PlainFlights

Route · IAD → TPA · 2020–2025 BTS data

Washington to Tampa

According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), IAD to TPA (Washington to Tampa) ranks #2004 of 4927 tracked domestic routes by total flights (most flights = #1).

Data updated 2026-06-13

80.8%
On-time
+1.8 pts
vs US avg
74 min
Delay when late
6,273
Flights
#2004 of 4927
Corpus placement

Cancelled

1.3%

Best Month

Oct 2024 97%

Worst Month

Jul 2025 62%

Distance

811 mi

Carriers

5

Monthly Performance

Recent 24 months of route data.

Period Flights Delayed Cancelled Diverted Carriers
Dec 2025 114 22 0 0 F9,UA
Nov 2025 104 16 0 0 UA,F9
Oct 2025 107 17 1 0 UA,F9
Sep 2025 122 23 0 0 UA,F9
Aug 2025 129 30 1 1 F9,UA
Jul 2025 170 64 3 1 UA,F9
Jun 2025 141 52 3 2 UA,F9
May 2025 142 39 1 0 UA,F9
Apr 2025 151 22 0 0 F9,UA
Mar 2025 153 36 3 0 UA,F9
Feb 2025 112 27 1 0 UA,F9
Jan 2025 105 20 0 1 UA,F9
Dec 2024 108 16 0 0 F9,UA
Nov 2024 89 4 0 0 UA
Oct 2024 93 3 9 0 UA
Sep 2024 90 7 5 1 UA
Aug 2024 93 25 2 1 UA
Jul 2024 93 30 1 1 UA
Jun 2024 90 22 0 1 UA
May 2024 93 16 0 0 UA
Apr 2024 90 10 2 1 UA
Mar 2024 93 22 0 0 UA
Feb 2024 87 10 1 0 UA
Jan 2024 93 25 2 0 UA

IAD–TPA seasonal on-time pattern

Best: October (91.7%) · weakest: July (67.7%)

60%70%80%90%100% JanFebMarAprMayJunJulAugSepOctNovDec 82%

Strongest calendar month

October

91.7% on-time · ~84 flights/mo

Busiest calendar month

March

~100 flights/mo avg

Weakest calendar month

July

67.7% on-time · ~94 flights/mo

Cancellation Rate

1.3%

35 of 2,662 flights

Diversion Rate

0.4%

10 of 2,662 flights

Origin-hub reliability standing

Mid-pack among IAD departures

From IAD, this corridor sits with 42 other 75–85% on-time routes out of 58 tracked departures, not the hub's reliability leaders (14 at ≥85%) and not the softest ( 2 below 75%). Destination: Tampa · fleet on-time rank #2816 of 4927.

What the Data Says About IAD to TPA

6,273 tracked flights put the IAD to TPA pairing (Washington to Tampa) at a 80.8% on-time rate, squarely in line with the wider network. Delays that do occur run 73.8 minutes on average. Across the 811-mile route and its 5 carriers, the trailing 24 months show 1.3% cancelled and 0.4% diverted (2,662 flights sampled).

The monthly split is wide on this route: Oct 2024 posted the strongest performance at 97% on-time, while Jul 2025 came in at just 62% - a 34-point swing worth factoring into travel timing.

On the multi-year calendar, IAD–TPA peaks in October at 91.7% on-time while March carries the heaviest traffic (~100 flights per month) ; the softest month is July at 67.7%, a 24.0-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.

Frequently Asked Questions

Where does IAD to TPA rank among US routes by traffic?
According to PlainFlights' route traffic ranking, IAD to TPA ranks #2004 of 4927 tracked domestic routes by total flights (most flights = #1). That ordinal matches our busiest-routes listing (total_flights DESC). See /methodology#corpus-placement for the exact sort basis.
How often are flights delayed from IAD to TPA?
Flights from Washington to Tampa have a 80.8% on-time rate based on 6,273 flights. The average delay is 73.8 minutes. The best recent month was Oct 2024 with 97% on-time.
What is the cancellation rate for IAD to TPA?
Over the last 24 months, 1.3% of flights on this route were cancelled (35 of 2,662 flights) and 0.4% were diverted.
How far is the flight from IAD to TPA?
The flight distance from Washington (IAD) to Tampa (TPA) is approximately 811 miles. This route is served by 5 carriers.
When is the best time to fly from IAD to TPA?
The best recent month for on-time performance was Oct 2024 (97% on-time). The worst was Jul 2025 (62% on-time). Consider booking during months with historically better performance.

Airports on this route

Data source

Data Source: Bureau of Transportation Statistics (BTS), On-Time Performance Data. Statistics reflect cumulative performance across all available reporting periods.

Using IAD–TPA data

IAD–TPA is mid-pack at 80.8% on-time; month and carrier mix move more than the corridor headline.

  • Compare IAD and TPA airport profiles: delay causes and top routes differ even on the same corridor. IAD airport
  • If your dates flex, October (91.7% on-time) beats July (67.7%) on this corridor. Seasonal chart
  • 4 other routes post a similar 80.8% on-time rate; compare before you commit to this pairing. Similar routes

On-time rate reflects the BTS historical average across all reporting carriers on this origin–destination pair, not any single flight or booking recommendation.

Data sourced from U.S. Department of Transportation Bureau of Transportation Statistics (BTS) On-Time Performance data. See our methodology for details. Retrieved and formatted by PlainFlights

Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. This page aggregates this specific route's on-time performance and monthly trend, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.