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1,349 km · Domestic

Louis Armstrong New Orleans (MSY) – Chicago O'Hare (ORD)

In July 2026, 347 flights operated between Louis Armstrong New Orleans and Chicago O'Hare (both directions), and 75.8% 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
January241392▲ 62.7%
February278438▲ 57.6%
March353461▲ 30.6%
April349435▲ 24.6%
May340365▲ 7.4%
June378402▲ 6.3%
July362347▼ 4.1%
August308––
September282––
October470–in progress
November418––
December370––
Year to date (Jan–Jul)2,3012,840▲ 23.4%

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
January87.1%75.3%▼ 13.5%
February82.7%80.6%▼ 2.5%
March79.6%70.5%▼ 11.4%
April86.8%75.4%▼ 13.1%
May85.0%82.7%▼ 2.7%
June78.6%73.9%▼ 6.0%
July68.0%75.8%▲ 11.5%
August82.8%––
September88.3%––
October86.4%–in progress
November79.9%––
December72.7%––
Year-to-date average (Jan–Jul)81.1%76.3%▼ 5.9%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January247▼ 70.8%
February220.0%
March035–
April516▲ 220.0%
May03–
June210▲ 400.0%
July017–
August6––
September2––
October0–in progress
November17––
December1––
Year to date (Jan–Jul)3390▲ 172.7%

Airlines on this route

  1. United Airlines 39.5%
  2. American Airlines 18.4%
  3. Envoy Air 15.6%
  4. Republic Airways 14.3%
  5. Spirit Airlines 8.5%
  6. SkyWest Airlines 3.4%

Oct 1, 2024 – Jul 31, 2026

By direction

MSY → ORD

Scheduled flights
3,960
Flights operated
3,881
Cancelled
79 · 2.0%
On-time departures
84.3%

ORD → MSY

Scheduled flights
3,962
Flights operated
3,890
Cancelled
72 · 1.8%
On-time departures
75.9%

MSY → ORD and ORD → MSY counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
United Airlines UA 3,128 39.5% 82.0% 38
American Airlines AA 1,455 18.4% 71.8% 28
Envoy Air MQ 1,238 15.6% 83.6% 18
Republic Airways YX 1,130 14.3% 83.2% 36
Spirit Airlines NK 677 8.5% 75.2% 27
SkyWest Airlines OO 272 3.4% 85.8% 4
Frontier Airlines F9 22 0.3% 72.7% 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 delay07:00–08:001.1min · 898 recorded · 893 measured
Gap to highest-delay hour43.0min07:00 ↔ 21:00
Recorded flights7,922MSY–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 · 3 recorded · 3 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 · 44 recorded · 43 measured · Source: the US BTS 06:00 · 91.1% · 550 recorded · 539 measured · Source: the US BTS 07:00 · 92.7% · 898 recorded · 893 measured · Source: the US BTS 08:00 · 88.2% · 333 recorded · 329 measured · Source: the US BTS 09:00 · 82.4% · 569 recorded · 551 measured · Source: the US BTS 10:00 · 86.5% · 1,280 recorded · 1,265 measured · Source: the US BTS 11:00 · 81.5% · 437 recorded · 433 measured · Source: the US BTS 12:00 · 82.4% · 371 recorded · 364 measured · Source: the US BTS 13:00 · 78.5% · 453 recorded · 446 measured · Source: the US BTS 14:00 · 77.9% · 755 recorded · 738 measured · Source: the US BTS 15:00 · 78.2% · 230 recorded · 225 measured · Source: the US BTS 16:00 · 79.5% · 276 recorded · 273 measured · Source: the US BTS 17:00 · 74.7% · 281 recorded · 269 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 203 recorded · 197 measured · Source: the US BTS 19:00 · 61.7% · 563 recorded · 553 measured · Source: the US BTS 20:00 · 59.7% · 421 recorded · 399 measured · Source: the US BTS 21:00 · 57.4% · 255 recorded · 251 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

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
00:00 · Fewer than 200 measured departures · 3 recorded · 3 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 · 44 recorded · 43 measured · Source: the US BTS 06:00 · 17.6 min · 550 recorded · 539 measured · Source: the US BTS 07:00 · 1.1 min · 898 recorded · 893 measured · Source: the US BTS 08:00 · 6.7 min · 333 recorded · 329 measured · Source: the US BTS 09:00 · 9.3 min · 569 recorded · 551 measured · Source: the US BTS 10:00 · 7.7 min · 1,280 recorded · 1,265 measured · Source: the US BTS 11:00 · 10.0 min · 437 recorded · 433 measured · Source: the US BTS 12:00 · 9.1 min · 371 recorded · 364 measured · Source: the US BTS 13:00 · 16.5 min · 453 recorded · 446 measured · Source: the US BTS 14:00 · 15.1 min · 755 recorded · 738 measured · Source: the US BTS 15:00 · 13.5 min · 230 recorded · 225 measured · Source: the US BTS 16:00 · 9.1 min · 276 recorded · 273 measured · Source: the US BTS 17:00 · 19.1 min · 281 recorded · 269 measured · Source: the US BTS 18:00 · Fewer than 200 measured departures · 203 recorded · 197 measured · Source: the US BTS 19:00 · 27.3 min · 563 recorded · 553 measured · Source: the US BTS 20:00 · 29.5 min · 421 recorded · 399 measured · Source: the US BTS 21:00 · 44.1 min · 255 recorded · 251 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 · 3 · 3 recorded · 3 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 · 44 · 44 recorded · 43 measured · Source: the US BTS 06:00 · 550 · 550 recorded · 539 measured · Source: the US BTS 07:00 · 898 · 898 recorded · 893 measured · Source: the US BTS 08:00 · 333 · 333 recorded · 329 measured · Source: the US BTS 09:00 · 569 · 569 recorded · 551 measured · Source: the US BTS 10:00 · 1,280 · 1,280 recorded · 1,265 measured · Source: the US BTS 11:00 · 437 · 437 recorded · 433 measured · Source: the US BTS 12:00 · 371 · 371 recorded · 364 measured · Source: the US BTS 13:00 · 453 · 453 recorded · 446 measured · Source: the US BTS 14:00 · 755 · 755 recorded · 738 measured · Source: the US BTS 15:00 · 230 · 230 recorded · 225 measured · Source: the US BTS 16:00 · 276 · 276 recorded · 273 measured · Source: the US BTS 17:00 · 281 · 281 recorded · 269 measured · Source: the US BTS 18:00 · 203 · 203 recorded · 197 measured · Source: the US BTS 19:00 · 563 · 563 recorded · 553 measured · Source: the US BTS 20:00 · 421 · 421 recorded · 399 measured · Source: the US BTS 21:00 · 255 · 255 recorded · 251 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
00:00Fewer than 200 measured departures—33
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:00Fewer than 200 measured departures—4344
06:0091.1%17.6 min539550
07:0092.7%1.1 min893898
08:0088.2%6.7 min329333
09:0082.4%9.3 min551569
10:0086.5%7.7 min1,2651,280
11:0081.5%10.0 min433437
12:0082.4%9.1 min364371
13:0078.5%16.5 min446453
14:0077.9%15.1 min738755
15:0078.2%13.5 min225230
16:0079.5%9.1 min273276
17:0074.7%19.1 min269281
18:00Fewer than 200 measured departures—197203
19:0061.7%27.3 min553563
20:0059.7%29.5 min399421
21:0057.4%44.1 min251255
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 · 77.6% · 1,207 recorded · 1,181 measured · Source: the US BTS Tuesday · 84.9% · 1,054 recorded · 1,035 measured · Source: the US BTS Wednesday · 82.2% · 1,059 recorded · 1,045 measured · Source: the US BTS Thursday · 81.4% · 1,184 recorded · 1,161 measured · Source: the US BTS Friday · 78.4% · 1,200 recorded · 1,176 measured · Source: the US BTS Saturday · 80.2% · 1,033 recorded · 1,008 measured · Source: the US BTS Sunday · 76.7% · 1,185 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 · 18.4 min · 1,207 recorded · 1,181 measured · Source: the US BTS Tuesday · 8.3 min · 1,054 recorded · 1,035 measured · Source: the US BTS Wednesday · 10.9 min · 1,059 recorded · 1,045 measured · Source: the US BTS Thursday · 12.5 min · 1,184 recorded · 1,161 measured · Source: the US BTS Friday · 14.1 min · 1,200 recorded · 1,176 measured · Source: the US BTS Saturday · 15.3 min · 1,033 recorded · 1,008 measured · Source: the US BTS Sunday · 16.5 min · 1,185 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 · 1,207 · 1,207 recorded · 1,181 measured · Source: the US BTS Tuesday · 1,054 · 1,054 recorded · 1,035 measured · Source: the US BTS Wednesday · 1,059 · 1,059 recorded · 1,045 measured · Source: the US BTS Thursday · 1,184 · 1,184 recorded · 1,161 measured · Source: the US BTS Friday · 1,200 · 1,200 recorded · 1,176 measured · Source: the US BTS Saturday · 1,033 · 1,033 recorded · 1,008 measured · Source: the US BTS Sunday · 1,185 · 1,185 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
Monday77.6%18.4 min1,1811,207
Tuesday84.9%8.3 min1,0351,054
Wednesday82.2%10.9 min1,0451,059
Thursday81.4%12.5 min1,1611,184
Friday78.4%14.1 min1,1761,200
Saturday80.2%15.3 min1,0081,033
Sunday76.7%16.5 min1,1651,185

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 · 79.8% · 664 recorded · 633 measured · Source: the US BTS Feb · 81.4% · 720 recorded · 716 measured · Source: the US BTS Mar · 74.5% · 849 recorded · 814 measured · Source: the US BTS Apr · 80.5% · 805 recorded · 784 measured · Source: the US BTS May · 83.8% · 708 recorded · 705 measured · Source: the US BTS Jun · 76.2% · 792 recorded · 780 measured · Source: the US BTS Jul · 71.8% · 726 recorded · 709 measured · Source: the US BTS Aug · 82.8% · 314 recorded · 308 measured · Source: the US BTS Sep · 88.3% · 284 recorded · 282 measured · Source: the US BTS Oct · 87.1% · 676 recorded · 676 measured · Source: the US BTS Nov · 83.9% · 718 recorded · 701 measured · Source: the US BTS Dec · 78.9% · 666 recorded · 663 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 · 12.1 min · 664 recorded · 633 measured · Source: the US BTS Feb · 15.1 min · 720 recorded · 716 measured · Source: the US BTS Mar · 22.3 min · 849 recorded · 814 measured · Source: the US BTS Apr · 13.8 min · 805 recorded · 784 measured · Source: the US BTS May · 9.0 min · 708 recorded · 705 measured · Source: the US BTS Jun · 17.1 min · 792 recorded · 780 measured · Source: the US BTS Jul · 19.9 min · 726 recorded · 709 measured · Source: the US BTS Aug · 8.4 min · 314 recorded · 308 measured · Source: the US BTS Sep · 3.0 min · 284 recorded · 282 measured · Source: the US BTS Oct · 5.5 min · 676 recorded · 676 measured · Source: the US BTS Nov · 13.8 min · 718 recorded · 701 measured · Source: the US BTS Dec · 14.3 min · 666 recorded · 663 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 · 664 · 664 recorded · 633 measured · Source: the US BTS Feb · 720 · 720 recorded · 716 measured · Source: the US BTS Mar · 849 · 849 recorded · 814 measured · Source: the US BTS Apr · 805 · 805 recorded · 784 measured · Source: the US BTS May · 708 · 708 recorded · 705 measured · Source: the US BTS Jun · 792 · 792 recorded · 780 measured · Source: the US BTS Jul · 726 · 726 recorded · 709 measured · Source: the US BTS Aug · 314 · 314 recorded · 308 measured · Source: the US BTS Sep · 284 · 284 recorded · 282 measured · Source: the US BTS Oct · 676 · 676 recorded · 676 measured · Source: the US BTS Nov · 718 · 718 recorded · 701 measured · Source: the US BTS Dec · 666 · 666 recorded · 663 measured · Source: the US BTS

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View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan79.8%12.1 min633664
Feb81.4%15.1 min716720
Mar74.5%22.3 min814849
Apr80.5%13.8 min784805
May83.8%9.0 min705708
Jun76.2%17.1 min780792
Jul71.8%19.9 min709726
Aug82.8%8.4 min308314
Sep88.3%3.0 min282284
Oct87.1%5.5 min676676
Nov83.9%13.8 min701718
Dec78.9%14.3 min663666

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 78.6% 6,223
  • Delayed >15 min 19.5% 1,548
  • Cancelled 1.9% 151
  • 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

89
89 of 89
Flight numbersBy direction DeparturesOn time
UA2154 MSY → ORD 289 81.8%
UA310 MSY → ORD 270 90.0%
UA1830 MSY → ORD 218 94.4%
UA1156 ORD → MSY 165 57.1%
AA677 ORD → MSY 155 50.7%
AA2743 MSY → ORD 153 88.2%
UA1761 ORD → MSY 152 61.6%
UA2479 ORD → MSY 150 87.1%
UA1495 MSY → ORD 139 79.7%
AA2236 MSY → ORD 136 70.4%
AA2236 ORD → MSY 135 83.6%
MQ4152 ORD → MSY 110 84.4%
MQ4152 MSY → ORD 110 80.7%
NK391 MSY → ORD 107 75.8%
NK394 ORD → MSY 107 39.6%
UA1741 ORD → MSY 88 87.5%
UA1899 ORD → MSY 85 61.2%
MQ4177 ORD → MSY 77 90.7%
UA1301 MSY → ORD 77 74.0%
AA2198 ORD → MSY 72 56.5%
AA2198 MSY → ORD 72 45.6%
YX4748 ORD → MSY 72 87.1%
YX4748 MSY → ORD 72 85.7%
UA1580 MSY → ORD 61 91.5%
NK494 ORD → MSY 59 89.8%
NK495 MSY → ORD 59 81.4%
UA1069 ORD → MSY 58 74.6%
UA426 ORD → MSY 56 83.0%
AA2293 ORD → MSY 54 49.0%
UA1815 ORD → MSY 54 72.2%
AA2872 MSY → ORD 53 88.0%
UA2488 MSY → ORD 53 90.4%
UA2859 ORD → MSY 53 96.2%
UA304 ORD → MSY 53 90.6%
UA2189 MSY → ORD 52 94.2%
AA1195 ORD → MSY 49 52.1%
MQ3896 ORD → MSY 49 68.8%
MQ3722 MSY → ORD 48 93.8%
MQ3716 MSY → ORD 47 95.7%
UA1868 ORD → MSY 47 70.2%
YX4720 MSY → ORD 45 65.1%
YX4720 ORD → MSY 45 64.4%
YX4391 MSY → ORD 42 82.1%
YX4391 ORD → MSY 42 92.3%
MQ4177 MSY → ORD 41 80.0%
NK477 MSY → ORD 41 87.5%
YX3687 ORD → MSY 40 85.0%
MQ3530 MSY → ORD 38 86.8%
MQ3530 ORD → MSY 37 86.5%
MQ3581 ORD → MSY 37 67.6%
MQ3593 ORD → MSY 37 88.9%
MQ3593 MSY → ORD 37 80.6%
MQ4201 MSY → ORD 37 73.0%
UA1346 ORD → MSY 37 70.3%
UA1850 ORD → MSY 37 91.9%
UA2138 MSY → ORD 37 91.9%
UA2179 MSY → ORD 37 81.1%
UA2271 MSY → ORD 37 94.1%
UA2420 MSY → ORD 37 91.4%
UA441 ORD → MSY 37 75.7%
UA570 ORD → MSY 37 94.4%
MQ3580 MSY → ORD 36 91.7%
NK2429 MSY → ORD 36 83.3%
NK2430 ORD → MSY 36 63.9%
UA1673 ORD → MSY 35 82.9%
UA2770 MSY → ORD 35 64.7%
UA2496 ORD → MSY 34 100.0%
MQ3928 ORD → MSY 33 78.1%
MQ3928 MSY → ORD 33 96.9%
NK476 ORD → MSY 33 97.0%
YX4353 ORD → MSY 33 84.4%
YX4426 ORD → MSY 33 78.8%
YX4427 MSY → ORD 33 93.9%
YX4528 ORD → MSY 33 86.2%
YX4533 MSY → ORD 33 90.0%
MQ4189 ORD → MSY 32 90.0%
MQ4189 MSY → ORD 32 86.7%
YX3597 MSY → ORD 32 90.0%
YX3658 ORD → MSY 32 84.4%
AA3183 MSY → ORD 31 90.0%
MQ3370 MSY → ORD 31 96.8%
MQ3731 ORD → MSY 31 48.4%
MQ3733 MSY → ORD 31 96.8%
UA1206 ORD → MSY 31 83.9%
AA2087 ORD → MSY 30 71.4%
AA2087 MSY → ORD 30 71.4%
OO5586 MSY → ORD 30 71.4%
OO6010 ORD → MSY 30 82.1%
YX4432 ORD → MSY 30 60.0%

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 347 −4.1% 17 75.8%
June 2026 402 +6.3% 10 73.9%
May 2026 365 +7.4% 3 82.7%
April 2026 435 +24.6% 16 75.4%
March 2026 461 +30.6% 35 70.5%
February 2026 438 +57.6% 2 80.6%
January 2026 392 +62.7% 7 75.3%
December 2025 370 +26.3% 1 72.7%
November 2025 418 +47.7% 17 79.9%
October 2025 470 +128.2% 0 86.4%
September 2025 282 2 88.3%
August 2025 308 6 82.8%
July 2025 362 0 68.0%
June 2025 378 2 78.6%
May 2025 340 0 85.0%
April 2025 349 5 86.8%
March 2025 353 0 79.6%
February 2025 278 2 82.7%
January 2025 241 24 87.1%
December 2024 293 2 86.7%
November 2024 283 0 89.8%
October 2024 206 0 88.8%

How to read this chart

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