Drive or Fly: San Marcos, TX to Dallas, 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 AUS–DAL. At 225 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

Distance

225.2 mi

Total Cost

$85

CO2

91 kg

Cost Breakdown

Diesel$50

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 16m

25m in the air

Air Distance

211 mi

Total Cost

$183

CO2

54 kg

Door-to-Door Timeline

San Marcos, TX → AUS 41m

Check-in & Security 90m

Flight 25m

Arrival & Baggage 30m

DAL → Dallas, TX 10m

Cost Breakdown

Ticket (1 pax @ $128) $128

Rental car (1 day)$55

Airports

San Marcos, TX AUS — Austin Bergstrom International Airport 27 mi, ~41m drive

Dallas, TX DAL — Dallas Love Field 5 mi, ~10m drive

No scheduled flights found

No commercial flights between AUS and DAL. 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

Train

Amtrak

Door to Door

8h 1m

7h 1m on rail

Total Cost

$42

CO2

12 kg

Route

Texas Eagle

Door-to-Door Timeline

San Marcos, TX → San Marcos Amtrak 10m

Boarding 30m

Train ride 421m

Arrival 10m

Dallas → Dallas, TX 10m

Cost Breakdown

Ticket (1 pax @ $42) $42

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

Stations

From San Marcos Amtrak 0 mi, ~10m drive

To Dallas 0 mi, ~10m drive

Service

Direct

Frequency

~6/week

+ Spacious seating with legroom and power outlets

+ Walk around freely during the trip

+ No driving fatigue — relax or work en route

+ Much lower carbon footprint than driving or flying

− Limited schedule — about 6 trips per week

− Amtrak delays can be unpredictable

− Need transportation to/from station

− Less flexibility than driving

Bus

FlixBus

Door to Door

5h 28m

4h 43m on road

Total Cost

$23

CO2

12 kg

Route

FlixBus 2230

Door-to-Door Timeline

San Marcos, TX → San Marcos (CARTS) (SMT6) 10m

Boarding 15m

Bus ride 283m

Arrival 10m

Downtown Dallas / Deep Ellum (2DA) → Dallas, TX 10m

Cost Breakdown

Ticket (1 pax @ $23) $23

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

Stations

From SMT6 — San Marcos (CARTS) 0 mi, ~10m drive

To 2DA — Downtown Dallas / Deep Ellum 1 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	Train	Bus
Door-to-door time	4h	3h 16m	8h 1m	5h 28m
Total cost (1 person)	$85	$183	$42	$23
Carbon footprint	91 kg CO₂	54 kg CO₂	12 kg CO₂	12 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: Amtrak GTFS, 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 12, 2026.

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