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DelayAtlas

Route reliability record

RDM→PHX

Redmond to Phoenix

Flights
841
Period
July 2025 to June 2026
Distance
893 mi
Carriers
3
A+GRADE

This route earns an A+. Close to nine flights in ten arrive inside the 15-minute window the DOT uses to define an on-time arrival, which puts it 14 points better than the national rate of 77.6%. When something does go wrong the average delay runs close to two hours. That rests on 841 RDM to PHX flights, with a median arrival 14 minutes early.

Best time to fly RDM to PHX: a 8am–11am departure, ideally on a Tuesday. Flights in that window arrived on time 97.0% of the time and Tuesday flights 94.9%, against 91.6% for the route overall.

Set against the rest of the country, this route's record is 14 points better than the US average of 77.6%. That gap is worth roughly 140 fewer late arrivals for every thousand flights.

Key figures

On time

91.6%

Arrivals under 15 minutes late, of 835 completed flights

Avg delay

101 min

Across delayed arrivals only, not all flights

Cancelled

0.59%

National rate is 1.81%

Best carrier

Envoy

91.5% on time across 805 flights

These figures cover 841 flights between July 2025 and June 2026. The median arrival is 14 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

Which airline is most reliable on RDM to PHX

Only one carrier clears this site's 365-flight floor here, so there is no comparison to draw. The table below is the full picture.

On-time performance by carrier on RDM to PHX
AirlineFlightsOn timeAvg delayCancelledGrade
American Airlinesthin sample5100.0%—0.00%A+
SkyWest Airlinesthin sample3193.5%99 min0.00%A+
Envoy Air80591.5%101 min0.62%A+

Flight by flight

Flights on RDM to PHX

The flight numbers below flew this route at least 250 times in the period, busiest first. Each has its own record, with its schedule and delay causes.

Departure window

The best time of day to leave

Departure time matters more here than the choice of carrier. The gap between the best and worst window is 10 points, against half a point between the best and worst carrier. Each bar is the on-time rate for flights scheduled inside that window.

  • 5am–8am346 flights93.3%
  • 8am–11am100 flights97.0%
  • 11am–2pm100 flights86.9%
  • 2pm–5pm293 flights89.3%
  • 5pm–8pm—
  • 8pm–5am2 flights—

Scale runs 80% to 100%. Rows with fewer than 30 flights show a dash.

The weak window here is the middle of the day, not the evening: 11am–2pm runs 86.9% on time against 97.0% for 8am–11am. That shape usually means a departure bank rather than an accumulating delay, so the recovery later in the afternoon is real rather than noise. The 5am–8am window is the busiest, with 346 flights scheduled in it.

Across the year

When delays peak on this route

This route's year swings by 15 points from best month to worst, which is wide. An annual average tells you very little about the week you are actually flying, so read the strip rather than the headline if your dates are fixed.

On-time rate by calendar month87J91F95M99A95M92J90J92A90S92O84N90D
Darker means more delays. Figures are on-time percentages.April best, November worst

April is the best month on the calendar at 98.8% on time. Shoulder season thins the schedule and takes the summer weather with it, and the operation gets its margin back. March was the busiest month here, with 92 flights.

Across the week, Tuesday is the strongest day at 94.9% on time and Sunday the weakest at 87.7%. 7 points is a smaller lever than departure hour, but it is free.

On-time rate by day of the week91.8Mon94.9Tue94.2Wed93.3Thu88.2Fri91.2Sat87.7Sun
Monday: 91.8 percent on time. Tuesday: 94.9 percent on time. Wednesday: 94.2 percent on time. Thursday: 93.3 percent on time. Friday: 88.2 percent on time. Saturday: 91.2 percent on time. Sunday: 87.7 percent on time

Delay causes

Why this route gets delayed

One category carries most of the weight here. Late-arriving aircraft accounts for 45% of the 7,064 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
    45%
  • Extreme weather
    26%
  • Carrier
    19%
  • National Airspace System
    10%

Extreme weather accounts for 26% of delay minutes, well above the single-digit share typical across the system. Weather delays are lumpy: they arrive as whole bad days rather than as a steady drag, so the monthly strip above is the more useful view of the risk. The national share is 6%, so this operation carries roughly 4.2 times the usual weather exposure. The split is drawn from 7,064 reported delay minutes.

45% 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 7,064 reported delay minutes here, that single category outweighs weather by 2 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.

Cancellations are rare at 0.59%, 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 stage length

What a delay here actually costs

Badly late arrivals are rare here: only 3.1% 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 893 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 is a different operation and performs like one: it runs 86.9% on time across 841 flights, 5 points below this direction. Departure banks, aircraft rotations and the congestion at each end all differ, so scoring the two directions together would average away a real 5 points of difference.

One caution: this is a thin sample. 841 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.

Work out the risk of missing a connection in PHX after this flight

What to do with this

Booking this route

Put together: treat all of this as provisional. 841 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 91.6% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 835 completed flights over 12 months sit behind that.

Common questions

RDM to PHX questions

How often is RDM to PHX delayed?

About one flight in twelve arrives at least 15 minutes late, which is the Department of Transportation's definition of a delayed arrival. That works out to 8.4% of the 841 flights in this analysis, against 22.4% nationally. Delayed flights are late by close to two hours on average.

How reliable is RDM to PHX compared with the rest of the country?

91.6% of flights arrive on time here against a national 77.6%, a difference of 14 points in its favour. That is worth a A+ on this site's grading scale.

What time of day has the fewest delays on RDM to PHX?

The 8am–11am departure window is the strongest at 97.0% on time. The 11am–2pm window is the weakest at 86.9%, 10 points behind. Later departures inherit delays from earlier flights the same aircraft has already flown, which is why the curve slopes the way it does.

How bad are November delays on RDM to PHX?

November is the weakest month at 83.6% on time, compared with 98.8% in April. Across the year that is 15 points between the best and worst months. Moving flexible dates out of that month is one of the few things that reliably helps.

Related

Where to go next

Direction matters. RDM to PHX and PHX to RDM are scored separately because they are separate operations, with different departure banks and different aircraft. Compare the return leg.

Embed RDM to PHX’s on-time badge on your site

Paste this into a web page. The badge shows the current on-time rate, cancellation rate and grade, and updates every month. Preview it, or build a badge for another route or airport.

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.