Compare live prices for STL to IAH. Use the search panel
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STL → IAHApprox. 1075.61 km08 May 2026Live inventory
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Showing 25
of 127
live flights
Frontier Airlines
F9-2017
21:18
05/08/2026
STL
St Louis Lambert International Airport
15h 15m
1 Stop
⏱ LAS · 8h 21mLAS Airport
12:33
05/09/2026
+1
IAH
George Bush Intercontinental Houston Airport
₹14,887
per person
✕ Non-refundable🔥 Last 3 seats
Frontier Airlines
F9-2646
17:27
05/08/2026
STL
St Louis Lambert International Airport
5h 23m
1 Stop
⏱ ATL · 1h 11mATL Airport
22:50
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹16,294
per person
✕ Non-refundable
Southwest Airlines
WN-4466
05:40
05/08/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
07:50
05/08/2026
HOU
George Bush Intercontinental Houston Airport
₹16,862
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-1753
19:15
05/08/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
21:25
05/08/2026
HOU
George Bush Intercontinental Houston Airport
₹16,862
per person
✕ Non-refundable6 fare options
Southwest Airlines
WN-2082
21:45
05/08/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
23:55
05/08/2026
HOU
George Bush Intercontinental Houston Airport
₹16,862
per person
✕ Non-refundable6 fare options
Delta Air Lines
DL-1393
19:01
05/08/2026
STL
St Louis Lambert International Airport
4h 58m
1 Stop
⏱ ATL · 1h 1mATL Airport
23:59
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1524
06:00
05/08/2026
STL
St Louis Lambert International Airport
5h 9m
1 Stop
⏱ ATL · 1h 9mATL Airport
11:09
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1536
07:05
05/08/2026
STL
St Louis Lambert International Airport
6h 9m
1 Stop
⏱ ATL · 2h 21mATL Airport
13:14
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1485
17:20
05/08/2026
STL
St Louis Lambert International Airport
5h 6m
1 Stop
⏱ ATL · 1h 16mATL Airport
22:26
05/08/2026
HOU
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-2868
10:19
05/08/2026
STL
St Louis Lambert International Airport
8h 8m
1 Stop
⏱ DTW · 3h 30mDTW Airport
18:27
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1371
13:59
05/08/2026
STL
St Louis Lambert International Airport
8h 17m
1 Stop
⏱ DTW · 3h 42mDTW Airport
22:16
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable2 fare options
American Airlines
AA-2261
05:20
05/08/2026
STL
St Louis Lambert International Airport
6h 52m
1 Stop
⏱ DFW · 3h 28mDFW Airport
12:12
05/08/2026
HOU
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable7 fare options
American Airlines
AA-2261
05:20
05/08/2026
STL
St Louis Lambert International Airport
4h 20m
1 Stop
⏱ DFW · 1h 4mDFW Airport
09:40
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable9 fare options
American Airlines
AA-2941
12:27
05/08/2026
STL
St Louis Lambert International Airport
4h 50m
1 Stop
⏱ DFW · 1h 37mDFW Airport
17:17
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-2945
18:11
05/08/2026
STL
St Louis Lambert International Airport
5h 48m
1 Stop
⏱ DFW · 2h 42mDFW Airport
23:59
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-2444
07:05
05/08/2026
STL
St Louis Lambert International Airport
5h 27m
1 Stop
⏱ ORD · 0h 52mORD Airport
12:32
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-418
17:21
05/08/2026
STL
St Louis Lambert International Airport
6h 27m
1 Stop
⏱ ORD · 2h 3mORD Airport
23:48
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-3128
05:51
05/08/2026
STL
St Louis Lambert International Airport
6h 41m
1 Stop
⏱ ORD · 2h 7mORD Airport
12:32
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-2958
14:12
05/08/2026
STL
St Louis Lambert International Airport
6h 24m
1 Stop
⏱ CLT · 1h 31mCLT Airport
20:36
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable8 fare options
American Airlines
AA-2945
18:11
05/08/2026
STL
St Louis Lambert International Airport
4h 18m
1 Stop
⏱ DFW · 1h 6mDFW Airport
22:29
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable7 fare options
American Airlines
AA-2261
05:20
05/08/2026
STL
St Louis Lambert International Airport
6h 2m
1 Stop
⏱ DFW · 2h 46mDFW Airport
11:22
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable7 fare options
Delta Air Lines
DL-1571
09:15
05/08/2026
STL
St Louis Lambert International Airport
6h 7m
1 Stop
⏱ ATL · 2h 16mATL Airport
15:22
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable
Delta Air Lines
DL-1102
13:27
05/08/2026
STL
St Louis Lambert International Airport
6h 33m
1 Stop
⏱ ATL · 2h 43mATL Airport
20:00
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable
Delta Air Lines
DL-1485
17:20
05/08/2026
STL
St Louis Lambert International Airport
6h 39m
1 Stop
⏱ ATL · 2h 46mATL Airport
23:59
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable
American Airlines
AA-2941
12:27
05/08/2026
STL
St Louis Lambert International Airport
6h 52m
1 Stop
⏱ DFW · 3h 32mDFW Airport
19:19
05/08/2026
IAH
George Bush Intercontinental Houston Airport
₹17,423
per person
✕ Non-refundable7 fare options
😕 No flights match your filters.
St. Louis (STL)
📍 St Louis Lambert International Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 38.748697
📐 Longitude: -90.370003
Houston (IAH)
📍 George Bush Intercontinental Houston Airport
🌍 United States
🕐 GMT -6
📐 Latitude: 29.984399795532227
📐 Longitude: -95.34140014648438
✈ Distance: St. Louis,USA to Houston, TX,USA — 1075.61 km
📅 Results on this page are loaded for 08 May 2026. Click View all flights for the complete live search.
St. Louis to Houston — what to expect when booking
The STL–IAH route is served by multiple carriers throughout the year.
Fares on this route can move quickly — a price available now may not be there 30 minutes later.
If your dates are flexible, try shifting your departure by a day or two using the date strip above.
Mid-week departures often show lower base fares compared to weekend starts on many routes.
The distance between St. Louis,USA and Houston, TX,USA is approximately
1075.61 km.
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❓ Frequently asked questions — St. Louis to Houston flights
Generally yes — fares on most routes are most competitive around 4–6 weeks before departure. Booking earlier usually means better availability and a lower base fare when your dates are fixed.
The straight-line distance between St. Louis,USA (STL) and Houston, TX,USA (IAH) is approximately 1075.61 km. Actual flying distance may vary slightly depending on routing.
Non-stop availability on this route varies by airline schedule and season. Use the filters below to quickly check whether direct options are available on your selected date.
Mid-week departures often show lower prices than weekend travel on many routes. Use the date strip above to compare nearby days quickly.