Route · TYS → DCA · 2020–2025 BTS data
Knoxville to Washington
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), TYS to DCA (Knoxville to Washington) ranks #2498 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 81.6%
- On-time
- +2.6 pts
- vs US avg
- 92 min
- Delay when late
- 4,949
- Flights
- #2498 of 4927
- Corpus placement
Cancelled
3.9%
Best Month
Nov 2024 89%
Worst Month
Feb 2025 54%
Distance
437 mi
Carriers
8
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 63 | 26 | 1 | 1 | OH |
| Nov 2025 | 84 | 25 | 3 | 0 | OH |
| Oct 2025 | 88 | 24 | 0 | 0 | OH |
| Sep 2025 | 86 | 18 | 0 | 0 | OH |
| Aug 2025 | 89 | 24 | 5 | 1 | YX,OH |
| Jul 2025 | 92 | 26 | 15 | 0 | OH,YX,MQ |
| Jun 2025 | 88 | 22 | 8 | 1 | OH,YX,MQ |
| May 2025 | 93 | 20 | 6 | 0 | OH,YX,MQ |
| Apr 2025 | 88 | 25 | 2 | 1 | OH |
| Mar 2025 | 93 | 32 | 3 | 0 | OH,YX |
| Feb 2025 | 81 | 37 | 10 | 0 | OH,YX |
| Jan 2025 | 83 | 27 | 8 | 0 | OH |
| Dec 2024 | 79 | 27 | 2 | 0 | MQ,OH |
| Nov 2024 | 107 | 12 | 0 | 2 | MQ,YX,OH |
| Oct 2024 | 89 | 15 | 0 | 0 | MQ,YX,OH |
| Sep 2024 | 86 | 13 | 1 | 0 | YX,OH,MQ |
| Aug 2024 | 88 | 16 | 2 | 0 | MQ,OH |
| Jul 2024 | 89 | 21 | 5 | 2 | MQ,OH |
| Jun 2024 | 85 | 16 | 0 | 0 | MQ,OH,YX |
| May 2024 | 88 | 22 | 0 | 0 | MQ,OH |
| Apr 2024 | 83 | 19 | 0 | 0 | MQ,OH |
| Mar 2024 | 83 | 17 | 0 | 0 | MQ,OH |
| Feb 2024 | 91 | 13 | 1 | 0 | MQ,OH |
| Jan 2024 | 106 | 30 | 10 | 0 | MQ,OH |
TYS–DCA seasonal on-time pattern
Best: September (86.4%) · weakest: January (76.3%)
Strongest calendar month
September
86.4% on-time · ~85 flights/mo
Busiest calendar month
November
~92 flights/mo avg
Weakest calendar month
January
76.3% on-time · ~89 flights/mo
Cancellation Rate
3.9%
82 of 2,102 flights
Diversion Rate
0.4%
8 of 2,102 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
TYS - Knoxville
Full on-time, delay-cause, and seasonal performance for Knoxville, TN.
TYS on-time profileDCA - Washington
Full on-time, delay-cause, and seasonal performance for Washington, DC.
DCA on-time profileCompare the two airports
See TYS and DCA side by side on delays, cancellations, and reliability.
Compare TYS vs DCAOrigin-hub reliability standing
Mid-pack among TYS departures
From TYS, this corridor sits with 6 other 75–85% on-time routes out of 14 tracked departures, not the hub's reliability leaders (6 at ≥85%) and not the softest ( 2 below 75%). Destination: Washington · fleet on-time rank #2531 of 4927.
Similar routes
Other BTS-tracked routes with comparable performance or trip length to TYS–DCA.
Routes with a similar on-time rate
What the Data Says About TYS to DCA
4,949 tracked flights put the TYS to DCA pairing (Knoxville to Washington) at a 81.6% on-time rate, squarely in line with the wider network. Delays that do occur run 91.6 minutes on average. Across the 437-mile route and its 8 carriers, the trailing 24 months show 3.9% cancelled and 0.4% diverted (2,102 flights sampled).
The monthly split is wide on this route: Nov 2024 posted the strongest performance at 89% on-time, while Feb 2025 came in at just 54% - a 35-point swing worth factoring into travel timing.
On the multi-year calendar, TYS–DCA peaks in September at 86.4% on-time while November carries the heaviest traffic (~92 flights per month) ; the softest month is January at 76.3%, a 10.1-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does TYS to DCA rank among US routes by traffic? ▼
How often are flights delayed from TYS to DCA? ▼
What is the cancellation rate for TYS to DCA? ▼
How far is the flight from TYS to DCA? ▼
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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.
Read our methodology - how this data is sourced, computed, and verified.
Using TYS–DCA data
TYS–DCA is mid-pack at 81.6% on-time; month and carrier mix move more than the corridor headline.
- Compare TYS and DCA airport profiles: delay causes and top routes differ even on the same corridor. TYS airport
- If your dates flex, September (86.4% on-time) beats January (76.3%) on this corridor. Seasonal chart
- 4 other routes post a similar 81.6% 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.
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.