Flights to Sacajawea Historic Byway, Idaho from NT$9,545

View NT$3,197 flight on Tue, 2026/2/10Opens in a new window

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How much is the cheapest flight to Sacajawea Historic Byway?

Prices were available within the past 7 days and start at NT$3,197 for one-way flights and NT$9,545 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Feb 9 - Fri, Feb 13
SEA
Seattle
IDA
Idaho Falls
NT$9,545 Roundtrip, found 6 days ago
NT$9,545
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Feb 9 from Seattle to Idaho Falls, returning Fri, Feb 13, priced at NT$9,545 found 6 days ago
Delta
Thu, Mar 19 - Fri, Mar 27
SEA
Seattle
IDA
Idaho Falls
NT$10,620 Roundtrip, found 1 day ago
NT$10,620
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Mar 19 from Seattle to Idaho Falls, returning Fri, Mar 27, priced at NT$10,620 found 1 day ago
Delta
Mon, Feb 9 - Fri, Feb 13
SEA
Seattle
IDA
Idaho Falls
NT$11,400 Roundtrip, found 6 days ago
NT$11,400
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, Feb 9 from Seattle to Idaho Falls, returning Fri, Feb 13, priced at NT$11,400 found 6 days ago
American Airlines
Sat, Jan 10 - Sat, Jan 17
SEA
Seattle
IDA
Idaho Falls
NT$14,199 Roundtrip, found 5 days ago
NT$14,199
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Jan 10 from Seattle to Idaho Falls, returning Sat, Jan 17, priced at NT$14,199 found 5 days ago
United
Mon, Feb 9 - Fri, Feb 13
SEA
Seattle
IDA
Idaho Falls
NT$14,428 Roundtrip, found 6 days ago
NT$14,428
Roundtrip
found 6 days ago
Select United flight, departing Mon, Feb 9 from Seattle to Idaho Falls, returning Fri, Feb 13, priced at NT$14,428 found 6 days ago

Frequently asked questions

How do I find cheap flights to Sacajawea Historic Byway that have flexible change policies?
It's as easy as can be with Expedia. Firstly, type in your travel dates and hit "Search." Step 2: Check the "No change fee" box directly under the "Flexible change policies" filter to the left of the screen. Step 3. Score a cheap and flexible fare to Sacajawea Historic Byway.
How can I find cheap tickets to Sacajawea Historic Byway?
One of the easiest ways to get your hands on cheap tickets to Sacajawea Historic Byway is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It will bring up the cheapest prices for nearby days. The lowest price for a flight to Sacajawea Historic Byway in the last seven days was NT$9,545. Booking ahead will generally help you get an even better deal.
How much is a flight to Sacajawea Historic Byway?
If you were jetting one way from Seattle (SEA), you could've locked in a low-cost fare for NT$3,197 in the last seven days. Round-trip journeys to Sacajawea Historic Byway ranged from only NT$9,545 to NT$14,428 during this same period.
When is the cheapest time to fly to Sacajawea Historic Byway?
If you'd rather spend your vacation savings experiencing Sacajawea Historic Byway rather than on your flight there, leave earlier in the week. The cheapest day to travel is normally Tuesday, with Monday running a close second. With many folks traveling on weekends, Saturday tends to have the costliest fares.
How much is a plane ticket to Sacajawea Historic Byway?
In the last seven days, airfares to Sacajawea Historic Byway ranged between NT$9,545 and NT$14,428. Prices depend on the time of departure, seating class, airline and how early you make your booking.
What months are the cheapest to book a flight to Sacajawea Historic Byway?
February is the best month to score bargain flights to Sacajawea Historic Byway. Keep in mind that the most expensive time to purchase tickets in the USA isn't during the peak of summer, but the month of December.

Travel information

Destination airport
Idaho Falls Regional
Destination airport IATA code
IDA
Destination city name
Idaho Falls
Roundtrip price
NT$9,545

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