Aviation Data
EN
EnglishTiếng Việt

976 km · Domestic

Hartsfield Jackson Atlanta (ATL) – Chicago O'Hare (ORD)

In July 2026, 1,168 flights operated between Hartsfield Jackson Atlanta and Chicago O'Hare (both directions), and 71.7% 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
January817870▲ 6.5%
February782890▲ 13.8%
March945972▲ 2.9%
April9831,075▲ 9.4%
May1,1101,179▲ 6.2%
June1,1141,133▲ 1.7%
July1,1101,168▲ 5.2%
August1,126––
September1,083––
October1,138–in progress
November997––
December947––
Year to date (Jan–Jul)6,8617,287▲ 6.2%

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
January81.8%76.2%▼ 6.8%
February81.5%84.2%▲ 3.3%
March80.8%70.4%▼ 12.9%
April80.0%77.1%▼ 3.6%
May81.1%77.6%▼ 4.3%
June70.6%75.0%▲ 6.2%
July68.6%71.7%▲ 4.5%
August77.6%––
September87.3%––
October82.2%–in progress
November75.9%––
December67.7%––
Year-to-date average (Jan–Jul)77.8%76.0%▼ 2.2%

Cancelled flights by month

The most recent periods19 periods
PeriodCancelled flights 2025Cancelled flights 2026Change vs last year
January4519▼ 57.8%
February10▼ 100.0%
March759▲ 742.9%
April1833▲ 83.3%
May414▲ 250.0%
June1934▲ 78.9%
July2938▲ 31.0%
August20––
September1––
October0–in progress
November55––
December31––
Year to date (Jan–Jul)123197▲ 60.2%

Airlines on this route

  1. Delta Air Lines 41.9%
  2. United Airlines 25.6%
  3. Frontier Airlines 10.4%
  4. American Airlines 9.7%
  5. Envoy Air 6.2%
  6. Republic Airways 4.5%

Oct 1, 2024 – Jul 31, 2026

By direction

ATL → ORD

Scheduled flights
11,176
Flights operated
10,956
Cancelled
220 · 2.0%
On-time departures
78.6%

ORD → ATL

Scheduled flights
11,175
Flights operated
10,963
Cancelled
212 · 1.9%
On-time departures
77.6%

ATL → ORD and ORD → ATL counted separately.

Airlines on this route

Oct 1, 2024 – Jul 31, 2026
AirlineScheduled flights Share On-time departures Cancelled
Delta Air Lines DL 9,372 41.9% 79.5% 168
United Airlines UA 5,717 25.6% 82.1% 76
Frontier Airlines F9 2,332 10.4% 67.1% 68
American Airlines AA 2,173 9.7% 69.6% 51
Envoy Air MQ 1,383 6.2% 83.3% 30
Republic Airways YX 1,016 4.5% 78.1% 36
Spirit Airlines NK 266 1.2% 77.8% 0
SkyWest Airlines OO 82 0.4% 72.2% 3
PSA Airlines OH 10 0.0% 90.0% 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 delay07:00–08:005.5min · 2,320 recorded · 2,280 measured
Gap to highest-delay hour38.1min07:00 ↔ 21:00
Recorded flights22,351ATL–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 · 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 · 89.6% · 899 recorded · 882 measured · Source: the US BTS 06:00 · 90.7% · 986 recorded · 972 measured · Source: the US BTS 07:00 · 89.9% · 2,320 recorded · 2,280 measured · Source: the US BTS 08:00 · 86.0% · 933 recorded · 920 measured · Source: the US BTS 09:00 · 83.0% · 1,657 recorded · 1,632 measured · Source: the US BTS 10:00 · 84.3% · 1,442 recorded · 1,428 measured · Source: the US BTS 11:00 · 82.2% · 1,676 recorded · 1,650 measured · Source: the US BTS 12:00 · 77.7% · 776 recorded · 766 measured · Source: the US BTS 13:00 · 81.4% · 1,424 recorded · 1,406 measured · Source: the US BTS 14:00 · 75.4% · 1,149 recorded · 1,130 measured · Source: the US BTS 15:00 · 75.5% · 1,947 recorded · 1,916 measured · Source: the US BTS 16:00 · 65.5% · 764 recorded · 738 measured · Source: the US BTS 17:00 · 66.8% · 1,291 recorded · 1,260 measured · Source: the US BTS 18:00 · 68.7% · 2,117 recorded · 2,065 measured · Source: the US BTS 19:00 · 64.9% · 1,121 recorded · 1,081 measured · Source: the US BTS 20:00 · 66.1% · 868 recorded · 846 measured · Source: the US BTS 21:00 · 62.5% · 217 recorded · 208 measured · Source: the US BTS 22:00 · 69.3% · 727 recorded · 703 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 36 recorded · 36 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 · 1 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 · 5.7 min · 899 recorded · 882 measured · Source: the US BTS 06:00 · 7.6 min · 986 recorded · 972 measured · Source: the US BTS 07:00 · 5.5 min · 2,320 recorded · 2,280 measured · Source: the US BTS 08:00 · 8.8 min · 933 recorded · 920 measured · Source: the US BTS 09:00 · 7.2 min · 1,657 recorded · 1,632 measured · Source: the US BTS 10:00 · 9.7 min · 1,442 recorded · 1,428 measured · Source: the US BTS 11:00 · 11.7 min · 1,676 recorded · 1,650 measured · Source: the US BTS 12:00 · 16.9 min · 776 recorded · 766 measured · Source: the US BTS 13:00 · 11.3 min · 1,424 recorded · 1,406 measured · Source: the US BTS 14:00 · 17.3 min · 1,149 recorded · 1,130 measured · Source: the US BTS 15:00 · 21.0 min · 1,947 recorded · 1,916 measured · Source: the US BTS 16:00 · 29.4 min · 764 recorded · 738 measured · Source: the US BTS 17:00 · 28.8 min · 1,291 recorded · 1,260 measured · Source: the US BTS 18:00 · 29.0 min · 2,117 recorded · 2,065 measured · Source: the US BTS 19:00 · 32.3 min · 1,121 recorded · 1,081 measured · Source: the US BTS 20:00 · 29.8 min · 868 recorded · 846 measured · Source: the US BTS 21:00 · 43.6 min · 217 recorded · 208 measured · Source: the US BTS 22:00 · 24.8 min · 727 recorded · 703 measured · Source: the US BTS 23:00 · Fewer than 200 measured departures · 36 recorded · 36 measured · Source: the US BTS

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

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
00:00 · 1 · 1 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 · 899 · 899 recorded · 882 measured · Source: the US BTS 06:00 · 986 · 986 recorded · 972 measured · Source: the US BTS 07:00 · 2,320 · 2,320 recorded · 2,280 measured · Source: the US BTS 08:00 · 933 · 933 recorded · 920 measured · Source: the US BTS 09:00 · 1,657 · 1,657 recorded · 1,632 measured · Source: the US BTS 10:00 · 1,442 · 1,442 recorded · 1,428 measured · Source: the US BTS 11:00 · 1,676 · 1,676 recorded · 1,650 measured · Source: the US BTS 12:00 · 776 · 776 recorded · 766 measured · Source: the US BTS 13:00 · 1,424 · 1,424 recorded · 1,406 measured · Source: the US BTS 14:00 · 1,149 · 1,149 recorded · 1,130 measured · Source: the US BTS 15:00 · 1,947 · 1,947 recorded · 1,916 measured · Source: the US BTS 16:00 · 764 · 764 recorded · 738 measured · Source: the US BTS 17:00 · 1,291 · 1,291 recorded · 1,260 measured · Source: the US BTS 18:00 · 2,117 · 2,117 recorded · 2,065 measured · Source: the US BTS 19:00 · 1,121 · 1,121 recorded · 1,081 measured · Source: the US BTS 20:00 · 868 · 868 recorded · 846 measured · Source: the US BTS 21:00 · 217 · 217 recorded · 208 measured · Source: the US BTS 22:00 · 727 · 727 recorded · 703 measured · Source: the US BTS 23:00 · 36 · 36 recorded · 36 measured · Source: the US BTS

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

View the figures
Departure hourOn-time departuresAverage departure delayWith departure timeRecorded flights
00:00Fewer than 200 measured departures—01
01:00No observations———
02:00No observations———
03:00No observations———
04:00No observations———
05:0089.6%5.7 min882899
06:0090.7%7.6 min972986
07:0089.9%5.5 min2,2802,320
08:0086.0%8.8 min920933
09:0083.0%7.2 min1,6321,657
10:0084.3%9.7 min1,4281,442
11:0082.2%11.7 min1,6501,676
12:0077.7%16.9 min766776
13:0081.4%11.3 min1,4061,424
14:0075.4%17.3 min1,1301,149
15:0075.5%21.0 min1,9161,947
16:0065.5%29.4 min738764
17:0066.8%28.8 min1,2601,291
18:0068.7%29.0 min2,0652,117
19:0064.9%32.3 min1,0811,121
20:0066.1%29.8 min846868
21:0062.5%43.6 min208217
22:0069.3%24.8 min703727
23:00Fewer than 200 measured departures—3636

Day of week

On-time departures Partial coverage: only airlines that report on-time data to the US DOT
Monday · 75.4% · 3,365 recorded · 3,277 measured · Source: the US BTS Tuesday · 81.5% · 3,095 recorded · 3,059 measured · Source: the US BTS Wednesday · 81.0% · 3,158 recorded · 3,123 measured · Source: the US BTS Thursday · 78.7% · 3,277 recorded · 3,237 measured · Source: the US BTS Friday · 76.7% · 3,345 recorded · 3,256 measured · Source: the US BTS Saturday · 78.5% · 2,848 recorded · 2,794 measured · Source: the US BTS Sunday · 75.0% · 3,263 recorded · 3,173 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 · 22.5 min · 3,365 recorded · 3,277 measured · Source: the US BTS Tuesday · 12.5 min · 3,095 recorded · 3,059 measured · Source: the US BTS Wednesday · 13.7 min · 3,158 recorded · 3,123 measured · Source: the US BTS Thursday · 16.3 min · 3,277 recorded · 3,237 measured · Source: the US BTS Friday · 16.5 min · 3,345 recorded · 3,256 measured · Source: the US BTS Saturday · 15.9 min · 2,848 recorded · 2,794 measured · Source: the US BTS Sunday · 20.7 min · 3,263 recorded · 3,173 measured · Source: the US BTS

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

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Monday · 3,365 · 3,365 recorded · 3,277 measured · Source: the US BTS Tuesday · 3,095 · 3,095 recorded · 3,059 measured · Source: the US BTS Wednesday · 3,158 · 3,158 recorded · 3,123 measured · Source: the US BTS Thursday · 3,277 · 3,277 recorded · 3,237 measured · Source: the US BTS Friday · 3,345 · 3,345 recorded · 3,256 measured · Source: the US BTS Saturday · 2,848 · 2,848 recorded · 2,794 measured · Source: the US BTS Sunday · 3,263 · 3,263 recorded · 3,173 measured · Source: the US BTS

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

View the figures
Day of weekOn-time departuresAverage departure delayWith departure timeRecorded flights
Monday75.4%22.5 min3,2773,365
Tuesday81.5%12.5 min3,0593,095
Wednesday81.0%13.7 min3,1233,158
Thursday78.7%16.3 min3,2373,277
Friday76.7%16.5 min3,2563,345
Saturday78.5%15.9 min2,7942,848
Sunday75.0%20.7 min3,1733,263

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 · 78.9% · 1,751 recorded · 1,687 measured · Source: the US BTS Feb · 82.9% · 1,673 recorded · 1,672 measured · Source: the US BTS Mar · 75.5% · 1,983 recorded · 1,917 measured · Source: the US BTS Apr · 78.5% · 2,109 recorded · 2,058 measured · Source: the US BTS May · 79.3% · 2,307 recorded · 2,289 measured · Source: the US BTS Jun · 72.8% · 2,300 recorded · 2,247 measured · Source: the US BTS Jul · 70.2% · 2,345 recorded · 2,278 measured · Source: the US BTS Aug · 77.6% · 1,146 recorded · 1,126 measured · Source: the US BTS Sep · 87.3% · 1,084 recorded · 1,083 measured · Source: the US BTS Oct · 85.2% · 1,798 recorded · 1,793 measured · Source: the US BTS Nov · 81.5% · 1,999 recorded · 1,944 measured · Source: the US BTS Dec · 74.0% · 1,856 recorded · 1,825 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
Jan · 14.0 min · 1,751 recorded · 1,687 measured · Source: the US BTS Feb · 9.7 min · 1,673 recorded · 1,672 measured · Source: the US BTS Mar · 19.4 min · 1,983 recorded · 1,917 measured · Source: the US BTS Apr · 19.7 min · 2,109 recorded · 2,058 measured · Source: the US BTS May · 14.1 min · 2,307 recorded · 2,289 measured · Source: the US BTS Jun · 26.4 min · 2,300 recorded · 2,247 measured · Source: the US BTS Jul · 25.9 min · 2,345 recorded · 2,278 measured · Source: the US BTS Aug · 18.3 min · 1,146 recorded · 1,126 measured · Source: the US BTS Sep · 7.4 min · 1,084 recorded · 1,083 measured · Source: the US BTS Oct · 6.8 min · 1,798 recorded · 1,793 measured · Source: the US BTS Nov · 13.7 min · 1,999 recorded · 1,944 measured · Source: the US BTS Dec · 19.5 min · 1,856 recorded · 1,825 measured · Source: the US BTS

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

Recorded flights Partial coverage: only airlines that report on-time data to the US DOT
Jan · 1,751 · 1,751 recorded · 1,687 measured · Source: the US BTS Feb · 1,673 · 1,673 recorded · 1,672 measured · Source: the US BTS Mar · 1,983 · 1,983 recorded · 1,917 measured · Source: the US BTS Apr · 2,109 · 2,109 recorded · 2,058 measured · Source: the US BTS May · 2,307 · 2,307 recorded · 2,289 measured · Source: the US BTS Jun · 2,300 · 2,300 recorded · 2,247 measured · Source: the US BTS Jul · 2,345 · 2,345 recorded · 2,278 measured · Source: the US BTS Aug · 1,146 · 1,146 recorded · 1,126 measured · Source: the US BTS Sep · 1,084 · 1,084 recorded · 1,083 measured · Source: the US BTS Oct · 1,798 · 1,798 recorded · 1,793 measured · Source: the US BTS Nov · 1,999 · 1,999 recorded · 1,944 measured · Source: the US BTS Dec · 1,856 · 1,856 recorded · 1,825 measured · Source: the US BTS

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

View the figures
Month of yearOn-time departuresAverage departure delayWith departure timeRecorded flights
Jan78.9%14.0 min1,6871,751
Feb82.9%9.7 min1,6721,673
Mar75.5%19.4 min1,9171,983
Apr78.5%19.7 min2,0582,109
May79.3%14.1 min2,2892,307
Jun72.8%26.4 min2,2472,300
Jul70.2%25.9 min2,2782,345
Aug77.6%18.3 min1,1261,146
Sep87.3%7.4 min1,0831,084
Oct85.2%6.8 min1,7931,798
Nov81.5%13.7 min1,9441,999
Dec74.0%19.5 min1,8251,856

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 76.6% 17,112
  • Delayed >15 min 21.5% 4,807
  • Cancelled 1.9% 432
  • 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

144
144 of 144
Flight numbersBy direction DeparturesOn time
DL1264 ORD → ATL 657 91.6%
DL1147 ORD → ATL 648 79.5%
DL1247 ORD → ATL 648 90.3%
DL1147 ATL → ORD 647 84.5%
DL1477 ATL → ORD 647 80.0%
UA516 ATL → ORD 631 80.4%
DL2738 ATL → ORD 628 76.6%
DL1178 ORD → ATL 608 88.6%
DL1199 ATL → ORD 607 75.8%
UA1046 ATL → ORD 589 78.5%
DL1477 ORD → ATL 584 71.2%
DL2879 ATL → ORD 582 70.2%
DL1178 ATL → ORD 580 93.2%
F991596 ORD → ATL 559 81.8%
F991441 ATL → ORD 547 68.7%
DL2738 ORD → ATL 524 66.1%
UA356 ORD → ATL 497 77.7%
DL1139 ATL → ORD 425 71.4%
F991442 ORD → ATL 383 61.6%
F993397 ATL → ORD 325 50.7%
UA1848 ORD → ATL 319 82.8%
DL1456 ATL → ORD 312 87.8%
DL2879 ORD → ATL 307 57.9%
UA1975 ORD → ATL 307 89.1%
UA1398 ORD → ATL 292 64.5%
F991595 ATL → ORD 276 56.5%
UA2298 ATL → ORD 276 90.2%
AA2779 ORD → ATL 261 54.9%
AA616 ATL → ORD 251 81.0%
DL1456 ORD → ATL 184 79.8%
UA745 ATL → ORD 168 81.7%
MQ3769 ATL → ORD 141 75.4%
AA2910 ORD → ATL 128 66.4%
AA2039 ATL → ORD 124 82.4%
F992198 ORD → ATL 123 78.0%
DL2509 ORD → ATL 117 88.9%
AA1656 ORD → ATL 111 81.9%
UA1859 ATL → ORD 105 89.2%
F993398 ORD → ATL 96 65.9%
YX4703 ORD → ATL 95 65.9%
YX4703 ATL → ORD 92 73.8%
UA248 ATL → ORD 91 91.2%
MQ3682 ATL → ORD 90 83.3%
MQ3794 ORD → ATL 90 86.7%
MQ4118 ORD → ATL 89 70.9%
DL2894 ATL → ORD 84 79.5%
UA380 ORD → ATL 80 85.0%
UA1972 ORD → ATL 78 78.7%
UA2605 ORD → ATL 77 83.1%
UA2249 ORD → ATL 74 93.1%
AA1363 ORD → ATL 72 69.0%
AA1372 ATL → ORD 72 44.9%
AA1375 ORD → ATL 72 53.5%
UA1239 ATL → ORD 72 84.7%
UA2684 ORD → ATL 72 87.5%
AA1363 ATL → ORD 71 74.3%
MQ3468 ATL → ORD 69 80.9%
MQ3468 ORD → ATL 69 89.7%
MQ3769 ORD → ATL 68 82.4%
YX4759 ATL → ORD 66 55.0%
YX4759 ORD → ATL 66 73.4%
UA357 ORD → ATL 65 83.1%
UA1962 ATL → ORD 62 88.7%
UA530 ORD → ATL 62 75.4%
AA2910 ATL → ORD 61 36.8%
AA3175 ORD → ATL 61 44.8%
AA3299 ATL → ORD 61 59.0%
DL2894 ORD → ATL 61 75.4%
DL976 ORD → ATL 61 67.8%
UA2225 ORD → ATL 61 85.3%
UA785 ATL → ORD 61 55.9%
DL976 ATL → ORD 60 76.3%
MQ3671 ATL → ORD 57 85.7%
YX4394 ATL → ORD 55 90.7%
DL2486 ATL → ORD 53 62.0%
UA1504 ORD → ATL 51 52.9%
DL2740 ORD → ATL 48 58.5%
UA1327 ORD → ATL 48 97.9%
UA1693 ATL → ORD 46 87.0%
AA1855 ATL → ORD 44 59.1%
AA1855 ORD → ATL 44 43.2%
AA2132 ATL → ORD 44 90.7%
AA2737 ORD → ATL 44 62.8%
AA2737 ATL → ORD 44 65.1%
MQ4085 ATL → ORD 44 88.6%
MQ4085 ORD → ATL 44 90.9%
NK2707 ATL → ORD 44 79.6%
NK2708 ORD → ATL 44 79.6%
DL2426 ORD → ATL 42 85.0%
UA1396 ATL → ORD 42 85.4%
MQ3616 ORD → ATL 39 89.2%
AA2934 ORD → ATL 38 81.6%
UA1663 ORD → ATL 37 94.6%
UA2338 ORD → ATL 37 82.9%
UA2390 ORD → ATL 37 97.1%
UA2496 ORD → ATL 37 72.2%
UA2605 ATL → ORD 37 86.5%
UA364 ATL → ORD 37 82.4%
UA425 ORD → ATL 37 86.5%
UA570 ATL → ORD 37 83.8%
AA2367 ATL → ORD 36 83.3%
DL1674 ORD → ATL 36 48.6%
MQ3729 ATL → ORD 36 82.4%
MQ4062 ORD → ATL 36 97.1%
UA2770 ORD → ATL 36 74.3%
YX4543 ORD → ATL 36 74.3%
NK1115 ORD → ATL 35 54.3%
NK1116 ATL → ORD 35 88.6%
UA1231 ATL → ORD 35 82.4%
UA1577 ATL → ORD 35 88.6%
UA2811 ORD → ATL 35 85.3%
UA617 ORD → ATL 35 68.6%
UA1928 ATL → ORD 34 97.1%
UA512 ORD → ATL 34 75.8%
DL2175 ORD → ATL 33 81.8%
MQ3422 ORD → ATL 33 81.8%
OO6502 ORD → ATL 33 48.5%
YX4628 ATL → ORD 33 93.8%
MQ3681 ORD → ATL 32 83.9%
MQ3693 ATL → ORD 32 87.1%
OO4992 ATL → ORD 32 93.6%
UA1554 ATL → ORD 32 93.6%
UA1761 ORD → ATL 32 77.4%
UA1795 ORD → ATL 32 64.5%
UA2449 ATL → ORD 32 93.6%
YX4583 ORD → ATL 32 80.7%
YX4583 ATL → ORD 32 83.9%
AA2477 ATL → ORD 31 93.6%
DL1164 ATL → ORD 31 80.7%
DL1516 ORD → ATL 31 93.6%
MQ3955 ORD → ATL 31 90.0%
MQ3957 ATL → ORD 31 100.0%
UA2056 ORD → ATL 31 93.6%
UA281 ATL → ORD 31 93.6%
UA664 ORD → ATL 31 83.9%
YX4465 ATL → ORD 31 90.3%
YX4465 ORD → ATL 31 87.1%
MQ3422 ATL → ORD 30 75.9%
MQ3449 ORD → ATL 30 86.2%
UA1030 ATL → ORD 30 74.1%
YX4409 ATL → ORD 30 76.7%
YX4414 ORD → ATL 30 80.0%
YX4485 ATL → ORD 30 93.3%
YX4637 ORD → ATL 30 90.0%

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 1,168 +5.2% 38 71.7%
June 2026 1,133 +1.7% 34 75.0%
May 2026 1,179 +6.2% 14 77.6%
April 2026 1,075 +9.4% 33 77.1%
March 2026 972 +2.9% 59 70.4%
February 2026 890 +13.8% 0 84.2%
January 2026 870 +6.5% 19 76.2%
December 2025 947 +7.9% 31 67.7%
November 2025 997 +5.3% 55 75.9%
October 2025 1,138 +73.7% 0 82.2%
September 2025 1,083 1 87.3%
August 2025 1,126 20 77.6%
July 2025 1,110 29 68.6%
June 2025 1,114 19 70.6%
May 2025 1,110 4 81.1%
April 2025 983 18 80.0%
March 2025 945 7 80.8%
February 2025 782 1 81.5%
January 2025 817 45 81.8%
December 2024 878 0 80.9%
November 2024 947 0 87.4%
October 2024 655 5 90.2%

How to read this chart

Loading the guide…