UA310

UA310 (United Airlines) is a multi-stop service on 14 routes, busiest New Orleans to Chicago. Of 783 departures recorded from October 2024 to March 2026, 83.0% left on time, according to the US BTS.

Recorded departures by month

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

The most recent periods15 periods
PeriodDepartures 2025Departures 2026Change vs last year
January2931▲ 6.9%
February4428▼ 36.4%
March534▼ 92.5%
April56––
May66––
June72––
July61––
August60––
September59––
October58–in progress
November54––
December32––
Year to date (Jan–Mar)12663▼ 50.0%

according to the US BTS · October 2024 → March 2026

On-time departures by month

All legs combined

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

The most recent periods15 periods
PeriodOn time 2025On time 2026Change vs last year
January58.6%93.3%▲ 59.2%
February84.1%82.1%▼ 2.3%
March83.0%75.0%▼ 9.7%
April82.1%––
May87.9%––
June83.3%––
July70.5%––
August85.0%––
September88.1%––
October86.2%–in progress
November79.3%––
December71.9%––
Year-to-date average (Jan–Mar)75.2%83.5%▲ 11.0%

according to the US BTS · October 2024 → March 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → March 2026

Cancelled departures by month

All legs combined
The most recent periods15 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January01–
February00–
March00–
April0––
May0––
June0––
July0––
August0––
September0––
October0–in progress
November1––
December0––
Year to date (Jan–Mar)01

according to the US BTS · October 2024 → March 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 99.7% 781
  • Cancelled 0.3% 2

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Mar 4, 2026

On time, leg by leg

  1. MSY–ORD270 90.0%
  2. ORD–MCI200 76.0%
  3. RSW–ORD54 87.0%
  4. CMH–IAD53 84.6%
  5. CVG–ORD52 84.6%
  6. ORD–DEN37 67.6%
  7. ORD–DTW31 80.0%

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

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 20 20 100.0% 0
November 2024 30 30 93.3% 0
December 2024 26 26 88.5% 0
January 2025 29 29 58.6% 0
February 2025 44 44 84.1% 0
March 2025 53 53 83.0% 0
April 2025 56 56 82.1% 0
May 2025 66 66 87.9% 0
June 2025 72 72 83.3% 0
July 2025 61 61 70.5% 0
August 2025 60 60 85.0% 0
September 2025 59 59 88.1% 0
October 2025 58 58 86.2% 0
November 2025 54 53 79.3% 1
December 2025 32 32 71.9% 0
January 2026 31 30 93.3% 1
February 2026 28 28 82.1% 0
March 2026 4 4 75.0% 0

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