Flight number record
UA 2170
United Airlines · Houston to New Orleans
- Route
- IAH → MSY
- Departs
- 20:25
- Flights
- 296
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2170, check with United Airlines.
UA 2170 lands a B+, about a point better than the national rate of 77.3%. About one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 296 flights, with a median arrival 7 minutes early.
Key figures
On time
78.6%
Arrivals under 15 minutes late, of 295 completed flights
Avg delay
59 min
Across delayed arrivals only, not all flights
Cancelled
0.34%
National rate is 1.89%
1 hour+ late
6.4%
National rate is 8.3%
These figures cover 296 flights between September 2025 and August 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.
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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 92 of 296 flights, with 20:15 (84 flights) and 20:30 (56 flights) next.
- Departs 20:2592 flights31.1%
- Departs 20:1584 flights28.4%
- Departs 20:3056 flights18.9%
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 20:25 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and UA 2170 runs 9 points better at 78.6%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
UA 2170 next to IAH to MSY
Every carrier on IAH to MSY combined arrived on time 83.8% of the time across 2,911 flights, so UA 2170 is 5 points behind it. United flew 2,739 flights on the same city pair under all its flight numbers, including this one, and those ran 83.9% on time. Across its whole network United Airlines managed 78.8%, close to this flight's figure.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2170thin sample | 296 | 78.6% | 59 min | 0.34% | B+ |
| All United Airlines on IAH–MSY | 2,739 | 83.9% | 60 min | 0.11% | B+ |
| All carriers on IAH–MSY | 2,911 | 83.8% | 64 min | 0.14% | B+ |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | 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 74 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 202530 flights83.3%
- Oct–Dec 202591 flights73.6%
- Jan–Mar 202690 flights87.6%
- Apr–Jun 202685 flights72.9%
Scale runs 65% to 95%.
By weekday, UA 2170 did best on Wednesday at 90.7% on time and worst on Saturday at 69.0%. Each day rests on about 42 flights, so a gap of 22 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late UA 2170 runs when it is late
UA 2170 often beats the schedule: 76 of 295 completed flights, 26%, arrived 15 minutes or more early. The 63 late arrivals split 21 under half an hour, 23 between 30 and 60 minutes, and 19 an hour or more.
- 15+ min early76 flights25.8%
- Within 15 min156 flights52.9%
- 15–29 min late21 flights7.1%
- 30–59 min late23 flights7.8%
- 1–2 hours late12 flights4.1%
- 2+ hours late7 flights2.4%
Scale runs 0% to 100%.
Share of 295 completed flights by arrival against schedule.
14 of 74 late departures made up the time and arrived on time, 19% of them. Only 3 left on time and still arrived late.
The worst days
Worst days for UA 2170
The latest arrival of the period was on 25 October 2025, 4 hours 39 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). On three of the five worst days the largest share was filed as a late-arriving aircraft.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 25 October 2025 | 4 hours 39 minutes | Carrier |
| 14 June 2026 | 2 hours 49 minutes | Late-arriving aircraft |
| 12 April 2026 | 2 hours 38 minutes | Late-arriving aircraft |
| 19 June 2026 | 2 hours 26 minutes | Late-arriving aircraft |
| 17 September 2025 | 2 hours 20 minutes | Carrier |
Delay causes
Why UA 2170 runs late
Late-arriving aircraft accounts for 51% of the 3,688 delay minutes carriers reported here, and the remaining four split what is left.
- 51%Late-arriving aircraft
- 38%Carrier
- 10%National Airspace System
- 1%Extreme weather
51% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 3,688 reported delay minutes here, that single category outweighs weather by 51 to one. The split is drawn from 3,688 delay minutes reported on UA 2170.
Cancellations are rare at 0.34%, below the national 1.89% 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
6.4% 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 about an hour, which a normal layover absorbs.
The same number turns up on six other city pairs in the data, including JAC to DEN (32), IAD to BZN (30) and BZN to IAH (24), 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. 296 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: 5 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.
Related
Where to go next
- IAH to MSY, every carrier and departure
- MSY to IAH, the return direction
- United Airlines 2385 on the same route86.7%
- United Airlines 491 on the same route92.2%
- United Airlines 2474 on the same route84.5%
- United Airlines 2140 on the same route76.5%
- George Bush Intercontinental (IAH) delay statistics
- Louis Armstrong New Orleans International (MSY) delay statistics
- United Airlines on-time record
- Every United Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
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 ; recomputed monthly. How this data is collected.