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Montana

$195+ 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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Cheap flight deals from Portland to Montana

Keep the following information in mind while searching for Portland to Montana flight deals. Data was last updated November 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$254
(United Airlines)

One-way from

$195
(Southwest)

Popular in

December

Cheapest in

September

Average price

$497
Provider with most accurate pricing for Portland-Bozeman Gallatin Field flight deals.
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Provider most trusted by Cheapflights users for Portland-Bozeman Gallatin Field flights.
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From Portland to Montana
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One-way flight from Portland to Montana
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Highest demand for flights based on searches. 29% potential increase in price ($280 potential increase over avg. RT price).
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Cheapest flight prices on average. 19% potential price decrease ($110 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 4, 2025.

This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 11/193:20 pmPWM - BZN
1 stop8h 20mUnited Airlines
Sun 11/234:00 pmBZN - PWM
2 stops15h 19mUnited Airlines
Deal found 11/4$304
This Delta deal was found by Cheapflights users on 11/2. 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.
Sat 11/1512:48 pmPWM - MSO
2 stops10h 58mDelta
Tue 11/188:00 amMSO - PWM
2 stops12h 19mDelta
Deal found 11/2$484
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Wed 12/36:00 amPWM - MSO
2 stops12h 10mUnited Airlines
Wed 12/106:15 amMSO - PWM
2 stops10h 39mUnited Airlines
Deal found 11/3$487
This Delta deal was found by Cheapflights users on 11/3. 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.
Sat 12/612:53 pmPWM - HLN
2 stops11h 37mDelta
Tue 12/95:30 amHLN - PWM
2 stops32h 37mDelta
Deal found 11/3$502
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 12/66:00 amPWM - HLN
3 stops17h 22mUnited Airlines
Tue 12/96:30 amHLN - PWM
2 stops10h 24mUnited Airlines
Deal found 11/2$513
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 11/83:20 pmPWM - MSO
1 stop8h 27mUnited Airlines
Tue 11/116:20 amMSO - PWM
1 stop7h 28mUnited Airlines
Deal found 11/4$529
This United Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/86:00 amPWM - MSO
2 stops12h 01mUnited Airlines
Mon 11/106:20 amMSO - PWM
1 stop7h 28mUnited Airlines
Deal found 11/3$534
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sat 11/153:20 pmPWM - MSO
1 stop8h 27mUnited Airlines
Tue 11/186:20 amMSO - PWM
1 stop7h 28mUnited Airlines
Deal found 11/2$539
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Sat 11/87:02 amPWM - MSO
2 stops15h 04mAmerican Airlines
Mon 11/107:01 amMSO - PWM
2 stops14h 58mAmerican Airlines
Deal found 11/3$579
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/86:00 amPWM - MSO
2 stops12h 10mUnited Airlines
Mon 12/152:35 pmMSO - PWM
2 stops21h 47mUnited Airlines
Deal found 11/3$609
This Southwest deal was found by Cheapflights users on 11/3. 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.
Tue 12/2311:50 amPWM - BZN
2 stops14h 35mSouthwest
Sat 12/275:00 amBZN - PWM
2 stops10h 05mSouthwest
Deal found 11/3$686
This United Airlines deal was found by Cheapflights users on 11/2. 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.
Sun 11/95:30 amPWM - GTF
2 stops10h 03mUnited Airlines
Fri 11/142:30 pmGTF - PWM
2 stops29h 20mUnited Airlines
Deal found 11/2$784

Cheapflights Fare Finder

 
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 November 4, 2025.
Use the filters below to find and compare flights from Portland to Montana that are best for you.

Fly from

Portland

Fly to

Montana

Route

Depart

Return

Price

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Tue 3/3

5:45 am-11:46 am

1 stop8h 01m

Bozeman Gallatin Field

Tue 3/10

8:10 am-11:11 pm

2 stops13h 01m

$254

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Wed 11/19

3:20 pm-9:40 pm

1 stop8h 20m

Bozeman Gallatin Field

Sun 11/23

4:00 pm-9:19 am

2 stops15h 19m

$304

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Mon 1/26

8:40 am-9:33 pm

2 stops14h 53m

Bozeman Gallatin Field

Fri 1/30

12:05 pm-11:30 pm

1 stop9h 25m

$344

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Thu 1/29

12:46 pm-10:02 pm

2 stops11h 16m

Bozeman Gallatin Field

Mon 2/2

1:42 pm-12:06 pm

2 stops20h 24m

$374

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Mon 1/26

12:46 pm-10:02 pm

2 stops11h 16m

Bozeman Gallatin Field

Fri 1/30

1:42 pm-12:10 pm

2 stops20h 28m

$380

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Wed 4/29

6:00 am-11:33 am

1 stop7h 33m

Bozeman Gallatin Field

Sat 5/2

12:30 pm-9:27 pm

1 stop6h 57m

$389

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Sat 11/15

12:48 pm-9:46 pm

2 stops10h 58m

Missoula Johnson-Bell Field

Tue 11/18

8:00 am-10:19 pm

2 stops12h 19m

$484

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 12/3

6:00 am-4:10 pm

2 stops12h 10m

Missoula Johnson-Bell Field

Wed 12/10

6:15 am-6:54 pm

2 stops10h 39m

$487

PortlandHelena

PWM - HLN

PWMHLN

Portland

Sat 12/6

12:53 pm-10:30 pm

2 stops11h 37m

Helena

Tue 12/9

1:06 pm-4:07 pm

2 stops25h 01m

$502

PortlandHelena

PWM - HLN

PWMHLN

Portland

Sat 12/6

6:00 am-9:22 pm

3 stops17h 22m

Helena

Tue 12/9

6:30 am-6:54 pm

2 stops10h 24m

$513

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/3

Showing 1-10 of 29 results
1
2
3

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.

Cheapflights Insights

Everything you need to know about your flight from Portland to Montana

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

Currently, March is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $158). Flying from Portland, Maine to Montana in November is currently the most expensive (average of $260). 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.

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 November 4, 2025.
See what other customers who have flown with Southwest, Delta, and United Airlines from Portland to Montana have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,239 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,002 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,239 reviews

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Portland, Maine to Montana?

    Airlines like United Airlines and Delta fly from Portland, Maine to Montana in about 8h 01m. The time it takes to get you to your destination can typically vary by up to 2h 57m. There are 1988 mi between Portland, Maine and Montana. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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 $195. Users have also found prices from $215 and $304 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 - Billings Logan Intl or Portland - Missoula Johnson-Bell Field 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, March is the cheapest month in which you can book a flight from Portland, Maine to Montana (average of $158). Flying from Portland, Maine to Montana in November is currently the most expensive (average of $260). 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

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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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$233Average$590FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$308Average$619FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$311Average$581FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$390Average$496FlexibilityNo cancel feeOn-time63%

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