Boise (BOI) – Phoenix (PHX)
- Distance
- 1,183 km
- 735 mi · 639 nm
- Flight time
- 2 h 7 min / 2 h 8 min
- Average gate to gate: BOI → PHX / back
- Time difference
- none / 1 h
- January / July
- CO2 per passenger
- 149 kg
- One way, economy, incl. RF (88 kg CO2 only)
- Passengers / year
- 407,798
- Aug 2025 – Jul 2026 · +1.5%
- Flights / week
- 90
- Both directions, average
- Seats filled
- 82%
- 494,385 seats a year
- Airlines nonstop
- 5
- WN, OO, QX
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from BOI
- 161°
- Heading from PHX
- 343°
- Halfway point
- 38.52, -113.97
- Great-circle km
- 1,184 km (sphere, for EU261)
- In the air BOI → PHX
- 1 h 44 min
- In the air PHX → BOI
- 1 h 45 min
- Clocks
- none in January, 1 h in July
The estimate for a route without real times is 2 h 10 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 30,741 |
| Sep 2025 | 30,369 |
| Oct 2025 | 38,195 |
| Nov 2025 | 37,546 |
| Dec 2025 | 39,396 |
| Jan 2026 | 33,152 |
| Feb 2026 | 31,413 |
| Mar 2026 | 36,370 |
| Apr 2026 | 32,084 |
| May 2026 | 35,188 |
| Jun 2026 | 31,529 |
| Jul 2026 | 31,815 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 353 |
| Sep 2025 | 306 |
| Oct 2025 | 417 |
| Nov 2025 | 441 |
| Dec 2025 | 448 |
| Jan 2026 | 418 |
| Feb 2026 | 360 |
| Mar 2026 | 424 |
| Apr 2026 | 397 |
| May 2026 | 377 |
| Jun 2026 | 360 |
| Jul 2026 | 365 |
Airlines flying BOI–PHX nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| WNSouthwest Airlines | 31 | 52% |
| OOSkyWest Airlines | 39 | 32% |
| QXHorizon Air | 12 | 9% |
| MQEnvoy Air | 4.4 | 4% |
| AAAmerican Airlines | 2.2 | 3% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Embraer ERJ-175 · 2,506 flights
- Boeing 737-700/700LR/Max 7 · 678 flights
- Boeing B737 Max 800 · 537 flights
- Boeing 737-800 · 411 flights
- Canadair RJ-700 · 347 flights
- Airbus Industrie A319 · 109 flights
- Canadair CRJ 900 · 74 flights
- Airbus Industrie A320-100/200 · 2 flights
Also carried: 39 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 82.1%
- Arrived within 15 min of schedule
- Average delay
- 12 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.4%
- Flights counted
- 4,029
- Aug 2025 – Jul 2026
| Airline | On time | Average delay |
|---|---|---|
| OOSkyWest Airlines | 85% | 13 min |
| WNSouthwest Airlines | 79.9% | 12 min |
| MQEnvoy Air | 76.2% | 11 min |
| AAAmerican Airlines | 71.4% | 23 min |
Delay minutes by cause: airline 37% · aircraft arriving late 46% · air traffic system 10% · weather 7% · security 0%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q1 2026
- $211
- One way, all cabins
- Average over a year
- $190
- Q2 2025 – Q1 2026
- Largest airline
- Southwest Airlines
- 46% of passengers · $194
- Lowest-fare airline
- Southwest Airlines
- 46% of passengers · $194
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $181 · Q3 2025 $173 · Q4 2025 $190 · Q1 2026 $211).
Fare outlook, Q1 2027: about $215, likely $186–$246
The average fare paid we expect a year after Q1 2026, the newest DOT quarter. On this route, past forecasts made this way fell inside the range 76% of the time over 21 quarters (median error 7.8%). An estimate from US DOT data: not a price you can book, not a guarantee, not advice on when to buy. How the outlook works
Cheapest quarter on this route: Q3, typically 4% below the year's average (9 years of DOT data, without 2020–21).
U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 1,184 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.