Ontario

$176+ 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 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Jan 8 — Jan 151
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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 December 9, 2025.

This United Airlines deal was found by Cheapflights users on 12/7. 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.
Mon 12/159:00 amFSD - ONT
1 stop5h 32mUnited Airlines
Mon 1/121:24 pmONT - FSD
1 stop5h 00mUnited Airlines
Deal found 12/7$339
This American Airlines deal was found by Cheapflights users on 12/8. 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.
Wed 12/178:05 amFSD - ONT
1 stop5h 55mAmerican Airlines
Sat 12/204:44 pmONT - FSD
1 stop4h 55mAmerican Airlines
Deal found 12/8$383
This American Airlines deal was found by Cheapflights users on 12/9. 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 12/161:09 pmFSD - ONT
1 stop7h 08mAmerican Airlines
Sun 12/216:20 amONT - FSD
1 stop6h 19mAmerican Airlines
Deal found 12/9$396
This Gotogate deal was found by Cheapflights users on 12/9. 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.
Fri 12/198:50 pmFSD - ONT
1 stop5h 09mFrontier
Mon 12/296:45 amONT - FSD
1 stop11h 10mFrontier
Deal found 12/9$442
This Booking.com deal was found by Cheapflights users on 12/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/198:50 pmFSD - ONT
1 stop5h 09mFrontier
Mon 12/226:45 amONT - FSD
1 stop11h 10mFrontier
Deal found 12/6$443
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/112:55 pmRAP - ONT
1 stop6h 47mUnited Airlines
Sat 12/131:50 pmONT - RAP
2 stops7h 25mUnited Airlines
Deal found 12/7$504
This United Airlines deal was found by Cheapflights users on 12/9. 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 12/205:12 pmFSD - ONT
1 stop5h 55mUnited Airlines
Sat 12/275:05 amONT - FSD
1 stop5h 45mUnited Airlines
Deal found 12/9$531
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/307:00 amRAP - ONT
1 stop6h 38mUnited Airlines
Sat 1/35:05 amONT - RAP
1 stop5h 27mUnited Airlines
Deal found 12/7$641
This Delta deal was found by Cheapflights users on 12/7. 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.
Mon 12/153:05 pmABR - ONT
2 stops10h 53mDelta
Mon 1/127:30 amONT - ABR
2 stops12h 10mDelta
Deal found 12/7$693
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/107:00 amRAP - ONT
1 stop6h 32mUnited Airlines
Fri 12/125:05 amONT - RAP
1 stop7h 06mUnited Airlines
Deal found 12/7$731
This United Airlines deal was found by Cheapflights users on 12/7. 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 12/188:45 amRAP - ONT
2 stops9h 58mUnited Airlines
Sun 12/215:05 amONT - RAP
1 stop6h 41mUnited Airlines
Deal found 12/7$737
This Delta deal was found by Cheapflights users on 12/7. 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.
Tue 12/166:30 amABR - ONT
2 stops12h 37mDelta
Mon 12/226:38 amONT - ABR
2 stops13h 01mDelta
Deal found 12/7$1,423

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 December 9, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$269
(Delta)

One-way from

$176
(Frontier)

Popular in

February

Cheapest in

July

Average price

$373
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Los Angeles flight deals.
Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Los Angeles flights.
From South Dakota to Ontario
One-way flight from South Dakota to Ontario
Highest demand for flights based on searches. 18% potential increase in price ($75 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).
Average for round-trip flights in December 2025

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 December 9, 2025.
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

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Tue 1/13

8:30 am-12:47 pm

1 stop5h 17m

Ontario

Sat 1/17

1:24 pm-8:32 pm

1 stop6h 08m

$339

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Wed 1/21

4:40 pm-8:58 pm

1 stop5h 18m

Ontario

Mon 1/26

5:05 am-1:12 pm

1 stop7h 07m

$339

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 1/10

2:40 pm-8:58 pm

1 stop7h 18m

Ontario

Tue 1/13

1:24 pm-7:14 pm

1 stop4h 50m

$339

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 1/21

9:00 am-12:47 pm

1 stop5h 47m

Ontario

Wed 1/28

1:24 pm-8:24 pm

1 stop5h 00m

$349

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 1/28

11:22 am-10:53 pm

2 stops13h 31m

Ontario

Mon 2/2

5:05 am-12:58 pm

1 stop5h 53m

$354

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 12/17

8:05 am-12:00 pm

1 stop5h 55m

Ontario

Sat 12/20

4:44 pm-11:39 pm

1 stop4h 55m

$383

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Tue 12/16

1:09 pm-6:17 pm

1 stop7h 08m

Ontario

Sun 12/21

6:20 am-2:39 pm

1 stop6h 19m

$396

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 1/28

5:00 am-12:16 pm

2 stops9h 16m

Ontario

Mon 2/2

7:30 am-7:53 pm

2 stops10h 23m

$424

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Mon 12/15

8:00 am-10:49 pm

3 stops16h 49m

Ontario

Mon 1/12

6:39 pm-10:47 am

2 stops14h 08m

$434

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 2/11

9:00 am-8:58 pm

1 stop13h 58m

Ontario

Sat 2/14

5:00 am-12:55 pm

1 stop5h 55m

$440

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 18 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 December is currently the most expensive (average of $259). 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 SD to ONT?

Find hourly flight availability from South Dakota to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 9, 2025.

It’s typically best to fly out from South Dakota to Ontario in the evening. Doing so could potentially save you 58% on the flight price compared to flying at noon, which is usually more expensive.

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 United Airlines and American Airlines fly from South Dakota to Ontario in about 5h 17m. The time it takes to get you to your destination can typically vary by up to 38m. 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?

  • 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 December is currently the most expensive (average of $259). 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

See prices for flight routes from nearby airports that may be better suited for you.

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 December 9, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$400FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$370Average$468FlexibilityNo cancel feeOn-time71%

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