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South Dakota

$97+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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 October 23, 2025.

This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:53 amONT - FSD
1 stop4h 50mFrontier
Thu 11/132:13 pmFSD - ONT
1 stop11h 37mFrontier
Deal found 10/21$182
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:53 amONT - FSD
1 stop4h 50mFrontier
Mon 11/102:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 10/21$208
This Booking.com deal was found by Cheapflights users on 10/20. 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.
Sat 11/112:05 pmONT - FSD
1 stop24h 28mFrontier
Mon 11/32:28 pmFSD - ONT
1 stop11h 22mFrontier
Deal found 10/20$210
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:53 amONT - FSD
1 stop4h 50mFrontier
Fri 11/142:27 pmFSD - ONT
1 stop11h 23mFrontier
Deal found 10/21$214
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:53 amONT - FSD
1 stop9h 40mFrontier
Fri 10/312:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 10/21$238
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier 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
Thu 11/132:13 pmFSD - ONT
1 stop11h 37mFrontier
Deal found 10/21$239
This Booking.com deal was found by Cheapflights users on 10/23. 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 11/58:45 amONT - FSD
1 stop26h 43mFrontier
Mon 11/102:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 10/23$241
This Gotogate deal was found by Cheapflights users on 10/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/306:53 amONT - FSD
1 stop4h 45mFrontier
Mon 11/32:28 pmFSD - ONT
1 stop11h 22mFrontier
Deal found 10/22$251
This Booking.com deal was found by Cheapflights users on 10/22. 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.
Thu 10/236:53 amONT - FSD
1 stop5h 31mFrontier
Thu 10/302:23 pmFSD - ONT
1 stop22h 47mFrontier
Deal found 10/22$254
This Frontier deal was found by Cheapflights users on 10/21. 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 Frontier 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
Mon 11/102:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 10/21$265
This Gotogate deal was found by Cheapflights users on 10/21. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:05 pmONT - FSD
1 stop23h 37mFrontier
Mon 11/102:32 pmFSD - ONT
1 stop11h 18mFrontier
Deal found 10/21$266
This Delta deal was found by Cheapflights users on 10/21. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/221:20 pmONT - RAP
2 stops8h 19mDelta
Thu 11/276:05 amRAP - ONT
2 stops12h 59mDelta
Deal found 10/21$269

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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$182
(Frontier)

One-way from

$97
(Frontier)

Popular in

March

Cheapest in

July

Average price

$365
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.
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From Ontario to South Dakota
Search Deals
One-way flight from Ontario to South Dakota
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 23, 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 11/3

6:53 am-1:43 pm

1 stop4h 50m

Sioux Falls Joe Foss Field

Thu 11/13

2:13 pm-11:50 pm

1 stop11h 37m

$182

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 11/3

6:53 am-1:43 pm

1 stop4h 50m

Sioux Falls Joe Foss Field

Mon 11/10

2:32 pm-11:50 pm

1 stop11h 18m

$208

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 11/3

6:53 am-1:43 pm

1 stop4h 50m

Sioux Falls Joe Foss Field

Fri 11/14

2:27 pm-11:50 pm

1 stop11h 23m

$214

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 11/9

6:45 am-1:33 pm

1 stop4h 48m

Sioux Falls Joe Foss Field

Thu 11/13

2:13 pm-11:50 pm

1 stop11h 37m

$239

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 11/7

6:53 am-1:42 pm

1 stop4h 49m

Sioux Falls Joe Foss Field

Thu 11/13

2:13 pm-11:50 pm

1 stop11h 37m

$239

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 11/5

8:45 am-1:28 pm

1 stop26h 43m

Sioux Falls Joe Foss Field

Mon 11/10

2:32 pm-11:50 pm

1 stop11h 18m

$241

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 3/7

5:40 am-11:13 am

1 stop4h 33m

Rapid City

Sun 3/15

2:52 pm-8:45 pm

1 stop6h 53m

$259

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 11/22

1:20 pm-10:39 pm

2 stops8h 19m

Rapid City

Thu 11/27

6:05 am-6:04 pm

2 stops12h 59m

$269

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 11/9

6:45 am-1:33 pm

1 stop4h 48m

Sioux Falls Joe Foss Field

Fri 11/14

2:27 pm-11:50 pm

1 stop11h 23m

$271

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 11/21

1:29 pm-6:43 pm

1 stop4h 14m

Rapid City

Fri 11/28

8:45 am-12:33 pm

1 stop4h 48m

$283

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 31 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 October 23, 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 October 23, 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
8,991 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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
11,028 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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
3,128 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

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?

    Frontier, United Airlines, and Delta can get you from Ontario to South Dakota in just under 4h 33m. Your travel time can differ by up to 3h 46m. There are 1038 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.

  • 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.

See more FAQs

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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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$230FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$452FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$428FlexibilityNo cancel feeOn-time69%

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