Route Reliability

Route reliability

Denver (DEN) to Tampa (TPA): which airline is most on time?

On-time arrivals, cancellations and long delays for every airline that reported nonstop flights from Denver, CO (DEN) to Tampa, FL (TPA), September 2025 to August 2026.

Historical performance Official DOT data through August 2026 · Not live flight status

Denver, COTampa, FL

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Three-letter airport codes, nonstop U.S. domestic flights. One direction at a time.

Route at a glance · September 2025 to August 2026

DEN to TPA

Denver, CO to Tampa, FL

On time
76.5%vs 75.6% U.S. average About average
Cancelled
0.5%vs 1.9% U.S. average Better than average
60+ min late
7.5%vs 8.1% U.S. average About average
Scheduled flights
3,100in 12 months3 airlines
Most reliable airline
United Airlines81.6% on time · 1,186 flights

On time about as often as the U.S. average, with fewer cancellations.

Compared with all U.S. flights, September 2025 to August 2026. “About average” means within 1.5 points for on time, 0.3 for cancelled and 1 for 60+ minutes late.

Airlines on this route

Ranked by on-time arrival

Airlines from DEN to TPA, September 2025 to August 2026. Rates are shares of all scheduled flights.
Airline On time Cancelled 60+ min late Avg delay when late Diverted Flights
1. United Airlines Most reliable 81.6% 0.2% 6.6% 66 min 0.5% 1,186
2. Frontier Airlines 79.5% 1.0% 6.6% 83 min 0.2% 621
3. Southwest Airlines 70.4% 0.5% 8.7% 57 min 0.4% 1,293

On time = arrived within 15 minutes of schedule. Avg delay when late = average arrival delay of flights 15+ minutes late. "Most reliable" needs at least 300 flights in 12 months. Tap a heading to sort.

What this means

United Airlines has the strongest record on this route.

  • United Airlines had the best on-time record from Denver (DEN) to Tampa (TPA): 81.6% of its 1,186 scheduled flights arrived within 15 minutes of schedule, compared with 70.4% for Southwest Airlines.
  • 0.5% of flights on this route were cancelled (about 1 in 200), 1.4 points lower than the U.S. average of 1.9%.
  • 7.5% of flights, about 1 in 13, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 64 min.
  • Overall, 76.5% of flights on this route arrived on time, 0.9 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, November was the most reliable month on this route (83.3% on time) and June the least reliable (64.2%).
  • Cancellations peaked in October, when 3.3% of flights were cancelled.
  • Flights scheduled to depart 6 am to 7 am were the most punctual (91.1% on time); flights scheduled to depart 7 pm to 8 pm were the least (46.4%).
  • In the other direction, Tampa (TPA) to Denver (DEN), 80.3% of flights were on time and 0.4% were cancelled. Compare airlines TPA to DEN.

Best and worst months to fly DEN to TPA

Jan 76.8%
Feb 79.0%
Mar 72.8%
Apr 74.5%
May 70.2%
Jun 64.2%
Jul 65.1%
Aug 66.6%
Sep 78.2%
Oct 76.4%
Nov 83.3%
Dec 78.4%
Share of scheduled flights on time 12-month average 76.5%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 76.8% 810
February 79.0% 790
March 72.8% 1,034
April 74.5% 773
May 70.2% 781
June 64.2% 821
July 65.1% 854
August 66.6% 697
September 78.2% 634
October 76.4% 724
November 83.3% 783
December 78.4% 862
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
United Airlines November (88.8%) July (67.6%)
Frontier Airlines February (80.1%) March (63.2%)
Southwest Airlines November (79.6%) June (58.0%)

Month by month, last 12 months

Sep 80.6%
Oct 78.1%
Nov 90.1%
Dec 78.6%
Jan 87.8%
Feb 82.4%
Mar 72.8%
Apr 82.3%
May 71.6%
Jun 67.4%
Jul 68.5%
Aug 62.0%
Share of scheduled flights on time U.S. average 75.6%
All airlines combined, September 2025 to August 2026. Scale starts at zero.
Show as table
PeriodOn timeFlights
Sep 2025 80.6% 211
Oct 2025 78.1% 242
Nov 2025 90.1% 243
Dec 2025 78.6% 280
Jan 2026 87.8% 246
Feb 2026 82.4% 239
Mar 2026 72.8% 334
Apr 2026 82.3% 249
May 2026 71.6% 268
Jun 2026 67.4% 267
Jul 2026 68.5% 276
Aug 2026 62.0% 245

Best and worst departure times

<6a 89.1%
6a 91.1%
7a 83.3%
8a 86.9%
9a 84.7%
10a 75.4%
11a Insufficient sample
12p Insufficient sample
1p 79.8%
2p 79.3%
3p 54.9%
4p 57.8%
5p 67.7%
6p 65.0%
7p 46.4%
8p Insufficient sample
11p 78.7%
Share of scheduled flights on time
By scheduled local departure hour at DEN, September 2025 to August 2026. Hours with no scheduled flights are omitted. Scale starts at zero.
Show as table
PeriodOn timeFlights
Departing before 6 am 89.1% 183
Departing 6 am to 7 am 91.1% 191
Departing 7 am to 8 am 83.3% 162
Departing 8 am to 9 am 86.9% 122
Departing 9 am to 10 am 84.7% 452
Departing 10 am to 11 am 75.4% 203
Departing 11 am to noon Insufficient sample 39
Departing noon to 1 pm Insufficient sample 42
Departing 1 pm to 2 pm 79.8% 400
Departing 2 pm to 3 pm 79.3% 198
Departing 3 pm to 4 pm 54.9% 51
Departing 4 pm to 5 pm 57.8% 173
Departing 5 pm to 6 pm 67.7% 350
Departing 6 pm to 7 pm 65.0% 163
Departing 7 pm to 8 pm 46.4% 112
Departing 8 pm to 9 pm Insufficient sample 6
Departing 11 pm to midnight 78.7% 253
Woman at an airport window watching a plane take off
Photo: Depositphotos (licensed stock, illustrative only). Credits

Sources & data dates

Source
U.S. DOT Bureau of Transportation Statistics, Reporting Carrier On-Time Performance (1987-present)
Period
September 2025 to August 2026 (12 months); month-of-year patterns September 2023 to August 2026
Data through
August 2026
Processed
2026-11-03
Scope
Nonstop scheduled flights from Denver, CO (DEN) to Tampa, FL (TPA), one direction. Airlines that report to the DOT only.
Method
Rates use all scheduled flights as the denominator; cancelled and diverted flights count as not on time. Figures based on fewer than 50 scheduled flights are suppressed. Full methodology.

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