Flight number record

UA 224

United Airlines · Chicago to Bozeman

Route: ORD → BZN
Departs: 09:15
Flights: 272
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 224, check with United Airlines.

UA 224 lands a B+, about a point better than the national rate of 77.6%. About one flight in five arrives 15 minutes late or worse, and those flights are late by roughly 45 minutes on average. That is a workable record, not a spotless one. That rests on 272 flights, with a median arrival 2 minutes early.

On time

78.4%

Arrivals under 15 minutes late, of 269 completed flights

Avg delay

43 min

Across delayed arrivals only, not all flights

Cancelled

0.74%

National rate is 1.81%

1 hour+ late

4.1%

National rate is 8.1%

These figures cover 272 flights between July 2025 and June 2026. The median arrival is 2 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.

Schedule

When UA 224 flies

UA 224 flies ORD to BZN without a single fixed slot. Its most common scheduled departure was 09:15, used on 68 of 272 flights, with 09:10 (61 flights) and 09:20 (43 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:1568 flights25.0%
Departs 09:1061 flights22.4%
Departs 09:2043 flights15.8%

Scale runs 0% to 100%. Rows with fewer than 30 flights show a dash.

Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.

A 09:15 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 224 runs 6 points worse at 78.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Against the route

UA 224 next to ORD to BZN

Every carrier on ORD to BZN combined arrived on time 67.4% of the time across 1,256 flights, so UA 224 is 11 points ahead of it. United flew 658 flights on the same city pair under all its flight numbers, including this one, and those ran 69.6% on time. Across its whole network United Airlines managed 79.0%, close to this flight's figure.

UA 224 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 224thin sample	272	78.4%	43 min	0.74%	B+
All United Airlines on ORD–BZN	658	69.6%	64 min	1.06%	C
All carriers on ORD–BZN	1,256	67.4%	63 min	0.72%	C+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 224 quarter by quarter

UA 224 did not run the same all year. Its best quarter was Apr–Jun 2026 at 84.4% on time and its weakest Jan–Mar 2026 at 67.2%, a swing of 17 points on roughly 68 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.

Jul–Sep 202555 flights75.9%
Oct–Dec 202562 flights83.6%
Jan–Mar 202664 flights67.2%
Apr–Jun 202691 flights84.4%

Scale runs 60% to 90%. Rows with fewer than 30 flights show a dash.

By weekday, UA 224 did best on Thursday at 87.2% on time and worst on Friday at 65.8%. Each day rests on about 39 flights, so a gap of 21 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 224 runs late

Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 2,480 reported delay minutes.

National Airspace System
37%
Carrier
31%
Late-arriving aircraft
29%
Extreme weather
3%

37% of delay minutes are charged to the National Airspace System: air traffic volume, runway configuration, ground stops. No carrier can price its way out of that, which is why airport choice moves the number here more than carrier choice does. That is 913 minutes out of 2,480, against a national NAS share of 21%. The split is drawn from 2,480 delay minutes reported on UA 224.

Cancellations are rare at 0.74%, below the national 1.81% and low enough to earn the plus on the grade. Roughly one flight in 100 is called off; the risk here is arriving late, not not arriving.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.1% land an hour or more behind schedule, against 8.1% nationally. Connections built on this flight are about as safe as US domestic connections get, though a cancelled flight still ignores every layover you give it.

The 1,185 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The same number turns up on six other city pairs in the data, including RIC to ORD (149), BWI to ORD (86) and SAN to IAH (21), but none flew often enough under UA 224 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to ORD to BZN only.

One caution: this is a thin sample. 272 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.

What to do with this

Booking UA 224

For a booking, read UA 224 as 78.4% on time with 0.74% cancelled over 272 flights. Those are rates from the past twelve months, not a forecast for any particular day.

Where to go next

A flight number here means United Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.

Source: US DOT Bureau of Transportation Statistics, on-time performance data, July 2025 to June 2026. Last updated 15 September 2026; recomputed monthly. How this data is collected.

Key figures