BWI to SEA: Distance and Flight Time
The distance from Baltimore/Washington International Thurgood Marshall Airport (BWI) to Seattle–Tacoma International Airport (SEA) is 3,748 km (2,329 mi). A typical nonstop flight covers it in about 5h 10m, heading northwest. The distance is the same in either direction (SEA to BWI).
How far is it from Baltimore to Seattle?
The great-circle distance between Baltimore/Washington International Thurgood Marshall Airport (BWI) and Seattle–Tacoma International Airport (SEA) is 3,748 km (2,329 mi, 2,024 nautical miles). That is the straight-line distance; a real flight is a little longer because of air-traffic routing.
How long is the flight from BWI to SEA?
A nonstop flight typically takes about 5h 10m. This is an estimate from the distance; actual block times depend on the aircraft, winds and the exact routing. SEA is roughly northwest of BWI.
How is the BWI to SEA route written in code?
The pair is written BWI-SEA in IATA codes and KBWI-KSEA in ICAO codes, the form used on a flight plan. Baltimore/Washington International Thurgood Marshall Airport is BWI (KBWI), Seattle–Tacoma International Airport is SEA (KSEA).
| BWI | SEA | |
|---|---|---|
| Airport | Baltimore/Washington International Thurgood Marshall Airport | Seattle–Tacoma International Airport |
| ICAO code | KBWI | KSEA |
| Country | United States | United States |
| Elevation | 146 ft | 433 ft |
| Rank by connections | #107 | #67 |
Both ICAO codes start with K, the prefix ICAO assigns to the contiguous United States, so this is a route inside one ICAO region. How ICAO prefixes are laid out.
SEA sits 287 ft (87 m) higher than BWI, which is a real difference in air density on takeoff.
Airlines flying BWI to SEA
1 airline appear on this route in the open route dataset, 1 of them still listed as active. Each row gives the IATA code, the ICAO code and the radio callsign, which is what an air traffic controller hears:
| IATA | Airline | ICAO | Callsign | Status |
|---|---|---|---|---|
| WN | Southwest Airlines | SWA | Southwest | Active |
A further 1 carrier sell this pair as a codeshare without operating it: FL.
Route and carrier data comes from the OpenFlights open dataset, regenerated here on . It is a historical snapshot of scheduled connections, not a live schedule, and it includes codeshare listings, so some carriers shown may no longer operate the route or exist. How we build this · Data and sources.
Frequently asked questions
How far is Baltimore from Seattle?
Baltimore/Washington International Thurgood Marshall Airport (BWI) and Seattle–Tacoma International Airport (SEA) are 3,748 km (2,329 mi, 2,024 nautical miles) apart in a straight line.
How long is the flight from BWI to SEA?
A typical nonstop flight between BWI and SEA takes about 5h 10m. Actual times vary with aircraft type, winds and routing.
What direction is SEA from BWI?
Seattle–Tacoma International Airport (SEA) lies roughly northwest of Baltimore/Washington International Thurgood Marshall Airport (BWI).
Which airlines fly BWI to SEA?
1 airline appear on the BWI-SEA route in the open dataset, including Southwest Airlines.
Related routes
Other routes from Baltimore (BWI):
Other routes from Seattle (SEA):
BWI airport code · SEA airport code · Busiest airports worldwide