HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$121+ 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 7/20. Fares are subject to change and may not be available on all flights or dates of travel.
FSD — ONT
may. 20 — may. 271
mar. 5/20
mar. 5/27
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from South Dakota to Ontario with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 mayo 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$183
(CheapOair)

One-way from

$121
(Frontier)

Popular in

November

Cheapest in

August

Average price

$373
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. 10% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2025
Search Deals

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 mayo 15, 2025.

This CheapOair deal was found by Cheapflights users on 5/15. 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.
lun. 7/217:27 pmFSD - ONT
1 stop6h 23mFrontier
mar. 7/2912:59 amONT - FSD
1 stop15h 55mFrontier
Deal found 5/15$183
This American Airlines deal was found by Cheapflights users on 5/15. 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.
vie. 7/185:11 pmFSD - ONT
1 stop7h 46mAmerican Airlines
sáb. 7/266:15 amONT - FSD
1 stop5h 57mAmerican Airlines
Deal found 5/15$269
This Delta deal was found by Cheapflights users on 5/15. 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.
jue. 7/173:16 pmFSD - ONT
2 stops10h 26mDelta
lun. 7/281:15 pmONT - FSD
2 stops8h 29mDelta
Deal found 5/15$279
This United Airlines deal was found by Cheapflights users on 5/15. 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.
sáb. 9/273:27 pmRAP - ONT
1 stop6h 06mUnited Airlines
mar. 9/301:15 pmONT - RAP
1 stop4h 23mUnited Airlines
Deal found 5/15$339
This United Airlines deal was found by Cheapflights users on 5/15. 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.
vie. 9/2611:19 amFSD - ONT
2 stops11h 14mUnited Airlines
lun. 9/291:15 pmONT - FSD
1 stop5h 06mUnited Airlines
Deal found 5/15$354
This American Airlines deal was found by Cheapflights users on 5/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/164:35 pmRAP - ONT
1 stop8h 08mAmerican Airlines
mar. 5/207:30 amONT - RAP
1 stop7h 34mAmerican Airlines
Deal found 5/14$389
This Delta deal was found by Cheapflights users on 5/15. 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.
lun. 6/306:35 amRAP - ONT
2 stops10h 53mDelta
mar. 7/11:15 pmONT - RAP
2 stops8h 16mDelta
Deal found 5/15$1,512

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 mayo 15, 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

lun. 7/21

7:27 pm-11:50 pm

1 stop6h 23m

Ontario

mar. 7/29

12:59 am-6:54 pm

1 stop15h 55m

$183

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

vie. 7/18

5:11 pm-10:57 pm

1 stop7h 46m

Ontario

sáb. 7/26

6:15 am-2:12 pm

1 stop5h 57m

$269

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

jue. 7/17

3:16 pm-11:42 pm

2 stops10h 26m

Ontario

lun. 7/28

1:15 pm-11:44 pm

2 stops8h 29m

$279

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

vie. 9/26

11:19 am-8:33 pm

2 stops11h 14m

Ontario

lun. 9/29

1:15 pm-8:21 pm

1 stop5h 06m

$354

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

sáb. 6/28

5:30 am-12:14 pm

2 stops7h 44m

Ontario

dom. 7/6

5:05 am-12:46 pm

1 stop6h 41m

$385

AberdeenOntario

ABR - ONT

ABRONT

Aberdeen

mié. 6/4

2:41 pm-11:42 pm

2 stops11h 01m

Ontario

mié. 6/11

3:09 pm-2:05 pm

2 stops20h 56m

$587

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

lun. 6/30

6:35 am-4:28 pm

2 stops10h 53m

Ontario

mar. 7/1

1:15 pm-10:31 pm

2 stops8h 16m

$1,512

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

dom. 7/20

2:57 pm-11:50 pm

1 stop10h 53m

$121

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

dom. 6/29

5:30 am-12:14 pm

2 stops7h 44m

$224

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

sáb. 8/9

9:15 am-5:25 pm

1 stop10h 10m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/14

Showing 1-10 of 12 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 $328). 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 mayo 15, 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 mayo 15, 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
7,946 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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
8,731 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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
7,946 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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
3,284 reviews
Delta
8.0
Very good
7,946 reviews

Comfort

7.9

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

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 $121. However, be on the lookout for offers from United Airlines and Delta, 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 $328). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for South Dakota to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Los Angeles flights
Newark to Las Vegas flights
Newark to Los Angeles flights
John F Kennedy Intl to Las Vegas flights
Seattle to Los Angeles flights
John F Kennedy Intl to San Francisco flights
Dallas/Fort Worth to Las Vegas flights
Newark to San Francisco flights
LaGuardia to Las Vegas flights
LaGuardia to Los Angeles flights
San Jose to Los Angeles flights
Hobby to Las Vegas flights
Los Angeles to Las Vegas flights
O'Hare Intl to Las Vegas flights
Dallas/Fort Worth to Los Angeles flights
Santa Ana to Las Vegas flights
Denver to Las Vegas flights
Los Angeles to San Jose flights
Seattle to Las Vegas flights
Dulles Intl to Los Angeles flights
Burbank to Las Vegas flights
Los Angeles to San Francisco flights
Dallas/Fort Worth to San Francisco flights
Boston to Los Angeles flights
San Francisco to Los Angeles flights
George Bush Intcntl to Las Vegas flights
LaGuardia to San Francisco flights
Boston to Las Vegas flights
Oakland to Las Vegas flights
Los Angeles to Oakland flights
Oakland to Los Angeles flights
Dulles Intl to San Francisco flights
Dulles Intl to Las Vegas flights
John F Kennedy Intl to Ontario flights
Reagan-National to Los Angeles flights
San Francisco to Las Vegas flights
Seattle to Ontario flights
John F Kennedy Intl to San Diego flights
Seattle to San Diego flights
Santa Ana to Oakland flights
Seattle to Santa Ana flights
Midway to Las Vegas flights
Reagan-National to Las Vegas flights
Atlanta to Las Vegas flights
O'Hare Intl to Los Angeles flights
Baltimore to Las Vegas flights
Newark to Burbank flights
Reagan-National to San Francisco flights
Detroit to Las Vegas flights
San Jose to Las Vegas flights

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 mayo 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$113Average$259FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$268Average$463FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$392FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.