$182 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$368
Idaho Falls
Idaho Falls1 stop$479
Spokane
Spokane1 stop$368
Boise
Boise1 stop$368
Idaho Falls
Idaho Falls1 stop$479
Spokane
Spokane1 stop$368

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

Thu, Sep 17 - Mon, Sep 21
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
$368United Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
6:00 am - 11:39 am
PWM
-
GEG
8h 39m
1 stop
United Airlines Logo
5:00 am - 9:23 pm
GEG
-
PWM
13h 23m
2 stops
$368United Airlines
Tue, Sep 1 - Sat, Sep 5
American Airlines Logo
9:08 am - 8:42 pm
PWM
-
GEG
14h 34m
2 stops
American Airlines Logo
5:40 am - 10:15 pm
GEG
-
PWM
13h 35m
2 stops
$374American Airlines
Mon, Nov 2 - Sat, Nov 7
Southwest Logo
5:10 pm - 1:25 am
PWM
-
BOI
10h 15m
2 stops
Southwest Logo
2:50 pm - 10:30 am
BOI
-
PWM
17h 40m
2 stops
$379Southwest
Fri, Sep 11 - Wed, Sep 16
Delta Logo
4:45 pm - 10:56 pm
PWM
-
GEG
9h 11m
2 stops
Delta Logo
7:05 am - 11:56 pm
GEG
-
PWM
13h 51m
2 stops
$384Delta
Wed, Sep 9 - Wed, Sep 23
United Airlines Logo
3:37 pm - 9:45 pm
PWM
-
BOI
8h 08m
1 stop
United Airlines Logo
7:05 pm - 9:08 am
BOI
-
PWM
12h 03m
2 stops
$389United Airlines
Tue, Aug 18 - Tue, Aug 25
American Airlines Logo
5:30 am - 4:49 pm
PWM
-
BOI
13h 19m
2 stops
American Airlines Logo
8:01 am - 10:00 pm
BOI
-
PWM
11h 59m
2 stops
$391American Airlines
Tue, Aug 18 - Tue, Aug 25
United Airlines Logo
10:45 am - 9:37 pm
PWM
-
BOI
12h 52m
2 stops
United Airlines Logo
12:24 pm - 9:23 pm
BOI
-
PWM
6h 59m
1 stop
$393United Airlines
Thu, Sep 17 - Mon, Sep 21
Southwest Logo
5:55 am - 3:00 pm
PWM
-
GEG
12h 05m
2 stops
Southwest Logo
6:00 am - 9:35 pm
GEG
-
PWM
12h 35m
1 stop
$417Southwest
Fri, Sep 18 - Mon, Sep 21
Delta Logo
6:00 am - 1:01 pm
PWM
-
BOI
9h 01m
1 stop
Delta Logo
11:10 pm - 1:16 pm
BOI
-
PWM
12h 06m
2 stops
$430Delta
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 September.

Flight prices are below average for this route right now.

Flights to Idaho from Portland, Maine usually cost between $434 and $588 in September.
The lowest price found in the past 5 days was $368 on United Airlines (Sep 17-Sep 21).

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

$182
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)