| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 01 | SJC | DEN | 10:45 | 14:22 |
Scheduled
|
Track > |
United Airlines Flight UA421 connects San Jose, United States to Denver, United States, taking off from San Jose International Airport SJC and landing at Denver International Airport DEN.
How many UA421 flights are operated per week?
1 flight per week. The flight UA421 is operated on Thursday.
What is the On-Time Performance (OTP) of United Airlines Flight UA421 San Jose to Denver?
The Airportia On-Time Performance Rating for United Airlines Flight UA421 is 5/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest UA421 flight?
The latest flight took off on Thursday, October 1st, 2026 with the flight status being Scheduled on 14:22.
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, 0% of all UA421 flights are delayed. The average delay is 0 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 AC4173, LH8915
Other flights departing from San Jose SJC: AS1311, WN1699, WN3686
Other flights arriving at Denver DEN: UA683, UA2061, UA1604, UA1429
All flights connecting San Jose SJC to Denver DEN.