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

Frontier, 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 65% 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 May 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.

$105 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.

10:50 am - 7:19 pm

ONT

FSD

6h 29m

1 stop

8:14 pm - 11:49 pm

FSD

ONT

5h 35m

1 stop

$224Frontier

Wed, Aug 26 - Mon, Aug 31

6:00 am - 3:40 pm

ONT

FSD

7h 40m

1 stop

8:14 pm - 11:50 pm

FSD

ONT

5h 36m

1 stop

$244Frontier

Mon, Jun 8 - Mon, Jul 6

6:00 am - 7:19 pm

ONT

FSD

11h 19m

1 stop

8:14 pm - 11:49 pm

FSD

ONT

5h 35m

1 stop

$250Frontier

Wed, Jun 10 - Fri, Jun 19

6:00 am - 3:40 pm

ONT

FSD

7h 40m

1 stop

4:25 pm - 11:49 pm

FSD

ONT

9h 24m

1 stop

$254Frontier

Fri, May 29 - Mon, Jun 1

6:00 am - 3:40 pm

ONT

FSD

7h 40m

1 stop

8:14 pm - 11:50 pm

FSD

ONT

5h 36m

1 stop

$264Frontier

Mon, Jun 8 - Fri, Jul 10

11:43 am - 9:00 pm

ONT

RAP

8h 17m

1 stop

9:50 pm - 3:07 pm

RAP

ONT

18h 17m

1 stop

$299Multiple Airlines

Thu, Jul 16 - Sun, Jul 19

4:59 pm - 11:52 pm

ONT

FSD

4h 53m

1 stop

5:54 pm - 11:06 pm

FSD

ONT

7h 12m

1 stop

$311American Airlines

Wed, Sep 23 - Wed, Sep 30

6:10 am - 12:11 pm

ONT

RAP

5h 01m

1 stop

11:44 am - 6:21 pm

RAP

ONT

7h 37m

1 stop

$319American Airlines

Thu, Jun 25 - Tue, Jun 30

6:10 am - 12:10 pm

ONT

RAP

5h 00m

1 stop

11:44 am - 6:19 pm

RAP

ONT

7h 35m

1 stop

$334American Airlines

Fri, Jul 10 - Tue, Jul 14

11:03 pm - 10:49 am

ONT

RAP

10h 46m

1 stop

11:41 am - 5:48 pm

RAP

ONT

7h 07m

1 stop

$340American Airlines

Sat, Sep 26 - Sat, Oct 3

American Airlines flights from Ontario to South Dakota

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

American Airlines

Sep 23

ONT4:59 pmOntario

4h 53m

1 stop

FSD11:52 pmSioux Falls Joe Foss Field

Sep 30

FSD5:54 pmSioux Falls Joe Foss Field

7h 12m

1 stop

ONT11:06 pmOntario

$311

American Airlines

Jun 25

ONT6:10 amOntario

5h 01m

1 stop

RAP12:11 pmRapid City

Jun 30

RAP11:44 amRapid City

7h 37m

1 stop

ONT6:21 pmOntario

$319

American Airlines

Jul 10

ONT6:10 amOntario

5h 00m

1 stop

RAP12:10 pmRapid City

Jul 14

RAP11:44 amRapid City

7h 35m

1 stop

ONT6:19 pmOntario

$334

United Airlines flights from Ontario to South Dakota

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

United Airlines

May 26

ONT5:00 amOntario

5h 15m

1 stop

FSD12:15 pmSioux Falls Joe Foss Field

May 30

FSD9:30 amSioux Falls Joe Foss Field

5h 08m

1 stop

ONT12:38 pmOntario

$399

United Airlines

May 26

ONT5:00 amOntario

5h 15m

1 stop

FSD12:15 pmSioux Falls Joe Foss Field

May 30

FSD6:00 amSioux Falls Joe Foss Field

13h 56m

2 stops

ONT5:56 pmOntario

$404

United Airlines

Sep 23

ONT5:00 amOntario

6h 24m

1 stop

RAP12:24 pmRapid City

Sep 30

RAP10:26 amRapid City

13h 33m

2 stops

ONT10:59 pmOntario

$414

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 8/26

10:50 am-7:19 pm

1 stop6h 29m

Sioux Falls Joe Foss Field

Mon 8/31

8:14 pm-11:49 pm

1 stop5h 35m

$224

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 6/8

6:00 am-3:40 pm

1 stop7h 40m

Sioux Falls Joe Foss Field

Mon 7/6

8:14 pm-11:50 pm

1 stop5h 36m

$244

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 6/10

6:00 am-7:19 pm

1 stop11h 19m

Sioux Falls Joe Foss Field

Fri 6/19

8:14 pm-11:49 pm

1 stop5h 35m

$250

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Fri 5/29

6:00 am-3:40 pm

1 stop7h 40m

Sioux Falls Joe Foss Field

Mon 6/1

4:25 pm-11:49 pm

1 stop9h 24m

$254

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Mon 6/8

6:00 am-3:40 pm

1 stop7h 40m

Sioux Falls Joe Foss Field

Fri 7/10

8:14 pm-11:50 pm

1 stop5h 36m

$264

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 7/16

11:43 am-9:00 pm

1 stop8h 17m

Rapid City

Sun 7/19

9:50 pm-3:07 pm

1 stop18h 17m

$299

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 9/23

4:59 pm-11:52 pm

1 stop4h 53m

Sioux Falls Joe Foss Field

Wed 9/30

5:54 pm-11:06 pm

1 stop7h 12m

$311

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Thu 6/25

6:10 am-12:11 pm

1 stop5h 01m

Rapid City

Tue 6/30

11:44 am-6:21 pm

1 stop7h 37m

$319

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 7/10

6:10 am-12:10 pm

1 stop5h 00m

Rapid City

Tue 7/14

11:44 am-6:19 pm

1 stop7h 35m

$334

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 9/26

11:03 pm-10:49 am

1 stop10h 46m

Rapid City

Sat 10/3

11:41 am-5:48 pm

1 stop7h 07m

$340

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 $117. If you aren’t able to travel to South Dakota during the month of October, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $179.

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

Frequently asked questions about flying from Ontario to South Dakota

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 May 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 $117	Free Cancellation	Rating 5.6 2,951 reviews	Search Frontier flights
American Airlines	PriceFrom $258	Free Cancellation	Rating 7.1 11,662 reviews	Search American Airlines flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.4 9,723 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.