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Reliable Flight Search results

San Jose (SJC) → Boise (BOI)

Best trips

2 nonstop · ranked by overall best · published legroom for 2 of 2

  1. Our best overall pick

    87% chance you arrive on time · nonstop · 30 in legroom · planes about 9 years old · 1h 44m

    Top pick#1 · Nonstop · 1h 44m

    7:22 PM → 10:07 PM

    68

    score

    price

    live on Aviasales

    87%

    arrive on time

    7:22 PM SJC → 10:07 PM BOI1h 44m

    SkyWest 3413 · sold as United Express, Delta Connection, American Eagle or Alaska

    Embraer E175 · 4–11 yrs oldLegroom 30–32 in · 18–19.3 in wide · Main Cabin
    87% on time · 0.3% cancel
    Find 7:22 PM flight fares Opens this date on Aviasales
  2. #2 · Nonstop · 1h 40m

    3:40 PM → 6:20 PM

    44

    score

    price

    live on Aviasales

    70%

    arrive on time

    3:40 PM SJC → 6:20 PM BOI1h 40m

    Southwest 1547

    Boeing 737-700 · 18–23 yrs oldLegroom 31–36 in · 15.5–17 in wide · Economy (all seating types)
    70% on time · 0.0% cancel
    Find Southwest 1547 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. Legroom is the seat pitch the airline or a seat-map source publishes for that aircraft and cabin; we never estimate it, and seat maps change, so check the airline’s seat map when you book.

SJC → BOI

San Jose to Boise: 677 nonstop flights a year

On time (12 months)

87%

Cancelled

0.1%

avg delay 8 min

Best time to leave

9 AM to noon

93% on time vs 80% 3 to 6 PM

Most reliable airline

SkyWest

87% chance on time

Check SJC to BOI fares

Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

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)87%

    345 flights · 87% on time as flown · 0.2% cancel

  • Southwest Airlines86%

    332 flights · 86% on time as flown · 0.0% cancel

On time by departure time

All airlines, scheduled local departure, Jun 2025 to May 2026.

  • 9 AM to noon93%

    197 flights · avg delay 4 min

  • Noon to 3 PM82%

    46 flights · avg delay 7 min

  • 3 to 6 PM80%

    210 flights · avg delay 12 min

  • 6 to 9 PM87%

    200 flights · avg delay 8 min

Best day: Tuesday (89%). Worst: Thursday (80%).

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