Flight number record

UA 2617

United Airlines · New York to Houston

Route: LGA → IAH
Departs: 09:55
Flights: 326
Period: September 2025 to August 2026

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

UA 2617 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 8 points better than the national rate of 77.3%. When something does go wrong the average delay runs an hour and a half. That rests on 326 flights, with a median arrival 15 minutes early.

Set against the rest of the country, UA 2617's record is 8 points better than the US average of 77.3%. That gap is worth roughly 81 fewer late arrivals for every thousand flights.

On time

85.4%

Arrivals under 15 minutes late, of 314 completed flights

Avg delay

92 min

Across delayed arrivals only, not all flights

Cancelled

3.07%

National rate is 1.89%

1 hour+ late

5.7%

National rate is 8.3%

These figures cover 326 flights between September 2025 and August 2026. The median arrival is 15 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.

Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

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 151 of 326 flights, with 10:15 (81 flights) and 10:00 (48 flights) next.

Departs 09:55151 flights46.3%
Departs 10:1581 flights24.8%
Departs 10:0048 flights14.7%

Scale runs 0% to 100%.

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 83.9%, and UA 2617 runs level with that at 85.4%. Early departures usually start with an aircraft that has not flown yet that day, which is most of why the window does well.

Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.

Against the route

UA 2617 next to LGA to IAH

Every carrier on LGA to IAH combined arrived on time 76.2% of the time across 3,997 flights, so UA 2617 is 9 points ahead of it. United flew 2,376 flights on the same city pair under all its flight numbers, including this one, and those ran 77.4% on time. Across its whole network United Airlines managed 78.8%, which this flight beats by 7 points.

UA 2617 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2617thin sample	326	85.4%	92 min	3.07%	A−
All United Airlines on LGA–IAH	2,376	77.4%	88 min	1.77%	B
All carriers on LGA–IAH	3,997	76.2%	86 min	2.88%	B
United Airlines, whole network	830,825	78.8%	73 min	1.02%	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 202529 flights—
Oct–Dec 202569 flights80.9%
Jan–Mar 202679 flights94.4%
Apr–Jun 202687 flights75.9%
Jul–Sep 202662 flights87.9%

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

By weekday, UA 2617 did best on Friday at 93.8% on time and worst on Saturday at 77.8%. Each day rests on about 47 flights, so a gap of 16 points is worth noticing but could still narrow in another year.

Arrival by arrival

How late UA 2617 runs when it is late

UA 2617 often beats the schedule: 165 of 314 completed flights, 53%, arrived 15 minutes or more early. The 46 late arrivals split 18 under half an hour, 10 between 30 and 60 minutes, and 18 an hour or more.

15+ min early165 flights52.5%
Within 15 min103 flights32.8%
15–29 min late18 flights5.7%
30–59 min late10 flights3.2%
1–2 hours late6 flights1.9%
2+ hours late12 flights3.8%

Scale runs 0% to 100%.

Share of 314 completed flights by arrival against schedule.

7 of 32 late departures made up the time and arrived on time, 22% of them. In the other direction, 21 flights left on time yet arrived 15 minutes late or more, so that delay built up after pushback: in the air, in a holding pattern or on the ground at IAH.

The worst days

Worst days for UA 2617

The latest arrival of the period was on 14 December 2025, 7 hours 56 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on three of the five worst days.

The latest arrivals of UA 2617 in the period
Date	Arrived late by	Largest filed cause
14 December 2025	7 hours 56 minutes	Carrier
30 June 2026	7 hours 50 minutes	Carrier
23 March 2026	6 hours 11 minutes	Carrier
18 July 2026	5 hours 34 minutes	Extreme weather
15 June 2026	4 hours 55 minutes	Late-arriving aircraft

Delay causes

Why UA 2617 runs late

Carrier accounts for 43% of the 4,242 delay minutes carriers reported here, and the remaining four split what is left.

Carrier
43%
National Airspace System
27%
Late-arriving aircraft
19%
Extreme weather
11%

Extreme weather accounts for 11% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the quarterly figures above are the more useful view of the risk. The national share is 6%, so this operation carries roughly 1.8 times the usual weather exposure. The split is drawn from 4,242 delay minutes reported on UA 2617.

Cancellations run at 3.07%, against 1.89% nationally. That is roughly one flight in 30 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

5.7% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last an hour and a half, 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.

The same number turns up on six other city pairs in the data, including ORD to LGA (90), 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: 3.07% of its 326 scheduled flights did not operate. A late arrival costs an hour and a half, 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, September 2025 to August 2026. Last updated 22 October 2026; recomputed monthly. How this data is collected.

Key figures