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Big Sky

$66+ Cheap flights from Portland (PDX) to Big Sky, MT

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — BZN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Big Sky are usually found in January or October, booked 31 days in advance, depart on a Monday or Saturday and return on a Thursday

Cheap flight deals from Portland to Big Sky

Keep the following information in mind while searching for Portland to Big Sky flight deals. Data was last updated June 12, 2025.

Round-trip from

$147
(Hawaiian Airlines)

One-way from

$112
(Mytrip)

Popular in

December

Cheapest in

January

Average price

$362
From Portland to Big Sky
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One-way flight from Portland to Big Sky
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Portland to Big Sky

Cheapest flights from Portland to Big Sky
Explore the most affordable flight options available from Portland to Big Sky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Hawaiian Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/39:30 pmPDX - BZN
Nonstop1h 42mHawaiian Airlines
Sun 9/75:22 amBZN - PDX
Nonstop1h 56mHawaiian Airlines
Deal found 6/10$147
This Delta deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/35:05 pmPDX - BZN
1 stop5h 04mDelta
Mon 9/85:30 amBZN - PDX
1 stop4h 21mDelta
Deal found 6/10$205
This Alaska Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/11:24 pmPDX - BZN
1 stop4h 04mAlaska Airlines
Fri 9/57:23 pmBZN - PDX
1 stop4h 21mAlaska Airlines
Deal found 6/11$206
This Southwest deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:35 pmPDX - BZN
1 stop7h 10mSouthwest
Sun 12/75:00 amBZN - PDX
1 stop5h 55mSouthwest
Deal found 6/9$217
This Mytrip deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/310:34 amPDX - BZN
1 stop27h 08mMultiple Airlines
Thu 8/72:36 pmBZN - PDX
1 stop19h 42mMultiple Airlines
Deal found 6/12$253
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2710:34 amPDX - BZN
1 stop27h 08mAllegiant Air
Wed 7/3012:17 pmBZN - PDX
1 stop22h 27mAllegiant Air
Deal found 6/11$279
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/17:35 pmPDX - BZN
2 stops18h 39mUnited Airlines
Wed 8/64:32 pmBZN - PDX
1 stop6h 44mUnited Airlines
Deal found 6/12$466

Cheapflights Fare Finder

Customize your flight search to find flights from Portland to Big Sky that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Portland to Big Sky that are best for you.

Fly from

Portland

Fly to

Big Sky

Route

Depart

Return

Price

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Wed 9/3

9:30 pm-12:12 am

Nonstop1h 42m

Bozeman Gallatin Field

Sun 9/7

5:22 am-6:18 am

Nonstop1h 56m

$147

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Mon 9/1

9:30 pm-12:12 am

Nonstop1h 42m

Bozeman Gallatin Field

Mon 9/8

7:23 pm-11:59 pm

1 stop5h 36m

$197

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Wed 9/3

5:05 pm-11:09 pm

1 stop5h 04m

Bozeman Gallatin Field

Mon 9/8

5:30 am-8:51 am

1 stop4h 21m

$205

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Wed 12/3

2:35 pm-10:45 pm

1 stop7h 10m

Bozeman Gallatin Field

Sun 12/7

5:00 am-9:55 am

1 stop5h 55m

$217

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Sun 8/3

10:34 am-2:42 pm

1 stop27h 08m

Bozeman Gallatin Field

Thu 8/7

2:36 pm-9:18 am

1 stop19h 42m

$253

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Sun 7/27

10:34 am-2:42 pm

1 stop27h 08m

Bozeman Gallatin Field

Wed 7/30

12:17 pm-9:44 am

1 stop22h 27m

$279

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Fri 8/1

7:35 pm-3:14 pm

2 stops18h 39m

Bozeman Gallatin Field

Wed 8/6

4:32 pm-10:16 pm

1 stop6h 44m

$466

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Tue 9/2

9:30 pm-12:12 am

Nonstop1h 42m

$66

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Tue 9/2

11:45 am-10:55 pm

2 stops10h 10m

$84

PortlandBozeman

PDX - BZN

PDXBZN

Portland

Fri 9/12

7:14 pm-12:52 am

1 stop4h 38m

$108

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 14 results
1
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Best time to book a flight from Portland to Big Sky

Have a flexible travel schedule? Discover the best time to fly to Big Sky from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Portland to Big Sky?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Big Sky. Price data was last updated on June 9, 2025.

The best time to book flights from Portland to Big Sky is 31 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Portland to Big Sky?

Currently, October is the cheapest month in which you can book a flight from Portland to Big Sky (average of $371). Flying from Portland to Big Sky in May is currently the most expensive (average of $479). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to BS1?

Find hourly flight availability from Portland to Big Sky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portland to Big Sky as you normally would.

What is the cheapest day to fly from Portland to Big Sky?

Use this chart to determine the cheapest time to fly round-trip from Portland to Big Sky. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Big Sky flight should consider departing on Saturday evenings when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portland to Big Sky

Explore weekly flight availability from Portland to Big Sky. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from PDX to BS1 are scheduled on a Thursday (5 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Big Sky by month

Plan your trip to Big Sky by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Big Sky ranges from 0.4 - 2.0 inches per month. May is typically the wettest month, when rainfall can reach 2.0 in. January is typically the driest time to visit Big Sky when rainfall is around 0.4 in.

Temperature in Big Sky by month

Plan your trip to Big Sky by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Big Sky, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 15.8 F).

Reviews of airlines servicing Big Sky

Get insights into the airlines that provide service to Big Sky. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Big Sky. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Portland to Big Sky, such as Alaska Airlines, Southwest and Delta. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,946 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Overall

8.0

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Portland to Big Sky. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Portland to Big Sky?

    If you book a flight to Big Sky from Portland, you will be flying from Portland, which is the city’s only airport. Portland (PDX) is located 6.0 mi from the center of Portland. There are 4 flights from Portland to Big Sky per day from 3 different airlines.

  • What are the cheapest airlines to fly from Portland to Big Sky one-way?

    The cheapest airline one-way is Allegiant Air, with whom users have recently found tickets for as low as $112. However, be on the lookout for offers from Alaska Airlines and Hawaiian Airlines, as they are both options that can get you from Portland to Big Sky for a low price.

  • What are the most reliable airlines from Portland to Big Sky?

    Before booking your flight to Big Sky from Portland, check out the most reliable airlines to get you to your destination on time: Horizon Air (94%), British Airways (94%), Alaska Airlines( 93%).

  • What are the cheapest flights from Portland to Big Sky?

    The cheapest flight price from Portland to Big Sky is $98. On average you can expect to pay $276. The most popular route, (Portland - Bozeman Gallatin Field), can usually be booked for $137.

  • Can I find deals for flights from Portland to Big Sky that include hotel bookings?

    Yes. In addition to deals on Portland to Big Sky flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Big Sky?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Big Sky.

  • Can I find deals for business class flights from Portland to Big Sky?

    Yes. Cheapflights offers flight deals from Portland to Big Sky by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Big Sky?

    Currently, October is the cheapest month in which you can book a flight from Portland to Big Sky (average of $371). Flying from Portland to Big Sky in May is currently the most expensive (average of $479). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Portland to Big Sky

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Portland to Big Sky

Discover the top 3 airlines that operate flights from Portland to Big Sky. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$157Average$277FlexibilityNo cancel feeOn-time85%
DeltaCheapest$184Average$438FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$198Average$379FlexibilityNo cancel feeOn-time75%

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