| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 27 | ORD | SEA | 17:55 | 20:34 |
Scheduled
|
Track > |
| Jul 26 | ORD | SEA | 18:04 | 20:08 |
Landed
|
Track > |
| Jul 25 | ORD | SEA | 18:52 | 20:55 |
Landed Late
|
Track > |
| Jul 24 | ORD | SEA | 18:15 | 20:15 |
Landed
|
Track > |
| Jul 23 | ORD | SEA | 18:56 | 20:52 |
Landed Late
|
Track > |
| Jul 22 | ORD | SEA | 18:58 | 21:10 |
Landed Late
|
Track > |
| Jul 21 | ORD | SEA | 18:23 | 20:24 |
Landed
|
Track > |
| Jul 20 | ORD | SEA | 18:27 | 20:20 |
En-Route
|
Track > |
| Jul 19 | ORD | SEA | 18:27 | 20:39 |
Landed
|
Track > |
| Jul 18 | ORD | SEA | 18:20 | 20:15 |
Landed
|
Track > |
Delta Air Lines Flight DL637 connects Chicago, United States to Seattle, United States, taking off from Chicago O'Hare International Airport ORD and landing at Seattle Tacoma International Airport SEA.
How long is the DL637 flight from Chicago to Seattle?
The average flight time from Chicago to Seattle is 4 hours and 1 minute. The flight distance is 2762 km / 1716 miles and the average flight speed is 677 km/h / 420 mph.
How many DL637 flights are operated per week?
7 flights per week. The flight DL637 is operated on Monday, Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of Delta Air Lines Flight DL637 Chicago to Seattle?
The Airportia On-Time Performance Rating for Delta Air Lines Flight DL637 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest DL637 flight?
The latest flight took off on Tuesday, July 28th, 2026 with the flight status being Scheduled on 20:34.
How else can the flight DL637 be referenced as?
This Delta Air Lines flight can also be referenced as DAL637, DL0637, DL 637, DAL 637.
How often is flight DL637 delayed?
On average, 40% of all DL637 flights are delayed. The average delay is 20 minutes.
Can I get compensation for my delayed or cancelled DL637 flight or baggage issues?
If your DL637 flight was cancelled, delayed, or if you experienced baggage issues such as delayed, damaged, or lost bags, you may be entitled to compensation. Compensation amounts and eligibility depend on various regulations, including EC 261/2004, UK261, CA Montreal Convention, US GoodWill, BR-ANAC, SA-GACA and TK-SHY.
See our DL637 Flight Tracker above for more details.
Other flights departing from Chicago ORD: AA1787, G74412, UA5258, UA5405
Other flights arriving at Seattle SEA: AS417, AS2084, AS2138, AS2313
All flights connecting Chicago ORD to Seattle SEA.