FSD - BIL

$259 Find Cheap Flights from Sioux Falls to Billings

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux Falls to Billings departing on 9/30. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux Falls to Billings, 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 Sioux Falls to Billings, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Sioux Falls to Billings (FSD-BIL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux Falls to Billings 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 Sioux Falls to Billings

Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
6:00 am - 9:35 amFSD-BIL
4h 35m1 stop
United Airlines Logo
7:00 am - 12:51 pmBIL-FSD
4h 51m1 stop
$259United Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
United Airlines Logo
6:00 am - 9:35 amFSD-BIL
4h 35m1 stop
United Airlines Logo
5:54 pm - 11:15 pmBIL-FSD
4h 21m1 stop
$320United Airlines
Find Deal
Wed, Oct 22 - Sun, Oct 26
United Airlines Logo
6:00 am - 9:35 amFSD-BIL
4h 35m1 stop
United Airlines Logo
5:57 pm - 11:44 pmBIL-FSD
4h 47m1 stop
$356United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
9:14 am - 1:13 pmFSD-BIL
4h 59m1 stop
United Airlines Logo
2:40 pm - 8:46 pmBIL-FSD
5h 06m1 stop
$384United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
1:20 pm - 10:37 pmFSD-BIL
10h 17m2 stops
Delta Logo
6:15 am - 7:18 pmBIL-FSD
12h 03m1 stop
$418Delta
Find Deal
Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
8:00 am - 5:13 pmFSD-BIL
10h 13m2 stops
United Airlines Logo
7:00 am - 10:42 amBIL-FSD
26h 42m1 stop
$423United Airlines
Find Deal
Wed, Oct 1 - Sun, Oct 5
American Airlines Logo
12:19 pm - 10:39 pmFSD-BIL
35h 20m1 stop
American Airlines Logo
6:00 am - 10:42 pmBIL-FSD
39h 42m1 stop
$447American Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
Delta Logo
1:20 pm - 10:37 pmFSD-BIL
10h 17m2 stops
Delta Logo
6:15 am - 7:18 pmBIL-FSD
12h 03m1 stop
$448Delta
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
8:00 am - 10:46 pmFSD-BIL
15h 46m2 stops
United Airlines Logo
2:30 pm - 8:21 pmBIL-FSD
4h 51m1 stop
$463United Airlines
Find Deal
Mon, Oct 13 - Mon, Oct 20
Multiple Airlines Logo
12:31 pm - 11:21 amFSD-BIL
47h 50m2 stops
Multiple Airlines Logo
6:31 pm - 12:39 pmBIL-FSD
17h 08m1 stop
$467Multiple Airlines
Find Deal

Everything you should know

Top airlines
United Airlines
Cheapest • from $259 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 38% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$259
Typical prices: $421-533
United Airlines
Tue 9/30Sat 10/4
FSD - BIL • 1 stop
Cheapest one-way
Multiple Airlines
Wed 9/17
FSD - BIL • multi-stop
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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 Billings!
Booking Insights

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

Get data-powered insights and trends into flights from Sioux Falls to Billings 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 Sioux Falls to Billings?

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

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

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sioux Falls to Billings, 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 Sioux Falls to Billings is April, where tickets cost $283 (return) on average. On the other hand, the most expensive months are October and December, where the average cost of round-trip tickets is $672 and $668 respectively.

Good to know

Low seasonFebruary
Cheapest flight$259
Best time to beat the crowds but there is an average 38% increase in price.
Most popular time to fly and prices are also 22% lower on average.
Flight from Sioux Falls to Billings

When to book flights from Sioux Falls to Billings

Are your dates flexible? Find out the best times to travel from Sioux Falls to Billings 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 Sioux Falls to Billings

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

    In the last 3 days, the lowest price for a flight from Sioux Falls to Billings was $259 for a round-trip ticket.

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

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

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Sioux Falls to Billings are Delta and United Airlines. With an average price for the route of $358 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $372 and an overall rating of 7.4.

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

    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 Sioux Falls to Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from Sioux Falls 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 Sioux Falls to Billings?

    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 Billings with an airline and back to Sioux Falls with another airline. Booking your flights between Sioux Falls and BIL 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 Sioux Falls to Billings?

    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 Billings from Sioux Falls up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Sioux Falls to Billings

 
See real verified KAYAK customer reviews for airlines flying from Sioux Falls to Billings. 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 Sioux Falls to Billings? 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.
7.9
DeltaOverall score based on 7957 reviews
7.9Comfort
8.5Crew
7.3Food
7.9Entertainment
8.2Boarding
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

Terrible. They wouldn't allow me on my flight on the 14th..

The newer screen was super cool and had the option to watch many different shows or movies. Crew was polite and helpful. However again, many children screaming bloody murder and kicking my seat, and parents doing nothing about it as usual.

Flight was good and crew was super polite. However, there were around 5 kids screaming the WHOLE 2 hours. I understand kids have to come but parents need to do something to control their children. They make the experience terrible, especially after finishing 16 hour shifts at the hospital I needed some sleep, which I did not get.

IAD with the archaic people movers is just a place to be avoided.

All of the United employees I interacted with were professional and courteous. The aircraft was clean, the food on the flight was good. No complaints here.

Armrest controller on my seat 35D and nextbooennseat 35E did not work right. Hard to press buttons to recognize and 35D had constantnpressure either upmost down somit was nearly impossible to make selections. .

I flew with my dog and had already purchased my dog’s ticket. Even that morning I had called costumer service to insure that my husband and I had seats together since the website was giving me an error when choosing our seats and the representative mentioned our dog. I showed up early to the airport and when I got to the gate and we started boarding I was help back and told that I was supposed to have a yellow tag and that I should have checked in at the counter for them to give me that tag. I was not aware of this, the representative on the phone did not say anything. Nor did I see it anywhere in the checking process online, so if you travel with a pet and are not checking in luggage, just know that you still have to go to the check in counter when arriving at the airport unless you want to be the last one to board and not have room for your carry on in the overhead bins. Other than that, I had a great experience.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

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.

There was no food available for this red eye... one little waffle cookie for a 6+ hour flight... thank God I was able to sleep some

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

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