Boise Air Terminal/Gowen Field (BOI) delays & on-time performance
Boise, Idaho · 25 nonstop destinations · 10 airlines · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at BOI right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
On-time arrivals
84%
arrived < 15 min late
Cancelled
0.5%
125 flights
Avg arrival delay
13 min
71 min when late
Departed on time
84%
avg taxi-out 17 min
Figures cover 23,701 departures from BOI; on-time is measured at arrival. Arrivals into BOI were on time 81% of the time.
Key facts
- Flights departing Boise Air Terminal/Gowen Field (BOI) arrived on time 84% of the time in Aug 2025 – Jul 2026, better than the 78% national average.
- 0.5% were cancelled, and 5% arrived an hour or more late.
- Delta Air Lines was the most punctual airline here (88% on time); American Airlines was the least (77%).
- Departures scheduled around 6am did best (94% on time); around 7pm did worst (70%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (36%).
Most delayed routes from BOI
Lowest on-time arrival rates among regularly flown routes.
- SFO · San Francisco68%1,716 flts
- ORD · Chicago75%1,111 flts
- SAN · San Diego81%1,028 flts
- DFW · Dallas/Fort Worth81%802 flts
- LAS · Las Vegas81%1,363 flts
- DEN · Denver82%3,033 flts
- PHX · Phoenix84%2,014 flts
- OAK · Oakland84%554 flts
- ATL · Atlanta85%545 flts
- SMF · Sacramento85%860 flts
Most reliable routes from BOI
Highest on-time arrival rates among regularly flown routes.
- LAX · Los Angeles93%1,373 flts
- PDX · Portland91%1,084 flts
- SLC · Salt Lake City91%1,740 flts
- MSP · Minneapolis87%783 flts
- SJC · San Jose86%658 flts
- BUR · Burbank86%430 flts
- SEA · Seattle85%3,761 flts
- SMF · Sacramento85%860 flts
- ATL · Atlanta85%545 flts
- OAK · Oakland84%554 flts
Best airline at BOI
Departures from this airport, ranked by on-time arrival.
| Airline | On time | Cancelled | Avg delay | Routes | Flights |
|---|---|---|---|---|---|
| Delta Air Lines | 88% | 1.1% | 11 min | 3 | 2,546 |
| Alaska Airlines | 87% | 0.6% | 8 min | 8 | 2,203 |
| SkyWest Airlines | 85% | 0.4% | 11 min | 15 | 10,509 |
| Southwest Airlines | 81% | 0.2% | 11 min | 10 | 5,306 |
| Frontier Airlines | 81% | 0.0% | 22 min | 1 | 130 |
| United Airlines | 78% | 0.4% | 22 min | 4 | 1,392 |
| American Airlines | 77% | 2.4% | 25 min | 3 | 1,061 |
| Allegiant Air | 72% | 0.4% | 26 min | 3 | 242 |
| Envoy Air | 69% | 0.0% | 28 min | 2 | 273 |
| Spirit Airlines | 62% | 0.0% | 28 min | 1 | 39 |
Best time to fly out of BOI
On-time arrival rate by scheduled departure hour (local time).
- 5am93%1,674 flts
- 6am94%2,321 flts
- 7am92%2,449 flts
- 8am89%1,835 flts
- 9am84%815 flts
- 10am84%1,585 flts
- 11am89%1,097 flts
- 12pm82%1,454 flts
- 1pm81%2,266 flts
- 2pm80%1,850 flts
- 3pm80%1,064 flts
- 4pm72%1,270 flts
- 5pm75%1,329 flts
- 6pm73%1,083 flts
- 7pm70%1,028 flts
- 8pm73%253 flts
Monthly trend
Why departures were late
- Airline (crew, maintenance, cleaning, fueling)36%
- Late-arriving aircraft34%
- Air traffic control & airport congestion24%
- Extreme weather6%
- Security0%
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.