PlainFlights

Route · PHX → BOI · 2020–2025 BTS data

Phoenix to Boise

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), PHX to BOI (Phoenix to Boise) ranks #1324 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

81.5%
On-time
+2.5 pts
vs US avg
68 min
Delay when late
9,070
Flights
#1324 of 4927
Corpus placement

Cancelled

0.2%

Best Month

Apr 2024 90%

Worst Month

Jun 2024 65%

Distance

735 mi

Carriers

45

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 188 30 0 1 WN,MQ,OO
Nov 2025 190 34 3 3 OO,MQ,AA,WN
Oct 2025 198 40 0 0 AA,OO,WN
Sep 2025 129 25 1 0 WN,OO,AA
Aug 2025 149 20 0 0 OO,WN
Jul 2025 154 35 2 0 OO,WN
Jun 2025 151 36 0 0 OO,WN,MQ
May 2025 186 29 0 0 OO,WN,MQ
Apr 2025 207 35 0 0 OO,WN
Mar 2025 199 42 0 0 AA,OO,WN,MQ
Feb 2025 165 38 0 1 AA,OO,WN,MQ
Jan 2025 173 23 0 0 AA,OO,UA,WN,MQ
Dec 2024 157 39 0 0 AA,MQ,OO,WN
Nov 2024 152 27 0 0 OO,MQ,WN
Oct 2024 157 25 0 0 OO,WN,AA
Sep 2024 163 25 0 1 WN,OO,AA
Aug 2024 154 28 0 0 WN,OO
Jul 2024 119 29 0 1 AA,OO,WN
Jun 2024 130 46 0 0 AA,MQ,OO,WN
May 2024 158 26 0 0 MQ,OO,WN
Apr 2024 136 13 0 0 MQ,OO,WN
Mar 2024 133 18 0 0 MQ,OO,WN
Feb 2024 116 12 0 0 MQ,OO,WN
Jan 2024 129 31 0 1 MQ,WN,OO

PHX–BOI seasonal on-time pattern

Best: April (86.9%) · weakest: June (72.2%)

70%75%80%85%90% JanFebMarAprMayJunJulAugSepOctNovDec 76.9%

Strongest calendar month

April

86.9% on-time · ~129 flights/mo

Busiest calendar month

December

~144 flights/mo avg

Weakest calendar month

June

72.2% on-time · ~127 flights/mo

Cancellation Rate

0.2%

6 of 3,793 flights

Diversion Rate

0.2%

8 of 3,793 flights

Explore origin & destination

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

PHX - Phoenix

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

PHX on-time profile

BOI - Boise

Full on-time, delay-cause, and seasonal performance for Boise, ID.

BOI on-time profile

Compare the two airports

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

Compare PHX vs BOI

Origin-hub reliability standing

Mid-pack among PHX departures

From PHX, this corridor sits with 71 other 75–85% on-time routes out of 97 tracked departures, not the hub's reliability leaders (25 at ≥85%) and not the softest ( 1 below 75%). Destination: Boise · fleet on-time rank #2553 of 4927.

What the Data Says About PHX to BOI

9,070 tracked flights put the PHX to BOI pairing (Phoenix to Boise) at a 81.5% on-time rate, squarely in line with the wider network. Delays that do occur run 67.5 minutes on average. Across the 735-mile route and its 45 carriers, the trailing 24 months show 0.2% cancelled and 0.2% diverted (3,793 flights sampled).

The monthly split is wide on this route: Apr 2024 posted the strongest performance at 90% on-time, while Jun 2024 came in at just 65% - a 26-point swing worth factoring into travel timing.

On the multi-year calendar, PHX–BOI peaks in April at 86.9% on-time while December carries the heaviest traffic (~144 flights per month) ; the softest month is June at 72.2%, a 14.7-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does PHX to BOI rank among US routes by traffic? ▼
According to PlainFlights' route traffic ranking, PHX to BOI ranks #1324 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 PHX to BOI? ▼
Flights from Phoenix to Boise have a 81.5% on-time rate based on 9,070 flights. The average delay is 67.5 minutes. The best recent month was Apr 2024 with 90% on-time.
What is the cancellation rate for PHX to BOI? ▼
Over the last 24 months, 0.2% of flights on this route were cancelled (6 of 3,793 flights) and 0.2% were diverted.
How far is the flight from PHX to BOI? ▼
The flight distance from Phoenix (PHX) to Boise (BOI) is approximately 735 miles. This route is served by 45 carriers.
When is the best time to fly from PHX to BOI? ▼
The best recent month for on-time performance was Apr 2024 (90% on-time). The worst was Jun 2024 (65% on-time). Consider booking during months with historically better performance.

Airports on this route

PHX Airport

Phoenix
BOI Airport

Boise
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 PHX–BOI data

PHX–BOI is mid-pack at 81.5% on-time; month and carrier mix move more than the corridor headline.

  • Compare PHX and BOI airport profiles: delay causes and top routes differ even on the same corridor. PHX airport
  • If your dates flex, April (86.9% on-time) beats June (72.2%) on this corridor. Seasonal chart
  • 4 other routes post a similar 81.5% 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.