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$135+ 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 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap 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 March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Booking.com)

One-way from

$135
(Frontier)

Popular in

February

Cheapest in

August

Average price

$413
Provider with most accurate pricing for Sioux Falls Joe Foss Field-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Sioux Falls Joe Foss Field-Los Angeles flights.
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From South Dakota to Ontario
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One-way flight from South Dakota to Ontario
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Highest demand for flights based on searches. 7% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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Find 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 March 31, 2025.

This Booking.com deal was found by Cheapflights users on 3/29. 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 4/112:36 pmFSD - ONT
1 stop11h 23mFrontier
Sun 4/134:25 pmONT - FSD
1 stop19h 11mFrontier
Deal found 3/29$298
This United Airlines deal was found by Cheapflights users on 3/30. 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 5/3111:45 amFSD - ONT
1 stop7h 42mUnited Airlines
Tue 6/31:33 pmONT - FSD
1 stop5h 35mUnited Airlines
Deal found 3/30$319
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Fri 7/1111:16 amRAP - ONT
1 stop7h 09mUnited Airlines
Tue 7/151:34 pmONT - RAP
1 stop7h 26mUnited Airlines
Deal found 3/31$339
This Delta deal was found by Cheapflights users on 3/30. 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 4/184:20 pmFSD - ONT
2 stops9h 21mDelta
Sun 4/206:00 amONT - FSD
2 stops10h 55mDelta
Deal found 3/30$429
This American Airlines deal was found by Cheapflights users on 3/30. 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 6/111:09 pmFSD - ONT
2 stops10h 29mAmerican Airlines
Wed 6/1812:49 pmONT - FSD
1 stop6h 58mAmerican Airlines
Deal found 3/30$444
This Delta deal was found by Cheapflights users on 3/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/24:19 pmRAP - ONT
2 stops8h 22mDelta
Mon 5/511:45 amONT - RAP
2 stops9h 45mDelta
Deal found 3/31$1,390

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 March 31, 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

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 4/11

2:36 pm-11:59 pm

1 stop11h 23m

Ontario

Sun 4/13

4:25 pm-1:36 pm

1 stop19h 11m

$298

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Sat 5/31

11:45 am-5:27 pm

1 stop7h 42m

Ontario

Tue 6/3

1:33 pm-9:08 pm

1 stop5h 35m

$319

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Fri 7/11

11:16 am-5:25 pm

1 stop7h 09m

Ontario

Tue 7/15

1:34 pm-10:00 pm

1 stop7h 26m

$339

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 4/18

4:20 pm-11:41 pm

2 stops9h 21m

Ontario

Sun 4/20

6:00 am-6:55 pm

2 stops10h 55m

$429

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 6/11

1:09 pm-9:38 pm

2 stops10h 29m

Ontario

Wed 6/18

12:49 pm-9:47 pm

1 stop6h 58m

$444

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Fri 5/2

4:19 pm-11:41 pm

2 stops8h 22m

Ontario

Mon 5/5

11:45 am-10:30 pm

2 stops9h 45m

$1,390

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Mon 4/14

2:36 pm-11:59 pm

1 stop11h 23m

$135

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sat 7/19

4:38 pm-8:54 pm

1 stop5h 16m

$219

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Sun 5/18

2:45 pm-6:23 pm

1 stop5h 38m

$228

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Sun 5/18

5:00 am-12:15 pm

2 stops9h 15m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Showing 1-10 of 11 results
1
2

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, August is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $246). Flying from South Dakota to Ontario in March is currently the most expensive (average of $326). 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 March 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from South Dakota to Ontario as you normally would.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 31, 2025.
See what other customers who have flown with Delta, United Airlines and American Airlines from South Dakota to Ontario have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,899 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,614 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Frontier
6.0
Okay
3,276 reviews
Delta
8.0
Very good
7,899 reviews

Comfort

8.0

Crew

8.5

Entertainment

7.9

Food

7.3

Boarding

8.2

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $135. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from South Dakota to Ontario for a low price.

  • 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, August is the cheapest month in which you can book a flight from South Dakota to Ontario (average of $246). Flying from South Dakota to Ontario in March is currently the most expensive (average of $326). 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.
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Top 3 airlines flying from South Dakota to Ontario

Discover the top 3 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 March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$113Average$210FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$283Average$461FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$292Average$382FlexibilityNo cancel feeOn-time71%
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