Drive or Fly: Killeen, TX to Brownsville, TX?

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 GRK–BRO. At 397 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

7h 23m

Distance

397.4 mi

Total Cost

$123

CO2

161 kg

Cost Breakdown

Diesel$88

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

3h 3m

43m in the air

Air Distance

361 mi

Total Cost

$189

CO2

92 kg

Door-to-Door Timeline

Killeen, TX → GRK 10m

Check-in & Security 90m

Flight 43m

Arrival & Baggage 30m

BRO → Brownsville, TX 10m

Cost Breakdown

Ticket (1 pax @ $134) $134

Rental car (1 day)$55

Airports

Killeen, TX GRK — Killeen Regional Airport / Robert Gray Army Airfield 7 mi, ~10m drive

Brownsville, TX BRO — Brownsville South Padre Island International Airport 5 mi, ~10m drive

No scheduled flights found

No commercial flights between GRK and BRO. Flight estimates above are theoretical.

+ Saves about 4h 20m 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 23m	3h 3m
Total cost (1 person)	$123	$189
Carbon footprint	161 kg CO₂	92 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 15, 2026.

Decided to drive? See the full trip plan from Killeen, TX to Brownsville, TX with stops, fuel costs, and turn-by-turn directions.