| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Aug 10 | STL | ORD | 19:49 | 20:31 |
Delayed
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| Aug 09 | STL | ORD | 20:08 | 20:55 |
Delayed
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| Aug 08 | STL | ORD | 18:07 | 19:05 |
Landed
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| Aug 07 | STL | ORD | 18:04 | 18:57 |
Landed
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| Aug 06 | STL | ORD | 18:44 | 19:30 |
Landed
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| Aug 05 | STL | ORD | 18:20 | 19:24 |
Landed
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| Aug 04 | STL | ORD | 18:07 | 19:00 |
Landed
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| Aug 03 | STL | ORD | 18:22 | 19:09 |
Landed
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| Aug 02 | STL | ORD | 19:24 | 20:14 |
Landed Late
|
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| Aug 01 | STL | ORD | 18:21 | 19:12 |
Landed
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Track > |
United Airlines Flight UA1639 connects St. Louis, United States to Chicago, United States, taking off from St. Louis Lambert International Airport STL and landing at Chicago O'Hare International Airport ORD.
How long is the UA1639 flight from St. Louis to Chicago?
The average flight time from St. Louis to Chicago is 51 minutes. The flight distance is 415 km / 258 miles and the average flight speed is 494 km/h / 307 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA1639 St. Louis to Chicago?
The Airportia On-Time Performance Rating for United Airlines Flight UA1639 is 4.7/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA1639 arriving at?
Flight UA1639 arrives at Chicago O'Hare International Airport (ORD) Terminal 1.
When was the latest UA1639 flight?
The latest flight took off on Tuesday, August 11th, 2026 with the flight status being En-Route on 20:31.
How else can the flight UA1639 be referenced as?
This United Airlines flight can also be referenced as UAL1639, UA 1639, UAL 1639.
How often is flight UA1639 delayed?
On average, 30% of all UA1639 flights are delayed. The average delay is 63 minutes.
Can I get compensation for my delayed or cancelled UA1639 flight or baggage issues?
If your UA1639 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 UA1639 Flight Tracker above for more details.
Flight UA1639 is code-shared by 2 airlines using the flight numbers AC4919, NZ2898
Other flights departing from St. Louis STL: WN1030, WN4380, BA9607, AA5629
Other flights arriving at Chicago ORD: UA2770, 3S448, AA3793, AA4151
All flights connecting St. Louis STL to Chicago ORD.