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954 km · Domestic

Harrisburg (MDT) – Chicago O'Hare (ORD)

In July 2026, 379 flights operated between Harrisburg and Chicago O'Hare (both directions), and 77.0% left on time, according to the US BTS.

Official · July 2026 according to the US BTS only airlines required to report on-time data to the US DOT

Flights per month

Only complete months are shown. A month appears once the source has published every day of it.

The most recent periods19 periods
PeriodFlights operated 2025Flights operated 2026Change vs last year
January112325▲ 190.2%
February143328▲ 129.4%
March116339▲ 192.2%
April277471▲ 70.0%
May269417▲ 55.0%
June289336▲ 16.3%
July252379▲ 50.4%
August248––
September258––
October341–in progress
November373––
December310––
Year to date (Jan–Jul)1,4582,595▲ 78.0%

On-time departures by month

Departures within 15 minutes of schedule.

The most recent periods19 periods
PeriodOn-time departures 2025On-time departures 2026Change vs last year
January81.3%75.1%▼ 7.6%
February76.9%79.3%▲ 3.1%
March78.4%69.6%▼ 11.2%
April88.4%75.4%▼ 14.7%
May83.6%83.5%▼ 0.1%
June74.7%74.7%0.0%
July66.7%77.0%▲ 15.4%
August82.3%––
September85.7%––
October78.6%–in progress
November83.4%––
December66.5%––
Year-to-date average (Jan–Jul)78.6%76.4%▼ 2.8%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January219▲ 850.0%
February16▲ 500.0%
March216▲ 700.0%
April216▲ 700.0%
May010–
June211▲ 450.0%
July619▲ 216.7%
August10––
September0––
October0–in progress
November19––
December11––
Year to date (Jan–Jul)1597▲ 546.7%

Airlines on this route

  1. United Airlines 29.1%
  2. Envoy Air 27.8%
  3. SkyWest Airlines 18.5%
  4. Republic Airways 16.0%
  5. American Airlines 8.6%

Oct 1, 2024 – Jul 31, 2026

By direction

MDT → ORD

Scheduled flights
3,069
Flights operated
2,994
Cancelled
75 · 2.4%
On-time departures
79.7%

ORD → MDT

Scheduled flights
3,070
Flights operated
2,993
Cancelled
77 · 2.5%
On-time departures
76.4%

MDT → ORD and ORD → MDT counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 1,788 29.1% 79.4% 36
Envoy Air MQ 1,708 27.8% 76.9% 40
SkyWest Airlines OO 1,134 18.5% 75.4% 30
Republic Airways YX 981 16.0% 85.6% 22
American Airlines AA 528 8.6% 68.7% 24

Shares are of scheduled flights in the period shown. Codeshare flights are counted once, under the operating airline.

Flight timing & delays

Historical departures, grouped by the scheduled local time at the departure airport. These are recorded outcomes, not a forecast for your flight.

Times are local to the departure airport of each flight; both directions are combined.

US domestic sectors recorded by BTS

Source: the US BTS · Oct 12, 2024 → Jul 31, 2026

Lowest average delay08:00–09:001.2min · 462 recorded · 460 measured
Gap to highest-delay hour44.3min08:00 ↔ 19:00
Recorded flights6,139MDT–ORD

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 150 recorded · 147 measured · Source: the US BTS 06:00 · 91.4% · 860 recorded · 845 measured · Source: the US BTS 07:00 · 82.0% · 343 recorded · 339 measured · Source: the US BTS 08:00 · 91.1% · 462 recorded · 460 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 83 recorded · 81 measured · Source: the US BTS 10:00 · 73.2% · 335 recorded · 328 measured · Source: the US BTS 11:00 · 78.3% · 390 recorded · 383 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 84 measured · Source: the US BTS 13:00 · 81.5% · 674 recorded · 659 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 159 recorded · 151 measured · Source: the US BTS 15:00 · 68.0% · 311 recorded · 306 measured · Source: the US BTS 16:00 · 73.1% · 216 recorded · 208 measured · Source: the US BTS 17:00 · 74.6% · 643 recorded · 627 measured · Source: the US BTS 18:00 · 71.8% · 705 recorded · 685 measured · Source: the US BTS 19:00 · 59.1% · 234 recorded · 225 measured · Source: the US BTS 20:00 · 63.4% · 361 recorded · 339 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 127 recorded · 120 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · Fewer than 200 measured departures · 150 recorded · 147 measured · Source: the US BTS 06:00 · 3.9 min · 860 recorded · 845 measured · Source: the US BTS 07:00 · 9.3 min · 343 recorded · 339 measured · Source: the US BTS 08:00 · 1.2 min · 462 recorded · 460 measured · Source: the US BTS 09:00 · Fewer than 200 measured departures · 83 recorded · 81 measured · Source: the US BTS 10:00 · 24.5 min · 335 recorded · 328 measured · Source: the US BTS 11:00 · 12.7 min · 390 recorded · 383 measured · Source: the US BTS 12:00 · Fewer than 200 measured departures · 86 recorded · 84 measured · Source: the US BTS 13:00 · 10.7 min · 674 recorded · 659 measured · Source: the US BTS 14:00 · Fewer than 200 measured departures · 159 recorded · 151 measured · Source: the US BTS 15:00 · 16.5 min · 311 recorded · 306 measured · Source: the US BTS 16:00 · 21.0 min · 216 recorded · 208 measured · Source: the US BTS 17:00 · 17.3 min · 643 recorded · 627 measured · Source: the US BTS 18:00 · 22.7 min · 705 recorded · 685 measured · Source: the US BTS 19:00 · 45.5 min · 234 recorded · 225 measured · Source: the US BTS 20:00 · 29.9 min · 361 recorded · 339 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 127 recorded · 120 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 01:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 02:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 03:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 04:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 05:00 · 150 · 150 recorded · 147 measured · Source: the US BTS 06:00 · 860 · 860 recorded · 845 measured · Source: the US BTS 07:00 · 343 · 343 recorded · 339 measured · Source: the US BTS 08:00 · 462 · 462 recorded · 460 measured · Source: the US BTS 09:00 · 83 · 83 recorded · 81 measured · Source: the US BTS 10:00 · 335 · 335 recorded · 328 measured · Source: the US BTS 11:00 · 390 · 390 recorded · 383 measured · Source: the US BTS 12:00 · 86 · 86 recorded · 84 measured · Source: the US BTS 13:00 · 674 · 674 recorded · 659 measured · Source: the US BTS 14:00 · 159 · 159 recorded · 151 measured · Source: the US BTS 15:00 · 311 · 311 recorded · 306 measured · Source: the US BTS 16:00 · 216 · 216 recorded · 208 measured · Source: the US BTS 17:00 · 643 · 643 recorded · 627 measured · Source: the US BTS 18:00 · 705 · 705 recorded · 685 measured · Source: the US BTS 19:00 · 234 · 234 recorded · 225 measured · Source: the US BTS 20:00 · 361 · 361 recorded · 339 measured · Source: the US BTS 21:00 · 127 · 127 recorded · 120 measured · Source: the US BTS 22:00 · No observations · 0 recorded · 0 measured · Source: the US BTS 23:00 · No observations · 0 recorded · 0 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00No observations———
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—147150
06:0091.4%3.9 min845860
07:0082.0%9.3 min339343
08:0091.1%1.2 min460462
09:00Fewer than 200 measured departures—8183
10:0073.2%24.5 min328335
11:0078.3%12.7 min383390
12:00Fewer than 200 measured departures—8486
13:0081.5%10.7 min659674
14:00Fewer than 200 measured departures—151159
15:0068.0%16.5 min306311
16:0073.1%21.0 min208216
17:0074.6%17.3 min627643
18:0071.8%22.7 min685705
19:0059.1%45.5 min225234
20:0063.4%29.9 min339361
21:00Fewer than 200 measured departures—120127
22:00No observations———
23:00No observations———

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.1% · 916 recorded · 883 measured · Source: the US BTS Tuesday · 80.1% · 870 recorded · 863 measured · Source: the US BTS Wednesday · 80.8% · 855 recorded · 840 measured · Source: the US BTS Thursday · 78.2% · 896 recorded · 877 measured · Source: the US BTS Friday · 78.0% · 880 recorded · 862 measured · Source: the US BTS Saturday · 78.4% · 798 recorded · 782 measured · Source: the US BTS Sunday · 72.8% · 924 recorded · 880 measured · Source: the US BTS

Hover, tap or focus a point to see its value, sample and source.

Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Monday · 15.5 min · 916 recorded · 883 measured · Source: the US BTS Tuesday · 15.0 min · 870 recorded · 863 measured · Source: the US BTS Wednesday · 11.9 min · 855 recorded · 840 measured · Source: the US BTS Thursday · 15.8 min · 896 recorded · 877 measured · Source: the US BTS Friday · 15.9 min · 880 recorded · 862 measured · Source: the US BTS Saturday · 15.2 min · 798 recorded · 782 measured · Source: the US BTS Sunday · 21.3 min · 924 recorded · 880 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 916 · 916 recorded · 883 measured · Source: the US BTS Tuesday · 870 · 870 recorded · 863 measured · Source: the US BTS Wednesday · 855 · 855 recorded · 840 measured · Source: the US BTS Thursday · 896 · 896 recorded · 877 measured · Source: the US BTS Friday · 880 · 880 recorded · 862 measured · Source: the US BTS Saturday · 798 · 798 recorded · 782 measured · Source: the US BTS Sunday · 924 · 924 recorded · 880 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.1%15.5 min883916
Tuesday80.1%15.0 min863870
Wednesday80.8%11.9 min840855
Thursday78.2%15.8 min877896
Friday78.0%15.9 min862880
Saturday78.4%15.2 min782798
Sunday72.8%21.3 min880924

Month of year

Months combine the same calendar month across the years shown; this is a seasonal pattern, not a monthly time series.

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Jan · 76.7% · 458 recorded · 437 measured · Source: the US BTS Feb · 78.6% · 478 recorded · 471 measured · Source: the US BTS Mar · 71.9% · 473 recorded · 455 measured · Source: the US BTS Apr · 80.2% · 766 recorded · 748 measured · Source: the US BTS May · 83.5% · 696 recorded · 686 measured · Source: the US BTS Jun · 74.7% · 638 recorded · 625 measured · Source: the US BTS Jul · 72.9% · 656 recorded · 631 measured · Source: the US BTS Aug · 82.3% · 258 recorded · 248 measured · Source: the US BTS Sep · 85.7% · 258 recorded · 258 measured · Source: the US BTS Oct · 81.3% · 459 recorded · 459 measured · Source: the US BTS Nov · 83.1% · 550 recorded · 531 measured · Source: the US BTS Dec · 68.7% · 449 recorded · 438 measured · Source: the US BTS

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Average departure delay Partial coverage: only airlines that report on-time data to the US DOT
Jan · 14.8 min · 458 recorded · 437 measured · Source: the US BTS Feb · 12.8 min · 478 recorded · 471 measured · Source: the US BTS Mar · 30.4 min · 473 recorded · 455 measured · Source: the US BTS Apr · 16.7 min · 766 recorded · 748 measured · Source: the US BTS May · 8.2 min · 696 recorded · 686 measured · Source: the US BTS Jun · 18.8 min · 638 recorded · 625 measured · Source: the US BTS Jul · 22.8 min · 656 recorded · 631 measured · Source: the US BTS Aug · 8.6 min · 258 recorded · 248 measured · Source: the US BTS Sep · 8.7 min · 258 recorded · 258 measured · Source: the US BTS Oct · 9.1 min · 459 recorded · 459 measured · Source: the US BTS Nov · 8.8 min · 550 recorded · 531 measured · Source: the US BTS Dec · 25.1 min · 449 recorded · 438 measured · Source: the US BTS

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Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 458 · 458 recorded · 437 measured · Source: the US BTS Feb · 478 · 478 recorded · 471 measured · Source: the US BTS Mar · 473 · 473 recorded · 455 measured · Source: the US BTS Apr · 766 · 766 recorded · 748 measured · Source: the US BTS May · 696 · 696 recorded · 686 measured · Source: the US BTS Jun · 638 · 638 recorded · 625 measured · Source: the US BTS Jul · 656 · 656 recorded · 631 measured · Source: the US BTS Aug · 258 · 258 recorded · 248 measured · Source: the US BTS Sep · 258 · 258 recorded · 258 measured · Source: the US BTS Oct · 459 · 459 recorded · 459 measured · Source: the US BTS Nov · 550 · 550 recorded · 531 measured · Source: the US BTS Dec · 449 · 449 recorded · 438 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan76.7%14.8 min437458
Feb78.6%12.8 min471478
Mar71.9%30.4 min455473
Apr80.2%16.7 min748766
May83.5%8.2 min686696
Jun74.7%18.8 min625638
Jul72.9%22.8 min631656
Aug82.3%8.6 min248258
Sep85.7%8.7 min258258
Oct81.3%9.1 min459459
Nov83.1%8.8 min531550
Dec68.7%25.1 min438449

Delay and on-time rates need at least 200 measured departures per bucket. Smaller samples remain visible in the flight-count chart. An empty slot means no observations, not zero flights.

Recorded outcomes

  • On time 76.1% 4,672
  • Delayed >15 min 21.4% 1,315
  • Cancelled 2.5% 152
  • Missing departure time 0.0% 0

All recorded flights with a known scheduled local time, counted once. Missing actual times are shown separately.

On time means departing no more than 15 minutes after schedule. Cancelled flights and flights missing departure times are excluded from the on-time rate and average delay.

Flight numbers on this route

69
69 of 69
Flight numbersBy direction DeparturesOn time
UA2684 MDT → ORD 616 90.4%
UA714 ORD → MDT 337 76.1%
OO4781 MDT → ORD 154 79.2%
OO5581 ORD → MDT 154 89.4%
OO4700 ORD → MDT 143 84.9%
OO5478 MDT → ORD 125 75.2%
AA3243 MDT → ORD 116 73.9%
AA3243 ORD → MDT 116 64.0%
UA1746 ORD → MDT 72 74.3%
UA2860 MDT → ORD 72 60.9%
YX4640 ORD → MDT 72 82.6%
YX4746 ORD → MDT 72 91.7%
YX4746 MDT → ORD 72 84.3%
UA1557 ORD → MDT 71 68.7%
YX4651 MDT → ORD 71 98.6%
UA1583 ORD → MDT 66 61.5%
UA517 MDT → ORD 63 69.5%
UA564 ORD → MDT 63 84.8%
MQ3466 ORD → MDT 62 93.6%
MQ3470 MDT → ORD 62 86.9%
MQ3748 ORD → MDT 62 62.3%
UA1329 MDT → ORD 62 79.0%
MQ3437 MDT → ORD 61 90.2%
MQ3432 ORD → MDT 60 51.7%
MQ3719 MDT → ORD 60 44.8%
UA1262 ORD → MDT 53 78.9%
YX3442 ORD → MDT 52 76.5%
YX3671 MDT → ORD 52 84.6%
UA1342 MDT → ORD 50 77.6%
MQ3366 ORD → MDT 46 73.9%
AA2479 MDT → ORD 45 69.1%
AA2479 ORD → MDT 45 73.8%
AA1351 MDT → ORD 44 97.7%
AA1474 ORD → MDT 44 48.8%
YX4732 MDT → ORD 44 72.7%
YX4732 ORD → MDT 44 86.4%
MQ3384 ORD → MDT 39 73.0%
MQ3740 MDT → ORD 39 79.5%
MQ3741 ORD → MDT 39 89.7%
YX3501 ORD → MDT 39 83.8%
MQ3352 ORD → MDT 37 66.7%
MQ3354 MDT → ORD 37 60.0%
OO4798 ORD → MDT 37 85.7%
OO5568 MDT → ORD 37 64.7%
UA1307 ORD → MDT 37 78.4%
YX3455 MDT → ORD 37 74.3%
YX3478 MDT → ORD 37 86.5%
UA2184 ORD → MDT 36 67.7%
UA349 ORD → MDT 36 69.4%
YX3694 ORD → MDT 36 94.1%
MQ3390 MDT → ORD 35 97.1%
OO5345 MDT → ORD 35 74.3%
OO5357 ORD → MDT 35 80.0%
UA1761 ORD → MDT 35 37.1%
MQ3351 MDT → ORD 33 97.0%
MQ3368 ORD → MDT 33 90.9%
MQ3374 MDT → ORD 33 75.8%
MQ3343 ORD → MDT 32 66.7%
MQ3345 MDT → ORD 32 87.1%
MQ3408 MDT → ORD 31 67.7%
MQ4155 ORD → MDT 31 83.9%
MQ4155 MDT → ORD 31 87.1%
UA1044 MDT → ORD 31 96.7%
UA754 ORD → MDT 31 87.1%
YX3450 MDT → ORD 31 93.6%
YX3531 ORD → MDT 31 88.9%
MQ3389 MDT → ORD 30 96.6%
MQ3402 ORD → MDT 30 89.7%
YX3564 MDT → ORD 30 76.7%

Flight numbers are the codes sold on tickets. On shared flights one aircraft can carry several of them. Only numbers with at least 30 flights have a page.

Monthly figures
PeriodFlights operated Change vs last yearCancelled On-time departures
July 2026 379 +50.4% 19 77.0%
June 2026 336 +16.3% 11 74.7%
May 2026 417 +55.0% 10 83.5%
April 2026 471 +70.0% 16 75.4%
March 2026 339 +192.2% 16 69.6%
February 2026 328 +129.4% 6 79.3%
January 2026 325 +190.2% 19 75.1%
December 2025 310 +142.2% 11 66.5%
November 2025 373 +136.1% 19 83.4%
October 2025 341 +189.0% 0 78.6%
September 2025 258 0 85.7%
August 2025 248 10 82.3%
July 2025 252 6 66.7%
June 2025 289 2 74.7%
May 2025 269 0 83.6%
April 2025 277 2 88.4%
March 2025 116 2 78.4%
February 2025 143 1 76.9%
January 2025 112 2 81.3%
December 2024 128 0 74.2%
November 2024 158 0 82.3%
October 2024 118 0 89.0%

How to read this chart

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