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$165+ Cheap flights from Montana to Portland, ME (PWM)

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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — PWM
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Montana to Portland

Keep the following information in mind while searching for Montana to Portland flight deals. Data was last updated September 16, 2025.

Round-trip from

$319
(Delta)

One-way from

$165
(Delta)

Popular in

February

Cheapest in

May

Average price

$560
From Montana to Portland
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One-way flight from Montana to Portland
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Highest demand for flights based on searches. 18% potential increase in price ($142 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Montana to Portland

Cheapest flights from Montana to Portland
Explore the most affordable flight options available from Montana to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Delta deal was found by Cheapflights users on 9/14. 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 10/288:00 amMSO - PWM
2 stops13h 09mDelta
Sat 11/112:00 pmPWM - MSO
2 stops11h 40mDelta
Deal found 9/14$319
This Delta deal was found by Cheapflights users on 9/14. 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 10/212:01 pmBZN - PWM
2 stops18h 48mDelta
Tue 10/286:00 amPWM - BZN
1 stop9h 19mDelta
Deal found 9/14$370
This Delta deal was found by Cheapflights users on 9/14. 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 10/212:01 pmBZN - PWM
2 stops18h 48mDelta
Sat 10/256:00 amPWM - BZN
1 stop9h 19mDelta
Deal found 9/14$381
This Delta deal was found by Cheapflights users on 9/14. 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 10/212:01 pmBZN - PWM
2 stops18h 48mDelta
Thu 10/304:48 pmPWM - BZN
2 stops9h 16mDelta
Deal found 9/14$386
This American Airlines deal was found by Cheapflights users on 9/15. 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 12/121:46 pmBZN - PWM
3 stops19h 49mAmerican Airlines
Fri 1/95:51 amPWM - BZN
2 stops10h 41mAmerican Airlines
Deal found 9/15$393
This Delta deal was found by Cheapflights users on 9/14. 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 10/212:29 pmBZN - PWM
2 stops18h 20mDelta
Fri 10/316:00 amPWM - BZN
1 stop9h 19mDelta
Deal found 9/14$396
This Delta deal was found by Cheapflights users on 9/14. 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 10/222:29 pmBZN - PWM
2 stops21h 29mDelta
Wed 10/296:00 amPWM - BZN
1 stop9h 19mDelta
Deal found 9/14$405
This Delta deal was found by Cheapflights users on 9/14. 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 10/222:29 pmBZN - PWM
2 stops21h 29mDelta
Tue 10/285:42 amPWM - BZN
2 stops9h 37mDelta
Deal found 9/14$410
This Southwest deal was found by Cheapflights users on 9/14. 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.
Wed 10/2211:55 amBZN - PWM
2 stops8h 35mSouthwest
Tue 10/2812:00 pmPWM - BZN
2 stops13h 25mSouthwest
Deal found 9/14$413
This Delta deal was found by Cheapflights users on 9/14. 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 10/222:29 pmBZN - PWM
2 stops21h 29mDelta
Sat 10/256:00 amPWM - BZN
1 stop9h 19mDelta
Deal found 9/14$416
This United Airlines deal was found by Cheapflights users on 9/14. 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 10/1712:41 pmFCA - PWM
1 stop7h 03mUnited Airlines
Wed 10/226:14 amPWM - FCA
1 stop7h 21mUnited Airlines
Deal found 9/14$429
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/184:08 pmFCA - PWM
2 stops15h 51mUnited Airlines
Wed 10/226:14 amPWM - FCA
2 stops11h 54mUnited Airlines
Deal found 9/15$439

Cheapflights Fare Finder

 
Customize your flight search to find flights from Montana to Portland 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 September 16, 2025.
Use the filters below to find and compare flights from Montana to Portland that are best for you.

Fly from

Montana

Fly to

Portland

Route

Depart

Return

Price

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Tue 10/28

8:00 am-11:09 pm

2 stops13h 09m

Portland

Sat 11/1

12:00 pm-9:40 pm

2 stops11h 40m

$319

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Fri 10/24

2:01 pm-11:20 am

2 stops19h 19m

Portland

Tue 10/28

6:00 am-1:19 pm

1 stop9h 19m

$370

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Tue 10/21

2:29 pm-1:58 pm

2 stops21h 29m

Portland

Wed 10/29

6:00 am-1:19 pm

1 stop9h 19m

$370

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Tue 10/21

2:01 pm-10:49 am

2 stops18h 48m

Portland

Tue 10/28

6:00 am-1:19 pm

1 stop9h 19m

$370

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Fri 10/24

2:29 pm-1:58 pm

2 stops21h 29m

Portland

Wed 10/29

4:48 pm-11:37 pm

2 stops8h 49m

$375

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Sat 10/25

2:01 pm-10:49 am

2 stops18h 48m

Portland

Tue 10/28

5:42 am-1:19 pm

2 stops9h 37m

$375

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Sat 10/25

2:01 pm-10:49 am

2 stops18h 48m

Portland

Wed 10/29

4:48 pm-12:04 am

2 stops9h 16m

$375

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Fri 10/24

2:01 pm-11:20 am

2 stops19h 19m

Portland

Thu 10/30

4:48 pm-12:04 am

2 stops9h 16m

$386

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Fri 10/24

2:01 pm-11:20 am

2 stops19h 19m

Portland

Fri 10/31

6:00 am-1:19 pm

1 stop9h 19m

$396

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Sat 10/25

2:01 pm-10:49 am

2 stops18h 48m

Portland

Fri 10/31

1:46 pm-11:37 pm

2 stops11h 51m

$401

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 31 results
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Best time to book a flight from Montana to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Montana 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 Montana to Portland

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

Currently, January is the cheapest month in which you can book a flight from Montana to Portland, Maine (average of $296). Flying from Montana to Portland, Maine in July is currently the most expensive (average of $394). 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.

Related info for your journey

Find useful and relevant information for your journey from Montana to Portland. 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 into for flights to Portland from Montana?

    For a flight from Montana to Portland, you will be flying into Portland. Portland (PWM) is just 2.9 mi from the center of the city.

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

    There are many flights that can get you from Montana to Portland, Maine in 7h 03m. Fly via Delta, United Airlines, or American Airlines to get the fastest option. The distance between Montana and Portland, Maine is about 2104 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    While some choose either Kalispell Glacier Park - Portland or Helena - Portland, Bozeman Gallatin Field - Portland is the most popular route from Montana to Portland, Maine.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Montana to Portland 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 Montana to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Montana to Portland, Maine (average of $296). Flying from Montana to Portland, Maine in July is currently the most expensive (average of $394). 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

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Brunswick
North Conway
Auburn
Conway
Lewiston

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Alternative routes for Montana to Portland

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Top 4 airlines flying from Montana to Portland

Discover the top 4 airlines that operate flights from Montana to Portland. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$298Average$633FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$302Average$544FlexibilityNo cancel feeOn-time71%
DeltaCheapest$312Average$508FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$383Average$496FlexibilityNo cancel feeOn-time63%

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