🇺🇸 BWI
Baltimore
2332 mi
SEA 🇺🇸
Seattle

Baltimore to Seattle Flights

Baltimore/Washington International Thurgood Marshall Airport Seattle–Tacoma International Airport 2 airlines

Get Notified About Route Changes

Track up to 3 airports free. Weekly alerts when airlines add or remove routes.

Sign Up Free

The Baltimore to Seattle route connects Baltimore/Washington International Thurgood Marshall Airport (BWI) in US with Seattle–Tacoma International Airport (SEA) in US. This medium-haul flight covers approximately 2332 miles (3753 km) with a typical flight time of 4h 55m. This route is served by 2 airlines: ASA, Southwest. AirportRoutes has tracked 2 unique flight numbers on this route.

Search tickets for this route

Compare flight prices across hundreds of booking sites

Search BWI → SEA flights

Opens a live price search — just pick your dates

Departure Airport

Baltimore/Washington International Thurgood Marshall Airport

ICAO Code:
KBWI
IATA Code:
BWI
City:
🇺🇸 Baltimore
Country:
US
Elevation:
146 ft

Destination Airport

Seattle–Tacoma International Airport

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

2

Operators

2

Tracked Flights

2332

Miles

4h 55m

Flight Duration

Route Map

Operating Airlines

Airline ICAO IATA
Alaska Airlines ASA AS
Southwest SWA WN

Flight Schedule Pattern

Day Flights Observed Frequency Activity
Monday 0 0%
Tuesday 0 0%
Wednesday 3 30%
Thursday 6 60%
Friday 0 0%
Saturday 0 0%
Sunday 1 10%

Pattern Analysis

2 Tracked Flights:
Data Points: 10
API observations used to build this analysis
Weekdays: 9 flights
Weekend: 1 flights
Business Route More active on weekdays

All Flight Routes

2 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
B39M 07:48 7:48 AM (Representative)
M T W T F S S
Jun 15, 2026 Active
Southwest
SWA / WN
- B738 -
M T W T F S S
Jun 15, 2026 Active
Total Routes: 2
Active Routes: 2
Unique Airlines: 2
Aircraft Types: 2

Spotted Departure Times

Departure Time Operator ICAO IATA
07:48 7:48 AM Alaska Airlines ASA AS

Time Information

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

Total Departure Times: 1
Time Range:
07:48 - 07:48
These are typical departure times observed from actual flights. Times may vary by season and schedule changes.