Cheap Flights to Cross Keys

View ₩137,200 flight on Sat, Oct 4, 2025Opens in a new window

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How much is the cheapest flight to Cross Keys?

Prices were available within the past 7 days and start at ₩137,200 for one-way flights and ₩287,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Oct 3 - Tue, Oct 7
DEN
Denver
STL
St. Louis
₩287,400 Roundtrip, found 2 days ago
₩287,400
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Oct 3 from Denver to St. Louis, returning Tue, Oct 7, priced at ₩287,400 found 2 days ago
United
Fri, Oct 3 - Tue, Oct 7
DEN
Denver
STL
St. Louis
₩343,500 Roundtrip, found 2 days ago
₩343,500
Roundtrip
found 2 days ago
Select United flight, departing Fri, Oct 3 from Denver to St. Louis, returning Tue, Oct 7, priced at ₩343,500 found 2 days ago
American Airlines
Fri, Oct 3 - Tue, Oct 7
DEN
Denver
STL
St. Louis
₩377,700 Roundtrip, found 2 days ago
₩377,700
Roundtrip
found 2 days ago
Select American Airlines flight, departing Fri, Oct 3 from Denver to St. Louis, returning Tue, Oct 7, priced at ₩377,700 found 2 days ago
Air Canada
Wed, Sep 17 - Wed, Sep 24
ICN
Seoul
STL
St. Louis
₩830,400 Roundtrip, found 15 hours ago
₩830,400
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Wed, Sep 17 from Seoul to St. Louis, returning Wed, Sep 24, priced at ₩830,400 found 15 hours ago
Alaska Airlines
Sat, Oct 18 - Sat, Oct 25
ICN
Seoul
STL
St. Louis
₩1,118,300 Roundtrip, found 5 hours ago
₩1,118,300
Roundtrip
found 5 hours ago
Select Alaska Airlines flight, departing Sat, Oct 18 from Seoul to St. Louis, returning Sat, Oct 25, priced at ₩1,118,300 found 5 hours ago

Find the cheapest month to fly from Columbus (CMH) to St. Louis (STL)

August is typically the cheapest month to fly

From ₩200,905 - ₩698,296 per traveler.

Graph displaying average flight prices per month

Searching for cheap flights to Cross Keys? No travel company presents more choices than Expedia if you're looking to compare flights to Cross Keys. With more airlines, cheaper flights, fewer stops, and more departure and arrival times travellers should ensure they search on Expedia before any holiday to St. Louis. Expedia provides the cheapest flights to many destinations in St. Louis and you may find even greater savings if you combine your flight with a hotel stay in Cross Keys.

Flights to Cross Keys information
Destination airport
Lambert-St. Louis Intl.
Destination airport IATA code
STL
Destination city name
St. Louis
Roundtrip price
₩287,400

Trending flights to Cross Keys

Prices were available within the past 7 days and start at ₩137,200 for one-way flights and ₩287,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Sep 17 - Wed, Sep 24
ICN
Seoul
STL
St. Louis
₩830,400 Roundtrip, found 15 hours ago
₩830,400
Roundtrip
found 15 hours ago
Select Air Canada flight, departing Wed, Sep 17 from Seoul to St. Louis, returning Wed, Sep 24, priced at ₩830,400 found 15 hours ago
*Available to Expedia members.