$150 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 9/15. 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
Boise2 stops$334
Idaho Falls
Idaho Falls1 stop$509
Spokane
Spokane2 stops$309
Boise
Boise2 stops$334
Idaho Falls
Idaho Falls1 stop$509
Spokane
Spokane2 stops$309

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

Tue, Aug 25 - Sat, Aug 29
Delta Logo
4:47 pm - 11:26 pm
PWM
-
GEG
9h 39m
2 stops
Delta Logo
5:30 am - 9:31 pm
GEG
-
PWM
13h 01m
2 stops
$309Delta
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
7:28 am - 8:42 pm
PWM
-
GEG
16h 14m
2 stops
American Airlines Logo
5:20 am - 10:00 pm
GEG
-
PWM
13h 40m
2 stops
$315American Airlines
Wed, Sep 9 - Wed, Sep 23
United Airlines Logo
6:00 am - 3:31 pm
PWM
-
BOI
11h 31m
2 stops
United Airlines Logo
12:28 pm - 9:23 pm
BOI
-
PWM
6h 55m
1 stop
$334United Airlines
Wed, Aug 19 - Tue, Sep 1
Delta Logo
6:00 am - 11:26 pm
PWM
-
GEG
20h 26m
2 stops
Delta Logo
5:30 am - 11:13 pm
GEG
-
PWM
14h 43m
2 stops
$357Delta
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
7:28 am - 8:42 pm
PWM
-
GEG
16h 14m
2 stops
American Airlines Logo
5:40 am - 6:52 pm
GEG
-
PWM
10h 12m
1 stop
$367American Airlines
Wed, Oct 21 - Thu, Oct 29
Delta Logo
4:45 pm - 11:42 pm
PWM
-
GEG
9h 57m
2 stops
Delta Logo
12:56 pm - 11:36 pm
GEG
-
PWM
7h 40m
1 stop
$368Delta
Wed, Oct 21 - Thu, Oct 29
Delta Logo
4:45 pm - 11:42 pm
PWM
-
GEG
9h 57m
2 stops
Delta Logo
7:25 pm - 10:50 am
GEG
-
PWM
12h 25m
2 stops
$374Delta
Thu, Aug 20 - Fri, Aug 28
Delta Logo
6:05 am - 11:21 am
PWM
-
GEG
8h 16m
1 stop
Delta Logo
7:54 pm - 10:45 am
GEG
-
PWM
11h 51m
2 stops
$375Delta
Sat, Oct 31 - Tue, Nov 3
United Airlines Logo
3:27 pm - 9:30 pm
PWM
-
BOI
8h 03m
1 stop
United Airlines Logo
6:30 am - 4:02 pm
BOI
-
PWM
7h 32m
1 stop
$409United Airlines
Fri, Sep 18 - Mon, Sep 21
Southwest Logo
7:40 am - 2:10 pm
PWM
-
BOI
8h 30m
1 stop
Southwest Logo
12:10 pm - 9:30 pm
BOI
-
PWM
7h 20m
1 stop
$444Southwest
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 October and March, when the average cost of round-trip tickets is $582 and $535 respectively.

Find deals

Good to know

Low seasonDecember
Cheapest flight$150
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 12% 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)