$155 Find Cheap Flights from Portland to Montana

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Montana departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Montana

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Montana, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Montana, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Portland to Montana

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Bozeman
Bozeman1 stop$357
Kalispell
Kalispell2 stops$528
Missoula
Missoula1 stop$439
Billings
Billings2 stops$409
Great Falls
Great Falls1 stop$691
Helena
Helena1 stop$688
Bozeman
Bozeman1 stop$357
Kalispell
Kalispell2 stops$528
Missoula
Missoula1 stop$439
Billings
Billings2 stops$409
Great Falls
Great Falls1 stop$691
Helena
Helena1 stop$688

Book Cheap Portland to Montana Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Montana that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Montana

Fri, Sep 11 - Mon, Sep 14
American Airlines Logo
8:00 am - 3:20 pm
PWM
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BZN
9h 20m
1 stop
American Airlines Logo
3:29 pm - 12:13 am
BZN
-
PWM
6h 44m
1 stop
$357American Airlines
Mon, May 25 - Tue, Jun 2
United Airlines Logo
6:00 am - 11:44 am
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BZN
7h 44m
1 stop
United Airlines Logo
11:38 am - 11:30 pm
BZN
-
PWM
9h 52m
1 stop
$374United Airlines
Sat, Jul 4 - Sat, Jul 11
Delta Logo
2:51 pm - 7:45 pm
PWM
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BZN
6h 54m
1 stop
Delta Logo
6:00 am - 1:46 pm
BZN
-
PWM
5h 46m
1 stop
$388Delta
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
8:00 am - 3:25 pm
PWM
-
BZN
9h 25m
1 stop
American Airlines Logo
6:26 am - 6:53 pm
BZN
-
PWM
10h 27m
1 stop
$394American Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
8:00 am - 3:25 pm
PWM
-
BZN
9h 25m
1 stop
American Airlines Logo
6:26 am - 6:53 pm
BZN
-
PWM
10h 27m
1 stop
$395American Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
8:00 am - 3:25 pm
PWM
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BZN
9h 25m
1 stop
American Airlines Logo
11:55 am - 11:51 pm
BZN
-
PWM
9h 56m
2 stops
$399American Airlines
Tue, Aug 25 - Tue, Sep 1
American Airlines Logo
8:00 am - 3:25 pm
PWM
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BZN
9h 25m
1 stop
American Airlines Logo
6:26 am - 10:00 pm
BZN
-
PWM
13h 34m
2 stops
$400American Airlines
Sat, Jun 13 - Sat, Jun 20
Delta Logo
6:15 am - 5:20 pm
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BZN
13h 05m
2 stops
Delta Logo
2:25 pm - 12:52 am
BZN
-
PWM
8h 27m
1 stop
$409Delta
Tue, Sep 29 - Tue, Oct 6
United Airlines Logo
6:00 am - 3:23 pm
PWM
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BZN
11h 23m
2 stops
United Airlines Logo
3:40 pm - 9:23 am
BZN
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PWM
15h 43m
2 stops
$419United Airlines
Fri, May 29 - Tue, Jun 2
Delta Logo
2:05 pm - 12:22 am
PWM
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MSO
12h 17m
2 stops
Delta Logo
5:30 am - 11:09 pm
MSO
-
PWM
15h 39m
2 stops
$478Delta
Booking Insights

KAYAK's insights & trends for Portland to Montana flights

Get data-powered insights and trends into flights from Portland to Montana to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Portland, Maine to Montana?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland, Maine to Montana departing in September.

What is the cheapest month to fly from Portland to Montana?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Montana, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Montana is January, when tickets cost $203 (return) on average. On the other hand, the most expensive months are November and October, when the average cost of round-trip tickets is $398 and $350 respectively.

How far in advance should I book a flight from Portland to Montana?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Montana, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Montana, you should book around 3 weeks before departure, which saves you about 47% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$155
Most popular time to fly with an average 22% increase in price.
Flight from Portland to Bozeman

FAQs - booking Montana flights

  • How does KAYAK find such low prices on flights from Portland to Montana?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Montana.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Montana?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Montana is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Montana?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Montana with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Montana?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Montana up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Portland to Montana

 
See real verified KAYAK customer reviews for airlines flying from Portland to Montana. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Montana? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8463 reviews
8.5Crew
7.2Food
7.8Entertainment
7.9Comfort
8.1Boarding
Airline reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

4.0 OkayBradley, Apr 2026
RDU - ATL
Read more Delta reviews

The agent at check in and at the gate were less than thrilled to be at work. I'm not a fan of Kayak's placement on the plane. I got put in the middle seat and none of my preferences were used.

In ATL they have two sets of departure screens. Follow what is on your airline's departure board - the ATL Airport Authority departure board had completely incorrect details about the gate assignment for my flight, which would have made me miss boarding.

Flight was delayed it was hot while sitting on the plane, one engine was working on the plane until they had to do some jimmy rigging down the runway in order for the other engine to charge up. It was ridiculous

The flight was very good and the staff was very friendly and helpful!

The only thing I would say is we tried to get on a standby earlier flight, but with our fair we couldn’t. That seems senseless to leave with open seats..

Very easy to use and convenient, you can perform any action within the same portal

In a world of delays, Delta was on time both ways! Boarding was fast and efficient. Staff was friendly. AND wifi worked.

WiFi didn’t work. Flight delayed 3 hours Crew members were illiterate Seat lean back did not work.

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

This wasn't my experience with Delta. It was just the Pegasus flight. Seats were very hard. Staff was kinda rough. Not very nice. Charged me for snacks. For a 4 hour flight I would've expected more.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

I would like a refund for the extra cost the seat I paid for. An oversized person sat next to me and I couldn’t fit on my seat and had to move to another seat.

Boarding gate at LAX was too crowded—two gates next to one another

The flight was delayed about an hour for a maintenance specialist to approve the maintenance repair

This flight was delayed but it worked in my favor because my Atlanta to Dallas flight was delayed.

This was a hard flight. 3 delays out of OKC (1 on the Tarmac). Delay in Atlanta coming to Dallas. total travel time was the equivalent of driving from OKC to Atlanta.

Like: flights are on time, good boarding process Can improve: planes are old, improve entertainment and make space more comfortable

Had to wait for a gate for a long time, then waited on the run way for a long time before leaving. The actual flights part was good.

The airplane was an old model, the overhead didn’t have enough room for people’s items and made boarding and boarding disappointing and stressful. Crew allowed passengers to bring more than the permitted baggage sizes.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

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

Information on your arrival and departure airports