GEG to PHX flight delays
Spokane, WA (GEG) Phoenix, AZ (PHX) · 1,020 miles
1,235 flights · January 2025 – August 2026 · US Bureau of Transportation Statistics
84.13%
Arrived on time
Within 15 minutes of schedule
0.32%
Cancelled
Share of scheduled flights
79 min
When late, late by
Average across delayed arrivals
13 min
Delay per flight
Averaged over every flight flown
What the record says about this route
The shape of the lateness matters here. Flights on this route are not late often, but when they are late they are late by about 79 minutes — long enough to lose a connection or an evening. The on-time percentage looks reassuring and understates the consequence of being on the wrong flight.
The two directions do not behave alike. PHX to GEG arrives on time 8.6 points less often than the outbound. Delay accumulates through the flying day, so whichever direction is scheduled later tends to carry the worse record — which is an argument for booking the morning departure if the choice exists.
Flights from Spokane to Phoenix keep to schedule more reliably than most. On a route this punctual the day you fly matters more than the airline you pick.
The 2 airlines here are separated by under 4 points — close enough to call a tie. Choose on price and departure time.
Which airline should you fly on this route?
Over January 2025 – August 2026, Southwest Airlines arrived on time most often on GEG to PHX. American Airlines was late most often. Flights ran closest to schedule in September and worst in January.
Every airline on GEG to PHX
Ranked by how many flights each one operated. A carrier with fewer than 100 flights in the period is listed but not graded.
| Airline | Flights | On time | Cancelled | Avg delay | Grade |
|---|---|---|---|---|---|
| Southwest Airlines | 603 | 86.62% | 0.5% | 47 min | A |
| American Airlines | 577 | 83.36% | 0% | 109 min | B |
| Frontier Airlines | 45 | 63.64% | 2.22% | 64 min | — |
| Envoy Air | 10 | 70% | 0% | 38 min | — |
Month by month
Share of flights that arrived within 15 minutes of schedule, by month flown.
The return leg
PHX to GEG Phoenix back to Spokane 75.55% on time COther routes from Spokane
Common questions
Are flights from Spokane to Phoenix usually delayed?
84.13% of flights on the GEG to PHX route arrived within 15 minutes of schedule, so roughly 2 in every ten arrived late. That is better than the average route in this record.
Which airline is most on time from Spokane to Phoenix?
Southwest Airlines, at 86.62% on time across 603 flights. The least punctual on the route was American Airlines at 83.36%.
How often are GEG to PHX flights cancelled?
0.32% of scheduled flights did not operate — about 3 in every thousand. That is in the normal range.
What is the best month to fly Spokane to Phoenix?
September, when 92.2% of flights arrived on time. The worst was January at 75.8%.
When GEG to PHX flights are late, how late are they?
About 79 minutes on average across the flights that arrived more than 15 minutes behind schedule.
What these figures do and do not tell you
Everything on this page is counted from the flights that actually operated on GEG to PHX during January 2025 – August 2026, as reported by the airlines to the US Bureau of Transportation Statistics. "On time" is the federal definition: arriving at the gate within 15 minutes of the scheduled time.
A route's record is a description of the past, not a forecast. Weather, air traffic control and the aircraft's earlier flights that day drive most delays, and none of them are predictable from a historical rate. What the record does tell you is whether this route runs late more often than others, and which carrier on it has the better history — which is the part you can actually act on when you book.
Cancellations are counted separately from delays because they are a different problem for a traveller: a late flight still gets you there. How the grade is calculated →