Delta Air Lines
Is DL637 delayed?
No delay reported yet. DL637 is scheduled to leave Seattle at 11:03 on Nov 14 and reach Chicago at 16:39 (as of Nov 14, 15:44 UTC).
Usually on time: arrived within 15 min of schedule on 11 of the last 15 flights.
Each route and date is shown separately. Confirm that both airports match your booking.
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Seattle
SEA
Scheduled
Nov 14
Arrival
Chicago
ORD
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Los_Angeles)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
No live update yet
Showing the published schedule until live times come in.
Update time unavailable
Departure
Chicago
ORD
Scheduled
Nov 14
Arrival
Seattle
SEA
Scheduled
Nov 14
Times shown in airport local time
Service date: · Scheduled departure date (America/Chicago)
Flight details
Departure · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Arrival · UTC
- Scheduled
- Estimated
- Not available
- Actual
- Not available
Also sold as AF8779, KE3039, SK3466
Recent arrivals
Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.
- 14 min early
Seattle → Chicago
- 117 min late
Chicago → Seattle
- 10 min early
Seattle → Chicago
- 262 min late
Chicago → Seattle
- On schedule (10 min behind)
Seattle → Chicago
Is DL637 usually late?
Period: Oct 15, 2026 – Nov 14, 2026
On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Compares scheduled and actual arrival times. Cancelled and diverted flights are left out. Some flights may be missing.
At the airports today
Seattle (SEA) departures
- Left more than 15 min late
- 25 of 49
- Cancelled today
- 37
Chicago (ORD) departures
- Left more than 15 min late
- 64 of 156
- Cancelled today
- 132
Related flights
Flight history and details
| Service date | Departure | Arrival | Actual | Arrival delay (minutes) |
|---|---|---|---|---|
| Nov 12, 2026Arrived | Seattle | Chicago | -14 | |
| Nov 11, 2026Arrived | Chicago | Seattle | 117 | |
| Nov 11, 2026Arrived | Seattle | Chicago | -10 | |
| Nov 10, 2026Arrived | Chicago | Seattle | 262 | |
| Nov 10, 2026Arrived | Seattle | Chicago | 10 | |
| Nov 9, 2026Arrived | Chicago | Seattle | 27 | |
| Nov 9, 2026Arrived | Seattle | Chicago | -22 | |
| Nov 8, 2026Arrived | Seattle | Chicago | -23 | |
| Nov 7, 2026Arrived | Chicago | Seattle | 18 | |
| Nov 7, 2026Arrived | Seattle | Chicago | 5 | |
| Nov 6, 2026Arrived | Seattle | Chicago | -24 | |
| Nov 5, 2026Arrived | Seattle | Chicago | -9 | |
| Nov 4, 2026Arrived | Chicago | Seattle | -29 | |
| Nov 3, 2026Arrived | Chicago | Seattle | -43 | |
| Oct 31, 2026Arrived | Chicago | Seattle | -31 |