Airport · SWO · Stillwater, Oklahoma
Stillwater, OK
Stillwater, OK posts top-quartile on-time performance among the 382 tracked U.S. airports, as a smaller regional airport. According to the U.S. DOT Bureau of Transportation Statistics, drawn from 8,044 flights (2020–2025); its biggest delay driver is carrier.
Data updated 2026-06-13
- 87.7%
- On-time
- Top 12%
- on-time, US airports
- 99 min
- Delay when late
- 1.40%
- Cancelled
Key Performance Metrics
Total Flights
8,044
Best Month
Aug 96%
Worst Month
Dec 92.7%
Delayed
991
Cancelled
113
SWO on-time rate vs. the national average
Ahead of the U.S. average across all 382 tracked airports.
Where SWO sits among all 382 tracked airports
SWO's 87.7% on-time rate falls in the 85-90% band, the 116-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 SWO is marked in the 85-90% band.
Delay Cause Breakdown
Top delay cause: Carrier. Total delay minutes: 55,140.
SWO - seasonal on-time pattern
Best: August (96%) · worst: December (92.7%)
Seasonal Performance Patterns
Monthly averages across all years of data. Best month: August (96% on-time). Most delays: December (92.7% on-time).
| Month | Avg Flights | Avg Delayed | Avg Cancelled | On-Time % |
|---|---|---|---|---|
| December | 114 | 18 | 1 | 92.7% |
| November | 108 | 15 | 1 | 93.3% |
| October | 123 | 16 | 1 | 94.1% |
| September | 115 | 10 | 1 | 95.9% |
| August | 112 | 11 | 1 | 96% |
| July | 122 | 15 | 1 | 94.9% |
| June | 109 | 17 | 1 | 93.8% |
| May | 104 | 16 | 1 | 94.2% |
| April | 106 | 14 | 4 | 93.9% |
| March | 114 | 14 | 2 | 95% |
| February | 102 | 9 | 3 | 95.6% |
| January | 113 | 12 | 2 | 94.4% |
Year-Over-Year Performance
Annual flight volume and on-time trends at SWO.
SWO - on-time rate by year
2020–2025, year-over-year trend.
| Year | Flights | Delayed | Cancelled | On-Time % |
|---|---|---|---|---|
| 2025 | 1,458 | 124 | 27 | 91.5% |
| 2024 | 1,460 | 93 | 15 | 93.6% |
| 2023 | 1,450 | 71 | 15 | 95.1% |
| 2022 | 1,442 | 68 | 16 | 95.3% |
| 2021 | 1,107 | 42 | 14 | 96.2% |
| 2020 | 1,127 | 46 | 26 | 95.9% |
Cancellation & Diversion Analysis
Flight disruption statistics for Stillwater, OK.
Cancellation Rate
1.40%
113 of 8,044 flights
Diversion Rate
0.06%
5 of 8,044 flights
Delay Rate
12.3%
991 of 8,044 flights
Monthly Performance
Recent 24 months of flight data.
| Period | Flights | Dep Delayed | Arr Delayed | Cancelled | Diverted |
|---|---|---|---|---|---|
| Dec 2025 | 124 | 20 | 29 | 0 | 0 |
| Nov 2025 | 118 | 17 | 20 | 3 | 0 |
| Oct 2025 | 124 | 8 | 11 | 0 | 0 |
| Sep 2025 | 120 | 7 | 7 | 2 | 1 |
| Aug 2025 | 124 | 6 | 11 | 0 | 0 |
| Jul 2025 | 124 | 7 | 16 | 3 | 0 |
| Jun 2025 | 120 | 5 | 16 | 3 | 0 |
| May 2025 | 124 | 9 | 5 | 1 | 0 |
| Apr 2025 | 120 | 18 | 13 | 4 | 0 |
| Mar 2025 | 124 | 12 | 12 | 2 | 1 |
| Feb 2025 | 112 | 6 | 7 | 5 | 0 |
| Jan 2025 | 124 | 9 | 9 | 4 | 0 |
| Dec 2024 | 122 | 6 | 5 | 3 | 0 |
| Nov 2024 | 118 | 11 | 13 | 1 | 0 |
| Oct 2024 | 124 | 11 | 11 | 0 | 0 |
| Sep 2024 | 120 | 6 | 6 | 0 | 0 |
| Aug 2024 | 124 | 6 | 7 | 0 | 0 |
| Jul 2024 | 124 | 7 | 7 | 0 | 1 |
| Jun 2024 | 120 | 9 | 9 | 0 | 0 |
| May 2024 | 124 | 10 | 20 | 5 | 0 |
| Apr 2024 | 120 | 11 | 15 | 1 | 0 |
| Mar 2024 | 124 | 4 | 11 | 0 | 1 |
| Feb 2024 | 116 | 4 | 2 | 0 | 0 |
| Jan 2024 | 124 | 8 | 6 | 5 | 0 |
Top Routes from SWO
Busiest routes to and from Stillwater, OK.
| Route | Flights | On-Time | Distance |
|---|---|---|---|
| DFW (Dallas/Fort Worth) → SWO (Stillwater) | 3,996 | 86.4% | 225 mi |
| SWO (Stillwater) → DFW (Dallas/Fort Worth) | 3,992 | 86.7% | 225 mi |
Airports With a Similar On-Time Rate
Other U.S. airports nationwide whose on-time rate is closest to Stillwater, OK's 87.7%.
Other Airports in Oklahoma
Compare performance with other Oklahoma airports.
Keep exploring
More flight data around Stillwater, OK.
Oklahoma flight data
Statewide on-time and delay aggregates, plus every reporting airport in Oklahoma.
View OK data →Airport rankings
See where SWO sits among U.S. airports on on-time rate and average delay.
Best on-time airports →Compare airports
Put SWO head-to-head with another airport on delays and reliability.
Open comparison tool →What the Data Says About SWO
Stillwater, OK in Stillwater, Oklahoma handled 8,044 flights in the Bureau of Transportation Statistics dataset between 2020 and 2025, posting a 87.7% on-time departure rate. Of those flights, 991 experienced delays, 113 were cancelled, and 5 were diverted. The cancellation rate works out to 1.40%, the diversion rate to 0.06%, and the average delay when departures run late is 99.0 minutes. These figures are the baseline for comparing SWO against other airports in the same state and nationally.
Breaking down what drives delays at SWO, Carrier leads the pack. Carrier accounts for 55.1% of total delay minutes, followed by Late Aircraft at 18.8% and Weather at 14.1%. Weather contributes 14.1% of delay minutes at this airport, while security holds the smallest share at 0.4%. Travelers often overestimate the weather share; the BTS categorization shows late-arriving aircraft and carrier operations as the larger contributors.
Seasonally, August runs the cleanest at SWO with a 96% on-time rate, while December is the roughest at 92.7% - a 3-point swing between best and worst month. Volume peaks in October, when average flights hit 123. The busiest route connecting SWO is to DFW (Dallas/Fort Worth), with 3,996 flights at a 86.4% on-time rate. Combine these numbers - 87.7% on-time, 99.0-minute average delay, 1.40% cancellation rate, and you have a concrete picture of departure reliability at Stillwater, OK.
Frequently Asked Questions
What is the on-time performance rate at Stillwater, OK (SWO)? ▼
What is the most common cause of delays at SWO? ▼
What is the average delay time at SWO? ▼
What is the best month to fly from SWO? ▼
What is the worst month for delays at SWO? ▼
How many routes operate from SWO? ▼
What is the cancellation rate at SWO? ▼
Flight Guides
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Using SWO's data
An airport-level on-time rate is a starting point, not a guarantee for your specific flight.
- Check the busiest route from SWO before you book a connection. See top routes
- Travel in August rather than December 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.