$190 Find Cheap Flights from Portland to Idaho - Compare and Save

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 Idaho departing on 9/11. 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
1 adult, Economy, 0 bags

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Cheap Flights from Portland to Idaho

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Boise
Boise1 stop$380
Idaho Falls
Idaho Falls2 stops$396
Spokane
Spokane1 stop$369
Boise
Boise1 stop$380
Idaho Falls
Idaho Falls2 stops$396
Spokane
Spokane1 stop$369

Book Cheap Portland to Idaho Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Idaho that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Idaho

Sat, Sep 5 - Fri, Sep 11
Delta Logo
6:05 am - 11:21 amPWM  Portland-GEG Spokane
8h 16m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:43 am - 11:29 pmGEG  Spokane-PWM Portland
8h 46m1 stop Atlanta Hartsfield-Jackson
$369Delta
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
6:03 am - 11:28 amPWM  Portland-BOI Boise Air Term. Gowen Fld
7h 25m1 stop Chicago O'Hare Intl
United Airlines Logo
12:24 pm - 9:23 pmBOI  Boise Air Term. Gowen Fld-PWM Portland
6h 59m1 stop Chicago O'Hare Intl
$380United Airlines
Sat, Sep 5 - Fri, Sep 11
American Airlines Logo
12:09 pm - 8:42 pmPWM  Portland-GEG Spokane
11h 33m2 stops Chicago O'Hare Intl Dallas/Fort Worth
American Airlines Logo
6:30 am - 11:47 pmGEG  Spokane-PWM Portland
14h 17m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$380American Airlines
Sat, Sep 5 - Fri, Sep 11
American Airlines Logo
10:31 am - 8:42 pmPWM  Portland-GEG Spokane
13h 11m2 stops New York LaGuardia Dallas/Fort Worth
American Airlines Logo
6:30 am - 11:47 pmGEG  Spokane-PWM Portland
14h 17m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl
$380American Airlines
Wed, Sep 2 - Sat, Sep 5
United Airlines Logo
7:40 am - 5:58 pmPWM  Portland-BOI Boise Air Term. Gowen Fld
12h 18m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
12:24 pm - 9:23 pmBOI  Boise Air Term. Gowen Fld-PWM Portland
6h 59m1 stop Chicago O'Hare Intl
$385United Airlines
Thu, Oct 29 - Sun, Nov 8
United Airlines Logo
5:50 am - 3:38 pmPWM  Portland-IDA Idaho Falls Fanning Field
11h 48m2 stops Newark Denver Intl
United Airlines Logo
7:00 am - 4:02 pmIDA  Idaho Falls Fanning Field-PWM Portland
7h 02m1 stop Denver Intl
$396United Airlines
Wed, Sep 2 - Sat, Sep 5
Southwest Logo
2:50 pm - 11:20 pmPWM  Portland-BOI Boise Air Term. Gowen Fld
10h 30m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
Southwest Logo
6:10 am - 9:05 pmBOI  Boise Air Term. Gowen Fld-PWM Portland
12h 55m2 stops Phoenix Sky Harbor Intl Baltimore/Washington
$401Southwest
Fri, Sep 4 - Wed, Sep 9
Delta Logo
2:14 pm - 9:57 pmPWM  Portland-BOI Boise Air Term. Gowen Fld
9h 43m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:03 am - 11:29 pmBOI  Boise Air Term. Gowen Fld-PWM Portland
10h 26m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$409Delta
Fri, Sep 4 - Wed, Sep 9
Delta Logo
4:47 pm - 11:59 pmPWM  Portland-BOI Boise Air Term. Gowen Fld
9h 12m2 stops Detroit Metropolitan Wayne County Minneapolis St Paul
Delta Logo
11:03 am - 11:29 pmBOI  Boise Air Term. Gowen Fld-PWM Portland
10h 26m2 stops Salt Lake City Atlanta Hartsfield-Jackson
$414Delta
Sun, Nov 1 - Wed, Nov 4
Southwest Logo
11:10 am - 12:05 amPWM  Portland-GEG Spokane
15h 55m2 stops Baltimore/Washington Phoenix Sky Harbor Intl
Southwest Logo
5:35 am - 9:45 pmGEG  Spokane-PWM Portland
13h 10m2 stops Sacramento Intl Baltimore/Washington
$450Southwest
Booking Insights

KAYAK's insights & trends for Portland to Idaho flights

Get data-powered insights and trends into flights from Portland to Idaho to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Idaho?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Idaho, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Idaho is February, when tickets cost $0 (return) on average. On the other hand, the most expensive months are December and June, when the average cost of round-trip tickets is $712 and $682 respectively.

Find deals

Good to know

Low season

December

Cheapest flight

$190
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 9% lower on average.
Flight from Portland to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Portland to Idaho?

    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 Idaho.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Idaho?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Idaho 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 Idaho?

    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 from Portland to Idaho with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Idaho?

    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 from Portland to Idaho up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Portland to Idaho

Information on your arrival and departure airports

Portland (PWM)