Houston to St Louis (IAH–SUS) — Airlines, Schedules & Connections

IAH Airport Page →
656 mi airlines 1/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 1w ago
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  Flight Airline AC Dep Arr Dur OTP Sched  

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP
✧ 2-STOP Loading...
Houston to St Louis
Connecting service available through multiple hubs.
1 Flights/wk 656 mi 0h 26m nonstop +1h ahead 37 1-stop hubs

While no nonstop service exists between IAH and SUS, connecting options are available through 37 hubs.

Also explore IAH Routes SUS Routes IAH Live Flights SUS Live Flights IAH Delays
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for IAH to SUS.
1-STOP
One-Stop Connections
37
Hubs
~3h
Fastest
~34h
Longest
STL ~3h 53m MSY ~4h 9m IND ~4h 16m SAV ~4h 21m BNA ~4h 22m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
95
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
IAH → SUS
73%
Moderate delays possible. Allow buffer time.
Departing
73%
Return
SUS → IAH
86%
Generally reliable. Most flights run on time.
Arriving
86%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. IAH delays →
Alternatives

Other ways to reach St Louis from Houston

Nearby airports with service to Spirit of St Louis Airport.
Metric IAH→SUS AUS→SUS
Distance from IAH – 140 mi
Nonstop airlines 0 3
Weekly flights 1 1
Flight time 0h 26m 23h 33m
Departure OTP 73% –
Austin (AUS) to St Louis flights
Airports within 200 miles of IAH with service to Spirit of St Louis Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+1h
St Louis is 1 hour ahead of Houston.
IAH: CDT · SUS: EDT

When it's 6:00 PM in Houston, it's 7:00 PM in St Louis.
Distance & Flight Time
656 mi / 1,056 km
Nonstop flight time is approximately 0h 26m.
Getting to IAH

IAH has no direct rail link to downtown Houston. The IAH Express bus runs from Houston Amtrak/Greyhound station via Park & Ride to Terminal C (60–90 min, $1.25 with METRO Q card). This is the only transit option; Houston's rail network does not reach the airport.Taxis from downtown Houston cost $50–70 and take 40–60 minutes. Ride-hails (Uber, Lyft) are typically $35–55. IAH sits 23 miles north of downtown on the North Freeway (I-45); traffic is heavy during morning and evening rush. Remote economy parking lots serve all terminals via shuttle.

Facts

IAH–SUS Quick Facts

Key statistics for the Houston to St Louis route.
Route details
Distance656 mi / 1,056 km
Flight time0h 26m
Time difference+1 hour
Airlines (nonstop)0
Weekly flights1 out
1-stop connections37 hubs
Origin: IAH
Full nameGeorge Bush Intercontinental Airport
IATA / ICAOIAH / KIAH
TimezoneAmerica/Indiana/Tell_City
Passengers/yr46.7M
Elevation97 ft / 30 m
Destination: SUS
Full nameSpirit of St Louis Airport
IATA / ICAOSUS / KSUS
TimezoneAmerica/Indiana/Vincennes
Elevation463 ft / 141 m
FAQ

Frequently Asked Questions

Common questions about IAH to SUS flights.
Nonstop flights from George Bush Intercontinental Airport to Spirit of St Louis Airport take approximately 0h 26m. The route covers 656 miles.
There are approximately 1 nonstop flights per week from IAH to SUS.
Yes, 1-stop connections are available through STL, MSY, IND, SAV, BNA, MCI, DAL, BHM, JAX, SGF, CLT, SRQ, OMA, IAD, PBI, FLL, CLE, PHX, SLC, MIA, LGA, BOS, JFK, LAS, SNA, DEN, PSP, SJC, MCO, BZN, SFO, PDX, MSP, AUS, DFW, ORD and HND. These options provide additional schedule flexibility.
St Louis is 1 hour ahead of Houston.
Yes, return flights from SUS to IAH are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include AUS. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from IAH to SUS

George Bush Intercontinental Airport (IAH) and Spirit of St Louis Airport (SUS) are connected through multiple connecting hub airports.

IAH to SUS Flight Duration and Schedule

Nonstop flight time from IAH to SUS ranges from 0 hours 26 minutes. The route covers a distance of 656 miles (1,056 km).

Connecting Options and Alternatives

37 one-stop connections are available, with the fastest taking approximately 3 hours via STL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Austin (AUS).