What is the cheapest airline that flies from Lambert-St Louis to Billings Logan Intl?

United Airlines is the most popular carrier operating from Lambert-St Louis to Billings Logan Intl

When did momondo last update prices for flights from Lambert-St Louis Airport to Billings Logan Intl Airport?

Prices for flights from Lambert-St Louis Airport to Billings Logan Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Lambert-St Louis Airport to Billings Logan Intl Airport?

As of September 2026, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Billings Logan Intl Airport.

How old do you have to be to fly from Lambert-St Louis Airport to Billings Logan Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Billings Logan Intl Airport.

What documentation or ID do you need to fly to Billings Logan Intl Airport?

The travel and health documents required for your trip to Billings Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Billings Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$386 Cheap Flights from St. Louis to Billings in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from St. Louis to Billings

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:10 am - 9:46 amSTL Lambert-St Louis-BIL Billings Logan Intl

5h 36m1 stop Denver Intl

2:28 pm - 8:36 pmBIL Billings Logan Intl-STL Lambert-St Louis

5h 08m1 stop Denver Intl

$399United Airlines

Tue, Sep 29 - Sat, Oct 3

4:39 pm - 10:53 pmSTL Lambert-St Louis-BIL Billings Logan Intl

7h 14m1 stop Denver Intl

5:00 am - 12:40 pmBIL Billings Logan Intl-STL Lambert-St Louis

6h 40m1 stop Denver Intl

$399United Airlines

Fri, Oct 2 - Tue, Oct 6

11:01 am - 10:10 pmSTL Lambert-St Louis-BIL Billings Logan Intl

12h 09m2 stops Chicago O'Hare Intl Dallas/Fort Worth

7:00 am - 2:44 pmBIL Billings Logan Intl-STL Lambert-St Louis

6h 44m1 stop Dallas/Fort Worth

$404American Airlines

Tue, Sep 29 - Sat, Oct 3

5:47 pm - 11:15 pmSTL Lambert-St Louis-BIL Billings Logan Intl

6h 28m1 stop Minneapolis St Paul

6:33 pm - 12:44 amBIL Billings Logan Intl-STL Lambert-St Louis

5h 11m1 stop Salt Lake City

$429Delta

Wed, Sep 30 - Sun, Oct 4

4:39 pm - 9:10 pmSTL Lambert-St Louis-BIL Billings Logan Intl

5h 31m1 stop Denver Intl

5:00 am - 3:43 pmBIL Billings Logan Intl-STL Lambert-St Louis

9h 43m2 stops Denver Intl Chicago O'Hare Intl

$430United Airlines

Fri, Oct 2 - Tue, Oct 6

7:45 am - 12:18 pmSTL Lambert-St Louis-BIL Billings Logan Intl

5h 33m1 stop Salt Lake City

5:20 am - 1:32 pmBIL Billings Logan Intl-STL Lambert-St Louis

7h 12m1 stop Salt Lake City

$464Delta

Sun, Oct 25 - Sun, Nov 1

7:45 am - 12:18 pmSTL Lambert-St Louis-BIL Billings Logan Intl

5h 33m1 stop Salt Lake City

6:29 pm - 9:17 amBIL Billings Logan Intl-STL Lambert-St Louis

13h 48m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$469Delta

Sun, Oct 25 - Sun, Nov 1

3:20 pm - 9:12 pmSTL Lambert-St Louis-BIL Billings Logan Intl

6h 52m1 stop Dallas/Fort Worth

1:21 pm - 7:48 pmBIL Billings Logan Intl-STL Lambert-St Louis

5h 27m1 stop Dallas/Fort Worth

$580American Airlines

Thu, Oct 8 - Tue, Oct 13

3:20 pm - 9:12 pmSTL Lambert-St Louis-BIL Billings Logan Intl

6h 52m1 stop Dallas/Fort Worth

1:21 pm - 9:59 pmBIL Billings Logan Intl-STL Lambert-St Louis

7h 38m1 stop Dallas/Fort Worth

$627American Airlines

Thu, Oct 8 - Tue, Oct 13

4:42 pm - 11:50 pmSTL Lambert-St Louis-BIL Billings Logan Intl

8h 08m1 stop Seattle/Tacoma Intl

7:32 pm - 11:59 pmBIL Billings Logan Intl-STL Lambert-St Louis

27h 27m1 stop Seattle/Tacoma Intl

$739Alaska Airlines

Fri, Oct 16 - Sun, Oct 18

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American Airlines flights from St. Louis to Billings

Our best American Airlines deals on St. Louis to Billings flight tickets

American Airlines

Sep 29

STL11:01 amLambert-St Louis

12h 09m

2 stops

BIL10:10 pmBillings Logan Intl

Oct 3

BIL7:00 amBillings Logan Intl

6h 44m

1 stop

STL2:44 pmLambert-St Louis

$404

American Airlines

Oct 8

STL3:20 pmLambert-St Louis

6h 52m

1 stop

BIL9:12 pmBillings Logan Intl

Oct 13

BIL1:21 pmBillings Logan Intl

5h 27m

1 stop

STL7:48 pmLambert-St Louis

$580

American Airlines

Oct 8

STL3:20 pmLambert-St Louis

6h 52m

1 stop

BIL9:12 pmBillings Logan Intl

Oct 13

BIL1:21 pmBillings Logan Intl

7h 38m

1 stop

STL9:59 pmLambert-St Louis

$627

United Airlines flights from St. Louis to Billings

Our best United Airlines deals on St. Louis to Billings flight tickets

United Airlines

Sep 29

STL5:10 amLambert-St Louis

5h 36m

1 stop

BIL9:46 amBillings Logan Intl

Oct 3

BIL2:28 pmBillings Logan Intl

5h 08m

1 stop

STL8:36 pmLambert-St Louis

$399

United Airlines

Oct 2

STL4:39 pmLambert-St Louis

5h 31m

1 stop

BIL9:10 pmBillings Logan Intl

Oct 6

BIL5:00 amBillings Logan Intl

9h 43m

2 stops

STL3:43 pmLambert-St Louis

$430

United Airlines

Jan 9

STL9:13 amLambert-St Louis

7h 20m

1 stop

BIL3:33 pmBillings Logan Intl

Jan 12

BIL2:42 pmBillings Logan Intl

5h 17m

1 stop

STL8:59 pmLambert-St Louis

$439

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Tue 9/29

5:10 am-9:46 am

1 stop5h 36m

Billings Logan Intl

Sat 10/3

2:28 pm-8:36 pm

1 stop5h 08m

$399

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Fri 10/2

4:39 pm-10:53 pm

1 stop7h 14m

Billings Logan Intl

Tue 10/6

5:00 am-12:40 pm

1 stop6h 40m

$399

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Tue 9/29

11:01 am-10:10 pm

2 stops12h 09m

Billings Logan Intl

Sat 10/3

7:00 am-2:44 pm

1 stop6h 44m

$404

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Wed 9/30

5:47 pm-11:15 pm

1 stop6h 28m

Billings Logan Intl

Sun 10/4

6:33 pm-12:44 am

1 stop5h 11m

$429

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Fri 10/2

4:39 pm-9:10 pm

1 stop5h 31m

Billings Logan Intl

Tue 10/6

5:00 am-3:43 pm

2 stops9h 43m

$430

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Sun 10/25

7:45 am-12:18 pm

1 stop5h 33m

Billings Logan Intl

Sun 11/1

5:20 am-1:32 pm

1 stop7h 12m

$464

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Sun 10/25

7:45 am-12:18 pm

1 stop5h 33m

Billings Logan Intl

Sun 11/1

6:29 pm-9:17 am

2 stops13h 48m

$469

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Thu 10/8

3:20 pm-9:12 pm

1 stop6h 52m

Billings Logan Intl

Tue 10/13

1:21 pm-7:48 pm

1 stop5h 27m

$580

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Thu 10/8

3:20 pm-9:12 pm

1 stop6h 52m

Billings Logan Intl

Tue 10/13

1:21 pm-9:59 pm

1 stop7h 38m

$627

St. LouisBillings

STL Lambert-St Louis - BIL Billings Logan Intl

STLBIL

Lambert-St Louis

Fri 10/16

4:42 pm-11:50 pm

1 stop8h 08m

Billings Logan Intl

Sun 10/18

7:32 pm-11:59 pm

1 stop27h 27m

$739

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first

How to get the cheapest flight ticket from St. Louis to Billings

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Billings?

The month of January is, on average, the cheapest month to fly to Billings from St. Louis, with most prices found around $0. The month of March is another great option to travel to Billings, with average flight prices from St. Louis averaging around $332.

When to book flights from St. Louis to Billings

Are you open to changing your travel dates? Check out the ideal times to fly from St. Louis to Billings according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap St. Louis to Billings (STL to BIL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Billings

Best Price Found	$386
Fastest flight time	5h 34m
Direct flights	None

The best one-way flight to Billings from St. Louis in the past 72 hours is $386. The best round-trip flight deal from St. Louis to Billings found on momondo in the last 72 hours is $399.

The fastest flight from St. Louis to Billings takes 5h 34m

There are no direct flights from St. Louis to Billings. There are no popular flight routes from St. Louis to Billings.

Search flight deals

Frequently asked questions about flying from St. Louis to Billings

How far is Lambert-St Louis to Billings Logan Intl by plane?
Billings Logan Intl is 1055.0 mi away from Lambert-St Louis. A reasonable flight in good conditions will take 5h 34m.
When did momondo last update prices for flights from Lambert-St Louis Airport to Billings Logan Intl Airport?
Prices for flights from Lambert-St Louis Airport to Billings Logan Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Lambert-St Louis Airport to Billings Logan Intl Airport?
As of September 2026, there are 2 operators available to choose from for flights from Lambert-St Louis Airport to Billings Logan Intl Airport.
How old do you have to be to fly from Lambert-St Louis Airport to Billings Logan Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Lambert-St Louis Airport to Billings Logan Intl Airport.
What documentation or ID do you need to fly to Billings Logan Intl Airport?
The travel and health documents required for your trip to Billings Logan Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Billings Logan Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from St. Louis to Billings?
Based on momondo bookings for this flight route, the most popular airline on flight routes from St. Louis to Billings is United Airlines (75% of total bookings). The next most popular airline is Delta (25%).

Best airlines flying from St. Louis to Billings

Compare and see reviews for airlines that fly from St. Louis to Billings with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $280	Free Cancellation	Rating 7.8 8,589 reviews		Search Delta flights
United Airlines	PriceFrom $338	Free Cancellation	Rating 7.4 10,232 reviews		Search United Airlines flights

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Why should I use momondo to find a flight deal from St. Louis to Billings?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from St. Louis to Billings. momondo saves you time and could save you money on your trip.

Can I find flights from St. Louis to Billings with flexible booking policies on momondo?

Yes. All flights to Billings from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Billings?

momondo helps you find the best flight between St. Louis and Billings by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from St. Louis to Billings right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Billings, momondo offers a useful price alert feature which will track prices for flights to Billings from St. Louis and alert you when they change.