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Route · DEN → GRR · 2020–2025 BTS data

Denver to Grand Rapids

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DEN to GRR (Denver to Grand Rapids) ranks #1786 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

75.9%
On-time
-3.1 pts
vs US avg
62 min
Delay when late
7,081
Flights
#1786 of 4927
Corpus placement

Cancelled

0.5%

Best Month

Oct 2024 91%

Worst Month

May 2025 54%

Distance

1,015 mi

Carriers

20

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 102 37 0 0 WN,F9,UA
Nov 2025 102 22 0 0 UA,F9,WN
Oct 2025 111 25 0 0 UA,WN,F9
Sep 2025 115 25 0 0 UA,WN,F9
Aug 2025 121 37 0 0 WN,F9,UA
Jul 2025 122 43 2 0 UA,WN,F9
Jun 2025 118 44 0 0 UA,WN,F9
May 2025 105 48 1 0 UA,WN,F9
Apr 2025 90 27 0 0 UA,WN
Mar 2025 93 20 0 1 UA,WN
Feb 2025 84 21 0 0 UA,WN
Jan 2025 96 22 0 0 UA,WN,F9
Dec 2024 101 17 0 1 F9,UA,WN
Nov 2024 107 19 1 0 UA,WN,F9
Oct 2024 119 11 0 0 UA,WN,F9
Sep 2024 120 17 0 1 WN,UA,F9
Aug 2024 123 25 0 1 F9,WN,UA
Jul 2024 119 33 0 0 F9,UA,WN
Jun 2024 120 31 0 0 F9,UA,WN
May 2024 115 31 0 0 F9,UA,WN
Apr 2024 109 22 0 0 F9,UA,WN
Mar 2024 108 27 2 0 F9,UA,WN
Feb 2024 87 32 0 1 UA,WN
Jan 2024 94 20 6 1 F9,WN,UA

DEN–GRR seasonal on-time pattern

Best: October (81.1%) · weakest: June (67.2%)

65%70%75%80%85% JanFebMarAprMayJunJulAugSepOctNovDec 75.9%

Strongest calendar month

October

81.1% on-time · ~113 flights/mo

Busiest calendar month

July

~121 flights/mo avg

Weakest calendar month

June

67.2% on-time · ~109 flights/mo

Cancellation Rate

0.5%

12 of 2,581 flights

Diversion Rate

0.2%

6 of 2,581 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

GRR - Grand Rapids

Full on-time, delay-cause, and seasonal performance for Grand Rapids, MI.

GRR on-time profile

Compare the two airports

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

Compare DEN vs GRR

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: Grand Rapids · fleet on-time rank #4319 of 4927.

What the Data Says About DEN to GRR

The Denver to Grand Rapids corridor (DEN to GRR) posts a 75.9% on-time rate on the lower edge of the average band, based on 7,081 tracked flights. Late flights run 61.8 minutes behind on average. 20 carriers cover the 1,015-mile route; over the last 24 months, 12 of 2,581 flights were cancelled (0.5%) and 0.2% diverted.

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 91% on-time, while May 2025 came in at just 54% - a 37-point swing worth factoring into travel timing.

On the multi-year calendar, DEN–GRR peaks in October at 81.1% on-time while July carries the heaviest traffic (~121 flights per month) ; the softest month is June at 67.2%, a 13.9-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DEN to GRR rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DEN to GRR ranks #1786 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 GRR? ▼
Flights from Denver to Grand Rapids have a 75.9% on-time rate based on 7,081 flights. The average delay is 61.8 minutes. The best recent month was Oct 2024 with 91% on-time.
What is the cancellation rate for DEN to GRR? ▼
Over the last 24 months, 0.5% of flights on this route were cancelled (12 of 2,581 flights) and 0.2% were diverted.
How far is the flight from DEN to GRR? ▼
The flight distance from Denver (DEN) to Grand Rapids (GRR) is approximately 1,015 miles. This route is served by 20 carriers.
When is the best time to fly from DEN to GRR? ▼
The best recent month for on-time performance was Oct 2024 (91% on-time). The worst was May 2025 (54% on-time). Consider booking during months with historically better performance.

Airports on this route

DEN Airport

Denver
GRR Airport

Grand Rapids
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–GRR data

DEN–GRR is mid-pack at 75.9% on-time; month and carrier mix move more than the corridor headline.

  • Compare DEN and GRR airport profiles: delay causes and top routes differ even on the same corridor. DEN airport
  • If your dates flex, October (81.1% on-time) beats June (67.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 75.9% 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.