Cheap Flights From Seattle - Tacoma Intl. (SEA) To Idaho Falls Regional (IDA)

Wander Wisely with exceptional service, 24/7 supportOpens in a new window

Feel at ease with free flight cancellations within 24 hours of booking

Change your flight without a fee on select flights

Find The Best Dates To Fly

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

The cheapest flights to Idaho Falls Regional found within the past 7 days were CA $349 round trip and CA $276 one way. Prices and availability subject to change. Additional terms may apply.

Sat, Aug. 23 - Wed, Aug. 27
SEA
Seattle
IDA
Idaho Falls
CA $349 Roundtrip, found 4 hours ago
CA $349
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 23 from Seattle to Idaho Falls, returning Wed, Aug. 27, priced at CA $349 found 4 hours ago
Sat, Aug. 23 - Wed, Aug. 27
SEA
Seattle
IDA
Idaho Falls
CA $378 Roundtrip, found 4 hours ago
CA $378
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 23 from Seattle to Idaho Falls, returning Wed, Aug. 27, priced at CA $378 found 4 hours ago
Sat, Aug. 23 - Wed, Aug. 27
SEA
Seattle
IDA
Idaho Falls
CA $391 Roundtrip, found 4 hours ago
CA $391
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 23 from Seattle to Idaho Falls, returning Wed, Aug. 27, priced at CA $391 found 4 hours ago
Sat, Aug. 23 - Wed, Aug. 27
SEA
Seattle
IDA
Idaho Falls
CA $421 Roundtrip, found 4 hours ago
CA $421
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Aug. 23 from Seattle to Idaho Falls, returning Wed, Aug. 27, priced at CA $421 found 4 hours ago
Mon, Sep. 8 - Fri, Sep. 12
SEA
Seattle
IDA
Idaho Falls
CA $473 Roundtrip, found 2 days ago
CA $473
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from Seattle to Idaho Falls, returning Fri, Sep. 12, priced at CA $473 found 2 days ago
Mon, Sep. 8 - Fri, Sep. 12
SEA
Seattle
IDA
Idaho Falls
CA $516 Roundtrip, found 2 days ago
CA $516
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Sep. 8 from Seattle to Idaho Falls, returning Fri, Sep. 12, priced at CA $516 found 2 days ago
Sat, Aug. 9 - Fri, Aug. 15
SEA
Seattle
IDA
Idaho Falls
CA $546 Roundtrip, found 3 days ago
CA $546
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Aug. 9 from Seattle to Idaho Falls, returning Fri, Aug. 15, priced at CA $546 found 3 days ago
Wed, Aug. 13 - Sun, Aug. 17
SEA
Seattle
IDA
Idaho Falls
CA $558 Roundtrip, found 5 days ago
CA $558
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Aug. 13 from Seattle to Idaho Falls, returning Sun, Aug. 17, priced at CA $558 found 5 days ago
Sat, Aug. 9 - Sat, Aug. 16
SEA
Seattle
IDA
Idaho Falls
CA $617 Roundtrip, found 3 days ago
CA $617
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Aug. 9 from Seattle to Idaho Falls, returning Sat, Aug. 16, priced at CA $617 found 3 days ago
Sat, Aug. 9 - Tue, Aug. 12
SEA
Seattle
IDA
Idaho Falls
CA $625 Roundtrip, found 3 days ago
CA $625
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Sat, Aug. 9 from Seattle to Idaho Falls, returning Tue, Aug. 12, priced at CA $625 found 3 days ago

Frequently asked questions

Are there direct flights from Sea-Tac Airport to Idaho Falls Regional Airport (IDA)?
The only thing separating you and your next extraordinary adventure is just one flight. Alaska Airlines is the only air carrier that operates nonstop services between Seattle - Tacoma Intl. Airport (SEA) and IDA, so it's a good idea to book well ahead of your departure.
What airlines fly from SEA to IDA?
Hoping to fly straight from Sea-Tac Airport to IDA? No problem. Alaska Airlines offers up to 30 flights per month and is the preferred choice for many seasoned travelers.
What is the best day to buy a plane ticket?
Airfares offered on Friday tend to be the cheapest, according to flight demand on Travelocity.ca in 2021. Purchasing your airfares on a Thursday or Saturday can also provide better value, however our advice if you're looking to save money is to avoid booking on a Wednesday or Sunday. Our data shows that those two days have the highest ticket values on average, so keep this in mind if you're browsing flight deals.
What are the cheapest days to fly?
Frequent travellers may already know this, but earlier in the week is often the cheapest time to fly. Flights departing on a Monday are the cheapest of the week. Since flights towards the middle of the week tend to be more popular, this causes the prices to rise. This is why, on average, airfares booked on Travelocity.ca in 2021 were most expensive for Wednesday departures.
How far in advance can you book a flight?
Here's the deal: It is typically possible to start comparing international airfares on Travelocity.ca up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 2-4 weeks prior to their travel dates.*According to flight demand on Travelocity.ca from January to December 2021. Savings are subject to change and may vary depending on selections made.

Popular Flight Routes from Seattle (SEA)

Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle (SEA) today with the cheap prices from Travelocity!

Popular Flight Routes from Idaho Falls (IDA)

Travelers at IDA love to visit these top cities. Roam to the top destinations from Idaho Falls(IDA) today with the cheap prices from Travelocity!

*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.