St Louis to Cincinnati / Covington (STL–CVG) — Airlines, Schedules & Connections

STL Airport Page →
307 mi airlines charter/private 1/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 14m ago
Also flown by charter / private operators.
Nonstop Charter / private 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
SY3008
SY Sun Country
5:53 PM
CDT
9:07 PM
EDT
2h 14m
M T W T F S S
Prices
KII524
KII KII
734
7:08 AM
EDT
7:12 AM
CDT
1h 4m
M T W T F S S
Prices

No flights match your filters.

No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.

✦ 1-Stop connections via 10 hubs
DTW Detroit 3h 36m AFDLKE AFAMDL Detroit (DTW) to Cincinnati / Covington flights
ORD Chicago 3h 46m AAACAS AAACAS Chicago (ORD) to Cincinnati / Covington flights
ATL Atlanta 3h 50m AFAMDL AFAMDL Atlanta (ATL) to Cincinnati / Covington flights
BNA Nashville 4h 5m EJAWN WN Nashville (BNA) to Cincinnati / Covington flights
MSP Minneapolis 4h 19m AFDLKE AFDLKE Minneapolis (MSP) to Cincinnati / Covington flights
CLT Charlotte 4h 19m AABALXJ 8CAA Charlotte (CLT) to Cincinnati / Covington flights
VPS Valparaiso 4h 32m WN G4 Valparaiso (VPS) to Cincinnati / Covington flights
DCA Washington 4h 34m AAWN AAAFAS Washington (DCA) to Cincinnati / Covington flights
CHS Charleston 4h 37m WN G4MX Charleston (CHS) to Cincinnati / Covington flights
1-STOP More options, longer trips
2-STOP Loading... Reach the hardest destinations
St Louis to Cincinnati / Covington
3 carriers, 1 flights/week nonstop.
3 Airlines 307 mi 2h 14m nonstop +1h ahead

STL–CVG is served by 3 airlines with nonstop service. Sun Country Airlines and American Airlines lead the route. The flight covers 307 miles in approximately 2h 14m. Beyond nonstop, 1-stop connecting options are also available.

Airline Landscape

All carriers operating nonstop STL–CVG service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
KII KII 1 90%
SY Sun Country Airlines 1 2h14 90%
AA American Airlines 0 90% Oneworld
Alliance coverage
Unaffiliated: KII + SY (2 flights/wk, 100%)
Oneworld: AA (0 flights/wk, 0%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, STL to CVG direction.
Mon
0
flights
Tue
0
flights
Wed
0
flights
Thu
0
flights
Fri
1
flight
Sat
0
flights
Sun
0
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
1
Outbound / wk
2
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for STL to CVG.
1-STOP
One-Stop Connections
60
Hubs
~3h
Fastest
~27h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
2,326
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.

On-Time Performance

What to expect at each end of your journey.
Outbound
STL → CVG
90%
Generally reliable. Most flights run on time.
Departing
90%
Arriving
84%
Return
CVG → STL
80%
Generally reliable. Most flights run on time.
Departing
80%
Arriving
72%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. STL delays → CVG delays →

Travel Essentials

Practical planning for this route.
Time Difference
+1h
Cincinnati / Covington is 1 hour ahead of St Louis.
STL: CDT · CVG: EDT

When it's 6:00 PM in St Louis, it's 7:00 PM in Cincinnati / Covington.
Distance & Flight Time
307 mi / 495 km
Nonstop flight time is approximately 2h 14m gate to gate.

STL–CVG Quick Facts

Key statistics for the St Louis to Cincinnati / Covington route.
Route details
Distance307 mi / 495 km
Flight time2h 14m
Time difference+1 hour
Airlines (nonstop)3
Weekly flights1 out / 2 return
1-stop connectionsAvailable
Origin: STL
IATA / ICAOSTL / KSTL
TimezoneAmerica/Chicago
Passengers/yr15.6M
Elevation618 ft / 188 m
Destination: CVG
IATA / ICAOCVG / KCVG
TimezoneAmerica/New_York
Passengers/yr9.0M
Elevation896 ft / 273 m

Frequently Asked Questions

Common questions about STL to CVG flights.
Nonstop flights from St. Louis Lambert International Airport to Cincinnati Northern Kentucky International Airport take about 2h 14m gate to gate. The route covers 307 miles.
3 airlines operate flights from STL to CVG: Sun Country Airlines, American Airlines, and others.
This route has limited weekly service. Check the schedule above for departure days and times in each direction.
Yes, 1-stop connections are available, ranked by layover time. Common connecting points include Chicago Midway, Detroit Metropolitan Wayne County and Chicago O'Hare.
Cincinnati / Covington is 1 hour ahead of St Louis.
Yes, return flights from CVG to STL are available. Use the direction toggle at the top to view the return schedule.
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 STL to CVG

St. Louis Lambert International Airport (STL) and Cincinnati Northern Kentucky International Airport (CVG) are connected by nonstop service from Sun Country Airlines and American Airlines. With 1 weekly departures, this is a regularly served route.

STL to CVG Flight Duration and Schedule

Nonstop flight time from STL to CVG is about 2 hours 14 minutes gate to gate. The route covers a distance of 307 miles (495 km). There are approximately 1 weekly flights outbound and 2 return, totaling 3 flights per week in both directions.

Connecting Options and Alternatives

1-stop connecting options are also available, commonly via Chicago Midway, Detroit Metropolitan Wayne County and Chicago O'Hare. Two-stop connections are also available via intermediate hubs.