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

View AU$173 flight on Wed, 20 May 2026Opens in a new window

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

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 35% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$301 Return, found 23 hours ago
AU$301
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$301 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$345 Return, found 23 hours ago
AU$345
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$345 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$360 Return, found 23 hours ago
AU$360
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$360 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$374 Return, found 23 hours ago
AU$374
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$374 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$403 Return, found 23 hours ago
AU$403
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$403 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$407 Return, found 23 hours ago
AU$407
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$407 found 23 hours ago
Alaska Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$418 Return, found 23 hours ago
AU$418
Return
found 23 hours ago
Select Alaska Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$418 found 23 hours ago
Delta
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$427 Return, found 23 hours ago
AU$427
Return
found 23 hours ago
Select Delta flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$427 found 23 hours ago
American Airlines
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$1,036 Return, found 23 hours ago
AU$1,036
Return
found 23 hours ago
Select American Airlines flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$1,036 found 23 hours ago
United
Wed, 20 May - Sun, 24 May
SEA
Seattle
IDA
Idaho Falls
AU$1,206 Return, found 23 hours ago
AU$1,206
Return
found 23 hours ago
Select United flight, departing Wed, 20 May from Seattle to Idaho Falls, returning Sun, 24 May, priced at AU$1,206 found 23 hours ago

Frequently asked questions

How much is a flight from SEA to Idaho Falls Regional Airport (IDA)?
Pack your bags, because round-trip flights between Sea-Tac Airport and Idaho Falls Regional Airport start from AU$301. That's based on airfares available within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book today to lock in the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Idaho Falls Regional Airport (IDA)?
Every air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Sea-Tac Airport to IDA 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 SEA to Idaho Falls Regional Airport (IDA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to IDA?
The flight distance from Seattle - Tacoma Intl. Airport (SEA) (SEA) to Idaho Falls Regional Airport (IDA) (IDA) is just 910 kilometres. You'll be disembarking the plane and collecting your suitcase from the carousel before you know it.
Which airlines fly direct from SEA to IDA?
Offering 30 flights monthly, Alaska Airlines (AS) is a popular choice when flying directly from Seattle - Tacoma Intl. Airport (SEA) to Idaho Falls Regional Airport.
Are Seattle - Tacoma Intl. Airport (SEA) to IDA flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from SEA to IDA can be hit-or-miss. It is possible to score a bargain, but then again, you could miss out! If you'd rather play it safe and start your travel planning early on, Expedia compares flight deals up to 12 months in advance. Just keep in mind that not all airlines list their prices that far in advance. Our advice? Check back often as prices are updated frequently.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Idaho Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Return price
AU$301
Distance
903 km
Average flight time
2 hours 47 mins

Explore a world of travel with Expedia

*Available to Expedia members.