Route Reliability

Route reliability

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

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

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

Tampa, FLDenver, CO

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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

TPA to DEN

Tampa, FL to Denver, CO

On time
80.3%vs 75.6% U.S. average Better than average
Cancelled
0.4%vs 1.9% U.S. average Better than average
60+ min late
6.5%vs 8.1% U.S. average Better than average
Scheduled flights
3,089in 12 months3 airlines
Most reliable airline
United Airlines84.5% on time · 1,185 flights

On time more often than 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 TPA to DEN, 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 84.5% 0.2% 5.7% 71 min 0.7% 1,185
2. Southwest Airlines 77.8% 0.2% 6.2% 52 min 0.6% 1,281
3. Frontier Airlines 77.7% 1.0% 8.5% 93 min 0.2% 623

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 Tampa (TPA) to Denver (DEN): 84.5% of its 1,185 scheduled flights arrived within 15 minutes of schedule, compared with 77.7% for Frontier Airlines.
  • 0.4% of flights on this route were cancelled, 1.5 points lower than the U.S. average of 1.9%.
  • 6.5% of flights, about 1 in 15, arrived an hour or more late. When a flight was late (15+ minutes), the average arrival delay was 67 min.
  • Overall, 80.3% of flights on this route arrived on time, 4.7 points higher than the U.S. average of 75.6%.
  • Over the last 3 years, November was the most reliable month on this route (86.9% on time) and August the least reliable (66.5%).
  • Cancellations peaked in October, when 3.8% of flights were cancelled.
  • Flights scheduled to depart before 6 am were the most punctual (93.8% on time); flights scheduled to depart 5 pm to 6 pm were the least (62.4%).
  • In the other direction, Denver (DEN) to Tampa (TPA), 76.5% of flights were on time and 0.5% were cancelled. Compare airlines DEN to TPA.

Best and worst months to fly TPA to DEN

Jan 80.5%
Feb 83.1%
Mar 75.2%
Apr 80.2%
May 75.3%
Jun 70.5%
Jul 72.4%
Aug 66.5%
Sep 83.8%
Oct 82.6%
Nov 86.9%
Dec 83.7%
Share of scheduled flights on time 12-month average 80.3%
All airlines combined, by calendar month, September 2023 to August 2026 (3 years pooled). Scale starts at zero.
Show as table
PeriodOn timeFlights
January 80.5% 812
February 83.1% 781
March 75.2% 1,033
April 80.2% 778
May 75.3% 784
June 70.5% 821
July 72.4% 850
August 66.5% 690
September 83.8% 634
October 82.6% 736
November 86.9% 787
December 83.7% 860
Best and worst calendar month by airline, September 2023 to August 2026.
AirlineBest monthWorst month
United Airlines November (90.8%) August (69.9%)
Southwest Airlines November (83.1%) August (67.8%)
Frontier Airlines November (87.3%) August (57.0%)

Month by month, last 12 months

Sep 86.3%
Oct 80.5%
Nov 85.7%
Dec 82.0%
Jan 85.0%
Feb 84.5%
Mar 81.7%
Apr 85.6%
May 82.1%
Jun 73.0%
Jul 74.4%
Aug 64.0%
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 86.3% 212
Oct 2025 80.5% 241
Nov 2025 85.7% 245
Dec 2025 82.0% 278
Jan 2026 85.0% 247
Feb 2026 84.5% 238
Mar 2026 81.7% 334
Apr 2026 85.6% 250
May 2026 82.1% 268
Jun 2026 73.0% 267
Jul 2026 74.4% 273
Aug 2026 64.0% 236

Best and worst departure times

<6a 93.8%
6a 88.0%
7a 91.2%
8a 92.4%
9a 82.4%
10a 85.8%
11a 86.7%
12p 88.2%
1p 84.5%
2p Insufficient sample
3p 73.3%
4p 68.0%
5p 62.4%
6p Insufficient sample
7p 65.9%
8p 67.3%
9p Insufficient sample
10p Insufficient sample
Share of scheduled flights on time
By scheduled local departure hour at TPA, 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 93.8% 177
Departing 6 am to 7 am 88.0% 192
Departing 7 am to 8 am 91.2% 193
Departing 8 am to 9 am 92.4% 408
Departing 9 am to 10 am 82.4% 91
Departing 10 am to 11 am 85.8% 183
Departing 11 am to noon 86.7% 75
Departing noon to 1 pm 88.2% 476
Departing 1 pm to 2 pm 84.5% 97
Departing 2 pm to 3 pm Insufficient sample 38
Departing 3 pm to 4 pm 73.3% 172
Departing 4 pm to 5 pm 68.0% 341
Departing 5 pm to 6 pm 62.4% 266
Departing 6 pm to 7 pm Insufficient sample 29
Departing 7 pm to 8 pm 65.9% 85
Departing 8 pm to 9 pm 67.3% 217
Departing 9 pm to 10 pm Insufficient sample 23
Departing 10 pm to 11 pm Insufficient sample 26
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 Tampa, FL (TPA) to Denver, CO (DEN), 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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