ONT - FSD

$80 Find Cheap Flights from Ontario to Sioux Falls

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Sioux Falls departing on 5/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux Falls

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Sioux Falls, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Sioux Falls, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$160
Typical prices: $422-$312
Frontier
Mon 5/11Mon 5/18
ONT - FSD • 1 stop
Cheapest one-way
$80
Typical prices: $334-$432
Frontier
Fri 5/8
ONT - FSD • 1 stop
Top airlines
Cheapest • from $160 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Ontario and Sioux Falls. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $422 (round-trip)
Shortest trip • 5h 56m (one-way)
Insights
Insights
Insights
Insights
When to travel
Cheapest • 41% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Sioux Falls!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Sioux Falls (ONT-FSD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Sioux Falls that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Sioux Falls

Mon, May 11 - Mon, May 18
Frontier Logo
6:00 am - 3:22 pm
ONT
-
FSD
7h 22m
1 stop
Frontier Logo
4:07 pm - 10:05 am
FSD
-
ONT
19h 58m
1 stop
$160Frontier
Thu, Apr 30 - Mon, May 4
Frontier Logo
12:59 am - 7:21 pm
ONT
-
FSD
16h 22m
1 stop
Frontier Logo
8:06 pm - 10:05 am
FSD
-
ONT
15h 59m
1 stop
$186Frontier
Thu, Apr 16 - Mon, May 18
Frontier Logo
5:33 pm - 7:21 pm
ONT
-
FSD
23h 48m
1 stop
Frontier Logo
4:07 pm - 10:05 am
FSD
-
ONT
19h 58m
1 stop
$198Frontier
Fri, May 15 - Mon, May 18
Frontier Logo
6:00 am - 3:22 pm
ONT
-
FSD
7h 22m
1 stop
Frontier Logo
4:07 pm - 10:05 am
FSD
-
ONT
19h 58m
1 stop
$217Frontier
Sun, May 3 - Fri, May 8
Frontier Logo
5:12 pm - 7:11 pm
ONT
-
FSD
23h 59m
1 stop
Frontier Logo
4:07 pm - 10:05 am
FSD
-
ONT
19h 58m
1 stop
$238Frontier
Thu, Apr 23 - Fri, May 1
Frontier Logo
5:33 pm - 7:21 pm
ONT
-
FSD
23h 48m
1 stop
Frontier Logo
8:06 pm - 11:55 pm
FSD
-
ONT
5h 49m
1 stop
$250Frontier
Thu, Apr 16 - Mon, May 18
Multiple Airlines Logo
8:26 am - 5:21 pm
ONT
-
FSD
30h 55m
2 stops
Multiple Airlines Logo
4:07 pm - 10:05 am
FSD
-
ONT
19h 58m
1 stop
$308Multiple Airlines
Thu, May 21 - Wed, May 27
Multiple Airlines Logo
11:51 am - 10:54 am
ONT
-
FSD
21h 03m
1 stop
Multiple Airlines Logo
3:39 pm - 7:32 pm
FSD
-
ONT
5h 53m
1 stop
$331Multiple Airlines
Thu, Apr 23 - Fri, May 1
United Airlines Logo
1:34 pm - 8:30 pm
ONT
-
FSD
4h 56m
1 stop
United Airlines Logo
6:00 am - 12:22 pm
FSD
-
ONT
8h 22m
2 stops
$354United Airlines
Thu, Apr 16 - Mon, Apr 20
Frontier Logo
12:59 am - 7:21 pm
ONT
-
FSD
16h 22m
1 stop
Frontier Logo
8:06 pm - 11:55 pm
FSD
-
ONT
5h 49m
1 stop
$355Frontier
Booking Insights

KAYAK's insights & trends for Ontario to Sioux Falls flights

Get data-powered insights and trends into flights from Ontario to Sioux Falls to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Ontario to Sioux Falls?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Sioux Falls departing in May.

What is the cheapest month to fly from Ontario to Sioux Falls?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Sioux Falls, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ontario to Sioux Falls is October, where tickets cost $230 (return) on average. On the other hand, the most expensive months are April and March, where the average cost of round-trip tickets is $458 and $449 respectively.

Good to know

Low seasonJanuary
Cheapest flight$80
Best time to beat the crowds but there is an average 12% increase in price.
Most popular time to fly with an average 14% increase in price.
Flight from Ontario to Sioux Falls

When to book flights from Ontario to Sioux Falls

Are your dates flexible? Find out the best times to travel from Ontario to Sioux Falls based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Ontario to Sioux Falls

  • What is the cheapest flight from Ontario to Sioux Falls?

    In the last 3 days, the lowest price for a flight from Ontario to Sioux Falls was $80 for a one-way ticket and $160 for a round-trip.

  • Do I need a passport to fly between Ontario and Sioux Falls?

    No, a passport isn't needed to fly from Ontario to Sioux Falls. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Ontario to Sioux Falls?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Sioux Falls?

    Star Alliance, and oneworld are the airline alliances operating flights between Ontario and Sioux Falls, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Ontario to Sioux Falls, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Ontario to Sioux Falls are United Airlines and American Airlines. With an average price for the route of $439 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $416 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Ontario to Sioux Falls?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Sioux Falls.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Sioux Falls?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux Falls from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Sioux Falls?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux Falls with an airline and back to Ontario with another airline. Booking your flights between Ontario and FSD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Sioux Falls?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux Falls from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Ontario to Sioux Falls

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Sioux Falls. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Sioux Falls? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9503 reviews
7.1Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
Airline reviews

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

2.0 MediocreDale, Mar 2026
SFO - TPA
Read more United Airlines reviews

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

OK, we were delayed and had to de plane and reboard.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Not good. One of my luggage is missing. And until now they can’t find it

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

Remind customers of the need to have passport or new ID for boarding.

The flight never took off and we spent 7 hours at the airport

It was ok. It was expensive to check 2 bags ($75.00 per bag), and then it took a long time to wait for shuttle to take us from one terminal to the terminal where the plane was taking off at LAX. And all of this for a flight where we had to pay for any food or drink that was not water.

When I wanted to check in 3 hours prior to boarding time, the employees mentioned “a little over an hour delay” so I waited for an hour then I went to go look for food in the terminal and most people from that flight were in the same area looking for food. Finally I decided after food to check to see if it’s anytime closer and now it’s 2 mins until boarding closes?! What are you kidding me? I didn’t receive anything via sms about boarding now nor via email or on the intercom. I luckily made it through, barely, and then there’s no room for my carry on mind you I’m in the very first row so I had to place my purse in one further row back and my carry on sections down. Not sure who pays for better seats to get your stuff placed all over the plane but that was the worst experience I’ve ever had flying with anyone.

This airline sucks. They offer low rates then charge you for everything, the app does not work well, the seats are the most uncomfortable. Maintenance issues on the flight, and you still have to sit through their credit card commercials. People are nice enough but does not make up for overall poor experience.

What I expected, nickeled and dined and a frontier flight attendant loudly complained about her job and lack of communication as she headed to the gate on her cell phone. Not professional.

Cancelled flight after I arrived at airport after 75 min drive and parking. Next flight was 4 days in the future. Had to scramble and buy a much more expensive flight on another carrier.

Everything you need to know for your flight from Ontario to Sioux Falls

Information on your arrival and departure airports