$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 4/11. 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

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Everything you should know

Cheapest round-trip
$137
Overall average: $277
Alaska Airlines
Wed 4/15Sat 4/18
PDX - BZN • Non-stop
Cheapest non-stop
$137
Typical prices: $157-$277
Alaska Airlines
Sat 4/11Wed 4/15
PDX - BZN • Non-stop
Arrival airport
You can't fly directly to Big Sky. It is served by Bozeman (BZN), located 37.5 miles from Big Sky.
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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

Wed, Apr 15 - Sat, Apr 18
Alaska Airlines Logo
10:30 am - 1:10 pm
PDX
-
BZN
1h 40mnonstop
Alaska Airlines Logo
1:50 pm - 2:40 pm
BZN
-
PDX
1h 50mnonstop
$137Alaska Airlines
Wed, Apr 15 - Sat, Apr 18
Hawaiian Airlines Logo
10:30 am - 1:10 pm
PDX
-
BZN
1h 40mnonstop
Hawaiian Airlines Logo
1:50 pm - 2:40 pm
BZN
-
PDX
1h 50mnonstop
$147Hawaiian Airlines
Wed, Apr 15 - Sat, Apr 18
Hawaiian Airlines Logo
10:30 am - 1:10 pm
PDX
-
BZN
1h 40mnonstop
Hawaiian Airlines Logo
7:26 pm - 11:44 pm
BZN
-
PDX
5h 18m
1 stop
$151Hawaiian Airlines
Sat, Apr 11 - Sat, Apr 18
Delta Logo
5:36 pm - 10:46 pm
PDX
-
BZN
4h 10m
1 stop
Delta Logo
3:15 pm - 6:52 pm
BZN
-
PDX
4h 37m
1 stop
$157Delta
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
1:35 pm - 9:55 pm
PDX
-
BZN
7h 20m
1 stop
Southwest Logo
7:30 am - 6:45 pm
BZN
-
PDX
12h 15m
1 stop
$162Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
12:45 pm - 9:55 pm
PDX
-
BZN
8h 10m
2 stops
Southwest Logo
8:40 am - 6:45 pm
BZN
-
PDX
11h 05m
2 stops
$167Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
2:35 pm - 12:15 am
PDX
-
BZN
8h 40m
2 stops
Southwest Logo
7:30 am - 6:45 pm
BZN
-
PDX
12h 15m
1 stop
$168Southwest
Wed, Apr 22 - Mon, Apr 27
Southwest Logo
12:45 pm - 9:55 pm
PDX
-
BZN
8h 10m
2 stops
Southwest Logo
4:20 pm - 12:55 am
BZN
-
PDX
9h 35m
2 stops
$174Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
12:45 pm - 9:55 pm
PDX
-
BZN
8h 10m
2 stops
Southwest Logo
8:40 am - 6:45 pm
BZN
-
PDX
11h 05m
2 stops
$187Southwest
Wed, Apr 15 - Sat, Apr 18
Southwest Logo
12:45 pm - 9:55 pm
PDX
-
BZN
8h 10m
2 stops
Southwest Logo
11:10 am - 6:45 pm
BZN
-
PDX
8h 35m
1 stop
$188Southwest
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$79
Best time to beat the crowds with an average 52% drop in price.
Most popular time to fly with an average 20% 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 40m.

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

    3 direct flights run between Portland and Big Sky on a daily basis. On average, there are about 21 departures each week.

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

    Consider leaving on a Tuesday 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 Sundays.

  • 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 April, May and June. 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.
7.9
Alaska AirlinesOverall score based on 12052 reviews
7.0Entertainment
7.8Comfort
8.1Boarding
8.5Crew
7.1Food
Airline reviews

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

2.0 MediocreAnonymous, Mar 2026
PDX - SEA
Read more Alaska Airlines reviews

Never got on because first part of trip was cancelled and we have no idea when we will get rebooked…

Wonderful as always! Pleasant staff, smooth ride, and timely departure.

Everything ran like it should. Staff was professional. Looking forward to flying with them again.

Liked the attention and speed when getting wheelchair..........Was assured by phone that my needs would be taken care of and they were with my name.

The seats were spacious and comfortable. Even in basic economy. However, the flight boarded 30 minutes late.

Alaska used to be a top notch airline. With it's growth it is now in line with the big airlines. Not bad, not great.

Great. I did have a little issue getting into the Lounge, which is likely more an American Airlines issue. I did not carry my physical AAdvantage Executive credit card with me on this trip, which Admirals Club membership is a part of the benefits of having this card. The instructions on the AA website and the Citi cards website make it seem like you don't need the physical card, as both sites state you can enter with your boarding pass and driver's license. But both lounges said you were required to present the physical card (and not the digital version, via Apple Pay), as only the physical card says "Admirals Club" on the back.I also do not have a physical Admirals Club membership card, so while both lounges eventually let me in, both denied me entrance initially for this reason.

Everything from the time I booked my flight through to the end when I got home was smooth and wonderful. Service was great, the flight attendants were attentive and there were no outstanding delays.

Delayed and no entertainment? I also forgot my headphones and immediately reported it and have not heard back yet.

The crew was very friendly. Boarding was quick and efficient.

Perhaps when you’re sitting in 1st class and the crew closes the bathroom for the pilots, there could be a notification other than holding your hands up as a blockade when you get there and you’re told the restrooms are closed please turn around … especially at night when visibility is poor and you’re met by a flight attendants with their arms up

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Loved flying First Class. Very comfortable. The seat was amazing. Enjoyed a movie and was able to relax so much better than in coach.

We landed and sat on the tarmac for 45 minutes because they only have one gate at the airport and there was another plane running late so we had to wait

The WiFi was not working. That made for a long flight.

Absolutely no communication on why there's a delay and multiple flight time reschedules. I would have canceled the flight and drove back home if I known it was going to be rescheduled 3 or 4 times.

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

The crew were exceptionally nice and accommodating. My wife was tired after the flight from Haneda, Tokyo. They let her sleep and served her dinner later after she woke up, before we landed in PDX.

No charging outlets worked. Other than collecting trash attendants didn’t come around. No one could hear flight attendants announcements during the flight. Seat pads were horrible. Sitting on a board for 5 hours. What happened to Hawaiian airlines comfort, hospitality, and extras? Our pilots did an excellent job trying to minimize turbulence and incredible job in landing in windy conditions.

I like that if they asked you to checked in a bag at the gate they give you priority to board

Horrible food and crew. Crew were laughing and talking loud while people were trying to sleep

Yall need to integrate your system with Alaska more efficiently. They booted me off the first flight because of a discrepancy on your end.

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Very good. Nice plane and we sat in economy plus - bigger seats, more room. They served a meal and snacks, and the meal was an apple stuffed pancake that was very good! The snack for us was a hummus sandwich - also very good. The flight attendants were helpful and nice. They have plenty of movies and shows to watch. My only negative -- they changed our flights around and did not adjust the layovers, so we ended up with a very long and unnecessary layover in Honolulu.

I liked the Starlink WiFi but didn't like how they said they were the only airline to offer a free meal and it turns out to be just a standalone sandwich and then charge for snacks to go with it. Rather have the free snacks like Southwest, but have the option to purchase a decent meal for a 5+ hour flight.

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.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

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