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Find cheap one-way flights from Seattle to Idaho Falls starting at CNY 75.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

When is the cheapest time to book flights from Seattle to Idaho Falls?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Seattle to Idaho Falls

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Alaska Airlines
From US$75
Delta Air Lines
From US$91
United Airlines
From US$233
American Airlines
From US$602
ANA airlines

Find more flights and airlines

Find cheap flights from Seattle to Idaho Falls by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to Idaho Falls.

  • Cheapest
    Alaska Airlines
    SEA
    21:15
    1h 41m
    Direct
    IDA
    23:56
    Seattle-Tacoma International Airport - Idaho Falls Regional Airport
    Tue, May 14Alaska Airlines
    US$75
  • Alaska Airlines
    SEA
    21:15
    1h 41m
    Direct
    IDA
    23:56
    Seattle-Tacoma International Airport - Idaho Falls Regional Airport
    Tue, May 14Alaska Airlines
    US$75
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Seattle (SEA) to Idaho Falls (IDA) the cheapest?

    Airlines adjust prices for flights from Seattle to Idaho Falls based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Seattle (SEA) to Idaho Falls (IDA) cost?

    According to Trip.com's data, the lowest price is around $402.
  • How long does it take to fly from Seattle (SEA) to Idaho Falls (IDA) and what is the distance?

    It takes around 1 hour 41 minutes to fly from Seattle (SEA) to Idaho Falls (IDA).
  • What is the transportation method from the main airport to downtown in Idaho Falls?

    • The distance from Idaho Falls Regional Airport to downtown is about 3km. It takes about 20 minutes by taxi.
  • What are the most popular airlines that fly from Seattle (SEA) to Idaho Falls (IDA)?

    Airlines with flights from Seattle (SEA) to Idaho Falls (IDA): Alaska Airlines and Qatar Airways.

How to find a cheap flight from Seattle to Idaho Falls

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Seattle to Idaho Falls. Book your flights at the right time and save more.
1
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Seattle to Idaho Falls Flight Information

Cheapest nonstop flight price

$75

Cheapest round-trip ticket price

$162

Off-season for travel

May

Peak season for travel

October

Flight distance

908.63km

Average flight time

1 hour 41 minutes

Popular airline

Alaska Airlines