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South Dakota

$105+ 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 5/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Apr 21 — Apr 281
Mon 4/21
Mon 4/28
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 April 16, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$259
(American Airlines)

One-way from

$105
(Frontier)

Popular in

March

Cheapest in

February

Average price

$377
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. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 16, 2025.

This American Airlines deal was found by Cheapflights users on 4/15. 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.
Sat 8/238:37 amONT - RAP
1 stop6h 25mAmerican Airlines
Sat 8/302:32 pmRAP - ONT
1 stop8h 12mAmerican Airlines
Deal found 4/15$259
This American Airlines deal was found by Cheapflights users on 4/14. 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 5/306:01 amONT - FSD
1 stop5h 59mAmerican Airlines
Fri 6/65:16 pmFSD - ONT
1 stop6h 55mAmerican Airlines
Deal found 4/14$269
This Delta deal was found by Cheapflights users on 4/14. 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.
Fri 5/3012:18 pmONT - FSD
1 stop9h 07mDelta
Fri 6/65:00 amFSD - ONT
2 stops11h 15mDelta
Deal found 4/14$299
This Mytrip deal was found by Cheapflights users on 4/14. 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.
Thu 5/2912:59 amONT - FSD
1 stop11h 59mFrontier
Fri 6/63:58 pmFSD - ONT
1 stop9h 52mFrontier
Deal found 4/14$301
This United Airlines deal was found by Cheapflights users on 4/14. 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 5/281:33 pmONT - RAP
1 stop7h 27mUnited Airlines
Tue 6/34:30 pmRAP - ONT
1 stop5h 34mUnited Airlines
Deal found 4/14$339
This United Airlines deal was found by Cheapflights users on 4/14. 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.
Fri 8/151:34 pmONT - FSD
1 stop4h 46mUnited Airlines
Tue 8/192:05 pmFSD - ONT
1 stop5h 24mUnited Airlines
Deal found 4/14$349
This Delta deal was found by Cheapflights users on 4/15. 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.
Fri 5/97:05 pmONT - RAP
2 stops14h 01mDelta
Sun 5/114:25 pmRAP - ONT
2 stops8h 17mDelta
Deal found 4/15$494

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 April 16, 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

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 8/23

8:37 am-4:02 pm

1 stop6h 25m

Rapid City

Sat 8/30

2:32 pm-9:44 pm

1 stop8h 12m

$259

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 5/30

6:01 am-2:00 pm

1 stop5h 59m

Sioux Falls Joe Foss Field

Fri 6/6

5:16 pm-10:11 pm

1 stop6h 55m

$269

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 5/30

12:18 pm-11:25 pm

1 stop9h 07m

Sioux Falls Joe Foss Field

Fri 6/6

5:00 am-2:15 pm

2 stops11h 15m

$299

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 5/29

12:59 am-2:58 pm

1 stop11h 59m

Sioux Falls Joe Foss Field

Fri 6/6

3:58 pm-11:50 pm

1 stop9h 52m

$301

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Wed 5/28

1:33 pm-10:00 pm

1 stop7h 27m

Rapid City

Sat 5/31

7:00 am-12:31 pm

1 stop6h 31m

$339

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 7/11

1:34 pm-8:20 pm

1 stop4h 46m

Sioux Falls Joe Foss Field

Tue 7/15

6:00 am-12:14 pm

2 stops8h 14m

$409

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 5/9

7:05 pm-10:06 am

2 stops14h 01m

Rapid City

Sun 5/11

4:25 pm-11:42 pm

2 stops8h 17m

$494

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 5/18

12:59 am-1:18 pm

1 stop10h 19m

$105

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 5/22

1:33 pm-10:00 pm

1 stop7h 27m

$250

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 5/20

6:00 am-8:49 pm

2 stops12h 49m

$300

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/16

Showing 1-10 of 11 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 April 16, 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 April 16, 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
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

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
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

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
8,665 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

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
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

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
3,281 reviews
Delta
8.0
Very good
7,916 reviews

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Food

7.3

Boarding

8.2

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?

    $105 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 Delta, with prices starting from $250 and $483, 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 April 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$285FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$268Average$482FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$278Average$437FlexibilityNo cancel feeOn-time71%

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