HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$259+ Cheap flights from Portland, ME (PWM) to Montana

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Jan 25 — Feb 11
Sat 1/25
Sat 2/1
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Portland to Montana with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Portland to Montana

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Montana (USMT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 20, 2025.

Round-trip from

$487
(Southwest)

One-way from

$259
(Southwest)
From Portland to Montana
Search Deals
One-way flight from Portland to Montana
Search Deals

Find flight deals from Portland to Montana

Cheapest flights from Portland to Montana
Explore the most affordable flight options available from Portland to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 20, 2025.

This American Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/256:07 amPWM - BZN
2 stops10h 17mAmerican Airlines
Fri 8/297:42 amBZN - PWM
1 stop7h 58mAmerican Airlines
Deal found 1/20$477
This Southwest deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/175:50 amPWM - BZN
2 stops13h 10mSouthwest
Thu 3/203:50 pmBZN - PWM
2 stops18h 35mSouthwest
Deal found 1/19$487
This United deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/126:00 amPWM - BZN
1 stop7h 16mUnited Airlines
Tue 9/1612:10 pmBZN - PWM
1 stop9h 07mUnited Airlines
Deal found 1/20$497
This Delta deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/185:29 amPWM - BZN
2 stops9h 21mDelta
Wed 3/193:10 pmBZN - PWM
2 stops21h 08mDelta
Deal found 1/19$529
This American Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/307:19 amPWM - MSO
1 stop7h 08mAmerican Airlines
Mon 8/47:23 amMSO - PWM
1 stop8h 17mAmerican Airlines
Deal found 1/18$539
This United Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/36:00 amPWM - MSO
2 stops12h 09mUnited Airlines
Fri 2/76:30 amMSO - PWM
2 stops30h 12mUnited Airlines
Deal found 1/18$548
This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/287:20 pmPWM - HLN
2 stops20h 05mUnited Airlines
Sun 3/26:30 amHLN - PWM
2 stops26h 12mUnited Airlines
Deal found 1/20$667
This Alaska Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/171:01 pmPWM - BZN
3 stops28h 38mAlaska Airlines
Thu 3/2011:24 amBZN - PWM
2 stops23h 06mAlaska Airlines
Deal found 1/19$676
This United deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/142:37 pmPWM - BIL
2 stops10h 03mUnited Airlines
Mon 5/197:00 amBIL - PWM
2 stops38h 59mUnited Airlines
Deal found 1/19$752
This Alaska Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/3012:38 pmPWM - MSO
3 stops23h 38mAlaska Airlines
Mon 8/42:35 pmMSO - PWM
2 stops17h 12mAlaska Airlines
Deal found 1/18$868
This American Airlines deal was found by Cheapflights users on 1/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1412:15 pmPWM - BIL
2 stops10h 29mAmerican Airlines
Mon 5/197:49 amBIL - PWM
3 stops12h 32mAmerican Airlines
Deal found 1/19$1,004
This Alaska Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/144:10 pmPWM - BIL
3 stops23h 07mAlaska Airlines
Mon 5/196:00 amBIL - PWM
2 stops14h 34mAlaska Airlines
Deal found 1/20$1,006

Find flights from Portland to Montana within your budget

Customize your flight search to find flights from Portland to Montana 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, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Mon 3/17

5:50 am-5:00 pm

2 stops13h 10m

Bozeman Gallatin Field

Thu 3/20

3:50 pm-12:25 pm

2 stops18h 35m

$487

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Sat 5/10

5:30 am-5:46 pm

2 stops14h 16m

Bozeman Gallatin Field

Sat 5/17

7:45 am-11:23 pm

2 stops13h 38m

$517

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Tue 3/18

5:29 am-12:50 pm

2 stops9h 21m

Bozeman Gallatin Field

Wed 3/19

3:10 pm-2:18 pm

2 stops21h 08m

$529

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Mon 2/3

6:00 am-4:09 pm

2 stops12h 09m

Missoula Johnson-Bell Field

Fri 2/7

6:30 am-2:42 pm

2 stops30h 12m

$548

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Thu 6/19

7:17 am-1:59 pm

1 stop8h 42m

Bozeman Gallatin Field

Mon 6/30

7:39 am-5:40 pm

1 stop8h 01m

$647

PortlandHelena

PWM - HLN

PWMHLN

Portland

Fri 2/28

7:20 pm-1:25 pm

2 stops20h 05m

Helena

Sun 3/2

6:30 am-10:42 am

2 stops26h 12m

$667

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Mon 3/17

1:01 pm-3:39 pm

3 stops28h 38m

Bozeman Gallatin Field

Thu 3/20

11:24 am-12:30 pm

2 stops23h 06m

$676

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Fri 6/20

7:17 am-12:23 pm

1 stop7h 06m

Missoula Johnson-Bell Field

Sat 6/28

7:15 am-5:40 pm

1 stop8h 25m

$727

PortlandBillings

PWM - BIL

PWMBIL

Portland

Wed 5/14

2:37 pm-10:40 pm

2 stops10h 03m

Billings Logan Intl

Mon 5/19

7:00 am-11:59 pm

2 stops38h 59m

$752

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Fri 6/20

4:14 pm-10:16 am

2 stops20h 02m

Missoula Johnson-Bell Field

Sat 6/28

1:20 pm-9:46 am

3 stops18h 26m

$908

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 20 results
1
2

Best time to book a flight from Portland to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Portland to Montana

Get recent, data-driven insights about flights from Portland to Montana including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Portland, Maine to Montana?

Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $371). Flying from Portland, Maine to Montana in June is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to MT?

Find hourly flight availability from Portland to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 20, 2025.

When flying from Portland, Maine to Montana, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Montana by month

Plan your trip to Montana by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Montana ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Montana when rainfall is around 0.4 in.

Temperature in Montana by month

Plan your trip to Montana by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Montana, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated January 20, 2025.
To help decide which airline to fly from Portland to Montana, see what other customers have to say about United Airlines, Delta and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Alaska Airlines
8.0
Very good
9,696 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,982 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Overall

8.1

Boarding

8.2

Food

7.2

Comfort

8.1

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Portland to Montana. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Montana?

    Portland (PWM), located 2.9 mi from the city center, is the airport you fly out of when you book flights from Portland to Montana.

  • What are the cheapest airlines to fly from Portland, Maine to Montana one-way?

    For one-way options, check prices for Southwest. According to our data, you can fly for as low as $259. Users have also found prices from $264 and $353 on Delta and United Airlines, respectively.

  • What are the most popular routes from Portland, Maine to Montana?

    Most travelers choose Portland - Bozeman Gallatin Field, Portland - Missoula Johnson-Bell Field or Portland - Billings Logan Intl when deciding on the best route from Portland, Maine to Montana.

  • Can I find deals for flights from Portland to Montana that include hotel bookings?

    Yes. In addition to deals on Portland to Montana flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Montana?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Montana.

  • Can I find deals for business class flights from Portland to Montana?

    Yes. Cheapflights offers flight deals from Portland to Montana by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Montana?

    Currently, October is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $371). Flying from Portland, Maine to Montana in June is currently the most expensive (average of $520). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Portland to Montana

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Fort Lauderdale flights
Boston to Orlando flights
Boston to Miami flights
Boston to Las Vegas flights
Boston to O'Hare Intl flights
Boston to Los Angeles flights
Boston to Denver flights
Boston to Dallas/Fort Worth flights
Boston to West Palm Beach flights
Boston to Tampa flights
Boston to Sky Harbor Intl flights
Boston to Salt Lake City flights
Boston to San Francisco flights
Boston to Seattle flights
Boston to Dulles Intl flights
Boston to Austin flights
Boston to Fort Myers flights
Boston to Hobby flights
Boston to Philadelphia flights
Boston to Nashville flights
Boston to Reagan-National flights
Boston to Charlotte flights
Boston to San Diego flights
Boston to Newark flights
Boston to LaGuardia flights
Boston to Baltimore flights
Boston to George Bush Intcntl flights
Boston to Charleston flights
Boston to New Orleans flights
Boston to John F Kennedy Intl flights
Boston to Atlanta flights
Boston to Raleigh flights
Boston to Honolulu flights
Boston to Jacksonville flights
Boston to Sarasota flights
Boston to Savannah flights
Boston to Key West flights
Boston to Minneapolis flights
Boston to Midway flights
Boston to Ontario flights
Boston to Kansas City flights
Boston to Portland flights
Boston to Love Field flights
Boston to Myrtle Beach flights
Boston to Indianapolis flights
Boston to Pittsburgh flights
Boston to Richmond flights
Boston to Baton Rouge flights
Boston to Cleveland flights
Boston to Detroit flights

Top 4 airlines flying from Portland to Montana

Discover the top 4 airlines that operate flights from Portland to Montana. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$314Average$847FlexibilityNo cancel feeOn-time69%
DeltaCheapest$347Average$670FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$416Average$666FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$432Average$698FlexibilityNo cancel feeOn-time71%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.