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ATIS Alerts Smart Flight Search

Find the flight least likely to be delayed

Beta

We 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.

SMF → LAS

Sacramento to Las Vegas: 4,380 nonstop flights a year

On time (12 months)

80%

Cancelled

0.6%

avg delay 13 min

Best time to leave

Before 9 AM

94% on time vs 60% after 9 PM

Most reliable airline

SkyWest

88% chance on time

Check SMF to LAS fares

Lowest nonstop fare seen in the next two months: $69 (Frontier 2070 on 2026-11-11). Fares open on our travel partner (Aviasales). Pick the flight number you chose here.

Best trips

20 nonstop, 26 with 1 connection. Best overall weighs the chance you arrive on time as booked, connection odds, travel time and separate tickets.

  1. Best overall#1 · Nonstop · 1h 30m

    8:45 AM → 10:15 AM

    94%

    arrive on time

    8:45 AM SMF → 10:15 AM LAS1h 30m

    Southwest 4519

    Boeing 737 MAX 8 or 737-800 · 3–13 yrs old
    94% on time · 0.3% cancel
    Find Southwest 4519 fares Opens this date on Aviasales

  2. #2 · Nonstop · 1h 25m

    8:05 AM → 9:30 AM

    92%

    arrive on time

    8:05 AM SMF → 9:30 AM LAS1h 25m

    Southwest 2705 · also flew as 1211

    Boeing 737-700 · 4–22 yrs old
    93% on time · 0.2% cancel
    Find Southwest 2705 fares Opens this date on Aviasales

  3. #3 · Nonstop · 1h 25m

    5:25 AM → 6:50 AM

    92%

    arrive on time

    5:25 AM SMF → 6:50 AM LAS1h 25m

    Southwest 4338

    Boeing 737 MAX 8 or 737-700 · 3–22 yrs old
    93% on time · 0.2% cancel
    Find Southwest 4338 fares Opens this date on Aviasales

  4. #4 · Nonstop · 1h 25m

    5:15 AM → 6:40 AM

    92%

    arrive on time

    5:15 AM SMF → 6:40 AM LAS1h 25m

    Southwest 742

    Boeing 737-800 or 737 MAX 8 · 1–12 yrs old
    92% on time · 0.3% cancel
    Find Southwest 742 fares Opens this date on Aviasales

  5. #5 · Nonstop · 1h 25m

    6:35 AM → 8:00 AM

    90%

    arrive on time

    6:35 AM SMF → 8:00 AM LAS1h 25m

    Southwest 3433

    Boeing 737 MAX 8 or 737-800 · 1–12 yrs old
    91% on time · 0.2% cancel
    Find Southwest 3433 fares Opens this date on Aviasales

  6. #6 · Nonstop · 1h 30m

    9:20 AM → 10:50 AM

    89%

    arrive on time

    9:20 AM SMF → 10:50 AM LAS1h 30m

    Southwest 2177

    Boeing 737-700 · 15–23 yrs old
    89% on time · 0.3% cancel
    Find Southwest 2177 fares Opens this date on Aviasales

  7. #7 · Nonstop · 1h 30m

    9:05 AM → 10:35 AM

    88%

    arrive on time

    9:05 AM SMF → 10:35 AM LAS1h 30m

    Southwest 2715

    Boeing 737-700 · 8–22 yrs old
    89% on time · 0.3% cancel
    Find Southwest 2715 fares Opens this date on Aviasales

  8. #8 · Nonstop · 1h 25m

    7:05 AM → 8:30 AM

    86%

    arrive on time

    7:05 AM SMF → 8:30 AM LAS1h 25m

    Southwest 2722

    Boeing 737 MAX 8 or 737-800 · 1–10 yrs old
    87% on time · 0.8% cancel
    Find Southwest 2722 fares Opens this date on Aviasales

  9. #9 · Nonstop · 1h 30m

    11:55 AM → 1:25 PM

    83%

    arrive on time

    11:55 AM SMF → 1:25 PM LAS1h 30m

    Southwest 2588

    Boeing 737-700 or 737 MAX 8 · 3–22 yrs old
    83% on time · 0.2% cancel
    Find Southwest 2588 fares Opens this date on Aviasales

  10. #10 · Nonstop · 1h 30m

    7:05 PM → 8:35 PM

    81%

    arrive on time

    7:05 PM SMF → 8:35 PM LAS1h 30m

    Southwest 346

    Boeing 737-700 or 737 MAX 8 · 4–22 yrs old
    81% on time · 0.7% cancel
    Find Southwest 346 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)88%

    495 flights · 90% on time as flown · 1.1% cancel

  • Spirit Airlines81%

    257 flights · 83% on time as flown · 1.4% cancel

  • Southwest Airlines78%

    3,430 flights · 79% on time as flown · 0.3% cancel

  • Frontier Airlines74%

    198 flights · 73% on time as flown · 1.7% cancel

On time by departure time

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

  • Before 9 AM94%

    1,156 flights · avg delay 4 min

  • 9 AM to noon86%

    644 flights · avg delay 8 min

  • Noon to 3 PM76%

    821 flights · avg delay 14 min

  • 3 to 6 PM73%

    873 flights · avg delay 18 min

  • 6 to 9 PM70%

    714 flights · avg delay 19 min

  • After 9 PM60%

    172 flights · avg delay 24 min

Best day: Wednesday (87%). Worst: Friday (74%).

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