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792 km · Domestic

Frederick W. Smith (MEM) – Chicago O'Hare (ORD)

In July 2026, 462 flights operated between Frederick W. Smith and Chicago O'Hare (both directions), and 73.8% 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
January229334▲ 45.9%
February271369▲ 36.2%
March352369▲ 4.8%
April329459▲ 39.5%
May415403▼ 2.9%
June421463▲ 10.0%
July414462▲ 11.6%
August430––
September372––
October401–in progress
November380––
December394––
Year to date (Jan–Jul)2,4312,859▲ 17.6%

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
January77.7%72.5%▼ 6.7%
February72.3%84.6%▲ 17.0%
March78.7%77.5%▼ 1.5%
April84.8%80.0%▼ 5.7%
May76.4%80.9%▲ 5.9%
June74.6%76.5%▲ 2.5%
July74.4%73.8%▼ 0.8%
August81.9%––
September89.0%––
October86.0%–in progress
November81.6%––
December71.1%––
Year-to-date average (Jan–Jul)77.0%78.0%▲ 1.3%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January637▲ 516.7%
February220.0%
March223▲ 1,050.0%
April519▲ 280.0%
May34▲ 33.3%
June119▲ 1,800.0%
July226▲ 1,200.0%
August11––
September1––
October1–in progress
November26––
December8––
Year to date (Jan–Jul)21130▲ 519.0%

Airlines on this route

  1. Envoy Air 36.8%
  2. SkyWest Airlines 30.7%
  3. Republic Airways 16.9%
  4. United Airlines 15.1%
  5. American Airlines 0.4%

Oct 1, 2024 – Jul 31, 2026

By direction

MEM → ORD

Scheduled flights
4,047
Flights operated
3,944
Cancelled
103 · 2.5%
On-time departures
81.0%

ORD → MEM

Scheduled flights
4,044
Flights operated
3,947
Cancelled
97 · 2.4%
On-time departures
77.3%

MEM → ORD and ORD → MEM counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Envoy Air MQ 2,980 36.8% 81.3% 69
SkyWest Airlines OO 2,487 30.7% 77.3% 43
Republic Airways YX 1,370 16.9% 80.4% 55
United Airlines UA 1,221 15.1% 77.5% 33
American Airlines AA 33 0.4% 36.4% 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 delay06:00–07:003.5min · 218 recorded · 211 measured
Gap to highest-delay hour28.8min06:00 ↔ 18:00
Recorded flights8,091MEM–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 · 56 recorded · 55 measured · Source: the US BTS 06:00 · 91.5% · 218 recorded · 211 measured · Source: the US BTS 07:00 · 91.0% · 1,045 recorded · 1,025 measured · Source: the US BTS 08:00 · 87.5% · 909 recorded · 902 measured · Source: the US BTS 09:00 · 82.7% · 607 recorded · 600 measured · Source: the US BTS 10:00 · 80.3% · 539 recorded · 534 measured · Source: the US BTS 11:00 · 84.8% · 363 recorded · 361 measured · Source: the US BTS 12:00 · 78.9% · 644 recorded · 636 measured · Source: the US BTS 13:00 · 79.6% · 212 recorded · 206 measured · Source: the US BTS 14:00 · 74.3% · 539 recorded · 529 measured · Source: the US BTS 15:00 · 72.1% · 694 recorded · 674 measured · Source: the US BTS 16:00 · 69.6% · 229 recorded · 214 measured · Source: the US BTS 17:00 · 75.1% · 383 recorded · 370 measured · Source: the US BTS 18:00 · 60.2% · 277 recorded · 256 measured · Source: the US BTS 19:00 · 72.5% · 379 recorded · 364 measured · Source: the US BTS 20:00 · 64.6% · 500 recorded · 488 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 130 recorded · 121 measured · Source: the US BTS 22:00 · 72.3% · 364 recorded · 343 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 2 recorded · 1 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 · 56 recorded · 55 measured · Source: the US BTS 06:00 · 3.5 min · 218 recorded · 211 measured · Source: the US BTS 07:00 · 5.1 min · 1,045 recorded · 1,025 measured · Source: the US BTS 08:00 · 5.9 min · 909 recorded · 902 measured · Source: the US BTS 09:00 · 10.1 min · 607 recorded · 600 measured · Source: the US BTS 10:00 · 10.5 min · 539 recorded · 534 measured · Source: the US BTS 11:00 · 9.7 min · 363 recorded · 361 measured · Source: the US BTS 12:00 · 11.6 min · 644 recorded · 636 measured · Source: the US BTS 13:00 · 8.2 min · 212 recorded · 206 measured · Source: the US BTS 14:00 · 22.7 min · 539 recorded · 529 measured · Source: the US BTS 15:00 · 17.6 min · 694 recorded · 674 measured · Source: the US BTS 16:00 · 27.8 min · 229 recorded · 214 measured · Source: the US BTS 17:00 · 16.5 min · 383 recorded · 370 measured · Source: the US BTS 18:00 · 32.3 min · 277 recorded · 256 measured · Source: the US BTS 19:00 · 19.8 min · 379 recorded · 364 measured · Source: the US BTS 20:00 · 27.3 min · 500 recorded · 488 measured · Source: the US BTS 21:00 · Fewer than 200 measured departures · 130 recorded · 121 measured · Source: the US BTS 22:00 · 19.1 min · 364 recorded · 343 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 2 recorded · 1 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 · 56 · 56 recorded · 55 measured · Source: the US BTS 06:00 · 218 · 218 recorded · 211 measured · Source: the US BTS 07:00 · 1,045 · 1,045 recorded · 1,025 measured · Source: the US BTS 08:00 · 909 · 909 recorded · 902 measured · Source: the US BTS 09:00 · 607 · 607 recorded · 600 measured · Source: the US BTS 10:00 · 539 · 539 recorded · 534 measured · Source: the US BTS 11:00 · 363 · 363 recorded · 361 measured · Source: the US BTS 12:00 · 644 · 644 recorded · 636 measured · Source: the US BTS 13:00 · 212 · 212 recorded · 206 measured · Source: the US BTS 14:00 · 539 · 539 recorded · 529 measured · Source: the US BTS 15:00 · 694 · 694 recorded · 674 measured · Source: the US BTS 16:00 · 229 · 229 recorded · 214 measured · Source: the US BTS 17:00 · 383 · 383 recorded · 370 measured · Source: the US BTS 18:00 · 277 · 277 recorded · 256 measured · Source: the US BTS 19:00 · 379 · 379 recorded · 364 measured · Source: the US BTS 20:00 · 500 · 500 recorded · 488 measured · Source: the US BTS 21:00 · 130 · 130 recorded · 121 measured · Source: the US BTS 22:00 · 364 · 364 recorded · 343 measured · Source: the US BTS 23:00 · 2 · 2 recorded · 1 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—5556
06:0091.5%3.5 min211218
07:0091.0%5.1 min1,0251,045
08:0087.5%5.9 min902909
09:0082.7%10.1 min600607
10:0080.3%10.5 min534539
11:0084.8%9.7 min361363
12:0078.9%11.6 min636644
13:0079.6%8.2 min206212
14:0074.3%22.7 min529539
15:0072.1%17.6 min674694
16:0069.6%27.8 min214229
17:0075.1%16.5 min370383
18:0060.2%32.3 min256277
19:0072.5%19.8 min364379
20:0064.6%27.3 min488500
21:00Fewer than 200 measured departures—121130
22:0072.3%19.1 min343364
23:00Fewer than 200 measured departures—12

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 78.6% · 1,197 recorded · 1,157 measured · Source: the US BTS Tuesday · 81.3% · 1,126 recorded · 1,110 measured · Source: the US BTS Wednesday · 81.5% · 1,120 recorded · 1,104 measured · Source: the US BTS Thursday · 80.5% · 1,176 recorded · 1,151 measured · Source: the US BTS Friday · 75.7% · 1,188 recorded · 1,153 measured · Source: the US BTS Saturday · 80.7% · 1,083 recorded · 1,051 measured · Source: the US BTS Sunday · 76.1% · 1,201 recorded · 1,165 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 · 15.1 min · 1,197 recorded · 1,157 measured · Source: the US BTS Tuesday · 11.4 min · 1,126 recorded · 1,110 measured · Source: the US BTS Wednesday · 13.7 min · 1,120 recorded · 1,104 measured · Source: the US BTS Thursday · 13.5 min · 1,176 recorded · 1,151 measured · Source: the US BTS Friday · 15.3 min · 1,188 recorded · 1,153 measured · Source: the US BTS Saturday · 11.3 min · 1,083 recorded · 1,051 measured · Source: the US BTS Sunday · 15.9 min · 1,201 recorded · 1,165 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 · 1,197 · 1,197 recorded · 1,157 measured · Source: the US BTS Tuesday · 1,126 · 1,126 recorded · 1,110 measured · Source: the US BTS Wednesday · 1,120 · 1,120 recorded · 1,104 measured · Source: the US BTS Thursday · 1,176 · 1,176 recorded · 1,151 measured · Source: the US BTS Friday · 1,188 · 1,188 recorded · 1,153 measured · Source: the US BTS Saturday · 1,083 · 1,083 recorded · 1,051 measured · Source: the US BTS Sunday · 1,201 · 1,201 recorded · 1,165 measured · Source: the US BTS

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View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday78.6%15.1 min1,1571,197
Tuesday81.3%11.4 min1,1101,126
Wednesday81.5%13.7 min1,1041,120
Thursday80.5%13.5 min1,1511,176
Friday75.7%15.3 min1,1531,188
Saturday80.7%11.3 min1,0511,083
Sunday76.1%15.9 min1,1651,201

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 · 74.6% · 606 recorded · 563 measured · Source: the US BTS Feb · 79.4% · 644 recorded · 640 measured · Source: the US BTS Mar · 78.1% · 746 recorded · 721 measured · Source: the US BTS Apr · 82.0% · 812 recorded · 788 measured · Source: the US BTS May · 78.6% · 825 recorded · 818 measured · Source: the US BTS Jun · 75.6% · 904 recorded · 884 measured · Source: the US BTS Jul · 74.1% · 904 recorded · 876 measured · Source: the US BTS Aug · 81.9% · 441 recorded · 430 measured · Source: the US BTS Sep · 89.0% · 373 recorded · 372 measured · Source: the US BTS Oct · 85.8% · 552 recorded · 551 measured · Source: the US BTS Nov · 84.5% · 666 recorded · 638 measured · Source: the US BTS Dec · 74.3% · 618 recorded · 610 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 · 15.0 min · 606 recorded · 563 measured · Source: the US BTS Feb · 10.7 min · 644 recorded · 640 measured · Source: the US BTS Mar · 15.9 min · 746 recorded · 721 measured · Source: the US BTS Apr · 12.7 min · 812 recorded · 788 measured · Source: the US BTS May · 15.2 min · 825 recorded · 818 measured · Source: the US BTS Jun · 20.5 min · 904 recorded · 884 measured · Source: the US BTS Jul · 17.1 min · 904 recorded · 876 measured · Source: the US BTS Aug · 11.9 min · 441 recorded · 430 measured · Source: the US BTS Sep · 5.0 min · 373 recorded · 372 measured · Source: the US BTS Oct · 4.8 min · 552 recorded · 551 measured · Source: the US BTS Nov · 8.2 min · 666 recorded · 638 measured · Source: the US BTS Dec · 19.2 min · 618 recorded · 610 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 · 606 · 606 recorded · 563 measured · Source: the US BTS Feb · 644 · 644 recorded · 640 measured · Source: the US BTS Mar · 746 · 746 recorded · 721 measured · Source: the US BTS Apr · 812 · 812 recorded · 788 measured · Source: the US BTS May · 825 · 825 recorded · 818 measured · Source: the US BTS Jun · 904 · 904 recorded · 884 measured · Source: the US BTS Jul · 904 · 904 recorded · 876 measured · Source: the US BTS Aug · 441 · 441 recorded · 430 measured · Source: the US BTS Sep · 373 · 373 recorded · 372 measured · Source: the US BTS Oct · 552 · 552 recorded · 551 measured · Source: the US BTS Nov · 666 · 666 recorded · 638 measured · Source: the US BTS Dec · 618 · 618 recorded · 610 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan74.6%15.0 min563606
Feb79.4%10.7 min640644
Mar78.1%15.9 min721746
Apr82.0%12.7 min788812
May78.6%15.2 min818825
Jun75.6%20.5 min884904
Jul74.1%17.1 min876904
Aug81.9%11.9 min430441
Sep89.0%5.0 min372373
Oct85.8%4.8 min551552
Nov84.5%8.2 min638666
Dec74.3%19.2 min610618

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 77.2% 6,245
  • Delayed >15 min 20.3% 1,646
  • Cancelled 2.5% 200
  • 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

78
78 of 78
Flight numbersBy direction DeparturesOn time
OO5593 ORD → MEM 489 85.6%
OO5672 MEM → ORD 393 86.1%
OO5780 MEM → ORD 350 75.9%
MQ3945 ORD → MEM 318 70.7%
UA1612 ORD → MEM 300 64.0%
OO5841 ORD → MEM 261 81.6%
UA2317 ORD → MEM 213 63.0%
UA1126 MEM → ORD 206 91.6%
MQ3758 MEM → ORD 166 93.3%
UA247 MEM → ORD 166 90.3%
MQ3926 ORD → MEM 162 80.8%
MQ3786 ORD → MEM 147 81.0%
MQ3926 MEM → ORD 139 74.8%
MQ3559 MEM → ORD 135 92.5%
OO5719 MEM → ORD 124 79.8%
OO5414 ORD → MEM 108 76.4%
YX4373 ORD → MEM 108 72.9%
YX4373 MEM → ORD 106 73.1%
OO5336 MEM → ORD 90 38.6%
MQ3742 ORD → MEM 85 75.0%
MQ3742 MEM → ORD 85 70.2%
MQ3946 MEM → ORD 83 74.0%
YX4647 ORD → MEM 72 75.0%
UA2617 MEM → ORD 70 90.0%
MQ3683 MEM → ORD 68 83.8%
MQ3683 ORD → MEM 68 95.6%
YX4457 MEM → ORD 68 60.7%
MQ3356 ORD → MEM 62 80.7%
MQ3356 MEM → ORD 62 69.4%
MQ4178 ORD → MEM 60 93.3%
MQ3675 MEM → ORD 58 63.0%
MQ3675 ORD → MEM 58 89.3%
MQ3833 MEM → ORD 58 77.6%
YX4404 MEM → ORD 56 94.6%
MQ3591 ORD → MEM 53 69.2%
MQ3833 ORD → MEM 53 88.7%
YX4383 MEM → ORD 52 66.7%
YX4583 ORD → MEM 52 70.6%
MQ3820 MEM → ORD 51 76.5%
UA1301 ORD → MEM 49 79.2%
MQ3716 MEM → ORD 45 80.0%
UA1775 MEM → ORD 44 90.9%
YX4467 MEM → ORD 44 92.9%
YX4651 ORD → MEM 44 81.4%
YX4703 ORD → MEM 43 76.9%
MQ4320 ORD → MEM 42 92.3%
YX4406 MEM → ORD 42 84.2%
MQ3959 MEM → ORD 41 95.0%
MQ3959 ORD → MEM 41 97.5%
MQ4279 MEM → ORD 41 97.6%
MQ3747 ORD → MEM 39 81.6%
MQ3747 MEM → ORD 39 79.0%
YX3672 ORD → MEM 39 92.3%
YX4435 ORD → MEM 39 72.2%
MQ3680 ORD → MEM 38 78.4%
YX4435 MEM → ORD 38 70.6%
OO4742 ORD → MEM 37 45.7%
OO5589 MEM → ORD 37 60.6%
OO5599 ORD → MEM 37 66.7%
UA2016 MEM → ORD 37 83.3%
YX3651 MEM → ORD 36 94.4%
YX4421 ORD → MEM 36 80.7%
MQ4063 MEM → ORD 34 64.3%
MQ4063 ORD → MEM 34 79.3%
MQ3706 MEM → ORD 33 90.9%
MQ3786 MEM → ORD 33 84.9%
UA343 MEM → ORD 32 93.6%
YX4651 MEM → ORD 32 87.5%
OO4987 ORD → MEM 31 67.7%
MQ3580 MEM → ORD 30 90.0%
MQ3679 MEM → ORD 30 93.3%
MQ3701 ORD → MEM 30 90.0%
OO4899 MEM → ORD 30 86.7%
OO4904 ORD → MEM 30 75.0%
OO6384 MEM → ORD 30 72.4%
YX4706 ORD → MEM 30 76.0%
YX4713 ORD → MEM 30 93.3%
YX4713 MEM → ORD 30 70.0%

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 462 +11.6% 26 73.8%
June 2026 463 +10.0% 19 76.5%
May 2026 403 −2.9% 4 80.9%
April 2026 459 +39.5% 19 80.0%
March 2026 369 +4.8% 23 77.5%
February 2026 369 +36.2% 2 84.6%
January 2026 334 +45.9% 37 72.5%
December 2025 394 +82.4% 8 71.1%
November 2025 380 +47.3% 26 81.6%
October 2025 401 +167.3% 1 86.0%
September 2025 372 1 89.0%
August 2025 430 11 81.9%
July 2025 414 2 74.4%
June 2025 421 1 74.6%
May 2025 415 3 76.4%
April 2025 329 5 84.8%
March 2025 352 2 78.7%
February 2025 271 2 72.3%
January 2025 229 6 77.7%
December 2024 216 0 80.1%
November 2024 258 2 88.8%
October 2024 150 0 85.3%

How to read this chart

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