Flight number record
UA 2670
United Airlines · Dallas-Fort Worth to Houston
- Route
- DFW → IAH
- Departs
- 07:00
- Flights
- 310
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s UA 2670, check with United Airlines.
UA 2670 sits in the middle of the pack with a C. Close to three flights in four arrive on time by the DOT's definition, 3 points worse than the national rate of 77.3%. The late ones land about an hour behind schedule. That rests on 310 flights, with a median arrival 7 minutes early.
Key figures
On time
74.3%
Arrivals under 15 minutes late, of 303 completed flights
Avg delay
60 min
Across delayed arrivals only, not all flights
Cancelled
1.94%
National rate is 1.89%
1 hour+ late
4.0%
National rate is 8.3%
These figures cover 310 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.
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 2670 flies
UA 2670 is scheduled to leave Dallas-Fort Worth (DFW) at 07:00 local time and reach Houston (IAH) at 08:26. That slot held for 265 of the 310 scheduled departures in the data, so the figures below describe one steady operation rather than a number that moved around the clock.
- Departs 07:00265 flights85.5%
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 07:00 departure sits in the 5am–8am window. Across every US flight scheduled in that window the on-time rate is 89.3%, and UA 2670 runs 15 points worse at 74.3%. 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 2670 next to DFW to IAH
Every carrier on DFW to IAH combined arrived on time 70.7% of the time across 5,800 flights, so UA 2670 is 4 points ahead of it. United flew 2,457 flights on the same city pair under all its flight numbers, including this one, and those ran 79.1% on time. Across its whole network United Airlines managed 78.8%, which this flight trails by 5 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| UA 2670thin sample | 310 | 74.3% | 60 min | 1.94% | C |
| All United Airlines on DFW–IAH | 2,457 | 79.1% | 81 min | 1.71% | B |
| All carriers on DFW–IAH | 5,800 | 70.7% | 79 min | 2.43% | C |
| United Airlines, whole network | 830,825 | 78.8% | 73 min | 1.02% | B |
Across the year
UA 2670 quarter by quarter
UA 2670 did not run the same all year. Its best quarter was Jul–Sep 2026 at 95.2% on time and its weakest Oct–Dec 2025 at 66.7%, a swing of 29 points on roughly 78 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 202524 flights—
- Oct–Dec 202551 flights66.7%
- Jan–Mar 202683 flights72.2%
- Apr–Jun 202690 flights73.9%
- Jul–Sep 202662 flights95.2%
Scale runs 60% to 100%. Rows with fewer than 30 flights show a dash.
By weekday, UA 2670 ranged from 68.9% on Tuesday to 79.5% on Monday. With about 44 flights behind each day, a spread of 11 points is inside normal variation, so the day you fly is not worth changing for this flight.
Arrival by arrival
How late UA 2670 runs when it is late
UA 2670 often beats the schedule: 104 of 303 completed flights, 34%, arrived 15 minutes or more early. Most of the lateness is short. 44 of the 78 late arrivals were under half an hour behind, and 12 reached an hour or more.
- 15+ min early104 flights34.3%
- Within 15 min121 flights39.9%
- 15–29 min late44 flights14.5%
- 30–59 min late22 flights7.3%
- 1–2 hours late7 flights2.3%
- 2+ hours late5 flights1.7%
Scale runs 0% to 100%.
Share of 303 completed flights by arrival against schedule.
Only 17 of 303 completed flights left 15 minutes late or more, too few to say how often the time is made up.
The worst days
Worst days for UA 2670
The latest arrival of the period was on 4 April 2026, 9 hours 45 minutes behind schedule; most of its delay minutes were filed as carrier-caused (crew, maintenance, fuelling, baggage). The same cause led on four of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 4 April 2026 | 9 hours 45 minutes | Carrier |
| 4 January 2026 | 9 hours 28 minutes | Carrier |
| 29 April 2026 | 8 hours 58 minutes | Carrier |
| 21 March 2026 | 8 hours 52 minutes | Carrier |
| 19 June 2026 | 2 hours 2 minutes | Extreme weather |
Delay causes
Why UA 2670 runs late
Carrier accounts for 48% of the 4,689 delay minutes carriers reported here, and the remaining four split what is left.
- 48%Carrier
- 48%National Airspace System
- 4%Extreme weather
The largest share of delay minutes, 48%, falls under carrier control: crew scheduling, maintenance, fuelling, baggage. It accounts for 2,263 of the 4,689 delay minutes reported here. The split is drawn from 4,689 delay minutes reported on UA 2670.
Cancellations sit at 1.94% against a national 1.89%, which is ordinary. Diversions add another 0.32%.
Connections and routes
What a delay on this flight costs
Badly late arrivals are rare here: only 4.0% land an hour or more behind schedule, against 8.3% 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 same number turns up on ten other city pairs in the data, including IAH to FLL (93), IAH to DCA (40) and DEN to SMF (32), but none flew often enough under UA 2670 to report a rate for. Carriers move flight numbers between routes, so the figures on this page apply to DFW to IAH only.
One caution: this is a thin sample. 310 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 2670
For a booking, read UA 2670 as 74.3% on time with 1.94% cancelled over 310 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- DFW to IAH, every carrier and departure
- IAH to DFW, the return direction
- United Airlines 2260 on the same route94.9%
- United Airlines 1609 on the same route62.9%
- United Airlines 2682 on the same route69.1%
- United Airlines 539 on the same route84.9%
- Dallas/Fort Worth International (DFW) delay statistics
- George Bush Intercontinental (IAH) 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
- Worst months to fly in the US, ranked by the data
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.