Cheapest€49.11
- SkyWest SW570511:521h 1m12:53Spokane GEGBoise BOI
Door to door 4h 11mCO2 116.6 kgChanges 0Fixed, no changes
Spokane to Boise flight
Flights from Spokane to Boise start at €51.47 and take 4h 11m at their fastest.
The Flights from Spokane to Boise starts at €51.47 and takes 4h 11m door to door, run by 2 operators over 474 km, with around 6 departures a day. Fares bottom out about 60 days before departure.
- 4h 11mDoor to door
- 1h 1mMoving
- €51.47From
- 116.6 kgCO2
The cheapest and the fastest on September 28, 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 |
|---|---|
 SkyWest | €49.11 |
 Horizon Air | €52.06 |
The flight gets you into Boise. It does not get you a bed, and neither do we.
Rooms within reach of Boise Union Pacific Depot
Sort by distance from Boise Union Pacific Depot and you can see which places are ten minutes on foot and which are not.
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When to book Spokane to Boise
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €48.5290 days
- €37.9060 days
- €43.2145 days
- €45.5730 days
- €60.9121 days
- €66.8114 days
- €80.977 days
- €91.003 days
- €114.011 days
- Cheapest lead time
- Fares bottom out around 60 days ahead, at €37.90.
- How much it moves
- The gap between the cheapest and most expensive lead time is 201 percent. The most expensive point is €114.01, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 60 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.
- €59.73Sun
- €54.42Mon
- €56.78Tue
- €55.60Wed
- €66.81Thu
- €67.40Fri
- €66.81Sat
Where you leave from and where you arrive
The stations, airports and ports each mode on this corridor actually uses.
Spokane
Air
- GEG
Boise
Air
- BOI
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 474 km against 460 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 Spokane at 06:19 and the last at 17:28, across 6 departures. The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about Spokane to Boise
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 Spokane to Boise take?
The Flight from Spokane to Boise takes 4h 11m door to door, of which 1h 1m is spent moving. The route runs 474 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 Spokane to Boise cost?
The Flight from Spokane to Boise starts at €51.47 for one passenger, checked on September 28, 2026. A typical fare is €54.42. 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 Spokane to Boise?
2 operators run the Flight from Spokane to Boise: SkyWest, Horizon Air. Between them they file around 6 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 Spokane to Boise use?
The Flight from Spokane to Boise leaves from Spokane GEG and arrives at Boise BOI. 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 Spokane to Boise?
Fares for the Flight from Spokane to Boise bottom out around 60 days ahead, at €37.90. The gap between the cheapest and most expensive lead time across the window is 201 percent, measured on September 28, 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from Spokane to Boise produce?
The Flight from Spokane to Boise produces about 116.6 kg of CO2 per passenger over 474 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 Spokane to Boise on September 10, 2026: 474 km of route against 460 km in a straight line, 6 services a day, 2 operators, a cheapest fare of €51.47, and 4h 11m door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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