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Route on-time record

DEN to XWA: most on-time flights and the best time to fly

Denver (Denver International Airport) to Williston (Williston Basin International Airport). 1,452 nonstop flights in Jun 2025 to May 2026, 77% arrived within 15 minutes and 1.2% were cancelled. The most reliable flight number was SkyWest 5293 at 8:00 AM.

Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.

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DEN → XWA

Denver to Williston: 1,452 nonstop flights a year

On time (12 months)

77%

Cancelled

1.2%

avg delay 22 min

Best time to leave

Before 9 AM

84% on time vs 61% 3 to 6 PM

Most reliable airline

SkyWest

76% chance on time

Check DEN to XWA fares

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

Most reliable nonstop flights

Ranked by the chance the flight operates and arrives within 15 minutes of schedule, from Jun 2025 to May 2026 records.

  1. #1 · SkyWest 5293 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:00 AM → 10:52 AM1h 52m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    84%
    Cancelled
    0.0%
    Avg arrival delay
    8 min
    • Arrived on time 84% of the time (129 flights, Jun 2025 to May 2026).
    • Never cancelled in 131 scheduled flights.
    • Leaves in this route's most on-time window (Before 9 AM: 84% on time; 3 to 6 PM: 61%).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Moderate track record · 129 flights

    Find 8:00 AM flight fares Opens this date on Aviasales

  2. #2 · SkyWest 5302 · sold as United Express, Delta Connection, American Eagle or Alaska

    11:40 AM → 2:41 PM2h 01m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    83%

    chance on time

    On time (history)
    85%
    Cancelled
    1.4%
    Avg arrival delay
    13 min
    • Arrived on time 85% of the time (138 flights, Jun 2025 to May 2026).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Moderate track record · 138 flights

    Find 11:40 AM flight fares Opens this date on Aviasales

  3. #3 · SkyWest 5261 · sold as United Express, Delta Connection, American Eagle or Alaska

    8:50 PM → 11:44 PM1h 54m nonstop

    Local times, typical schedule. Last flown 2026-05-19.

    80%

    chance on time

    On time (history)
    82%
    Cancelled
    1.9%
    Avg arrival delay
    22 min
    • Arrived on time 82% of the time (252 flights, Jun 2025 to May 2026).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Strong track record · 252 flights

    Find 8:50 PM flight fares Opens this date on Aviasales

  4. #4 · SkyWest 5463 · sold as United Express, Delta Connection, American Eagle or Alaska

    1:40 PM → 4:36 PM1h 56m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    80%

    chance on time

    On time (history)
    81%
    Cancelled
    1.1%
    Avg arrival delay
    23 min
    • Arrived on time 81% of the time (176 flights, Jun 2025 to May 2026).
    • Departs outside DEN's trouble window (2 PM to 8 PM, when 79% of its 174 ground stops and delay programs started).

    Moderate track record · 176 flights

    Find 1:40 PM flight fares Opens this date on Aviasales

  5. #5 · SkyWest 4721 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:05 PM → 10:00 PM1h 55m nonstop

    Local times, typical schedule. Last flown 2026-05-31.

    68%

    chance on time

    On time (history)
    64%
    Cancelled
    0.0%
    Avg arrival delay
    15 min
    • Arrived on time 64% of the time (11 flights, Jun 2025 to May 2026).
    • Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Limited track record · 11 flights

    Find 7:05 PM flight fares Opens this date on Aviasales

  6. #6 · SkyWest 5222 · sold as United Express, Delta Connection, American Eagle or Alaska

    7:12 PM → 10:06 PM1h 54m nonstop

    Local times, typical schedule. Last flown 2026-05-20.

    64%

    chance on time

    On time (history)
    62%
    Cancelled
    2.4%
    Avg arrival delay
    18 min
    • Arrived on time 62% of the time (82 flights, Jun 2025 to May 2026).
    • Departs inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.

    Moderate track record · 82 flights

    Find 7:12 PM flight fares Opens this date on Aviasales

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)76%

    1,452 flights · 77% on time as flown · 1.2% cancel

On time by departure time

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

  • Before 9 AM84%

    131 flights · avg delay 8 min

  • 9 AM to noon78%

    364 flights · avg delay 16 min

  • Noon to 3 PM83%

    301 flights · avg delay 13 min

  • 3 to 6 PM61%

    149 flights · avg delay 63 min

  • 6 to 9 PM74%

    353 flights · avg delay 22 min

  • After 9 PM77%

    154 flights · avg delay 25 min

Best day: Tuesday (82%). Worst: Sunday (75%).

On time by month

All airlines, Jun 2023 to May 2026. Several years per month, so one stormy season doesn't define a month. Travel-month estimates use this seasonal pattern.

J
72
F
74
M
81
A
79
M
79
J
74
J
75
A
79
S
88
O
87
N
82
D
80

What delays this route

  • Airline (crew, maintenance, boarding)37%
  • Late-arriving aircraft35%
  • Severe weather15%
  • Air traffic control and airport volume13%

Share of delay minutes by the cause airlines report to the US DOT.

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

Finding the most reliable connections from DEN to XWA…

DEN to XWA questions

What time of day is best to fly DEN to XWA?
Before 9 AM: 84% of flights arrived on time, against 61% for departures 3 to 6 PM. Later flights inherit delays from earlier ones, so the first departures of the day usually run best.
Which airline is most on time from DEN to XWA?
SkyWest, with a season-adjusted 76% chance of operating and arriving on time over 1,452 flights. The adjustment compares each airline with what the route did in the months it flew, so a carrier that skipped a stormy month gets no free credit.
What is the worst month for delays on DEN to XWA?
January (72% on time); the best was September (88%), averaged over Jun 2023 to May 2026.
Is this a prediction for my flight?
No. These are historical odds from the US DOT on-time reports, FAA advisories and airport weather records. Check your flight status and the FAA delay board on the day you fly.

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Live status: FAA delays and ground stops