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South Dakota

$181+ 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 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap 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 February 3, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 2/187:17 pm
ONT
-
RAP
1 stop20h 35m
Multiple Airlines
Sun 2/225:42 pm
RAP
-
ONT
1 stop20h 29m
Multiple Airlines
Deal found 2/2$227
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 2/117:17 pm
ONT
-
RAP
1 stop20h 35m
Multiple Airlines
Sun 2/155:42 pm
RAP
-
ONT
1 stop25h 06m
Multiple Airlines
Deal found 2/2$252
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Wed 3/1110:03 pm
ONT
-
RAP
1 stop18h 02m
Multiple Airlines
Sun 3/155:55 pm
RAP
-
ONT
1 stop15h 11m
Multiple Airlines
Deal found 2/2$312
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/186:09 am
ONT
-
RAP
2 stops8h 08m
United Airlines
Sun 2/222:52 pm
RAP
-
ONT
1 stop6h 58m
United Airlines
Deal found 2/2$314
This American Airlines deal was found by Cheapflights users on 2/2. 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.
Tue 3/175:02 pm
ONT
-
FSD
1 stop4h 56m
American Airlines
Tue 4/71:41 pm
FSD
-
ONT
1 stop6h 56m
American Airlines
Deal found 2/2$327
This United Airlines deal was found by Cheapflights users on 2/2. 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 3/171:40 pm
ONT
-
FSD
2 stops8h 04m
United Airlines
Tue 4/79:05 am
FSD
-
ONT
2 stops10h 57m
United Airlines
Deal found 2/2$329
This United Airlines deal was found by Cheapflights users on 2/1. 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 2/131:45 pm
ONT
-
RAP
1 stop7h 31m
United Airlines
Sun 2/222:52 pm
RAP
-
ONT
1 stop6h 58m
United Airlines
Deal found 2/1$339
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Fri 5/811:44 am
ONT
-
FSD
1 stop6h 19m
Multiple Airlines
Mon 5/118:53 pm
FSD
-
ONT
1 stop18h 47m
Multiple Airlines
Deal found 2/2$342
This United Airlines deal was found by Cheapflights users on 2/2. 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 5/27:00 am
ONT
-
FSD
1 stop8h 44m
United Airlines
Sat 5/96:00 am
FSD
-
ONT
2 stops8h 22m
United Airlines
Deal found 2/2$356
This United Airlines deal was found by Cheapflights users on 1/31. 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 5/275:00 am
ONT
-
RAP
1 stop6h 35m
United Airlines
Fri 6/511:15 am
RAP
-
ONT
1 stop7h 03m
United Airlines
Deal found 1/31$359
This United Airlines deal was found by Cheapflights users on 2/1. 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 4/101:43 pm
ONT
-
FSD
1 stop4h 47m
United Airlines
Tue 4/144:57 pm
FSD
-
ONT
1 stop5h 39m
United Airlines
Deal found 2/1$360
This United Airlines deal was found by Cheapflights users on 2/2. 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 2/241:50 pm
ONT
-
RAP
2 stops7h 26m
United Airlines
Sat 2/282:52 pm
RAP
-
ONT
1 stop6h 58m
United Airlines
Deal found 2/2$364

Find 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 February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Kiwi.com)

One-way from

$181
(Frontier)

Popular in

November

Cheapest in

July

Average price

$289
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. 20% potential increase in price ($88 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
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 February 3, 2026.
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

Wed 3/11

10:03 pm-5:05 pm

1 stop18h 02m

Rapid City

Sun 3/15

5:55 pm-8:06 am

1 stop15h 11m

$312

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 3/17

5:02 pm-11:58 pm

1 stop4h 56m

Sioux Falls Joe Foss Field

Tue 4/7

1:41 pm-6:37 pm

1 stop6h 56m

$327

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 3/17

1:40 pm-11:44 pm

2 stops8h 04m

Sioux Falls Joe Foss Field

Tue 4/7

9:05 am-6:02 pm

2 stops10h 57m

$329

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 5/2

7:00 am-5:44 pm

1 stop8h 44m

Sioux Falls Joe Foss Field

Sat 5/9

6:00 am-12:22 pm

2 stops8h 22m

$356

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 2/24

5:00 am-1:13 pm

1 stop7h 13m

Rapid City

Sat 2/28

8:30 am-12:43 pm

1 stop5h 13m

$359

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 6/2

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Tue 6/9

7:00 am-12:32 pm

1 stop6h 32m

$359

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 6/6

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Fri 6/12

11:15 am-5:18 pm

1 stop7h 03m

$359

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 4/10

1:43 pm-11:44 pm

1 stop8h 01m

Sioux Falls Joe Foss Field

Tue 4/14

7:39 am-6:02 pm

2 stops12h 23m

$365

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 7/16

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Tue 7/21

7:00 am-12:32 pm

1 stop6h 32m

$374

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Tue 5/26

5:00 am-12:35 pm

1 stop6h 35m

Rapid City

Thu 6/4

12:35 pm-5:18 pm

1 stop5h 43m

$374

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

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, May is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $110). 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.

How much does it cost to fly round-trip from Ontario to South Dakota?

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 February 3, 2026.
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
9,236 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
11,218 reviews
United Airlines
7.4
Good
9,236 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Frontier
5.7
Fair
3,051 reviews
United Airlines
7.4
Good
9,236 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 3h 08m. 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.

  • 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, May is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $110). 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 February 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$65Average$230FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$258Average$450FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$258Average$419FlexibilityNo cancel feeOn-time69%

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