Route reliability record
RDM→PHX
Redmond to Phoenix
- Flights
- 841
- Period
- September 2025 to August 2026
- Distance
- 893 mi
- Carriers
- 3
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 77.3%. 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 Saturday. Flights in that window arrived on time 97.0% of the time and Saturday flights 94.6%, against 91.0% for the route overall.
Set against the rest of the country, this route's record is 14 points better than the US average of 77.3%. That gap is worth roughly 137 fewer late arrivals for every thousand flights.
Key figures
On time
91.0%
Arrivals under 15 minutes late, of 834 completed flights
Avg delay
109 min
Across delayed arrivals only, not all flights
Cancelled
0.59%
National rate is 1.89%
Best carrier
Envoy
90.9% on time across 805 flights
These figures cover 841 flights between September 2025 and August 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.
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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.
| Airline | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| American Airlinesthin sample | 5 | 100.0% | — | 0.00% | A+ |
| SkyWest Airlinesthin sample | 31 | 93.5% | 99 min | 0.00% | A+ |
| Envoy Air | 805 | 90.9% | 110 min | 0.62% | A+ |
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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 14 points, against half a point between the best and worst carrier.
- 5am–8am347 flights93.9%
- 8am–11am100 flights97.0%
- 11am–2pm101 flights82.8%
- 2pm–5pm292 flights88.3%
- 5pm–8pm—
- 8pm–5am1 flights—
Scale runs 75% 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 82.8% 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 347 flights scheduled in it.
Explore
Filter RDM to PHX by airline, time, month and day
Pick a breakdown and a carrier. The dashed mark on each row is the same slice for every US flight.
On RDM to PHX, the best departure window is 8am–11am at 97.0% on time and the worst is 11am–2pm at 82.8%, a wide gap of 14.2 points. All US flights leaving 8am–11am ran 83.9%.
- 5–8am93.9%
- 8–11am97.0%
- 11am–2pm82.8%
- 2–5pm88.3%
- 5–8pm—
- 8pm–5am—
best all US flightsScale 60% to 100%. Cells under 30 flights show a dash.
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.
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, Saturday is the strongest day at 94.6% on time and Sunday the weakest at 85.2%, a spread of 9 points.
Delay causes
Why this route gets delayed
Carriers report a reason for every delay minute they cause, in five DOT categories. The split below is by minutes, not by number of flights, so a handful of very long weather delays weighs as much as many short ones. It covers 8,207 reported delay minutes.
- 39%Late-arriving aircraft
- 27%Carrier
- 22%Extreme weather
- 11%National Airspace System
Extreme weather accounts for 22% 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 3.7 times the usual weather exposure. The split is drawn from 8,207 reported delay minutes.
39% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 8,207 reported delay minutes here, that single category outweighs weather by 2 to one.
Cancellations are rare at 0.59%, 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 stage length
What a delay here actually costs
Badly late arrivals are rare here: only 3.6% 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 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.
The return leg is a different operation and performs like one: it runs 85.8% 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 91.0% headline is the most reliable number on the page; the hour and month splits below it are built on a few dozen flights each. 834 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 9.0% of the 841 flights in this analysis, against 22.7% 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?
91.0% of flights arrive on time here against a national 77.3%, 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 82.8%, 14 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
- PHX to RDM — the return legseparate record
- Phoenix Sky Harbor International (PHX) delay statistics
- RDM to SEA, a related route85.2%
- DEN to PHX, a related route75.6%
- RDM to SFO, a related route61.8%
- American Airlines on-time record100.0%
- SkyWest Airlines on-time record93.5%
- Envoy Air on-time record90.9%
- Why the first flight of the morning is statistically safest
- The most punctual routes in the US, and the least
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.
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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.