Flights operate between Seattle (SEA) and Saint Louis (STL).
1 airline operates this route with 1-2 flights daily flights.
Average flight time is 3h 46m - 4h 11m.
Average Duration
3h 46m - 4h 11m
Airlines Operating This Route
Alaska Airlines
Flight Frequency
Daily Flights
1-2 flights
Weekly Flights
7
Typical Departure Time Ranges
Earliest Departure
09:27
Latest Departure
18:00
Route Intelligence Dashboard
Overall Connectivity Score
55
GoodRoute Diversity
1
Direct Routes
Alaska Airlines serves 1 destination from SEA
Weekly Frequency
7
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| SEA → Saint Louis (STL) (STL) | 7/week | 3h 46m - 4h 11m | N/A | Moderate |
Flight Schedule & Filters
Alaska Airlines flights from SeaTac (SEA) to Saint Louis (STL)
Alaska Airlines operates scheduled nonstop flights between SeaTac (SEA) and Saint Louis (STL). Alaska Airlines operates 1-2 flights daily flights on this route.• Flight Duration: 3h 46m - 4h 11m (average flight time)• Daily Flights: 1-2 flights (scheduled departures per day)
SeaTac (SEA)
US
Saint Louis (STL)
US
FLIGHT TIME
3h 46m - 4h 11m
3h 52m - 3h 54m
09:27
18:00
1 (Show)
7
Alaska Airlines Terminal Information & Contact
Departure Terminal - SeaTac (SEA)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, Seattle, US
Arrival Terminal - Saint Louis (STL)
Terminal: 1
Phone: 1-800-252-7522
Location: 1, St Louis, US
Alaska Airlines Flight Schedule from SeaTac (SEA) to Saint Louis (STL)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
AS388 |  Alaska Airlines | 09:27 | 15:19:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
AS472 | Alaska Airlines | 18:00 | 23:54:00 | Boeing 737-900 (winglets) Passenger/BBJ3 |
Alaska Airlines Monthly Flight Calendar
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Alaska Airlines Terminal Information
Departure Terminal at SeaTac (SEA):
• Terminal : Alaska Airlines operates from this terminal
Terminal 1:
• Alaska Airlines Terminal Phone: 1-800-252-7522
Arrival Terminal at Saint Louis (STL):
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 Seattle (SEA) to St Louis (STL)?
Alaska Airlines operates 2 flights from Seattle (SEA) to St Louis (STL).
What city does St Louis (STL) airport serve?
St Louis (STL) airport serves Saint Louis, US.
How long is the Alaska Airlines flight from Seattle (SEA) to St Louis (STL)?
The flight duration is approximately 3h 46m - 4h 11m.
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 09:27 and the latest departs at 18:00.
Which terminal does Alaska Airlines use at Seattle (SEA)?
Alaska Airlines flights from Seattle (SEA) depart from Terminal 1. Terminal 1 phone: 1-800-252-7522.
What is the Alaska Airlines terminal phone number at Seattle (SEA)?
The Alaska Airlines terminal phone number at Seattle (SEA) is 1-800-252-7522 (Terminal 1).
View all Alaska Airlines flights to Seattle (SEA) →
Popular Alaska Airlines routes from Seattle include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.