| EXPECTED TO ARRIVE IN 7 HOUR 22 MINUTES |
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| Date | Flight | Departure Airport | Arrival Airport | Scheduled | Plane | Estimated | ||
|---|---|---|---|---|---|---|---|---|
| Departure | Arrival | Departure | Arrival | |||||
| Sat, 18 Apr | UA423 | Eleftherios Venizelos Intl (ATH) | Chicago Ohare Intl (ORD) | 12:35 EEST | 16:05 CDT | |||
| Fri, 17 Apr | UA423 | Eleftherios Venizelos Intl (ATH) | Chicago Ohare Intl (ORD) | 12:35 EEST | 16:05 CDT | N27903 (Boeing B788) | 13:26 EEST | 08:39 CDT |
| Thu, 16 Apr | UA423 | Eleftherios Venizelos Intl (ATH) | Chicago Ohare Intl (ORD) | 12:35 EEST | 16:05 CDT | N26902 (Boeing B788) | 13:09 EEST | 15:43 CDT |
| Wed, 15 Apr | UA423 | Eleftherios Venizelos Intl (ATH) | Chicago Ohare Intl (ORD) | 12:35 EEST | 16:05 CDT | N27901 (Boeing B788) | 12:53 EEST | 15:34 CDT |
| Tue, 14 Apr | UA423 | Eleftherios Venizelos Intl (ATH) | Chicago Ohare Intl (ORD) | 12:35 EEST | 16:05 CDT | N27908 (Boeing B788) | 12:50 EEST | 15:38 CDT |
| Fri, 27 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N75854 (Boeing B753) | 10:00 MDT | 13:26 CDT |
| Wed, 25 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N67827 (Boeing B739) | 10:05 MDT | 13:08 CDT |
| Tue, 24 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N77865 (Boeing B753) | 09:57 MDT | 13:03 CDT |
| Mon, 23 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N77867 (Boeing B753) | 10:13 MDT | 13:19 CDT |
| Sun, 22 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | 09:57 MDT | 13:12 CDT | |
| Sat, 21 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N73860 (Boeing B753) | 10:03 MDT | 16:31 CDT |
| Fri, 20 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | |||
| Wed, 18 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N57863 (Boeing B753) | 10:57 MDT | 14:05 CDT |
| Tue, 17 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N643UA (Boeing B763) | 10:12 MDT | 13:06 CDT |
| Mon, 16 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N77867 (Boeing B753) | 10:10 MDT | 13:26 CDT |
| Fri, 13 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N75851 (Boeing B753) | 10:30 MDT | 13:35 CDT |
| Wed, 11 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N57852 (Boeing B753) | 10:03 MDT | 12:10 CDT |
| Tue, 10 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N57864 (Boeing B753) | 10:08 MDT | 13:31 CDT |
| Mon, 09 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MDT | 13:35 CDT | N57863 (Boeing B753) | 10:05 MDT | 13:14 CDT |
| Sun, 08 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 09:03 MDT | 12:35 CDT | N73860 (Boeing B753) | 10:02 MDT | 13:19 CDT |
| Sat, 07 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MST | 13:35 CST | N74856 (Boeing B753) | 11:16 MST | 14:27 CST |
| Fri, 06 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MST | 13:35 CST | N57857 (Boeing B753) | 11:47 MST | 17:04 CST |
| Thu, 05 Mar | UA423 | Denver Intl (DEN) | George Bush Intercontinental (IAH) | 10:03 MST | 13:35 CST | N57870 (Boeing B753) | 11:11 MST | 14:31 CST |
| Wed, 04 Mar | UA423 | Denver Intl (DEN) | Detroit Metro Wayne Co (DTW) | 10:00 MST | 14:55 EST | N817UA (Airbus A319) | 10:52 MST | 15:27 EST |
| Tue, 03 Mar | UA423 | Denver Intl (DEN) | Detroit Metro Wayne Co (DTW) | 10:00 MST | 14:55 EST | 10:58 MST | 15:21 EST | |
| Mon, 02 Mar | UA423 | Denver Intl (DEN) | Detroit Metro Wayne Co (DTW) | 10:00 MST | 14:55 EST | N840UA (Airbus A319) | 10:52 MST | 15:15 EST |
| Sun, 01 Mar | UA423 | Denver Intl (DEN) | Detroit Metro Wayne Co (DTW) | 10:00 MST | 14:55 EST | 10:54 MST | 15:20 EST | |