Houston to St Louis flights
Routavio compares airline fares from several flight booking sites. The lowest one-way fare it found for Houston to St Louis is €41 with Frontier Airlines (checked on 6 Nov 2026).
Your next trip, last seen at €41
Lowest observedFrontier Airlines · 1 stop · One wayWhen to fly
Explore datesMore dates worth a look
Last seen for 1 traveller on 6 Nov 2026. Check today's price.
Find the dates that work for you
The lowest fare we observed for each month. Open a month to see its days, then pick your outbound and return. A day with no price is one we will search for you.
One-way fare
- 1 Dec€41
- 2 Dec€97
- 3 Dec€56
- 4 Dec€84
- 5 Dec€105
- 6 Dec€64
- 7 Dec€95
- 8 Dec€41
- 9 Dec€84
- 10 Dec€56
- 11 Dec€84
- 12 Dec€105
- 13 Dec€66
- 14 Dec€95
- 15 Dec€41
- 16 Dec€119
- 17 Dec€67
- 18 Dec€51
- 21 Dec€122
- 22 Dec€49
- 23 Dec€105
- 24 Dec€56
- 25 Dec€90
- 29 Dec€97
- 30 Dec€93
- 31 Dec€56
- Lowest observed
- €41, departing 1 Dec 2026 (Last checked: 6 Nov 2026)One-way fare · Priced departure days checked in the last 14 days: 87Check live prices for this route
- Airlines seen
- United Airlines, Frontier Airlines, Southern Airways Express
- Fastest observed flight time
- 2h 02m
- Non-stop
- Yes
About this route
Explore the fares we observed from Houston to St Louis. Prices move often, so pick your dates to see the latest options.
- Route distance
- 1,094 km
- Fastest observed flight time
- 2h 02m
- Airlines seen
- United Airlines, Frontier Airlines, Southern Airways Express
- Alternative airports
- HOU, SUS
Route-level information; individual journeys vary.
A clearer picture of your fare
If the observed fare for this date drops, we will email you. At most one message a day.
Airport to city: straight-line distance
- William P. Hobby Airport (HOU) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 17 km.
- George Bush Intercontinental Airport (IAH) → Houston, city gazetteer reference point (29.7628, -95.3831): ≈ 25 km.
- St. Louis Lambert International Airport (STL) → St Louis, city gazetteer reference point (38.6270, -90.1994): ≈ 20 km.
Approximate distances calculated from coordinates, not road distances or travel times. These airports serve the city; they are not confirmed endpoints of an offer.
Lowest fare by departure month
Cheapest departure day we saw in December 2026 from Houston to St Louis: 1 Dec 2026, €41 (checked 6 Nov 2026).
| Month | Lowest fare | Priced days |
|---|---|---|
| November 2026 | €78 | 15 |
| December 2026 | €41 | 26 |
| January 2027 | €77 | 20 |
| February 2027 | €78 | 23 |
| March 2027 | €83 | 3 |
Lowest fare by day of the week
Cheapest Tuesday departure we saw from Houston to St Louis: 1 Dec 2026, €41 (checked 6 Nov 2026).
| Day | Lowest fare | Priced days |
|---|---|---|
| Monday | €77 | 11 |
| Tuesday | €41 | 15 |
| Wednesday | €82 | 15 |
| Thursday | €56 | 15 |
| Friday | €51 | 14 |
| Saturday | €78 | 11 |
| Sunday | €64 | 6 |
One-way fares checked in the last 14 days. Each figure is the lowest priced departure day we saw, not a guaranteed fare.
Lowest fare by days before departure
Lowest fare from Houston to St Louis by days until departure (8 to 30 days): €41 (checked 6 Nov 2026).
| Days before departure | Lowest fare | Priced days |
|---|---|---|
| 0 to 7 days | €129 | 8 |
| 8 to 30 days | €41 | 17 |
| 31 to 60 days | €41 | 20 |
| 61 days or more | €77 | 42 |
One-way fares checked in the last 14 days. Each figure is the lowest stored fare for that distance to departure, not a price forecast.
Fares for different departure dates, checked now; not a guide to when to book.
Frequently asked
How much is a flight from Houston to St Louis?
The lowest fare Routavio has observed is €41, found on 6 Nov 2026.
Are there direct flights from Houston to St Louis?
Yes. Published schedules report non-stop flights on this route with United Airlines, Southwest Airlines.
Which airlines fly from Houston to St Louis?
Routavio has seen these carriers on the route: United Airlines, Frontier Airlines, Southern Airways Express.
How long does the flight from Houston to St Louis take?
Across the 101 fares Routavio observed, the average journey time is 14h 14m, including any stops. Individual departures vary; the fastest observed flight is listed in the route facts above.
How many of the observed Houston to St Louis fares were non-stop?
3 of the 104 fares we observed were non-stop; the rest included at least one stop. That describes our observations, not every flight that operates.
When is the cheapest month to fly from Houston to St Louis?
Cheapest departure day we saw in December 2026 from Houston to St Louis: 1 Dec 2026, €41 (checked 6 Nov 2026).
Which day of the week is cheapest from Houston to St Louis?
Cheapest Tuesday departure we saw from Houston to St Louis: 1 Dec 2026, €41 (checked 6 Nov 2026).
How observed prices work, what "No data" means and what a fare includes: Read the flight price guide · Price and schedule freshness on Routavio
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Recently observed fares. Prices may change.