Drive or Fly: Silverdale, WA to Spokane Valley, WA?

Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.

Driving wins

Medium

No scheduled commercial flights found for BFI–GEG. At 338 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

6h 27m

Distance

338.1 mi

Total Cost

$110

CO2

137 kg

Cost Breakdown

Diesel$75

Hotel (1 room, 0 nights) $0

Meals (1 pax, 1 day) $35

+ No luggage restrictions or TSA lines

+ Comfortable one-day drive

+ Stop anywhere along the route

+ Have your own car at the destination

+ Likely faster door-to-door than flying

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 21m

30m in the air

Air Distance

254 mi

Total Cost

$185

CO2

65 kg

Door-to-Door Timeline

Silverdale, WA → BFI 30m

Check-in & Security 90m

Flight 30m

Arrival & Baggage 30m

GEG → Spokane Valley, WA 21m

Cost Breakdown

Ticket (1 pax @ $130) $130

Rental car (1 day)$55

Airports

Silverdale, WA BFI — King County International Airport - Boeing Field 20 mi, ~30m drive

Spokane Valley, WA GEG — Spokane International Airport 14 mi, ~21m drive

No scheduled flights found

No commercial flights between BFI and GEG. Flight estimates above are theoretical.

+ Saves about 3h 6m compared to driving

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− No scheduled commercial flights found for this route

− May need a rental car at destination

− Luggage fees and restrictions

− Less flexibility for stops along the way

Train

Amtrak

Door to Door

7h 42m on rail

Total Cost

$46

CO2

13 kg

Route

Empire Builder

Door-to-Door Timeline

Silverdale, WA → Seattle 26m

Boarding 30m

Train ride 462m

Arrival 10m

Spokane → Spokane Valley, WA 12m

Cost Breakdown

Ticket (1 pax @ $46) $46

Estimated based on distance. Check amtrak.com for current prices.

Stations

From Seattle 17 mi, ~26m drive

To Spokane 8 mi, ~12m drive

Service

Direct

Frequency

~2/week

+ Spacious seating with legroom and power outlets

+ Walk around freely during the trip

+ No driving fatigue — relax or work en route

+ Much lower carbon footprint than driving or flying

− Limited schedule — about 2 trips per week

− Amtrak delays can be unpredictable

− Need transportation to/from station

− Less flexibility than driving

At a Glance

	Drive	Fly	Train
Door-to-door time	6h 27m	3h 21m	9h
Total cost (1 person)	$110	$185	$46
Carbon footprint	137 kg CO₂	65 kg CO₂	13 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	Data unavailable

Drive data: OSRM routing, EIA fuel prices

Flight data: Statistical estimate

Airports: OurAirports

Transit: Amtrak GTFS — fares estimated

Confidence: Medium — airports identified, fares estimated

Costs are estimates. Actual flight prices vary by airline, date, and booking time. Drive costs based on OSRM routing, EIA fuel prices. Computed Apr 15, 2026.

Decided to drive? See the full trip plan from Silverdale, WA to Spokane Valley, WA with stops, fuel costs, and turn-by-turn directions.