Flights operate between St Louis (STL) and SeaTac (SEA).
1 airline operates this route with 1-2 flights daily flights.
Average flight time is 4h 15m - 4h 42m.
Route distance is 1714 miles (2758 km).
Route Distance
1714 miles (2758 km)
Average Duration
4h 15m - 4h 42m
Airlines Operating This Route
Alaska Airlines
Flight Frequency
Daily Flights
1-2 flights
Weekly Flights
11
Typical Departure Time Ranges
Earliest Departure
07:00
Latest Departure
16:15
Route Intelligence Dashboard
Overall Connectivity Score
60
GoodRoute Diversity
1
Direct Routes
Alaska Airlines serves 1 destination from STL
Weekly Frequency
14
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| STL → SeaTac (SEA) (SEA) | 14/week | 4h 15m - 4h 42m | 1,714 km | Moderate |
Flight Schedule & Filters
Alaska Airlines flights from Saint Louis (STL) to SeaTac (SEA)
Alaska Airlines operates scheduled nonstop flights between Saint Louis (STL) and SeaTac (SEA). Alaska Airlines operates 1-2 flights daily flights on this route.• Flight Duration: 4h 15m - 4h 42m (average flight time)• Distance: 1714 miles (2758 km) (air miles between airports)• Daily Flights: 1-2 flights (scheduled departures per day)
Saint Louis (STL)
US
SeaTac (SEA)
US
FLIGHT TIME
4h 15m - 4h 42m
FLIGHT DISTANCE
1714 miles (2758 km)
4h 38m - 4h 41m
07:00
16:15
1714 miles (2758 km)
January
1 (Show)
11
Alaska Airlines Terminal Information & Contact
Departure Terminal - Saint Louis (STL)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, St Louis, US
Arrival Terminal - SeaTac (SEA)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, Seattle, US
Alaska Airlines Flight Schedule from Saint Louis (STL) to SeaTac (SEA)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS473 |  Alaska Airlines | 07:00 | 09:41:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
AS388 | Alaska Airlines | 16:15 | 18:53:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
Alaska Airlines Monthly Flight Calendar
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Alaska Airlines Terminal Information
Departure Terminal at Saint Louis (STL):
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Arrival Terminal at SeaTac (SEA):
• Terminal : Alaska Airlines operates from this terminal
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Alaska Airlines Contact Information and Customer Services
Alaska Airlines Address
P.O. Box 68900
Seattle, WA 98168, USA
Customer Service Phone
+1 800 654 5669Official Website
alaskaair.com/Frequently Asked Questions
How many Alaska Airlines flights operate from St Louis (STL) to Seattle (SEA)?
Alaska Airlines operates 2 flights from St Louis (STL) to Seattle (SEA).
What city does Seattle (SEA) airport serve?
Seattle (SEA) airport serves SeaTac, US.
How long is the Alaska Airlines flight from St Louis (STL) to Seattle (SEA)?
The flight duration is approximately 4h 15m - 4h 42m.
What is the distance from St Louis (STL) to Seattle (SEA)?
The distance is 1714 miles (2758 km).
What aircraft does Alaska Airlines use on this route?
Alaska Airlines uses Boeing 737-900 (winglets) Passenger/BBJ3 on this route.
What are the earliest and latest Alaska Airlines flight departure times?
The earliest Alaska Airlines flight departs at 07:00 and the latest departs at 16:15.
Which terminal does Alaska Airlines use at St Louis (STL)?
Alaska Airlines flights from St Louis (STL) depart from Terminal 1. Terminal 1 phone: 1-800-252-7522.
View all Alaska Airlines flights to St Louis (STL) →
Popular Alaska Airlines routes from St Louis include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.