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STL - BIL

$138 Find cheap flights from St. Louis to Billings

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from St. Louis to Billings departing on 7/12. 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
0 bags
Sun 6/2
Sun 6/9

Search 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 St. Louis 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 St. Louis to Billings, as well as popular online travel agencies
In the last 7 days travelers have searched 43,693,958 times on KAYAK, and here is why:

Save 22% or moreCompare multiple travel sites with one search.

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

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

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

Cheap flight deals from St. Louis to Billings (STL-BIL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from St. Louis 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 and deals for you by selecting your travel dates.
Choose your dates
6:50 pm - 12:24 amSTL-BIL
6h 34m1 stop
6:25 am - 2:33 pmBIL-STL
7h 08m1 stop
$258Delta
Find Deal
Fri, May 31 - Sat, Jun 8
5:37 pm - 12:24 amSTL-BIL
7h 47m2 stops
6:25 am - 2:33 pmBIL-STL
7h 08m1 stop
$263Delta
Find Deal
Fri, May 31 - Sat, Jun 8
5:30 pm - 12:24 amSTL-BIL
7h 54m1 stop
6:39 pm - 12:58 amBIL-STL
5h 19m1 stop
$273Delta
Find Deal
Tue, Jun 4 - Mon, Jun 10
5:37 pm - 12:24 amSTL-BIL
7h 47m2 stops
6:39 pm - 9:15 amBIL-STL
13h 36m2 stops
$283Delta
Find Deal
Fri, May 31 - Sat, Jun 8
6:50 pm - 12:24 amSTL-BIL
6h 34m1 stop
6:35 pm - 12:46 amBIL-STL
5h 11m1 stop
$288Delta
Find Deal
Thu, May 16 - Sun, May 19
4:51 pm - 9:00 pmSTL-BIL
5h 09m1 stop
2:20 pm - 9:09 pmBIL-STL
5h 49m1 stop
$494United Airlines
Find Deal
Sat, May 18 - Tue, May 21
5:25 pm - 1:15 pmSTL-BIL
20h 50m2 stops
2:20 pm - 9:09 pmBIL-STL
5h 49m1 stop
$562United Airlines
Find Deal
Sat, May 18 - Tue, May 21
7:45 am - 8:54 amSTL-BIL
26h 09m3 stops
10:03 am - 4:05 pmBIL-STL
29h 02m3 stops
Fri, Jul 12 - Sat, Jul 20
3:07 pm - 8:54 amSTL-BIL
18h 47m2 stops
10:03 am - 4:05 pmBIL-STL
29h 02m3 stops
Fri, Jul 12 - Sat, Jul 20
2:25 pm - 2:24 pmSTL-BIL
24h 59m2 stops
3:04 pm - 1:28 pmBIL-STL
21h 24m2 stops
$679Alaska Airlines
Find Deal
Thu, Oct 3 - Mon, Oct 7

Flights from St. Louis to Billings - Travel Insights & Trends

Get data-powered insights and trends into flights from St. Louis 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 St. Louis to Billings?

The average price of all flights from St. Louis to Billings clicked on KAYAK for each day over the last 12 months.
When flying from St. Louis to Billings, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to St. Louis, you’ll find the best rates on Mondays and the most expensive ones on Wednesdays.

What is the cheapest month to fly from St. Louis to Billings?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from St. Louis 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 St. Louis to Billings is September, where tickets cost $381 on average. On the other hand, the most expensive months are April and November, where the average cost of tickets is $707 and $694 respectively.

How far in advance should I book a flight from St. Louis to Billings?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from St. Louis to Billings, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from St. Louis to Billings, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 29 days before departure.

Which airlines provide the cheapest flights from St. Louis to Billings?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from St. Louis to Billings found by KAYAK users in the last 72 hours was for $258 on Delta, followed by United Airlines ($494). One-way flight deals have also been found from as low as $138 on Sun Country Air and from $229 on Delta.

Good to know

Low season

January

High season

September

Cheapest flight

$138
Best time to beat the crowds but there is an average 5% increase in price.
Most popular time to fly and prices are also 34% lower on average.
Flight from St. Louis to Billings

When to book flights from St. Louis to Billings

Are your dates flexible? Find out the best times to travel from St. Louis 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 St. Louis to Billings

  • What is the cheapest flight from St. Louis to Billings?

    In the last 3 days, the lowest price for a flight from St. Louis to Billings was $138 for a one-way ticket and $258 for a round-trip.

  • Do I need a passport to fly between St. Louis and Billings?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from St. Louis to Billings?

    When flying out of St. Louis you will be using Lambert-St Louis. You will be landing at Billings, also known as Billings Logan Intl.

  • Which aircraft models fly most regularly from St. Louis to Billings?

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

  • Which airline alliances offer flights from St. Louis to Billings?

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

  • Which is the best airline for flights from St. Louis to Billings, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from St. Louis to Billings are Delta and United Airlines. With an average price for the route of $395 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $501 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from St. Louis 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 St. Louis to Billings.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billings from St. Louis 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 St. Louis 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 St. Louis with another airline. Booking your flights between St. Louis 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 St. Louis 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 St. Louis up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from St. Louis to Billings

 
See real verified KAYAK customer reviews for airlines flying from St. Louis 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 St. Louis 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.
8.0
DeltaOverall score based on 10848 reviews
8.0Entertainment
7.4Food
7.9Comfort
8.6Crew
8.2Boarding
Airline reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

8.0 ExcellentAnonymous, May 2024ATL - ATW
Read more about Delta reviews

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I paid $380 for my one-way ticket from California to Minnesota. The fair did not include online check-in. I received instructions from their app to check in at a kiosk. At the kiosk, the boarding pass would not print until an actual person came to verify that I had a personal item and not a carry-on item, On the plane, the person next to me was drunk and allowed to continue to order alcohol. United is garbage I’d rather fly spirit.

The plane was dirty and the in seat air wasn't blowing as planes usually do.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

All flights were on time and boarding was issue free

Terrible! The plane was old and you are required to connect your own device to their Wi-Fi rather than have entertainment options in the back of the seat in front of you. The Wi-Fi went out during the flight and there was only one plug for the devices every two seats. Three out of five surrounding my family did not work. The seats and spaces under them were so small I could not fit my backpack, which I’ve always brought on flights and fit before no problem. The crew were unpleasant and patronizing.

Great! The plane was decently sized and comfortable. The staff was nice and there was great in flight entertainment

Water service would be great. The way they board is terrible. Slow passengers first😂😂 They need to smart up a bit

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Book cheap flights from St. Louis to Billings

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from St. Louis to Billings found on KAYAK in the last 72 hours.
7/12Fri
1 stopSun Country Air
16h 29mSTL-BIL
$138
6/11Tue
1 stopDelta
6h 52mSTL-BIL
$229
6/8Sat
2 stopsDelta
12h 54mSTL-BIL
$234
6/8Sat
1 stopAlaska Airlines
9h 32mSTL-BIL
$236

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Last minute flights from St. Louis to Billings

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from St. Louis to Billings that are departing in the next 10 days.
5/7Tue
multi-stopDelta
7h 54mSTL-BIL
5/11Sat
multi-stopDelta
7h 26mBIL-STL
$378
5/7Tue
multi-stopDelta
10h 19mSTL-BIL
5/11Sat
multi-stopDelta
7h 26mBIL-STL
$383
5/7Tue
multi-stopDelta
10h 19mSTL-BIL
5/11Sat
multi-stopDelta
11h 14mBIL-STL
$388

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St. Louis - Billings Flights

Departure:

St. Louis (STL)United States

Destination:

Billings (BIL)United States

Return flight deals:

Billings - St. Louis

Cabin classes: