Carrier route record

MQPHX→TUL

Envoy Air · Phoenix to Tulsa

Flights: 270
Period: July 2025 to June 2026
Share of route: 21%
Carriers: 3

Historical statistics for July 2025 to June 2026, not live status. For today’s flights, check with Envoy Air.

Envoy on PHX to TUL lands a B+, 4 points better than the national rate of 77.6%. Roughly one flight in five 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 270 flights. The strongest carrier on the route with a full sample, SkyWest Airlines, flew 404 at 79.1% on time.

The US average over the same twelve months is 77.6%, so there is little to separate Envoy on PHX to TUL from the country as a whole. The variation that matters here is internal: which carrier, and what time of day.

On time

81.5%

Arrivals under 15 minutes late, of 270 completed flights

Avg delay

68 min

Across delayed arrivals only, not all flights

Cancelled

0.00%

National rate is 1.81%

Whole route

75.1%

Every carrier on PHX to TUL, 1,277 flights

These figures cover 270 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.

Carrier by carrier

Envoy against every carrier on PHX to TUL

Envoy flew 270 of the 1,277 flights on PHX to TUL, about 21% of it. Its 81.5% on time is 6 points better than the route as a whole, which runs 75.1%. Ranked by on-time rate it is first of three carriers on the route, where the range runs from Envoy at 81.5% to Southwest at 69.4%.

The choice of carrier is not cosmetic here. SkyWest Airlines arrives on time 79.1% of the time; Southwest Airlines manages 69.4%. Sample sizes sit next to every figure, because a two-point gap across 603 flights means less than a ten-point one.

On-time performance by carrier on PHX to TUL
Airline	Flights	On time	Avg delay	Cancelled	Grade
Envoy Air (this page)thin sample	270	81.5%	68 min	0.00%	B+
SkyWest Airlines	404	79.1%	93 min	0.25%	B+
Southwest Airlines	603	69.4%	56 min	0.50%	C+

SkyWest leads Southwest by 10 points. Real, but small enough that a better departure time on the weaker carrier can outweigh it.

Departure window

When Envoy runs best on this route

Departure time is the single lever a traveller controls, and it moves the odds more than most people expect. Each bar below is the on-time rate for flights scheduled to leave inside that window, across 270 flights.

5am–8am—
8am–11am—
11am–2pm165 flights83.0%
2pm–5pm—
5pm–8pm105 flights79.0%
8pm–5am—

Scale runs 70% to 90%. Rows with fewer than 30 flights show a dash.

The 11am–2pm window is the strongest at 83.0% on time. The full set of windows spans 4 points.

Across the year

Envoy on PHX to TUL through the year

Jul–Sep 2025142 flights84.5%
Oct–Dec 202548 flights85.4%
Apr–Jun 202680 flights73.8%

Scale runs 65% to 90%. Rows with fewer than 30 flights show a dash.

Monthly volumes are too low here to break the year into twelve reliable readings. What the twelve-month total says is 81.5% on time across 270 flights.

Envoy on PHX to TUL did not run the same all year. Its best quarter was Oct–Dec 2025 at 85.4% on time and its weakest Apr–Jun 2026 at 73.8%, a swing of 12 points on roughly 90 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.

Across the week, Saturday is the strongest day at 88.2% on time and Sunday the weakest at 76.2%. 12 points is a smaller lever than departure hour, but it is free.

Delay causes

Why Envoy runs late on this route

One category carries most of the weight here. Late-arriving aircraft accounts for 73% of the 3,376 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
73%
Carrier
17%
National Airspace System
9%
Extreme weather
1%

73% 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 3,376 reported delay minutes here, that single category outweighs weather by 71 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 3,376 reported delay minutes.

Cancellations are rare at 0.00%, below the national 1.81% and low enough to earn the plus on the grade. Almost no flights are called off; the risk here is arriving late, not not arriving.

Connections and stage length

What a delay here costs

6.7% 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 935 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. It is also long enough that the aircraft usually flies three or four legs a day rather than six, which slows how fast delay compounds.

The return leg runs 82.3% on time across 271 flights, within about a point of this direction. The two legs are scored separately because they usually differ; on this city pair they happen not to.

One caution: this is a thin sample. 270 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 Envoy on PHX to TUL

Put together: treat all of this as provisional. 270 flights over twelve months is enough to clear this site's floor and not enough to be confident to better than a couple of points. The 81.5% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 270 completed flights over 12 months sit behind that.

Where to go next

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