| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Apr 29 | GRR | IAH | 11:40 | 08:35 |
Unknown
|
Track > |
| Apr 28 | GRR | IAH | 06:50 | 08:34 |
Landed
|
Track > |
| Apr 27 | GRR | IAH | 06:31 | 08:10 |
Landed
|
Track > |
| Apr 26 | GRR | IAH | 08:04 | 09:30 |
Delayed
|
Track > |
| Apr 25 | GRR | IAH | 06:41 | 08:06 |
Landed
|
Track > |
| Apr 24 | GRR | IAH | 06:38 | 08:08 |
Landed
|
Track > |
| Apr 23 | GRR | IAH | 06:38 | 08:09 |
Landed
|
Track > |
| Apr 22 | GRR | IAH | 06:38 | 08:00 |
Landed
|
Track > |
| Apr 21 | GRR | IAH | 06:39 | 08:20 |
Landed
|
Track > |
| Apr 20 | GRR | IAH | 06:39 | 08:07 |
Landed
|
Track > |
United Airlines Flight UA3991 connects Grand Rapids, United States to Houston, United States, taking off from Grand Rapids Gerald R. Ford International Airport GRR and landing at Houston George Bush Intercontinental Airport IAH.
How long is the UA3991 flight from Grand Rapids to Houston?
The average flight time from Grand Rapids to Houston is 2 hours and 31 minutes. The flight distance is 1679 km / 1043 miles and the average flight speed is 653 km/h / 406 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3991 Grand Rapids to Houston?
The Airportia On-Time Performance Rating for United Airlines Flight UA3991 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA3991 arriving at?
Flight UA3991 arrives at Houston George Bush Intercontinental Airport (IAH) Terminal B.
When was the latest UA3991 flight?
The latest flight took off on Wednesday, April 29th, 2026 with the flight status being Unknown on 08:35.
How else can the flight UA3991 be referenced as?
This United Airlines flight can also be referenced as UAL3991, UA 3991, UAL 3991.
How often is flight UA3991 delayed?
On average, 10% of all UA3991 flights are delayed. The average delay is 55 minutes.
Can I get compensation for my delayed or cancelled UA3991 flight or baggage issues?
If your UA3991 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 UA3991 Flight Tracker above for more details.
Flight UA3991 is code-shared by 1 airline using the flight number NZ9795
Other flights departing from Grand Rapids GRR: UA4398, DL5202, AA3541, DL4028
Other flights arriving at Houston IAH: UA1898, UA3983, UA6349, UA4255
All flights connecting Grand Rapids GRR to Houston IAH.