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Route · DTW → MDT · 2020–2025 BTS data

Detroit to Harrisburg

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), DTW to MDT (Detroit to Harrisburg) ranks #3058 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

85.7%
On-time
+6.7 pts
vs US avg
82 min
Delay when late
3,649
Flights
#3058 of 4927
Corpus placement

Cancelled

0.7%

Best Month

Oct 2025 92%

Worst Month

Jun 2024 67%

Distance

371 mi

Carriers

6

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 42 20 2 0 OO
Nov 2025 34 7 1 0 OO
Oct 2025 52 4 0 0 OO
May 2025 56 9 0 1 OO
Apr 2025 45 4 0 0 OO
Mar 2025 31 3 0 0 OO
Jan 2025 34 14 1 0 OO
Dec 2024 57 15 0 0 OO
Nov 2024 56 8 0 0 OO,DL
Oct 2024 57 6 0 0 OO
Sep 2024 51 9 0 1 OO
Aug 2024 54 17 0 0 OO
Jul 2024 54 16 0 0 OO
Jun 2024 52 17 0 0 9E,OO
May 2024 45 7 0 1 9E,OO
Apr 2024 30 3 0 0 9E,OO
Mar 2024 31 3 0 0 9E,OO
Jan 2024 31 8 2 0 9E,OO
Dec 2023 31 3 0 0 OO,9E
Nov 2023 30 8 0 0 9E,OO
Oct 2023 31 0 0 0 9E,OO
Sep 2023 58 12 0 0 9E,OO
Aug 2023 48 6 1 0 OO
Jul 2023 53 5 0 0 9E,OO

DTW–MDT seasonal on-time pattern

Best: September (89.8%) · weakest: January (79.3%)

75%80%85%90%95% JanFebMarAprMayJunJulAugSepOctNovDec 80.6%

Strongest calendar month

September

89.8% on-time · ~63 flights/mo

Busiest calendar month

February

~65 flights/mo avg

Weakest calendar month

January

79.3% on-time · ~54 flights/mo

Cancellation Rate

0.7%

7 of 1,063 flights

Diversion Rate

0.3%

3 of 1,063 flights

Explore origin & destination

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

DTW - Detroit

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

DTW on-time profile

MDT - Harrisburg

Full on-time, delay-cause, and seasonal performance for Harrisburg, PA.

MDT on-time profile

Compare the two airports

See DTW and MDT side by side on delays, cancellations, and reliability.

Compare DTW vs MDT

Origin-hub reliability standing

Among DTW's stronger departures

DTW → MDT posts a 85.7% on-time rate, landing in the ≥85% band with 34 of 94 BTS-tracked routes leaving Detroit. The same hub also shows 60 mid-band and 0 challenged departures · fleet-wide on-time rank #982 of 4927 (highest on-time = #1).

What the Data Says About DTW to MDT

Detroit to Harrisburg (DTW to MDT) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 85.7% on-time rate across 3,649 flights, with delays that do happen averaging 81.6 minutes. The corridor runs roughly 371 miles and is served by 6 carriers. Over the most recent 24 months, 7 of 1,063 flights were cancelled (0.7%) and 3 diverted (0.3%).

The monthly split is wide on this route: Oct 2025 posted the strongest performance at 92% on-time, while Jun 2024 came in at just 67% - a 25-point swing worth factoring into travel timing.

On the multi-year calendar, DTW–MDT peaks in September at 89.8% on-time while February carries the heaviest traffic (~65 flights per month) ; the softest month is January at 79.3%, a 10.5-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does DTW to MDT rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, DTW to MDT ranks #3058 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 DTW to MDT? ▼
Flights from Detroit to Harrisburg have a 85.7% on-time rate based on 3,649 flights. The average delay is 81.6 minutes. The best recent month was Oct 2025 with 92% on-time.
What is the cancellation rate for DTW to MDT? ▼
Over the last 24 months, 0.7% of flights on this route were cancelled (7 of 1,063 flights) and 0.3% were diverted.
How far is the flight from DTW to MDT? ▼
The flight distance from Detroit (DTW) to Harrisburg (MDT) is approximately 371 miles. This route is served by 6 carriers.
When is the best time to fly from DTW to MDT? ▼
The best recent month for on-time performance was Oct 2025 (92% on-time). The worst was Jun 2024 (67% on-time). Consider booking during months with historically better performance.

Airports on this route

DTW Airport

Detroit
MDT Airport

Harrisburg
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 DTW–MDT data

DTW–MDT runs 6.7 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare DTW and MDT airport profiles: delay causes and top routes differ even on the same corridor. DTW airport
  • If your dates flex, September (89.8% on-time) beats January (79.3%) on this corridor. Seasonal chart
  • 4 other routes post a similar 85.7% 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.

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.