Drive or Fly: Bellevue, WA to Auburn, 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–SEA. At 25 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

35m

Distance

25.8 mi

Total Cost

$41

CO2

10 kg

Cost Breakdown

Diesel$6

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 30m

3m in the air

Air Distance

21 mi

Total Cost

$121

CO2

5 kg

Door-to-Door Timeline

Bellevue, WA → BFI 11m

Check-in & Security 90m

Flight 3m

Arrival & Baggage 30m

SEA → Auburn, WA 16m

Cost Breakdown

Ticket (1 pax @ $121) $121

Airports

Bellevue, WA BFI — King County International Airport - Boeing Field 7 mi, ~11m drive

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

No scheduled flights found

No commercial flights between BFI and SEA. 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 49m

43m on rail

Total Cost

CO2

1 kg

Route

Coast Starlight

Door-to-Door Timeline

Bellevue, WA → Seattle 10m

Boarding 30m

Train ride 43m

Arrival 10m

Tacoma → Auburn, WA 16m

Cost Breakdown

Ticket (1 pax @ $5) $5

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

Stations

From Seattle 6 mi, ~10m drive

To Tacoma 10 mi, ~16m drive

Service

Direct

Frequency

~1/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 1 trips per week

− Amtrak delays can be unpredictable

− Need transportation to/from station

− Less flexibility than driving

Bus

FlixBus

Door to Door

1h 25m

35m on road

Total Cost

CO2

1 kg

Route

FlixBus 2110

Door-to-Door Timeline

Bellevue, WA → Seattle (6th Ave S & S Lane St) (1SE) 10m

Boarding 15m

Bus ride 35m

Arrival 10m

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

Cost Breakdown

Ticket (1 pax @ $1) $1

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

Stations

From 1SE — Seattle (6th Ave S & S Lane St) 6 mi, ~10m drive

To SAP6 — Seattle Tacoma Intl Airport 10 mi, ~15m 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	35m	2h 30m	1h 49m	1h 25m
Total cost (1 person)	$41	$121	$5	$1
Carbon footprint	10 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 13, 2026.

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