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Flight UA661

United Airlines flight UA661

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  • Advisory Airport Closure SNA

    Airport Closure at John Wayne Orange County International Airport (SNA): Reopens Nov 08 at 14:15 UTC.

    Airport status

  • Advisory Coastal Flood Advisory CLD, SAN, SNA

    COASTAL FLOOD ADVISORY IN EFFECT FROM 4 AM FRIDAY TO NOON PST TUESDAY

    Weather

Newark (EWR) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 52% of the time, and when it is late the delay averages 80 minutes. It was cancelled 4.3% of the time.

On-time arrivals
47.6%
Less than 15 minutes late
Cancelled
4.3%
Of scheduled flights
Average delay when late
80 min
Flights arriving 15+ minutes late
Flights tracked
346
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 53%
  • Airline (crew, maintenance, cleaning) 24%
  • Late-arriving aircraft 21%
  • Extreme weather 1%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 36% of the time, and when it is late the delay averages 82 minutes. It was cancelled 0.5% of the time.

On-time arrivals
63.6%
Less than 15 minutes late
Cancelled
0.5%
Of scheduled flights
Average delay when late
82 min
Flights arriving 15+ minutes late
Flights tracked
199
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 38%
  • Airline (crew, maintenance, cleaning) 32%
  • Air traffic control & airport 15%
  • Extreme weather 15%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Santa Ana (SNA) to Newark (EWR)

Historically, this flight arrives 15+ minutes late 10% of the time, and when it is late the delay averages 83 minutes. It was cancelled 1.7% of the time.

On-time arrivals
90.4%
Less than 15 minutes late
Cancelled
1.7%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
178
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 42%
  • Airline (crew, maintenance, cleaning) 40%
  • Air traffic control & airport 16%
  • Extreme weather 1%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Fresno (FAT)

Historically, this flight arrives 15+ minutes late 38% of the time, and when it is late the delay averages 49 minutes. It was cancelled 0.0% of the time.

On-time arrivals
61.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
49 min
Flights arriving 15+ minutes late
Flights tracked
26
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 38%
  • Late-arriving aircraft 33%
  • Air traffic control & airport 29%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Des Moines (DSM)

Historically, this flight arrives 15+ minutes late 17% of the time, and when it is late the delay averages 75 minutes. It was cancelled 0.0% of the time.

On-time arrivals
83.3%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
75 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 71%
  • Airline (crew, maintenance, cleaning) 29%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Chicago (ORD) to Indianapolis (IND)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 89 minutes. It was cancelled 4.8% of the time.

On-time arrivals
65.0%
Less than 15 minutes late
Cancelled
4.8%
Of scheduled flights
Average delay when late
89 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 55%
  • Airline (crew, maintenance, cleaning) 24%
  • Air traffic control & airport 22%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Tampa (TPA) to Newark (EWR)

Only 19 flights on record, which is too few for reliable odds.

On-time arrivals
63.2%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
35 min
Flights arriving 15+ minutes late
Flights tracked
19
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 62%
  • Airline (crew, maintenance, cleaning) 32%
  • Air traffic control & airport 6%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Pittsburgh (PIT) to Chicago (ORD)

Only 16 flights on record, which is too few for reliable odds.

On-time arrivals
37.5%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 57%
  • Late-arriving aircraft 41%
  • Airline (crew, maintenance, cleaning) 2%
  • Extreme weather 0%
  • Security 0%

Share of delay minutes airlines attributed to each cause (BTS).

Seattle (SEA) to Newark (EWR)

Only 6 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
—
Flights arriving 15+ minutes late
Flights tracked
6
Scheduled flights in the period

Myrtle Beach (MYR) to Newark (EWR)

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
—
Flights arriving 15+ minutes late
Flights tracked
1
Scheduled flights in the period

In the news

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Headlines found by Google News; stories open on the publisher's site.

On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 71.7% 60
October 2025 60.9% 64
November 2025 52.6% 58
December 2025 57.9% 76
January 2026 58.5% 54
February 2026 70.2% 59
March 2026 56.8% 83
April 2026 65.5% 86
May 2026 77.6% 70
June 2026 63.8% 60
July 2026 58.3% 81
August 2026 62.8% 85

Source: U.S. DOT Bureau of Transportation Statistics on-time data, September 2025 – August 2026. Covers flights operated by reporting U.S. carriers. About our data

Latest airport & airline headlines

More headlines →

Headlines found by Google News; stories open on the publisher's site.