Drive or Fly: San Antonio, TX to Castle Hills, 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–SAT. At 8 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

15m

Distance

8.5 mi

Total Cost

$37

CO2

3 kg

Cost Breakdown

Diesel$2

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

2h 23m

1m in the air

Air Distance

7 mi

Total Cost

$120

CO2

2 kg

Door-to-Door Timeline

San Antonio, TX → SAT 12m

Check-in & Security 90m

Flight 1m

Arrival & Baggage 30m

SAT → Castle Hills, TX 10m

Cost Breakdown

Ticket (1 pax @ $120) $120

Airports

San Antonio, TX SAT — San Antonio International Airport 8 mi, ~12m drive

Castle Hills, TX SAT — San Antonio International Airport 3 mi, ~10m drive

No scheduled flights found

No commercial flights between SAT and SAT. 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

− Luggage fees and restrictions

− Less flexibility for stops along the way

Bus

FlixBus

Door to Door

55m

10m on road

Total Cost

CO2

0 kg

Route

FlixBus 2230

Door-to-Door Timeline

San Antonio, TX → San Antonio Bus Station (SNT6) 10m

Boarding 15m

Bus ride 10m

Arrival 10m

San Antonio Pearl District (2SP) → Castle Hills, TX 10m

Cost Breakdown

Ticket (1 pax @ $0) $0

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

Stations

From SNT6 — San Antonio Bus Station 0 mi, ~10m drive

To 2SP — San Antonio Pearl District 6 mi, ~10m drive

Service

Direct

Frequency

~28/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

− Travel time longer than driving

− Need transportation to/from station

− Less flexibility than driving

At a Glance

	Drive	Fly	Bus
Door-to-door time	15m	2h 23m	55m
Total cost (1 person)	$37	$120	$0
Carbon footprint	3 kg CO₂	2 kg CO₂	0 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 16, 2026.

Route Options

2 different routes between these cities.

Fastest

8.5 mi 15m

via San Pedro Avenue

Alternative (+0 min)

11.2 mi 15m

via US 281

Decided to drive? See the full trip plan from San Antonio, TX to Castle Hills, TX with stops, fuel costs, and turn-by-turn directions.