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Flight UA1800

United Airlines flight UA1800

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Looking for UA1800 in the air…

  • Advisory Coastal Flood Statement FLL

    COASTAL FLOOD STATEMENT NOW IN EFFECT THROUGH THURSDAY EVENING

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  • Advisory Coastal Flood Advisory OAK, SFO, SQL, STS

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

San Francisco (SFO) to Los Angeles (LAX)

Historically, this flight arrives 15+ minutes late 21% of the time, and when it is late the delay averages 50 minutes. It was cancelled 0.5% of the time.

On-time arrivals
78.9%
Less than 15 minutes late
Cancelled
0.5%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
205
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 46%
  • Air traffic control & airport 37%
  • Airline (crew, maintenance, cleaning) 17%
  • Extreme weather 0%
  • Security 0%

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

Los Angeles (LAX) to Cleveland (CLE)

Historically, this flight arrives 15+ minutes late 8% of the time, and when it is late the delay averages 77 minutes. It was cancelled 0.9% of the time.

On-time arrivals
91.8%
Less than 15 minutes late
Cancelled
0.9%
Of scheduled flights
Average delay when late
77 min
Flights arriving 15+ minutes late
Flights tracked
111
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 53%
  • Late-arriving aircraft 42%
  • Air traffic control & airport 5%
  • Extreme weather 0%
  • Security 0%

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

Fort Lauderdale (FLL) to Newark (EWR)

Historically, this flight arrives 15+ minutes late 46% of the time, and when it is late the delay averages 104 minutes. It was cancelled 4.5% of the time.

On-time arrivals
54.1%
Less than 15 minutes late
Cancelled
4.5%
Of scheduled flights
Average delay when late
104 min
Flights arriving 15+ minutes late
Flights tracked
67
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 66%
  • Late-arriving aircraft 27%
  • Airline (crew, maintenance, cleaning) 5%
  • Extreme weather 1%
  • Security 0%

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

Newark (EWR) to Las Vegas (LAS)

Historically, this flight arrives 15+ minutes late 43% of the time, and when it is late the delay averages 83 minutes. It was cancelled 8.7% of the time.

On-time arrivals
57.1%
Less than 15 minutes late
Cancelled
8.7%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
46
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 41%
  • Airline (crew, maintenance, cleaning) 29%
  • Extreme weather 16%
  • Air traffic control & airport 14%
  • Security 0%

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

Chicago (ORD) to Boston (BOS)

Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 82 minutes. It was cancelled 2.9% of the time.

On-time arrivals
60.6%
Less than 15 minutes late
Cancelled
2.9%
Of scheduled flights
Average delay when late
82 min
Flights arriving 15+ minutes late
Flights tracked
34
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 54%
  • Air traffic control & airport 23%
  • Airline (crew, maintenance, cleaning) 21%
  • Extreme weather 2%
  • Security 0%

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

Los Angeles (LAX) to Tampa (TPA)

Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.

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
31
Scheduled flights in the period

Portland (PDX) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 24% of the time, and when it is late the delay averages 30 minutes. It was cancelled 0.0% of the time.

On-time arrivals
76.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
30 min
Flights arriving 15+ minutes late
Flights tracked
25
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 79%
  • Late-arriving aircraft 18%
  • Airline (crew, maintenance, cleaning) 3%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 0% of the time. It was cancelled 0.0% of the time.

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
21
Scheduled flights in the period

Los Angeles (LAX) to Fort Myers (RSW)

Only 10 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
10
Scheduled flights in the period

Phoenix (PHX) to Los Angeles (LAX)

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
—
Flights arriving 15+ minutes late
Flights tracked
5
Scheduled flights in the period

San Jose (SJC) to Denver (DEN)

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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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 86.1% 36
October 2025 86.2% 87
November 2025 81.0% 58
December 2025 73.3% 60
January 2026 90.2% 43
February 2026 77.4% 31
March 2026 93.6% 48
April 2026 100.0% 26
May 2026 96.7% 30
June 2026 51.4% 36
July 2026 60.8% 60
August 2026 47.5% 41

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

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