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

View AU$173 flight on Mon, 21 Apr. 2025Opens in a new window

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

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.

Flight from Idaho Falls to Seattle route information
Origin airport
Idaho Falls Regional
Destination airport
Seattle - Tacoma Intl.
Distance
903 km

Your quick guide to flights from Idaho Falls to Seattle

Pick up great flights from Idaho Falls to Seattle

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Idaho Falls to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Idaho Falls to Seattle that take around hours.

Find cheap flights from Idaho Falls to Seattle

From the great flight deals with prices currently ranging from to , you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Idaho Falls to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in .

Reasons to book your flight from Idaho Falls to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Idaho Falls to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from IDA to SEA?
The lowest price advertised for a round-trip flight between Idaho Falls Regional Airport (IDA) and Sea-Tac Airport is . But you better move fast. This figure is based on fares available 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 (IDA) to Seattle - Tacoma Intl. Airport (SEA)?
Most flights can be cancelled online, but each air carrier has a different set of terms and conditions. If you do decide to cancel your flight, visit our Customer Service Portal and follow the instructions.
How do I find cheap flights from Idaho Falls Regional Airport to Seattle - Tacoma Intl. Airport (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 to SEA flights, you’ll see a “no change fees” filter for you to select.
How far is the flight from Idaho Falls Regional Airport to Sea-Tac Airport?
Forget about a movie marathon on this flight — it’s only 910 kilometres from Idaho Falls to SeaTac. Sit down, order some snacks and you’ll be there before you know it.
Which airlines fly direct from IDA to SEA?
Check out the airfares with Alaska Airlines (AS) if you want to travel straight from IDA to Seattle - Tacoma Intl. Airport (SEA). This popular airline operates 30 flights monthly, so you’re sure to find one that fits your travel schedule.
Are Idaho Falls Regional Airport (IDA) to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes score a bargain, with some super cheap fares from Idaho Falls Regional Airport to Sea-Tac Airport arising a few weeks before the departure date. If you’d rather book ahead of time, Expedia compares and updates all the best flight deals frequently — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines release prices so far in advance.

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