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$167+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — BZN
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$319
(Delta)

One-way from

$167
(American Airlines)

Popular in

March

Cheapest in

January

Average price

$572
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. 6% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This American Airlines deal was found by Cheapflights users on 7/28. 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.
Fri 8/293:32 pmPWM - BIL
1 stop9h 28mAmerican Airlines
Tue 9/25:49 amBIL - PWM
2 stops7h 41mAmerican Airlines
Deal found 7/28$294
This Delta deal was found by Cheapflights users on 7/28. 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 11/112:45 pmPWM - MSO
2 stops12h 28mDelta
Tue 11/48:00 amMSO - PWM
2 stops12h 19mDelta
Deal found 7/28$319
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 8/266:30 amPWM - BZN
1 stop8h 09mAmerican Airlines
Sat 8/3012:20 pmBZN - PWM
1 stop9h 39mAmerican Airlines
Deal found 7/30$333
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 9/410:39 amPWM - BZN
2 stops14h 04mUnited Airlines
Tue 9/912:50 pmBZN - PWM
1 stop7h 09mUnited Airlines
Deal found 7/29$356
This Southwest deal was found by Cheapflights users on 7/28. 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 8/2610:30 amPWM - BZN
2 stops14h 25mSouthwest
Sat 8/305:25 amBZN - PWM
2 stops14h 35mSouthwest
Deal found 7/28$367
This Delta deal was found by Cheapflights users on 7/29. 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.
Thu 10/306:00 amPWM - BZN
1 stop9h 19mDelta
Mon 11/311:35 amBZN - PWM
2 stops8h 44mDelta
Deal found 7/29$406
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/123:28 pmPWM - MSO
1 stop9h 50mAmerican Airlines
Fri 9/1912:50 pmMSO - PWM
1 stop9h 09mAmerican Airlines
Deal found 7/29$434
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Thu 10/303:20 pmPWM - HLN
1 stop8h 02mUnited Airlines
Mon 11/36:40 amHLN - PWM
2 stops14h 37mUnited Airlines
Deal found 7/28$444
This United Airlines deal was found by Cheapflights users on 7/28. 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 8/3010:50 amPWM - GTF
2 stops12h 38mUnited Airlines
Wed 9/37:00 amGTF - PWM
2 stops12h 59mUnited Airlines
Deal found 7/28$469
This Delta deal was found by Cheapflights users on 7/29. 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 8/306:31 amPWM - GTF
2 stops18h 14mDelta
Wed 9/35:45 amGTF - PWM
2 stops10h 03mDelta
Deal found 7/29$488
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 8/126:10 amPWM - MSO
1 stop7h 28mUnited Airlines
Tue 8/196:30 amMSO - PWM
1 stop7h 26mUnited Airlines
Deal found 7/30$490
This Delta deal was found by Cheapflights users on 7/29. 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 10/46:33 amPWM - HLN
2 stops17h 41mDelta
Tue 10/71:00 pmHLN - PWM
2 stops33h 05mDelta
Deal found 7/29$536

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 July 30, 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

PortlandBillings

PWM - BIL

PWMBIL

Portland

Fri 8/29

3:32 pm-11:00 pm

1 stop9h 28m

Billings Logan Intl

Tue 9/2

5:49 am-3:30 pm

2 stops7h 41m

$294

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Sat 11/1

12:45 pm-11:13 pm

2 stops12h 28m

Missoula Johnson-Bell Field

Tue 11/4

8:00 am-10:19 pm

2 stops12h 19m

$319

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Tue 8/26

6:30 am-12:39 pm

1 stop8h 09m

Bozeman Gallatin Field

Sat 8/30

12:20 pm-11:59 pm

1 stop9h 39m

$333

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Thu 9/4

10:39 am-10:43 pm

2 stops14h 04m

Bozeman Gallatin Field

Tue 9/9

12:50 pm-9:59 pm

1 stop7h 09m

$356

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Tue 8/26

10:30 am-10:55 pm

2 stops14h 25m

Bozeman Gallatin Field

Sat 8/30

5:25 am-10:00 pm

2 stops14h 35m

$367

PortlandBozeman

PWM - BZN

PWMBZN

Portland

Thu 10/30

6:00 am-1:19 pm

1 stop9h 19m

Bozeman Gallatin Field

Mon 11/3

11:35 am-10:19 pm

2 stops8h 44m

$406

PortlandMissoula

PWM - MSO

PWMMSO

Portland

Fri 9/12

3:28 pm-11:18 pm

1 stop9h 50m

Missoula Johnson-Bell Field

Fri 9/19

12:50 pm-11:59 pm

1 stop9h 09m

$434

PortlandHelena

PWM - HLN

PWMHLN

Portland

Thu 10/30

3:20 pm-9:22 pm

1 stop8h 02m

Helena

Mon 11/3

6:40 am-11:17 pm

2 stops14h 37m

$444

PortlandGreat Falls

PWM - GTF

PWMGTF

Portland

Sat 8/30

10:50 am-9:28 pm

2 stops12h 38m

Great Falls

Wed 9/3

7:00 am-9:59 pm

2 stops12h 59m

$469

PortlandGreat Falls

PWM - GTF

PWMGTF

Portland

Sat 8/30

6:31 am-10:45 pm

2 stops18h 14m

Great Falls

Wed 9/3

5:45 am-5:48 pm

2 stops10h 03m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 22 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, 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 $478). 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 July 30, 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.

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 July 30, 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
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Overall

8.0

Entertainment

7.5

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 American Airlines. According to our data, you can fly for as low as $167. Users have also found prices from $246 and $255 on United Airlines and Delta, respectively.

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

    Most travelers choose Portland - Billings Logan Intl, Portland - Bozeman Gallatin Field 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, 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 $478). 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$311Average$602FlexibilityNo cancel feeOn-time71%
DeltaCheapest$318Average$621FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$340Average$659FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$416Average$585FlexibilityNo cancel feeOn-time63%

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