Drive or Fly: Greenfield, MO to O'Fallon, MO?

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 SGF–STL. At 248 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

4h 58m

Distance

248 mi

Total Cost

$90

CO2

100 kg

Cost Breakdown

Diesel$55

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 32m

24m in the air

Air Distance

196 mi

Total Cost

$183

CO2

50 kg

Door-to-Door Timeline

Greenfield, MO → SGF 41m

Check-in & Security 90m

Flight 24m

Arrival & Baggage 30m

STL → O'Fallon, MO 27m

Cost Breakdown

Ticket (1 pax @ $128) $128

Rental car (1 day)$55

Airports

Greenfield, MO SGF — Springfield Branson National Airport 28 mi, ~41m drive

O'Fallon, MO STL — St. Louis Lambert International Airport 18 mi, ~27m drive

No scheduled flights found

No commercial flights between SGF and STL. 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

5h 18m

3h 35m on road

Total Cost

$21

CO2

11 kg

Route

Greyhound US1210

Door-to-Door Timeline

Greenfield, MO → Springfield CU Transit Center (SPR6) 50m

Boarding 15m

Bus ride 215m

Arrival 10m

Saint Louis (Lambert Field) (SOL6) → O'Fallon, MO 28m

Cost Breakdown

Ticket (1 pax @ $21) $21

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

Stations

From SPR6 — Springfield CU Transit Center 33 mi, ~50m drive

To SOL6 — Saint Louis (Lambert Field) 19 mi, ~28m drive

Service

Direct

Frequency

~8/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 8 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	4h 58m	3h 32m	5h 18m
Total cost (1 person)	$90	$183	$21
Carbon footprint	100 kg CO₂	50 kg CO₂	11 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 17, 2026.

Route Options

2 different routes between these cities.

Fastest

248 mi 4h 57m

via I 44, US 160, MO 100

Shortest (+18 min)

241.9 mi 5h 16m

via I 44, MO 32, MO 245

Decided to drive? See the full trip plan from Greenfield, MO to O'Fallon, MO with stops, fuel costs, and turn-by-turn directions.