Cheapest€37.31
- Alpine Air Express AA509906:2750m07:17Billings BILButte BTM
Door to door 4hCO2 79.5 kgChanges 0Fixed, no changes
Billings to Butte flight
Flights from Billings to Butte start at €43.80 and take 4h at their fastest.
The Flights from Billings to Butte starts at €43.80 and takes 4h door to door, run by 1 operator over 323 km, with around 1 departure a day. Fares bottom out about 30 days before departure.
- 4hDoor to door
- 50mMoving
- €43.80From
- 79.5 kgCO2
The cheapest and the fastest on September 30, 2026
Two journeys we can sell today, with the service number each operator files them under.
Airlines
Speed, flexibility and what is on board. Nothing here is a rating, because we have not earned one.
| Operator | From | Fastest | Typical speed | Flexibility | On board |
|---|---|---|---|---|---|
 Alpine Air Express | €37.31 | 4h | 740 km/h | Fixed fare | Not published |
That is the traveling done. What happens after you walk out into Butte is not something we sell.
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When to book Billings to Butte
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €50.8890 days
- €33.1860 days
- €36.7245 days
- €31.4130 days
- €39.6721 days
- €49.1114 days
- €59.147 days
- €51.473 days
- €66.811 days
- Cheapest lead time
- Fares bottom out around 30 days ahead, at €31.41.
- How much it moves
- The gap between the cheapest and most expensive lead time is 113 percent. The most expensive point is €66.81, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 30 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €47.34Sun
- €45.57Mon
- €49.11Tue
- €50.29Wed
- €59.14Thu
- €56.19Fri
- €49.11Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Billings
Air
- BIL
Butte
Air
- BTM
What the journey actually looks like
Direct or connecting, how far the route really runs, and what happens when a connection is missed.
- How far it really runs
- The route covers 323 km against 313 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves Billings at 06:27 and the last at 06:27, across 1 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Billings to Butte
The questions people actually ask about this trip, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from Billings to Butte take?
The Flight from Billings to Butte takes 4h door to door, of which 50m is spent moving. The route runs 323 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from Billings to Butte cost?
The Flight from Billings to Butte starts at €43.80 for one passenger, checked on September 12, 2026. A typical fare is €37.31. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from Billings to Butte?
1 operators run the Flight from Billings to Butte: Alpine Air Express. Between them they file around 1 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from Billings to Butte use?
The Flight from Billings to Butte leaves from Billings BIL and arrives at Butte BTM. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from Billings to Butte?
Fares for the Flight from Billings to Butte bottom out around 30 days ahead, at €31.41. The gap between the cheapest and most expensive lead time across the window is 113 percent, measured on September 12, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Billings to Butte produce?
The Flight from Billings to Butte produces about 79.5 kg of CO2 per passenger over 323 km, which works out at roughly 246 grams per passenger kilometer. That figure is for the whole journey and for one traveler, not for the vehicle.
Where these numbers come from
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Schedules, seat counts and fares are generated by our own model until the supplier contracts are signed. Places, coordinates, operators, which operator serves which pair, and every distance are real. We would rather say that on every page than let a modeled number pass for a filed one.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for Billings to Butte on September 12, 2026: 323 km of route against 313 km in a straight line, 1 services a day, 1 operators, a cheapest fare of €43.80, and 4h door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.