Flight number record

UA 2670

United Airlines · Dallas-Fort Worth to Houston

Route: DFW → IAH
Departs: 07:00
Flights: 310
Period: July 2025 to June 2026

Historical statistics for July 2025 to June 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. About seven flights in ten arrive on time by the DOT's definition, 7 points worse than the national rate of 77.6%. The late ones land about an hour behind schedule. That rests on 310 flights, with a median arrival 2 minutes early.

The national on-time rate over the same period is 77.6%, so UA 2670 runs 7 points behind the country as a whole. Across a thousand flights that is about 68 extra late arrivals.

On time

70.8%

Arrivals under 15 minutes late, of 301 completed flights

Avg delay

58 min

Across delayed arrivals only, not all flights

Cancelled

2.26%

National rate is 1.81%

1 hour+ late

4.3%

National rate is 8.1%

These figures cover 310 flights between July 2025 and June 2026. The median arrival is 2 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 2670 flies

UA 2670 flies DFW to IAH without a single fixed slot. Its most common scheduled departure was 07:00, used on 203 of 310 flights, with 07:05 (86 flights) next. Carriers retime flights through the season, so the rates here blend slightly different positions in the aircraft's day.

Departs 07:00203 flights65.5%
Departs 07:0586 flights27.7%

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 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 19 points worse at 70.8%. 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 2670 next to DFW to IAH

Every carrier on DFW to IAH combined arrived on time 69.8% of the time across 5,780 flights, so UA 2670 is about level with it. United flew 2,414 flights on the same city pair under all its flight numbers, including this one, and those ran 76.9% on time. Across its whole network United Airlines managed 79.0%, which this flight trails by 8 points.

UA 2670 against its route and carrier
Compared with	Flights	On time	Avg delay	Cancelled	Grade
UA 2670thin sample	310	70.8%	58 min	2.26%	C
All United Airlines on DFW–IAH	2,414	76.9%	86 min	1.99%	B
All carriers on DFW–IAH	5,780	69.8%	81 min	2.92%	C
United Airlines, whole network	821,041	79.0%	72 min	1.01%	B

Across the year

UA 2670 quarter by quarter

Quarter by quarter UA 2670 held fairly steady: 68.7% in Jul–Sep 2025, 66.7% in Oct–Dec 2025, 72.2% in Jan–Mar 2026 and 73.9% in Apr–Jun 2026. A spread of 7 points is about what a sample of this size moves on its own, so the annual figure is a fair summary.

Jul–Sep 202586 flights68.7%
Oct–Dec 202551 flights66.7%
Jan–Mar 202683 flights72.2%
Apr–Jun 202690 flights73.9%

Scale runs 60% to 80%. Rows with fewer than 30 flights show a dash.

By weekday, UA 2670 did best on Wednesday at 76.9% on time and worst on Friday at 63.6%. Each day rests on about 44 flights, so a gap of 13 points is worth noticing but could still narrow in another year.

Delay causes

Why UA 2670 runs late

One category carries most of the weight here. Carrier accounts for 50% of the 5,141 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
50%
National Airspace System
47%
Extreme weather
3%

The largest share of delay minutes, 50%, 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 2,549 of the 5,141 delay minutes reported here. The split is drawn from 5,141 delay minutes reported on UA 2670.

Cancellations sit at 2.26% against a national 1.81%, which is ordinary. Diversions add another 0.65%.

Connections and routes

What a delay on this flight costs

Badly late arrivals are rare here: only 4.3% land an hour or more behind schedule, against 8.1% 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 (103), IAH to DEN (57) and DEN to SMF (42), 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 70.8% on time with 2.26% cancelled over 310 flights. Those are rates from the past twelve months, not a forecast for any particular day.

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