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Cheap flights St Louis — Houston

St Louis (STL, US) Houston (IAH, US)
from $141 1 094 km ~1h 47m 4 flights found 2 airlines cheapest on Sunday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $141 on 15.11.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
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Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
15 Nov 2026, Sun
Frontier Airlines F9 4567
04:59
STL Lambert-St. Louis International Airport
10:12
IAH George Bush Intercontinental Airport
5h 13m 1 stop
Farera
$141
View this ticket
14 Nov 2026, Sat
Frontier Airlines F9 4567
04:59
STL Lambert-St. Louis International Airport
10:00
IAH George Bush Intercontinental Airport
5h 1m 1 stop
Farera
$180
View this ticket
14 Nov 2026, Sat
United Airlines UA 4524
17:30
STL Lambert-St. Louis International Airport
20:01
IAH George Bush Intercontinental Airport
2h 31m Direct
Farera
$294
View this ticket
Route characteristics
Distance
1 094 km
Flight time
1h 47m
Time difference
+0h
Minimum price
from $141 (15.11.2026)
Average price
$161
Maximum price
$180
Cheapest day
Sunday
Departure airports (1)
STL Lambert-St. Louis International Airport
Arrival airports (1)
IAH George Bush Intercontinental Airport
Airlines (2)
F9 Frontier Airlines UA United Airlines
Agencies (1)
Farera
Prices by day of week
Saturday
$180
avg $237
Sunday
$141
avg $141
Cheapest
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 2 flights · 2 days
$141
United Airlines
United Airlines
2 flights · 2 days
$294
Where to buy tickets 1
Farera
4 tickets · 3 days
from $141
Airports

From — St Louis (1)

  • STL Lambert-St. Louis International Airport

To — Houston (1)

  • IAH George Bush Intercontinental Airport
Other destinations from St Louis
Burlington
US
Decatur
US
Jonesboro
US
Cape Girardeau
US
Kirksville
US
Marion
US
Owensboro
US
Fort Leonard Wood
US
Quincy
US
Dallas
US · Hub
Los Angeles
US · Hub
Miami
US · Hub
Frequently asked questions about the route St Louis — Houston
How long is the flight from St Louis to Houston?
Approximate flight time — 1h 47m. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from St Louis to Houston?
The straight-line distance — 1 094 km.
How much do flights from St Louis to Houston cost?
The minimum price over 3 months — from $141 on 15.11.2026.
What is the average ticket price?
The average price — $161. Range: $141 — $180.
What is the time difference between St Louis and Houston?
The difference — +0h.
From which airports does St Louis operate flights?
From St Louis: STL (Lambert-St. Louis International Airport).
To which airports in Houston do flights arrive?
To Houston: IAH (George Bush Intercontinental Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, United Airlines.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $294. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Sunday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route St Louis — Houston

Flights St Louis — Houston is a popular route. The straight-line distance is 1 094 km. Flight time 1h 47m. Time difference +0h.

From St Louis (STL) flights depart from 1 airport: STL. To Houston (IAH) — 1 arrival airport: IAH.

2 airlines operate on this route: Frontier Airlines, United Airlines.

The minimum price for the next 3 months — from $141 (15.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $161, ranging from $141 to $180. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Sunday.

Other destinations in United States from St Louis
Burlington
US
Decatur
US
Jonesboro
US
Cape Girardeau
US
Kirksville
US
Marion
US
Owensboro
US
Fort Leonard Wood
US

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