How many flights depart from Portland to Idaho on average per week?

The number of flights available between Portland and Idaho is 131 per week as of December 2025. The most frequent departure day is Sun, with 18% of weekly flights leaving on this day.

How many flights depart from Portland to Idaho on average per day?

As of December 2025, there are 18 flights per day flying from Portland to Idaho. The most common time of day flights depart is 7:00AM, with 42% of flights taking off at noon.

What airlines fly to Idaho?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Idaho from Portland according to our data. Alaska Airlines is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 4 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Portland to Idaho?

Delta, Alaska Airlines, and Allegiant Air are the most popular carriers operating from Portland to Idaho

When did momondo last update prices for flights from Portland Airport to Idaho?

Prices for flights from Portland Airport to Idaho are refreshed on a daily basis.

How many operators does momondo search for flights from Portland Airport to Idaho?

As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Idaho.

How old do you have to be to fly from Portland Airport to Idaho?

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 Idaho.

What documentation or ID do you need to fly to Idaho?

The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$74 Cheap Flights from Portland to Idaho in 2025/26

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:34 am - 8:40 am

PDX

GEG

1h 06mnonstop

3:28 pm - 4:50 pm

GEG

PDX

1h 22mnonstop

$137Alaska Airlines

Wed, Jan 21 - Sat, Jan 24

5:35 pm - 9:25 pm

PDX

GEG

3h 50m1 stop

5:00 am - 6:24 am

GEG

PDX

1h 24mnonstop

$141Alaska Airlines

Fri, Jan 30 - Sat, Jan 31

9:30 pm - 12:23 am

PDX

GEG

2h 53m1 stop

12:32 pm - 1:50 pm

GEG

PDX

1h 18mnonstop

$142Alaska Airlines

Wed, Jan 14 - Wed, Jan 21

5:35 pm - 11:04 pm

PDX

GEG

5h 29m1 stop

5:45 am - 9:29 am

GEG

PDX

3h 44m1 stop

$146Alaska Airlines

Wed, Jan 14 - Sun, Jan 18

7:10 am - 10:37 am

PDX

GEG

3h 27m1 stop

6:10 am - 10:01 am

GEG

PDX

3h 51m1 stop

$147Delta

Fri, Mar 6 - Sun, Mar 8

5:35 pm - 9:25 am

PDX

GEG

15h 50m1 stop

12:32 pm - 1:50 pm

GEG

PDX

1h 18mnonstop

$152Alaska Airlines

Mon, Jan 19 - Sun, Jan 25

5:30 am - 2:50 pm

PDX

SUN

8h 20m2 stops

12:55 pm - 8:59 pm

SUN

PDX

9h 04m2 stops

$178Delta

Tue, Jan 13 - Sat, Jan 17

10:01 am - 12:36 pm

PDX

IDA

1h 35mnonstop

1:26 pm - 2:11 pm

IDA

PDX

1h 45mnonstop

$179Allegiant Air

Fri, Jan 2 - Mon, Jan 5

3:50 pm - 11:48 pm

PDX

BOI

6h 58m1 stop

7:45 am - 2:48 pm

BOI

PDX

8h 03m1 stop

$197United Airlines

Fri, Jan 16 - Sun, Jan 18

6:22 pm - 5:01 pm

PDX

JAC

21h 39m1 stop

5:36 pm - 2:48 pm

JAC

PDX

22h 12m1 stop

$315American Airlines

Fri, Jan 9 - Mon, Jan 12

United Airlines flights from Portland to Idaho

Our best United Airlines deals on Portland to Idaho flight tickets

United Airlines

Jan 16

PDX3:50 pmPortland

6h 58m

1 stop

BOI11:48 pmBoise Air Term. Gowen Fld

Jan 18

BOI7:45 amBoise Air Term. Gowen Fld

8h 03m

1 stop

PDX2:48 pmPortland

$197

Find similar

United Airlines

Dec 25

PDX7:30 amPortland

7h 38m

1 stop

BOI4:08 pmBoise Air Term. Gowen Fld

Jan 23

BOI10:48 amBoise Air Term. Gowen Fld

4h 58m

1 stop

PDX2:46 pmPortland

$313

Find similar

United Airlines

Mar 14

PDX7:30 amPortland

5h 50m

1 stop

JAC2:20 pmJackson Hole

Mar 18

JAC4:16 pmJackson Hole

5h 54m

1 stop

PDX9:10 pmPortland

$427

Find similar

Southwest flights from Portland to Idaho

Our best Southwest deals on Portland to Idaho flight tickets

Southwest

Feb 3

PDX9:55 amPortland

4h 00m

1 stop

BOI2:55 pmBoise Air Term. Gowen Fld

Feb 10

BOI6:05 amBoise Air Term. Gowen Fld

8h 30m

2 stops

PDX1:35 pmPortland

$219

Find similar

Southwest

Jan 10

PDX6:50 amPortland

7h 25m

2 stops

BOI3:15 pmBoise Air Term. Gowen Fld

Jan 18

BOI11:50 amBoise Air Term. Gowen Fld

4h 55m

1 stop

PDX3:45 pmPortland

$239

Find similar

Southwest

Jan 6

PDX9:55 amPortland

4h 00m

1 stop

BOI2:55 pmBoise Air Term. Gowen Fld

Jan 9

BOI3:35 pmBoise Air Term. Gowen Fld

7h 30m

1 stop

PDX10:05 pmPortland

$244

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Wed 1/21

7:34 am-8:40 am

Nonstop1h 06m

Spokane

Sat 1/24

3:28 pm-4:50 pm

Nonstop1h 22m

$137

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 1/30

5:35 pm-9:25 pm

1 stop3h 50m

Spokane

Sat 1/31

5:00 am-6:24 am

Nonstop1h 24m

$141

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Wed 1/14

9:30 pm-12:23 am

1 stop2h 53m

Spokane

Wed 1/21

12:32 pm-1:50 pm

Nonstop1h 18m

$142

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Wed 1/14

5:35 pm-11:04 pm

1 stop5h 29m

Spokane

Sun 1/18

5:45 am-9:29 am

1 stop3h 44m

$146

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Fri 3/6

7:10 am-10:37 am

1 stop3h 27m

Spokane

Sun 3/8

6:10 am-10:01 am

1 stop3h 51m

$147

PortlandSpokane

PDX - GEG

PDXGEG

Portland

Mon 1/19

5:35 pm-9:25 am

1 stop15h 50m

Spokane

Sun 1/25

12:32 pm-1:50 pm

Nonstop1h 18m

$152

PortlandHailey

PDX - SUN

PDXSUN

Portland

Tue 1/13

5:30 am-2:50 pm

2 stops8h 20m

Hailey Sun Valley-Friedman

Sat 1/17

12:55 pm-8:59 pm

2 stops9h 04m

$178

PortlandIdaho Falls

PDX - IDA

PDXIDA

Portland

Fri 1/2

10:01 am-12:36 pm

Nonstop1h 35m

Idaho Falls Fanning Field

Mon 1/5

1:26 pm-2:11 pm

Nonstop1h 45m

$179

PortlandBoise

PDX - BOI

PDXBOI

Portland

Fri 1/16

3:50 pm-11:48 pm

1 stop6h 58m

Boise Air Term. Gowen Fld

Sun 1/18

7:45 am-2:48 pm

1 stop8h 03m

$197

PortlandJackson

PDX - JAC

PDXJAC

Portland

Fri 1/9

6:22 pm-5:01 pm

1 stop21h 39m

Jackson Hole

Mon 1/12

5:36 pm-2:48 pm

1 stop22h 12m

$315

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Idaho

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

Other information

What is the cheapest month to fly to Idaho?

In general, September is the cheapest month to fly from Portland to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $217. If you don’t want to visit Idaho in September, then you should wait until April to fly from Portland, when ticket prices are also cheap, with an average price of $218.

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

Our data shows that Wednesday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $220. On the other hand, Thursday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $290.

What is the cheapest time of day to depart on your flight to Idaho?

According to our data, the cheapest time of day to fly to Idaho is in the morning. momondo users have found flights departing from Portland to Idaho in the morning for as low as $274. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the evening is when there is more demand to fly to Idaho, so prices are often more expensive at around $295 per ticket.

What is the cheapest Portland to Idaho flight route?

Fly from Portland to Idaho Falls Fanning Field for the best Portland - Idaho flight prices

How far in advance should I book a flight to Idaho?

You are more likely to see cheaper flights to Idaho from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $269 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Portland for as low as $175 on momondo.

What cabin class options are available on Portland to Idaho flights?

There are 3 cabin classes available to choose from on Portland to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Idaho flights?

No. A direct flight is the cheapest option for a flight between Portland to Idaho.

Cheap Portland to Idaho flight deals and tips

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

Best Price Found	$73
Fastest flight time	1h 04m
Direct flights	Every day
Airports in Idaho	27 airports

The best one-way flight to Idaho from Portland in the past 72 hours is $73. The best round-trip flight deal from Portland to Idaho found on momondo in the last 72 hours is $95.

The fastest flight from Portland to Idaho takes 1h 04m

Direct flights go from Portland to Idaho every day.

There are 27 airports in Idaho. From Portland there are direct flights to Idaho Falls Fanning Field (IDA), Spokane (GEG), Boise Air Term. Gowen Fld (BOI).

Search flight deals

When did momondo last update prices for flights from Portland Airport to Idaho?
Prices for flights from Portland Airport to Idaho are refreshed on a daily basis.
How many operators does momondo search for flights from Portland Airport to Idaho?
As of December 2025, there are 5 operators available to choose from for flights from Portland Airport to Idaho.
How old do you have to be to fly from Portland Airport to Idaho?
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 Idaho.
What documentation or ID do you need to fly to Idaho?
The travel and health documents required for your trip to Idaho can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Idaho. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Portland to Idaho?
momondo data reveals that the most frequently booked plane model on the route from Portland to Idaho is Boeing 737-800 Passenger/BBJ2 (winglets), representing 34.92% of all bookings. The subsequent popular models are Embraer 175 at 23.49%, Boeing 737-900 Passenger/BBJ3 (winglets) at 14.29%, and Boeing 737 MAX 9 at 9.84%.

Best airlines flying from Portland to Idaho

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

Airline	Rating	Free Cancellation	Price
Allegiant Air	PriceFrom $56	Free Cancellation	Rating 7.2 701 reviews	Search Allegiant Air flights
Alaska Airlines	PriceFrom $139	Free Cancellation	Rating 8.0 11,502 reviews	Search Alaska Airlines flights
Hawaiian Airlines	PriceFrom $150	Free Cancellation	Rating 7.8 2,821 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $166	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Idaho. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Idaho 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 Idaho?

momondo provides multiple filters to help you find the best flight to Idaho 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 Idaho right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Portland to Idaho flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Idaho trip

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Find better results for your trip to Idaho

Popular cities in Idaho

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Cheap flights from Portland to Idaho from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Idaho departing on 3/17. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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United Airlines flights from Portland to Idaho

Our best United Airlines deals on Portland to Idaho flight tickets

Southwest flights from Portland to Idaho

Our best Southwest deals on Portland to Idaho flight tickets

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See travel insights to Idaho from

How to get the cheapest flight ticket from Portland to Idaho

What is the cheapest month to fly to Idaho?

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

What is the cheapest time of day to depart on your flight to Idaho?

What is the cheapest Portland to Idaho flight route?

Fly from Portland to Idaho Falls Fanning Field for the best Portland - Idaho flight prices

How far in advance should I book a flight to Idaho?

What cabin class options are available on Portland to Idaho flights?

There are 3 cabin classes available to choose from on Portland to Idaho flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Portland to Idaho flights?

No. A direct flight is the cheapest option for a flight between Portland to Idaho.

What is the cheapest airline that flies from Portland to Idaho?

Delta, Alaska Airlines, and Allegiant Air are the most popular carriers operating from Portland to Idaho

What airlines fly to Idaho?

How many flights depart from Portland to Idaho on average per day?

As of December 2025, there are 18 flights per day flying from Portland to Idaho. The most common time of day flights depart is 7:00AM, with 42% of flights taking off at noon.

How many flights depart from Portland to Idaho on average per week?

The number of flights available between Portland and Idaho is 131 per week as of December 2025. The most frequent departure day is Sun, with 18% of weekly flights leaving on this day.

Cheap Portland to Idaho flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in Idaho

When did momondo last update prices for flights from Portland Airport to Idaho?

How many operators does momondo search for flights from Portland Airport to Idaho?

How old do you have to be to fly from Portland Airport to Idaho?

What documentation or ID do you need to fly to Idaho?

What is the most popular plane model from Portland to Idaho?

Best airlines flying from Portland to Idaho

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

Why use momondo?

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

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

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

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

An easier way to manage your Idaho trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Idaho

Popular cities in Idaho

Popular flights according to clicks in the last 7 days on momondo