Seattle to Baltimore (SEA–BWI) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
SEA–BWI is served by 2 airlines with nonstop service. Alaska Airlines and Southwest Airlines lead the route. The flight covers 2,329 miles in approximately 5h 1m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| AS Alaska Airlines Also: AY, HA | 15 | 7M9 | 5h01-5h23 | Oneworld | AY, HA | |
| WN Southwest Airlines | 14 | 73H, B38M | 4h55-5h | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Baltimore from Seattle
| Metric | SEA→BWI | BFI→BWI |
|---|---|---|
| Distance from SEA | – | 5 mi |
| Nonstop airlines | 2 | 1 |
| Weekly flights | 29 | – |
| Flight time | 5h 1m | 5h 1m |
| Departure OTP | 48% | – |
Travel Essentials
SEA: PDT · BWI: EDT
When it's 6:00 PM in Seattle, it's 9:00 PM in Baltimore.
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.
SEA–BWI Quick Facts
Frequently Asked Questions
Flights from SEA to BWI
Seattle–Tacoma International Airport (SEA) and Baltimore/Washington International Thurgood Marshall Airport (BWI) are connected by nonstop service from Alaska Airlines and Southwest Airlines. With 29 weekly departures, this is a heavily served route.
SEA to BWI Flight Duration and Schedule
Nonstop flight time from SEA to BWI is about 5 hours 1 minutes gate to gate. The route covers a distance of 2,329 miles (3,748 km). There are approximately 29 weekly flights outbound and 32 return, totaling 61 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Minneapolis–Saint Paul, Chicago Midway and Portland. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Seattle (BFI).