San Francisco to Seattle Flights SFO → SEA

San Francisco International Airport → Seattle–Tacoma International Airport

🇺🇸 San Francisco, US → 🇺🇸 Seattle, US

The San Francisco to Seattle route connects San Francisco International Airport (SFO) in US with Seattle–Tacoma International Airport (SEA) in US. This short-haul flight covers approximately 708 miles (1139 km) with a typical flight time of 1h 39m. This route is served by 4 airlines: Alaska Airlines, Delta Air Lines, United and others. AirportRoutes has tracked 17 daily flights on this route.

Departure Airport

San Francisco International Airport

ICAO Code:
KSFO
IATA Code:
SFO
City:
🇺🇸 San Francisco
Country:
US
Elevation:
13 ft

Destination Airport

Seattle–Tacoma International Airport

ICAO Code:
KSEA
IATA Code:
SEA
City:
🇺🇸 Seattle
Country:
US
Elevation:
433 ft

4

Operators

17

Daily Flights

708

Miles

1h 39m

Flight Duration

Route Map

Great Circle
Flight route map from San Francisco to Seattle
Map data © Mapbox © OpenStreetMap contributors

Operating Airlines

Airline ICAO IATA
Alaska Airlines ASA AS
Delta Air Lines DAL DL
United UAL UA
SkyWest SKW OO

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 35 13%
Tuesday 39 15%
Wednesday 39 15%
Thursday 48 18%
Friday 31 12%
Saturday 40 15%
Sunday 34 13%

Pattern Analysis

17 Daily Flights:
ASA758 DAL2721 UAL1355 SKW3707 DAL976 UAL2019 UAL2462 SKW3991 ASA68 ASA591 ASA656 ASA1340 DAL2636 DAL2809 UAL1008 UAL2340 SKW3899
Data Points: 266
API observations used to build this analysis
Weekdays: 192 flights
Weekend: 74 flights
Business Route More active on weekdays

All Flight Routes

4 Routes
Note: This table shows aggregated route data by airline. Each airline may operate multiple daily flights at different times. See the "Spotted Departure Times" section below for all observed departure times.
Airline Flight Numbers Aircraft Type Typical Time Days Active Last Seen Status
ASA758 ASA68 ASA591 ASA656 ASA1340 B738 18:18 6:18 PM (Representative)
M T W T F S S
Feb 3, 2026 Active
DAL2721 DAL976 DAL2636 DAL2809 BCS3 06:00 6:00 AM (Representative)
M T W T F S S
Feb 2, 2026 Active
SkyWest
SKW / OO
SKW3707 SKW3991 SKW3899 E75L 18:30 6:30 PM (Representative)
M T W T F S S
Feb 1, 2026 Active
United
UAL / UA
UAL1355 UAL2019 UAL2462 UAL1008 UAL2340 B738 18:55 6:55 PM (Representative)
M T W T F S S
Jan 22, 2026 Active
Total Routes: 4
Active Routes: 4
Unique Airlines: 4
Aircraft Types: 4

Spotted Departure Times

Departure Time Operator ICAO IATA
06:00 6:00 AM Delta Air Lines DAL DL
18:18 6:18 PM Alaska Airlines ASA AS
18:30 6:30 PM SkyWest SKW OO
18:55 6:55 PM United UAL UA

Time Information

Times are shown in the departure airport's local timezone (KSFO - America/Los_Angeles).

Total Departure Times: 4
Time Range:
06:00 - 18:55
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.