Drive or Fly: Auburn, WA to Klahanie, 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 SEA–BFI. At 32 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

46m

Distance

32 mi

Total Cost

$42

CO2

13 kg

Cost Breakdown

Diesel$7

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

2h 40m

3m in the air

Air Distance

21 mi

Total Cost

$121

CO2

5 kg

Door-to-Door Timeline

Auburn, WA → SEA 16m

Check-in & Security 90m

Flight 3m

Arrival & Baggage 30m

BFI → Klahanie, WA 21m

Cost Breakdown

Ticket (1 pax @ $121) $121

Airports

Auburn, WA SEA — Seattle–Tacoma International Airport 10 mi, ~16m drive

Klahanie, WA BFI — King County International Airport - Boeing Field 14 mi, ~21m drive

No scheduled flights found

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

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− No scheduled commercial flights found for this route

− Luggage fees and restrictions

− Less flexibility for stops along the way

Train

Amtrak

Door to Door

1h 47m

31m on rail

Total Cost

CO2

1 kg

Route

Amtrak Cascades

Door-to-Door Timeline

Auburn, WA → Tacoma 16m

Boarding 30m

Train ride 31m

Arrival 10m

Tukwila Amtrak → Klahanie, WA 20m

Cost Breakdown

Ticket (1 pax @ $4) $4

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

Stations

From Tacoma 10 mi, ~16m drive

To Tukwila Amtrak 13 mi, ~20m drive

Service

Direct

Frequency

~6/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 6 trips per week

− Amtrak delays can be unpredictable

− Need transportation to/from station

− Less flexibility than driving

Bus

FlixBus

Door to Door

1h 22m

20m on road

Total Cost

CO2

1 kg

Route

FlixBus 2110

Door-to-Door Timeline

Auburn, WA → Seattle Tacoma Intl Airport (SAP6) 15m

Boarding 15m

Bus ride 20m

Arrival 10m

Seattle Bus Station (SEA6) → Klahanie, WA 22m

Cost Breakdown

Ticket (1 pax @ $1) $1

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

Stations

From SAP6 — Seattle Tacoma Intl Airport 10 mi, ~15m drive

To SEA6 — Seattle Bus Station 15 mi, ~22m drive

Service

Direct

Frequency

~7/week

+ Usually the cheapest option

+ Wi-Fi and power outlets on board

+ No driving fatigue — relax or work en route

+ Much lower carbon footprint than driving or flying

− Limited schedule — about 7 trips per week

− Travel time longer than driving

− Need transportation to/from station

− Less flexibility than driving

At a Glance

	Drive	Fly	Train	Bus
Door-to-door time	46m	2h 40m	1h 47m	1h 22m
Total cost (1 person)	$42	$121	$4	$1
Carbon footprint	13 kg CO₂	5 kg CO₂	1 kg CO₂	1 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, FlixBus 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 18, 2026.

Route Options

2 different routes between these cities.

Fastest

32 mi 45m

via WA 167, I 405, I 90

Shortest (+1 min)

27.4 mi 47m

via WA 18, Cedar Grove Road Southeast, WA 169

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