Drive or Fly: Caldwell, ID to Rathdrum, 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 422 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

7h 53m

Distance

422.5 mi

Total Cost

$128

CO2

171 kg

Cost Breakdown

Diesel$93

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

− Driver fatigue on longer stretches

− Wear and tear on vehicle

− Fuel price fluctuations

Plan the drive

Fly

Door to Door

3h 59m

34m in the air

Air Distance

287 mi

Total Cost

$186

CO2

73 kg

Door-to-Door Timeline

Caldwell, ID → BOI 36m

Check-in & Security 90m

Flight 34m

Arrival & Baggage 30m

GEG → Rathdrum, ID 49m

Cost Breakdown

Ticket (1 pax @ $131) $131

Rental car (1 day)$55

Airports

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

Rathdrum, ID GEG — Spokane International Airport 33 mi, ~49m drive

No scheduled flights found

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

+ Saves about 3h 54m 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	7h 53m	3h 59m
Total cost (1 person)	$128	$186
Carbon footprint	171 kg CO₂	73 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

422.5 mi 7h 52m

via I 84; US 20; US 26; US 30, US 395, I 82; US 395

Shortest (+19 min)

396 mi 8h 11m

via US 95, US 95; ID 6, I 84; US 20; US 26; US 30

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