Airport · CHA · Chattanooga, Tennessee
Chattanooga, TN
Chattanooga, TN posts above-median on-time performance among the 382 tracked U.S. airports, as a mid-size U.S. airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 66,136 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 83.6%
- On-time
- Top 47%
- on-time, US airports
- 81 min
- Delay when late
- 0.98%
- Cancelled
Key Performance Metrics
Total Flights
66,136
Best Month
Oct 94.2%
Worst Month
Jun 89.1%
Delayed
10,835
Cancelled
646
CHA on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where CHA sits among all 382 tracked airports
CHA's 83.6% on-time rate falls in the 80-85% band, the 192-airport band it shares.
National on-time-rate distribution
- 60-65% 1
1 airport between 60% and 65% on-time
1 airports
- 65-70% 4
4 airports between 65% and 70% on-time
4 airports
- 70-75% 9
9 airports between 70% and 75% on-time
9 airports
- 75-80% 48
48 airports between 75% and 80% on-time
48 airports
- 80-85%
192 airports between 80% and 85% on-time
192 airports
- 85-90%
116 airports between 85% and 90% on-time
116 airports
- 90-95% 12
12 airports between 90% and 95% on-time
12 airports
What this shows CHA is marked in the 80-85% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 449,539.
CHA - seasonal on-time pattern
Best: October (94.2%) · worst: June (89.1%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: October (94.2% on-time). Most delays: June (89.1% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 822 | 150 | 2 | 90.9% |
| November | 945 | 114 | 3 | 94.1% |
| October | 996 | 117 | 3 | 94.2% |
| September | 931 | 122 | 3 | 93.5% |
| August | 961 | 168 | 6 | 91.9% |
| July | 931 | 207 | 8 | 89.8% |
| June | 938 | 213 | 7 | 89.1% |
| May | 849 | 154 | 7 | 91.1% |
| April | 860 | 126 | 22 | 93.1% |
| March | 990 | 145 | 22 | 92.7% |
| February | 882 | 143 | 10 | 92.2% |
| January | 918 | 149 | 15 | 92.1% |
Year-Over-Year Performance
Annual flight volume and on-time trends at CHA.
CHA - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 10,278 | 1,218 | 130 | 88.1% |
| 2024 | 13,708 | 1,262 | 85 | 90.8% |
| 2023 | 11,653 | 887 | 45 | 92.4% |
| 2022 | 10,179 | 901 | 91 | 91.1% |
| 2021 | 10,250 | 530 | 57 | 94.8% |
| 2020 | 10,068 | 437 | 238 | 95.7% |
Cancellation & Diversion Analysis
Flight disruption statistics for Chattanooga, TN.
Cancellation Rate
0.98%
646 of 66,136 flights
Diversion Rate
0.08%
56 of 66,136 flights
Delay Rate
16.4%
10,835 of 66,136 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 694 | 107 | 99 | 3 | 0 |
| Nov 2025 | 893 | 84 | 104 | 11 | 1 |
| Oct 2025 | 1,042 | 97 | 115 | 3 | 1 |
| Sep 2025 | 910 | 74 | 79 | 3 | 3 |
| Aug 2025 | 812 | 93 | 107 | 5 | 2 |
| Jul 2025 | 976 | 120 | 127 | 9 | 2 |
| Jun 2025 | 902 | 170 | 171 | 18 | 2 |
| May 2025 | 714 | 87 | 107 | 12 | 2 |
| Apr 2025 | 812 | 88 | 95 | 10 | 1 |
| Mar 2025 | 819 | 98 | 99 | 12 | 0 |
| Feb 2025 | 746 | 93 | 90 | 16 | 1 |
| Jan 2025 | 958 | 107 | 118 | 28 | 1 |
| Dec 2024 | 1,196 | 134 | 141 | 2 | 0 |
| Nov 2024 | 1,394 | 84 | 79 | 1 | 0 |
| Oct 2024 | 1,255 | 71 | 57 | 3 | 0 |
| Sep 2024 | 1,177 | 84 | 89 | 5 | 0 |
| Aug 2024 | 1,096 | 97 | 109 | 6 | 1 |
| Jul 2024 | 1,056 | 145 | 164 | 19 | 0 |
| Jun 2024 | 1,094 | 107 | 111 | 3 | 1 |
| May 2024 | 1,172 | 160 | 157 | 11 | 1 |
| Apr 2024 | 1,183 | 113 | 104 | 7 | 3 |
| Mar 2024 | 1,148 | 97 | 94 | 3 | 1 |
| Feb 2024 | 994 | 54 | 59 | 1 | 0 |
| Jan 2024 | 943 | 116 | 117 | 24 | 1 |
Top Routes from CHA
Busiest routes to and from Chattanooga, TN.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| ATL (Atlanta) → CHA (Chattanooga) | 13,429 | 87.3% | 106 mi |
| CHA (Chattanooga) → ATL (Atlanta) | 13,428 | 89.3% | 106 mi |
| DFW (Dallas/Fort Worth) → CHA (Chattanooga) | 6,834 | 82.4% | 695 mi |
| CHA (Chattanooga) → DFW (Dallas/Fort Worth) | 6,832 | 80.6% | 695 mi |
| CHA (Chattanooga) → CLT (Charlotte) | 4,399 | 83.5% | 241 mi |
| CLT (Charlotte) → CHA (Chattanooga) | 4,399 | 81.3% | 241 mi |
| ORD (Chicago) → CHA (Chattanooga) | 3,032 | 77% | 501 mi |
| CHA (Chattanooga) → ORD (Chicago) | 3,031 | 77.8% | 501 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Chattanooga, TN's 83.6%.
Other Airports in Tennessee
Compare performance with other Tennessee airports.
Keep exploring
More flight data around Chattanooga, TN.
Tennessee flight data
Statewide on-time and delay aggregates, plus every reporting airport in Tennessee.
View TN data →Airport rankings
See where CHA sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put CHA head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About CHA
Chattanooga, TN in Chattanooga, Tennessee handled 66,136 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 83.6% on-time departure rate. Of those flights, 10,835 experienced delays, 646 were cancelled, and 56 were diverted. The cancellation rate works out to 0.98%, the diversion rate to 0.08%, and the average delay when departures run late is 81.4 minutes. These figures are the baseline for comparing CHA against other airports in the same state and nationally.
Breaking down what drives delays at CHA, Carrier leads the pack. Carrier accounts for 40.4% of total delay minutes, followed by Late Aircraft at 37.1% and NAS (National Aviation System) at 14.5%. Weather contributes 7.9% of delay minutes at this airport, while security holds the smallest share at 0.1%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, October runs the cleanest at CHA with a 94.2% on-time rate, while June is the roughest at 89.1% - a 5-point swing between best and worst month. Volume peaks in October, when average flights hit 996. The busiest route connecting CHA is to ATL (Atlanta), with 13,429 flights at a 87.3% on-time rate. Combine these numbers - 83.6% on-time, 81.4-minute average delay, 0.98% cancellation rate, and you have a concrete picture of departure reliability at Chattanooga, TN.
Frequently Asked Questions
What is the on-time performance rate at Chattanooga, TN (CHA)? ▼
What is the most common cause of delays at CHA? ▼
What is the average delay time at CHA? ▼
What is the best month to fly from CHA? ▼
What is the worst month for delays at CHA? ▼
How many routes operate from CHA? ▼
What is the cancellation rate at CHA? ▼
Flight Guides
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Read our methodology - how this data is sourced, computed, and verified.
Using CHA's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from CHA before you book a connection. See top routes
- Travel in October rather than June if your dates are flexible. Seasonal patterns
- Scores vary by airline and route within the same airport; check the specific carrier you're flying. Browse airlines
On-time rate reflects the BTS historical average across all reporting carriers at this airport, not any single flight or airline.
Related
Source: U.S. Bureau of Transportation Statistics (BTS) Airline on-time performance and operational reliability · 2025
Every figure on PlainFlights is rendered directly from BTS On-Time Performance data, no number is typed in by an editor. Airport figures are computed directly from BTS On-Time Performance data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.