Idaho Falls to Seattle (IDA–SEA) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
IDA–SEA is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 565 miles in approximately 1h 56m. Beyond nonstop, 19 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: HA, QR | 28 | E75 | 1h56-2h03 | – | Oneworld | HA, QR |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Seattle from Idaho Falls
| Metric | IDA→SEA | JAC→SEA | SUN→SEA |
|---|---|---|---|
| Distance from IDA | – | 67 mi | 112 mi |
| Nonstop airlines | 1 | 4 | 2 |
| Weekly flights | 42 | 4 | 5 |
| Flight time | 1h 56m | 2h 14m | 1h 58m |
Travel Essentials
IDA: MDT · SEA: PDT
When it's 6:00 PM in Idaho Falls, it's 5:00 PM in Seattle.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
IDA–SEA Quick Facts
Frequently Asked Questions
Flights from IDA to SEA
Idaho Falls Regional Airport (IDA) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines. With 42 weekly departures, this is a heavily served route.
IDA to SEA Flight Duration and Schedule
Nonstop flight time from IDA to SEA ranges from 1 hours 56 minutes to 2 hours 5 minutes. The route covers a distance of 565 miles (909 km). There are approximately 42 weekly flights outbound and 43 return, totaling 85 flights per week in both directions.
Connecting Options and Alternatives
19 one-stop connections are available, with the fastest taking approximately 3 hours via BOI. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Jackson (JAC), Hailey (SUN) and Bozeman (BZN).