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South Dakota

$140+ Cheap flights from Ontario (ONT) to South Dakota

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — FSD
Jan 22 — Jan 291
Wed 1/22
Wed 1/29
1 adult, Economy
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Cheap flight deals from Ontario to South Dakota

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to South Dakota (USSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 17, 2025.

Round-trip from

$140
(CheapOair)
From Ontario to South Dakota
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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 January 17, 2025.

This CheapOair deal was found by Cheapflights users on 1/16. 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.
Thu 5/1512:16 pmONT - FSD
1 stop23h 07mFrontier
Mon 5/192:13 pmFSD - ONT
1 stop11h 46mFrontier
Deal found 1/16$140
This United Airlines deal was found by Cheapflights users on 1/14. 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 2/101:45 pmONT - RAP
1 stop5h 52mUnited Airlines
Sun 2/168:21 amRAP - ONT
1 stop5h 21mUnited Airlines
Deal found 1/14$259
This Delta deal was found by Cheapflights users on 1/16. 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 8/1510:59 pmONT - RAP
1 stop11h 31mDelta
Mon 8/182:20 pmRAP - ONT
2 stops10h 23mDelta
Deal found 1/16$264
This American Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 2/136:13 amONT - FSD
1 stop5h 58mAmerican Airlines
Sun 2/162:45 pmFSD - ONT
1 stop5h 41mAmerican Airlines
Deal found 1/16$269
This Delta deal was found by Cheapflights users on 1/16. 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 2/211:05 pmONT - FSD
1 stop8h 09mDelta
Sat 3/11:18 pmFSD - ONT
2 stops12h 08mDelta
Deal found 1/16$299
This United Airlines deal was found by Cheapflights users on 1/16. 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 2/221:44 pmONT - FSD
1 stop7h 59mUnited Airlines
Wed 2/265:08 pmFSD - ONT
1 stop5h 44mUnited Airlines
Deal found 1/16$319

Find flights from Ontario to South Dakota within your budget

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 January 17, 2025.

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Fly to

Any airport

Route

Depart

Return

Price

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 5/15

12:16 pm-1:23 pm

1 stop23h 07m

Sioux Falls Joe Foss Field

Mon 5/19

2:13 pm-11:59 pm

1 stop11h 46m

$140

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Mon 2/10

1:45 pm-8:37 pm

1 stop5h 52m

Rapid City

Sun 2/16

8:21 am-12:42 pm

1 stop5h 21m

$259

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 2/13

6:13 am-2:11 pm

1 stop5h 58m

Sioux Falls Joe Foss Field

Sun 2/16

2:45 pm-6:26 pm

1 stop5h 41m

$269

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 2/21

1:05 pm-11:14 pm

1 stop8h 09m

Sioux Falls Joe Foss Field

Sat 3/1

1:18 pm-11:26 pm

2 stops12h 08m

$299

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 2/22

1:44 pm-11:43 pm

1 stop7h 59m

Sioux Falls Joe Foss Field

Sat 3/1

5:08 pm-8:52 pm

1 stop5h 44m

$319

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Mon 6/2

1:33 pm-7:11 pm

1 stop4h 38m

$322

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 2/8

6:15 am-8:23 pm

2 stops12h 08m

$345

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 3/16

4:39 pm-1:45 pm

1 stop19h 06m

$376

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/15

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.

Travel insights for flights from Ontario to South Dakota

Get recent, data-driven insights about flights from Ontario to South Dakota including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $334). Flying from Ontario to South Dakota in December is currently the most expensive (average of $446). 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 January 17, 2025.

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

Rainfall in South Dakota by month

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

In terms of precipitation, rainfall in South Dakota ranges from 0.6 - 3.9 inches per month. June is typically the wettest month, when rainfall can reach 3.9 in. January is typically the driest time to visit South Dakota when rainfall is around 0.6 in.

Temperature in South Dakota by month

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

If weather is an important factor for your trip to South Dakota, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

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 January 17, 2025.
To help decide which airline to fly from Ontario to South Dakota, see what other customers have to say about Delta and United Airlines. 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
8,511 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

United Airlines
7.4
Good
8,965 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Frontier
6.1
Okay
3,435 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Food

7.3

Overall

8.0

Comfort

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

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.

  • 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, September is the cheapest month in which you can book a flight from Ontario to South Dakota (average of $334). Flying from Ontario to South Dakota in December is currently the most expensive (average of $446). 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 January 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$244FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$278Average$464FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$507FlexibilityNo cancel feeOn-time69%
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