Flight UA308
United Airlines flight UA308
Looking for UA308 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
Philadelphia (PHL) to Chicago (ORD)
Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 100 minutes. It was cancelled 0.3% of the time.
- On-time arrivals
- 60.9%
- Less than 15 minutes late
- Cancelled
- 0.3%
- Of scheduled flights
- Average delay when late
- 100 min
- Flights arriving 15+ minutes late
- Flights tracked
- 297
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 71%
- Late-arriving aircraft 14%
- Airline (crew, maintenance, cleaning) 10%
- Extreme weather 5%
- 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 20% of the time, and when it is late the delay averages 33 minutes. It was cancelled 0.9% of the time.
- On-time arrivals
- 80.2%
- Less than 15 minutes late
- Cancelled
- 0.9%
- Of scheduled flights
- Average delay when late
- 33 min
- Flights arriving 15+ minutes late
- Flights tracked
- 226
- Scheduled flights in the period
What caused the delays
- Airline (crew, maintenance, cleaning) 40%
- Air traffic control & airport 30%
- Late-arriving aircraft 24%
- Extreme weather 6%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to New York (LGA)
Historically, this flight arrives 15+ minutes late 56% of the time, and when it is late the delay averages 104 minutes. It was cancelled 5.6% of the time.
- On-time arrivals
- 44.1%
- Less than 15 minutes late
- Cancelled
- 5.6%
- Of scheduled flights
- Average delay when late
- 104 min
- Flights arriving 15+ minutes late
- Flights tracked
- 36
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 42%
- Air traffic control & airport 42%
- Airline (crew, maintenance, cleaning) 12%
- Extreme weather 4%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Ontario (ONT)
Historically, this flight arrives 15+ minutes late 19% of the time, and when it is late the delay averages 52 minutes. It was cancelled 0.0% of the time.
- On-time arrivals
- 80.8%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 52 min
- Flights arriving 15+ minutes late
- Flights tracked
- 26
- Scheduled flights in the period
What caused the delays
- Air traffic control & airport 40%
- Airline (crew, maintenance, cleaning) 35%
- Late-arriving aircraft 25%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Chicago (ORD) to Cincinnati / Covington (CVG)
Only 18 flights on record, which is too few for reliable odds.
- On-time arrivals
- 61.1%
- Less than 15 minutes late
- Cancelled
- 0.0%
- Of scheduled flights
- Average delay when late
- 46 min
- Flights arriving 15+ minutes late
- Flights tracked
- 18
- Scheduled flights in the period
What caused the delays
- Late-arriving aircraft 77%
- Airline (crew, maintenance, cleaning) 23%
- Air traffic control & airport 0%
- Extreme weather 0%
- Security 0%
Share of delay minutes airlines attributed to each cause (BTS).
Jackson (JAC) to Houston (IAH)
Only 5 flights 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
- 5
- Scheduled flights in the period
Dulles (IAD) to Fort Myers (RSW)
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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Headlines found by Google News; stories open on the publisher's site.
Show as table
| Month | On time | Flights |
|---|---|---|
| September 2025 | 61.5% | 53 |
| October 2025 | 58.6% | 58 |
| November 2025 | 57.1% | 30 |
| December 2025 | 69.1% | 57 |
| January 2026 | 80.0% | 35 |
| February 2026 | 83.3% | 42 |
| March 2026 | 70.3% | 38 |
| April 2026 | 80.0% | 56 |
| May 2026 | 84.2% | 59 |
| June 2026 | 63.8% | 60 |
| July 2026 | 61.7% | 62 |
| August 2026 | 53.4% | 59 |
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