$79 Find Cheap Flights from Portland to Big Sky

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 Big Sky departing on 8/19. 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

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Cheap Flights from Portland to Big Sky (PDX-BZN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Big Sky 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 Big Sky

Wed, Aug 27 - Wed, Sep 3
Hawaiian Airlines Logo
9:30 pm - 12:12 amPDX-BZN
1h 42mnonstop
Hawaiian Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$137Hawaiian Airlines
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Tue, Aug 19 - Sat, Aug 23
Alaska Airlines Logo
9:35 pm - 12:11 amPDX-BZN
1h 36mnonstop
Alaska Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$138Alaska Airlines
Find Deal
Tue, Aug 19 - Mon, Aug 25
Hawaiian Airlines Logo
9:35 pm - 12:11 amPDX-BZN
1h 36mnonstop
Hawaiian Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$147Hawaiian Airlines
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Wed, Aug 20 - Mon, Aug 25
Alaska Airlines Logo
9:30 pm - 12:12 amPDX-BZN
1h 42mnonstop
Alaska Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$148Alaska Airlines
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Fri, Sep 12 - Sun, Sep 14
Hawaiian Airlines Logo
9:30 pm - 12:12 amPDX-BZN
1h 42mnonstop
Hawaiian Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$157Hawaiian Airlines
Find Deal
Thu, Sep 18 - Sun, Sep 21
Alaska Airlines Logo
9:30 pm - 12:12 amPDX-BZN
1h 42mnonstop
Alaska Airlines Logo
5:22 am - 6:18 amBZN-PDX
1h 56mnonstop
$158Alaska Airlines
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Wed, Aug 27 - Wed, Sep 3
United Airlines Logo
10:55 am - 5:03 pmPDX-BZN
5h 08m1 stop
United Airlines Logo
4:20 pm - 9:01 pmBZN-PDX
5h 41m1 stop
$177United Airlines
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Wed, Aug 27 - Sat, Aug 30
Delta Logo
5:30 am - 11:16 amPDX-BZN
4h 46m1 stop
Delta Logo
7:35 am - 10:34 amBZN-PDX
3h 59m1 stop
$186Delta
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Tue, Aug 19 - Mon, Aug 25
United Airlines Logo
7:45 am - 3:01 pmPDX-BZN
6h 16m1 stop
United Airlines Logo
4:20 pm - 10:42 pmBZN-PDX
7h 22m1 stop
$190United Airlines
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Wed, Aug 27 - Wed, Sep 3
Delta Logo
6:20 am - 2:27 pmPDX-BZN
7h 07m1 stop
Delta Logo
5:30 am - 10:34 amBZN-PDX
6h 04m2 stops
$191Delta
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Good to know

Low seasonNovember
Cheapest flight$79
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Portland to Bozeman

When to book flights from Portland to Big Sky

Are your dates flexible? Find out the best times to travel from Portland to Big Sky based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Portland to Big Sky

  • Which airports will I be using when flying from Portland to Big Sky?

    When flying out of Portland you’ll be using Portland. Big Sky does not have its own airport so you’ll be flying into nearby Bozeman Gallatin Field airport, which is 37.5 mi away.

  • How long does a flight from Portland to Big Sky take?

    Direct flights cover the 552 miles separating Portland and Big Sky in about 1h 36m.

  • How many flights are there between Portland and Big Sky?

    8 direct flights run between Portland and Big Sky on a daily basis. On average, there are about 56 departures each week.

  • What’s the cheapest day of the week to fly between Portland and Big Sky?

    Consider leaving on a Wednesday and avoid Tuesdays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

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

    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 Big Sky.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Big Sky from Portland 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 Big Sky?

    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 to Big Sky with an airline and back to Portland with another airline.

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

    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 to Big Sky from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Portland to Big Sky?

    In the last 72 hours, the cheapest one-way ticket between Portland and Big Sky found on KAYAK was with Alaska Airlines for $79. Hawaiian Airlines offered a round-trip connection from $137 and Alaska Airlines from $138.

Top tips for finding cheap flights from Portland to Big Sky

  • There is no airport in Big Sky. Instead, you’ll be flying into Gallatin Field Airport when flying between Portland and Big Sky.
  • The cheapest flight from Portland to Big Sky was found 44 days before departure, on average.
  • Book at least 2 weeks before departure in order to get a below-average price.
  • High season is considered to be November, December and January. The cheapest month to fly is January.

Reviews of the top 3 airlines serving Portland to Big Sky

 
Need help choosing which airline to fly with from Portland to Big Sky? 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.
8.0
Alaska AirlinesOverall score based on 10000 reviews
7.1Food
8.5Crew
8.1Boarding
7.1Entertainment
7.8Comfort
Airline reviews

TERRIFIC! Thank you all. Jason Robert Kidwell My favorite flight attendants.

10.0 ExcellentJason, Jul 2025PDX - DCA
Read more Alaska Airlines reviews

TERRIFIC! Thank you all. Jason Robert Kidwell My favorite flight attendants.

I liked Alaska better than other carriers that I have EVER used. Unfortunately, the plane from LAX to Guanacaste leg of my journey had some mechanical problems and had to return to LAX - causing my journey to be very long and added a day to my total trip. The Airline was very prompt in offering their apology and have given me credit to use for my next flight. I thought the terminal in LAX was too cold for comfort, especially if there is a long wait between flights.

Not having to pay 160$ for a 20 lb and 12 lb bag that were clearly under 50 lbs and they overcharged me for them

We have always flown with Alaska when we can. As they have great customer service. This trip we had to transfer to Air LINGUS in Denver to go to Dublin. That’s where things went bad! Our checked luggage didn’t arrive. The process to make a claim was way more complicated than it should be. It took 5 days to recover our luggage. The whole time we couldn’t talk to a real person who could tell us anything. The whole time Alaska blamed Air lingus and vis a versa. No one seemed want to help us. That was the worst part.

I'm a platinum member with American Airlines, however, my ticket did not display status and thus I did not board with an early group. I traveled with my two daughters and we were given a row of seats that did not recline. Not the treatment I would have expected for a platinum customer. The flight was also a bit late leaving Portland. Also on my flight to Portland we were not given premium seats. In fact, we were in the last row of the aircraft.

5 hour delay from Portland to Newark. Boarded and then were told we had to get off and wait five hours for flight. No food vouchers or any other compensation because they said it was an air traffic control issue. Plane is bare minimum like a discount airline. They have free entertainment but you have to get to it on your own device no screens in the seats

Very good. Gate personnel were excellent flight attendants were also able to change my seat at the last minute everyone, courteous, polite, and.

On time, smooth take off and landing, efficient boarding. Gate staff excellent, stewardess grumpy, but civil enough.

No WiFi available. It was too late to order food also. Guy next to me was huge (not fat) so had his shoulder & thigh next to me the whole way. Plane was delayed leaving PDX due to 8 other planes waiting. Not my best Alaska airlines flight.

Check in, they should have told me that upon arrival i needed to exit the secure area and re-check in with Eva Air. I wasn't sure what to do upon arrival at S.F.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

Check-in process at SEA was very difficult, e.g., how to check-in and finding where to go to check-in. Staff that helped me was friendly. Security process very disorganized. Stopped at gate C2A to try to get on an earlier flight and four staff didn’t acknowledge me, some of the worst customer service I’ve experienced at a gate counter.

Flight got delayed and it was very inconvenient . Had to come with another carrier. Had to spend one more night in San Francisco.

Logging into next flight was an issue as I never received a confirmation code

Alaska airlines is not what I expected Very disappointed Unfriendly Discouraging Very bad customer service, heartbroken trying to explain to them my situation.

I could not check in ahead of time. Kayak did not give me a proper confirmation number to check in.

I loved flying Hawaiian Air! We didn’t pay to sit together, but we were able to anyway. They had usb charging ports and even outlets in some seats. They served a hot sandwich that was not very good, but we were still pleasantly surprised. The staff was very nice. The seats really made my booty hurt but maybe I’m just not used to sitting so long. Also, the AC was really cold even though I was wearing pants, a hoodie, and a light blanket.

A second drink service on a 6 hour flight would have been helpful.

The steward staff was particularly friendly and helpful. They smiled a lot and seemed anxious to be sure we enjoyed the flight.

Everything was good for the price I paid. Crew was very nice.

The worst flight experience I've ever had. Our flight was delayed 14 whole hours because the flight crew never showed up. We had to wait in a two hour line to get our new boarding passes, we were told we had no other option but to fly at 10pm (we didn't depart until 11:45pm). Everyone had to contact their hotels and car rental places, workplaces, etc. since we lost an entire day's worth of travel. The crew showed up at 10:15, which was past the time we were supposed to board. They were laughing and being completely smug when they boarded, and they took another hour to board us onto our flight. The flight crew never came to check in on us, we were quickly given one drink and sandwich and they turned off the lights and were negligent the rest of the trip. My mom asked three attendants for a seat belt extender, they never brought one. I was dehydrated and never received another drink. They were very rude and unfriendly, we had been up since 4am the morning of our flight and didn't land in our destination until 2am the next day (5am local time). This was unacceptable service and treatment, these flights are not cheap and we were inconvenienced out of an entire day of travel. This was 100% avoidable and was the fault of Hawaiian Airlines, and their crews inability to show up to work on time.

Everything you need to know for your flight from Portland to Big Sky

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