46mAmerican Airlines
Mon 6/234:39 pmRAP - ONT
1 stop8h 20mAmerican Airlines
Deal found 3/26$563

Cheapflights Fare Finder

Customize your flight search to find flights from Ontario to South Dakota 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 28, 2025.
Use the filters below to find and compare flights from Ontario to South Dakota that are best for you.

Fly from

Ontario

Fly to

South Dakota

Route

Depart

Return

Price

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 4/24

12:59 am-1:21 pm

1 stop10h 22m

Sioux Falls Joe Foss Field

Fri 5/2

2:08 pm-11:59 pm

1 stop11h 51m

$278

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 4/12

5:00 am-12:37 pm

1 stop5h 37m

Sioux Falls Joe Foss Field

Wed 4/16

9:05 am-12:38 pm

1 stop5h 33m

$319

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 8/21

1:00 pm-6:53 pm

1 stop4h 53m

Rapid City

Sun 8/24

11:18 am-5:29 pm

1 stop7h 11m

$339

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 6/2

7:05 pm-10:15 am

2 stops13h 10m

Sioux Falls Joe Foss Field

Tue 6/17

5:45 pm-11:44 pm

2 stops7h 59m

$394

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 4/14

12:50 pm-9:36 pm

1 stop6h 46m

Sioux Falls Joe Foss Field

Fri 4/18

2:45 pm-6:20 pm

1 stop5h 35m

$522

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Wed 5/21

1:10 pm-10:34 pm

2 stops8h 24m

Rapid City

Wed 5/28

4:25 pm-11:42 pm

2 stops8h 17m

$537

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 6/19

12:59 am-9:45 am

1 stop7h 46m

Rapid City

Mon 6/23

4:39 pm-11:59 pm

1 stop8h 20m

$563

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 4/24

12:59 am-1:21 pm

1 stop10h 22m

$126

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 5/2

5:05 am-10:58 am

1 stop4h 53m

$219

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 6/2

10:53 am-9:37 pm

1 stop8h 44m

$228

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/28

Showing 1-10 of 13 results
1
2

Best time to book a flight from Ontario to South Dakota

Have a flexible travel schedule? Discover the best time to fly to South Dakota 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 South Dakota

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

Currently, September is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $334). Flying from Ontario to South Dakota 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 SD?

Find hourly flight availability from Ontario to South Dakota. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 28, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to South Dakota as you normally would.

Rainfall in South Dakota by month

Plan your trip to South Dakota by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

Plan your trip to South Dakota by taking into account the average temperature totals by month.

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing South Dakota

Get insights into the airlines that provide service to South Dakota. 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 South Dakota. Reviews last updated March 28, 2025.
To help decide which airline to fly from Ontario to South Dakota, see what other customers have to say about Delta, United Airlines and American Airlines. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
8.0
Very good
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
United Airlines
7.4
Good
8,603 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Frontier
6.0
Okay
3,271 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Comfort

8.0

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to South Dakota. 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 from for flights from Ontario to South Dakota?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to South Dakota. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

  • What are the cheapest airlines to fly from Ontario to South Dakota one-way?

    $126 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on United Airlines and American Airlines, with prices starting from $219 and $228, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to South Dakota 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 South Dakota?

    Currently, September is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $334). Flying from Ontario to South Dakota 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 South Dakota

Discover the top 3 airlines that operate flights from Ontario to South Dakota. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$285FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$278Average$433FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$300Average$482FlexibilityNo cancel feeOn-time69%
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