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South Dakota

$141+ 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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
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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 November 6, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/203:31 pmONT - FSD
1 stop17h 25mMultiple Airlines
Mon 11/248:26 pmFSD - ONT
1 stop5h 31mMultiple Airlines
Deal found 11/5$212
This Kiwi.com deal was found by Cheapflights users on 11/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/203:31 pmONT - FSD
2 stops26h 05mFrontier
Mon 11/248:26 pmFSD - ONT
1 stop5h 31mFrontier
Deal found 11/5$246
This Mytrip deal was found by Cheapflights users on 11/6. 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.
Wed 11/128:45 amONT - FSD
1 stop26h 43mFrontier
Mon 11/172:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 11/6$254
This Frontier deal was found by Cheapflights users on 11/5. 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 11/146:53 amONT - FSD
1 stop4h 49mFrontier
Mon 11/172:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 11/5$257
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/85:18 pmONT - FSD
1 stop19h 42mMultiple Airlines
Sat 12/131:10 pmFSD - ONT
1 stop10h 07mMultiple Airlines
Deal found 11/4$261
This Mytrip deal was found by Cheapflights users on 11/6. 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 11/76:53 amONT - FSD
1 stop4h 49mFrontier
Fri 11/142:27 pmFSD - ONT
1 stop11h 23mFrontier
Deal found 11/6$350
This Delta deal was found by Cheapflights users on 11/5. 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 11/1412:16 pmONT - FSD
1 stop8h 53mDelta
Thu 11/205:05 amFSD - ONT
1 stop8h 01mDelta
Deal found 11/5$374
This United Airlines deal was found by Cheapflights users on 11/5. 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 12/101:34 pmONT - FSD
1 stop4h 47mUnited Airlines
Sat 12/138:00 amFSD - ONT
2 stops14h 42mUnited Airlines
Deal found 11/5$384
This American Airlines deal was found by Cheapflights users on 11/4. 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 11/136:11 amONT - FSD
1 stop5h 50mAmerican Airlines
Sun 11/166:30 amFSD - ONT
1 stop9h 33mAmerican Airlines
Deal found 11/4$409
This United Airlines deal was found by Cheapflights users on 11/6. 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 11/75:05 amONT - RAP
1 stop6h 35mUnited Airlines
Thu 11/135:15 amRAP - ONT
2 stops8h 22mUnited Airlines
Deal found 11/6$414
This United Airlines deal was found by Cheapflights users on 11/4. 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 11/81:32 pmONT - RAP
1 stop5h 54mUnited Airlines
Mon 11/103:18 pmRAP - ONT
1 stop6h 26mUnited Airlines
Deal found 11/4$499
This American Airlines deal was found by Cheapflights users on 11/6. 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 11/712:46 pmONT - RAP
1 stop7h 30mAmerican Airlines
Thu 11/135:18 amRAP - ONT
1 stop7h 35mAmerican Airlines
Deal found 11/6$514

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 November 6, 2025.

Most accurate provider

Mytrip
3 stars

Most trusted provider

Mytrip
3 stars

Round-trip from

$212
(Kiwi.com)

One-way from

$141
(Frontier)

Popular in

March

Cheapest in

July

Average price

$408
Provider with most accurate pricing for Los Angeles-Sioux Falls Joe Foss Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Sioux Falls Joe Foss Field flights.
Search Deals
From Ontario to South Dakota
Search Deals
One-way flight from Ontario to South Dakota
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

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 November 6, 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

Mon 1/12

4:45 pm-11:41 pm

1 stop4h 56m

Sioux Falls Joe Foss Field

Mon 1/19

2:25 pm-6:20 pm

1 stop5h 55m

$269

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 1/12

6:39 pm-10:47 am

2 stops14h 08m

Sioux Falls Joe Foss Field

Mon 1/19

9:00 am-12:47 pm

1 stop5h 47m

$292

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 12/8

10:12 pm-3:00 pm

2 stops14h 48m

Sioux Falls Joe Foss Field

Sat 12/13

1:10 pm-9:17 pm

1 stop10h 07m

$296

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 3/7

1:45 pm-8:38 pm

1 stop4h 53m

Sioux Falls Joe Foss Field

Tue 3/10

9:00 am-12:43 pm

1 stop5h 43m

$379

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 12/10

1:34 pm-8:21 pm

1 stop4h 47m

Sioux Falls Joe Foss Field

Sat 12/13

8:00 am-8:42 pm

2 stops14h 42m

$384

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 11/19

12:58 am-9:45 am

2 stops30h 47m

Sioux Falls Joe Foss Field

Mon 11/24

8:26 pm-11:57 pm

1 stop5h 31m

$391

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 12/23

6:17 pm-11:50 am

1 stop15h 33m

Sioux Falls Joe Foss Field

Fri 12/26

8:50 pm-11:59 pm

1 stop29h 09m

$421

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Mon 1/12

6:00 am-3:22 pm

2 stops8h 22m

Rapid City

Thu 1/15

4:40 pm-8:58 pm

1 stop5h 18m

$456

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 12/26

1:40 pm-7:12 pm

1 stop4h 32m

Rapid City

Wed 12/31

12:18 pm-9:07 pm

1 stop9h 49m

$523

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 12/20

5:05 am-11:32 am

1 stop5h 27m

Rapid City

Tue 12/30

8:45 am-9:07 pm

1 stop13h 22m

$551

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 21 results
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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, December is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $98). Flying from Ontario to South Dakota in March is currently the most expensive (average of $268). 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 November 6, 2025.

A simple way to save on the total cost of your ticket is to fly from Ontario to South Dakota in the afternoon. If you’re flexible enough to do this you can expect to save up to 47% on your trip compared to booking a flight in the morning.

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 November 6, 2025.
See what other customers who have flown with United Airlines, American Airlines, and Frontier from Ontario to South Dakota have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,003 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
United Airlines
7.4
Good
9,003 reviews
United Airlines
7.4
Good
9,003 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
American Airlines
7.2
Good
11,041 reviews
United Airlines
7.4
Good
9,003 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.
Frontier
5.8
Fair
3,116 reviews
United Airlines
7.4
Good
9,003 reviews

Food

6.6

Crew

8.1

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Kathy,Jun 2024

RDD - SFO

United has consistently been good. Every now and then there is a crew member that should probably retire, but most of them are excellent.

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.

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

    American Airlines and United Airlines can get you from Ontario to South Dakota in just under 4h 56m. Your travel time can differ by up to 9h 12m. There are 1295 mi between Ontario and South Dakota. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $141 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $295 and $327, 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, December is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $98). Flying from Ontario to South Dakota in March is currently the most expensive (average of $268). 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.

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Alternative routes for Ontario to South Dakota

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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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$230FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$427FlexibilityNo cancel feeOn-time69%

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