Compare live prices for STL to IAH. Use the search panel
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STL → IAHApprox. 1075.61 km11 May 2026Live inventory
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Showing 25
of 121
live flights
Delta Air Lines
DL-1536
07:05
05/11/2026
STL
St Louis Lambert International Airport
6h 9m
1 Stop
⏱ ATL · 2h 21mATL Airport
13:14
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹17,993
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1485
17:20
05/11/2026
STL
St Louis Lambert International Airport
5h 6m
1 Stop
⏱ ATL · 1h 16mATL Airport
22:26
05/11/2026
HOU
George Bush Intercontinental Houston Airport
₹17,993
per person
✕ Non-refundable
Delta Air Lines
DL-4174
15:11
05/11/2026
STL
St Louis Lambert International Airport
6h 22m
1 Stop
⏱ MSP · 1h 43mMSP Airport
21:33
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹17,993
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1053
11:25
05/11/2026
STL
St Louis Lambert International Airport
6h 25m
1 Stop
⏱ MSP · 1h 45mMSP Airport
17:50
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹17,993
per person
✕ Non-refundable2 fare options
American Airlines
AA-2261
05:20
05/11/2026
STL
St Louis Lambert International Airport
4h 20m
1 Stop
⏱ DFW · 1h 4mDFW Airport
09:40
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✕ Non-refundable20 fare options
American Airlines
AA-418
17:21
05/11/2026
STL
St Louis Lambert International Airport
6h 27m
1 Stop
⏱ ORD · 2h 3mORD Airport
23:48
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✓ Refundable20 fare options
American Airlines
AA-6399
16:30
05/11/2026
STL
St Louis Lambert International Airport
7h 18m
1 Stop
⏱ ORD · 2h 48mORD Airport
23:48
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✕ Non-refundable20 fare options
American Airlines
AA-2958
14:12
05/11/2026
STL
St Louis Lambert International Airport
6h 24m
1 Stop
⏱ CLT · 1h 31mCLT Airport
20:36
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✕ Non-refundable20 fare options
American Airlines
AA-2261
05:20
05/11/2026
STL
St Louis Lambert International Airport
6h 2m
1 Stop
⏱ DFW · 2h 46mDFW Airport
11:22
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✓ Refundable19 fare options
American Airlines
AA-2945
18:11
05/11/2026
STL
St Louis Lambert International Airport
4h 18m
1 Stop
⏱ DFW · 1h 6mDFW Airport
22:29
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✓ Refundable19 fare options
American Airlines
AA-2945
18:11
05/11/2026
STL
St Louis Lambert International Airport
5h 48m
1 Stop
⏱ DFW · 2h 42mDFW Airport
23:59
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,092
per person
✓ Refundable19 fare options
United Airlines
UA-1371
06:00
05/11/2026
STL
St Louis Lambert International Airport
2h 18m
Non-stop
08:18
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,517
per person
✕ Non-refundable🔥 Last 3 seats8 fare options
Delta Air Lines
DL-1393
19:01
05/11/2026
STL
St Louis Lambert International Airport
4h 53m
1 Stop
⏱ ATL · 0h 56mATL Airport
23:54
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,872
per person
✕ Non-refundable
Delta Air Lines
DL-1485
17:20
05/11/2026
STL
St Louis Lambert International Airport
6h 34m
1 Stop
⏱ ATL · 2h 41mATL Airport
23:54
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,872
per person
✕ Non-refundable
Delta Air Lines
DL-1524
06:00
05/11/2026
STL
St Louis Lambert International Airport
7h 14m
1 Stop
⏱ ATL · 3h 18mATL Airport
13:14
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,872
per person
✕ Non-refundable
Delta Air Lines
DL-2868
10:19
05/11/2026
STL
St Louis Lambert International Airport
8h 8m
1 Stop
⏱ DTW · 3h 30mDTW Airport
18:27
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,872
per person
✕ Non-refundable
Delta Air Lines
DL-1371
13:59
05/11/2026
STL
St Louis Lambert International Airport
8h 17m
1 Stop
⏱ DTW · 3h 42mDTW Airport
22:16
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹18,872
per person
✕ Non-refundable
Delta Air Lines
DL-1524
06:00
05/11/2026
STL
St Louis Lambert International Airport
5h 9m
1 Stop
⏱ ATL · 1h 9mATL Airport
11:09
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹21,143
per person
✕ Non-refundable2 fare options
Delta Air Lines
DL-1536
07:05
05/11/2026
STL
St Louis Lambert International Airport
5h 6m
1 Stop
⏱ ATL · 1h 21mATL Airport
12:11
05/11/2026
HOU
George Bush Intercontinental Houston Airport
₹21,143
per person
✕ Non-refundable
Delta Air Lines
DL-1571
09:15
05/11/2026
STL
St Louis Lambert International Airport
6h 7m
1 Stop
⏱ ATL · 2h 16mATL Airport
15:22
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹22,083
per person
✕ Non-refundable
American Airlines
AA-2444
07:05
05/11/2026
STL
St Louis Lambert International Airport
5h 27m
1 Stop
⏱ ORD · 0h 52mORD Airport
12:32
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹23,123
per person
✕ Non-refundable19 fare options
American Airlines
AA-3917
15:38
05/11/2026
STL
St Louis Lambert International Airport
4h 42m
1 Stop
⏱ DFW · 1h 26mDFW Airport
20:20
05/11/2026
IAH
George Bush Intercontinental Houston Airport
₹23,123
per person
✕ Non-refundable13 fare options
Southwest Airlines
WN-4466
05:40
05/11/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
07:50
05/11/2026
HOU
George Bush Intercontinental Houston Airport
₹23,261
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-4467
08:25
05/11/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
10:35
05/11/2026
HOU
George Bush Intercontinental Houston Airport
₹23,261
per person
✕ Non-refundable9 fare options
Southwest Airlines
WN-4468
12:25
05/11/2026
STL
St Louis Lambert International Airport
2h 10m
Non-stop
14:35
05/11/2026
HOU
George Bush Intercontinental Houston Airport
₹23,261
per person
✕ Non-refundable9 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 11 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.