| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | IAD | STL | 09:12 | 09:56 |
Landed
|
Track > |
| May 19 | IAD | STL | 09:23 | 10:03 |
Landed
|
Track > |
| May 18 | IAD | STL | 09:16 | 10:02 |
Diverted
|
Track > |
| Claim > | ||||||
| May 17 | IAD | STL | 09:08 | 09:51 |
Landed
|
Track > |
| May 16 | IAD | STL | 09:25 | 10:07 |
Landed
|
Track > |
| May 15 | IAD | STL | 09:07 | 09:58 |
Landed
|
Track > |
| May 14 | IAD | STL | 09:44 | 10:30 |
Landed
|
Track > |
| May 13 | IAD | STL | 09:14 | 10:05 |
Landed
|
Track > |
| May 12 | IAD | STL | 09:21 | 10:05 |
Landed
|
Track > |
| May 11 | IAD | STL | 09:20 | 10:09 |
Landed
|
Track > |
United Airlines Flight UA4427 connects Washington, United States to St. Louis, United States, taking off from Washington Dulles International Airport IAD and landing at St. Louis Lambert International Airport STL.
How long is the UA4427 flight from Washington to St. Louis?
The average flight time from Washington to St. Louis is 1 hour and 45 minutes. The flight distance is 1117 km / 694 miles and the average flight speed is 636 km/h / 395 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA4427 Washington to St. Louis?
The Airportia On-Time Performance Rating for United Airlines Flight UA4427 is 5/5 stars. This metric is calculated using data from the past 10 flights.
Which terminal is the flight UA4427 arriving at?
Flight UA4427 arrives at St. Louis Lambert International Airport (STL) Terminal 1.
When was the latest UA4427 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Landed on 09:56.
How else can the flight UA4427 be referenced as?
This United Airlines flight can also be referenced as UAL4427, UA 4427, UAL 4427.
How often is flight UA4427 delayed?
On average, 10% of all UA4427 flights are delayed. The average delay is 2 minutes.
Can I get compensation for my delayed or cancelled UA4427 flight or baggage issues?
If your UA4427 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 UA4427 Flight Tracker above for more details.
Flight UA4427 is code-shared by 2 airlines using the flight numbers AV2344, CM2679
Other flights departing from Washington IAD: UA1323, UA2101, UA4333, UA6180
Other flights arriving at St. Louis STL: AA4658, AA3175, WN1680, AA4518
All flights connecting Washington IAD to St. Louis STL.
