Direct (nonstop) flights from Seattle to Baltimore
2 airlines fly nonstop from Seattle Tacoma International (SEA) to Baltimore Washington International (BWI). It's 2,334 miles (3,756 km), about 5h 8m in the air. Operated by Alaska Airlines, Southwest Airlines.
Alaska Airlines
Southwest Airlines
Route data last updated: May 28, 2026
Airlines with non-stop flights
AS
Alaska Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Seattle to Baltimore with one stop · direct emits 394 kg CO₂ per passenger
Looking for the return flight?
BWI → SEA: Flights from Baltimore to SeattleOther direct flights from Seattle
Direct flights from Baltimore (BWI)
Frequently Asked Questions
How long is the direct flight from Seattle to Baltimore?
A nonstop flight from Seattle (SEA) to Baltimore (BWI) takes approximately 5 hours and 8 minutes. The distance is 2,334 miles (3,756 km).
Which airlines fly nonstop from Seattle to Baltimore?
2 airlines: Alaska Airlines, Southwest Airlines.
Is there a nonstop flight from Seattle to Baltimore?
Yes. 2 airlines: Alaska Airlines, Southwest Airlines.
How far is Seattle from Baltimore?
The flight distance from Seattle to Baltimore is 2,334 miles (3,756 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Los Angeles.
What type of aircraft flies from Seattle to Baltimore?
At 5h 8m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Seattle to Baltimore?
Roughly 394 kg CO2 per passenger one-way. That's about the same as driving 1,970 km.
Is the return flight from Baltimore to Seattle also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Seattle to Baltimore?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Seattle Tacoma International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.