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1,224 km · Domestic

Charleston (CHS) – Chicago O'Hare (ORD)

In July 2026, 363 flights operated between Charleston and Chicago O'Hare (both directions), and 83.5% 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
January156281▲ 80.1%
February210300▲ 42.9%
March301398▲ 32.2%
April294378▲ 28.6%
May314414▲ 31.8%
June335391▲ 16.7%
July334363▲ 8.7%
August267––
September290––
October353–in progress
November342––
December339––
Year to date (Jan–Jul)1,9442,525▲ 29.9%

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
January87.8%79.4%▼ 9.6%
February83.8%84.3%▲ 0.6%
March85.4%73.6%▼ 13.8%
April89.5%78.8%▼ 12.0%
May86.0%81.9%▼ 4.8%
June83.0%83.1%▲ 0.1%
July74.0%83.5%▲ 12.8%
August84.6%––
September86.6%––
October84.1%–in progress
November79.8%––
December79.6%––
Year-to-date average (Jan–Jul)84.2%80.7%▼ 4.2%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January139▼ 30.8%
February23▲ 50.0%
March121▲ 2,000.0%
April710▲ 42.9%
May02–
June213▲ 550.0%
July89▲ 12.5%
August10––
September0––
October0–in progress
November14––
December5––
Year to date (Jan–Jul)3367▲ 103.0%

Airlines on this route

  1. United Airlines 34.7%
  2. Envoy Air 27.0%
  3. Republic Airways 25.1%
  4. American Airlines 9.6%
  5. SkyWest Airlines 3.5%
  6. PSA Airlines 0.0%

Oct 1, 2024 – Jul 31, 2026

By direction

CHS → ORD

Scheduled flights
3,384
Flights operated
3,313
Cancelled
71 · 2.1%
On-time departures
84.8%

ORD → CHS

Scheduled flights
3,384
Flights operated
3,326
Cancelled
58 · 1.7%
On-time departures
81.1%

CHS → ORD and ORD → CHS counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 2,351 34.7% 84.2% 29
Envoy Air MQ 1,825 27.0% 80.4% 42
Republic Airways YX 1,701 25.1% 86.5% 41
American Airlines AA 651 9.6% 77.3% 11
SkyWest Airlines OO 238 3.5% 80.6% 6
PSA Airlines OH 2 0.0% 100.0% 0

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 delay07:00–08:001.8min · 716 recorded · 708 measured
Gap to highest-delay hour21.8min07:00 ↔ 19:00
Recorded flights6,768CHS–ORD

Departure hour

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
00:00 · Fewer than 200 measured departures · 1 recorded · 1 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 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 91.6% · 506 recorded · 501 measured · Source: the US BTS 07:00 · 92.1% · 716 recorded · 708 measured · Source: the US BTS 08:00 · 82.3% · 541 recorded · 531 measured · Source: the US BTS 09:00 · 88.9% · 275 recorded · 271 measured · Source: the US BTS 10:00 · 89.0% · 728 recorded · 718 measured · Source: the US BTS 11:00 · 88.6% · 557 recorded · 552 measured · Source: the US BTS 12:00 · 82.0% · 435 recorded · 428 measured · Source: the US BTS 13:00 · 77.8% · 374 recorded · 369 measured · Source: the US BTS 14:00 · 80.5% · 235 recorded · 231 measured · Source: the US BTS 15:00 · 80.2% · 283 recorded · 273 measured · Source: the US BTS 16:00 · 81.5% · 767 recorded · 752 measured · Source: the US BTS 17:00 · 78.4% · 209 recorded · 204 measured · Source: the US BTS 18:00 · 75.0% · 632 recorded · 620 measured · Source: the US BTS 19:00 · 61.8% · 236 recorded · 225 measured · Source: the US BTS 20:00 · 66.9% · 261 recorded · 245 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 4 recorded · 2 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 · Fewer than 200 measured departures · 1 recorded · 1 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 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 5.1 min · 506 recorded · 501 measured · Source: the US BTS 07:00 · 1.8 min · 716 recorded · 708 measured · Source: the US BTS 08:00 · 8.2 min · 541 recorded · 531 measured · Source: the US BTS 09:00 · 4.6 min · 275 recorded · 271 measured · Source: the US BTS 10:00 · 5.2 min · 728 recorded · 718 measured · Source: the US BTS 11:00 · 6.0 min · 557 recorded · 552 measured · Source: the US BTS 12:00 · 11.7 min · 435 recorded · 428 measured · Source: the US BTS 13:00 · 9.9 min · 374 recorded · 369 measured · Source: the US BTS 14:00 · 10.3 min · 235 recorded · 231 measured · Source: the US BTS 15:00 · 8.7 min · 283 recorded · 273 measured · Source: the US BTS 16:00 · 10.0 min · 767 recorded · 752 measured · Source: the US BTS 17:00 · 16.3 min · 209 recorded · 204 measured · Source: the US BTS 18:00 · 17.3 min · 632 recorded · 620 measured · Source: the US BTS 19:00 · 23.6 min · 236 recorded · 225 measured · Source: the US BTS 20:00 · 18.5 min · 261 recorded · 245 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 5 recorded · 5 measured · Source: the US BTS 22:00 · Fewer than 200 measured departures · 2 recorded · 2 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 4 recorded · 2 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 · 1 · 1 recorded · 1 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 · 1 · 1 recorded · 1 measured · Source: the US BTS 06:00 · 506 · 506 recorded · 501 measured · Source: the US BTS 07:00 · 716 · 716 recorded · 708 measured · Source: the US BTS 08:00 · 541 · 541 recorded · 531 measured · Source: the US BTS 09:00 · 275 · 275 recorded · 271 measured · Source: the US BTS 10:00 · 728 · 728 recorded · 718 measured · Source: the US BTS 11:00 · 557 · 557 recorded · 552 measured · Source: the US BTS 12:00 · 435 · 435 recorded · 428 measured · Source: the US BTS 13:00 · 374 · 374 recorded · 369 measured · Source: the US BTS 14:00 · 235 · 235 recorded · 231 measured · Source: the US BTS 15:00 · 283 · 283 recorded · 273 measured · Source: the US BTS 16:00 · 767 · 767 recorded · 752 measured · Source: the US BTS 17:00 · 209 · 209 recorded · 204 measured · Source: the US BTS 18:00 · 632 · 632 recorded · 620 measured · Source: the US BTS 19:00 · 236 · 236 recorded · 225 measured · Source: the US BTS 20:00 · 261 · 261 recorded · 245 measured · Source: the US BTS 21:00 · 5 · 5 recorded · 5 measured · Source: the US BTS 22:00 · 2 · 2 recorded · 2 measured · Source: the US BTS 23:00 · 4 · 4 recorded · 2 measured · Source: the US BTS

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View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—11
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—11
06:0091.6%5.1 min501506
07:0092.1%1.8 min708716
08:0082.3%8.2 min531541
09:0088.9%4.6 min271275
10:0089.0%5.2 min718728
11:0088.6%6.0 min552557
12:0082.0%11.7 min428435
13:0077.8%9.9 min369374
14:0080.5%10.3 min231235
15:0080.2%8.7 min273283
16:0081.5%10.0 min752767
17:0078.4%16.3 min204209
18:0075.0%17.3 min620632
19:0061.8%23.6 min225236
20:0066.9%18.5 min245261
21:00Fewer than 200 measured departures—55
22:00Fewer than 200 measured departures—22
23:00Fewer than 200 measured departures—24

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 83.7% · 1,014 recorded · 993 measured · Source: the US BTS Tuesday · 87.4% · 911 recorded · 897 measured · Source: the US BTS Wednesday · 83.4% · 925 recorded · 908 measured · Source: the US BTS Thursday · 84.2% · 985 recorded · 966 measured · Source: the US BTS Friday · 80.4% · 1,001 recorded · 988 measured · Source: the US BTS Saturday · 82.3% · 934 recorded · 917 measured · Source: the US BTS Sunday · 79.9% · 998 recorded · 970 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
Monday · 9.6 min · 1,014 recorded · 993 measured · Source: the US BTS Tuesday · 4.1 min · 911 recorded · 897 measured · Source: the US BTS Wednesday · 9.9 min · 925 recorded · 908 measured · Source: the US BTS Thursday · 8.3 min · 985 recorded · 966 measured · Source: the US BTS Friday · 11.1 min · 1,001 recorded · 988 measured · Source: the US BTS Saturday · 10.1 min · 934 recorded · 917 measured · Source: the US BTS Sunday · 11.3 min · 998 recorded · 970 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 · 1,014 · 1,014 recorded · 993 measured · Source: the US BTS Tuesday · 911 · 911 recorded · 897 measured · Source: the US BTS Wednesday · 925 · 925 recorded · 908 measured · Source: the US BTS Thursday · 985 · 985 recorded · 966 measured · Source: the US BTS Friday · 1,001 · 1,001 recorded · 988 measured · Source: the US BTS Saturday · 934 · 934 recorded · 917 measured · Source: the US BTS Sunday · 998 · 998 recorded · 970 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday83.7%9.6 min9931,014
Tuesday87.4%4.1 min897911
Wednesday83.4%9.9 min908925
Thursday84.2%8.3 min966985
Friday80.4%11.1 min9881,001
Saturday82.3%10.1 min917934
Sunday79.9%11.3 min970998

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 · 82.4% · 459 recorded · 437 measured · Source: the US BTS Feb · 84.1% · 515 recorded · 510 measured · Source: the US BTS Mar · 78.7% · 721 recorded · 699 measured · Source: the US BTS Apr · 83.5% · 689 recorded · 672 measured · Source: the US BTS May · 83.7% · 730 recorded · 728 measured · Source: the US BTS Jun · 83.1% · 741 recorded · 726 measured · Source: the US BTS Jul · 78.9% · 714 recorded · 697 measured · Source: the US BTS Aug · 84.6% · 277 recorded · 267 measured · Source: the US BTS Sep · 86.6% · 290 recorded · 290 measured · Source: the US BTS Oct · 86.7% · 505 recorded · 505 measured · Source: the US BTS Nov · 85.0% · 574 recorded · 560 measured · Source: the US BTS Dec · 83.2% · 553 recorded · 548 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 · 7.9 min · 459 recorded · 437 measured · Source: the US BTS Feb · 5.8 min · 515 recorded · 510 measured · Source: the US BTS Mar · 11.6 min · 721 recorded · 699 measured · Source: the US BTS Apr · 12.8 min · 689 recorded · 672 measured · Source: the US BTS May · 8.7 min · 730 recorded · 728 measured · Source: the US BTS Jun · 10.0 min · 741 recorded · 726 measured · Source: the US BTS Jul · 11.4 min · 714 recorded · 697 measured · Source: the US BTS Aug · 8.6 min · 277 recorded · 267 measured · Source: the US BTS Sep · 8.1 min · 290 recorded · 290 measured · Source: the US BTS Oct · 4.2 min · 505 recorded · 505 measured · Source: the US BTS Nov · 8.5 min · 574 recorded · 560 measured · Source: the US BTS Dec · 9.7 min · 553 recorded · 548 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 · 459 · 459 recorded · 437 measured · Source: the US BTS Feb · 515 · 515 recorded · 510 measured · Source: the US BTS Mar · 721 · 721 recorded · 699 measured · Source: the US BTS Apr · 689 · 689 recorded · 672 measured · Source: the US BTS May · 730 · 730 recorded · 728 measured · Source: the US BTS Jun · 741 · 741 recorded · 726 measured · Source: the US BTS Jul · 714 · 714 recorded · 697 measured · Source: the US BTS Aug · 277 · 277 recorded · 267 measured · Source: the US BTS Sep · 290 · 290 recorded · 290 measured · Source: the US BTS Oct · 505 · 505 recorded · 505 measured · Source: the US BTS Nov · 574 · 574 recorded · 560 measured · Source: the US BTS Dec · 553 · 553 recorded · 548 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan82.4%7.9 min437459
Feb84.1%5.8 min510515
Mar78.7%11.6 min699721
Apr83.5%12.8 min672689
May83.7%8.7 min728730
Jun83.1%10.0 min726741
Jul78.9%11.4 min697714
Aug84.6%8.6 min267277
Sep86.6%8.1 min290290
Oct86.7%4.2 min505505
Nov85.0%8.5 min560574
Dec83.2%9.7 min548553

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 81.4% 5,509
  • Delayed >15 min 16.7% 1,130
  • Cancelled 1.9% 129
  • 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

77
77 of 77
Flight numbersBy direction DeparturesOn time
UA2333 CHS → ORD 404 91.8%
UA592 CHS → ORD 383 90.0%
UA482 ORD → CHS 303 92.4%
UA312 ORD → CHS 174 66.5%
MQ3931 CHS → ORD 167 81.0%
UA2362 ORD → CHS 166 73.3%
YX3529 ORD → CHS 149 92.4%
MQ4219 ORD → CHS 148 88.2%
YX3584 ORD → CHS 104 89.3%
MQ3931 ORD → CHS 81 88.9%
YX3426 CHS → ORD 78 83.3%
YX3597 ORD → CHS 77 81.6%
YX3441 CHS → ORD 73 75.0%
AA2452 ORD → CHS 72 84.7%
AA2452 CHS → ORD 72 81.9%
AA3127 ORD → CHS 72 49.3%
MQ3454 CHS → ORD 72 83.6%
MQ3454 ORD → CHS 72 77.1%
UA2795 ORD → CHS 72 90.3%
YX3646 ORD → CHS 72 91.7%
YX3657 CHS → ORD 72 91.7%
AA3027 CHS → ORD 71 94.2%
YX3460 CHS → ORD 67 95.5%
MQ3508 CHS → ORD 62 88.5%
MQ4195 ORD → CHS 62 78.7%
MQ4229 CHS → ORD 61 95.1%
MQ3592 ORD → CHS 60 72.4%
MQ4228 ORD → CHS 59 49.1%
MQ3592 CHS → ORD 58 59.3%
YX3580 CHS → ORD 56 88.5%
MQ3551 ORD → CHS 54 75.0%
MQ4281 CHS → ORD 54 76.9%
YX3424 CHS → ORD 54 68.6%
UA1279 ORD → CHS 53 77.4%
MQ3528 ORD → CHS 52 78.4%
UA2075 ORD → CHS 52 86.5%
YX3517 ORD → CHS 51 94.1%
MQ3928 CHS → ORD 50 91.8%
UA1498 CHS → ORD 50 76.0%
MQ3528 CHS → ORD 48 89.6%
MQ4195 CHS → ORD 47 71.7%
UA659 CHS → ORD 47 82.6%
MQ3944 ORD → CHS 46 67.4%
AA2311 ORD → CHS 44 69.1%
YX4711 CHS → ORD 44 76.7%
YX4711 ORD → CHS 44 93.2%
AA2014 CHS → ORD 43 90.2%
YX4616 CHS → ORD 43 92.7%
UA1094 CHS → ORD 42 80.5%
YX4605 ORD → CHS 42 73.7%
AA2991 ORD → CHS 40 77.5%
AA2991 CHS → ORD 40 77.5%
UA1486 ORD → CHS 37 71.4%
UA1558 ORD → CHS 37 70.3%
UA1641 CHS → ORD 36 73.5%
UA617 ORD → CHS 36 80.6%
YX3416 CHS → ORD 36 68.6%
YX3481 CHS → ORD 36 88.2%
YX3641 ORD → CHS 36 91.2%
MQ3582 CHS → ORD 35 93.9%
YX3627 ORD → CHS 35 100.0%
YX4377 CHS → ORD 33 84.9%
YX4377 ORD → CHS 33 81.8%
MQ3888 ORD → CHS 32 74.2%
UA237 ORD → CHS 32 75.0%
UA247 ORD → CHS 32 81.3%
UA580 CHS → ORD 32 87.5%
YX3535 CHS → ORD 32 84.4%
YX3582 ORD → CHS 32 81.3%
MQ3346 ORD → CHS 31 96.8%
MQ3346 CHS → ORD 31 61.3%
MQ4068 ORD → CHS 31 77.4%
MQ4068 CHS → ORD 31 90.3%
UA1114 CHS → ORD 31 75.9%
UA1965 ORD → CHS 31 70.0%
UA528 CHS → ORD 31 87.1%
YX3405 CHS → ORD 31 100.0%

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 363 +8.7% 9 83.5%
June 2026 391 +16.7% 13 83.1%
May 2026 414 +31.8% 2 81.9%
April 2026 378 +28.6% 10 78.8%
March 2026 398 +32.2% 21 73.6%
February 2026 300 +42.9% 3 84.3%
January 2026 281 +80.1% 9 79.4%
December 2025 339 +62.2% 5 79.6%
November 2025 342 +56.9% 14 79.8%
October 2025 353 +132.2% 0 84.1%
September 2025 290 0 86.6%
August 2025 267 10 84.6%
July 2025 334 8 74.0%
June 2025 335 2 83.0%
May 2025 314 0 86.0%
April 2025 294 7 89.5%
March 2025 301 1 85.4%
February 2025 210 2 83.8%
January 2025 156 13 87.8%
December 2024 209 0 89.0%
November 2024 218 0 93.1%
October 2024 152 0 92.8%

How to read this chart

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