| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| May 20 | SNA | DEN | 11:12 | 14:06 |
Landed
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| May 19 | SNA | DEN | 11:06 | 13:49 |
Landed
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| May 18 | SNA | DEN | 11:28 | 14:16 |
Landed
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| May 17 | SNA | DEN | 11:14 | 14:35 |
Landed
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| May 16 | SNA | DEN | 11:13 | 14:20 |
Landed
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| May 15 | SNA | DEN | 11:13 | 14:06 |
Landed
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| May 14 | SNA | DEN | 11:38 | 14:29 |
Landed
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| May 13 | SNA | DEN | 13:16 | 16:06 |
Delayed
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| May 12 | SNA | DEN | 11:10 | 14:04 |
Landed
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| May 11 | SNA | DEN | 11:23 | 14:15 |
Landed
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United Airlines Flight UA421 connects Orange County, United States to Denver, United States, taking off from Orange County John Wayne Airport SNA and landing at Denver International Airport DEN.
How long is the UA421 flight from Orange County to Denver?
The average flight time from Orange County to Denver is 1 hour and 55 minutes. The flight distance is 1360 km / 845 miles and the average flight speed is 713 km/h / 443 mph.
What is the On-Time Performance (OTP) of United Airlines Flight UA421 Orange County to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA421 is 4.8/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA421 flight?
The latest flight took off on Wednesday, May 20th, 2026 with the flight status being Landed on 14:06.
How else can the flight UA421 be referenced as?
This United Airlines flight can also be referenced as UAL421, UA0421, UA 421, UAL 421.
How often is flight UA421 delayed?
On average, 30% of all UA421 flights are delayed. The average delay is 39 minutes.
Can I get compensation for my delayed or cancelled UA421 flight or baggage issues?
If your UA421 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 UA421 Flight Tracker above for more details.
Flight UA421 is code-shared by 2 airlines using the flight numbers AC3583, LH7759
Other flights departing from Orange County SNA: AA3208, WN4378, UA5805, WN4272
Other flights arriving at Denver DEN: UA1067, WN3895, UA5418, OO5492
All flights connecting Orange County SNA to Denver DEN.