Flight number record

UA 2174

United Airlines · Houston to Nashville

Route: IAH → BNA
Departs: 07:35
Flights: 262
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2174, check with United Airlines.

UA 2174 earns an A+. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 9 points better than the national rate of 77.6%. When something does go wrong the average delay runs roughly 40 minutes. That rests on 262 flights, with a median arrival 5 minutes early.

Set against the rest of the country, UA 2174's record is 9 points better than the US average of 77.6%. That gap is worth roughly 85 fewer late arrivals for every thousand flights.

On time

86.1%

Arrivals under 15 minutes late, of 259 completed flights

Avg delay

42 min

Across delayed arrivals only, not all flights

Cancelled

0.38%

National rate is 1.81%

1 hour+ late

3.1%

National rate is 8.1%

These figures cover 262 flights between July 2025 and June 2026. The median arrival is 5 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 2174 flies

UA 2174 flies IAH to BNA without a single fixed slot. Its most common scheduled departure was 07:35, used on 119 of 262 flights, with 07:30 (58 flights) and 07:40 (40 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:35119 flights45.4%
Departs 07:3058 flights22.1%
Departs 07:4040 flights15.3%

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 07:35 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 2174 runs 3 points worse at 86.1%. 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 2174 next to IAH to BNA

Every carrier on IAH to BNA combined arrived on time 72.2% of the time across 1,405 flights, so UA 2174 is 14 points ahead of it. United flew 998 flights on the same city pair under all its flight numbers, including this one, and those ran 73.9% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 7 points.

UA 2174 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2174thin sample	262	86.1%	42 min	0.38%	A+
All United Airlines on IAH–BNA	998	73.9%	61 min	0.50%	C+
All carriers on IAH–BNA	1,405	72.2%	66 min	0.71%	C+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2174 quarter by quarter

UA 2174 did not run the same all year. Its best quarter was Jan–Mar 2026 at 89.2% on time and its weakest Apr–Jun 2026 at 76.3%, a swing of 13 points on roughly 66 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 202583 flights87.8%
Oct–Dec 202574 flights86.5%
Jan–Mar 202666 flights89.2%
Apr–Jun 202639 flights76.3%

Scale runs 70% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2174 did best on Friday at 92.3% on time and worst on Sunday at 77.5%. Each day rests on about 37 flights, so a gap of 15 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2174 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 1,497 reported delay minutes.

Carrier
37%
National Airspace System
34%
Late-arriving aircraft
29%

The largest share of delay minutes, 37%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. Unlike weather, that is a management outcome, and it is the category where the gap between two carriers on the same schedule is genuinely earned. It accounts for 554 of the 1,497 delay minutes reported here. The split is drawn from 1,497 delay minutes reported on UA 2174.

Cancellations are rare at 0.38%, 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 3.1% 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 657 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 BNA to EWR (41), PBI to IAD (32) and MCI to IAH (19), but none flew often enough under UA 2174 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to BNA only.

One caution: this is a thin sample. 262 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 2174

For a booking, UA 2174 has one of the better records a US domestic flight can show: 86.1% on time and 0.38% cancelled. That is a base rate, not a promise about any single 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