Best time to fly out of Spokane (GEG)

The early-flight folk wisdom holds up at Spokane: departures in the Before 6am band left on time 94.4% of the time, against 78.5% in the 12–2pm band. These are historical odds, not forecasts. The records say what happened on this schedule over three years; they know nothing about tomorrow’s thunderstorm.

Data through June 2026 · Bureau of Transportation Statistics

On-time rate by hour and day

On this page, “on time” means a departure that pushed back less than 15 minutes behind its scheduled time — the Bureau of Transportation Statistics definition, and the one airlines are held to.

Share of departures that left on time, by hour band and day of week.
Departure time MonTueWedThuFriSatSun
Before 6am 95 95 97 95 94 93 93
6–8am 94 94 95 94 93 92 93
8–10am 90 91 89 88 86 90 87
10am–12pm 85 87 88 86 85 85 86
12–2pm 76 80 82 79 77 80 77
2–4pm 80 83 84 80 78 84 80
4–6pm 78 82 82 80 77 86 76
6–8pm 79 87 86 83 79 81 77
8–10pm
10pm–12am 84 81 82 81
fewer left on time more left on time

The steadiest stretch at GEG was Before 6am — 94.4% of departures left on time across 6,350 flights. The weakest was 12–2pm at 78.5%. 6–8am departures from GEG left on time 93.5% of the time across 11,465 flights; 6–8pm departures, 81.5% across 3,485. That is a gap of 12 points, and it is the whole case for the early flight.

The year at GEG

July was the hard month at GEG: 80.7% of departures left on time, across 4,922 flights. April was the easy one at 89%. Each month pools three years of that month, so a single bad week does not decide it.

Share of departures that left on time, by calendar month. Best month in green, worst in amber. The hairline sits at the overall rate, 85.6%.
Departure on-time share at GEG by calendar month
Month Share departures that left on time Flights
January 84.8% 3,929
February 86.9% 3,628
March 86.6% 4,302
April 89% 4,335
May 86.5% 4,589
June 81.7% 4,934
July 80.7% 4,922
August 83.7% 4,816
September 88.5% 4,668
October 88.6% 4,561
November 87.9% 4,354
December 83.5% 4,338

Airlines at GEG

Every airline with at least 100 departures from GEG, busiest first. These are that airline’s departures from this airport only — its record across the country sits on its own page.

Airline Left on time Typical delay Cancelled Departures
SkyWest Airlines 88.8% 72 min 0.5% 18,221
Southwest Airlines 82.9% 47 min 0.1% 11,087
Delta Air Lines 86.7% 82 min 0.8% 8,634
Alaska Airlines 85.4% 48 min 1% 7,698
American Airlines 79.5% 119 min 0.9% 4,081
United Airlines 86.2% 98 min 1% 2,738
Allegiant Air 69.8% 89 min 0.8% 724
Frontier Airlines 76.4% 53 min 0.5% 183

What delays out of GEG were put down to

Airlines file a reason with every arrival running 15 minutes late or more. Across 7,904 flights that departed GEG and ran 15 minutes late or more, the delay minutes break down with 36.9% put down to airline operations and 35.5% to late-arriving aircraft.

Late-arriving aircraft 35.5% Airline operations 36.9% Air traffic & airport volume 18.1% Severe weather 9.2% Security 0.3%
  • Late-arriving aircraft 35.5%
  • Airline operations 36.9%
  • Air traffic & airport volume 18.1%
  • Severe weather 9.2%
  • Security 0.3%

Late-arriving aircraft is the knock-on category: the plane came in late, so it went out late again. It is why a 7am problem in Newark is still a problem in Denver at dinnertime, and why it is usually the biggest slice on the bar.

If you are connecting through GEG

Of 53,382 scheduled arrivals into GEG, 79.3% reached the gate less than 15 minutes behind schedule. Of the 10,687 arrivals that ran late, 62.1% were no more than 45 minutes behind — which is the difference between a tight connection and a new boarding pass.

Work out a specific layover — pick the airport and the minutes you have, and the tool reads the same arrival records back as a share.

Busiest routes out of GEG

Ranked by flights, with the share that arrived on time at the far end. Where a route carries enough flights for a page of its own the chip goes there; otherwise it goes to the destination airport.

GEG in one number

Spokane (GEG)

Rank 73 of 363 US airports by departures. Steadiest stretch of the day: Before 6am. Hardest month: July.

July 2023–June 2026 · 53,057 departures flown

85.6% of departures left on time

Questions about GEG

What is the best time of day to fly out of Spokane?
Before 6am. Departures in that band left on time 94.4% of the time across 6,350 flights, July 2023 through June 2026 — the best of the ten bands in the day. The 12–2pm band was the weakest at 78.5%.
Is the early flight out of GEG really more reliable?
6–8am departures from GEG left on time 93.5% of the time across 11,465 flights; 6–8pm departures, 81.5% across 3,485. That is a gap of 12 points, and it is the whole case for the early flight.
What is the worst month to fly out of GEG?
July: 80.7% of the departures that flew left on time, with 4,922 scheduled. April was the other end of the year at 89%. Each figure pools three years of that calendar month.
Which airline is most on time at GEG?
SkyWest Airlines — 88.8% of its 18,221 departures from GEG left on time. Allegiant Air sat at the other end at 69.8% over 724 flights. Only airlines with at least 100 departures here are ranked.
How often are flights cancelled at GEG?
0.6% of scheduled departures were cancelled over July 2023 through June 2026. Cancellations are counted against everything scheduled, not against everything that flew — a rate that looks small still adds up to real people in a rebooking line.