UA618

UA618 (United Airlines) is a multi-stop service on 25 routes, busiest Newark to San Francisco. Of 642 departures recorded from October 2024 to July 2026, 79.9% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

Months without data are left blank.

The most recent periods16 periods
PeriodDepartures 2025Departures 2026Change vs last year
January5633▼ 41.1%
February4028▼ 30.0%
March3331▼ 6.1%
April6030▼ 50.0%
May4931▼ 36.7%
June2530▲ 20.0%
July–31–
August–––
September–––
October6–in progress
November25––
December31––

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

Months without data are left blank.

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods16 periods
PeriodOn time 2025On time 2026Change vs last year
January94.6%97.0%▲ 2.5%
February85.0%78.6%▼ 7.6%
March78.8%74.2%▼ 5.8%
April76.7%86.7%▲ 13.0%
May65.3%83.9%▲ 28.4%
June96.0%73.3%▼ 23.6%
July–61.3%–
August–––
September–––
October83.3%–in progress
November79.2%––
December77.4%––

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

Months without data are left blank.

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined

Months without data are left blank.

The most recent periods16 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January00–
February00–
March00–
April00–
May00–
June00–
July–0–
August–––
September–––
October0–in progress
November1––
December0––

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 99.8% 641
  • Cancelled 0.2% 1

Share of all recorded flights in the period, all legs. · Oct 27, 2024 → Jul 31, 2026

On time, leg by leg

  1. EWR–SFO90 91.1%
  2. SAN–IAH71 67.6%
  3. SFO–DEN37 73.0%
  4. RDU–EWR37 94.6%
  5. FLL–DEN36 97.2%
  6. BWI–LAX35 94.3%
  7. PHL–DEN32 78.1%
  8. ORD–BOS32 80.7%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

10
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 10 10 90.0% 0
November 2024 60 60 80.0% 0
December 2024 33 33 66.7% 0
January 2025 56 56 94.6% 0
February 2025 40 40 85.0% 0
March 2025 33 33 78.8% 0
April 2025 60 60 76.7% 0
May 2025 49 49 65.3% 0
June 2025 25 25 96.0% 0
October 2025 6 6 83.3% 0
November 2025 25 24 79.2% 1
December 2025 31 31 77.4% 0
January 2026 33 33 97.0% 0
February 2026 28 28 78.6% 0
March 2026 31 31 74.2% 0
April 2026 30 30 86.7% 0
May 2026 31 31 83.9% 0
June 2026 30 30 73.3% 0
July 2026 31 31 61.3% 0

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