$84 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 1/9. 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 from Portland to Big Sky

Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Free to useThere are no hidden charges or fees.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$137
Overall average: $183
Alaska Airlines
Tue 1/27Sat 1/31
PDX - BZN • Non-stop
Cheapest one-way
$84
Typical prices: $88-$248
Delta
Fri 1/9
PDX - BZN • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Big Sky!
Flight Deals
Useful Info
Flight Deals

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

Tue, Jan 27 - Sat, Jan 31
Alaska Airlines Logo
10:32 am - 1:06 pm
PDX
-
BZN
1h 34mnonstop
Alaska Airlines Logo
1:46 pm - 2:43 pm
BZN
-
PDX
1h 57mnonstop
$137Alaska Airlines
Sat, Jan 24 - Tue, Feb 3
Delta Logo
5:00 pm - 11:17 pm
PDX
-
BZN
5h 17m1 stop
Delta Logo
5:15 am - 9:09 am
BZN
-
PDX
4h 54m1 stop
$147Delta
Tue, Jan 27 - Sat, Jan 31
Alaska Airlines Logo
5:35 pm - 11:56 pm
PDX
-
BZN
5h 21m1 stop
Alaska Airlines Logo
7:20 am - 12:38 pm
BZN
-
PDX
6h 18m1 stop
$156Alaska Airlines
Sat, Jan 24 - Mon, Feb 2
Delta Logo
1:30 pm - 8:25 pm
PDX
-
BZN
5h 55m1 stop
Delta Logo
3:00 pm - 6:50 pm
BZN
-
PDX
4h 50m1 stop
$157Delta
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
2:15 pm - 10:15 pm
PDX
-
BZN
7h 00m1 stop
Southwest Logo
3:50 pm - 10:15 pm
BZN
-
PDX
7h 25m1 stop
$159Southwest
Tue, Jan 27 - Sat, Jan 31
Southwest Logo
11:30 am - 10:15 pm
PDX
-
BZN
9h 45m2 stops
Southwest Logo
10:35 am - 7:30 pm
BZN
-
PDX
9h 55m2 stops
$161Southwest
Wed, Jan 21 - Mon, Jan 26
Southwest Logo
9:00 am - 10:15 pm
PDX
-
BZN
12h 15m2 stops
Southwest Logo
3:50 pm - 10:15 pm
BZN
-
PDX
7h 25m1 stop
$164Southwest
Tue, Jan 27 - Sat, Jan 31
Alaska Airlines Logo
10:32 am - 1:06 pm
PDX
-
BZN
1h 34mnonstop
Alaska Airlines Logo
11:22 am - 2:00 pm
BZN
-
PDX
3h 38m1 stop
$167Alaska Airlines
Sat, Jan 17 - Sun, Jan 18
Alaska Airlines Logo
10:32 am - 1:06 pm
PDX
-
BZN
1h 34mnonstop
Alaska Airlines Logo
7:20 am - 12:38 pm
BZN
-
PDX
6h 18m1 stop
$177Alaska Airlines
Sat, Jan 24 - Sat, Jan 31
Delta Logo
7:10 am - 11:00 am
PDX
-
BZN
26h 50m2 stops
Delta Logo
5:15 am - 9:09 am
BZN
-
PDX
4h 54m1 stop
$181Delta
Useful Info

Good to know

Low seasonNovember
Cheapest flight$84
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 18% 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 33m.

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

    4 direct flights run between Portland and Big Sky on a daily basis. On average, there are about 32 departures each week.

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

    Consider leaving on a Monday and avoid Sundays 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 Saturdays.

  • 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 Hawaiian Airlines for $68. Alaska Airlines offered a round-trip connection from $137 and Hawaiian Airlines from $137.

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 37 days before departure, on average.
  • Book at least 1 week before departure in order to get a below-average price.
  • High season is considered to be May, June and July. The cheapest month to fly is January.

Reviews of the top 4 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 11448 reviews
8.5Crew
7.1Food
8.1Boarding
7.8Comfort
7.0Entertainment
Airline reviews

Flight was delayed but still made it to Phoenix on time. Boarding went quickly, the flight was smooth.

8.0 ExcellentAnonymous, Dec 2025
PDX - PHX
Read more Alaska Airlines reviews

Flight was delayed but still made it to Phoenix on time. Boarding went quickly, the flight was smooth.

The food selections were not good, and entertainment was non existent.

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

It was all good, no delays which was a worry. All great

It was a pleasant experience. Considering we paid over $3000 for first class there really wasn’t anything special about first class. All the seats looked the same and everyone got the same great customer service. The only thing that was different between first class and couch was the drinks and the meal. We wouldn’t waste that much $ on first class on that plane again.

This was more with the third party booking through Kayak but my KTN for Pre-TSA, even though I entered it, wasn't assigned to my ticket when I got to the airport. I had to go through regular security. Also the Alaska app had trouble loading my ticket in the first place and I had to ask for it to be printed. Alaska Airlines was great but wanted you to know about this hiccup in the ticketing interface.

Process of checking bag, boarding, etc. was all very quick, easy, and streamlined. Only problem I had was the seating: very cramped and uncomfortable, but I suppose that’s the perils of coach. Thankfully it wasn’t a super long flight so it didn’t ruin the experience overall.

The boarding was confusing because the PA system at PDX was so quiet you couldn’t hear anything being said . The seats were uncomfortable. The food was pretty bad and I normally don’t mind airplane food. The flight attendants were not friendly. I learned upon check in that Hawaiian airlines had reassigned our seats of the second leg of the trip. I had confirmed and paid for special seats but they put me and my companion on standard seats in different rows. Hawaiian also did the same on my return flight after the flight times had changed. I happened to go online to check my reservation and saw the flight had changed. I gad received no notice. I saw that my confirmed seats that I had paid extra were gone. After much back and forth with the airlines they refused to correct their error. I showed them confirmation documents of my seat reservation and receipt of payment but they refused to correct the seat change or reimburse me. I had to pay $200 again to reserve the original seats. Shameful and manipulative. They basically held me hostage. If I wanted to be in that flight I had to pay up.

When I bought my tickets I up great my seats for extra $104 each seats 8A and 8B in the way back from Portland to Palm Springs they gave me the seats 15. I thought it was for round trip same seats . So I was very disappointed ☹️

One disappointment. There was a gate change from B8 to B10, they had announced it maybe 20 minutes before the boarding time, possibly less. I didn’t hear the announcement as I was listening to music on my head phones at B8. At the boarding time, I got up and asked the gal at the B8 boarding desk, why the destination sign had not changed and if the flight was delayed as there was no plane behind her through the window, she said that perhaps the flight was delayed and the screen will probably update in -5 minutes ( she apparently didn’t know the boarding gate was changed ( 2 down from our location) I put my headphones on and went back to sit down . Just before the B10 door closed, I got a phone call asking me if I was still taking the flight, I said. “Yes” but I was at the gate stated on my ticket B8, then I was informed of the gate change, I got up and ran to the gate, and down the hallway to the jet ramp. I was the last to board!! Very frustrating . I was shocked that I got no emails or text messages from Alaska informing me of a last minute change!!

Original flight was cancelled and when i was rebooked by the airline, they couldn't seat me in the same type of seat as I had originally booked (went from window/aisle to middle/middle and one was a bulkhead seat, and other wasn't in the same class)

Lady Pilot was perfect in every way wheels up to wheels down communication, professionalism, excellent on time departure and on time arrival, excellent communication! Fantastic job with Superb attitude!!

The food is terrible. The staff is wonderful. Comfort is good.

Left on time, a bit delayed due to headwinds most of the trip.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

Unfortunately, I was put into the middle seat in the first row of premium seating. Sounds nice right? No! that is the worst seat in the plane. I wish I was in economy rather than be in that seat! There is no seat back pocket, no tray table, no charger. Nothing! so unless you're row mates are willing to let you share their basic amenities any flyer should have, you are stuck. It was the worst experience ever! And the flight attendant forgot to take my drink order. I felt like the forgotten flyer.

Delayed and cancelled flights were hard and very stressful, both ways!

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

I had to cancel the flight because with a 3 hour delay for 'unexpected maintenance' in getting to LAX, I couldn't connect to an overseas flight that I had booked on Scandinavian Air.

The flight was CANCELED!!! Can’t get much more “poor” than that. I had to switch to American Airlines, add another layover and got home in Honolulu 4 hours later than I was supposed to be home. One bright spot was Josh with Alaska Airlines at SFO. He got me on a United Flight that got me home a few hours before I would have. Without him I would have gotten home almost 7 hours after my originally scheduled flight.

Canceled my flight within 24 hours, causing me arriving home midnight. Will never book Hawaiian airlines anymore

I like Hawaiian, it was great that they had good internet connection across the Pacific Ocean, thanks to Star Link satellites. The seating was comfortable, ( I was in economy ). Maybe I missed it, but I only got offered a beverage once. It was a nonstop flight KOA to SMF. I would take it again next time I go that way.

I always love flying Hawaii and I have nothing to add

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

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

Complete your trip to Big Sky with a hotel stay or car rental