| ARRIVED 1 HOUR 5 MINUTES AGO |
 |  |
Departure (DL637 Flight Schedule)
Seattle, United StatesPDT 00:00:00 DAY
Arrival (DL637 Flight Schedule)
CDT 00:00:00 DAY
Flight Radar Checker DL 637
Live Flight Tracker Map
Flight DL637 from Seattle to Chicago is operated by Delta Air Lines. Scheduled time of departure from Seattle Tacoma Intl is 10:35 PDT and scheduled time of arrival in Chicago Ohare Intl is 16:45 CDT. The duration of the flight is 4 hours 10 minutes.
Flight Finder
from Chicago to Seattle
| Flight | Departure | Arrival |
|---|---|---|
| WN1838 00:05 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| WN3378 00:10 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| AA1459 00:16 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| WN4144 00:30 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| CI5235 03:25 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| KE233 04:15 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS715 08:34 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AA2523 09:27 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| UA341 09:40 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| DL2041 09:45 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS515 10:21 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS587 10:37 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| UA2099 11:38 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| WN1155 12:30 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| AS329 12:36 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| WN2231 12:50 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| WN1876 12:50 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| AA2520 12:56 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| WN3521 13:05 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| WN1340 13:10 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| AA2524 14:16 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| DL1564 15:18 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS579 15:42 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| UA1660 16:09 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS407 18:06 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| EJA677 18:12 |
Chicago Midway Intl (MDW) |
Boeing Fld King Co Intl (BFI) |
| UA1801 19:05 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| WN4061 19:10 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| WN636 19:35 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| WN2890 19:45 |
Chicago Midway Intl (MDW) |
Seattle Tacoma Intl (SEA) |
| AS408 20:21 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS337 20:21 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS584 20:22 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AA3105 20:33 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| DL637 20:50 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS583 21:34 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| AS429 22:30 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
| UA2211 22:49 |
Chicago Ohare Intl (ORD) |
Seattle Tacoma Intl (SEA) |
History Flight Information for DL637 from Flight Scanner System
| Date | Flight | Departure Airport | Arrival Airport | Scheduled | Plane | Estimated | ||
|---|---|---|---|---|---|---|---|---|
| Departure | Arrival | Departure | Arrival | |||||
| Tue, 16 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | |||
| Tue, 16 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N860DN (Boeing B739) | 10:48 PDT | 16:08 CDT |
| Mon, 15 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N802DN (Boeing B739) | 18:09 CDT | 20:07 PDT |
| Mon, 15 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N802DN (Boeing B739) | 11:11 PDT | 16:40 CDT |
| Sun, 14 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N833DN (Boeing B739) | 18:16 CDT | 20:13 PDT |
| Sun, 14 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N833DN (Boeing B739) | 10:49 PDT | 16:10 CDT |
| Sat, 13 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N812DN (Boeing B739) | 18:04 CDT | 19:57 PDT |
| Sat, 13 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N812DN (Boeing B739) | 10:53 PDT | 16:07 CDT |
| Fri, 12 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | 18:13 CDT | 20:23 PDT | |
| Fri, 12 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | 11:11 PDT | 16:20 CDT | |
| Thu, 11 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | |||
| Thu, 11 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | |||
| Wed, 10 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | |||
| Wed, 10 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | |||
| Tue, 09 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N815DN (Boeing B739) | 18:15 CDT | 20:00 PDT |
| Tue, 09 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N815DN (Boeing B739) | 10:44 PDT | 16:27 CDT |
| Mon, 08 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N192DN (Boeing B763) | 18:19 CDT | 20:21 PDT |
| Mon, 08 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:45 CDT | N851DN (Boeing B739) | 10:37 PDT | 16:53 CDT |
| Sun, 07 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 17:55 CDT | 20:35 PDT | N853DN (Boeing B739) | 19:14 CDT | 21:02 PDT |
| Sat, 06 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:57 CDT | 21:40 PDT | N3755D (Boeing B738) | 19:05 CDT | 20:55 PDT |
| Sat, 06 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:59 PDT | 17:11 CDT | N3755D (Boeing B738) | 11:21 PDT | 16:51 CDT |
| Fri, 05 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N850DN (Boeing B739) | 18:46 CDT | 20:39 PDT |
| Fri, 05 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:47 CDT | N850DN (Boeing B739) | 10:46 PDT | 16:27 CDT |
| Thu, 04 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:57 CDT | 21:06 PDT | |
| Thu, 04 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:47 CDT | 10:40 PDT | 16:39 CDT | |
| Wed, 03 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N830DN (Boeing B739) | 18:22 CDT | 20:31 PDT |
| Wed, 03 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:47 CDT | N830DN (Boeing B739) | 10:36 PDT | 16:19 CDT |
| Tue, 02 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N870DN (Boeing B739) | 18:42 CDT | 20:25 PDT |
| Mon, 01 Jun | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N829DN (Boeing B739) | 18:36 CDT | 20:26 PDT |
| Mon, 01 Jun | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:47 CDT | N829DN (Boeing B739) | 10:52 PDT | 16:27 CDT |
| Sun, 31 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:43 CDT | 16:59 PDT | |
| Sat, 30 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:55 CDT | 21:40 PDT | N399DA (Boeing B738) | 18:59 CDT | 20:35 PDT |
| Sat, 30 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:59 PDT | 17:13 CDT | N399DA (Boeing B738) | 11:13 PDT | 17:09 CDT |
| Fri, 29 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N3749D (Boeing B738) | 19:12 CDT | 20:54 PDT |
| Thu, 28 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N874DN (Boeing B739) | 18:36 CDT | 20:09 PDT |
| Thu, 28 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N874DN (Boeing B739) | 10:36 PDT | 16:14 CDT |
| Wed, 27 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N827DN (Boeing B739) | 18:55 CDT | 20:47 PDT |
| Wed, 27 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N827DN (Boeing B739) | 10:37 PDT | 16:11 CDT |
| Tue, 26 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:37 CDT | 20:14 PDT | |
| Tue, 26 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:56 PDT | 16:58 CDT | |
| Mon, 25 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:39 CDT | 20:27 PDT | |
| Mon, 25 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:35 PDT | 16:16 CDT | |
| Sun, 24 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:55 CDT | 21:40 PDT | N3743H (Boeing B738) | 19:22 CDT | 21:21 PDT |
| Sun, 24 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:59 PDT | 17:13 CDT | N3743H (Boeing B738) | 11:18 PDT | 16:38 CDT |
| Sat, 23 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:55 CDT | 21:40 PDT | N3742C (Boeing B738) | 19:09 CDT | 21:03 PDT |
| Sat, 23 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:59 PDT | 17:13 CDT | N3742C (Boeing B738) | 11:19 PDT | 16:59 CDT |
| Fri, 22 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:39 CDT | 20:37 PDT | |
| Fri, 22 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:48 PDT | 16:28 CDT | |
| Thu, 21 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:34 CDT | 20:28 PDT | |
| Thu, 21 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:39 PDT | 16:22 CDT | |
| Wed, 20 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 19:00 CDT | 20:55 PDT | |
| Wed, 20 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:37 PDT | 17:21 CDT | |
| Tue, 19 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:51 CDT | 20:40 PDT | |
| Tue, 19 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:45 PDT | 16:23 CDT | |
| Mon, 18 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N857DZ (Boeing B739) | 18:49 CDT | 20:32 PDT |
| Sun, 17 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N844DN (Boeing B739) | 18:45 CDT | 20:46 PDT |
| Sun, 17 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N844DN (Boeing B739) | 11:00 PDT | 17:04 CDT |
| Sat, 16 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:55 CDT | 21:40 PDT | N381DN (Boeing B738) | 19:04 CDT | 20:59 PDT |
| Fri, 15 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:57 CDT | 21:00 PDT | |
| Fri, 15 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 11:21 PDT | 16:49 CDT | |
| Thu, 14 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N870DN (Boeing B739) | 18:38 CDT | 20:44 PDT |
| Thu, 14 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N870DN (Boeing B739) | 10:38 PDT | 16:10 CDT |
| Wed, 13 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N857DZ (Boeing B739) | 18:52 CDT | 21:15 PDT |
| Wed, 13 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N857DZ (Boeing B739) | 10:31 PDT | 16:31 CDT |
| Tue, 12 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 18:40 CDT | 20:47 PDT | |
| Tue, 12 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:47 PDT | 16:05 CDT | |
| Mon, 11 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N827DN (Boeing B739) | 12:32 PDT | 17:36 CDT |
| Sun, 10 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N871DN (Boeing B739) | 18:53 CDT | 21:01 PDT |
| Sun, 10 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N871DN (Boeing B739) | 11:08 PDT | 16:32 CDT |
| Sat, 09 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:55 CDT | 21:40 PDT | N3744F (Boeing B738) | 19:35 CDT | 21:38 PDT |
| Sat, 09 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:59 PDT | 17:13 CDT | N3744F (Boeing B738) | 11:03 PDT | 16:42 CDT |
| Fri, 08 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | N890DN ( B739) | 18:51 CDT | 20:59 PDT |
| Fri, 08 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | N890DN ( B739) | 10:37 PDT | 15:58 CDT |
| Thu, 07 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:20 CDT | 20:50 PDT | 20:44 CDT | 22:38 PDT | |
| Thu, 07 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:49 CDT | 10:45 PDT | 17:57 CDT | |
| Wed, 06 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:00 CDT | 20:43 PDT | 18:41 CDT | 20:48 PDT | |
| Wed, 06 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:39 CDT | 10:48 PDT | 16:29 CDT | |
| Tue, 05 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:00 CDT | 20:43 PDT | 18:23 CDT | 20:20 PDT | |
| Tue, 05 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:39 CDT | 10:46 PDT | 16:26 CDT | |
| Mon, 04 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:00 CDT | 20:43 PDT | 19:35 CDT | 21:56 PDT | |
| Mon, 04 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:39 CDT | 10:38 PDT | 16:48 CDT | |
| Sun, 03 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:00 CDT | 20:43 PDT | 18:29 CDT | 20:26 PDT | |
| Sun, 03 May | DL637 | Seattle Tacoma Intl (SEA) | Chicago Ohare Intl (ORD) | 10:35 PDT | 16:39 CDT | 10:30 PDT | 16:00 CDT | |
| Fri, 01 May | DL637 | Chicago Ohare Intl (ORD) | Seattle Tacoma Intl (SEA) | 18:00 CDT | 20:43 PDT | 18:13 CDT | 20:04 PDT | |
Disclaimer for DL637 Flight Radar Data
Flight DL637 from Seattle Tacoma Intl to Chicago Ohare Intl data is collected from different sources. The data is for informational purposes only and PlaneMapper is not responsible for the accuracy and reliability of flight DL637 data.
