Route · GRR → BWI · 2020–2025 BTS data
Grand Rapids to Baltimore
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), GRR to BWI (Grand Rapids to Baltimore) ranks #4155 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.8%
- On-time
- +2.8 pts
- vs US avg
- 59 min
- Delay when late
- 1,491
- Flights
- #4155 of 4927
- Corpus placement
Cancelled
0.6%
Best Month
Jul 2025 85%
Worst Month
Jul 2025 85%
Distance
528 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 31 | 5 | 0 | 0 | WN |
| Nov 2025 | 30 | 6 | 0 | 0 | WN |
| Oct 2025 | 31 | 6 | 0 | 0 | WN |
| Sep 2025 | 30 | 9 | 0 | 0 | WN |
| Aug 2025 | 33 | 8 | 0 | 0 | WN |
| Jul 2025 | 53 | 8 | 3 | 0 | WN |
| Jun 2025 | 48 | 10 | 0 | 0 | WN |
| May 2025 | 31 | 11 | 0 | 0 | WN |
| Apr 2025 | 30 | 1 | 0 | 0 | WN |
| Mar 2025 | 31 | 7 | 0 | 1 | WN |
| Jan 2025 | 31 | 8 | 0 | 0 | WN |
| Dec 2024 | 31 | 8 | 0 | 0 | WN |
| Nov 2024 | 30 | 4 | 0 | 0 | WN |
| Oct 2024 | 31 | 5 | 0 | 0 | WN |
| Sep 2024 | 30 | 7 | 0 | 0 | WN |
| Aug 2024 | 31 | 10 | 0 | 0 | WN |
| Jul 2024 | 31 | 6 | 0 | 0 | WN |
| Jun 2024 | 30 | 9 | 0 | 0 | WN |
| May 2024 | 31 | 8 | 0 | 0 | WN |
| Jan 2024 | 31 | 10 | 2 | 0 | WN |
| Dec 2023 | 31 | 3 | 0 | 0 | WN |
| Nov 2023 | 30 | 4 | 0 | 0 | WN |
| Oct 2023 | 36 | 6 | 0 | 0 | WN |
| Sep 2023 | 34 | 5 | 0 | 0 | WN |
GRR–BWI seasonal on-time pattern
Best: April (86.7%) · weakest: January (76.6%)
Strongest calendar month
April
86.7% on-time · ~30 flights/mo
Busiest calendar month
July
~42 flights/mo avg
Weakest calendar month
January
76.6% on-time · ~31 flights/mo
Cancellation Rate
0.6%
5 of 786 flights
Diversion Rate
0.1%
1 of 786 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 profileBWI - Baltimore
Full on-time, delay-cause, and seasonal performance for Baltimore, MD.
BWI on-time profileCompare the two airports
See GRR and BWI side by side on delays, cancellations, and reliability.
Compare GRR vs BWIOrigin-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: Baltimore · fleet on-time rank #2433 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to GRR–BWI.
Routes with a similar on-time rate
What the Data Says About GRR to BWI
1,491 tracked flights put the GRR to BWI pairing (Grand Rapids to Baltimore) at a 81.8% on-time rate, squarely in line with the wider network. Delays that do occur run 59.1 minutes on average. Across the 528-mile route and its 1 carrier, the trailing 24 months show 0.6% cancelled and 0.1% diverted (786 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–BWI peaks in April at 86.7% on-time while July carries the heaviest traffic (~42 flights per month) ; the softest month is January at 76.6%, a 10.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does GRR to BWI rank among US routes by traffic? ▼
How often are flights delayed from GRR to BWI? ▼
What is the cancellation rate for GRR to BWI? ▼
How far is the flight from GRR to BWI? ▼
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–BWI data
GRR–BWI is mid-pack at 81.8% on-time; month and carrier mix move more than the corridor headline.
- Compare GRR and BWI airport profiles: delay causes and top routes differ even on the same corridor. GRR airport
- If your dates flex, April (86.7% on-time) beats January (76.6%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.8% 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.
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.