| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jun 30 | OKC | DEN | 17:24 | 17:59 |
Landed
|
Track > |
| Jun 27 | OKC | DEN | 18:31 | 19:10 |
Delayed
|
Track > |
United Airlines Flight UA400 connects Oklahoma City, United States to Denver, United States, taking off from Oklahoma City Will Rogers World Airport OKC and landing at Denver International Airport DEN.
How long is the UA400 flight from Oklahoma City to Denver?
The average flight time from Oklahoma City to Denver is 1 hour and 37 minutes. The flight distance is 796 km / 495 miles and the average flight speed is 493 km/h / 306 mph.
How many UA400 flights are operated per week?
2 flights per week. The flight UA400 is operated on Tuesday and Saturday.
What is the On-Time Performance (OTP) of United Airlines Flight UA400 Oklahoma City to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA400 is 4.5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA400 flight?
The latest flight took off on Wednesday, July 1st, 2026 with the flight status being Landed on 17:59.
How else can the flight UA400 be referenced as?
This United Airlines flight can also be referenced as UAL400, UA0400, UA 400, UAL 400.
How often is flight UA400 delayed?
On average, 50% of all UA400 flights are delayed. The average delay is 55 minutes.
Can I get compensation for my delayed or cancelled UA400 flight or baggage issues?
If your UA400 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 UA400 Flight Tracker above for more details.
Flight UA400 is code-shared by 1 airline using the flight number AC4128
Other flights departing from Oklahoma City OKC: UA6253, AA5648, UA5844, AA2891
Other flights arriving at Denver DEN: UA1773, UA720, UA1303, UA333
All flights connecting Oklahoma City OKC to Denver DEN.