Baltimore to Seattle (BWI–SEA) — 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.
BWI–SEA 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 45m. 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 | 14 | 739, 7M9 | 5h50-5h53 | Oneworld | AY, HA | |
| WN Southwest Airlines | 14 | 737, 73H, 7S7, B38M | 5h40-5h45 | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Seattle from Baltimore
| Metric | BWI→SEA | DCA→SEA | IAD→SEA |
|---|---|---|---|
| Distance from BWI | – | 30 mi | 45 mi |
| Nonstop airlines | 2 | 6 | 20 |
| Weekly flights | 32 | 32 | 164 |
| Flight time | 5h 45m | 5h 21m | 5h 36m |
| Departure OTP | 100% | – | – |
Travel Essentials
BWI: EDT · SEA: PDT
When it's 6:00 PM in Baltimore, it's 3:00 PM in Seattle.
Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.
Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.
Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.
BWI–SEA Quick Facts
Frequently Asked Questions
Flights from BWI to SEA
Baltimore/Washington International Thurgood Marshall Airport (BWI) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines and Southwest Airlines. With 32 weekly departures, this is a heavily served route.
BWI to SEA Flight Duration and Schedule
Nonstop flight time from BWI to SEA is about 5 hours 45 minutes gate to gate. The route covers a distance of 2,329 miles (3,748 km). There are approximately 32 weekly flights outbound and 28 return, totaling 60 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Pittsburgh, Minneapolis–Saint Paul and John Glenn Columbus. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Dulles (IAD) and Philadelphia (PHL).