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Find cheap flights from Portland to Big Sky from $97

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 9/7. 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
0 bags
Mon 7/8
Mon 7/15

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Good to know

Low season

January

High season

May

Cheapest flight

$97
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly with an average 27% 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 32m.

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

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

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

    Consider leaving on a Saturday and avoid Thursdays if you are looking for the best rates. For your return to Portland, you’ll find the best rates on Saturdays and the most expensive ones on Wednesdays.

  • 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 Delta for $97. Alaska Airlines offered a round-trip connection from $186 and Delta from $204.

See more FAQs

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 53 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.
See more tips

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 9236 reviews
8.6Crew
7.3Entertainment
7.3Food
8.2Boarding
7.9Comfort
Airline reviews

When Alaska uses Sky west which it does on many flights in and out of PDX, The planes use " Gates" that are outside of the terminal and are a long walk to and from the planes. Also you must board and deplane using a ramp. I have difficulty walking so going into Portland was difficult. Going out was worse . We walked to nearly the emd of this "Tunnel " only to be told there was a problem with the plane so we had to take the long walk back to to the terminal and then back out again when the plane was fixed. I will look for a Southwest flight next time I go to Portland

2.0 MediocreAnonymous, Jun 2024PDX - OAK
Read more about Alaska Airlines reviews

When Alaska uses Sky west which it does on many flights in and out of PDX, The planes use " Gates" that are outside of the terminal and are a long walk to and from the planes. Also you must board and deplane using a ramp. I have difficulty walking so going into Portland was difficult. Going out was worse . We walked to nearly the emd of this "Tunnel " only to be told there was a problem with the plane so we had to take the long walk back to to the terminal and then back out again when the plane was fixed. I will look for a Southwest flight next time I go to Portland

Great! No issues at all. Friendly staff, on time flight, and smooth, comfortable flight.

The airline itself was extremely comfortable and the staff were wonderful. The communication was excellent amongst the pilots and flight attendants and the passengers. I was throughly impressed by the cleaning crew that came on the plane immediately to ready it for the next flight. I have flown a bunch of times post Covid pandemic and have never seen this! I gave the “okay” rating for the food and entertainment because I didn’t order food and there wasn’t entertainment offered through the plane (only your personal devices).

The flight both ways was pleasant and uneventful. The staff was friendly, accommodating, and overall very helpful.

The one stewardess was rude about helping me put my bag in overhead….she said “ Is it heavy ?” (I am 73 yrs old)

That flight was a terrible experience. Flying to Portland was not much better. I will not ever fly Alaska Airlines again. I have a temporary disability due to recent neurocervical surgery. I cannot lift heavy things, I cannot walk long distances without vertigo and fainting, and I required wheelchair assistance. I showed up an hour and a half before my flight. The wheelchair queue assistance person was rude and chastised me for showing up so late. An older couple showed up almost an half an hour AFTER me, and she was sweet as pie to them. There was a long wait for wheelchair assistance as they were backed up. When I got to the gate, the gate attendants were rude and again, I got chastised for being late, even though it was not my fault they were backed up. When I asked for help with my bags and boarding the plane, they told me it was my fault and they were not obligated to help me. I was treated like a big inconvenience because I had a wheelchair and I couldn't "just walk." One of them literally rolled her eyes at me. I kept silent, because I just wanted to get home and I felt like they would not let me on if I complained, but I was practically crying. When I got down to the door to board, the wheelchair person left, and I asked the flight attendants for help. They said, well, you'll have to stand there and wait, even though I said I couldn't stand very long, and another passenger said, "Oh just let me do it" and helped me down. I tried not to bother the inflight attendants, because everytime you did, they acted exasperated and stressed out. I paid $7.50 for a bag of Pirate Booty and a tiny turkey beef stick for dinner. I needed wifi to work during the flight, and it kept crashing on me repeatedly and resetting my online work, costing me valuable time. I had to pay twice to get it on my laptop and phone, but I did get a refund when I returned. When I got to NY, the Portland agents had not arranged for a wheelchair to meet me and I had to stand for fifteen minutes waiting for the very nice young man who found an empty chair and had to wheel me and another passenger with carry on luggage to the front of JFK all by himself. Never, ever again. You all should be ashamed of how you treat people with disabilities. The other people who needed assistance to get on this flight did not fare much better than me, from what I could see.

My experience for a sort flight was perfect and hassle free.

I didn’t like not knowing my seat till I got to the airport - and my boarding group was F (last).

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

Horrible. I likely will have to spend several thousand dollars to rebook my international flights, due to their delays, plus a hotel in SF. I can’t wait to never fly them again!

Among the poorest flights I’ve had with Delta in a while. Entertainment system failed completely on a 7.5 hr flight. Crew seemed distracted and not the normal friendly crew. Flight overbooked it seemed… very crowded.

If I can, I always fly Delta. I’ve found their service to always be reliable and pleasant.

You could have not cancelled the flight (AA, which I will be flying from now on) left for BOS despite the fictitious weather issues (that no one in my Boston family could see). You could have rebooked my direct flight to another direct flight instead of sending me though JFK, the worst US airport after O’Hara You could have rebooked me on a Main Cabin seat (like the one I paid for in my original ticket instead of putting me a the last row on JFK->BOS leg, pocketing the difference in ticket price But I do not really care whether you will ever do that in a future because in a future neither I nor anyone from my company (unless they pay out of pocket) nor an of my clients and partners (if they heed my advice) will ever be caught dead on any of Delta flights

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

It was pretty good I was worried with the short Layover that I might not catch my connection but the gate was there

It was good until there was a 3 hour delay because there was not any pilots to fly the plane.

There was plenty of overhead room but half of the passengers were told they had to check their carryon bags. My partner and I checked in as early as possible and our seats were split across the aisle.

Friendly flight attendants. Comfort plus seats were very comfortable and had lots of leg room. 10A and 10 B.

Flew first class so everything was great. But maybe because the flights were red eye, no meals were served, just chips. I flew Alaska Air 1st class at 9PM (2 hour flight) and they served beef short rib sliders!

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

I had a great flight. Everything went smoothly and the flight arrived early.

Book cheap flights from Portland to Big Sky

Recent round-trip flight deals

6/29Sat
1 stopAlaska Airlines
4h 14mPDX-BZN
7/3Wed
nonstopAlaska Airlines
1h 43mBZN-PDX
$186
7/5Fri
nonstopAlaska Airlines
1h 32mPDX-BZN
7/10Wed
nonstopAlaska Airlines
1h 43mBZN-PDX
$187
7/3Wed
1 stopAlaska Airlines
4h 10mPDX-BZN
7/6Sat
1 stopAlaska Airlines
3h 41mBZN-PDX
$196
8/5Mon
1 stopDelta
6h 05mPDX-BZN
8/7Wed
1 stopDelta
3h 56mBZN-PDX
$204
7/2Tue
1 stopAlaska Airlines
5h 14mPDX-BZN
7/5Fri
1 stopAlaska Airlines
5h 38mBZN-PDX
$206
9/12Thu
1 stopDelta
4h 10mPDX-BZN
9/15Sun
1 stopDelta
3h 55mBZN-PDX
$214
6/25Tue
2 stops
28h 10mPDX-BZN
7/4Thu
1 stop
13h 45mBZN-PDX
$257
7/18Thu
2 stops
10h 39mPDX-BZN
7/21Sun
2 stops
22h 26mBZN-PDX
$271
6/28Fri
1 stopUnited Airlines
21h 01mPDX-BZN
7/3Wed
1 stopUnited Airlines
7h 16mBZN-PDX
$619
8/15Thu
1 stopUnited Airlines
21h 06mPDX-BZN
8/18Sun
1 stopUnited Airlines
18h 02mBZN-PDX
$627

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Recent one-way flight deals

9/7Sat
1 stopDelta
7h 49mPDX-BZN
$97
8/6Tue
1 stopDelta
7h 09mPDX-BZN
$98
7/11Thu
1 stop
15h 03mPDX-BZN
$99
7/11Thu
2 stops
10h 39mPDX-BZN
$104
7/1Mon
1 stopAlaska Airlines
6h 20mPDX-BZN
$108
7/7Sun
nonstopAlaska Airlines
1h 32mPDX-BZN
$129
6/21Fri
1 stopSun Country Air
8h 10mPDX-BZN
$160
6/14Fri
1 stopSun Country Air
8h 10mPDX-BZN
$231
8/1Thu
2 stopsUnited Airlines
19h 46mPDX-BZN
$462
6/30Sun
2 stopsUnited Airlines
20h 15mPDX-BZN
$500

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Last minute flights from Portland to Big Sky

Last minute flight, train and bus deals

6/13Thu
multi-stopDelta
8h 57mPDX-BZN
6/15Sat
multi-stopDelta
3h 59mBZN-PDX
$591
6/13Thu
multi-stopDelta
8h 57mPDX-BZN
6/15Sat
multi-stopDelta
8h 31mBZN-PDX
$596

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Flights to Big Sky

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