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Route · BWI → DTW · 2020–2025 BTS data

Baltimore to Detroit

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), BWI to DTW (Baltimore to Detroit) ranks #898 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

82.9%
On-time
+3.9 pts
vs US avg
71 min
Delay when late
12,064
Flights
#898 of 4927
Corpus placement

Cancelled

1.0%

Best Month

Oct 2025 91%

Worst Month

Jan 2024 68%

Distance

409 mi

Carriers

29

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 165 47 5 0 DL,WN,F9
Nov 2025 160 24 2 0 DL,F9,WN
Oct 2025 231 21 0 0 WN,DL,F9,NK
Sep 2025 218 27 2 0 WN,DL,NK,F9
Aug 2025 227 35 0 0 WN,F9,NK,DL
Jul 2025 216 58 6 0 WN,YX,DL,F9,NK
Jun 2025 215 53 2 0 WN,DL,F9,NK
May 2025 209 43 1 0 NK,OO,WN,DL,F9
Apr 2025 165 32 2 1 DL,F9,WN
Mar 2025 171 34 0 0 DL,WN,F9
Feb 2025 146 24 1 0 DL,WN,F9
Jan 2025 164 30 2 0 DL,WN,F9
Dec 2024 167 29 0 0 DL,F9,WN
Nov 2024 179 19 0 0 WN,YX,DL,OO,F9
Oct 2024 196 20 1 0 OO,WN,DL,F9
Sep 2024 189 38 0 0 WN,DL,F9
Aug 2024 187 47 5 0 DL,F9,WN
Jul 2024 190 56 9 0 DL,F9,NK,WN
Jun 2024 175 53 0 0 DL,F9,WN
May 2024 172 50 3 0 DL,F9,WN
Apr 2024 162 29 0 0 DL,F9,WN
Mar 2024 155 28 0 0 DL,WN
Feb 2024 143 15 0 0 DL,WN
Jan 2024 151 49 3 0 DL,WN

BWI–DTW seasonal on-time pattern

Best: November (88.4%) · weakest: July (73.9%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 84.4%

Strongest calendar month

November

88.4% on-time · ~162 flights/mo

Busiest calendar month

August

~180 flights/mo avg

Weakest calendar month

July

73.9% on-time · ~172 flights/mo

Cancellation Rate

1.0%

44 of 4,353 flights

Diversion Rate

0.0%

1 of 4,353 flights

Origin-hub reliability standing

Mid-pack among BWI departures

From BWI, this corridor sits with 53 other 75–85% on-time routes out of 64 tracked departures, not the hub's reliability leaders (0 at ≥85%) and not the softest ( 11 below 75%). Destination: Detroit · fleet on-time rank #1971 of 4927.

What the Data Says About BWI to DTW

Bureau of Transportation Statistics records show Baltimore to Detroit (BWI to DTW) running a 82.9% on-time rate over 12,064 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 70.5 minutes. The 409-mile corridor is served by 29 carriers, and over the last 24 months 1.0% of 4,353 flights were cancelled, 0.0% diverted.

The monthly split is wide on this route: Oct 2025 posted the strongest performance at 91% on-time, while Jan 2024 came in at just 68% - a 23-point swing worth factoring into travel timing.

On the multi-year calendar, BWI–DTW peaks in November at 88.4% on-time while August carries the heaviest traffic (~180 flights per month) ; the softest month is July at 73.9%, a 14.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does BWI to DTW rank among US routes by traffic?
According to PlainFlights' route traffic ranking, BWI to DTW ranks #898 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 BWI to DTW?
Flights from Baltimore to Detroit have a 82.9% on-time rate based on 12,064 flights. The average delay is 70.5 minutes. The best recent month was Oct 2025 with 91% on-time.
What is the cancellation rate for BWI to DTW?
Over the last 24 months, 1.0% of flights on this route were cancelled (44 of 4,353 flights) and 0.0% were diverted.
How far is the flight from BWI to DTW?
The flight distance from Baltimore (BWI) to Detroit (DTW) is approximately 409 miles. This route is served by 29 carriers.
When is the best time to fly from BWI to DTW?
The best recent month for on-time performance was Oct 2025 (91% on-time). The worst was Jan 2024 (68% on-time). Consider booking during months with historically better performance.

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.

Using BWI–DTW data

BWI–DTW runs 3.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare BWI and DTW airport profiles: delay causes and top routes differ even on the same corridor. BWI airport
  • If your dates flex, November (88.4% on-time) beats July (73.9%) on this corridor. Seasonal chart
  • 4 other routes post a similar 82.9% 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.