Cheap flights from Seattle to Idaho from $88
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Idaho departing on 8/18. 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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How to get the cheapest flight ticket from Seattle 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, January is the cheapest month to fly from Seattle to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $186. If you don’t want to visit Idaho in January, then you should wait until September to fly from Seattle, when ticket prices are also cheap, with an average price of $187.
What is the cheapest day to depart on your flight to Idaho?
Our data shows that Thursday is the least expensive day to fly to Idaho. Tickets to fly out on this day can be as low as $201. On the other hand, Sunday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $288.
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 afternoon. momondo users have found flights departing from Seattle to Idaho in the afternoon for as low as $207. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Idaho, so prices are often more expensive at around $250 per ticket.
What is the cheapest Seattle/Tacoma Intl to Idaho flight route?
Fly from Seattle/Tacoma Intl to Boise Air Term. Gowen Fld for the best Seattle/Tacoma Intl - 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 Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Idaho for around $214 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho from Seattle for as low as $172 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Idaho flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl 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 Seattle/Tacoma Intl to Idaho?
Hawaiian Airlines, Alaska Airlines, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Idaho
What airlines fly to Idaho?
Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Idaho from Seattle according to our data. Alaska Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 3 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 Seattle to Idaho on average per day?
The number of flights available between Seattle and Idaho is 137 per day as of June 2025. The most frequent departure time is 5:00PM, with 48% of daily flights leaving in the afternoon.
How many flights depart from Seattle to Idaho on average per week?
As of June 2025, 959 flights take off from Seattle and land in Idaho each week. The most common flight departure day for this route is Wed, with 16% of weekly flights taking off on this day.
Cheap Seattle to Idaho flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Idaho
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Idaho?
Prices for flights from Seattle/Tacoma Intl Airport to Idaho are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Idaho?
There are 4 operators available for flights from Seattle/Tacoma Intl Airport to Idaho as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Idaho?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Idaho?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Idaho is Embraer 175, representing 44.17% of all bookings. The subsequent popular models are Boeing 737-800 Passenger/BBJ2 (winglets) at 19.96%, Boeing 737-900 Passenger/BBJ3 (winglets) at 17.19%, and Boeing 737 at 7.32%.
Best airlines flying from Seattle to Idaho
Compare and see reviews for airlines that fly from Seattle to Idaho with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $98 | Free Cancellation | Rating 8.0 7,964 reviews | |||
| PriceFrom $104 | Free Cancellation | Rating 7.8 2,507 reviews | |||
| PriceFrom $137 | Free Cancellation | Rating 8.0 10,000 reviews |
Why use momondo?
Why should I use momondo to find a flight deal from Seattle to Idaho?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Idaho from Seattle.
Can I find flights from Seattle to Idaho with flexible booking policies on momondo?
Flights from Seattle to Idaho with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Idaho?
momondo provides multiple filters to help you find the best flight to Idaho from Seattle. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seattle to Idaho right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Idaho now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Idaho and let you know when they change.