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United Airlines

Is UA4397 delayed?

No — UA4397 landed in Chattanooga 38 min early, at 12:38 on Sep 29 (as of Sep 29, 16:39 UTC).

Usually on time: arrived within 15 min of schedule on 16 of the last 22 flights.

Arrived

38 min early

Official source · Updated

Departure

Chicago

ORD

Scheduled

Sep 29

Arrival

Chattanooga

CHA

Actual

Scheduled 13:16

Sep 29

Times shown in airport local time

Service date: · Scheduled departure date (America/Chicago)

Market settled: On time.

View this flight’s marketHow this market settles

Think UA4397 runs late on Sep 30? Delayed is trading at 22¢ — pays out x4.48.

Will United Airlines UAL 4397 from Chicago to Chattanooga arrive on time, be delayed, or be cancelled on Sep 30?
On timePays out x1.3276%DelayedPays out x4.4822%CancelledPays out x50.792%
$27 tradedDeparts Wed, Sep 30, 11:03 AM CDT
How this market settles
Flight details

Departure · UTC

Scheduled
Estimated
Not available
Actual
Not available

Arrival · UTC

Scheduled
Estimated
Not available
Actual
View this flight’s market

Market prices express trading expectations about a contract’s stated threshold. They do not confirm airline status. The linked market shows its terms and activity.

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

  • Chicago → Chattanooga

    38 min early

  • Chicago → Chattanooga

    28 min late

  • Chicago → Chattanooga

    143 min late

  • Chicago → Chattanooga

    23 min early

  • Chicago → Chattanooga

    23 min early

Is UA4397 usually late?

Observation window: Aug 31, 2026 – Sep 30, 2026

Observed arrivals
22
On time
73%
of 22 arrivals
Late
27%
of 22 arrivals
Cancelled
7%
of 28 flights
Median arrival delay
7 min early
9 in 10 arrived within
82 min

On time means arriving no more than 15 minutes after the scheduled time; late means more than 15 minutes after. Cancelled and diverted flights are counted apart from arrivals. Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

At the airports today

Chicago (ORD) departures

Left more than 15 min late
218 of 291
Cancelled today
3

Related flights

All United Airlines flights

Flight history and details
UA4397 Recent arrival history
Service dateDepartureArrivalActualArrival delay (minutes)
Sep 29, 2026ArrivedChicagoChattanooga
View this flight’s market
-38
Sep 28, 2026ArrivedChicagoChattanooga28
Sep 27, 2026ArrivedChicagoChattanooga143
Sep 26, 2026ArrivedChicagoChattanooga-23
Sep 25, 2026ArrivedChicagoChattanooga-23
Sep 24, 2026ArrivedChicagoChattanooga-10
Sep 23, 2026ArrivedChicagoChattanooga-30
Sep 22, 2026ArrivedChicagoChattanooga8
Sep 21, 2026ArrivedChicagoChattanooga0
Sep 20, 2026ArrivedChicagoChattanooga68
Sep 19, 2026CancelledChicagoChattanoogaNot availableNot available
Sep 18, 2026ArrivedChicagoChattanooga4
Sep 17, 2026ArrivedChicagoChattanooga159
Sep 16, 2026CancelledChicagoChattanoogaNot availableNot available
Sep 15, 2026ArrivedChicagoChattanooga84
Sep 12, 2026ArrivedChicagoChattanooga-22
Sep 11, 2026ArrivedChicagoChattanooga-15
Sep 10, 2026ArrivedChicagoChattanooga-10
Sep 9, 2026ArrivedChicagoChattanooga0
Sep 8, 2026ArrivedChicagoChattanooga-3
Sep 7, 2026ArrivedChicagoChattanooga-24
Sep 6, 2026ArrivedChicagoChattanooga-25
Sep 5, 2026ArrivedChicagoChattanooga-20
Sep 4, 2026ArrivedChicagoChattanooga51

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