Route · IAH → SGF · 2020–2025 BTS data
Houston to Springfield
The IAH–SGF corridor (Houston, TX → Springfield, MO) runs behind the national average, served by 3 carriers across roughly 513 miles.
Data updated 2026-06-13
- 76.1%
- On-time
- -2.9 pts
- vs US avg
- 111 min
- Delay when late
- 943
- Flights
Cancelled
2.8%
Best Month
Mar 2020 92%
Worst Month
Jun 2025 67%
Distance
513 mi
Carriers
3
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Aug 2025 | 34 | 8 | 0 | 0 | OO |
| Jul 2025 | 62 | 18 | 0 | 0 | OO |
| Jun 2025 | 63 | 21 | 4 | 1 | OO |
| May 2025 | 99 | 25 | 2 | 0 | OO |
| Apr 2025 | 76 | 17 | 0 | 1 | OO |
| Mar 2025 | 60 | 19 | 0 | 0 | OO |
| Feb 2025 | 50 | 12 | 2 | 1 | OO |
| Jan 2025 | 56 | 15 | 4 | 0 | OO |
| Dec 2024 | 46 | 20 | 0 | 0 | OO |
| Nov 2024 | 53 | 12 | 0 | 1 | OO |
| Oct 2024 | 62 | 16 | 0 | 0 | OO |
| Sep 2024 | 59 | 9 | 0 | 0 | OO |
| Aug 2024 | 46 | 12 | 0 | 0 | OO |
| Mar 2020 | 66 | 5 | 14 | 0 | EV,OO |
| Feb 2020 | 53 | 7 | 0 | 0 | EV,OO |
| Jan 2020 | 58 | 9 | 0 | 0 | OO,EV |
Cancellation Rate
2.8%
26 of 943 flights
Diversion Rate
0.4%
4 of 943 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
IAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
Origin airport →SGF - Springfield
Full on-time, delay-cause, and seasonal performance for Springfield, MO.
Destination airport →Compare the two airports
See IAH and SGF side by side on delays, cancellations, and reliability.
Open comparison tool →Similar routes
Other BTS-tracked routes with comparable performance or trip length to IAH–SGF.
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What the Data Says About IAH to SGF
The Houston to Springfield corridor (IAH to SGF) posts a 76.1% on-time rate on the lower edge of the average band, based on 943 tracked flights. Late flights run 110.7 minutes behind on average. 3 carriers cover the 513-mile route; over the last 24 months, 26 of 943 flights were cancelled (2.8%) and 0.4% diverted.
The monthly split is wide on this route: Mar 2020 posted the strongest performance at 92% on-time, while Jun 2025 came in at just 67% - a 26-point swing worth factoring into travel timing.
Frequently Asked Questions
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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.
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.