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Route · DEN → GEG · 2020–2025 BTS data

Denver to Spokane

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to GEG (Denver to Spokane) ranks #1055 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

76.8%
On-time
-2.2 pts
vs US avg
59 min
Delay when late
10,861
Flights
#1055 of 4927
Corpus placement

Cancelled

0.6%

Best Month

Oct 2024 90%

Worst Month

Jul 2025 61%

Distance

836 mi

Carriers

20

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 175 55 0 0 WN,F9,UA,OO
Nov 2025 161 27 1 0 OO,UA,F9,WN
Oct 2025 164 32 0 1 OO,UA,WN,F9
Sep 2025 183 25 0 0 UA,WN,OO,F9
Aug 2025 187 50 1 0 OO,WN,F9,UA
Jul 2025 198 78 2 0 UA,WN,F9
Jun 2025 188 72 1 0 UA,WN,F9
May 2025 169 43 2 0 OO,UA,WN,F9
Apr 2025 156 41 0 1 OO,UA,WN
Mar 2025 147 33 0 0 OO,UA,WN
Feb 2025 134 50 0 1 OO,UA,WN
Jan 2025 149 39 0 0 OO,UA,WN
Dec 2024 161 26 0 1 OO,UA,WN
Nov 2024 149 26 1 0 OO,UA,WN
Oct 2024 156 15 0 0 UA,OO,WN
Sep 2024 180 20 0 0 WN,OO,UA
Aug 2024 186 52 1 0 WN,OO,UA
Jul 2024 184 63 5 0 UA,WN
Jun 2024 179 63 1 0 UA,WN
May 2024 162 53 1 0 UA,WN
Apr 2024 156 39 0 0 OO,UA,WN
Mar 2024 143 29 1 0 UA,WN
Feb 2024 120 36 1 0 UA,WN
Jan 2024 128 39 6 0 WN,UA

DEN–GEG seasonal on-time pattern

Best: September (87.1%) · weakest: July (67.6%)

65%70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 72.2%

Strongest calendar month

September

87.1% on-time · ~170 flights/mo

Busiest calendar month

July

~192 flights/mo avg

Weakest calendar month

July

67.6% on-time · ~192 flights/mo

Cancellation Rate

0.6%

24 of 3,915 flights

Diversion Rate

0.1%

4 of 3,915 flights

Explore origin & destination

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

DEN - Denver

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

DEN on-time profile

GEG - Spokane

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

GEG on-time profile

Compare the two airports

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

Compare DEN vs GEG

Origin-hub reliability standing

Mid-pack among DEN departures

From DEN, this corridor sits with 133 other 75–85% on-time routes out of 168 tracked departures, not the hub's reliability leaders (8 at ≥85%) and not the softest ( 27 below 75%). Destination: Spokane · fleet on-time rank #4130 of 4927.

What the Data Says About DEN to GEG

The Denver to Spokane corridor (DEN to GEG) posts a 76.8% on-time rate on the lower edge of the average band, based on 10,861 tracked flights. Late flights run 58.6 minutes behind on average. 20 carriers cover the 836-mile route; over the last 24 months, 24 of 3,915 flights were cancelled (0.6%) and 0.1% diverted.

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 90% on-time, while Jul 2025 came in at just 61% - a 30-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–GEG peaks in September at 87.1% on-time while July carries the heaviest traffic (~192 flights per month) ; the softest month is July at 67.6%, a 19.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to GEG rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to GEG ranks #1055 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 DEN to GEG? ▼
Flights from Denver to Spokane have a 76.8% on-time rate based on 10,861 flights. The average delay is 58.6 minutes. The best recent month was Oct 2024 with 90% on-time.
What is the cancellation rate for DEN to GEG? ▼
Over the last 24 months, 0.6% of flights on this route were cancelled (24 of 3,915 flights) and 0.1% were diverted.
How far is the flight from DEN to GEG? ▼
The flight distance from Denver (DEN) to Spokane (GEG) is approximately 836 miles. This route is served by 20 carriers.
When is the best time to fly from DEN to GEG? ▼
The best recent month for on-time performance was Oct 2024 (90% on-time). The worst was Jul 2025 (61% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
GEG Airport

Spokane
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 DEN–GEG data

DEN–GEG is mid-pack at 76.8% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and GEG airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, September (87.1% on-time) beats July (67.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 76.8% 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.