Drive or Fly: Sainte Genevieve, 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 BLV–STL. At 86 miles, driving is the only practical option.

Passengers:

Vehicle:

Find Your Vehicle (EPA fuel economy data)

Drive

Door to Door

1h 48m

Distance

86.4 mi

Total Cost

$54

CO2

35 kg

Cost Breakdown

Diesel$19

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 36m

8m in the air

Air Distance

67 mi

Total Cost

$123

CO2

17 kg

Door-to-Door Timeline

Sainte Genevieve, MO → BLV 61m

Check-in & Security 90m

Flight 8m

Arrival & Baggage 30m

STL → O'Fallon, MO 27m

Cost Breakdown

Ticket (1 pax @ $123) $123

Airports

Sainte Genevieve, MO BLV — Scott AFB/Midamerica Airport 41 mi, ~61m drive

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

No scheduled flights found

No commercial flights between BLV 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

− Luggage fees and restrictions

− Less flexibility for stops along the way

Bus

FlixBus

Door to Door

2h 26m

25m on road

Total Cost

CO2

1 kg

Route

Greyhound US1210

Door-to-Door Timeline

Sainte Genevieve, MO → St Louis Bus Station (SLD6) 68m

Boarding 15m

Bus ride 25m

Arrival 10m

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

Cost Breakdown

Ticket (1 pax @ $1) $1

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

Stations

From SLD6 — St Louis Bus Station 45 mi, ~68m 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	1h 48m	3h 36m	2h 26m
Total cost (1 person)	$54	$123	$1
Carbon footprint	35 kg CO₂	17 kg CO₂	1 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.

Route Options

2 different routes between these cities.

Fastest

86.4 mi 1h 47m

via I 55, I 270, I 70

Shortest (+2 min)

86 mi 1h 50m

via I 55, I 64; US 40; US 61, I 270

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