| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jan 05 | ATL | IAD | 05:41 | 06:59 |
Landed
|
Track > |
| Jan 04 | ATL | IAD | 05:37 | 06:55 |
Landed
|
Track > |
| Jan 03 | ATL | IAD | 05:42 | 06:57 |
Landed
|
Track > |
| Jan 02 | ATL | IAD | 05:43 | 07:01 |
Landed
|
Track > |
| Jan 01 | ATL | IAD | 05:42 | 07:05 |
Landed
|
Track > |
| Dec 31 | ATL | IAD | 05:44 | 07:01 |
Landed
|
Track > |
| Dec 30 | ATL | IAD | 05:44 | 06:57 |
Landed
|
Track > |
| Dec 29 | ATL | IAD | 05:55 | 07:22 |
Landed
|
Track > |
| Dec 28 | ATL | IAD | 05:44 | 07:09 |
Landed
|
Track > |
| Dec 27 | ATL | IAD | 05:55 | 07:13 |
Landed
|
Track > |
United Airlines Flight UA3991 connects Atlanta, United States to Washington, United States, taking off from Atlanta Hartsfield-Jackson International Airport ATL and landing at Washington Dulles International Airport IAD.
How long is the UA3991 flight from Atlanta to Washington?
The average flight time from Atlanta to Washington is 1 hour and 19 minutes. The flight distance is 859 km / 534 miles and the average flight speed is 652 km/h / 405 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA3991 Atlanta to Washington?
The Airportia On-Time Performance Rating for United Airlines Flight UA3991 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA3991 flight?
The latest flight took off on Monday, January 5th, 2026 with the flight status being Landed on 06:59.
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 1 minute.
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 2 airlines using the flight numbers CM2124, NH7103
Other flights departing from Atlanta ATL: NK242, NK291, AA4518, 8C3320
Other flights arriving at Washington IAD: UA454, UA6168, UA3417, UA4225
All flights connecting Atlanta ATL to Washington IAD.