￥15,820 Cheap Flights from Idaho Falls (IDA) to Seattle (SEA)

View ￥15,820 flight on Mon, Apr 6, 2026Opens in a new window

Popular airlines from Idaho Falls Regional Airport (IDA) to Seattle-Tacoma International Airport (SEA)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 40% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Idaho Falls to Seattle (IDA-SEA)

Prices were available within the past 7 days and start at ￥15,820 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Idaho Falls (IDA) to Seattle (SEA)

January is typically the cheapest month to fly

From ￥19,707 - ￥52,670 per traveler.

Frequently asked questions

How much is a flight from IDA to Sea-Tac Airport?
The lowest price advertised for a round-trip journey between IDA and Sea-Tac Airport is . But you better get moving. This figure is taken from fares listed within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Idaho Falls Regional Airport to Sea-Tac Airport?
The majority of flights can be conveniently canceled online, but whether or not you incur a fee varies between airlines. If you do have to cancel your escape, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Idaho Falls Regional Airport to SEA that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Idaho Falls Regional Airport (IDA) to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from IDA to SEA?
It takes approximately 5 hours and 8 minutes to fly from IDA to Sea-Tac Airport. But with some TV shows and a few interesting magazines, the time will go by quicker.
How far is the flight from Idaho Falls Regional Airport to Seattle - Tacoma Intl. Airport (SEA)?
It's just 910 kilometers from Idaho Falls Regional Airport (IDA) to Sea-Tac Airport. It's quite possible that you'll spend more time getting to and from the airport than actually flying!
Which airlines fly direct from IDA to Sea-Tac Airport?
Check out Alaska Airlines (AS) if you want to fly directly from Idaho Falls Regional Airport (IDA) to Seattle - Tacoma Intl. Airport (SEA). This popular airline offers 30 flights monthly, so you're sure to find one that fits your travel schedule.
Are Idaho Falls Regional Airport to SEA flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Idaho Falls Regional Airport to SEA can be hit-or-miss. You might be lucky and score a bargain, but then again, you could miss out! If you'd prefer to play it safe and start your travel planning ahead of time, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines list their prices so far in advance. Our top tip? Check back often as prices are updated frequently.

Travel information

Origin airport
Idaho Falls Regional
Destination airport
Seattle - Tacoma Intl.
Distance
903 km
Average flight time
1 hour 4 mins

Book with confidence

Idaho Falls to Seattle Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Idaho Falls to will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring Seattle.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IDA to SEA flights that won’t make your bank account wince. Ready to temporarily leave behind Idaho Falls for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SEA with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Idaho Falls to Seattle Flights

Explore a world of travel with Expedia

*Available to Expedia members.