Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Ontario to South Dakota from $107

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to South Dakota departing on 10/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Ontario to South Dakota

Cheap round-trip flights

Frontier Logo
12:59 am - 2:02 pmONT-FSD
11h 03m1 stop
Frontier Logo
2:08 pm - 11:50 pmFSD-ONT
11h 42m1 stop
$218Frontier
Find Deal
Wed, Aug 13 - Mon, Aug 25
Frontier Logo
8:59 pm - 2:09 pmONT-FSD
15h 10m1 stop
Frontier Logo
2:54 pm - 7:54 pmFSD-ONT
7h 00m1 stop
$225Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
Frontier Logo
5:21 pm - 6:37 pmONT-FSD
23h 16m1 stop
Frontier Logo
2:08 pm - 11:50 pmFSD-ONT
11h 42m1 stop
$227Frontier
Find Deal
Thu, Aug 14 - Mon, Aug 25
Frontier Logo
12:59 am - 1:23 pmONT-FSD
10h 24m1 stop
Frontier Logo
2:08 pm - 11:50 pmFSD-ONT
11h 42m1 stop
$248Frontier
Find Deal
Wed, Aug 27 - Mon, Sep 1
American Airlines Logo
6:10 am - 4:03 pmONT-RAP
8h 53m1 stop
American Airlines Logo
4:59 pm - 10:42 pmRAP-ONT
6h 43m1 stop
$259American Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
American Airlines Logo
6:10 am - 4:03 pmONT-RAP
8h 53m1 stop
American Airlines Logo
5:32 am - 3:24 pmRAP-ONT
10h 52m2 stops
$264American Airlines
Find Deal
Fri, Oct 24 - Tue, Oct 28
Delta Logo
6:37 am - 10:36 pmONT-RAP
14h 59m2 stops
Delta Logo
6:05 am - 5:10 pmRAP-ONT
12h 05m2 stops
$269Delta
Find Deal
Fri, Oct 24 - Tue, Oct 28
United Airlines Logo
1:34 pm - 8:39 pmONT-RAP
6h 05m1 stop
United Airlines Logo
7:00 am - 12:32 pmRAP-ONT
6h 32m1 stop
$325United Airlines
Find Deal
Fri, Aug 15 - Tue, Aug 19
United Airlines Logo
5:10 am - 12:38 pmONT-RAP
6h 28m1 stop
United Airlines Logo
7:00 am - 12:32 pmRAP-ONT
6h 32m1 stop
$339United Airlines
Find Deal
Sat, Aug 23 - Wed, Sep 3
Delta Logo
11:55 am - 11:02 pmONT-FSD
9h 07m1 stop
Delta Logo
5:00 am - 12:17 pmFSD-ONT
9h 17m2 stops
$366Delta
Find Deal
Thu, Sep 11 - Mon, Sep 15

American Airlines flights from Ontario to South Dakota

Our best American Airlines deals on Ontario to South Dakota flight tickets
American Airlines
Oct 24
ONT6:10 amOntario
8h 53m
1 stop
RAP4:03 pmRapid City
Oct 28
RAP4:59 pmRapid City
6h 43m
1 stop
ONT10:42 pmOntario
$259
Find similar
American Airlines
Oct 24
ONT6:10 amOntario
8h 53m
1 stop
RAP4:03 pmRapid City
Oct 28
RAP5:32 amRapid City
10h 52m
2 stops
ONT3:24 pmOntario
$264
Find similar
American Airlines
Oct 1
ONT6:10 amOntario
6h 05m
1 stop
FSD2:15 pmSioux Falls Joe Foss Field
Oct 4
FSD1:19 pmSioux Falls Joe Foss Field
7h 35m
1 stop
ONT6:54 pmOntario
$269
Find similar

Frontier flights from Ontario to South Dakota

Our best Frontier deals on Ontario to South Dakota flight tickets
Frontier
Aug 5
ONT12:59 amOntario
15h 55m
1 stop
FSD6:54 pmSioux Falls Joe Foss Field
Aug 7
FSD2:57 pmSioux Falls Joe Foss Field
10h 53m
1 stop
ONT11:50 pmOntario
$215
Find similar
Frontier
Aug 13
ONT12:59 amOntario
11h 03m
1 stop
FSD2:02 pmSioux Falls Joe Foss Field
Aug 25
FSD2:08 pmSioux Falls Joe Foss Field
11h 42m
1 stop
ONT11:50 pmOntario
$218
Find similar
Frontier
Oct 2
ONT8:59 pmOntario
15h 10m
1 stop
FSD2:09 pmSioux Falls Joe Foss Field
Oct 6
FSD2:54 pmSioux Falls Joe Foss Field
7h 00m
1 stop
ONT7:54 pmOntario
$225
Find similar

momondo Fare Finder

 
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, momondo users made 832,500 searches. Data last updated August 2, 2025.
Use the filters below to find and compare flights from Ontario to South Dakota that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 8/13

12:59 am-2:02 pm

1 stop11h 03m

Sioux Falls Joe Foss Field

Mon 8/25

2:08 pm-11:50 pm

1 stop11h 42m

$218

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 10/2

8:59 pm-2:09 pm

1 stop15h 10m

Sioux Falls Joe Foss Field

Mon 10/6

2:54 pm-7:54 pm

1 stop7h 00m

$225

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 8/14

5:21 pm-6:37 pm

1 stop23h 16m

Sioux Falls Joe Foss Field

Mon 8/25

2:08 pm-11:50 pm

1 stop11h 42m

$227

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Wed 8/27

12:59 am-1:23 pm

1 stop10h 24m

Sioux Falls Joe Foss Field

Mon 9/1

2:08 pm-11:50 pm

1 stop11h 42m

$248

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 10/24

6:10 am-4:03 pm

1 stop8h 53m

Rapid City

Tue 10/28

4:59 pm-10:42 pm

1 stop6h 43m

$259

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 10/24

6:10 am-4:03 pm

1 stop8h 53m

Rapid City

Tue 10/28

5:32 am-3:24 pm

2 stops10h 52m

$264

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 10/24

6:37 am-10:36 pm

2 stops14h 59m

Rapid City

Tue 10/28

6:05 am-5:10 pm

2 stops12h 05m

$269

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Fri 8/15

1:34 pm-8:39 pm

1 stop6h 05m

Rapid City

Tue 8/19

7:00 am-12:32 pm

1 stop6h 32m

$325

OntarioRapid City

ONT - RAP

ONTRAP

Ontario

Sat 8/23

5:10 am-12:38 pm

1 stop6h 28m

Rapid City

Wed 9/3

7:00 am-12:32 pm

1 stop6h 32m

$339

OntarioSioux Falls

ONT - FSD

ONTFSD

Ontario

Thu 9/11

11:55 am-11:02 pm

1 stop9h 07m

Sioux Falls Joe Foss Field

Mon 9/15

5:00 am-12:17 pm

2 stops9h 17m

$366

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to South Dakota from

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

What is the cheapest day to depart on your flight to South Dakota?

The cheapest day to depart from Ontario to South Dakota is on a Monday. Travelers who choose to depart for South Dakota on a Monday will often find tickets for as low as $368. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $699. These prices are subject to change though, so be sure to set up a Price Alert for flights to South Dakota.

What is the cheapest time of day to depart on your flight to South Dakota?

The cheapest time of day to fly to South Dakota is in the afternoon when flights can be purchased for as low as $212. At noon is when there is more demand to fly to South Dakota, so prices are often more expensive at around $533 per ticket.

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

Best Price Found

$107

Fastest flight time

4h 22m

Direct flights

None

Airports in South Dakota

2 airports
The best one-way flight to South Dakota from Ontario in the past 72 hours is $107. The best round-trip flight deal from Ontario to South Dakota found on momondo in the last 72 hours is $218.
The fastest flight from Ontario to South Dakota takes 4h 22m
There are no direct flights from Ontario to South Dakota. Popular non-direct routes for this connection are Ontario Airport - Rapid City Airport and Ontario Airport - Sioux Falls Joe Foss Field Airport.
There are 2 airports near South Dakota: Rapid City (RAP), Sioux Falls Joe Foss Field (FSD)
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?

  • 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
FrontierPriceFrom $118Free CancellationRating
5.8
3,241 reviews
Search Frontier flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
8,904 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.

An easier way to manage your South Dakota trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 8/7
Thu 8/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to South Dakota

Popular cities in South Dakota

Popular flights according to clicks in the last 7 days on momondo
Flights to New Yorkfrom $48
Flights to Los Angelesfrom $37
Flights to Miamifrom $58
Flights to Chicagofrom $59
Flights to Orlandofrom $54
Flights to Las Vegasfrom $35
Flights to San Franciscofrom $61
Flights to Washington, D.C.from $48
Flights to Bostonfrom $77
Flights to Atlantafrom $29
Flights to Dallasfrom $55
Flights to Seattlefrom $93