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Ontario

$109+ Cheap flights from South Dakota to Ontario (ONT)

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Mar 5 — Mar 121
Thu 3/5
Thu 3/12
1 adult, Economy
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Cheap flight deals from South Dakota to Ontario

Cheapest flights from South Dakota to Ontario
Explore the most affordable flight options available from South Dakota to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.

This CheapOair 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:42 pm
FSD
-
ONT
1 stop11h 17m
Frontier
Thu 2/262:08 pm
ONT
-
FSD
1 stop20h 48m
Frontier
Deal found 2/2$159
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/26:56 pm
FSD
-
ONT
2 stops44h 15m
Multiple Airlines
Mon 3/96:15 am
ONT
-
FSD
1 stop11h 44m
Multiple Airlines
Deal found 1/31$236
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:42 pm
FSD
-
ONT
1 stop11h 17m
Frontier
Mon 3/96:15 am
ONT
-
FSD
1 stop11h 44m
Frontier
Deal found 1/31$241
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 2/271:59 pm
FSD
-
ONT
2 stops31h 15m
Multiple Airlines
Tue 3/32:06 pm
ONT
-
FSD
1 stop21h 38m
Multiple Airlines
Deal found 2/2$266
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/68:54 pm
FSD
-
ONT
1 stop5h 05m
Frontier
Mon 3/96:15 am
ONT
-
FSD
1 stop11h 44m
Frontier
Deal found 2/1$268
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 4/152:42 pm
RAP
-
ONT
1 stop6h 54m
United Airlines
Sun 4/195:10 am
ONT
-
RAP
1 stop6h 58m
United Airlines
Deal found 2/2$279
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/15:42 pm
RAP
-
ONT
1 stop20h 29m
Multiple Airlines
Sun 3/82:06 pm
ONT
-
RAP
2 stops43h 11m
Multiple Airlines
Deal found 1/31$289
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/99:31 pm
FSD
-
ONT
1 stop18h 21m
Multiple Airlines
Wed 2/118:10 am
ONT
-
FSD
2 stops24h 33m
Multiple Airlines
Deal found 2/1$291
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:16 pm
FSD
-
ONT
1 stop11h 43m
Frontier
Mon 2/236:10 am
ONT
-
FSD
1 stop5h 47m
Frontier
Deal found 2/1$332
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.
Thu 4/167:00 am
RAP
-
ONT
1 stop6h 38m
United Airlines
Mon 4/205:10 am
ONT
-
RAP
1 stop5h 14m
United Airlines
Deal found 2/2$339
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/68:54 pm
FSD
-
ONT
1 stop5h 05m
Frontier
Mon 3/236:15 am
ONT
-
FSD
1 stop11h 44m
Frontier
Deal found 2/2$339
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 2/44:40 pm
RAP
-
ONT
1 stop5h 18m
United Airlines
Sun 3/85:15 am
ONT
-
RAP
1 stop6h 58m
United Airlines
Deal found 1/31$349

Find flight deals from South Dakota to Ontario

Keep the following information in mind while searching for South Dakota to Ontario flight deals. Data was last updated February 3, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$159
(CheapOair)

One-way from

$109
(Gotogate)

Popular in

March

Cheapest in

July

Average price

$428
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Los Angeles flights.
Search Deals
From South Dakota to Ontario
Search Deals
One-way flight from South Dakota to Ontario
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 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 South Dakota to Ontario 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 South Dakota to Ontario that are best for you.

Fly from

South Dakota

Fly to

Ontario

Route

Depart

Return

Price

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Mon 3/2

2:42 pm-11:59 pm

1 stop11h 17m

Ontario

Mon 3/9

6:15 am-7:59 pm

1 stop11h 44m

$241

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 2/27

1:59 pm-7:14 pm

2 stops31h 15m

Ontario

Tue 3/3

2:06 pm-1:44 pm

1 stop21h 38m

$266

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 3/6

8:54 pm-11:59 pm

1 stop5h 05m

Ontario

Mon 3/9

6:15 am-7:59 pm

1 stop11h 44m

$268

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 4/15

2:42 pm-8:36 pm

1 stop6h 54m

Ontario

Sun 4/19

5:10 am-1:08 pm

1 stop6h 58m

$279

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sun 3/1

5:42 pm-1:11 pm

1 stop20h 29m

Ontario

Sun 3/8

2:06 pm-10:17 am

2 stops43h 11m

$289

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 4/16

7:00 am-12:38 pm

1 stop6h 38m

Ontario

Mon 4/20

5:10 am-11:24 am

1 stop5h 14m

$339

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 3/6

8:54 pm-11:59 pm

1 stop5h 05m

Ontario

Mon 3/23

6:15 am-7:59 pm

1 stop11h 44m

$339

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 2/21

8:30 am-12:43 pm

1 stop5h 13m

Ontario

Wed 2/25

1:45 pm-10:16 pm

1 stop7h 31m

$359

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 2/25

9:00 am-12:43 pm

1 stop5h 43m

Ontario

Tue 3/3

5:00 am-12:55 pm

1 stop5h 55m

$360

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Mon 2/23

2:52 pm-8:50 pm

1 stop6h 58m

Ontario

Mon 3/2

1:45 pm-8:44 pm

1 stop5h 59m

$372

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 27 results
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Best time to book a flight from South Dakota to Ontario

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

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

Currently, July is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $93). Flying from South Dakota to Ontario in January is currently the most expensive (average of $258). 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.

Related info for your journey

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

    For a flight from South Dakota to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city.

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

    Airlines like Frontier and United Airlines fly from South Dakota to Ontario in about 6h 54m. The time it takes to get you to your destination can typically vary by up to 4h 23m. There are 1038 mi between South Dakota and Ontario. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from South Dakota to Ontario?

    When deciding which route to take from South Dakota to Ontario consider Sioux Falls Joe Foss Field - Ontario, Rapid City - Ontario or Aberdeen - Ontario as they are the most popular.

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

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

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

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

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

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

    Currently, July is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $93). Flying from South Dakota to Ontario in January is currently the most expensive (average of $258). 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 South Dakota to Ontario

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Top 2 airlines flying from South Dakota to Ontario

Discover the top 2 airlines that operate flights from South Dakota to Ontario. 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
United AirlinesCheapest$268Average$401FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$274Average$509FlexibilityNo cancel feeOn-time71%

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