Route on-time record

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

Tampa (Tampa International Airport) to Denver (Denver International Airport). 3,107 nonstop flights in Jun 2025 to May 2026, 81% arrived within 15 minutes and 0.4% were cancelled. The most reliable flight number was United 1888 at 10:00 AM.

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

TPA → DEN

Tampa to Denver: 3,107 nonstop flights a year

On time (12 months)

81%

Cancelled

0.4%

avg delay 13 min

Best time to leave

Before 9 AM

91% on time vs 67% 6 to 9 PM

Most reliable airline

United

84% chance on time

Check TPA to DEN 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 · United 1888
10:00 AM → 12:15 PM4h 15m nonstop
Local times, typical schedule. Last flown 2026-03-28.
94%
chance on time
On time (history)
98%
Cancelled
0.0%
Avg arrival delay
1 min
- Arrived on time 98% of the time (59 flights, Jun 2025 to May 2026).
- Never cancelled in 60 scheduled flights.
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
- Short track record (59 flights), so its score leans on the airline's record at this hour.
Limited track record · 59 flights
Find United 1888 fares Opens this date on Aviasales
#2 · United 2154
8:00 AM → 10:02 AM4h 02m nonstop
Local times, typical schedule. Last flown 2026-05-31. Same departure also flew as United 295, 1476, 1320; its record covers all of them.
92%
chance on time
On time (history)
93%
Cancelled
0.0%
Avg arrival delay
5 min
- Arrived on time 93% of the time (88 flights, Jun 2025 to May 2026).
- Never cancelled in 88 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
Moderate track record · 88 flights
Find United 2154 fares Opens this date on Aviasales
#3 · Southwest 3734
5:00 AM → 6:55 AM3h 55m nonstop
Local times, typical schedule. Last flown 2026-05-31.
91%
chance on time
On time (history)
95%
Cancelled
0.0%
Avg arrival delay
2 min
- Arrived on time 95% of the time (55 flights, Jun 2025 to May 2026).
- Never cancelled in 55 scheduled flights.
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
Limited track record · 55 flights
Find Southwest 3734 fares Opens this date on Aviasales
#4 · United 645
12:00 PM → 2:12 PM4h 12m nonstop
Local times, typical schedule. Last flown 2026-05-31.
90%
chance on time
On time (history)
92%
Cancelled
0.0%
Avg arrival delay
9 min
- Arrived on time 92% of the time (109 flights, Jun 2025 to May 2026).
- Never cancelled in 109 scheduled flights.
- Departs inside TPA's trouble window: 76% of its 25 ground stops and delay programs started between noon and 6 PM.
- 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 · 109 flights
Find United 645 fares Opens this date on Aviasales
#5 · Southwest 3977
5:25 AM → 7:30 AM4h 05m nonstop
Local times, typical schedule. Last flown 2026-04-06.
88%
chance on time
On time (history)
90%
Cancelled
6.1%
Avg arrival delay
2 min
- Arrived on time 90% of the time (31 flights, Jun 2025 to May 2026).
- Cancelled 6.1% of the time (2 of 33).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
Limited track record · 31 flights
Find Southwest 3977 fares Opens this date on Aviasales
#6 · Southwest 3335
8:15 AM → 10:15 AM4h 00m nonstop
Local times, typical schedule. Last flown 2026-05-29.
87%
chance on time
On time (history)
87%
Cancelled
0.0%
Avg arrival delay
8 min
- Arrived on time 87% of the time (23 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 3335 fares Opens this date on Aviasales
#7 · Southwest 819
8:05 AM → 10:15 AM4h 10m nonstop
Local times, typical schedule. Last flown 2026-04-06.
86%
chance on time
On time (history)
86%
Cancelled
0.0%
Avg arrival delay
8 min
- Arrived on time 86% of the time (28 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
- Short track record (28 flights), so its score leans on the airline's record at this hour.
Limited track record · 28 flights
Find Southwest 819 fares Opens this date on Aviasales
#8 · United 1544
8:15 PM → 10:30 PM4h 15m nonstop
Local times, typical schedule. Last flown 2026-03-28.
84%
chance on time
On time (history)
88%
Cancelled
5.6%
Avg arrival delay
5 min
- Arrived on time 88% of the time (17 flights, Jun 2025 to May 2026).
- Leaves in this route's least on-time window (6 to 9 PM: 67% on time; Before 9 AM: 91%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
- Short track record (17 flights), so its score leans on the airline's record at this hour.
Limited track record · 17 flights
Find United 1544 fares Opens this date on Aviasales
#9 · Frontier 1113
6:00 AM → 8:18 AM4h 10m nonstop
Local times, typical schedule. Last flown 2026-05-31.
83%
chance on time
On time (history)
84%
Cancelled
1.1%
Avg arrival delay
15 min
- Arrived on time 84% of the time (263 flights, Jun 2025 to May 2026).
- Leaves in this route's most on-time window (Before 9 AM: 91% on time; 6 to 9 PM: 67%).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
Strong track record · 263 flights
Find Frontier 1113 fares Opens this date on Aviasales
#10 · Southwest 4112
10:45 AM → 12:50 PM4h 05m nonstop
Local times, typical schedule. Last flown 2026-05-29.
81%
chance on time
On time (history)
78%
Cancelled
0.0%
Avg arrival delay
7 min
- Arrived on time 78% of the time (23 flights, Jun 2025 to May 2026).
- Departs outside TPA's trouble window (noon to 6 PM, when 76% of its 25 ground stops and delay programs started).
- Short track record (23 flights), so its score leans on the airline's record at this hour.
Limited track record · 23 flights
Find Southwest 4112 fares Opens this date on Aviasales

Airlines on this route

Season-adjusted chance of operating and arriving on time.

United Airlines84%
1,186 flights · 84% on time as flown · 0.3% cancel
Southwest Airlines79%
1,322 flights · 79% on time as flown · 0.2% cancel
Frontier Airlines78%
599 flights · 78% on time as flown · 0.7% cancel

On time by departure time

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

Before 9 AM91%
1,005 flights · avg delay 7 min
9 AM to noon86%
389 flights · avg delay 6 min
Noon to 3 PM87%
574 flights · avg delay 10 min
3 to 6 PM69%
766 flights · avg delay 20 min
6 to 9 PM67%
301 flights · avg delay 26 min

Best day: Wednesday (82%). Worst: Sunday (77%).

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

Late-arriving aircraft38%
Air traffic control and airport volume29%
Airline (crew, maintenance, boarding)28%
Severe weather5%

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

TPA to DEN questions

What time of day is best to fly TPA to DEN?: Before 9 AM: 91% of flights arrived on time, against 67% for departures 6 to 9 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 TPA to DEN?: United, with a season-adjusted 84% chance of operating and arriving on time over 1,186 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 TPA to DEN?: June (66% on time); the best was November (87%), 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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