What airlines fly to Montana?

Delta, JetBlue and United Airlines are the top three most popular airlines that fly to Montana from Portland, Maine according to our data. Delta is the first choice among our users, with 27% of people opting to fly with this airline when traveling to Montana. Keep in mind that there are 6 different airlines that fly to Montana on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Montana?

Delta, United Airlines, and American Airlines are the most popular carriers operating from Portland to Montana

When did momondo last update prices for flights from Portland Airport to Montana?

Prices for flights from Portland Airport to Montana are updated daily.

How many operators does momondo search for flights from Portland Airport to Montana?

There are 3 operators available for flights from Portland Airport to Montana as of August 2026.

How old do you have to be to fly from Portland Airport to Montana?

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 Portland Airport to Montana.

What documentation or ID do you need to fly to Montana?

The required travel and health documents for your Montana 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 Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$149 Cheap Flights from Portland, Maine to Montana in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland, Maine to Montana

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 1:16 pmPWM Portland-BZN Bozeman Gallatin Field

9h 16m1 stop Atlanta Hartsfield-Jackson

12:36 pm - 10:23 pmBZN Bozeman Gallatin Field-PWM Portland

7h 47m1 stop Atlanta Hartsfield-Jackson

$297Delta

Sat, Jan 23 - Sat, Jan 30

7:00 am - 12:25 pmPWM Portland-BZN Bozeman Gallatin Field

7h 25m1 stop Chicago O'Hare Intl

1:15 pm - 11:40 pmBZN Bozeman Gallatin Field-PWM Portland

8h 25m1 stop Chicago O'Hare Intl

$297American Airlines

Wed, Oct 21 - Mon, Oct 26

3:23 pm - 9:30 pmPWM Portland-BZN Bozeman Gallatin Field

8h 07m1 stop Denver Intl

6:30 am - 4:02 pmBZN Bozeman Gallatin Field-PWM Portland

7h 32m1 stop Denver Intl

$297United Airlines

Sat, Nov 7 - Wed, Nov 11

3:23 pm - 9:30 pmPWM Portland-BZN Bozeman Gallatin Field

8h 07m1 stop Denver Intl

6:30 am - 4:02 pmBZN Bozeman Gallatin Field-PWM Portland

7h 32m1 stop Denver Intl

$297United Airlines

Sat, Oct 31 - Wed, Nov 4

6:00 am - 1:16 pmPWM Portland-BZN Bozeman Gallatin Field

9h 16m1 stop Atlanta Hartsfield-Jackson

6:00 am - 10:23 pmBZN Bozeman Gallatin Field-PWM Portland

14h 23m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$302Delta

Sat, Jan 23 - Sat, Jan 30

6:00 am - 5:55 pmPWM Portland-BZN Bozeman Gallatin Field

13h 55m2 stops Atlanta Hartsfield-Jackson Salt Lake City

12:36 pm - 10:23 pmBZN Bozeman Gallatin Field-PWM Portland

7h 47m1 stop Atlanta Hartsfield-Jackson

$302Delta

Sat, Jan 23 - Sat, Jan 30

7:00 am - 12:25 pmPWM Portland-BZN Bozeman Gallatin Field

7h 25m1 stop Chicago O'Hare Intl

1:15 pm - 11:40 pmBZN Bozeman Gallatin Field-PWM Portland

8h 25m1 stop Chicago O'Hare Intl

$388American Airlines

Thu, Oct 22 - Mon, Oct 26

7:00 am - 12:25 pmPWM Portland-BZN Bozeman Gallatin Field

7h 25m1 stop Chicago O'Hare Intl

1:15 pm - 11:40 pmBZN Bozeman Gallatin Field-PWM Portland

8h 25m1 stop Chicago O'Hare Intl

$397American Airlines

Thu, Oct 22 - Mon, Oct 26

7:45 am - 12:15 pmPWM Portland-BZN Bozeman Gallatin Field

6h 30m1 stop Chicago Midway

6:15 pm - 9:45 amBZN Bozeman Gallatin Field-PWM Portland

13h 30m2 stops Las Vegas Harry Reid Intl Baltimore/Washington

$446Southwest

Tue, Sep 29 - Fri, Oct 9

1:05 pm - 10:30 pmPWM Portland-BZN Bozeman Gallatin Field

11h 25m2 stops Baltimore/Washington Denver Intl

6:15 pm - 9:45 amBZN Bozeman Gallatin Field-PWM Portland

13h 30m2 stops Las Vegas Harry Reid Intl Baltimore/Washington

$452Southwest

Tue, Sep 29 - Fri, Oct 9

Cheap last minute flights

Enter your travel dates to find the best prices.

5:30 am - 3:25 pmPWM Portland-BZN Bozeman Gallatin Field

11h 55m2 stops Philadelphia Dallas/Fort Worth

6:26 am - 11:41 pmBZN Bozeman Gallatin Field-PWM Portland

15h 15m2 stops Dallas/Fort Worth Philadelphia

$565American Airlines

Tue, Aug 18 - Tue, Aug 25

8:00 am - 3:25 pmPWM Portland-BZN Bozeman Gallatin Field

9h 25m1 stop Dallas/Fort Worth

6:26 am - 9:21 pmBZN Bozeman Gallatin Field-PWM Portland

12h 55m2 stops Dallas/Fort Worth Philadelphia

$581American Airlines

Tue, Aug 18 - Tue, Aug 25

5:30 am - 3:25 pmPWM Portland-BZN Bozeman Gallatin Field

11h 55m2 stops Philadelphia Dallas/Fort Worth

6:26 am - 11:37 pmBZN Bozeman Gallatin Field-PWM Portland

15h 11m2 stops Dallas/Fort Worth Philadelphia

$587American Airlines

Tue, Aug 18 - Sat, Aug 22

1:12 pm - 11:16 pmPWM Portland-BZN Bozeman Gallatin Field

12h 04m2 stops New York LaGuardia Minneapolis St Paul

12:02 pm - 9:31 pmBZN Bozeman Gallatin Field-PWM Portland

7h 29m1 stop Atlanta Hartsfield-Jackson

$642Delta

Tue, Aug 18 - Sat, Aug 22

1:12 pm - 11:16 pmPWM Portland-BZN Bozeman Gallatin Field

12h 04m2 stops New York LaGuardia Minneapolis St Paul

6:19 am - 9:31 pmBZN Bozeman Gallatin Field-PWM Portland

13h 12m2 stops Minneapolis St Paul Atlanta Hartsfield-Jackson

$647Delta

Tue, Aug 18 - Sat, Aug 22

3:37 pm - 9:12 pmPWM Portland-GTF Great Falls

7h 35m1 stop Denver Intl

6:15 am - 9:23 pmGTF Great Falls-PWM Portland

13h 08m2 stops Denver Intl Chicago O'Hare Intl

$649United Airlines

Tue, Aug 18 - Fri, Aug 28

6:00 am - 11:40 amPWM Portland-BZN Bozeman Gallatin Field

7h 40m1 stop Chicago O'Hare Intl

12:43 pm - 9:23 pmBZN Bozeman Gallatin Field-PWM Portland

6h 40m1 stop Chicago O'Hare Intl

$655United Airlines

Tue, Aug 18 - Sat, Aug 22

6:00 am - 11:40 amPWM Portland-BZN Bozeman Gallatin Field

7h 40m1 stop Chicago O'Hare Intl

12:43 pm - 9:23 pmBZN Bozeman Gallatin Field-PWM Portland

6h 40m1 stop Chicago O'Hare Intl

$655United Airlines

Tue, Aug 18 - Tue, Aug 25

6:05 am - 1:05 pmPWM Portland-BZN Bozeman Gallatin Field

9h 00m1 stop Atlanta Hartsfield-Jackson

11:27 am - 11:30 pmBZN Bozeman Gallatin Field-PWM Portland

10h 03m2 stops Minneapolis St Paul New York LaGuardia

$794Delta

Fri, Aug 14 - Fri, Aug 21

7:40 am - 4:30 pmPWM Portland-BZN Bozeman Gallatin Field

10h 50m2 stops Chicago Midway Denver Intl

8:35 am - 9:30 pmBZN Bozeman Gallatin Field-PWM Portland

10h 55m2 stops Denver Intl Chicago Midway

$868Southwest

Fri, Aug 14 - Fri, Aug 21

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Southwest flights from Portland, Maine to Montana

Our best Southwest deals on Portland, Maine to Montana flight tickets

Southwest

Sep 29

PWM1:05 pmPortland

11h 25m

2 stops

BZN10:30 pmBozeman Gallatin Field

Oct 9

BZN6:15 pmBozeman Gallatin Field

13h 30m

2 stops

PWM9:45 amPortland

$452

Southwest

Sep 29

PWM7:45 amPortland

6h 30m

1 stop

BZN12:15 pmBozeman Gallatin Field

Oct 9

BZN6:15 pmBozeman Gallatin Field

13h 30m

2 stops

PWM9:45 amPortland

$466

Southwest

Sep 29

PWM1:05 pmPortland

11h 25m

2 stops

BZN10:30 pmBozeman Gallatin Field

Oct 9

BZN6:15 pmBozeman Gallatin Field

13h 30m

2 stops

PWM9:45 amPortland

$471

American Airlines flights from Portland, Maine to Montana

Our best American Airlines deals on Portland, Maine to Montana flight tickets

American Airlines

Oct 21

PWM7:00 amPortland

7h 25m

1 stop

BZN12:25 pmBozeman Gallatin Field

Oct 26

BZN1:15 pmBozeman Gallatin Field

8h 25m

1 stop

PWM11:40 pmPortland

$297

American Airlines

Oct 22

PWM7:00 amPortland

7h 25m

1 stop

BZN12:25 pmBozeman Gallatin Field

Oct 26

BZN1:15 pmBozeman Gallatin Field

8h 25m

1 stop

PWM11:40 pmPortland

$388

American Airlines

Oct 25

PWM7:00 amPortland

7h 25m

1 stop

BZN12:25 pmBozeman Gallatin Field

Oct 29

BZN1:15 pmBozeman Gallatin Field

8h 25m

1 stop

PWM11:40 pmPortland

$426

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Sat 1/23

6:00 am-1:16 pm

1 stop9h 16m

Bozeman Gallatin Field

Sat 1/30

12:36 pm-10:23 pm

1 stop7h 47m

$297

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Wed 10/21

7:00 am-12:25 pm

1 stop7h 25m

Bozeman Gallatin Field

Mon 10/26

1:15 pm-11:40 pm

1 stop8h 25m

$297

Quickest round-trip

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Sat 11/7

3:23 pm-9:30 pm

1 stop8h 07m

Bozeman Gallatin Field

Wed 11/11

6:30 am-4:02 pm

1 stop7h 32m

$297

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Sat 10/31

3:23 pm-9:30 pm

1 stop8h 07m

Bozeman Gallatin Field

Wed 11/4

6:30 am-4:02 pm

1 stop7h 32m

$297

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Sat 1/23

6:00 am-1:16 pm

1 stop9h 16m

Bozeman Gallatin Field

Sat 1/30

6:00 am-10:23 pm

2 stops14h 23m

$302

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Sat 1/23

6:00 am-5:55 pm

2 stops13h 55m

Bozeman Gallatin Field

Sat 1/30

12:36 pm-10:23 pm

1 stop7h 47m

$302

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Thu 10/22

7:00 am-12:25 pm

1 stop7h 25m

Bozeman Gallatin Field

Mon 10/26

1:15 pm-11:40 pm

1 stop8h 25m

$388

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Thu 10/22

7:00 am-12:25 pm

1 stop7h 25m

Bozeman Gallatin Field

Mon 10/26

1:15 pm-11:40 pm

1 stop8h 25m

$397

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Tue 9/29

7:45 am-12:15 pm

1 stop6h 30m

Bozeman Gallatin Field

Fri 10/9

6:15 pm-9:45 am

2 stops13h 30m

$446

PortlandBozeman

PWM Portland - BZN Bozeman Gallatin Field

PWMBZN

Portland

Tue 9/29

1:05 pm-10:30 pm

2 stops11h 25m

Bozeman Gallatin Field

Fri 10/9

6:15 pm-9:45 am

2 stops13h 30m

$452

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland, Maine to Montana

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 Montana?

The cheapest month to fly to Montana from Portland, Maine is in November. Flight prices, which tend to average around $324, are often lower during this time because this is during the off-season. The month of October is another great option to travel to Montana, with average flight prices from Portland, Maine averaging around $443.

Can stopping save me money on Portland, Maine to Montana flights?

You could potentially save up to 13% on your flight if you consider stops on a Portland, Maine to Montana flight.

Cheap Portland, Maine to Montana flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland, Maine to Montana

Fastest flight time	7h 23m
Direct flights	None

The fastest flight from Portland, Maine to Montana takes 7h 23m

There are no direct flights from Portland, Maine to Montana. There are no popular flight routes from Portland, Maine to Montana.

Search flight deals

Frequently asked questions about flying from Portland, Maine to Montana

When did momondo last update prices for flights from Portland Airport to Montana?
Prices for flights from Portland Airport to Montana are updated daily.
How many operators does momondo search for flights from Portland Airport to Montana?
There are 3 operators available for flights from Portland Airport to Montana as of August 2026.
How old do you have to be to fly from Portland Airport to Montana?
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 Portland Airport to Montana.
What documentation or ID do you need to fly to Montana?
The required travel and health documents for your Montana 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 Montana. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Portland, Maine to Montana

Compare and see reviews for airlines that fly from Portland, Maine to Montana with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $249	Free Cancellation	Rating 7.8 8,502 reviews	Search Delta flights
United Airlines	PriceFrom $308	Free Cancellation	Rating 7.4 10,111 reviews	Search United Airlines flights
American Airlines	PriceFrom $358	Free Cancellation	Rating 7.1 11,923 reviews	Search American Airlines flights

Why use momondo?

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

It is quick and easy to find Portland to Montana flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Montana that suits you.

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

All flight searches from Portland to Montana on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Portland to Montana?

Once all potential Portland to Montana flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

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