Des Moines to St Louis (DSM–STL) — Airlines, Schedules & Connections

DSM Airport Page →
259 mi airlines 7/wk
On-time Some delays Frequent delays
Flight Schedule 0 flights Verified 1w ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  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...
Des Moines to St Louis
1 carrier, 7 flights/week nonstop.
1 Airlines 7 Flights/wk 259 mi 1h 15m nonstop +1h ahead 34 1-stop hubs

DSM–STL is served by 1 airline with nonstop service. Southwest Airlines leads the route. The flight covers 259 miles in approximately 1h 15m. Beyond nonstop, 34 hubs offer 1-stop connections.

Also explore DSM Routes STL Routes DSM Live Flights STL Live Flights DSM Delays STL Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop DSM–STL service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
WN Southwest Airlines 7 – – 80% – –
Alliance coverage
Unaffiliated: WN (7 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for DSM to STL.
1-STOP
One-Stop Connections
34
Hubs
~3h
Fastest
~26h
Longest
IND ~3h 27m RIL ~4h 36m PIE ~5h 22m DAL ~5h 31m SCF ~5h 51m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,246
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
DSM → STL
80%
Generally reliable. Most flights run on time.
Departing
80%
Arriving
75%
Return
STL → DSM
58%
Frequent delays expected. Consider flexible booking.
Departing
58%
Arriving
78%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. DSM delays → STL delays →
Alternatives

Other ways to reach St Louis from Des Moines

Nearby airports with service to St. Louis Lambert International Airport.
Metric DSM→STL OMA→STL
Distance from DSM – 117 mi
Nonstop airlines 1 1
Weekly flights 7 29
Flight time 1h 15m 1h 15m
Departure OTP 80% –
Omaha (OMA) to St Louis flights
Airports within 200 miles of DSM with service to St. Louis Lambert International Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+1h
St Louis is 1 hour ahead of Des Moines.
DSM: CDT · STL: EDT

When it's 6:00 PM in Des Moines, it's 7:00 PM in St Louis.
Distance & Flight Time
259 mi / 417 km
Nonstop flight time is approximately 1h 15m.
Facts

DSM–STL Quick Facts

Key statistics for the Des Moines to St Louis route.
Route details
Distance259 mi / 417 km
Flight time1h 15m
Time difference+1 hour
Airlines (nonstop)1
Weekly flights7 out / 1 return
1-stop connections34 hubs
Origin: DSM
Full nameDes Moines International Airport
IATA / ICAODSM / KDSM
TimezoneAmerica/Chicago
Passengers/yr3.1M
Elevation958 ft / 292 m
Destination: STL
Full nameSt. Louis Lambert International Airport
IATA / ICAOSTL / KSTL
TimezoneAmerica/Indiana/Vincennes
Passengers/yr15.6M
Elevation618 ft / 188 m
FAQ

Frequently Asked Questions

Common questions about DSM to STL flights.
Nonstop flights from Des Moines International Airport to St. Louis Lambert International Airport take approximately 1h 15m. The route covers 259 miles.
1 airline operates nonstop service: Southwest Airlines.
There are approximately 7 nonstop flights per week from DSM to STL. The return direction has about 1 weekly flights.
Yes, 1-stop connections are available through IND, RIL, PIE, DAL, SCF, BWI, IAD, SLC, ATW, AUS, SAT, BNA, ORD, BOS, IAH, MDW, DTW, MEM, MIA, DEN, MSP, DFW, PHX, DCA, ATL, CLT, FLL, MCO, LGA, SRQ, LAS, LAX, RSW and CVG. These options provide additional schedule flexibility.
St Louis is 1 hour ahead of Des Moines.
Yes, return flights from STL to DSM are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include OMA. 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 DSM to STL

Des Moines International Airport (DSM) and St. Louis Lambert International Airport (STL) are connected by nonstop service from Southwest Airlines. With 7 weekly departures, this is a regularly served route.

DSM to STL Flight Duration and Schedule

Nonstop flight time from DSM to STL ranges from 1 hours 15 minutes. The route covers a distance of 259 miles (417 km). There are approximately 7 weekly flights outbound and 1 return, totaling 8 flights per week in both directions.

Connecting Options and Alternatives

34 one-stop connections are available, with the fastest taking approximately 3 hours via IND. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Omaha (OMA).