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Flight UA1998

United Airlines flight UA1998

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

    COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY

    Weather

Phoenix (PHX) to Denver (DEN)

Historically, this flight arrives 15+ minutes late 9% of the time, and when it is late the delay averages 83 minutes. It was cancelled 0.0% of the time.

On-time arrivals
91.4%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
83 min
Flights arriving 15+ minutes late
Flights tracked
81
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 85%
  • Airline (crew, maintenance, cleaning) 10%
  • Late-arriving aircraft 5%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Eagle (EGE)

Historically, this flight arrives 15+ minutes late 39% of the time, and when it is late the delay averages 78 minutes. It was cancelled 2.1% of the time.

On-time arrivals
60.9%
Less than 15 minutes late
Cancelled
2.1%
Of scheduled flights
Average delay when late
78 min
Flights arriving 15+ minutes late
Flights tracked
47
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 52%
  • Airline (crew, maintenance, cleaning) 29%
  • Air traffic control & airport 12%
  • Extreme weather 6%
  • Security 0%

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

Newark (EWR) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 57% of the time, and when it is late the delay averages 106 minutes. It was cancelled 14.6% of the time.

On-time arrivals
42.9%
Less than 15 minutes late
Cancelled
14.6%
Of scheduled flights
Average delay when late
106 min
Flights arriving 15+ minutes late
Flights tracked
41
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 50%
  • Air traffic control & airport 46%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Dulles (IAD) to Minneapolis (MSP)

Historically, this flight arrives 15+ minutes late 12% of the time, and when it is late the delay averages 52 minutes. It was cancelled 0.0% of the time.

On-time arrivals
87.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
52 min
Flights arriving 15+ minutes late
Flights tracked
41
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 67%
  • Late-arriving aircraft 33%
  • Airline (crew, maintenance, cleaning) 0%
  • Extreme weather 0%
  • Security 0%

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

Portland (PDX) to San Francisco (SFO)

Historically, this flight arrives 15+ minutes late 35% of the time, and when it is late the delay averages 43 minutes. It was cancelled 0.0% of the time.

On-time arrivals
64.7%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
43 min
Flights arriving 15+ minutes late
Flights tracked
34
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 96%
  • Extreme weather 4%
  • Airline (crew, maintenance, cleaning) 0%
  • Late-arriving aircraft 0%
  • Security 0%

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

Chicago (ORD) to Columbus (CMH)

Historically, this flight arrives 15+ minutes late 26% of the time, and when it is late the delay averages 70 minutes. It was cancelled 4.2% of the time.

On-time arrivals
73.9%
Less than 15 minutes late
Cancelled
4.2%
Of scheduled flights
Average delay when late
70 min
Flights arriving 15+ minutes late
Flights tracked
24
Scheduled flights in the period

What caused the delays

  • Late-arriving aircraft 63%
  • Airline (crew, maintenance, cleaning) 22%
  • Air traffic control & airport 15%
  • Extreme weather 0%
  • Security 0%

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

Dulles (IAD) to Newark (EWR)

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

New York (LGA) to Chicago (ORD)

Historically, this flight arrives 15+ minutes late 53% of the time, and when it is late the delay averages 103 minutes. It was cancelled 9.5% of the time.

On-time arrivals
47.4%
Less than 15 minutes late
Cancelled
9.5%
Of scheduled flights
Average delay when late
103 min
Flights arriving 15+ minutes late
Flights tracked
21
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 52%
  • Late-arriving aircraft 31%
  • Airline (crew, maintenance, cleaning) 18%
  • Extreme weather 0%
  • Security 0%

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

Houston (IAH) to New York (LGA)

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

On-time arrivals
68.8%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
118 min
Flights arriving 15+ minutes late
Flights tracked
16
Scheduled flights in the period

What caused the delays

  • Air traffic control & airport 54%
  • Late-arriving aircraft 42%
  • Airline (crew, maintenance, cleaning) 4%
  • Extreme weather 0%
  • Security 0%

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

Chicago (ORD) to Los Angeles (LAX)

Only 3 flights on record, which is too few for reliable odds.

On-time arrivals
50.0%
Less than 15 minutes late
Cancelled
0.0%
Of scheduled flights
Average delay when late
50 min
Flights arriving 15+ minutes late
Flights tracked
3
Scheduled flights in the period

What caused the delays

  • Airline (crew, maintenance, cleaning) 100%
  • Late-arriving aircraft 0%
  • Air traffic control & airport 0%
  • Extreme weather 0%
  • Security 0%

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

In the news

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On-time arrivals by month
Sep 2025 Aug 2026
Show as table
MonthOn timeFlights
September 2025 75.0% 20
October 2025 65.0% 20
November 2025 85.7% 21
December 2025 61.3% 31
January 2026 60.9% 24
February 2026 76.9% 26
March 2026 80.0% 31
April 2026 100.0% 30
May 2026 62.5% 34
June 2026 86.7% 30
July 2026 48.1% 31
August 2026 79.3% 31

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.