Flight UA490
United Airlines flight UA490
Looking for UA490 in the airâŚ
Alerts at this flight's airports
-
Advisory Airport Closure SNA
Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.
Airport status
Chicago (ORD) to San Antonio (SAT)
Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 57 minutes. It was cancelled 0.3% of the time.
- On-time arrivals
- 82.9%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 57 min
- Flights arriving 15+ minutes late
- Flights tracked
- 293
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 40%
- Late-arriving aircraft 34%
- Airline (crew, maintenance, cleaning) 23%
- Extreme weather 3%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Cleveland (CLE) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 15% of the time, and when it is late the delay averages 71 minutes. It was cancelled 0.7% of the time.
- On-time arrivals
- 84.5%
- Less than 15 minutes late
- Cancelled
- 0.7%
- Of scheduled flights
- Average delay when late
- 71 min
- Flights arriving 15+ minutes late
- Flights tracked
- 267
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 89%
- Late-arriving aircraft 9%
- Airline (crew, maintenance, cleaning) 1%
- Extreme weather 1%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
San Antonio (SAT) to Denver (DEN)
Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 91 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 87.9%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 91 min
- Flights arriving 15+ minutes late
- Flights tracked
- 92
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 54%
- Late-arriving aircraft 38%
- Airline (crew, maintenance, cleaning) 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Santa Ana (SNA)
Historically, this flight arrives 15+ minutes late 14% of the time, and when it is late the delay averages 49 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 85.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 49 min
- Flights arriving 15+ minutes late
- Flights tracked
- 35
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 54%
- Airline (crew, maintenance, cleaning) 21%
- Extreme weather 19%
- Late-arriving aircraft 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Washington (DCA)
Historically, this flight arrives 15+ minutes late 23% of the time, and when it is late the delay averages 93 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 76.7%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 93 min
- Flights arriving 15+ minutes late
- Flights tracked
- 30
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 64%
- Air traffic control & airport 28%
- Airline (crew, maintenance, cleaning) 9%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Nashville (BNA) to San Francisco (SFO)
Only 1 flight on record, which is too few for reliable odds.
- On-time arrivals
- 100.0%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- â
- Flights arriving 15+ minutes late
- Flights tracked
- 1
- Scheduled flights in the period
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Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 86.4% | 60 |
| October 2025 | 98.2% | 56 |
| November 2025 | 82.8% | 29 |
| December 2025 | 80.5% | 77 |
| January 2026 | 84.5% | 58 |
| February 2026 | 88.7% | 71 |
| March 2026 | 87.9% | 66 |
| April 2026 | 76.7% | 60 |
| May 2026 | 78.3% | 60 |
| June 2026 | 87.5% | 57 |
| July 2026 | 81.7% | 62 |
| August 2026 | 75.8% | 62 |
Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 â August 2026. Covers flights operated by reporting U.S. carriers. About our data