| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 25 | IAH | SDF | 18:48 | 21:32 |
Landed
|
Track > |
| Oct 24 | IAH | SDF | 18:44 | 21:29 |
Landed
|
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| Oct 23 | IAH | SDF | 18:35 | 21:18 |
Landed
|
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| Oct 22 | IAH | SDF | 18:51 | 21:39 |
Landed
|
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| Oct 21 | IAH | SDF | 21:41 | 00:33 |
Delayed
|
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| Oct 20 | IAH | SDF | 18:34 | 21:19 |
Landed
|
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| Oct 19 | IAH | SDF | 18:39 | 21:31 |
Landed
|
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| Oct 18 | IAH | SDF | 20:43 | 23:33 |
Delayed
|
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| Oct 17 | IAH | SDF | 18:38 | 21:26 |
Landed
|
Track > |
| Oct 16 | IAH | SDF | 19:02 | 21:50 |
Landed
|
Track > |
United Airlines Flight UA3997 connects Houston, United States to Louisville, United States, taking off from Houston George Bush Intercontinental Airport IAH and landing at Louisville International Airport SDF.
How long is the UA3997 flight from Houston to Louisville?
The average flight time from Houston to Louisville is 1 hour and 47 minutes. The flight distance is 1268 km / 788 miles and the average flight speed is 708 km/h / 440 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3997 Houston to Louisville?
The Airportia On-Time Performance Rating for United Airlines Flight UA3997 is 4.6/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3997 arriving at?
Flight UA3997 arrives at Louisville International Airport (SDF) Terminal 2.
When was the latest UA3997 flight?
The latest flight took off on Sunday, October 26th, 2025 with the flight status being Landed on 21:32.
How else can the flight UA3997 be referenced as?
This United Airlines flight can also be referenced as UAL3997, UA 3997, UAL 3997.
How often is flight UA3997 delayed?
On average, 20% of all UA3997 flights are delayed. The average delay is 129 minutes.
Can I get compensation for my delayed or cancelled UA3997 flight or baggage issues?
If your UA3997 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 UA3997 Flight Tracker above for more details.
Flight UA3997 is code-shared by 2 airlines using the flight numbers CM1680, NZ6629
Other flights departing from Houston IAH: UA2197, UA517, UA6282, UA614
Other flights arriving at Louisville SDF: WN3388, WN1938, AA2895, WN1475
All flights connecting Houston IAH to Louisville SDF.
