Cheapest€87.46
- GoJet Airlines GJ395206:042h08:04St. Louis STLHouston HOU
Door to door 5h 10mCO2 277.0 kgChanges 0Fixed, no changes
St Louis to Houston flight
Flights from St Louis to Houston start at €92.77 and take 5h at their fastest.
Check dates and fares
Fares and seats move by the day. Price St Louis to Houston on the date you actually want, rather than on the date this page was built.
The Flights from St Louis to Houston starts at €92.77 and takes 5h door to door, run by 5 operators over 1,126 km, with around 40 departures a day. Fares bottom out about 21 days before departure.
- 5hDoor to door
- 1h 50mMoving
- €92.77 to €220.21From
- 06:04 to 20:46First and last departure
- 40Per day
- 277.0 kgCO2
First and last are taken from the services we sell on 6 October 2026. The return direction keeps its own timetable and is not these times reversed.
€92.77 to €220.21 for one passenger across the 14 departure dates priced here. The low end is one day, not every day. Worked out from this corridor rather than held for anybody. The operator sets the price on the day.
Fares by date
What this journey usually costs, by departure date. It shows which days run dearer.
Typical fares
- about €181.86Wed16
- about €220.21Thu17
- about €167.11Fri18
- about €171.24Sat19
- about €160.62Sun20
- about €139.97Mon21
- about €110.47Tue22
- about €119.91Wed23
- about €145.87Thu24
- about €139.38Fri25
- about €138.79Sat26
- about €129.35Sun27
- about €112.83Mon28
- about €92.77Tue29
Based on what this route has cost recently. The operator sets the price on the day, and the live fare is confirmed when you book.
The cheapest and the fastest on 6 October 2026
Fastest€99.26
- United Airlines UA646820:421h 50m22:32St. Louis STLHouston HOU
Door to door 5hCO2 277.0 kgChanges 0Fixed, no changes
Airlines
| Operator | From |
|---|---|
| United Airlines | €89.82 |
 Southwest Airlines | €88.05 |
 ExpressJet | €89.82 |
 Mesa Airlines | €88.05 |
 GoJet Airlines | €87.46 |
The flight gets you into Houston. It does not get you a bed, and neither do we.
A room in Houston for the night the flight gets in
Sort by distance from Houston station and you can see which places are ten minutes on foot and which are not.
Search Houston on Booking.comOr compare on Expedia
Partner links. We do not sell accommodation. We earn a commission when a booking completes, and it never changes what you pay.
When to book St Louis to Houston
The same search run across the whole booking window, so the shape of the curve is visible rather than described.
- €92.7790 days
- €89.8260 days
- €93.3645 days
- €99.8530 days
- €87.4621 days
- €92.7714 days
- €110.477 days
- €167.113 days
- €181.861 days
- Cheapest lead time
- Fares bottom out around 21 days ahead, at €87.46.
- How much it moves
- The gap between the cheapest and dearest lead time is 108 percent. The dearest point is €181.86, 1 days out.
- What that means
- Today sits inside the cheap window, which closes about 21 days before departure. Waiting from here has usually cost money on this corridor rather than saved it.
Which departure day costs least
Median cheapest fare for each weekday, taken across the next three weeks of real prices.
- €129.35Sun
- €112.83Mon
- €92.77Tue
- €119.91Wed
- €145.87Thu
- €139.38Fri
- €138.79Sat
Where you leave from and where you arrive
St. Louis
Air
- STL
Houston
Air
- IAH
- HOU
What the journey actually looks like
- How far it really runs
- The route covers 1,126 km against 1,094 km in a straight line, a detour of 3 percent. Track and road geometry account for the difference.
- First and last departure
- The first service of the day leaves St Louis at 06:04 and the last at 20:46, across 40 departures The return direction keeps its own timetable, so the times back are not these times reversed.
Questions about St Louis to Houston
The questions people actually ask about this journey, answered from the same prices and times the page above is built on rather than written once and left to go stale.
How long does the Flight from St Louis to Houston take?
The Flight from St Louis to Houston takes 5h door to door, of which 1h 50m is spent moving. The route runs 1,126 km. The difference between the two times is reaching the terminal and leaving it at the far end, which every time on this page includes.
How much does the Flight from St Louis to Houston cost?
The Flight from St Louis to Houston starts at €92.77 for one passenger, as of 15 September 2026. A typical fare is €106.64. Both are the total including taxes, supplier fees and our service fee, so the price here is the price at checkout.
Who runs the Flight from St Louis to Houston?
5 operators run the Flight from St Louis to Houston: United Airlines, Southwest Airlines, ExpressJet, Mesa Airlines, GoJet Airlines. Between them they file around 40 departures a day. The operator table on this page compares them on fare, journey time, cruising speed, fare conditions and what is provided on board.
Which terminal does the Flight from St Louis to Houston use?
The Flight from St Louis to Houston leaves from St. Louis STL and arrives at Houston HOU. Allow about 3h 10m for reaching the departure terminal and leaving the arrival one. That time is already inside every door to door figure quoted on this page.
When should I book the Flight from St Louis to Houston?
Fares for the Flight from St Louis to Houston bottom out around 21 days ahead, at €87.46. The gap between the cheapest and dearest lead time across the window is 108 percent, measured on 15 September 2026. Booking inside the final week has consistently cost more.
How much CO2 does the Flight from St Louis to Houston produce?
The Flight from St Louis to Houston produces about 277.0 kg of CO2 per passenger over 1126 km, which works out at roughly 246 grams per passenger kilometre. That figure is for the whole journey and for one traveller, not for the vehicle.
Where these numbers come from
Places, coordinates, operators, which operator serves which pair, and every distance on this page are real and come from open data. Where a corridor has a filed timetable the departure times are real too, and ferry fares are the prices the operators publish themselves.
Observed service A carrier record shows this named operator serving this named pair, and we carry that through unchanged.
Where no operator publishes a fare for a corridor, the price here is our own estimate, worked out from the real distance and the real operator through a fare curve that follows lead time, day of the week and season. It tells you roughly what the journey costs. It is not a seat anyone has agreed to sell, and the payment step will not take it.
Defined in full at Door to door, Fares, The booking window, Carbon
- On this page
- Every figure above was computed for St Louis to Houston on 15 September 2026: 1126 km of route against 1094 km in a straight line, 40 services a day, 5 operators a cheapest fare of €92.77, and 5h door to door on the fastest mode. The return direction is computed separately and its numbers are not these numbers.
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