Drive or Fly: Caldwell, ID to Bonners Ferry, ID?

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 BOI–GEG. At 500 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

9h 23m

Distance

500.8 mi

Total Cost

$146

CO2

202 kg

Cost Breakdown

Diesel$111

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

− Driver fatigue on longer stretches

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

5h 37m

42m in the air

Air Distance

348 mi

Total Cost

$189

CO2

89 kg

Door-to-Door Timeline

Caldwell, ID → BOI 36m

Check-in & Security 90m

Flight 42m

Arrival & Baggage 30m

GEG → Bonners Ferry, ID 139m

Cost Breakdown

Ticket (1 pax @ $134) $134

Rental car (1 day)$55

Airports

Caldwell, ID BOI — Boise Air Terminal/Gowen Field 24 mi, ~36m drive

Bonners Ferry, ID GEG — Spokane International Airport 93 mi, ~139m drive

No scheduled flights found

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

+ Saves about 3h 46m 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

At a Glance

	Drive	Fly
Door-to-door time	9h 23m	5h 37m
Total cost (1 person)	$146	$189
Carbon footprint	202 kg CO₂	89 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

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 17, 2026.

Route Options

2 different routes between these cities.

Fastest

500.8 mi 9h 22m

via I 84; US 20; US 26; US 30, US 395, US 95

Shortest (+5 min)

459.4 mi 9h 28m

via US 95, US 95; ID 6, US 95; US 2

Decided to drive? See the full trip plan from Caldwell, ID to Bonners Ferry, ID with stops, fuel costs, and turn-by-turn directions.