| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Jul 13 | RIC | DEN | 16:21 | 17:27 |
Landed
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| Jul 12 | RIC | DEN | 17:04 | 18:11 |
Landed
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| Jul 11 | RIC | DEN | 16:32 | 17:55 |
Landed
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| Jul 10 | RIC | DEN | 16:30 | 17:57 |
En-Route
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| Jul 09 | RIC | DEN | 17:19 | 19:21 |
Delayed
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| Jul 06 | RIC | DEN | 16:47 | 18:14 |
Landed
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| Jul 05 | RIC | DEN | 16:54 | 18:08 |
Landed
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| Jul 03 | RIC | DEN | 16:36 | 18:10 |
Landed
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| Jul 02 | RIC | DEN | 16:31 | 17:53 |
Landed
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| Jun 29 | RIC | DEN | 16:27 | 17:41 |
Landed
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United Airlines Flight UA400 connects Richmond, United States to Denver, United States, taking off from Richmond Airport RIC and landing at Denver International Airport DEN.
How long is the UA400 flight from Richmond to Denver?
The average flight time from Richmond to Denver is 3 hours and 23 minutes. The flight distance is 2379 km / 1478 miles and the average flight speed is 705 km/h / 438 mph.
How many UA400 flights are operated per week?
5 flights per week. The flight UA400 is operated on Monday, Thursday, Friday, Saturday and Sunday.
What is the On-Time Performance (OTP) of United Airlines Flight UA400 Richmond to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA400 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA400 flight?
The latest flight took off on Tuesday, July 14th, 2026 with the flight status being Landed on 17:27.
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 20 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 AC4703
Other flights departing from Richmond RIC: UA6231, DL5301, WN3579, AA7556
Other flights arriving at Denver DEN: UA1001, UA453, WN2479, UA5666
All flights connecting Richmond RIC to Denver DEN.