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

Southwest, Alaska Airlines, and Hawaiian Airlines are the most popular carriers operating from Portland to Idaho

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

As of July 2025, there are 23 flights per day flying from Portland to Idaho. The most common time of day flights depart is 9:00PM, with 36% of flights taking off in the afternoon.

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

The number of flights available between Portland and Idaho is 167 per week as of July 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

What airlines fly to Idaho?

Alaska Airlines, Delta and Allegiant Air 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 75% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 5 different airlines that fly to Idaho 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 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 July 2025, there are 6 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.

$76 Cheap Flights from Portland to Idaho in 2025

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Find the cheapest flights from Portland to Idaho

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

9:40 pm - 11:59 pmPDX-BOI

1h 19mnonstop

4:00 pm - 4:22 pmBOI-PDX

1h 22mnonstop

$116Hawaiian Airlines

Find Deal

mié., ago. 27 - mar., sep. 2

9:40 pm - 11:59 pmPDX-BOI

1h 19mnonstop

6:00 am - 6:20 amBOI-PDX

1h 20mnonstop

$117Alaska Airlines

Find Deal

mar., ago. 26 - mié., sep. 3

2:30 pm - 4:50 pmPDX-BOI

1h 20mnonstop

6:00 am - 6:20 amBOI-PDX

1h 20mnonstop

$123Alaska Airlines

Find Deal

sáb., ago. 23 - dom., ago. 24

9:40 pm - 11:59 pmPDX-BOI

1h 19mnonstop

6:00 am - 6:20 amBOI-PDX

1h 20mnonstop

$134Hawaiian Airlines

Find Deal

sáb., ago. 30 - jue., sep. 4

7:15 am - 1:06 pmPDX-BOI

4h 51m1 stop

2:00 pm - 4:59 pmBOI-PDX

3h 59m1 stop

$151Delta

Find Deal

mié., ago. 27 - sáb., ago. 30

10:55 am - 10:25 pmPDX-BOI

10h 30m2 stops

11:30 am - 5:00 pmBOI-PDX

6h 30m1 stop

$162Southwest

Find Deal

mié., ago. 27 - mié., sep. 3

5:55 pm - 12:05 amPDX-BOI

5h 10m1 stop

11:30 am - 5:00 pmBOI-PDX

6h 30m1 stop

$164Southwest

Find Deal

vie., ago. 29 - mar., sep. 2

8:04 pm - 1:21 pmPDX-BOI

16h 17m1 stop

9:16 pm - 11:12 amBOI-PDX

14h 56m1 stop

$165Spirit Airlines

Find Deal

vie., sep. 5 - lun., sep. 8

3:18 pm - 8:20 pmPDX-BOI

4h 02m1 stop

5:45 am - 8:15 amBOI-PDX

3h 30m1 stop

$171Delta

Find Deal

sáb., ago. 30 - jue., sep. 4

8:04 pm - 1:21 pmPDX-BOI

16h 17m1 stop

2:16 pm - 11:12 amBOI-PDX

21h 56m1 stop

$175Spirit Airlines

Find Deal

vie., sep. 5 - dom., sep. 7

Hawaiian Airlines flights from Portland to Idaho

Our best Hawaiian Airlines deals on Portland to Idaho flight tickets

Hawaiian Airlines

Aug 27

PDX9:40 pmPortland

1h 19m

BOI11:59 pmBoise Air Term. Gowen Fld

Sep 2

BOI4:00 pmBoise Air Term. Gowen Fld

1h 22m

PDX4:22 pmPortland

$116

Find similar

Hawaiian Airlines

Aug 30

PDX9:40 pmPortland

1h 19m

BOI11:59 pmBoise Air Term. Gowen Fld

Sep 4

BOI6:00 amBoise Air Term. Gowen Fld

1h 20m

PDX6:20 amPortland

$134

Find similar

Hawaiian Airlines

Aug 30

PDX9:40 pmPortland

1h 19m

BOI11:59 pmBoise Air Term. Gowen Fld

Sep 8

BOI8:31 pmBoise Air Term. Gowen Fld

1h 19m

PDX8:50 pmPortland

$137

Find similar

Southwest flights from Portland to Idaho

Our best Southwest deals on Portland to Idaho flight tickets

Southwest

Aug 27

PDX10:55 amPortland

10h 30m

2 stops

BOI10:25 pmBoise Air Term. Gowen Fld

Sep 3

BOI11:30 amBoise Air Term. Gowen Fld

6h 30m

1 stop

PDX5:00 pmPortland

$162

Find similar

Southwest

Aug 29

PDX5:55 pmPortland

5h 10m

1 stop

BOI12:05 amBoise Air Term. Gowen Fld

Sep 2

BOI11:30 amBoise Air Term. Gowen Fld

6h 30m

1 stop

PDX5:00 pmPortland

$164

Find similar

Southwest

Aug 29

PDX5:55 pmPortland

5h 10m

1 stop

BOI12:05 amBoise Air Term. Gowen Fld

Aug 31

BOI1:05 pmBoise Air Term. Gowen Fld

7h 45m

1 stop

PDX7:50 pmPortland

$182

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandBoise

PDX - BOI

PDXBOI

Portland

mié. 8/27

9:40 pm-11:59 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

mar. 9/2

4:00 pm-4:22 pm

Nonstop1h 22m

$116

PortlandBoise

PDX - BOI

PDXBOI

Portland

mar. 8/26

9:40 pm-11:59 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

mié. 9/3

6:00 am-6:20 am

Nonstop1h 20m

$117

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 8/23

2:30 pm-4:50 pm

Nonstop1h 20m

Boise Air Term. Gowen Fld

dom. 8/24

6:00 am-6:20 am

Nonstop1h 20m

$123

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 8/30

9:40 pm-11:59 pm

Nonstop1h 19m

Boise Air Term. Gowen Fld

jue. 9/4

6:00 am-6:20 am

Nonstop1h 20m

$134

PortlandBoise

PDX - BOI

PDXBOI

Portland

mié. 8/27

7:15 am-1:06 pm

1 stop4h 51m

Boise Air Term. Gowen Fld

sáb. 8/30

2:00 pm-4:59 pm

1 stop3h 59m

$151

PortlandBoise

PDX - BOI

PDXBOI

Portland

mié. 8/27

10:55 am-10:25 pm

2 stops10h 30m

Boise Air Term. Gowen Fld

mié. 9/3

11:30 am-5:00 pm

1 stop6h 30m

$162

PortlandBoise

PDX - BOI

PDXBOI

Portland

vie. 8/29

5:55 pm-12:05 am

1 stop5h 10m

Boise Air Term. Gowen Fld

mar. 9/2

11:30 am-5:00 pm

1 stop6h 30m

$164

PortlandBoise

PDX - BOI

PDXBOI

Portland

vie. 9/5

8:04 pm-1:21 pm

1 stop16h 17m

Boise Air Term. Gowen Fld

lun. 9/8

9:16 pm-11:12 am

1 stop14h 56m

$165

PortlandBoise

PDX - BOI

PDXBOI

Portland

sáb. 8/30

3:18 pm-8:20 pm

1 stop4h 02m

Boise Air Term. Gowen Fld

jue. 9/4

5:45 am-8:15 am

1 stop3h 30m

$171

PortlandBoise

PDX - BOI

PDXBOI

Portland

vie. 9/5

8:04 pm-1:21 pm

1 stop16h 17m

Boise Air Term. Gowen Fld

dom. 9/7

2:16 pm-11:12 am

1 stop21h 56m

$175

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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, April 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 $218. If you don’t want to visit Idaho in April, then you should wait until August to fly from Portland, when ticket prices are also cheap, with an average price of $219.

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 $223. On the other hand, Sunday 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 $328.

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 evening. momondo users have found flights departing from Portland to Idaho in the evening for as low as $248. 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 afternoon is when there is more demand to fly to Idaho, so prices are often more expensive at around $344 per ticket.

What is the cheapest Portland to Idaho flight route?

Fly from Portland to Boise Air Term. Gowen Fld 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 $271 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 $192 on momondo.

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

There are 4 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	$76
Fastest flight time	1h 05m
Direct flights	Every day
Airports in Idaho	5 airports

The best one-way flight to Idaho from Portland in the past 72 hours is $76. The best round-trip flight deal from Portland to Idaho found on momondo in the last 72 hours is $116.

The fastest flight from Portland to Idaho takes 1h 05m

Direct flights go from Portland to Idaho every day.

There are 5 airports near Idaho: Idaho Falls Fanning Field (IDA), Spokane (GEG), Lewiston Nez Perce Rgnl (LWS), Boise Air Term. Gowen Fld (BOI), Jackson Hole (JAC)

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 July 2025, there are 6 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 Embraer 175, representing 43.44% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 16.80%, Boeing 737 at 15.44%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 12.16%.

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 $68	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Spirit Airlines	PriceFrom $91	Free Cancellation	Rating 6.3 8,048 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $150	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $157	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Delta	PriceFrom $166	Free Cancellation	Rating 8.0 7,981 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

Flights to New Yorkfrom $39

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Flights to Orlandofrom $54

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Flights to San Franciscofrom $49

Flights to Washington, D.C.from $49

Flights to Bostonfrom $77

Flights to Atlantafrom $29

Flights to Dallasfrom $55

Flights to Seattlefrom $93

Cheap flights from Portland to Idaho from $76

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 8/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Find the cheapest flights from Portland to Idaho

Cheap round-trip flights

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Cheap last minute flights

Cheap direct flights

Hawaiian Airlines flights from Portland to Idaho

Our best Hawaiian 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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Use the filters below to find and compare flights from Portland to Idaho that are best for you.

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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

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 Boise Air Term. Gowen Fld 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 4 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?

Southwest, Alaska Airlines, and Hawaiian Airlines 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 July 2025, there are 23 flights per day flying from Portland to Idaho. The most common time of day flights depart is 9:00PM, with 36% of flights taking off in the afternoon.

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

The number of flights available between Portland and Idaho is 167 per week as of July 2025. The most frequent departure day is Wed, with 16% 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