What airlines fly to Ontario?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Ontario from South Dakota according to our data. United Airlines is the first choice among our users, with 60% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 4 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Average flight duration from South Dakota to Ontario depends on which airport you fly into and out of. Flying from Rapid City to Los Angeles is 5h 10m on average, while flying from Sioux Falls to Los Angeles is 5h 32m on average. Los Angeles is the most popular airport in Ontario.

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from South Dakota to Ontario

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

Prices for flights from South Dakota to Ontario Airport refresh daily.

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

As of August 2026, there are 2 operators available to choose from for flights from South Dakota to Ontario Airport.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$117 Cheap Flights from South Dakota to Ontario in 2026

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7:31 pm - 11:55 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

6h 24m1 stop Denver Intl

6:00 am - 6:36 pmONT Ontario-FSD Sioux Falls Joe Foss Field

10h 36m1 stop Denver Intl

$222Frontier

Wed, Oct 21 - Sat, Oct 24

8:52 pm - 11:47 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

4h 55m1 stop Denver Intl

11:38 am - 6:36 pmONT Ontario-FSD Sioux Falls Joe Foss Field

4h 58m1 stop Denver Intl

$231Frontier

Fri, Oct 2 - Sat, Oct 10

7:31 pm - 11:55 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

6h 24m1 stop Denver Intl

6:00 am - 6:36 pmONT Ontario-FSD Sioux Falls Joe Foss Field

10h 36m1 stop Denver Intl

$231Frontier

Wed, Oct 14 - Mon, Oct 19

8:52 pm - 11:47 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

4h 55m1 stop Denver Intl

11:45 am - 8:07 pmONT Ontario-FSD Sioux Falls Joe Foss Field

6h 22m1 stop Denver Intl

$240Frontier

Mon, Sep 14 - Fri, Sep 18

1:08 pm - 6:47 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

7h 39m1 stop Dallas/Fort Worth

4:49 pm - 11:44 pmONT Ontario-FSD Sioux Falls Joe Foss Field

4h 55m1 stop Phoenix Sky Harbor Intl

$321American Airlines

Sat, Dec 12 - Sat, Jan 9

5:54 pm - 11:52 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

7h 58m1 stop Dallas/Fort Worth

6:15 am - 1:35 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 20m1 stop Phoenix Sky Harbor Intl

$321American Airlines

Wed, Oct 21 - Sat, Oct 24

1:45 pm - 11:06 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

11h 21m2 stops Denver Intl San Francisco

1:00 pm - 8:46 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 46m1 stop Denver Intl

$326United Airlines

Sat, Dec 12 - Sat, Jan 9

8:05 am - 12:14 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

6h 09m1 stop Phoenix Sky Harbor Intl

4:25 pm - 11:49 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 24m1 stop Phoenix Sky Harbor Intl

$330American Airlines

Wed, Oct 28 - Sun, Nov 1

5:06 pm - 8:51 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

5h 45m1 stop Denver Intl

5:00 am - 12:35 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 35m1 stop Denver Intl

$348United Airlines

Wed, Oct 28 - Mon, Nov 2

5:55 am - 12:29 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

8h 34m2 stops Denver Intl San Francisco

5:00 am - 12:35 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 35m1 stop Denver Intl

$353United Airlines

Wed, Oct 28 - Mon, Nov 2

Cheap last minute flights

Enter your travel dates to find the best prices.

9:35 am - 12:50 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

5h 15m1 stop Denver Intl

5:00 am - 12:39 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 39m1 stop Denver Intl

$542United Airlines

Tue, Aug 18 - Sun, Aug 23

6:00 am - 12:12 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

8h 12m2 stops Denver Intl San Francisco

5:00 am - 12:39 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 39m1 stop Denver Intl

$547United Airlines

Tue, Aug 18 - Sun, Aug 23

9:35 am - 12:50 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

5h 15m1 stop Denver Intl

5:00 am - 12:39 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 39m1 stop Denver Intl

$599United Airlines

Thu, Aug 20 - Sun, Aug 23

1:33 pm - 10:59 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

11h 26m2 stops Denver Intl San Francisco

5:00 am - 12:39 pmONT Ontario-FSD Sioux Falls Joe Foss Field

5h 39m1 stop Denver Intl

$604United Airlines

Thu, Aug 20 - Sun, Aug 23

9:35 am - 6:11 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

10h 36m2 stops Denver Intl San Francisco

6:08 am - 8:07 pmONT Ontario-FSD Sioux Falls Joe Foss Field

11h 59m2 stops San Francisco Denver Intl

$678United Airlines

Tue, Aug 18 - Sun, Aug 23

1:33 pm - 10:59 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

11h 26m2 stops Denver Intl San Francisco

6:08 am - 8:07 pmONT Ontario-FSD Sioux Falls Joe Foss Field

11h 59m2 stops San Francisco Denver Intl

$685United Airlines

Thu, Aug 20 - Sun, Aug 23

8:55 am - 12:50 pmRAP Rapid City-ONT Ontario

4h 55m1 stop Denver Intl

5:00 am - 11:55 amONT Ontario-RAP Rapid City

5h 55m1 stop Denver Intl

$803United Airlines

Sun, Aug 16 - Tue, Aug 18

11:22 am - 8:13 pmRAP Rapid City-ONT Ontario

9h 51m2 stops Denver Intl San Francisco

5:00 am - 12:24 pmONT Ontario-RAP Rapid City

6h 24m1 stop Denver Intl

$808United Airlines

Sun, Aug 16 - Tue, Aug 18

5:05 pm - 8:53 pmFSD Sioux Falls Joe Foss Field-ONT Ontario

5h 48m1 stop Denver Intl

1:18 pm - 8:07 pmONT Ontario-FSD Sioux Falls Joe Foss Field

4h 49m1 stop Denver Intl

$812United Airlines

Mon, Aug 17 - Wed, Aug 19

8:55 am - 6:11 pmRAP Rapid City-ONT Ontario

10h 16m2 stops Denver Intl San Francisco

9:01 am - 8:37 pmONT Ontario-RAP Rapid City

10h 36m2 stops San Francisco Denver Intl

$813United Airlines

Sun, Aug 16 - Tue, Aug 18

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Frontier flights from South Dakota to Ontario

Our best Frontier deals on South Dakota to Ontario flight tickets

Frontier

Oct 21

FSD7:31 pmSioux Falls Joe Foss Field

6h 24m

1 stop

ONT11:55 pmOntario

Oct 24

ONT6:00 amOntario

10h 36m

1 stop

FSD6:36 pmSioux Falls Joe Foss Field

$222

Frontier

Oct 2

FSD8:52 pmSioux Falls Joe Foss Field

4h 55m

1 stop

ONT11:47 pmOntario

Oct 10

ONT11:38 amOntario

4h 58m

1 stop

FSD6:36 pmSioux Falls Joe Foss Field

$231

Frontier

Sep 14

FSD8:52 pmSioux Falls Joe Foss Field

4h 55m

1 stop

ONT11:47 pmOntario

Sep 18

ONT11:45 amOntario

6h 22m

1 stop

FSD8:07 pmSioux Falls Joe Foss Field

$240

United Airlines flights from South Dakota to Ontario

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

United Airlines

Dec 12

FSD1:45 pmSioux Falls Joe Foss Field

11h 21m

2 stops

ONT11:06 pmOntario

Jan 9

ONT1:00 pmOntario

5h 46m

1 stop

FSD8:46 pmSioux Falls Joe Foss Field

$326

United Airlines

Oct 28

FSD5:06 pmSioux Falls Joe Foss Field

5h 45m

1 stop

ONT8:51 pmOntario

Nov 2

ONT5:00 amOntario

5h 35m

1 stop

FSD12:35 pmSioux Falls Joe Foss Field

$348

United Airlines

Oct 28

FSD5:55 amSioux Falls Joe Foss Field

8h 34m

2 stops

ONT12:29 pmOntario

Nov 2

ONT5:00 amOntario

5h 35m

1 stop

FSD12:35 pmSioux Falls Joe Foss Field

$353

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/21

7:31 pm-11:55 pm

1 stop6h 24m

Ontario

Sat 10/24

6:00 am-6:36 pm

1 stop10h 36m

$222

Quickest round-trip

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Fri 10/2

8:52 pm-11:47 pm

1 stop4h 55m

Ontario

Sat 10/10

11:38 am-6:36 pm

1 stop4h 58m

$231

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/14

7:31 pm-11:55 pm

1 stop6h 24m

Ontario

Mon 10/19

6:00 am-6:36 pm

1 stop10h 36m

$231

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Mon 9/14

8:52 pm-11:47 pm

1 stop4h 55m

Ontario

Fri 9/18

11:45 am-8:07 pm

1 stop6h 22m

$240

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Sat 12/12

1:08 pm-6:47 pm

1 stop7h 39m

Ontario

Sat 1/9

4:49 pm-11:44 pm

1 stop4h 55m

$321

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/21

5:54 pm-11:52 pm

1 stop7h 58m

Ontario

Sat 10/24

6:15 am-1:35 pm

1 stop5h 20m

$321

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Sat 12/12

1:45 pm-11:06 pm

2 stops11h 21m

Ontario

Sat 1/9

1:00 pm-8:46 pm

1 stop5h 46m

$326

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/28

8:05 am-12:14 pm

1 stop6h 09m

Ontario

Sun 11/1

4:25 pm-11:49 pm

1 stop5h 24m

$330

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/28

5:06 pm-8:51 pm

1 stop5h 45m

Ontario

Mon 11/2

5:00 am-12:35 pm

1 stop5h 35m

$348

Sioux FallsOntario

FSD Sioux Falls Joe Foss Field - ONT Ontario

FSDONT

Sioux Falls Joe Foss Field

Wed 10/28

5:55 am-12:29 pm

2 stops8h 34m

Ontario

Mon 11/2

5:00 am-12:35 pm

1 stop5h 35m

$353

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 South Dakota to Ontario

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

Other information

What is the cheapest month to fly to Ontario?

In general, September is the cheapest month to fly from South Dakota to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you aren’t able to travel during the month of September, then book flights to Ontario from South Dakota during August instead. Flights to Ontario in August, while not as cheap as those in September, still average around $350.

Can stopping save me money on South Dakota to Ontario flights?

You could potentially save up to 41% on your flight if you consider stops on a South Dakota to Ontario flight.

Cheap South Dakota to Ontario flight deals and tips

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

Fastest flight time	4h 54m
Direct flights	None

The fastest flight from South Dakota to Ontario takes 4h 54m

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

Search flight deals

Frequently asked questions about flying from South Dakota to Ontario

When did momondo last update prices for flights from South Dakota to Ontario Airport?
Prices for flights from South Dakota to Ontario Airport refresh daily.
How many operators does momondo search for flights from South Dakota to Ontario Airport?
As of August 2026, there are 2 operators available to choose from for flights from South Dakota to Ontario Airport.
How old do you have to be to fly from South Dakota to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from South Dakota to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from South Dakota to Ontario

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $236	Free Cancellation	Rating 7.4 10,111 reviews		Search United Airlines flights
American Airlines	PriceFrom $362	Free Cancellation	Rating 7.1 11,941 reviews		Search American Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from South Dakota to Ontario. momondo saves you time and could save you money on your trip.

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

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

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

Once you have performed a search for South Dakota to Ontario flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Of course. momondo tracks the price of South Dakota to Ontario flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Cheap flights from South Dakota to Los Angeles from $117

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Dakota to Los Angeles departing on 9/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Frontier flights from South Dakota to Ontario

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

What is the cheapest month to fly to Ontario?

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

What airlines fly to Ontario?

How long does it take to fly to Ontario?

Cheap South Dakota to Ontario flight deals and tips

Fastest flight time

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Frequently asked questions about flying from South Dakota to Ontario

Best airlines flying from South Dakota to Ontario

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

Why use momondo?

An easier way to manage your Ontario 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California

Fly your favorite airline to Los Angeles

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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