Flight number record

UA 2170

United Airlines · Houston to New Orleans

Route: IAH → MSY
Departs: 20:25
Flights: 357
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 2026, not live status. For today’s UA 2170, check with United Airlines.

UA 2170 lands a B+, level with the national rate of 77.6%. Roughly one flight in four arrives 15 minutes late or worse, and those flights are late by about an hour on average. That is a workable record, not a spotless one. That rests on 357 flights, with a median arrival 7 minutes early.

On time

77.1%

Arrivals under 15 minutes late, of 354 completed flights

Avg delay

59 min

Across delayed arrivals only, not all flights

Cancelled

0.84%

National rate is 1.81%

1 hour+ late

7.6%

National rate is 8.1%

These figures cover 357 flights between July 2025 and June 2026. The median arrival is 7 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 2170 flies

UA 2170 flies IAH to MSY without a single fixed slot. Its most common scheduled departure was 20:25, used on 105 of 357 flights, with 20:30 (104 flights) and 20:15 (84 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 20:25105 flights29.4%
Departs 20:30104 flights29.1%
Departs 20:1584 flights23.5%

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 20:25 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.5%, and UA 2170 runs 7 points better at 77.1%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.

Against the route

UA 2170 next to IAH to MSY

Every carrier on IAH to MSY combined arrived on time 82.9% of the time across 2,962 flights, so UA 2170 is 6 points behind it. United flew 2,783 flights on the same city pair under all its flight numbers, including this one, and those ran 82.9% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 2 points.

UA 2170 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2170thin sample	357	77.1%	59 min	0.84%	B+
All United Airlines on IAH–MSY	2,783	82.9%	63 min	0.25%	B+
All carriers on IAH–MSY	2,962	82.9%	65 min	0.30%	B+
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2170 quarter by quarter

UA 2170 did not run the same all year. Its best quarter was Jan–Mar 2026 at 87.6% on time and its weakest Apr–Jun 2026 at 72.9%, a swing of 15 points on roughly 89 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 flights74.2%
Oct–Dec 202591 flights73.6%
Jan–Mar 202690 flights87.6%
Apr–Jun 202685 flights72.9%

Scale runs 65% to 95%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2170 did best on Tuesday at 84.6% on time and worst on Thursday at 68.0%. Each day rests on about 51 flights, so a gap of 17 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2170 runs late

One category carries most of the weight here. Late-arriving aircraft accounts for 52% of the 4,795 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.

Late-arriving aircraft
52%
Carrier
38%
National Airspace System
9%
Extreme weather
1%

52% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. That is a cascade, and cascades start small and grow through the day. Across 4,795 reported delay minutes here, that single category outweighs weather by 46 to one. It is the strongest argument for booking the first departure of the morning, when the aircraft has been sitting at the gate overnight with nothing to inherit. The split is drawn from 4,795 delay minutes reported on UA 2170.

Cancellations are rare at 0.84%, 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

7.6% 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 about an hour, which a normal layover absorbs.

The same number turns up on six other city pairs in the data, including SAT to IAH (49), IAD to BZN (12) and BZN to IAH (12), but none flew often enough under UA 2170 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to IAH to MSY only.

One caution: this is a thin sample. 357 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 2170

For a booking, UA 2170 is one of the weaker ways to fly IAH to MSY: 6 points below the route as a whole. If the schedule allows, compare it with the other departures listed on the route page before settling on this one.

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