Drive or Fly: Seguin, 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 SAT–BRO. At 303 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

5h 26m

Distance

303.1 mi

Total Cost

$102

CO2

122 kg

Cost Breakdown

Diesel$67

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 27m

31m in the air

Air Distance

255 mi

Total Cost

$185

CO2

65 kg

Door-to-Door Timeline

Seguin, TX → SAT 46m

Check-in & Security 90m

Flight 31m

Arrival & Baggage 30m

BRO → Brownsville, TX 10m

Cost Breakdown

Ticket (1 pax @ $130) $130

Rental car (1 day)$55

Airports

Seguin, TX SAT — San Antonio International Airport 31 mi, ~46m drive

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

No scheduled flights found

No commercial flights between SAT and BRO. 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

− May need a rental car at destination

− Luggage fees and restrictions

− Less flexibility for stops along the way

Bus

FlixBus

Door to Door

10h 53m

9h 46m on road

Total Cost

$30

CO2

16 kg

Route

FlixBus US1164

Door-to-Door Timeline

Seguin, TX → San Marcos (CARTS) (SMT6) 32m

Boarding 15m

Bus ride 586m

Arrival 10m

Brownsville Bus Station (BRN6) → Brownsville, TX 10m

Cost Breakdown

Ticket (1 pax @ $30) $30

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

Stations

From SMT6 — San Marcos (CARTS) 21 mi, ~32m drive

To BRN6 — Brownsville Bus Station 0 mi, ~10m 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	Bus
Door-to-door time	5h 26m	3h 27m	10h 53m
Total cost (1 person)	$102	$185	$30
Carbon footprint	122 kg CO₂	65 kg CO₂	16 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: 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 19, 2026.

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