Drive or Fly: Brentwood, MO to Saint Charles, 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 STL–STL. At 19 miles, driving is the only practical option.

Passengers:

Vehicle:

Drive

Door to Door

28m

Distance

19 mi

Total Cost

$39

CO2

8 kg

Cost Breakdown

Diesel$4

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 26m

2m in the air

Air Distance

14 mi

Total Cost

$121

CO2

3 kg

Door-to-Door Timeline

Brentwood, MO → STL 14m

Check-in & Security 90m

Flight 2m

Arrival & Baggage 30m

STL → Saint Charles, MO 10m

Cost Breakdown

Ticket (1 pax @ $121) $121

Airports

Brentwood, MO STL — St. Louis Lambert International Airport 9 mi, ~14m drive

Saint Charles, MO STL — St. Louis Lambert International Airport 7 mi, ~10m drive

No scheduled flights found

No commercial flights between STL 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

1h 12m

25m on road

Total Cost

CO2

1 kg

Route

Greyhound US1210

Door-to-Door Timeline

Brentwood, MO → St Louis Bus Station (SLD6) 12m

Boarding 15m

Bus ride 25m

Arrival 10m

Saint Louis (Lambert Field) (SOL6) → Saint Charles, MO 10m

Cost Breakdown

Ticket (1 pax @ $1) $1

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

Stations

From SLD6 — St Louis Bus Station 8 mi, ~12m drive

To SOL6 — Saint Louis (Lambert Field) 7 mi, ~10m 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	28m	2h 26m	1h 12m
Total cost (1 person)	$39	$121	$1
Carbon footprint	8 kg CO₂	3 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 12, 2026.

Decided to drive? See the full trip plan from Brentwood, MO to Saint Charles, MO with stops, fuel costs, and turn-by-turn directions.