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Cheap flights Houston — St Louis

Houston (IAH, US) St Louis (STL, US)
from $108 1 094 km ~1h 47m 6 flights found 2 airlines cheapest on Friday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $108 on 20.11.2026
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 6 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
20 Nov 2026, Fri
Frontier Airlines F9 1404
16:00
IAH George Bush Intercontinental Airport
20:05
STL Lambert-St. Louis International Airport
4h 5m 1 stop
Flightnetwork
$108
View this ticket
15 Nov 2026, Sun
Frontier Airlines F9 1418
21:27
IAH George Bush Intercontinental Airport
02:41
STL Lambert-St. Louis International Airport
5h 14m 1 stop
Farera
$181
View this ticket
20 Nov 2026, Fri
United Airlines UA 6214
17:00
IAH George Bush Intercontinental Airport
19:02
STL Lambert-St. Louis International Airport
2h 2m Direct
Farera
$243
View this ticket
16 Nov 2026, Mon
United Airlines UA 2804
05:20
IAH George Bush Intercontinental Airport
07:26
STL Lambert-St. Louis International Airport
2h 6m Direct
Turna.com
$367
View this ticket
Route characteristics
Distance
1 094 km
Flight time
1h 47m
Time difference
+0h
Minimum price
from $108 (20.11.2026)
Average price
$181
Maximum price
$367
Departures per week
1
Cheapest day
Friday
Departure airports (1)
IAH George Bush Intercontinental Airport
Arrival airports (1)
STL Lambert-St. Louis International Airport
Airlines (2)
F9 Frontier Airlines UA United Airlines
Agencies (3)
Flightnetwork Farera Turna.com
Prices by day of week
Monday
$367
avg $367
Friday
$108
avg $176
Cheapest
Sunday
$181
avg $181
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 3 flights · 3 days
$108
United Airlines
United Airlines
3 flights · 3 days
$243
Where to buy tickets 3
Flightnetwork
1 tickets · 1 days
from $108
Farera
3 tickets · 3 days
from $176
Turna.com
2 tickets · 2 days
from $362
Airports

From — Houston (1)

  • IAH George Bush Intercontinental Airport

To — St Louis (1)

  • STL Lambert-St. Louis International Airport
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Frequently asked questions about the route Houston — St Louis
How long is the flight from Houston to St Louis?
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 Houston to St Louis?
The straight-line distance — 1 094 km.
How much do flights from Houston to St Louis cost?
The minimum price over 3 months — from $108 on 20.11.2026.
What is the average ticket price?
The average price — $181. Range: $108 — $367.
What is the time difference between Houston and St Louis?
The difference — +0h.
From which airports does Houston operate flights?
From Houston: IAH (George Bush Intercontinental Airport).
To which airports in St Louis do flights arrive?
To St Louis: STL (Lambert-St. Louis International 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 $243. Total direct flights found: 2.
Which day of the week is cheapest?
The cheapest day of the week — Friday.
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 Houston — St Louis

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

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

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

The minimum price for the next 3 months — from $108 (20.11.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $181, ranging from $108 to $367. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Friday.

Other destinations in United States from Houston
Omaha
US
Monroe
US
Mobile
US
Minneapolis
US
New Orleans
US
Oklahoma City
US
West Palm Beach
US
Philadelphia
US

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