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Cincinnati/Northern Kentucky International Airport to St. Louis flight
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Cheap Flights from Cincinnati/Northern Kentucky International Airport to St. Louis

Search for flights from Cincinnati/Northern Kentucky International Airport to St. Louis and check out affordable one-way and round-trip options.

  • One way
  • Round-trip
sortSort: Price (Lowest)
  • Sort: Price (Lowest)
  • Sort: Departure (Earliest)
      • CVG14:15
        8h 31m
        1 stop
        STL21:46
        Cincinnati - St. Louis|Wed, Jun 5|Frontier Airlines
        HK$ 394HK$ 1,466
        73% OFF
        73% OFF
        HK$ 1,466HK$ 394
      • CVG05:20
        10h 27m
        1 stop
        STL14:47
        Cincinnati - St. Louis|Tue, Jun 18|Frontier Airlines
        HK$ 725HK$ 1,466
        51% OFF
        51% OFF
        HK$ 1,466HK$ 725
      • CVG05:30
        8h 39m
        1 stop
        STL13:09
        Cincinnati - St. Louis|Tue, May 28|Frontier Airlines
        HK$ 737HK$ 1,466
        50% OFF
        50% OFF
        HK$ 1,466HK$ 737
      • CVG05:20
        10h 27m
        1 stop
        STL14:47
        Cincinnati - St. Louis|Tue, Jun 11|Frontier Airlines
        HK$ 743
        HK$ 743
      • CVG14:15
        17h 52m
        2 stops
        STL07:07
        Cincinnati - St. Louis|Sat, Jun 8|Frontier Airlines
        HK$ 816
        HK$ 816
      • CVG05:40
        17h 6m
        2 stops
        STL21:46
        Cincinnati - St. Louis|Wed, Jun 12|Frontier Airlines
        HK$ 824
        HK$ 824
      • CVG12:24
        5h 24m
        1 stop
        STL16:48
        Cincinnati - St. Louis|Tue, Jun 18|American Airlines
        HK$ 903
        HK$ 903
      • CVG19:05
        20h 13m
        2 stops
        STL14:18
        Cincinnati - St. Louis|Fri, Jun 7|Sun Country Airlines
        HK$ 973
        HK$ 973
      • CVG14:15
        19h 55m
        2 stops
        STL09:10
        Cincinnati - St. Louis|Fri, Jun 7|Frontier Airlines
        HK$ 981
        HK$ 981
      • CVG12:41
        8h 58m
        1 stop
        STL20:39
        Cincinnati - St. Louis|Sat, Jun 1|Frontier Airlines
        HK$ 988
        HK$ 988
      • CVG13:00
        3h 5m
        Direct
        STL14:00
        Cincinnati - St. Louis|Sun, Jun 2|Frontier Airlines
        Find More Flights
        Find More Flights

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Selected Airlines from Cincinnati/Northern Kentucky International Airport to St. Louis

See which airlines fly from Cincinnati/Northern Kentucky International Airport to St. Louis. Find the airline that best meets your travel needs by comparing prices and treat yourself to an enjoyable journey.

Frontier Airlines
From HK$ 394
American Airlines
From HK$ 903
Sun Country Airlines
From HK$ 973
United Airlines
From HK$ 1,191
Southwest Airlines
From HK$ 1,209
Delta Air Lines
From HK$ 1,452
Alaska Airlines
From HK$ 1,934
Allegiant Air
From HK$ 1,944
ANA airlines

Find more flights and airlines

Airports in St. Louis

Learn about different airports in St. Louis, find the best flight and transfer options, and plan your journey.

  • 21.12 km from central St. Louis
    St. Louis Lambert International Airport
    Tickets From
    HK$ 394
Flight Schedule from Cincinnati/Northern Kentucky International Airport to St. Louis

Check the schedule for flights from Cincinnati/Northern Kentucky International Airport to St. Louis and find the flight that best matches your travel plans.

Flight info.
Departure
Arrival
Weekly Schedule

  1. DL2441

    Delta Air Lines

    06:00

    CVG

    1.6h

    07:34

    ATL

    SMTWTFS
    Search

  2. DL1571

    Delta Air Lines

    08:24

    ATL

    1.6h

    09:03

    STL

    SMTWTFS

  3. UA2171

    United Airlines

    07:15

    CVG

    1.5h

    07:45

    ORD

    SMTWTFS
    Search

  4. UA3718

    United Airlines

    08:45

    ORD

    1.4h

    10:08

    STL

    SMTWTFS

  5. UA1710

    United Airlines

    09:02

    CVG

    3.0h

    10:02

    DEN

    SMTWTFS
    Search

  6. F93302

    Frontier Airlines

    06:26

    DEN

    2.2h

    09:37

    STL

    SMT-TF-

  7. UA3485

    United Airlines

    11:20

    CVG

    1.5h

    11:48

    ORD

    -MTWTFS
    Search

  8. UA2618

    United Airlines

    14:30

    ORD

    1.3h

    15:49

    STL

    SMTWTFS

  9. AA1497

    American Airlines

    12:21

    CVG

    1.6h

    13:54

    CLT

    SMTWTFS
    Search

  10. AA2477

    American Airlines

    15:24

    CLT

    1.9h

    16:15

    STL

    SMTWTFS

  11. UA4401

    United Airlines

    14:05

    CVG

    1.6h

    14:40

    ORD

    SMTWTFS
    Search

  12. UA4416

    United Airlines

    18:15

    ORD

    1.5h

    19:47

    STL

    SMTWTFS

  13. F91757

    Frontier Airlines

    17:32

    CVG

    2.5h

    19:03

    DFW

    SMTWTFS
    Search

  14. AA1010

    American Airlines

    20:58

    DFW

    1.8h

    22:48

    STL

    SMTWTFS

  15. AA430

    American Airlines

    20:18

    CVG

    1.5h

    21:50

    CLT

    SMTWTFS
    Search

  16. AA459

    American Airlines

    22:28

    CLT

    1.9h

    23:23

    STL

    SMTWTFS
Find more flights and airlines

Flight Info of Flights from Cincinnati/Northern Kentucky International Airport to St. Louis

Cheapest direct flight price

HK$ 393

Cheapest month

May

Peak season for travel

August

FAQs for Cincinnati/Northern Kentucky International Airport to St. Louis Flights

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