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Route · RDU → PHX · 2020–2025 BTS data

Raleigh/Durham to Phoenix

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), RDU to PHX (Raleigh/Durham to Phoenix) ranks #3540 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

83.9%
On-time
+4.9 pts
vs US avg
75 min
Delay when late
2,509
Flights
#3540 of 4927
Corpus placement

Cancelled

0.4%

Best Month

Sep 2025 100%

Worst Month

May 2025 76%

Distance

1,891 mi

Carriers

4

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 69 14 0 0 WN,AA
Nov 2025 70 11 0 1 AA,WN
Oct 2025 60 4 0 0 AA,WN
Sep 2025 51 0 0 0 WN,AA
Aug 2025 53 4 1 0 AA,WN
Jul 2025 62 6 0 1 AA,WN
Jun 2025 60 11 0 0 AA,WN
May 2025 62 15 0 0 AA,WN
Apr 2025 60 9 0 0 WN,AA
Mar 2025 60 11 0 0 AA,WN
Feb 2025 47 8 1 0 AA,WN
Jan 2025 46 10 1 0 AA,WN
Dec 2024 66 10 0 0 AA,WN
Nov 2024 62 14 0 0 WN,AA
Oct 2024 51 4 0 1 WN,AA
Sep 2024 39 7 0 0 WN,AA
Aug 2024 40 7 0 0 AA,WN
Jul 2024 39 13 1 0 AA,WN
Jun 2024 38 6 0 0 AA,WN
May 2024 32 12 0 0 AA
Apr 2024 33 7 0 0 AA,DL,WN
Mar 2024 37 8 0 0 AA,WN
Jan 2024 32 8 0 0 AA,WN
Dec 2023 40 3 1 0 WN,AA

RDU–PHX seasonal on-time pattern

Best: September (89.0%) · weakest: May (76.6%)

75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 85.6%

Strongest calendar month

September

89.0% on-time · ~44 flights/mo

Busiest calendar month

December

~54 flights/mo avg

Weakest calendar month

May

76.6% on-time · ~47 flights/mo

Cancellation Rate

0.4%

5 of 1,209 flights

Diversion Rate

0.2%

3 of 1,209 flights

Explore origin & destination

On-time and delay data for the airports this route connects.

RDU - Raleigh/Durham

Full on-time, delay-cause, and seasonal performance for Raleigh/Durham, NC.

RDU on-time profile

PHX - Phoenix

Full on-time, delay-cause, and seasonal performance for Phoenix, AZ.

PHX on-time profile

Compare the two airports

See RDU and PHX side by side on delays, cancellations, and reliability.

Compare RDU vs PHX

Origin-hub reliability standing

Mid-pack among RDU departures

From RDU, this corridor sits with 25 other 75–85% on-time routes out of 35 tracked departures, not the hub's reliability leaders (9 at ≥85%) and not the softest ( 1 below 75%). Destination: Phoenix · fleet on-time rank #1630 of 4927.

What the Data Says About RDU to PHX

Bureau of Transportation Statistics records show Raleigh/Durham to Phoenix (RDU to PHX) running a 83.9% on-time rate over 2,509 tracked flights, on the stronger end of a typical domestic pairing. When flights do run late, the average delay is 75.0 minutes. The 1,891-mile corridor is served by 4 carriers, and over the last 24 months 0.4% of 1,209 flights were cancelled, 0.2% diverted.

The monthly split is wide on this route: Sep 2025 posted the strongest performance at 100% on-time, while May 2025 came in at just 76% - a 24-point swing worth factoring into travel timing.

On the multi-year calendar, RDU–PHX peaks in September at 89.0% on-time while December carries the heaviest traffic (~54 flights per month) ; the softest month is May at 76.6%, a 12.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does RDU to PHX rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, RDU to PHX ranks #3540 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from RDU to PHX? ▼
Flights from Raleigh/Durham to Phoenix have a 83.9% on-time rate based on 2,509 flights. The average delay is 75.0 minutes. The best recent month was Sep 2025 with 100% on-time.
What is the cancellation rate for RDU to PHX? ▼
Over the last 24 months, 0.4% of flights on this route were cancelled (5 of 1,209 flights) and 0.2% were diverted.
How far is the flight from RDU to PHX? ▼
The flight distance from Raleigh/Durham (RDU) to Phoenix (PHX) is approximately 1,891 miles. This route is served by 4 carriers.
When is the best time to fly from RDU to PHX? ▼
The best recent month for on-time performance was Sep 2025 (100% on-time). The worst was May 2025 (76% on-time). Consider booking during months with historically better performance.

Airports on this route

RDU Airport

Raleigh/Durham
PHX Airport

Phoenix
Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Read our methodology - how this data is sourced, computed, and verified.

Using RDU–PHX data

RDU–PHX runs 4.9 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.

  • Compare RDU and PHX airport profiles: delay causes and top routes differ even on the same corridor. RDU airport
  • If your dates flex, September (89.0% on-time) beats May (76.6%) on this corridor. Seasonal chart
  • 4 other routes post a similar 83.9% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.