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Not ready to book? to track prices.Find the cheapest flights from Seattle to Idaho Falls
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Delta flights from Seattle to Idaho Falls
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Hawaiian Airlines flights from Seattle to Idaho Falls
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How to get the cheapest flight ticket from Seattle to Idaho Falls
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 Falls?
If you aren’t able to travel to Idaho Falls during the month of April, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $238.
What is the cheapest day to depart on your flight to Idaho Falls?
Our data shows that Wednesday is the least expensive day to fly to Idaho Falls. Tickets to fly out on this day can be as low as $268. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Idaho Falls on Sunday is $448.
What is the cheapest time of day to depart on your flight to Idaho Falls?
Our most recent data shows that the best time of day to fly to Idaho Falls is in the afternoon. Flights from Seattle to Idaho Falls during this time can be as low as $239. Try not to purchase tickets at noon because they tend to be around $328. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Seattle/Tacoma Intl to Idaho Falls Fanning Field flight route?
Fly from Seattle/Tacoma Intl to Idaho Falls Fanning Field for the best Seattle/Tacoma Intl - Idaho Falls Fanning Field flight prices
How far in advance should I book a flight to Idaho Falls?
You are more likely to see cheaper flights to Idaho Falls from Seattle when booking 17 weeks ahead of your departure date. In general, you can expect to find flights to Idaho Falls for around $313 when searching 17 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Idaho Falls from Seattle for as low as $222 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Idaho Falls Fanning Field flights?
There are 4 cabin classes available to choose from on Seattle/Tacoma Intl to Idaho Falls Fanning Field flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Seattle to Idaho Falls flights?
No. A direct flight is the cheapest option for a flight between Seattle to Idaho Falls.
How have Seattle to Idaho Falls flight prices changed over time?
As of June 2025, prices for Seattle to Idaho Falls flights are approximately 23% more expensive when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Idaho Falls Fanning Field?
Hawaiian Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Idaho Falls Fanning Field
What airlines fly to Idaho Falls?
Alaska Airlines, Delta and United Airlines are the top three most popular airlines that fly to Idaho Falls 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 Falls. Keep in mind that there are 4 different airlines that fly to Idaho Falls on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Idaho Falls on average per day?
2 flights are operational daily from Seattle to Idaho Falls as of June 2025. The most popular departure time for this route is 7:00PM, with 63% of flights per day taking off in the evening.
How many flights depart from Seattle to Idaho Falls on average per week?
15 flights are operational weekly from Seattle to Idaho Falls as of June 2025. The most popular departure day for this route is Mon, with 40% of flights per week taking off on this day.
When to book flights from Seattle to Idaho Falls
Cheap Seattle to Idaho Falls (SEA to IDA) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Idaho Falls
How far is Seattle/Tacoma Intl to Idaho Falls Fanning Field by plane?
There are 574.1 mi between Seattle/Tacoma Intl and Idaho Falls Fanning Field. Flights usually cover this in 1h 35m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?
As of June 2025, there is 1 operator available to choose from for flights from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport?
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 Seattle/Tacoma Intl Airport to Idaho Falls Fanning Field Airport.
What documentation or ID do you need to fly to Idaho Falls Fanning Field Airport?
The travel and health documents you'll need for your trip to Idaho Falls Fanning Field Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Idaho Falls Fanning Field Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Idaho Falls?
Based on momondo bookings for flights between Seattle and Idaho Falls, the leading plane model is Embraer 175, making up 96.97% of the total bookings. Other popular models include Boeing 737-800 Passenger/BBJ2 (winglets) with 3.03%.
What is the most popular airline from Seattle to Idaho Falls?
momondo data reveals that the most frequently booked airline on the route from Seattle to Idaho Falls is Alaska Airlines, representing 100% of all bookings.
Best airlines flying from Seattle to Idaho Falls
Compare and see reviews for airlines that fly from Seattle to Idaho Falls with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $187 | Free Cancellation | Rating 8.0 10,000 reviews |
Alaska Airlines Flights From Seattle to Idaho Falls
Alaska Airlines flight deals from Seattle to Idaho Falls start from $187 round-trip. Over the 9 Alaska Airlines flights for this route in a normal week, average airfare is usually $321 round-trip - but some users have found much cheaper deals with momondo.
Traveling to a place near Idaho Falls?
Book flights to Idaho Falls if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Idaho Falls?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seattle to Idaho Falls. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seattle to Idaho Falls with flexible booking policies on momondo?
Yes. momondo allows you to filter the results for Seattle to Idaho Falls flights to just show those with flexible booking policies.
How can momondo help me find flights from Seattle to Idaho Falls?
Once all potential Seattle to Idaho Falls flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from Seattle to Idaho Falls right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Idaho Falls 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 Falls and let you know when they change.