Drive or Fly: Billings, MT to Ronan, MT?
Side-by-side comparison of driving versus flying for this route. Costs, time, and trade-offs at a glance.
Driving wins
MediumNo scheduled commercial flights found for BIL–MSO. At 399 miles, driving is the only practical option.
Find Your Vehicle (EPA fuel economy data)
· · Fuel cost: $
Drive
Door to Door
6h 46m
Distance
399.1 mi
Total Cost
$123
CO2
161 kg
Cost Breakdown
Fly
Door to Door
3h 49m
35m in the air
Air Distance
292 mi
Total Cost
$187
CO2
74 kg
Door-to-Door Timeline
Cost Breakdown
Airports
No scheduled flights found
No commercial flights between BIL and MSO. Flight estimates above are theoretical.
At a Glance
| Drive | Fly | |
|---|---|---|
| Door-to-door time | 6h 46m | 3h 49m |
| Total cost (1 person) | $123 | $187 |
| Carbon footprint | 161 kg CO2 | 74 kg CO2 |
| Flexibility | High | Low |
| Luggage | Unlimited | Restricted |
| Reliability | Weather dependent | Data unavailable |
Costs are estimates. Actual flight prices vary by airline, date, and booking time. Drive costs based on OSRM routing, EIA fuel prices. Computed Apr 18, 2026.
Route Options
2 different routes between these cities.
via I 90, I 90; US 191, I 90; US 212
via US 12, US 12; US 191, US 93; MT 200
Decided to drive? See the full trip plan from Billings, MT to Ronan, MT with stops, fuel costs, and turn-by-turn directions.