| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Dec 17 | ORD | SEA | 13:49 | 16:05 |
Landed
|
Track > |
| Dec 16 | ORD | SEA | 13:44 | 16:02 |
Landed
|
Track > |
| Dec 15 | ORD | SEA | 13:42 | 15:51 |
Landed
|
Track > |
| Dec 14 | ORD | SEA | 14:01 | 16:02 |
Landed
|
Track > |
| Dec 13 | ORD | SEA | 13:41 | 15:51 |
Landed
|
Track > |
| Dec 12 | ORD | SEA | 13:50 | 16:11 |
Landed
|
Track > |
| Dec 11 | ORD | SEA | 13:43 | 15:57 |
Landed
|
Track > |
| Dec 10 | ORD | SEA | 14:10 | 16:35 |
Landed Late
|
Track > |
| Dec 09 | ORD | SEA | 13:49 | 16:17 |
Landed
|
Track > |
| Dec 08 | ORD | SEA | 13:51 | 16:21 |
Landed
|
Track > |
United Airlines Flight UA1139 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 UA1139 flight from Chicago to Seattle?
The average flight time from Chicago to Seattle is 4 hours and 17 minutes. The flight distance is 2762 km / 1716 miles and the average flight speed is 645 km/h / 401 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1139 Chicago to Seattle?
The Airportia On-Time Performance Rating for United Airlines Flight UA1139 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1139 arriving at?
Flight UA1139 arrives at Seattle Tacoma International Airport (SEA) Terminal B.
When was the latest UA1139 flight?
The latest flight took off on Thursday, December 18th, 2025 with the flight status being Landed on 16:05.
How else can the flight UA1139 be referenced as?
This United Airlines flight can also be referenced as UAL1139, UA 1139, UAL 1139.
How often is flight UA1139 delayed?
On average, 40% of all UA1139 flights are delayed. The average delay is 14 minutes.
Can I get compensation for my delayed or cancelled UA1139 flight or baggage issues?
If your UA1139 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 UA1139 Flight Tracker above for more details.
Flight UA1139 is code-shared by 1 airline using the flight number TK8609
Other flights departing from Chicago ORD: AA6261, DL5238, AA3205, AA3769
Other flights arriving at Seattle SEA: UA5252, DL3703, DL3839, AS2034
All flights connecting Chicago ORD to Seattle SEA.