Is there a direct flight?

Direct flights from BWI to SEA are rare; most involve a connection.

What is the best time to visit?

July and August offer the most sunshine and outdoor activities.

How far is the drive?

The drive is approximately 2,800 miles.

Is public transit good?

Yes, Seattle has an extensive bus and light rail network.

Not if you stay downtown, but a car is helpful for exploring nearby parks.

Boonsboro

Seattle

Flight Driving

Boonsboro to Seattle

Updated: 28 May 2026

The journey from Boonsboro to Seattle spans roughly 2,800 miles. Flying from BWI to Seattle-Tacoma International Airport (SEA) is the most practical method, typically involving one connection. If you prefer driving, the route primarily follows I-70 West to I-90 West, taking you through Chicago and across the northern plains. This route offers stunning views of the Cascade Mountains as you approach the Pacific Northwest. Expect a travel time of approximately 45 hours if driving non-stop.

Total Distance: 4,500 km driving distance; 3,800 km straight-line air distance.

Fastest Way

Flight from BWI to SEA takes about 7 hours including connection time.

Cheapest Way

Driving is cost-effective for families, while budget airlines offer competitive flight prices.

Compare Boonsboro to Seattle Routes

	Flight Connecting	Driving Direct
Duration	7 hours	45 hours
Avg Price	$400 - $700	$600 - $900
Operator	Alaska Airlines	Personal Vehicle
Route	BWI to SEA via hubs like Chicago or Denver.	I-70 W to I-90 W through Chicago, Minneapolis, and Billings.
Tip	Alaska Airlines offers frequent connections to the Pacific Northwest.	Prepare for heavy traffic near Chicago and potential mountain passes.

Travel Tips

Rain Gear
Always carry a waterproof jacket, as Seattle weather is unpredictable.
Public Transit
Use the Link Light Rail to get from the airport to downtown efficiently.
Coffee Culture
Visit local independent roasters to experience the city's famous coffee scene.
Booking
Book flights mid-week to find the lowest airfares.
Navigation
Use apps like Waze to navigate Seattle's complex one-way street system.

Safety Tips

Mountain Driving
Carry tire chains if traveling through mountain passes in winter.
Urban Awareness
Stay aware of your surroundings in downtown areas at night.
Vehicle Security
Do not leave valuables in your car when parked in city centers.
Emergency Prep
Keep a winter emergency kit in your car during the colder months.