FSD - BIL

$339 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 1/28. 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 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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Everything you should know

Cheapest round-trip
$339
Typical prices: $329-$368
United Airlines
Wed 1/28Sat 1/31
FSD - BIL • 1 stop
Cheapest one-way
$390
United Airlines
Fri 12/26
FSD - BIL • 1 stop
When to travel
November
Cheapest • 35% price drop
March
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
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We hope you love your trip to Billings!
Flight Deals
Booking Insights
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

Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
9:00 am - 1:24 pm
FSD
-
BIL
5h 24m1 stop
United Airlines Logo
10:52 am - 4:37 pm
BIL
-
FSD
4h 45m1 stop
$339United Airlines
Thu, Jan 1 - Mon, Jan 5
United Airlines Logo
6:00 am - 9:49 am
FSD
-
BIL
4h 49m1 stop
United Airlines Logo
2:40 pm - 8:00 pm
BIL
-
FSD
4h 20m1 stop
$369United Airlines
Sun, Mar 22 - Wed, Mar 25
United Airlines Logo
9:00 am - 1:23 pm
FSD
-
BIL
5h 23m1 stop
United Airlines Logo
2:36 pm - 8:44 pm
BIL
-
FSD
5h 08m1 stop
$398United Airlines
Wed, Jan 28 - Sat, Jan 31
United Airlines Logo
7:30 am - 9:23 pm
FSD
-
BIL
14h 53m2 stops
United Airlines Logo
10:52 am - 4:37 pm
BIL
-
FSD
4h 45m1 stop
$448United Airlines
Thu, Jan 1 - Mon, Jan 5
United Airlines Logo
6:00 am - 9:49 am
FSD
-
BIL
4h 49m1 stop
United Airlines Logo
6:35 am - 2:36 pm
BIL
-
FSD
31h 01m2 stops
$553United Airlines
Wed, Dec 31 - Sun, Jan 4
United Airlines Logo
8:50 am - 1:24 pm
FSD
-
BIL
5h 34m1 stop
United Airlines Logo
2:40 pm - 8:00 pm
BIL
-
FSD
4h 20m1 stop
$616United Airlines
Wed, Dec 31 - Sun, Jan 4
Allegiant Air Logo
7:03 pm - 12:28 pm
FSD
-
BIL
18h 25m1 stop
Allegiant Air Logo
7:55 pm - 11:06 am
BIL
-
FSD
14h 11m1 stop
$667Allegiant Air
Wed, Dec 31 - Sun, Jan 4
Multiple Airlines Logo
7:03 pm - 12:28 pm
FSD
-
BIL
18h 25m1 stop
Multiple Airlines Logo
10:05 pm - 7:55 pm
BIL
-
FSD
20h 50m2 stops
$716Multiple Airlines
Sun, Mar 22 - Wed, Mar 25
Multiple Airlines Logo
12:29 pm - 9:07 am
FSD
-
BIL
21h 38m2 stops
Multiple Airlines Logo
4:49 pm - 11:39 am
BIL
-
FSD
17h 50m1 stop
$726Multiple Airlines
Sun, Mar 22 - Thu, Mar 26
United Airlines Logo
9:00 am - 1:23 pm
FSD
-
BIL
5h 23m1 stop
United Airlines Logo
2:36 pm - 10:02 pm
BIL
-
FSD
30h 26m2 stops
$868United Airlines
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.

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

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

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 November, where tickets cost $268 (return) on average. On the other hand, the most expensive months are February and December, where the average cost of round-trip tickets is $628 and $613 respectively.

Good to know

Low seasonFebruary
Cheapest flight$339
Best time to beat the crowds but there is an average 51% increase in price.
Most popular time to fly and prices are also 14% 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 $390 for a one-way ticket and $339 for a round-trip.

  • 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?

    SkyTeam, and Star Alliance 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 $338 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 $368 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 8005 reviews
7.9Entertainment
8.1Boarding
8.5Crew
7.9Comfort
7.3Food
Airline reviews

Great. I had to modify a flight. That was easy and free. Thank You

10.0 ExcellentOlumuyiwa, Dec 2025
DTW - ATL
Read more Delta reviews

Great. I had to modify a flight. That was easy and free. Thank You

I noticed that the planes seem to be outdated. There was no entertainment per se. Also, the waiting area did not have any working electrical outlets

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

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

Information on your arrival and departure airports