Drive or Fly: Mercedes, TX to Montopolis, TX?

Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.

Driving wins

Medium

Short enough to drive comfortably in a day. Airport overhead makes flying slower door-to-door. Available flights require a connection, adding time and cost.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

6h 4m

Distance

314.6 mi

Total Cost

$112

CO2

127 kg

Cost Breakdown

Diesel$77

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 10m

34m in the air

Air Distance

283 mi

Total Cost

$186

CO2

72 kg

Door-to-Door Timeline

Mercedes, TX → HRL 26m

Check-in & Security 90m

Flight 34m

Arrival & Baggage 30m

AUS → Montopolis, TX 10m

Cost Breakdown

Ticket (1 pax @ $131) $131

Rental car (1 day)$55

Airports

Mercedes, TX HRL — Valley International Airport 17 mi, ~26m drive

Montopolis, TX AUS — Austin Bergstrom International Airport 4 mi, ~10m drive

Flight Data

Service

Connecting only

On-Time

100.0%

+ Saves about 2h 54m compared to driving

+ Less physical fatigue

+ Predictable arrival time

− Airport security and check-in overhead

− May need a rental car at destination

− Luggage fees and restrictions

− Less flexibility for stops along the way

Bus

FlixBus

Door to Door

11h 10m

9h 45m on road

Total Cost

$31

CO2

18 kg

Door-to-Door Timeline

Mercedes, TX → Harlingen Bus Station (HGN6) 30m

Boarding 15m

Bus ride 585m

Arrival 10m

Austin Eastside Bus Plaza (AUS6) → Montopolis, TX 30m

Cost Breakdown

Ticket (1 pax @ $31) $31

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

Stations

From HGN6 — Harlingen Bus Station 0 mi, ~30m drive

To AUS6 — Austin Eastside Bus Plaza 0 mi, ~30m drive

Service

Direct

Frequency

~6/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 6 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	6h 4m	3h 10m	11h 10m
Total cost (1 person)	$112	$186	$31
Carbon footprint	127 kg CO₂	72 kg CO₂	18 kg CO₂
Flexibility	High	Low
Luggage	Unlimited	Restricted
Reliability	Weather dependent	100% on-time

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 Oct 19, 2026.

Route Options

2 different routes between these cities.

Fastest

314.6 mi 6h 3m

via I 69C; US 281, US 281, TX 72

Alternative (+0 min)

328.4 mi 6h 3m

via US 281, I 69C; US 281, I 35

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