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Route · GEG → DEN · 2020–2025 BTS data

Spokane to Denver

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GEG to DEN (Spokane to Denver) ranks #1057 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85%
On-time
+6 pts
vs US avg
72 min
Delay when late
10,835
Flights
#1057 of 4927
Corpus placement

Cancelled

0.7%

Best Month

Jan 2025 93%

Worst Month

May 2025 70%

Distance

836 mi

Carriers

19

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 174 29 0 2 WN,F9,UA,OO
Nov 2025 162 13 1 0 OO,UA,F9,WN
Oct 2025 164 22 0 0 OO,UA,WN,F9
Sep 2025 183 31 0 0 UA,WN,OO,F9
Aug 2025 188 42 1 2 OO,WN,F9,UA
Jul 2025 198 54 1 3 UA,WN,F9
Jun 2025 188 52 1 1 UA,WN,F9
May 2025 169 51 1 1 OO,UA,WN,F9
Apr 2025 156 30 0 1 OO,UA,WN
Mar 2025 147 21 0 1 OO,UA,WN
Feb 2025 134 28 0 0 OO,UA,WN
Jan 2025 149 10 0 0 OO,UA,WN
Dec 2024 161 17 0 0 OO,UA,WN
Nov 2024 149 20 1 0 OO,UA,WN
Oct 2024 156 12 0 0 UA,OO,WN
Sep 2024 180 19 0 0 WN,OO,UA
Aug 2024 186 25 2 1 WN,OO,UA
Jul 2024 184 26 8 0 UA,WN
Jun 2024 179 27 1 3 UA,WN
May 2024 162 21 1 0 UA,WN
Apr 2024 156 20 0 0 OO,UA,WN
Mar 2024 143 15 1 0 UA,WN
Feb 2024 120 23 1 0 UA,WN
Jan 2024 129 24 6 0 WN,UA

GEG–DEN seasonal on-time pattern

Best: November (90.0%) · weakest: June (80.0%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 81%

Strongest calendar month

November

90.0% on-time · ~137 flights/mo

Busiest calendar month

July

~191 flights/mo avg

Weakest calendar month

June

80.0% on-time · ~170 flights/mo

Cancellation Rate

0.7%

26 of 3,917 flights

Diversion Rate

0.4%

15 of 3,917 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

GEG - Spokane

Full on-time, delay-cause, and seasonal performance for Spokane, WA.

GEG on-time profile

DEN - Denver

Full on-time, delay-cause, and seasonal performance for Denver, CO.

DEN on-time profile

Compare the two airports

See GEG and DEN side by side on delays, cancellations, and reliability.

Compare GEG vs DEN

Origin-hub reliability standing

Among GEG's stronger departures

GEG → DEN posts a 85% on-time rate, landing in the ≥85% band with 12 of 18 BTS-tracked routes leaving Spokane. The same hub also shows 6 mid-band and 0 challenged departures · fleet-wide on-time rank #1212 of 4927 (highest on-time = #1).

What the Data Says About GEG to DEN

Spokane to Denver (GEG to DEN) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85% on-time rate across 10,835 flights, with delays that do happen averaging 71.8 minutes. The corridor runs roughly 836 miles and is served by 19 carriers. Over the most recent 24 months, 26 of 3,917 flights were cancelled (0.7%) and 15 diverted (0.4%).

The monthly split is wide on this route: Jan 2025 posted the strongest performance at 93% on-time, while May 2025 came in at just 70% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, GEG–DEN peaks in November at 90.0% on-time while July carries the heaviest traffic (~191 flights per month) ; the softest month is June at 80.0%, a 10.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does GEG to DEN rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, GEG to DEN ranks #1057 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from GEG to DEN? ▼
Flights from Spokane to Denver have a 85% on-time rate based on 10,835 flights. The average delay is 71.8 minutes. The best recent month was Jan 2025 with 93% on-time.
What is the cancellation rate for GEG to DEN? ▼
Over the last 24 months, 0.7% of flights on this route were cancelled (26 of 3,917 flights) and 0.4% were diverted.
How far is the flight from GEG to DEN? ▼
The flight distance from Spokane (GEG) to Denver (DEN) is approximately 836 miles. This route is served by 19 carriers.
When is the best time to fly from GEG to DEN? ▼
The best recent month for on-time performance was Jan 2025 (93% on-time). The worst was May 2025 (70% on-time). Consider booking during months with historically better performance.

Airports on this route

GEG Airport

Spokane
DEN Airport

Denver
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using GEG–DEN data

GEG–DEN runs 6 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare GEG and DEN airport profiles: delay causes and top routes differ even on the same corridor. GEG airport
  • If your dates flex, November (90.0% on-time) beats June (80.0%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.