Drive or Fly: Renton, WA to Black Diamond, WA?
Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.
Driving wins
MediumNo scheduled commercial flights found for BFI–SEA. At 19 miles, driving is the only practical option.
Find Your Vehicle (EPA fuel economy data)
· · Fuel cost: $
Drive
Door to Door
35m
Distance
19.1 mi
Total Cost
$39
CO2
8 kg
Cost Breakdown
Fly
Door to Door
2h 38m
2m in the air
Air Distance
16 mi
Total Cost
$121
CO2
4 kg
Door-to-Door Timeline
Cost Breakdown
Airports
No scheduled flights found
No commercial flights between BFI and SEA. Flight estimates above are theoretical.
At a Glance
| Drive | Fly | |
|---|---|---|
| Door-to-door time | 35m | 2h 38m |
| Total cost (1 person) | $39 | $121 |
| Carbon footprint | 8 kg CO2 | 4 kg CO2 |
| Flexibility | High | Low |
| Luggage | Unlimited | Restricted |
| Reliability | Weather dependent | Data unavailable |
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.
via WA 169
via WA 516, WA 167
Decided to drive? See the full trip plan from Renton, WA to Black Diamond, WA with stops, fuel costs, and turn-by-turn directions.