Route · GRR → IAH · 2020–2025 BTS data
Grand Rapids to Houston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GRR to IAH (Grand Rapids to Houston) ranks #4422 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.7%
- On-time
- +2.7 pts
- vs US avg
- 82 min
- Delay when late
- 1,109
- Flights
- #4422 of 4927
- Corpus placement
Cancelled
2.6%
Best Month
N/A
Worst Month
N/A
Distance
1,042 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2024 | 31 | 9 | 0 | 0 | OO |
| Nov 2024 | 30 | 4 | 0 | 0 | OO |
| Oct 2024 | 31 | 2 | 1 | 0 | OO |
| Sep 2024 | 30 | 3 | 0 | 0 | OO,UA |
| Aug 2024 | 31 | 7 | 0 | 0 | OO |
| Jul 2024 | 31 | 17 | 3 | 0 | OO |
| Jun 2024 | 30 | 14 | 1 | 1 | OO |
| May 2024 | 31 | 6 | 2 | 1 | OO,UA |
| Apr 2024 | 30 | 3 | 0 | 0 | UA |
| Mar 2024 | 31 | 4 | 0 | 0 | UA |
| Jan 2024 | 31 | 9 | 6 | 0 | OO,UA |
| Dec 2023 | 31 | 2 | 0 | 0 | UA |
| Nov 2023 | 30 | 5 | 0 | 0 | UA |
| Oct 2023 | 31 | 3 | 0 | 0 | OO,UA |
| Sep 2023 | 31 | 8 | 0 | 0 | UA |
| Aug 2023 | 31 | 7 | 1 | 0 | UA |
| Jul 2023 | 31 | 1 | 2 | 0 | UA |
| Jun 2023 | 30 | 5 | 2 | 0 | UA |
| May 2023 | 31 | 1 | 1 | 1 | UA |
| Apr 2023 | 30 | 8 | 0 | 0 | UA |
| Mar 2023 | 31 | 12 | 0 | 0 | UA |
| Oct 2022 | 31 | 2 | 0 | 0 | OO |
| Sep 2022 | 30 | 2 | 0 | 0 | OO,YV |
| Aug 2022 | 31 | 3 | 0 | 0 | YV |
GRR–IAH seasonal on-time pattern
Best: October (92.5%) · weakest: June (68.3%)
Strongest calendar month
October
92.5% on-time · ~31 flights/mo
Busiest calendar month
February
~44 flights/mo avg
Weakest calendar month
June
68.3% on-time · ~30 flights/mo
Cancellation Rate
2.6%
19 of 736 flights
Diversion Rate
0.4%
3 of 736 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
GRR - Grand Rapids
Full on-time, delay-cause, and seasonal performance for Grand Rapids, MI.
GRR on-time profileIAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileCompare the two airports
See GRR and IAH side by side on delays, cancellations, and reliability.
Compare GRR vs IAHOrigin-hub reliability standing
Mid-pack among GRR departures
From GRR, this corridor sits with 11 other 75–85% on-time routes out of 20 tracked departures, not the hub's reliability leaders (5 at ≥85%) and not the softest ( 4 below 75%). Destination: Houston · fleet on-time rank #2469 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to GRR–IAH.
Routes with a similar on-time rate
What the Data Says About GRR to IAH
1,109 tracked flights put the GRR to IAH pairing (Grand Rapids to Houston) at a 81.7% on-time rate, squarely in line with the wider network. Delays that do occur run 82.3 minutes on average. Across the 1,042-mile route and its 8 carriers, the trailing 24 months show 2.6% cancelled and 0.4% diverted (736 flights sampled).
Monthly performance data for this route did not show a clear best/worst split in the sample window; review the monthly table above for period-by-period detail.
On the multi-year calendar, GRR–IAH peaks in October at 92.5% on-time while February carries the heaviest traffic (~44 flights per month) ; the softest month is June at 68.3%, a 24.2-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does GRR to IAH rank among US routes by traffic? ▼
How often are flights delayed from GRR to IAH? ▼
What is the cancellation rate for GRR to IAH? ▼
How far is the flight from GRR to IAH? ▼
Airports on this route
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 GRR–IAH data
GRR–IAH is mid-pack at 81.7% on-time; month and carrier mix move more than the corridor headline.
- Compare GRR and IAH airport profiles: delay causes and top routes differ even on the same corridor. GRR airport
- If your dates flex, October (92.5% on-time) beats June (68.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.7% 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.
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.