Carrier route record
G4LAS→GEG
Allegiant Air · Las Vegas to Spokane
- Flights
- 105
- Period
- July 2025 to June 2026
- Share of route
- 12%
- Carriers
- 2
Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Allegiant Air.
Allegiant on LAS to GEG sits in the middle of the pack with a C+. About seven flights in ten arrive on time by the DOT's definition, 6 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 105 flights, with a median arrival 5 minutes early.
The national on-time rate over the same period is 77.6%, so Allegiant on LAS to GEG runs 6 points behind the country as a whole. Across a thousand flights that is about 55 extra late arrivals.
Key figures
On time
72.1%
Arrivals under 15 minutes late, of 104 completed flights
Avg delay
65 min
Across delayed arrivals only, not all flights
Cancelled
0.95%
National rate is 1.81%
Whole route
76.1%
Every carrier on LAS to GEG, 855 flights
These figures cover 105 flights between July 2025 and June 2026. Beyond the headline rate, 13.5% of arrivals land a full hour or more behind schedule. That is the number that wrecks a connection, and it is not visible in an on-time percentage alone.
Carrier by carrier
Allegiant against every carrier on LAS to GEG
Allegiant flew 105 of the 855 flights on LAS to GEG, about 12% of it. Its 72.1% on time is 4 points worse than the route as a whole, which runs 76.1%. Ranked by on-time rate it is last of two carriers on the route, where the range runs from Southwest at 76.7% to Allegiant at 72.1%.
Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 750 | 76.7% | 44 min | 0.53% | B+ |
| Allegiant Air (this page)thin sample | 105 | 72.1% | 65 min | 0.95% | C+ |
Departure window
When Allegiant runs best on this route
Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 105 flights.
There are not enough flights in each departure window to split Allegiant's LAS to GEG record by time of day without the percentages moving on noise. The headline rate of 72.1% is the reliable figure here.
Across the year
Allegiant on LAS to GEG through the year
Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 72.1% on time across 105 flights.
Split by quarter, Allegiant on LAS to GEG logged 26 flights in Jul–Sep 2025, 28 flights in Oct–Dec 2025, 25 flights in Jan–Mar 2026 and 26 flights in Apr–Jun 2026. Fewer than three of those quarters carried the 30 completed flights this site needs before printing a rate, so the 72.1% annual figure is the one to use.
Delay causes
Why Allegiant runs late on this route
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 1,874 reported delay minutes.
- 41%Carrier
- 33%National Airspace System
- 24%Late-arriving aircraft
- 1%Extreme weather
33% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 615 minutes out of 1,874, against a national NAS share of 21%. The split is drawn from 1,874 reported delay minutes.
The largest share of delay minutes, 41%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 775 of the 1,874 delay minutes reported here.
Cancellations sit at 0.95% against a national 1.81%, which is ordinary. Diversions add another 0.00%.
Connections and stage length
What a delay here costs
For anyone connecting, the number to weigh is not the on-time rate but the tail behind it. 13.5% of arrivals land a full hour or more behind schedule, against 8.1% nationally. A 45-minute layover does not survive that, and no amount of walking quickly changes it. Ninety minutes is the honest minimum here, and two hours if the onward flight is on a separate ticket.
The 806 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.
The return leg is a different operation and performs like one: it runs 60.6% on time across 105 flights, 11 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 11 points of difference.
One caution: this is a thin sample. 105 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking Allegiant on LAS to GEG
Put together: treat all of this as provisional. 105 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 72.1% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 104 completed flights over 12 months sit behind that.
Related
Where to go next
Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.