What is the cheapest airline that flies from Portland to Butte Silver Bow Co?

Delta is the most popular carrier operating from Portland to Butte Silver Bow Co

What airlines fly to Butte?

Alaska Airlines, Hawaiian Airlines and Delta are the top three most popular airlines that fly to Butte from Portland according to our data. Alaska Airlines is the first choice among our users, with 80% of people opting to fly with this airline when traveling to Butte. Keep in mind that there are 3 different airlines that fly to Butte on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Butte Silver Bow Co Airport?

Prices for flights from Portland Airport to Butte Silver Bow Co Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Butte Silver Bow Co Airport?

The number of operators available for flights from Portland Airport to Butte Silver Bow Co Airport is 1 as of August 2025.

How old do you have to be to fly from Portland Airport to Butte Silver Bow Co Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Butte Silver Bow Co Airport.

What documentation or ID do you need to fly to Butte Silver Bow Co Airport?

The travel and health documents you'll need for your trip to Butte Silver Bow Co Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Butte Silver Bow Co Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$274 Cheap Flights from Portland to Butte (PDX-BTM) in 2025

1 adult

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Find the cheapest flights from Portland to Butte (PDX-BTM)

Round-trip

One-way

Cheap round-trip flights

9:50 am - 5:03 pmPDX-BTM

6h 13m1 stop

6:14 pm - 11:52 pmBTM-PDX

6h 38m1 stop

$398Delta

Find Deal

Thu, Sep 25 - Thu, Oct 2

9:50 am - 5:03 pmPDX-BTM

6h 13m1 stop

6:14 pm - 11:52 pmBTM-PDX

6h 38m1 stop

$434Delta

Find Deal

Fri, Sep 12 - Sun, Sep 14

5:00 am - 10:21 pmPDX-BTM

16h 21m1 stop

9:47 am - 10:45 pmBTM-PDX

13h 58m2 stops

$490United Airlines

Find Deal

Thu, Sep 25 - Thu, Oct 2

3:50 pm - 10:21 pmPDX-BTM

29h 31m2 stops

9:47 am - 10:45 pmBTM-PDX

13h 58m2 stops

$495United Airlines

Find Deal

Thu, Sep 25 - Thu, Oct 2

Delta flights from Portland to Butte

Our best Delta deals on Portland to Butte flight tickets

Delta

Sep 25

PDX9:50 amPortland

6h 13m

1 stop

BTM5:03 pmButte Silver Bow Co

Oct 2

BTM6:14 pmButte Silver Bow Co

6h 38m

1 stop

PDX11:52 pmPortland

$398

Find similar

Delta

Sep 12

PDX9:50 amPortland

6h 13m

1 stop

BTM5:03 pmButte Silver Bow Co

Sep 14

BTM6:14 pmButte Silver Bow Co

6h 38m

1 stop

PDX11:52 pmPortland

$434

Find similar

Delta

Sep 3

PDX9:55 amPortland

6h 11m

1 stop

BTM5:06 pmButte Silver Bow Co

Sep 14

BTM6:14 pmButte Silver Bow Co

6h 38m

1 stop

PDX11:52 pmPortland

$438

Find similar

United Airlines flights from Portland to Butte

Our best United Airlines deals on Portland to Butte flight tickets

United Airlines

Sep 25

PDX5:00 amPortland

16h 21m

1 stop

BTM10:21 pmButte Silver Bow Co

Oct 2

BTM9:47 amButte Silver Bow Co

13h 58m

2 stops

PDX10:45 pmPortland

$490

Find similar

United Airlines

Sep 25

PDX3:50 pmPortland

29h 31m

2 stops

BTM10:21 pmButte Silver Bow Co

Oct 2

BTM9:47 amButte Silver Bow Co

13h 58m

2 stops

PDX10:45 pmPortland

$495

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandButte

PDX - BTM

PDXBTM

Portland

Thu 9/25

9:50 am-5:03 pm

1 stop6h 13m

Butte Silver Bow Co

Thu 10/2

6:14 pm-11:52 pm

1 stop6h 38m

$398

PortlandButte

PDX - BTM

PDXBTM

Portland

Fri 9/12

9:50 am-5:03 pm

1 stop6h 13m

Butte Silver Bow Co

Sun 9/14

6:14 pm-11:52 pm

1 stop6h 38m

$434

PortlandButte

PDX - BTM

PDXBTM

Portland

Thu 9/25

5:00 am-10:21 pm

1 stop16h 21m

Butte Silver Bow Co

Thu 10/2

9:47 am-10:45 pm

2 stops13h 58m

$490

PortlandButte

PDX - BTM

PDXBTM

Portland

Thu 9/25

3:50 pm-10:21 pm

2 stops29h 31m

Butte Silver Bow Co

Thu 10/2

9:47 am-10:45 pm

2 stops13h 58m

$495

PortlandButte

PDX - BTM

PDXBTM

Portland

Mon 9/15

9:50 am-5:03 pm

1 stop6h 13m

$274

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Portland to Butte

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest day to depart on your flight to Butte?

Our data shows that Wednesday is the least expensive day to fly to Butte. Tickets to fly out on this day can be as low as $483. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Portland to Butte for around $508.

When to book flights from Portland to Butte

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Butte according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Portland to Butte (PDX to BTM) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Butte

Direct flights	None

There are no direct flights from Portland to Butte. There are no popular flight routes from Portland to Butte.

Search flight deals

How far is Portland to Butte Silver Bow Co by plane?
The straight-line distance from Portland to Butte Silver Bow Co is 489.3 mi. Flights usually cover this in 6h 13m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Portland Airport to Butte Silver Bow Co Airport?
Prices for flights from Portland Airport to Butte Silver Bow Co Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Butte Silver Bow Co Airport?
The number of operators available for flights from Portland Airport to Butte Silver Bow Co Airport is 1 as of August 2025.
How old do you have to be to fly from Portland Airport to Butte Silver Bow Co Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Portland Airport to Butte Silver Bow Co Airport.
What documentation or ID do you need to fly to Butte Silver Bow Co Airport?
The travel and health documents you'll need for your trip to Butte Silver Bow Co Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Butte Silver Bow Co Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Portland to Butte?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Butte is Delta (100% of total bookings).

Best airlines flying from Portland to Butte

Compare and see reviews for airlines that fly from Portland to Butte with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $312	Free Cancellation	Rating 7.9 7,977 reviews		Search Delta flights

Dillon

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Butte?

It is quick and easy to find Portland to Butte flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Butte that suits you.

Can I find flights from Portland to Butte with flexible booking policies on momondo?

momondo does allow users to show only those flights to Butte from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Butte?

momondo provides multiple filters to help you find the best flight to Butte from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Butte right now. Can momondo alert me if prices change?

Price alerts on flights to Butte from Portland are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.