Houston (HOU) – St. Louis (STL)
- Distance
- 1,106 km
- 687 mi · 597 nm
- Flight time
- 1 h 54 min / 1 h 59 min
- Average gate to gate: HOU → STL / back
- Time difference
- none
- CO2 per passenger
- 139 kg
- One way, economy, incl. RF (82 kg CO2 only)
- Passengers / year
- 337,092
- Aug 2025 – Jul 2026 · +0.9%
- Flights / week
- 60
- Both directions, average
- Seats filled
- 67%
- 503,930 seats a year
- Airlines nonstop
- 1
- WN
Traffic: U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service), Aug 2025 – Jul 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources
The way there
- Heading from HOU
- 23°
- Heading from STL
- 206°
- Halfway point
- 34.22, -92.96
- Great-circle km
- 1,108 km (sphere, for EU261)
- In the air HOU → STL
- 1 h 37 min
- In the air STL → HOU
- 1 h 42 min
- Clocks
- Same time in both
The estimate for a route without real times is 2 h 5 min; how it is worked out is on Sources.
Show as a table
| Month | Passengers |
|---|---|
| Aug 2025 | 28,583 |
| Sep 2025 | 25,048 |
| Oct 2025 | 28,554 |
| Nov 2025 | 28,673 |
| Dec 2025 | 30,422 |
| Jan 2026 | 22,026 |
| Feb 2026 | 22,301 |
| Mar 2026 | 34,458 |
| Apr 2026 | 25,977 |
| May 2026 | 29,195 |
| Jun 2026 | 30,034 |
| Jul 2026 | 31,821 |
Show as a table
| Month | Flights |
|---|---|
| Aug 2025 | 259 |
| Sep 2025 | 249 |
| Oct 2025 | 247 |
| Nov 2025 | 264 |
| Dec 2025 | 277 |
| Jan 2026 | 213 |
| Feb 2026 | 215 |
| Mar 2026 | 290 |
| Apr 2026 | 264 |
| May 2026 | 260 |
| Jun 2026 | 263 |
| Jul 2026 | 305 |
Airlines flying HOU–STL nonstop
| Airline | Flights / week | Share of passengers |
|---|---|---|
| WNSouthwest Airlines | 60 | 100% |
Both directions, Aug 2025 – Jul 2026. Airlines with at least one flight a month. U.S. DOT, Bureau of Transportation Statistics, T-100 Segment (all carriers, scheduled service). Sources
Aircraft on this route
- Boeing B737 Max 800 · 1,184 flights
- Boeing 737-700/700LR/Max 7 · 1,126 flights
- Boeing 737-800 · 796 flights
Also carried: 266 tonnes of freight and 0 tonnes of mail a year (passenger and cargo flights).
Punctuality
- On time
- 79.2%
- Arrived within 15 min of schedule
- Average delay
- 12 min
- Late arrivals count, early ones as 0
- Cancelled
- 0.4%
- Flights counted
- 3,098
- Aug 2025 – Jul 2026
Delay minutes by cause: airline 29% · aircraft arriving late 53% · air traffic system 14% · weather 4% · security 0%.
Both directions, Aug 2025 – Jul 2026. BTS Reporting Carrier On-Time Performance (US domestic flights of the larger US airlines). Sources
What passengers paid
- Average fare, Q1 2026
- $274
- One way, all cabins
- Average over a year
- $241
- Q2 2025 – Q1 2026
- Largest airline
- Southwest Airlines
- 99% of passengers · $274
- Lowest-fare airline
- Southwest Airlines
- 99% of passengers · $274
History, not a price to book: what the average passenger paid per one-way trip in each quarter (Q2 2025 $221 · Q3 2025 $230 · Q4 2025 $244 · Q1 2026 $274).
Fare outlook, Q1 2027: about $280, likely $242–$319
The average fare paid we expect a year after Q1 2026, the newest DOT quarter. On this route, past forecasts made this way fell inside the range 95% of the time over 21 quarters (median error 5.9%). An estimate from US DOT data: not a price you can book, not a guarantee, not advice on when to buy. How the outlook works
U.S. DOT Consumer Airfare Report, Table 1a (airline ticket sample, US domestic airport pairs). Sources
Delay compensation (EU261 / UK261)
Measured by great-circle distance: 1,108 km.
Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).
Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.
Every airport pair between Houston and St. Louis
Kilometres. Linked numbers have a page of their own. All Houston airports