Distance from SEA Airport to BWI Airport


2,804 mi


2 days 1 hour

Gas Cost

$205 - $399

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There are 2,328.91 miles from Seattle–Tacoma International Airport (SEA) to Baltimore–Washington International Airport (BWI) in southeast direction and 2,804 miles (4,512.60 kilometers) by car, following the I-90 and US-14 route.

SEA Airport and BWI Airport are 2 days 1 hour far apart, if you drive non-stop.

This is the fastest route from SEA Airport to BWI Airport. The halfway point is Oacoma, SD.

Please note the time difference between SEA Airport and BWI Airport is 3 hours. The current time in SEA Airport is 9:41 pm (Nov 22) and the current time in BWI Airport is 12:41 am (Nov 23).

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Gas Consumption and Emissions

A car with an MPG of will need 129.82 gallons of gas to cover the route between SEA Airport and BWI Airport.

The estimated cost of gas to go from SEA Airport to BWI Airport is $332.34.

During the route, an average car will release 2,543.45 pounds of CO2 to the atmosphere. Your carbon footprint is 0.91 pounds of CO2 per mile.

Halfway Point Between SEA Airport and BWI Airport

If you want to meet halfway between SEA Airport and BWI Airport or just make a stop in the middle of your trip, the exact coordinates of the halfway point of this route are 43.721142 and -99.43207, or 43º 43' 16.1112" N, 99º 25' 55.452" W. This location is 1,402.06 miles away from SEA Airport and BWI Airport and it would take approximately 1 day to reach the halfway point from both locations.

Closest City or Town to Halfway Point

The closest town to the halfway point is Oacoma, SD, situated 1396.35 miles from SEA Airport and 1408.4 miles from BWI Airport. It would take 23 hours 58 mins to go from SEA to Oacoma and 1 day 1 hour to go from BWI to Oacoma.

Major Cities Along the Route

Some major cities along the route include Billings, MT, Spokane, WA, Renton, WA, Kent, WA and Sioux Falls, SD.

Best Hotels In or Near BWI Airport

Do you have where to stay when you arrive to BWI Airport? Check out our hotel recommendations:

Lowest Price Rental Cars in SEA Airport

Planning on renting a car to go from SEA Airport to BWI Airport? Here there are some offers to rent a car in or near SEA Airport:


Small cars

From $14


Intermediate cars

From $18


Full-size cars

From $24



From $28



From $40

Compare rental car prices in Seattle–Tacoma International Airport »

Weather in SEA and BWI


Light rain throughout the week, with temperatures falling to 49°F on Monday.

Nov 22
Nov 23
Nov 24
Nov 25
Nov 26
Rain Rain Partly cloudy day Rain Partly cloudy day
63° 56° 58° 49° 51° 45° 52° 45° 53° 42°
100% Rain probability 100% Rain probability 83% Rain probability 99% Rain probability 98% Rain probability
8 177 degrees 13 215 degrees 9 192 degrees 4 117 degrees 6 182 degrees


Light rain today, with temperatures rising to 63°F next Wednesday.

Nov 22
Nov 23
Nov 24
Nov 25
Nov 26
Partly cloudy day Clear day Clear day Partly cloudy day Partly cloudy day
53° 36° 45° 30° 51° 32° 58° 38° 48° 37°
61% Rain probability 11% Rain probability 8% Rain probability 28% Rain probability 0% Rain probability
8 322 degrees 5 310 degrees 3 211 degrees 5 240 degrees 13 309 degrees

Distance conversions

Checkout the distance in miles, kilometers and nautical miles between SEA Airport and BWI Airport in this table:

Distance type Miles Kilometers Nautical miles
Straight line distance 2,328.91 mi 3.22 km 1.74 nautical mi
Driving distance 2,804 mi 3.22 km 1.74 nautical mi

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