$185 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
Boise1 stop$369
Idaho Falls
Idaho Falls2 stops$448
Spokane
Spokane1 stop$402
Boise
Boise1 stop$369
Idaho Falls
Idaho Falls2 stops$448
Spokane
Spokane1 stop$402

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

Mon, Aug 24 - Mon, Aug 31
United Airlines Logo
6:03 am - 11:28 am
PWM
-
BOI
7h 25m
1 stop
United Airlines Logo
12:24 pm - 9:23 pm
BOI
-
PWM
6h 59m
1 stop
$369United Airlines
Wed, Oct 21 - Wed, Oct 28
United Airlines Logo
6:00 am - 11:28 am
PWM
-
BOI
7h 28m
1 stop
United Airlines Logo
5:00 am - 4:02 pm
BOI
-
PWM
9h 02m
1 stop
$369United Airlines
Sat, Oct 24 - Tue, Oct 27
Delta Logo
6:01 am - 1:34 pm
PWM
-
BOI
9h 33m
1 stop
Delta Logo
1:40 pm - 11:35 pm
BOI
-
PWM
7h 55m
1 stop
$369Delta
Wed, Oct 21 - Wed, Oct 28
American Airlines Logo
7:00 am - 2:33 pm
PWM
-
BOI
9h 33m
1 stop
American Airlines Logo
12:19 pm - 11:46 pm
BOI
-
PWM
9h 27m
2 stops
$374American Airlines
Wed, Oct 21 - Tue, Oct 27
Delta Logo
4:47 pm - 11:59 pm
PWM
-
BOI
9h 12m
2 stops
Delta Logo
1:40 pm - 11:35 pm
BOI
-
PWM
7h 55m
1 stop
$374Delta
Wed, Sep 9 - Wed, Sep 23
United Airlines Logo
6:00 am - 11:26 am
PWM
-
BOI
7h 26m
1 stop
United Airlines Logo
7:05 pm - 9:08 am
BOI
-
PWM
12h 03m
2 stops
$374United Airlines
Wed, Oct 21 - Wed, Oct 28
Southwest Logo
5:40 am - 2:45 pm
PWM
-
BOI
11h 05m
2 stops
Southwest Logo
11:20 am - 10:35 pm
BOI
-
PWM
9h 15m
2 stops
$379Southwest
Mon, Aug 24 - Mon, Aug 31
American Airlines Logo
5:30 am - 4:49 pm
PWM
-
BOI
13h 19m
2 stops
American Airlines Logo
8:01 am - 10:48 pm
BOI
-
PWM
12h 47m
2 stops
$386American Airlines
Fri, Oct 23 - Fri, Oct 30
Delta Logo
6:01 am - 11:50 am
PWM
-
GEG
8h 49m
1 stop
Delta Logo
1:00 pm - 11:35 pm
GEG
-
PWM
7h 35m
1 stop
$404Delta
Wed, Oct 7 - Tue, Oct 27
American Airlines Logo
7:00 am - 1:21 pm
PWM
-
GEG
9h 21m
1 stop
American Airlines Logo
6:30 am - 11:40 pm
GEG
-
PWM
14h 10m
2 stops
$405American Airlines
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.

How much is a round-trip flight from Portland, Maine to Idaho?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland, Maine to Idaho departing in October.

Flight prices are typical for this route right now.

Flights to Idaho from Portland, Maine usually cost between $365 and $444 in October.
The lowest price found in the past 5 days was $369 on Delta (Oct 24-Oct 27).

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 December, when the average cost of round-trip tickets is $717 and $712 respectively.

Find deals

Good to know

Low season

December

Cheapest flight

$185
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly and prices are also 8% 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)