Seattle to Idaho Falls (SEA–IDA) — Airlines, Schedules & Connections

SEA Airport Page →
565 mi airlines 14/wk
On-time Some delays Frequent delays
Flight Schedule 6 flights Verified 2h ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
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AS2450
AS Alaska
E75
1:59 PM
MDT
4:43 PM
MDT
1h 44m
—
M T W T F S S
Prices
✓
→
AS3026
AS Alaska
E75
2:32 PM
MDT
5:19 PM
MDT
1h 47m
—
M T W T F S S
Prices
✓
←
AS3318
AS Alaska
E75
6:00 AM
MDT
7:05 AM
MDT
2h 5m
—
M T W T F S S
Prices
✓
←
AS2459
AS Alaska
E75
8:00 AM
MDT
9:07 AM
MDT
2h 7m
—
M T W T F S S
Prices
✓
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AS2453
AS Alaska
E75L
5:20 PM
MDT
6:21 PM
MDT
2h 1m
—
M T W T F S S
Prices
✓
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AS3027
AS Alaska
E75
5:59 PM
MDT
7:02 PM
MDT
2h 3m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Seattle to Idaho Falls
1 carrier, 14 flights/week nonstop.
1 Airlines 14 Flights/wk 565 mi 1h 44m nonstop 7 1-stop hubs

SEA–IDA is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 565 miles in approximately 1h 44m. Beyond nonstop, 7 hubs offer 1-stop connections.

Also explore SEA Routes IDA Routes SEA Live Flights IDA Live Flights SEA Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop SEA–IDA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 14 E75 1h44-1h47 56% Oneworld –
Aircraft on this route
E75 Embraer E175 – AS
Alliance coverage
Oneworld: AS (14 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to IDA direction.
Mon
2
flights
Tue
2
flights
Wed
2
flights
Thu
2
flights
Fri
2
flights
Sat
2
flights
Sun
2
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
2
Nonstop flights
14
Outbound / wk
24
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to IDA.
1-STOP
One-Stop Connections
7
Hubs
~8h
Fastest
~24h
Longest
DAL ~8h 13m PHX ~13h 40m SLC ~16h 32m DEN ~19h 21m LAS ~20h 38m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
505
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → IDA
56%
Frequent delays expected. Consider flexible booking.
Departing
56%
Return
IDA → SEA
94%
Generally reliable. Most flights run on time.
Arriving
94%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Idaho Falls is 0 hours the same as Seattle.
SEA: MDT · IDA: MDT

When it's 6:00 PM in Seattle, it's 6:00 PM in Idaho Falls.
Distance & Flight Time
565 mi / 909 km
Nonstop flight time is approximately 1h 44m to 1h 47m.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

Facts

SEA–IDA Quick Facts

Key statistics for the Seattle to Idaho Falls route.
Route details
Distance565 mi / 909 km
Flight time1h 44m to 1h 47m
Time difference0 hours
Airlines (nonstop)1
Weekly flights14 out / 24 return
1-stop connections7 hubs
Origin: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m
Destination: IDA
Full nameIdaho Falls Regional Airport
IATA / ICAOIDA / KIDA
TimezoneAmerica/Boise
Passengers/yr0.6M
Elevation4,744 ft / 1,446 m
FAQ

Frequently Asked Questions

Common questions about SEA to IDA flights.
Nonstop flights from Seattle–Tacoma International Airport to Idaho Falls Regional Airport take approximately 1h 44m to 1h 47m. The route covers 565 miles.
1 airline operates nonstop service: Alaska Airlines.
There are approximately 14 nonstop flights per week from SEA to IDA. The return direction has about 24 weekly flights.
Yes, 1-stop connections are available through DAL, PHX, SLC, DEN, LAS, DFW and SNA. These options provide additional schedule flexibility.
Yes, return flights from IDA to SEA are available. Use the direction toggle at the top to view the return schedule.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from SEA to IDA

Seattle–Tacoma International Airport (SEA) and Idaho Falls Regional Airport (IDA) are connected by nonstop service from Alaska Airlines. With 14 weekly departures, this is a well served route.

SEA to IDA Flight Duration and Schedule

Nonstop flight time from SEA to IDA ranges from 1 hours 44 minutes to 1 hours 47 minutes. The route covers a distance of 565 miles (909 km). There are approximately 14 weekly flights outbound and 24 return, totaling 38 flights per week in both directions.

Connecting Options and Alternatives

7 one-stop connections are available, with the fastest taking approximately 8 hours via DAL. Two-stop connections are also available via intermediate hubs.