ONT - FSD

$149 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 11/27. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$299
Delta
Thu 12/11Sun 12/14
ONT - FSD • 1 stop
Cheapest one-way
$149
Multiple Airlines
Thu 11/27
ONT - FSD • 1 stop
Top airlines
Delta
Cheapest • from $299 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Start a new search
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

Thu, Dec 11 - Sun, Dec 14
Delta Logo
12:12 pm - 11:14 pmONT-FSD
9h 02m1 stop
Delta Logo
5:14 am - 12:34 pmFSD-ONT
9h 20m2 stops
$299Delta
Find Deal
Thu, Dec 11 - Sun, Dec 14
Delta Logo
5:49 pm - 10:17 amONT-FSD
14h 28m2 stops
Delta Logo
5:14 am - 12:34 pmFSD-ONT
9h 20m2 stops
$304Delta
Find Deal
Thu, Dec 11 - Sun, Dec 14
American Airlines Logo
10:47 am - 9:03 pmONT-FSD
8h 16m1 stop
American Airlines Logo
5:14 pm - 11:55 pmFSD-ONT
8h 41m1 stop
$339American Airlines
Find Deal
Thu, Feb 26 - Mon, Mar 2
United Airlines Logo
1:45 pm - 8:39 pmONT-FSD
4h 54m1 stop
United Airlines Logo
5:00 pm - 8:50 pmFSD-ONT
5h 50m1 stop
$349United Airlines
Find Deal
Sat, Jan 3 - Sat, May 9
American Airlines Logo
4:47 pm - 11:39 pmONT-FSD
4h 52m1 stop
American Airlines Logo
1:33 pm - 5:45 pmFSD-ONT
6h 12m1 stop
$377American Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:50 pm - 8:44 pmONT-FSD
4h 54m1 stop
United Airlines Logo
9:00 am - 12:48 pmFSD-ONT
5h 48m1 stop
$379United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:50 pm - 8:44 pmONT-FSD
4h 54m1 stop
United Airlines Logo
9:00 am - 5:41 pmFSD-ONT
10h 41m2 stops
$384United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:50 pm - 11:44 pmONT-FSD
7h 54m1 stop
United Airlines Logo
9:00 am - 12:48 pmFSD-ONT
5h 48m1 stop
$414United Airlines
Find Deal
Sat, Mar 7 - Tue, Mar 10
United Airlines Logo
1:50 pm - 11:44 pmONT-FSD
7h 54m1 stop
United Airlines Logo
9:00 am - 5:41 pmFSD-ONT
10h 41m2 stops
$419United Airlines
Find Deal
Sat, Jan 3 - Sat, May 9
American Airlines Logo
4:47 pm - 11:39 pmONT-FSD
4h 52m1 stop
American Airlines Logo
1:33 pm - 9:36 pmFSD-ONT
10h 03m2 stops
$439American Airlines
Find Deal
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.

What’s the cheapest day of the week to fly from Ontario to Sioux Falls?

The average price of all round-trip flights from Ontario to Sioux Falls clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Sioux Falls on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Ontario to Sioux Falls. For your return ticket, we recommend flying on a Tuesday and avoiding Sundays for the best deals.

Good to know

Low seasonOctober
Cheapest flight$149
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly with an average 11% 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 $149 for a one-way ticket and $299 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 $449 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 $407 and an overall rating of 7.2.

  • 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 9016 reviews
8.1Crew
7.1Entertainment
6.6Food
7.3Comfort
7.7Boarding
Airline reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

4.0 OkayThomas, Nov 2025SFO - KOA
Read more United Airlines reviews

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

Premium Plus is a really good idea for longer flights

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

I was in first class. The outlets at my seat did not work. The plane was shabby and run down. I had prepurchsed a day subscription for internet that was not redeemable. I had to repurchase the internet for my flight and then it didn’t work anyway. Quite disappointed in what was supposed to be the launch of a great vacation.

I understand stuff happens, but plane failures are likely due to lack of maintenance. Additionally, air conditioning wasn't working, no snack/drink service, no WiFi. Fortunately, the crew was communicative and light-hearted. United grabbed another plane and we were able to get to our destination.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

United sent me a mileage plus number last year but that number is invalid so I can’t use it to check into flights or collect mileage. There is human to speak about the problem, only computers who keep asking me if I am using the correct email. It’s so frustrating and I cannot resolve it.

Not a great experience. We paid for the upgrade for premium economy seats and seated ourselves in very comfortable seats. Someone came along with the same seat on their boarding pass. The aircraft had been changed and as a result we were booted out and sent further back to small uncomfortable seats. After complaining we were moved to emergency row seats, which gave us more leg room but the seats don’t recline. For people in our 70’s we found having to sit upright from California to NJ very uncomfortable. Not sure why they chose to move senior citizens instead of the two people that were allowed to take the more comfortable seats. Not happy.

I have a gluten allergy so did have any food

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

The flight was flawless and we even arrived between 20 and 25 minutes early!

Always seated jammed in rear of aircraft Admirals Club food at DFW terminal D was absolute worst food experience and I pay $600/year to eat this dried out junk

Mostly good. Flight was crowded but Airline personnel were very friendly & accommodating. It would be good to have savory snacks rather than just sweet Biscoff cookies.

It was a red eye flight, so no meals were provided, but it was fine with snacks. The seats felt cramped and almost too narrow.

Very crowded flight but what can you expect these days?? Crew was accommodating.

The seats in economy were appeared to be quite thin and lack sufficient cushioning to be comfortable. Perhaps it was my seating position but the plane seemed notably load.

The entertainment package was vast and the selections were very current. Keep updating it was great.

The seat was so hard my tailbone was aching The crew was kind of a b**** because I made a joke that I didn't care if they close the door I total c*** when she was trying to f****** act like she was mad at me because I said that The flight was bumpy. Sure you didnt have control over that.

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.

I liked the turn-style feature at gate 209B at LAX. Very efficient process. The gate staff also made several, clearly directed announcements so I felt very informed.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Frontier had yet another flight cancellation. Have never made a complete round trip with this airline without at least one leg getting cancelled. Miserable flights - dirty, uncomfortable planes that apparently always have issues since I've had multiple delays and cancellations with them.

Flight was delayed 3 times, would have been nice to have received text message instead of email notifications. Frontier app wasn’t even updated accordingly, no gate number disclosed. No agent at front desk of gate to inform of delay. Very confused and left if the dark

They changed the timing , first delayed by 4 hours then went back to 40 mins late, we had to run back to airport to not miss our flight. This is ridiculous

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

Information on your arrival and departure airports