ATIS Alerts Smart Flight Search
Find the flight least likely to be delayed
BetaWe rank real flight numbers by how often they flew and arrived on time over the last 12 months, adjusted for your travel month and departure time, then check nearby airports and calmer connections. US airlines and airports.
BOI → SJC
Boise to San Jose: 660 nonstop flights a year
On time (12 months)
84%
Cancelled
0.2%
avg delay 10 min
Best time to leave
9 AM to noon
93% on time vs 61% 3 to 6 PM
Most reliable airline
SkyWest
91% chance on time
Fares open on our travel partner (Aviasales). Pick the flight number you chose here.
Best trips
5 nonstop. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.
Best overall#1 · Nonstop · 1h 53m
10:00 AM → 10:53 AM
96%
arrive on time
96% on time · 0.2% cancel10:00 AM BOI → 10:53 AM SJC1h 53m
SkyWest 3131 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 4–11 yrs oldFind 10:00 AM flight fares Opens this date on Aviasales#2 · Nonstop · 2h 00m
9:02 AM → 10:02 AM
91%
arrive on time
92% on time · 0.3% cancel9:02 AM BOI → 10:02 AM SJC2h 00m
SkyWest 3418 · sold as United Express, Delta Connection, American Eagle or Alaska
Embraer E175 · 8–11 yrs oldFind 9:02 AM flight fares Opens this date on Aviasales#3 · Nonstop · 1h 45m
2:15 PM → 3:00 PM
82%
arrive on time
82% on time · 0.0% cancel2:15 PM BOI → 3:00 PM SJC1h 45m
Southwest 4275
Boeing 737-700 · 18–23 yrs oldFind Southwest 4275 fares Opens this date on Aviasales#4 · Nonstop · 1h 45m
12:25 PM → 1:10 PM
81%
arrive on time
81% on time · 0.0% cancel12:25 PM BOI → 1:10 PM SJC1h 45m
Southwest 3532
Boeing 737-700 · 17–23 yrs oldFind Southwest 3532 fares Opens this date on Aviasales#5 · Nonstop · 1h 45m
1:20 PM → 2:05 PM
62%
arrive on time
62% on time · 0.0% cancel1:20 PM BOI → 2:05 PM SJC1h 45m
Southwest 864
Boeing 737 MAX 8 or 737-800 · 1–12 yrs oldFind Southwest 864 fares Opens this date on Aviasales
Aircraft and ages come from the planes each flight number actually flew in the last 3 months of data (FAA registry build years); airlines can swap planes.
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)91%
328 flights · 92% on time as flown · 0.3% cancel
- Southwest Airlines77%
332 flights · 76% on time as flown · 0.0% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM88%
78 flights · avg delay 8 min
- 9 AM to noon93%
271 flights · avg delay 5 min
- Noon to 3 PM88%
166 flights · avg delay 5 min
- 3 to 6 PM61%
131 flights · avg delay 24 min
Best day: Saturday (93%). Worst: Monday (82%).
Smarter routing
Nearby airports that run more on time
BOI → OAK 86% chance on time
Boise Air Terminal/Gowen Field to Oakland San Francisco Bay Airport · 599 flights a year · 29 mi from your airports · yours: 84%
Historical odds, not a guarantee. Built from the US DOT Bureau of Transportation Statistics on-time reports (Jun 2025 to May 2026), FAA ground stop and delay program advisories, and 20 years of airport weather observations. Covers US airlines that report to the DOT; schedules are flights operated recently, so confirm times when you book. ATIS Alerts is not affiliated with any airline. Fares are what Aviasales travelers saw in recent searches (USD, one way, 1 adult), not live quotes; the partner site shows the current price. Fare links go to our travel partner and may earn us a commission at no cost to you. Affiliate disclosure