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$147+ 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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$297
(American Airlines)

One-way from

$147
(JetBlue)

Popular in

March

Cheapest in

January

Average price

$628
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. 4% potential increase in price ($30 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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 8/209:03 amPWM - BZN
1 stop8h 15mAmerican Airlines
Tue 8/267:25 amBZN - PWM
1 stop8h 21mAmerican Airlines
Deal found 6/12$297
This Delta deal was found by Cheapflights users on 6/10. 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.
Wed 8/205:00 pmPWM - BZN
2 stops8h 59mDelta
Tue 8/262:18 pmBZN - PWM
1 stop7h 45mDelta
Deal found 6/10$302
This United Airlines deal was found by Cheapflights users on 6/12. 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 7/94:56 pmPWM - BZN
1 stop7h 27mUnited Airlines
Sat 7/121:17 pmBZN - PWM
1 stop7h 57mUnited Airlines
Deal found 6/12$389
This Delta deal was found by Cheapflights users on 6/12. 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.
Wed 8/276:31 amPWM - GTF
2 stops12h 55mDelta
Fri 9/126:20 pmGTF - PWM
2 stops27h 11mDelta
Deal found 6/12$407
This Southwest deal was found by Cheapflights users on 6/10. 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.
Sat 8/305:45 amPWM - BZN
2 stops12h 40mSouthwest
Tue 9/26:00 amBZN - PWM
2 stops10h 20mSouthwest
Deal found 6/10$411
This United Airlines deal was found by Cheapflights users on 6/11. 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 6/273:37 pmPWM - BIL
1 stop7h 26mUnited Airlines
Tue 7/15:00 amBIL - PWM
1 stop8h 49mUnited Airlines
Deal found 6/11$418
This Delta deal was found by Cheapflights users on 6/12. 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 8/3012:53 pmPWM - HLN
2 stops11h 20mDelta
Tue 9/1612:50 pmHLN - PWM
2 stops32h 41mDelta
Deal found 6/12$428
This JetBlue deal was found by Cheapflights users on 6/12. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/216:10 amPWM - BZN
1 stop9h 46mJetBlue
Sat 6/282:51 pmBZN - PWM
1 stop7h 01mJetBlue
Deal found 6/12$431
This United Airlines deal was found by Cheapflights users on 6/12. 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 8/303:35 pmPWM - GTF
1 stop7h 53mUnited Airlines
Mon 9/157:00 amGTF - PWM
2 stops14h 01mUnited Airlines
Deal found 6/12$447
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/66:30 amPWM - MSO
1 stop18h 59mAmerican Airlines
Mon 8/1112:46 pmMSO - PWM
1 stop9h 13mAmerican Airlines
Deal found 6/11$473
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/146:10 amPWM - MSO
1 stop7h 28mUnited Airlines
Wed 7/1610:37 amMSO - PWM
2 stops10h 37mUnited Airlines
Deal found 6/11$481
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/2812:58 pmPWM - BZN
1 stop28h 39mMultiple Airlines
Thu 7/32:36 pmBZN - PWM
3 stops43h 21mMultiple Airlines
Deal found 6/10$518

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 June 12, 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

Wed 8/20

9:03 am-3:18 pm

1 stop8h 15m

Bozeman Gallatin Field

Tue 8/26

7:25 am-5:46 pm

1 stop8h 21m

$297

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Wed 8/20

5:00 pm-11:59 pm

2 stops8h 59m

Bozeman Gallatin Field

Tue 8/26

2:18 pm-12:03 am

1 stop7h 45m

$302

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Wed 7/9

4:56 pm-10:23 pm

1 stop7h 27m

Bozeman Gallatin Field

Sat 7/12

1:17 pm-11:14 pm

1 stop7h 57m

$389

PortlandGreat Falls

PWM - GTF

PWMGTF

Portland

Wed 8/27

6:31 am-5:26 pm

2 stops12h 55m

Great Falls

Fri 9/12

6:20 pm-11:31 pm

2 stops27h 11m

$407

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Sat 8/30

5:45 am-4:25 pm

2 stops12h 40m

Bozeman Gallatin Field

Tue 9/2

6:00 am-6:20 pm

2 stops10h 20m

$411

PortlandBillings

PWM - BIL

PWMBIL

Portland

Fri 6/27

3:37 pm-9:03 pm

1 stop7h 26m

Billings Logan Intl

Tue 7/1

5:00 am-3:49 pm

1 stop8h 49m

$418

PortlandHelena

PWM - HLN

PWMHLN

Portland

Sat 8/30

12:53 pm-10:13 pm

2 stops11h 20m

Helena

Tue 9/16

12:50 pm-11:31 pm

2 stops32h 41m

$428

PortlandGreat Falls

PWM - GTF

PWMGTF

Portland

Sat 8/30

3:35 pm-9:28 pm

1 stop7h 53m

Great Falls

Mon 9/15

7:00 am-11:01 pm

2 stops14h 01m

$447

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Wed 8/6

6:30 am-11:29 pm

1 stop18h 59m

Missoula Johnson-Bell Field

Mon 8/11

12:46 pm-11:59 pm

1 stop9h 13m

$473

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Mon 7/14

6:10 am-11:38 am

1 stop7h 28m

Missoula Johnson-Bell Field

Wed 7/16

10:37 am-11:14 pm

2 stops10h 37m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 32 results
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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, 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 May is currently the most expensive (average of $479). 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 June 12, 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 June 12, 2025.
To help decide which airline to fly from Portland to Montana, see what other customers have to say about Alaska Airlines, Southwest and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
JetBlue
7.3
Good
2,925 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 JetBlue. According to our data, you can fly for as low as $147. Users have also found prices from $154 and $194 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 May is currently the most expensive (average of $479). 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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Alternative routes for Portland to Montana

See prices for flight routes from nearby airports that may be better suited for you.
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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$314Average$681FlexibilityNo cancel feeOn-time69%
DeltaCheapest$318Average$621FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$353Average$643FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$416Average$585FlexibilityNo cancel feeOn-time63%

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