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

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

How many flights depart from Montana to Portland, Maine on average per week?

7 flights are operational weekly from Montana to Portland, Maine as of October 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.

What airlines fly to Portland, Maine?

United Airlines, Delta and JetBlue are the top three most popular airlines that fly to Portland, Maine from Montana according to our data. United Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 6 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Portland, Maine?

The flight from Montana to Portland, Maine depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Bozeman (a popular airport in Montana) to Boston (the most popular airport in Portland, Maine), then the flight time is 4h 25m on average. If you fly from Billings (another popular airport in Montana) to Boston, then the average flight time is 5h 40m.

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

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

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

There are 2 operators available for flights from Montana to Portland Airport as of October 2026.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montana to Portland Airport.

What documentation or ID do you need to fly to Portland Airport?

The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$193 Cheap Flights from Montana to Portland, Maine in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Montana to Portland

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 4:02 pmBIL Billings Logan Intl-PWM Portland

7h 02m1 stop Denver Intl

3:23 pm - 10:30 pmPWM Portland-BIL Billings Logan Intl

9h 07m1 stop Denver Intl

$374United Airlines

Sat, Oct 24 - Wed, Oct 28

7:00 am - 4:02 pmBIL Billings Logan Intl-PWM Portland

7h 02m1 stop Denver Intl

8:32 am - 9:14 pmPWM Portland-BIL Billings Logan Intl

14h 42m2 stops Chicago O'Hare Intl Denver Intl

$380United Airlines

Sat, Oct 24 - Wed, Oct 28

2:29 pm - 11:35 pmBZN Bozeman Gallatin Field-PWM Portland

7h 06m1 stop Atlanta Hartsfield-Jackson

6:01 am - 1:19 pmPWM Portland-BZN Bozeman Gallatin Field

9h 18m1 stop Atlanta Hartsfield-Jackson

$385Delta

Wed, Oct 21 - Wed, Oct 28

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

7h 32m1 stop Denver Intl

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

8h 07m1 stop Denver Intl

$385United Airlines

Tue, Nov 3 - Wed, Nov 11

12:53 pm - 9:54 pmBZN Bozeman Gallatin Field-PWM Portland

7h 01m1 stop Chicago O'Hare Intl

5:30 am - 3:16 pmPWM Portland-BZN Bozeman Gallatin Field

11h 46m2 stops Washington, D.C. Dulles Intl San Francisco

$390United Airlines

Wed, Oct 21 - Wed, Oct 28

2:12 pm - 11:43 pmFCA Kalispell Glacier Park-PWM Portland

7h 31m1 stop Chicago O'Hare Intl

7:00 am - 1:27 pmPWM Portland-FCA Kalispell Glacier Park

8h 27m1 stop Chicago O'Hare Intl

$399American Airlines

Thu, Oct 22 - Wed, Oct 28

2:29 pm - 11:35 pmBZN Bozeman Gallatin Field-PWM Portland

7h 06m1 stop Atlanta Hartsfield-Jackson

6:01 am - 1:19 pmPWM Portland-BZN Bozeman Gallatin Field

9h 18m1 stop Atlanta Hartsfield-Jackson

$407Delta

Wed, Oct 21 - Fri, Oct 30

2:29 pm - 11:35 pmBZN Bozeman Gallatin Field-PWM Portland

7h 06m1 stop Atlanta Hartsfield-Jackson

6:01 am - 1:19 pmPWM Portland-BZN Bozeman Gallatin Field

9h 18m1 stop Atlanta Hartsfield-Jackson

$407Delta

Mon, Oct 19 - Wed, Oct 28

1:15 pm - 11:43 pmBZN Bozeman Gallatin Field-PWM Portland

8h 28m1 stop Chicago O'Hare Intl

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

7h 25m1 stop Chicago O'Hare Intl

$480American Airlines

Sat, Oct 17 - Wed, Oct 28

1:30 pm - 12:23 amBZN Bozeman Gallatin Field-PWM Portland

8h 53m2 stops Chicago O'Hare Intl Washington, D.C. Reagan-National

5:00 am - 12:41 pmPWM Portland-BZN Bozeman Gallatin Field

9h 41m2 stops Washington, D.C. Reagan-National Chicago O'Hare Intl

$490American Airlines

Thu, Dec 17 - Mon, Jan 11

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Montana to Portland, Maine

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

Delta

Oct 21

BZN2:29 pmBozeman Gallatin Field

7h 06m

1 stop

PWM11:35 pmPortland

Oct 28

PWM6:01 amPortland

9h 18m

1 stop

BZN1:19 pmBozeman Gallatin Field

$385

Delta

Oct 19

BZN2:29 pmBozeman Gallatin Field

7h 06m

1 stop

PWM11:35 pmPortland

Oct 28

PWM6:01 amPortland

9h 18m

1 stop

BZN1:19 pmBozeman Gallatin Field

$407

Delta

Oct 19

BZN2:29 pmBozeman Gallatin Field

7h 06m

1 stop

PWM11:35 pmPortland

Oct 28

PWM4:47 pmPortland

9h 40m

2 stops

BZN12:27 amBozeman Gallatin Field

$412

American Airlines flights from Montana to Portland, Maine

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

American Airlines

Oct 22

FCA2:12 pmKalispell Glacier Park

7h 31m

1 stop

PWM11:43 pmPortland

Oct 28

PWM7:00 amPortland

8h 27m

1 stop

FCA1:27 pmKalispell Glacier Park

$399

American Airlines

Oct 17

BZN1:15 pmBozeman Gallatin Field

8h 28m

1 stop

PWM11:43 pmPortland

Oct 28

PWM7:00 amPortland

7h 25m

1 stop

BZN12:25 pmBozeman Gallatin Field

$480

American Airlines

Dec 17

BZN1:30 pmBozeman Gallatin Field

8h 53m

2 stops

PWM12:23 amPortland

Jan 11

PWM5:00 amPortland

9h 41m

2 stops

BZN12:41 pmBozeman Gallatin Field

$490

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsPortland

BIL Billings Logan Intl - PWM Portland

BILPWM

Billings Logan Intl

Sat 10/24

7:00 am-4:02 pm

1 stop7h 02m

Portland

Wed 10/28

3:23 pm-10:30 pm

1 stop9h 07m

$374

BillingsPortland

BIL Billings Logan Intl - PWM Portland

BILPWM

Billings Logan Intl

Sat 10/24

7:00 am-4:02 pm

1 stop7h 02m

Portland

Wed 10/28

8:32 am-9:14 pm

2 stops14h 42m

$380

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Wed 10/21

2:29 pm-11:35 pm

1 stop7h 06m

Portland

Wed 10/28

6:01 am-1:19 pm

1 stop9h 18m

$385

Quickest round-trip

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Tue 11/3

6:30 am-4:02 pm

1 stop7h 32m

Portland

Wed 11/11

3:23 pm-9:30 pm

1 stop8h 07m

$385

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Wed 10/21

12:53 pm-9:54 pm

1 stop7h 01m

Portland

Wed 10/28

5:30 am-3:16 pm

2 stops11h 46m

$390

KalispellPortland

FCA Kalispell Glacier Park - PWM Portland

FCAPWM

Kalispell Glacier Park

Thu 10/22

2:12 pm-11:43 pm

1 stop7h 31m

Portland

Wed 10/28

7:00 am-1:27 pm

1 stop8h 27m

$399

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Wed 10/21

2:29 pm-11:35 pm

1 stop7h 06m

Portland

Fri 10/30

6:01 am-1:19 pm

1 stop9h 18m

$407

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Mon 10/19

2:29 pm-11:35 pm

1 stop7h 06m

Portland

Wed 10/28

6:01 am-1:19 pm

1 stop9h 18m

$407

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Sat 10/17

1:15 pm-11:43 pm

1 stop8h 28m

Portland

Wed 10/28

7:00 am-12:25 pm

1 stop7h 25m

$480

BozemanPortland

BZN Bozeman Gallatin Field - PWM Portland

BZNPWM

Bozeman Gallatin Field

Thu 12/17

1:30 pm-12:23 am

2 stops8h 53m

Portland

Mon 1/11

5:00 am-12:41 pm

2 stops9h 41m

$490

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 Montana to Portland, Maine

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

Other information

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Montana is in January. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $389.

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

You could potentially save up to 31% on your flight if you consider stops on a Montana to Portland, Maine flight.

Cheap Montana to Portland, Maine flight deals and tips

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

Best Price Found	$193
Fastest flight time	6h 44m
Direct flights	None

The best one-way flight to Portland, Maine from Montana in the past 72 hours is $193. The best round-trip flight deal from Montana to Portland, Maine found on momondo in the last 72 hours is $374.

The fastest flight from Montana to Portland, Maine takes 6h 44m

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

Search flight deals

Frequently asked questions about flying from Montana to Portland, Maine

When did momondo last update prices for flights from Montana to Portland Airport?
Prices for flights from Montana to Portland Airport are updated daily.
How many operators does momondo search for flights from Montana to Portland Airport?
There are 2 operators available for flights from Montana to Portland Airport as of October 2026.
How old do you have to be to fly from Montana to Portland Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montana to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Portland, Maine

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $368	Free Cancellation	Rating 7.4 10,270 reviews		Search United Airlines flights
American Airlines	PriceFrom $416	Free Cancellation	Rating 7.0 12,101 reviews		Search American Airlines flights

North Conway

Jackson

Boothbay Harbor

Brunswick

Lewiston

Freeport

Auburn

Conway

Bartlett

Gorham

Bath

Windham

Intervale

Oxford

Georgetown

Falmouth

Tamworth

Why use momondo?

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

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

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

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

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

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

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

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Sat 10/31

Sat 11/7

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Montana

Complete your trip

Feeling lucky

Airports servicing Maine

Rockland Knox County Regional Airport

Cheap flights from Montana to Portland from $193

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Portland departing on 10/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Montana to Portland

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Delta flights from Montana to Portland, Maine

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

American Airlines flights from Montana to Portland, Maine

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

momondo Fare Finder

Use the filters below to find and compare flights from Montana to Portland, Maine that are best for you.

See travel insights to Portland from

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

What is the cheapest month to fly to Portland, Maine?

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

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

What airlines fly to Portland, Maine?

How many flights depart from Montana to Portland, Maine on average per week?

How long does it take to fly to Portland, Maine?

Cheap Montana to Portland, Maine flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Montana to Portland, Maine

Best airlines flying from Montana to Portland, Maine

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

Traveling to a place near Portland?

Why use momondo?

An easier way to manage your Portland, Maine trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Maine

Fly your favorite airline to Portland

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Portland

List of cabin classes available on flights landing in Portland. Availability may vary depending on flight origin and airline.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Montana

According to popular flight searches on momondo this year

Complete your trip to Portland

Explore popular destinations other users love

According to popular flight searches on momondo this year