Route on-time record
GJT to DEN: most on-time flights and the best time to fly
Grand Junction (Grand Junction Regional Airport) to Denver (Denver International Airport). 2,203 nonstop flights in Jun 2025 to May 2026, 76% arrived within 15 minutes and 1.6% were cancelled. The most reliable flight number was SkyWest 4800 at 5:30 AM.
Flying on a specific date? We’ll adjust for the month, the weekday and the forecast.
GJT → DEN
Grand Junction to Denver: 2,203 nonstop flights a year
On time (12 months)
76%
Cancelled
1.6%
avg delay 20 min
Best time to leave
Before 9 AM
83% on time vs 61% 3 to 6 PM
Most reliable airline
United
78% chance on time
Lowest nonstop fare seen in the next two months: $221 (United 1877 on 2026-10-23). 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 · SkyWest 4800 · sold as United Express, Delta Connection, American Eagle or Alaska
5:30 AM → 6:51 AM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-31.
86%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.0%
- Avg arrival delay
- 16 min
- Arrived on time 87% of the time (330 flights, Jun 2025 to May 2026).
- Never cancelled in 330 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 83% on time; 3 to 6 PM: 61%).
Strong track record · 330 flights
Find 5:30 AM flight fares Opens this date on Aviasales#2 · United 2473
1:43 PM → 2:50 PM1h 07m nonstop
Local times, typical schedule. Last flown 2026-05-20.
84%
chance on time
- On time (history)
- 87%
- Cancelled
- 0.8%
- Avg arrival delay
- 9 min
- Arrived on time 87% of the time (132 flights, Jun 2025 to May 2026).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Moderate track record · 132 flights
Find United 2473 fares Opens this date on Aviasales#3 · United 1788
1:33 PM → 2:55 PM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
82%
chance on time
- On time (history)
- 91%
- Cancelled
- 0.0%
- Avg arrival delay
- 2 min
- Arrived on time 91% of the time (11 flights, Jun 2025 to May 2026).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
- Short track record (11 flights), so its score leans on the airline's record at this hour.
Limited track record · 11 flights
Find United 1788 fares Opens this date on Aviasales#4 · SkyWest 5588 · sold as United Express, Delta Connection, American Eagle or Alaska
9:31 AM → 10:53 AM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
81%
chance on time
- On time (history)
- 90%
- Cancelled
- 3.1%
- Avg arrival delay
- 3 min
- Arrived on time 90% of the time (31 flights, Jun 2025 to May 2026).
- Cancelled 3.1% of the time (1 of 32).
- Short track record (31 flights), so its score leans on the airline's record at this hour.
Limited track record · 31 flights
Find 9:31 AM flight fares Opens this date on Aviasales#5 · United 1877
7:01 AM → 8:14 AM1h 13m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 1125; its record covers all of them.
80%
chance on time
- On time (history)
- 82%
- Cancelled
- 0.3%
- Avg arrival delay
- 10 min
- Arrived on time 82% of the time (289 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 83% on time; 3 to 6 PM: 61%).
Strong track record · 289 flights
Find United 1877 fares Opens this date on Aviasales#6 · SkyWest 4709 · sold as United Express, Delta Connection, American Eagle or Alaska
11:24 AM → 12:45 PM1h 21m nonstop
Local times, typical schedule. Last flown 2026-05-31.
79%
chance on time
- On time (history)
- 81%
- Cancelled
- 1.9%
- Avg arrival delay
- 16 min
- Arrived on time 81% of the time (357 flights, Jun 2025 to May 2026).
Strong track record · 357 flights
Find 11:24 AM flight fares Opens this date on Aviasales#7 · SkyWest 5755 · sold as United Express, Delta Connection, American Eagle or Alaska
6:10 PM → 7:32 PM1h 22m nonstop
Local times, typical schedule. Last flown 2026-05-31.
63%
chance on time
- On time (history)
- 65%
- Cancelled
- 4.1%
- Avg arrival delay
- 29 min
- Arrived on time 65% of the time (347 flights, Jun 2025 to May 2026).
- Cancelled 4.1% of the time (15 of 362).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 347 flights
Find 6:10 PM flight fares Opens this date on Aviasales#8 · SkyWest 4635 · sold as United Express, Delta Connection, American Eagle or Alaska
3:40 PM → 4:45 PM1h 25m nonstop
Local times, typical schedule. Last flown 2026-05-31.
62%
chance on time
- On time (history)
- 63%
- Cancelled
- 2.8%
- Avg arrival delay
- 32 min
- Arrived on time 63% of the time (350 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (3 to 6 PM: 61% on time; Before 9 AM: 83%).
- Lands inside DEN's trouble window: 79% of its 174 ground stops and delay programs started between 2 PM and 8 PM.
Strong track record · 350 flights
Find 3:40 PM flight fares Opens this date on Aviasales
Airlines on this route
Season-adjusted chance of operating and arriving on time.
- United Airlines78%
733 flights · 79% on time as flown · 0.6% cancel
- SkyWest Airlines (sold as United Express, Delta Connection, American Eagle or Alaska)73%
1,470 flights · 74% on time as flown · 2.2% cancel
On time by departure time
All airlines, scheduled local departure, Jun 2025 to May 2026.
- Before 9 AM83%
696 flights · avg delay 13 min
- 9 AM to noon82%
415 flights · avg delay 15 min
- Noon to 3 PM79%
364 flights · avg delay 18 min
- 3 to 6 PM61%
427 flights · avg delay 35 min
- 6 to 9 PM69%
299 flights · avg delay 25 min
Smarter routing
Nearby airports that run more on time
MTJ → DEN 77% chance on time
Montrose Regional Airport to Denver International Airport · 1,414 flights a year · 55 mi from your airports · yours: 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.
What delays this route
- Airline (crew, maintenance, boarding)35%
- Air traffic control and airport volume29%
- Late-arriving aircraft26%
- Severe weather10%
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
GJT to DEN questions
- What time of day is best to fly GJT to DEN?
- Before 9 AM: 83% 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 GJT to DEN?
- United, with a season-adjusted 78% chance of operating and arriving on time over 733 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 GJT to DEN?
- August (68% on time); the best was October (85%), 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.
More routes from GJT
Live status: FAA delays and ground stops