Flight number record

UA 2617

United Airlines · New York to Houston

Route: LGA → IAH
Departs: 09:55
Flights: 326
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2617, check with United Airlines.

UA 2617 earns a B. More than four flights in five arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 7 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 326 flights, with a median arrival 14 minutes early.

Set against the rest of the country, UA 2617's record is 7 points better than the US average of 77.6%. That gap is worth roughly 73 fewer late arrivals for every thousand flights.

On time

84.9%

Arrivals under 15 minutes late, of 317 completed flights

Avg delay

106 min

Across delayed arrivals only, not all flights

Cancelled

2.76%

National rate is 1.81%

1 hour+ late

6.3%

National rate is 8.1%

These figures cover 326 flights between July 2025 and June 2026. The median arrival is 14 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 2617 flies

UA 2617 flies LGA to IAH without a single fixed slot. Its most common scheduled departure was 09:55, used on 213 of 326 flights, with 10:00 (48 flights) and 10:15 (41 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 09:55213 flights65.3%
Departs 10:0048 flights14.7%
Departs 10:1541 flights12.6%

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 09:55 departure sits in the 8am–11am window. Across every US flight scheduled in that window the on-time rate is 84.1%, and UA 2617 runs level with that at 84.9%. 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 2617 next to LGA to IAH

Every carrier on LGA to IAH combined arrived on time 76.5% of the time across 4,060 flights, so UA 2617 is 8 points ahead of it. United flew 2,382 flights on the same city pair under all its flight numbers, including this one, and those ran 77.1% on time. Across its whole network United Airlines managed 79.0%, which this flight beats by 6 points.

UA 2617 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2617thin sample	326	84.9%	106 min	2.76%	B
All United Airlines on LGA–IAH	2,382	77.1%	87 min	1.76%	B
All carriers on LGA–IAH	4,060	76.5%	85 min	2.59%	B
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2617 quarter by quarter

UA 2617 did not run the same all year. Its best quarter was Jan–Mar 2026 at 94.4% on time and its weakest Apr–Jun 2026 at 75.9%, a swing of 19 points on roughly 82 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 202591 flights88.9%
Oct–Dec 202569 flights80.9%
Jan–Mar 202679 flights94.4%
Apr–Jun 202687 flights75.9%

Scale runs 65% to 100%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2617 did best on Friday at 93.9% on time and worst on Saturday at 80.0%. Each day rests on about 47 flights, so a gap of 14 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2617 runs late

One category carries most of the weight here. Carrier accounts for 55% of the 5,108 delay minutes carriers reported, and the remaining four split what is left. The split is by minutes rather than by flights, so a few very long delays count for as much as many short ones.

Carrier
55%
National Airspace System
25%
Late-arriving aircraft
16%
Extreme weather
3%

The largest share of delay minutes, 55%, 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 2,827 of the 5,108 delay minutes reported here. The split is drawn from 5,108 delay minutes reported on UA 2617.

Cancellations run at 2.76%, against 1.81% nationally. That is roughly one flight in 40 cancelled outright. A cancelled flight is invisible in every on-time figure on this page, so the punctuality numbers above describe only the flights that actually operated.

Connections and routes

What a delay on this flight costs

6.3% of arrivals land an hour or more late, close to the national 8.1%. That is the figure that decides a connection, and it says a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last close to two hours, which a normal layover absorbs.

The 1,416 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 ORD to LGA (55), IAH to PHX (35) and IAH to SAN (21), but none flew often enough under UA 2617 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to LGA to IAH only.

One caution: this is a thin sample. 326 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 2617

For a booking, the cancellation rate is the figure to plan around on UA 2617: 2.76% of its 326 scheduled flights did not operate. A late arrival costs close to two hours, but a cancellation costs the day, so leave a later option open.

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