Cheap flights from Portland to Idaho from $46
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 8/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Alaska Airlines flights from Portland to Idaho
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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?
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 January to fly from Portland, when ticket prices are also cheap, with an average price of $227.
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 $239. On the other hand, Thursday 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 $299.
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 $251. 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 $319 per ticket.
What is the cheapest Portland to Idaho flight route?
Fly from Portland to Idaho Falls Fanning Field 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 20 weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $275 when searching 20 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 $196 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.
What is the cheapest airline that flies from Portland to Idaho?
Allegiant Air, Southwest, and Alaska Airlines are the most popular carriers operating from Portland to Idaho
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 78% 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.
How many flights depart from Portland to Idaho on average per day?
As of June 2025, there are 26 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 184 per week as of June 2025. The most frequent departure day is Fri, 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
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 June 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 48.58% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 16.26%, Boeing 737-900 Passenger/BBJ3 (winglets) at 12.67%, and Boeing 737 at 10.40%.
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 | ||
|---|---|---|---|---|---|
| PriceFrom $68 | Free Cancellation | Rating 7.3 722 reviews | |||
| PriceFrom $87 | Free Cancellation | Rating 6.3 8,060 reviews | |||
| PriceFrom $150 | Free Cancellation | Rating 7.8 2,501 reviews | |||
| PriceFrom $164 | Free Cancellation | Rating 8.0 10,000 reviews | |||
| PriceFrom $166 | Free Cancellation | Rating 8.0 7,963 reviews |
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.