Route · SNA → IAH · 2020–2025 BTS data
Santa Ana to Houston
According to PlainFlights' route traffic ranking (BTS On-Time Performance total flights), SNA to IAH (Santa Ana to Houston) ranks #1848 of 4927 tracked domestic routes by total flights (most flights = #1).
Data updated 2026-06-13
- 88.2%
- On-time
- +9.2 pts
- vs US avg
- 79 min
- Delay when late
- 6,837
- Flights
- #1848 of 4927
- Corpus placement
Cancelled
0.8%
Best Month
Oct 2025 97%
Worst Month
Jul 2024 73%
Distance
1,346 mi
Carriers
1
Monthly Performance
Recent 24 months of route data.
| Period | Flights | Delayed | Cancelled | Diverted | Carriers |
|---|---|---|---|---|---|
| Dec 2025 | 93 | 10 | 0 | 0 | UA |
| Nov 2025 | 89 | 13 | 0 | 0 | UA |
| Oct 2025 | 93 | 3 | 0 | 1 | UA |
| Sep 2025 | 90 | 7 | 0 | 0 | UA |
| Aug 2025 | 93 | 17 | 0 | 0 | UA |
| Jul 2025 | 93 | 20 | 1 | 3 | UA |
| Jun 2025 | 90 | 18 | 1 | 0 | UA |
| May 2025 | 93 | 19 | 0 | 0 | UA |
| Apr 2025 | 90 | 5 | 0 | 0 | UA |
| Mar 2025 | 118 | 8 | 0 | 0 | UA |
| Feb 2025 | 108 | 5 | 0 | 0 | UA |
| Jan 2025 | 120 | 12 | 4 | 0 | UA |
| Dec 2024 | 118 | 26 | 0 | 2 | UA |
| Nov 2024 | 89 | 9 | 0 | 0 | UA |
| Oct 2024 | 93 | 7 | 0 | 0 | UA |
| Sep 2024 | 90 | 4 | 0 | 0 | UA |
| Aug 2024 | 111 | 11 | 0 | 1 | UA |
| Jul 2024 | 124 | 33 | 7 | 1 | UA |
| Jun 2024 | 120 | 17 | 1 | 2 | UA |
| May 2024 | 101 | 22 | 2 | 1 | UA |
| Apr 2024 | 90 | 10 | 0 | 1 | UA |
| Mar 2024 | 119 | 5 | 0 | 1 | UA |
| Feb 2024 | 112 | 8 | 0 | 0 | UA |
| Jan 2024 | 113 | 6 | 4 | 1 | UA |
SNA–IAH seasonal on-time pattern
Best: October (92.5%) · weakest: July (79.1%)
Strongest calendar month
October
92.5% on-time · ~93 flights/mo
Busiest calendar month
January
~107 flights/mo avg
Weakest calendar month
July
79.1% on-time · ~102 flights/mo
Cancellation Rate
0.8%
20 of 2,450 flights
Diversion Rate
0.6%
14 of 2,450 flights
Explore origin & destination
On-time and delay data for the airports this route connects.
SNA - Santa Ana
Full on-time, delay-cause, and seasonal performance for Santa Ana, CA.
SNA on-time profileIAH - Houston
Full on-time, delay-cause, and seasonal performance for Houston, TX.
IAH on-time profileCompare the two airports
See SNA and IAH side by side on delays, cancellations, and reliability.
Compare SNA vs IAHOrigin-hub reliability standing
Among SNA's stronger departures
SNA → IAH posts a 88.2% on-time rate, landing in the ≥85% band with 8 of 24 BTS-tracked routes leaving Santa Ana. The same hub also shows 12 mid-band and 4 challenged departures · fleet-wide on-time rank #394 of 4927 (highest on-time = #1).
Similar routes
Other BTS-tracked routes with comparable performance or trip length to SNA–IAH.
Routes with a similar on-time rate
What the Data Says About SNA to IAH
Santa Ana to Houston (SNA to IAH) is one of the more dependable pairings in the BTS On-Time Performance dataset: a 88.2% on-time rate across 6,837 flights, with delays that do happen averaging 78.9 minutes. The corridor runs roughly 1,346 miles and is served by 1 carrier. Over the most recent 24 months, 20 of 2,450 flights were cancelled (0.8%) and 14 diverted (0.6%).
The monthly split is wide on this route: Oct 2025 posted the strongest performance at 97% on-time, while Jul 2024 came in at just 73% - a 23-point swing worth factoring into travel timing.
On the multi-year calendar, SNA–IAH peaks in October at 92.5% on-time while January carries the heaviest traffic (~107 flights per month) ; the softest month is July at 79.1%, a 13.4-point swing that repeats because the corridor's weather and holiday mix stays stable year to year.
Frequently Asked Questions
Where does SNA to IAH rank among US routes by traffic? ▼
How often are flights delayed from SNA to IAH? ▼
What is the cancellation rate for SNA to IAH? ▼
How far is the flight from SNA to IAH? ▼
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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 SNA–IAH data
SNA–IAH runs 9.2 pts above the national 79% average; the remaining risk is month-to-month swing and carrier mix, not a weak headline rate.
- Compare SNA and IAH airport profiles: delay causes and top routes differ even on the same corridor. SNA airport
- If your dates flex, October (92.5% on-time) beats July (79.1%) on this corridor. Seasonal chart
- 4 other routes post a similar 88.2% 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.