Best way to travel between

Washington, D.C., DC
Seattle
Travel Modes
Price
Distance
Duration
CO2
flight
$267.0
3895.38 km
9h 19mins
420.7 kgs
 
drive
$350.0
4586.59 km
46h 57mins
587.08 kgs
 
bus
$454.0
5117.7 km
73h 39mins
153.53 kgs
 
train
$858.0
5670.14 km
108h 37mins
300.52 kgs
 
Tranport Distance Time(hrs) Cost(local) Cost(usd)
Flight 3895.38 km 9h 19mins 267 USD 267.0
Drive 4586.59 km 46h 57mins 350 USD 350.0
Bus 5117.7 km 73h 39mins 454 USD 454.0
Train 5670.14 km 108h 37mins 858 USD 858.0
Take Train from Washington DC Union Station to BWI Airport, MD
Time: 34mins Cost: 25 USD; $ 22.5 - 27.5 USD CO2 Emission: 2.62 kgs
Take Bus from BWI Marshall to BWI Marshall Airport
Time: 5mins Cost: 0 USD; $ 0.1 - 0.2 USD CO2 Emission: 0.11 kgs
Take Flight from BWI to SEA
Time: 5h 52mins Cost: 240 USD; $ 216.0 - 264.0 USD CO2 Emission: 412.78 kgs
Take Train from Sound Transit Light Rail u0026 Seatac Acs to Pioneer Square Tunnel Station - Bay A
Time: 34mins Cost: 2 USD; $ 1.8 - 2.2 USD CO2 Emission: 1.07 kgs
Source: Rome2rio

Mode of travel comparision chart

The best and cheapest way to get from Washington, D.C., DC and Seattle is to travel by air, which will cost about 267 USD or 240.30 USD.