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Cheap flights from South Dakota to Los Angeles from $125

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 6/8. 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

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Find the cheapest flights from South Dakota to Los Angeles

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
8:14 pm - 11:50 pm
FSD
-
ONT
5h 36m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$230Frontier
Fri, Jul 31 - Wed, Aug 5
Frontier Logo
8:14 pm - 10:05 am
FSD
-
ONT
15h 51m
1 stop
Frontier Logo
6:00 am - 7:23 pm
ONT
-
FSD
11h 23m
1 stop
$240Frontier
Wed, Jul 1 - Mon, Jul 13
Multiple Airlines Logo
9:54 pm - 3:08 pm
RAP
-
ONT
18h 14m
1 stop
Multiple Airlines Logo
3:40 pm - 9:00 pm
ONT
-
RAP
28h 20m
1 stop
$246Multiple Airlines
Sun, Jun 28 - Wed, Jul 8
Multiple Airlines Logo
9:54 pm - 3:08 pm
RAP
-
ONT
18h 14m
1 stop
Multiple Airlines Logo
3:40 pm - 9:00 pm
ONT
-
RAP
28h 20m
1 stop
$247Multiple Airlines
Sun, Jun 28 - Wed, Jul 15
Frontier Logo
8:14 pm - 11:49 pm
FSD
-
ONT
5h 35m
1 stop
Frontier Logo
10:49 am - 7:23 pm
ONT
-
FSD
6h 34m
1 stop
$250Frontier
Fri, Jul 3 - Mon, Jul 6
Multiple Airlines Logo
9:54 pm - 3:08 pm
RAP
-
ONT
18h 14m
1 stop
Multiple Airlines Logo
3:40 pm - 9:00 pm
ONT
-
RAP
28h 20m
1 stop
$252Multiple Airlines
Thu, Jun 25 - Wed, Jul 8
Multiple Airlines Logo
9:54 pm - 3:08 pm
RAP
-
ONT
18h 14m
1 stop
Multiple Airlines Logo
3:40 pm - 9:00 pm
ONT
-
RAP
28h 20m
1 stop
$253Multiple Airlines
Thu, Jun 25 - Wed, Jul 8
American Airlines Logo
12:25 pm - 6:57 pm
FSD
-
ONT
8h 32m
1 stop
American Airlines Logo
12:35 pm - 9:55 pm
ONT
-
FSD
7h 20m
1 stop
$311American Airlines
Wed, Sep 23 - Sat, Sep 26
American Airlines Logo
5:54 pm - 11:06 pm
FSD
-
ONT
7h 12m
1 stop
American Airlines Logo
1:31 pm - 11:51 pm
ONT
-
FSD
8h 20m
2 stops
$316American Airlines
Wed, Sep 23 - Sat, Sep 26
American Airlines Logo
5:54 pm - 11:06 pm
FSD
-
ONT
7h 12m
1 stop
American Airlines Logo
1:31 pm - 11:51 pm
ONT
-
FSD
8h 20m
2 stops
$321American Airlines
Wed, Sep 23 - Sat, Sep 26

United Airlines flights from South Dakota to Ontario

Our best United Airlines deals on South Dakota to Ontario flight tickets
United Airlines
Jun 30
RAP7:00 amRapid City
6h 47m
1 stop
ONT12:47 pmOntario
Jul 15
ONT5:00 amOntario
6h 29m
1 stop
RAP12:29 pmRapid City
$319
United Airlines
Jun 30
RAP5:00 amRapid City
8h 12m
2 stops
ONT12:12 pmOntario
Jul 15
ONT5:00 amOntario
6h 29m
1 stop
RAP12:29 pmRapid City
$393
United Airlines
Aug 26
FSD9:35 amSioux Falls Joe Foss Field
5h 15m
1 stop
ONT12:50 pmOntario
Aug 29
ONT5:00 amOntario
5h 39m
1 stop
FSD12:39 pmSioux Falls Joe Foss Field
$401

Frontier flights from South Dakota to Ontario

Our best Frontier deals on South Dakota to Ontario flight tickets
Frontier
Jul 31
FSD8:14 pmSioux Falls Joe Foss Field
5h 36m
1 stop
ONT11:50 pmOntario
Aug 5
ONT6:00 amOntario
11h 23m
1 stop
FSD7:23 pmSioux Falls Joe Foss Field
$230
Frontier
Jul 1
FSD8:14 pmSioux Falls Joe Foss Field
15h 51m
1 stop
ONT10:05 amOntario
Jul 13
ONT6:00 amOntario
11h 23m
1 stop
FSD7:23 pmSioux Falls Joe Foss Field
$240
Frontier
Jul 3
FSD8:14 pmSioux Falls Joe Foss Field
5h 35m
1 stop
ONT11:49 pmOntario
Jul 6
ONT10:49 amOntario
6h 34m
1 stop
FSD7:23 pmSioux Falls Joe Foss Field
$250

momondo 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, momondo users made 832,500 searches. Data last updated May 12, 2026.
Use the filters below to find and compare flights from South Dakota to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 7/31

8:14 pm-11:50 pm

1 stop5h 36m

Ontario

Wed 8/5

6:00 am-7:23 pm

1 stop11h 23m

$230

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 7/1

8:14 pm-10:05 am

1 stop15h 51m

Ontario

Mon 7/13

6:00 am-7:23 pm

1 stop11h 23m

$240

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sun 6/28

9:54 pm-3:08 pm

1 stop18h 14m

Ontario

Wed 7/8

3:40 pm-9:00 pm

1 stop28h 20m

$246

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Sun 6/28

9:54 pm-3:08 pm

1 stop18h 14m

Ontario

Wed 7/15

3:40 pm-9:00 pm

1 stop28h 20m

$247
Quickest round-trip

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Fri 7/3

8:14 pm-11:49 pm

1 stop5h 35m

Ontario

Mon 7/6

10:49 am-7:23 pm

1 stop6h 34m

$250

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 6/25

9:54 pm-3:08 pm

1 stop18h 14m

Ontario

Wed 7/8

3:40 pm-9:00 pm

1 stop28h 20m

$252

Rapid CityOntario

RAP - ONT

RAPONT

Rapid City

Thu 6/25

9:54 pm-3:08 pm

1 stop18h 14m

Ontario

Wed 7/8

3:40 pm-9:00 pm

1 stop28h 20m

$253

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 9/23

12:25 pm-6:57 pm

1 stop8h 32m

Ontario

Sat 9/26

12:35 pm-9:55 pm

1 stop7h 20m

$311

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 9/23

5:54 pm-11:06 pm

1 stop7h 12m

Ontario

Sat 9/26

1:31 pm-11:51 pm

2 stops8h 20m

$316

Sioux FallsOntario

FSD - ONT

FSDONT

Sioux Falls Joe Foss Field

Wed 9/23

5:54 pm-11:06 pm

1 stop7h 12m

Ontario

Sat 9/26

1:31 pm-11:51 pm

2 stops8h 20m

$321

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

What is the cheapest month to fly to Ontario?

In general, August 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 $182. If you aren’t able to travel during the month of August, then book flights to Ontario from South Dakota during October instead. Flights to Ontario in October, while not as cheap as those in August, still average around $189.

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

You could potentially save up to 71% 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

5h 15m

Direct flights

None
The fastest flight from South Dakota to Ontario takes 5h 15m
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?

  • 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 AirlinesPriceFrom $236Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights
American AirlinesPriceFrom $350Free CancellationRating
7.1
11,661 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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