What is the cheapest airline that flies from Ontario to South Dakota?

United Airlines and Delta are the most popular carriers operating from Ontario to South Dakota

What airlines fly to South Dakota?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to South Dakota from Ontario according to our data. United Airlines is the first choice among our users, with 67% of people opting to fly with this airline when traveling to South Dakota. Keep in mind that there are 6 different airlines that fly to South Dakota on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to South Dakota?

Prices for flights from Ontario Airport to South Dakota were last updated today.

How many operators does momondo search for flights from Ontario Airport to South Dakota?

As of March 2026, there are 3 operators available to choose from for flights from Ontario Airport to South Dakota.

How old do you have to be to fly from Ontario Airport to South Dakota?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to South Dakota.

What documentation or ID do you need to fly to South Dakota?

The travel and health documents required for your trip to South Dakota can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at South Dakota. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$156 Cheap Flights from Ontario to South Dakota in 2026

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Find the cheapest flights from Ontario to South Dakota

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:10 am - 12:50 pm

ONT

FSD

5h 40m

1 stop

9:05 am - 6:02 pm

FSD

ONT

10h 57m

2 stops

$276United Airlines

Tue, Mar 31 - Tue, Apr 7

5:00 am - 1:09 pm

ONT

RAP

7h 09m

1 stop

2:35 pm - 10:59 pm

RAP

ONT

9h 24m

2 stops

$284United Airlines

Wed, May 6 - Sat, May 9

5:10 am - 12:50 pm

ONT

FSD

5h 40m

1 stop

9:05 am - 12:38 pm

FSD

ONT

5h 33m

1 stop

$285United Airlines

Tue, Mar 31 - Tue, Apr 7

5:02 pm - 11:58 pm

ONT

FSD

4h 56m

1 stop

2:57 pm - 7:09 pm

FSD

ONT

6h 12m

1 stop

$289American Airlines

Fri, Apr 3 - Mon, Apr 6

6:15 am - 7:59 pm

ONT

FSD

11h 44m

1 stop

8:54 pm - 11:59 pm

FSD

ONT

5h 05m

1 stop

$295Frontier

Fri, Mar 13 - Mon, Mar 16

5:00 am - 12:34 pm

ONT

FSD

5h 34m

1 stop

9:00 am - 12:38 pm

FSD

ONT

5h 38m

1 stop

$318United Airlines

Sun, May 3 - Tue, May 12

10:59 am - 9:54 pm

ONT

FSD

8h 55m

1 stop

1:41 pm - 8:54 pm

FSD

ONT

9h 13m

1 stop

$320American Airlines

Fri, Apr 10 - Tue, Apr 14

5:10 am - 12:50 pm

ONT

FSD

5h 40m

1 stop

9:05 am - 12:38 pm

FSD

ONT

5h 33m

1 stop

$327United Airlines

Sat, Apr 18 - Mon, Apr 20

7:40 pm - 6:31 pm

ONT

FSD

20h 51m

2 stops

2:35 pm - 6:49 pm

FSD

ONT

6h 14m

1 stop

$346Multiple Airlines

Sun, Apr 12 - Wed, Apr 15

5:12 pm - 7:11 pm

ONT

FSD

23h 59m

1 stop

2:26 pm - 6:34 pm

FSD

ONT

30h 08m

2 stops

$347Multiple Airlines

Sun, May 3 - Tue, May 12

United Airlines flights from Ontario to South Dakota

Our best United Airlines deals on Ontario to South Dakota flight tickets

United Airlines

Mar 31

ONT5:10 amOntario

5h 40m

1 stop

FSD12:50 pmSioux Falls Joe Foss Field

Apr 7

FSD9:05 amSioux Falls Joe Foss Field

10h 57m

2 stops

ONT6:02 pmOntario

$276

United Airlines

May 6

ONT5:00 amOntario

7h 09m

1 stop

RAP1:09 pmRapid City

May 9

RAP2:35 pmRapid City

9h 24m

2 stops

ONT10:59 pmOntario

$284

United Airlines

Mar 31

ONT5:10 amOntario

5h 40m

1 stop

FSD12:50 pmSioux Falls Joe Foss Field

Apr 7

FSD9:05 amSioux Falls Joe Foss Field

5h 33m

1 stop

ONT12:38 pmOntario

$285

American Airlines flights from Ontario to South Dakota

Our best American Airlines deals on Ontario to South Dakota flight tickets

American Airlines

Apr 3

ONT5:02 pmOntario

4h 56m

1 stop

FSD11:58 pmSioux Falls Joe Foss Field

Apr 6

FSD2:57 pmSioux Falls Joe Foss Field

6h 12m

1 stop

ONT7:09 pmOntario

$289

American Airlines

Apr 10

ONT10:59 amOntario

8h 55m

1 stop

FSD9:54 pmSioux Falls Joe Foss Field

Apr 14

FSD1:41 pmSioux Falls Joe Foss Field

9h 13m

1 stop

ONT8:54 pmOntario

$320

American Airlines

Mar 17

ONT5:02 pmOntario

4h 56m

1 stop

FSD11:58 pmSioux Falls Joe Foss Field

Mar 21

FSD2:42 pmSioux Falls Joe Foss Field

6h 25m

1 stop

ONT7:07 pmOntario

$339

Fly from

Fly to

Route

Depart

Return

Price

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 3/31

5:10 am-12:50 pm

1 stop5h 40m

Sioux Falls Joe Foss Field

Tue 4/7

9:05 am-6:02 pm

2 stops10h 57m

$276

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Wed 5/6

5:00 am-1:09 pm

1 stop7h 09m

Rapid City

Sat 5/9

2:35 pm-10:59 pm

2 stops9h 24m

$284

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Tue 3/31

5:10 am-12:50 pm

1 stop5h 40m

Sioux Falls Joe Foss Field

Tue 4/7

9:05 am-12:38 pm

1 stop5h 33m

$285

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 4/3

5:02 pm-11:58 pm

1 stop4h 56m

Sioux Falls Joe Foss Field

Mon 4/6

2:57 pm-7:09 pm

1 stop6h 12m

$289

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 3/13

6:15 am-7:59 pm

1 stop11h 44m

Sioux Falls Joe Foss Field

Mon 3/16

8:54 pm-11:59 pm

1 stop5h 05m

$295

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 5/3

5:00 am-12:34 pm

1 stop5h 34m

Sioux Falls Joe Foss Field

Tue 5/12

9:00 am-12:38 pm

1 stop5h 38m

$318

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 4/10

10:59 am-9:54 pm

1 stop8h 55m

Sioux Falls Joe Foss Field

Tue 4/14

1:41 pm-8:54 pm

1 stop9h 13m

$320

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sat 4/18

5:10 am-12:50 pm

1 stop5h 40m

Sioux Falls Joe Foss Field

Mon 4/20

9:05 am-12:38 pm

1 stop5h 33m

$327

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 4/12

7:40 pm-6:31 pm

2 stops20h 51m

Sioux Falls Joe Foss Field

Wed 4/15

2:35 pm-6:49 pm

1 stop6h 14m

$346

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Sun 5/3

5:12 pm-7:11 pm

1 stop23h 59m

Sioux Falls Joe Foss Field

Tue 5/12

2:26 pm-6:34 pm

2 stops30h 08m

$347

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to South Dakota

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to South Dakota?

The month of October is, on average, the cheapest month to fly to South Dakota from Ontario, with most prices found around $230. If you aren’t able to travel to South Dakota during the month of October, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $319.

Cheap Ontario to South Dakota flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to South Dakota

Fastest flight time	4h 50m
Direct flights	None

The fastest flight from Ontario to South Dakota takes 4h 50m

There are no direct flights from Ontario to South Dakota. There are no popular flight routes from Ontario to South Dakota.

Search flight deals

When did momondo last update prices for flights from Ontario Airport to South Dakota?
Prices for flights from Ontario Airport to South Dakota were last updated today.
How many operators does momondo search for flights from Ontario Airport to South Dakota?
As of March 2026, there are 3 operators available to choose from for flights from Ontario Airport to South Dakota.
How old do you have to be to fly from Ontario Airport to South Dakota?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to South Dakota.
What documentation or ID do you need to fly to South Dakota?
The travel and health documents required for your trip to South Dakota can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at South Dakota. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to South Dakota

Compare and see reviews for airlines that fly from Ontario to South Dakota with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $65	Free Cancellation	Rating 5.7 3,041 reviews	Search Frontier flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,375 reviews	Search American Airlines flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,378 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to South Dakota?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Ontario to South Dakota. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Ontario to South Dakota with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Ontario to South Dakota flights to just show those with flexible booking policies.

How can momondo help me find flights from Ontario to South Dakota?

momondo provides multiple filters to help you find the best flight to South Dakota from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to South Dakota right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to South Dakota flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.