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Cheap flights from Montana to Portland from $130

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Portland departing on 12/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Montana to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 11:20 pmBIL-PWM
14h 20m2 stops
United Airlines Logo
5:45 am - 1:23 pmPWM-BIL
9h 38m2 stops
$299United Airlines
Find Deal
Thu, Feb 12 - Sat, Feb 21
Delta Logo
7:55 am - 7:38 pmMSO-PWM
9h 43m2 stops
Delta Logo
12:48 pm - 11:35 pmPWM-MSO
12h 47m2 stops
$319Delta
Find Deal
Sat, Jan 31 - Sat, Feb 7
Delta Logo
3:00 pm - 12:13 pmBZN-PWM
19h 13m2 stops
Delta Logo
4:53 pm - 11:37 pmPWM-BZN
8h 44m2 stops
$339Delta
Find Deal
Sat, Dec 6 - Fri, Dec 12
Delta Logo
7:25 am - 12:13 pmBZN-PWM
26h 48m2 stops
Delta Logo
6:08 am - 1:26 pmPWM-BZN
9h 18m1 stop
$375Delta
Find Deal
Sat, Dec 6 - Fri, Dec 12
American Airlines Logo
1:46 pm - 4:28 pmBZN-PWM
24h 42m2 stops
American Airlines Logo
5:17 pm - 12:54 pmPWM-BZN
21h 37m2 stops
$418American Airlines
Find Deal
Mon, Dec 8 - Mon, Dec 15
Alaska Airlines Logo
6:23 am - 10:54 pmMSO-PWM
14h 31m2 stops
Alaska Airlines Logo
12:46 pm - 11:55 pmPWM-MSO
13h 09m2 stops
$419Alaska Airlines
Find Deal
Fri, Jan 30 - Mon, Feb 9
Southwest Logo
6:30 am - 11:05 pmBZN-PWM
14h 35m2 stops
Southwest Logo
5:30 am - 6:30 pmPWM-BZN
15h 00m2 stops
$425Southwest
Find Deal
Tue, Mar 17 - Thu, Mar 19
Southwest Logo
10:15 am - 12:20 amBZN-PWM
12h 05m2 stops
Southwest Logo
11:50 am - 12:25 amPWM-BZN
14h 35m2 stops
$495Southwest
Find Deal
Mon, Nov 24 - Wed, Nov 26
Alaska Airlines Logo
6:23 am - 10:54 pmMSO-PWM
14h 31m2 stops
Alaska Airlines Logo
12:46 pm - 11:55 pmPWM-MSO
13h 09m2 stops
$509Alaska Airlines
Find Deal
Mon, Feb 2 - Mon, Feb 9
American Airlines Logo
1:05 pm - 4:55 pmMSO-PWM
25h 50m1 stop
American Airlines Logo
5:30 pm - 12:25 pmPWM-MSO
20h 55m1 stop
$574American Airlines
Find Deal
Thu, May 7 - Mon, May 11

American Airlines flights from Montana to Portland, Maine

Our best American Airlines deals on Montana to Portland, Maine flight tickets
American Airlines
Dec 8
BZN1:46 pmBozeman Gallatin Field
24h 42m
2 stops
PWM4:28 pmPortland
Dec 15
PWM5:17 pmPortland
21h 37m
2 stops
BZN12:54 pmBozeman Gallatin Field
$418
Find similar
American Airlines
May 7
MSO1:05 pmMissoula Johnson-Bell Field
25h 50m
1 stop
PWM4:55 pmPortland
May 11
PWM5:30 pmPortland
20h 55m
1 stop
MSO12:25 pmMissoula Johnson-Bell Field
$574
Find similar
American Airlines
Apr 1
BZN7:00 amBozeman Gallatin Field
7h 55m
1 stop
PWM4:55 pmPortland
Apr 5
PWM5:30 pmPortland
27h 45m
1 stop
BZN7:15 pmBozeman Gallatin Field
$575
Find similar

Southwest flights from Montana to Portland, Maine

Our best Southwest deals on Montana to Portland, Maine flight tickets
Southwest
Mar 17
BZN6:30 amBozeman Gallatin Field
14h 35m
2 stops
PWM11:05 pmPortland
Mar 19
PWM5:30 amPortland
15h 00m
2 stops
BZN6:30 pmBozeman Gallatin Field
$425
Find similar
Southwest
Nov 19
BZN5:30 amBozeman Gallatin Field
14h 45m
2 stops
PWM10:15 pmPortland
Nov 21
PWM3:00 pmPortland
11h 15m
2 stops
BZN12:15 amBozeman Gallatin Field
$445
Find similar
Southwest
Nov 24
BZN10:15 amBozeman Gallatin Field
12h 05m
2 stops
PWM12:20 amPortland
Nov 26
PWM11:50 amPortland
14h 35m
2 stops
BZN12:25 amBozeman Gallatin Field
$495
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Portland, Maine 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, momondo users made 832,500 searches. Data last updated November 12, 2025.
Use the filters below to find and compare flights from Montana to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillingsPortland

BIL - PWM

BILPWM

Billings Logan Intl

Thu 2/12

7:00 am-11:20 pm

2 stops14h 20m

Portland

Sat 2/21

5:45 am-1:23 pm

2 stops9h 38m

$299

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Sat 1/31

7:55 am-7:38 pm

2 stops9h 43m

Portland

Sat 2/7

12:48 pm-11:35 pm

2 stops12h 47m

$319

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Sat 12/6

3:00 pm-12:13 pm

2 stops19h 13m

Portland

Fri 12/12

4:53 pm-11:37 pm

2 stops8h 44m

$339

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Sat 12/6

7:25 am-12:13 pm

2 stops26h 48m

Portland

Fri 12/12

6:08 am-1:26 pm

1 stop9h 18m

$375

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Mon 12/8

1:46 pm-4:28 pm

2 stops24h 42m

Portland

Mon 12/15

5:17 pm-12:54 pm

2 stops21h 37m

$418

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Fri 1/30

6:23 am-10:54 pm

2 stops14h 31m

Portland

Mon 2/9

12:46 pm-11:55 pm

2 stops13h 09m

$419

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Tue 3/17

6:30 am-11:05 pm

2 stops14h 35m

Portland

Thu 3/19

5:30 am-6:30 pm

2 stops15h 00m

$425

BozemanPortland

BZN - PWM

BZNPWM

Bozeman Gallatin Field

Mon 11/24

10:15 am-12:20 am

2 stops12h 05m

Portland

Wed 11/26

11:50 am-12:25 am

2 stops14h 35m

$495

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Mon 2/2

6:23 am-10:54 pm

2 stops14h 31m

Portland

Mon 2/9

12:46 pm-11:55 pm

2 stops13h 09m

$509

MissoulaPortland

MSO - PWM

MSOPWM

Missoula Johnson-Bell Field

Thu 5/7

1:05 pm-4:55 pm

1 stop25h 50m

Portland

Mon 5/11

5:30 pm-12:25 pm

1 stop20h 55m

$574

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Montana to Portland, Maine

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from Montana is in December. Flight prices, which tend to average around $394, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of December, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $485.

What is the cheapest day to depart on your flight to Portland, Maine?

On average, the least expensive day to fly to Portland, Maine from Montana is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $619. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Montana because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $851.

What is the cheapest time of day to depart on your flight to Portland, Maine?

At noon is the cheapest time of day to fly from Montana to Portland, Maine when you can find flight prices for as low as $652. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the afternoon because they tend to be around $817. Of course, these prices can vary depending on the time of year and what airport you fly to.

Can stopping save me money on Montana to Portland, Maine flights?

You could potentially save up to 45% on your flight if you consider stops on a Montana to Portland, Maine flight.

Cheap Montana to Portland, Maine flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Montana to Portland, Maine

Direct flights

None
There are no direct flights from Montana to Portland, Maine. There are no popular flight routes from Montana to Portland, Maine.
Search flight deals

  • When did momondo last update prices for flights from Montana to Portland Airport?

    Prices for flights from Montana to Portland Airport are updated daily.

  • How many operators does momondo search for flights from Montana to Portland Airport?

  • How old do you have to be to fly from Montana to Portland Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Montana to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Montana to Portland, Maine

Compare and see reviews for airlines that fly from Montana to Portland, Maine with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $179Free CancellationRating
7.9
8,009 reviews
Search Delta flights
American AirlinesPriceFrom $302Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
SouthwestPriceFrom $419Free CancellationRating
8.0
4,235 reviews
Search Southwest flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Boothbay Harbor
Jackson
Conway
Lewiston
Freeport
Brunswick
Bartlett
Auburn
Gorham
Windham
Intervale
Oxford
Bath
Georgetown
Falmouth
Tamworth

Why use momondo?

Why should I use momondo to find a flight deal from Montana to Portland?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Montana to Portland. momondo saves you time and could save you money on your trip.

Can I find flights from Montana to Portland with flexible booking policies on momondo?

Yes. All flights to Portland from Montana on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Montana to Portland?

momondo helps you find the best flight between Montana and Portland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Montana to Portland right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Montana to Portland now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portland and let you know when they change.

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