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Cheap flights from Montana to Baton Rouge from $449

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Baton Rouge departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Montana to Baton Rouge

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:15 am - 3:30 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
8h 15m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:00 pm - 10:30 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
11h 30m2 stops Houston George Bush Intcntl Los Angeles Los Angeles
$449United Airlines
Tue, Sep 1 - Wed, Sep 9
United Airlines Logo
9:45 am - 9:11 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
10h 26m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:05 pm - 9:26 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
10h 21m2 stops Houston George Bush Intcntl Denver Intl
$523United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
6:15 am - 10:56 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
15h 41m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
5:00 am - 1:27 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
9h 27m2 stops Houston George Bush Intcntl Denver Intl
$572United Airlines
Sat, Jan 16 - Wed, Jan 20
United Airlines Logo
9:45 am - 9:11 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
10h 26m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:05 pm - 9:26 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
10h 21m2 stops Houston George Bush Intcntl Denver Intl
$607United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
5:32 pm - 11:04 amMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
16h 32m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
7:00 am - 4:10 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
10h 10m2 stops Houston George Bush Intcntl Denver Intl
$613United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
5:32 pm - 11:04 amMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
16h 32m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:05 pm - 9:26 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
10h 21m2 stops Houston George Bush Intcntl Denver Intl
$668United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
6:15 am - 10:56 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
15h 41m3 stops Denver Intl Austin Bergstrom Houston George Bush Intcntl
United Airlines Logo
5:00 am - 1:27 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
9h 27m2 stops Houston George Bush Intcntl Denver Intl
$674United Airlines
Sat, Jan 16 - Wed, Jan 20
United Airlines Logo
6:15 am - 10:56 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
15h 41m3 stops Denver Intl Austin Bergstrom Houston George Bush Intcntl
United Airlines Logo
7:00 am - 6:25 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
12h 25m2 stops Houston George Bush Intcntl Denver Intl
$699United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
6:15 am - 10:56 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
15h 41m3 stops Denver Intl Austin Bergstrom Houston George Bush Intcntl
United Airlines Logo
5:00 am - 4:10 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
12h 10m2 stops Houston George Bush Intcntl Denver Intl
$700United Airlines
Wed, Jan 6 - Sat, Jan 9
United Airlines Logo
6:15 am - 5:33 pmMSO  Missoula Johnson-Bell Field-BTR Baton Rouge Ryan
10h 18m2 stops Denver Intl Houston George Bush Intcntl
United Airlines Logo
12:00 pm - 9:31 pmBTR  Baton Rouge Ryan-MSO Missoula Johnson-Bell Field
10h 31m3 stops Houston George Bush Intcntl San Antonio Denver Intl
$742United Airlines
Tue, Sep 1 - Wed, Sep 9

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United Airlines flights from Montana to Baton Rouge

Our best United Airlines deals on Montana to Baton Rouge flight tickets
United Airlines
Sep 1
MSO6:15 amMissoula Johnson-Bell Field
8h 15m
2 stops
BTR3:30 pmBaton Rouge Ryan
Sep 9
BTR12:00 pmBaton Rouge Ryan
11h 30m
2 stops
MSO10:30 pmMissoula Johnson-Bell Field
$449
United Airlines
Jan 6
MSO9:45 amMissoula Johnson-Bell Field
10h 26m
2 stops
BTR9:11 pmBaton Rouge Ryan
Jan 9
BTR12:05 pmBaton Rouge Ryan
10h 21m
2 stops
MSO9:26 pmMissoula Johnson-Bell Field
$523
United Airlines
Jan 16
MSO6:15 amMissoula Johnson-Bell Field
15h 41m
2 stops
BTR10:56 pmBaton Rouge Ryan
Jan 20
BTR5:00 amBaton Rouge Ryan
9h 27m
2 stops
MSO1:27 pmMissoula Johnson-Bell Field
$572

American Airlines flights from Montana to Baton Rouge

Our best American Airlines deals on Montana to Baton Rouge flight tickets
American Airlines
Sep 1
MSO1:25 pmMissoula Johnson-Bell Field
5h 41m
1 stop
BTR8:06 pmBaton Rouge Ryan
Sep 9
BTR5:56 amBaton Rouge Ryan
7h 15m
1 stop
MSO12:11 pmMissoula Johnson-Bell Field
$851
American Airlines
Sep 1
MSO1:18 pmMissoula Johnson-Bell Field
23h 39m
2 stops
BTR1:57 pmBaton Rouge Ryan
Sep 9
BTR5:56 amBaton Rouge Ryan
7h 15m
1 stop
MSO12:11 pmMissoula Johnson-Bell Field
$1,009
American Airlines
Sep 7
MSO1:25 pmMissoula Johnson-Bell Field
5h 41m
1 stop
BTR8:06 pmBaton Rouge Ryan
Sep 9
BTR5:56 amBaton Rouge Ryan
7h 15m
1 stop
MSO12:11 pmMissoula Johnson-Bell Field
$1,187

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Baton Rouge that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 16, 2026.
Use the filters below to find and compare flights from Montana to Baton Rouge that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Tue 9/1

6:15 am-3:30 pm

2 stops8h 15m

Baton Rouge Ryan

Wed 9/9

12:00 pm-10:30 pm

2 stops11h 30m

$449

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

9:45 am-9:11 pm

2 stops10h 26m

Baton Rouge Ryan

Sat 1/9

12:05 pm-9:26 pm

2 stops10h 21m

$523

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Sat 1/16

6:15 am-10:56 pm

2 stops15h 41m

Baton Rouge Ryan

Wed 1/20

5:00 am-1:27 pm

2 stops9h 27m

$572

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

9:45 am-9:11 pm

2 stops10h 26m

Baton Rouge Ryan

Sat 1/9

12:05 pm-9:26 pm

2 stops10h 21m

$607

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

5:32 pm-11:04 am

2 stops16h 32m

Baton Rouge Ryan

Sat 1/9

7:00 am-4:10 pm

2 stops10h 10m

$613

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

5:32 pm-11:04 am

2 stops16h 32m

Baton Rouge Ryan

Sat 1/9

12:05 pm-9:26 pm

2 stops10h 21m

$668

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Sat 1/16

6:15 am-10:56 pm

3 stops15h 41m

Baton Rouge Ryan

Wed 1/20

5:00 am-1:27 pm

2 stops9h 27m

$674

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

6:15 am-10:56 pm

3 stops15h 41m

Baton Rouge Ryan

Sat 1/9

7:00 am-6:25 pm

2 stops12h 25m

$699

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Wed 1/6

6:15 am-10:56 pm

3 stops15h 41m

Baton Rouge Ryan

Sat 1/9

5:00 am-4:10 pm

2 stops12h 10m

$700

MissoulaBaton Rouge

MSO Missoula Johnson-Bell Field - BTR Baton Rouge Ryan

MSOBTR

Missoula Johnson-Bell Field

Tue 9/1

6:15 am-5:33 pm

2 stops10h 18m

Baton Rouge Ryan

Wed 9/9

12:00 pm-9:31 pm

3 stops10h 31m

$742

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Baton Rouge from

How to get the cheapest flight ticket from Montana to Baton Rouge

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

What airlines fly to Baton Rouge?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Baton Rouge from Montana according to our data. United Airlines is the first choice among our users, with 66% of people opting to fly with this airline when traveling to Baton Rouge. Keep in mind that there are 5 different airlines that fly to Baton Rouge on a routine basis, so you have a few additional options to choose from.

Cheap Montana to Baton Rouge flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Baton Rouge

Fastest flight time

8h 15m

Direct flights

None
The fastest flight from Montana to Baton Rouge takes 8h 15m
There are no direct flights from Montana to Baton Rouge. There are no popular flight routes from Montana to Baton Rouge.
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Frequently asked questions about flying from Montana to Baton Rouge

  • When did momondo last update prices for flights from Montana to Baton Rouge Ryan Airport?

    Prices for flights from Montana to Baton Rouge Ryan Airport refresh daily.

  • How old do you have to be to fly from Montana to Baton Rouge Ryan Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Baton Rouge Ryan Airport.

  • What documentation or ID do you need to fly to Baton Rouge Ryan Airport?

    The required travel and health documents for your Baton Rouge Ryan Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Baton Rouge Ryan Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Baton Rouge?

Book flights to Baton Rouge if you plan to visit one of these locations
Denham Springs
Port Allen
McComb
Saint Francisville

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Baton Rouge?

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

Can I find flights from Montana to Baton Rouge with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Montana to Baton Rouge flights to just show those with flexible booking policies.

How can momondo help me find flights from Montana to Baton Rouge?

momondo helps you find the best flight between Montana and Baton Rouge 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 Montana to Baton Rouge right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Montana to Baton Rouge now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Baton Rouge and let you know when they change.

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Tue 9/15
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