Dramatic sunrise panoramic view of the Veterans Memorial Bridge over the Missouri River at St. Charles, MO

CA $147 Cheap Flight to St. Charles County

View CA $147 flight on Tue, Jul 14, 2026Opens in a new window

Popular airlines to St. Charles County

  • American Airlines

  • United

  • Delta

  • Southwest Airlines

  • Frontier Airlines

  • Alaska Airlines

  • Air Canada

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How much is the cheapest flight to St. Charles County?

Prices were available within the past 7 days and start at CA $147 for one-way flights and CA $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Jul 1 - Tue, Jul 21
DTW
Detroit
STL
St. Louis
CA $297 Roundtrip, found 2 days ago
CA $297
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jul 1 from Detroit to St. Louis, returning Tue, Jul 21, priced at CA $297 found 2 days ago
Delta
Fri, Jul 3 - Tue, Jul 7
DTW
Detroit
STL
St. Louis
CA $298 Roundtrip, found 11 hours ago
CA $298
Roundtrip
found 11 hours ago
Select Delta flight, departing Fri, Jul 3 from Detroit to St. Louis, returning Tue, Jul 7, priced at CA $298 found 11 hours ago
Delta
Sat, Sep 5 - Tue, Sep 22
DTW
Detroit
STL
St. Louis
CA $302 Roundtrip, found 5 days ago
CA $302
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Sep 5 from Detroit to St. Louis, returning Tue, Sep 22, priced at CA $302 found 5 days ago
Delta
Sat, Jul 4 - Sat, Jul 18
DTW
Detroit
STL
St. Louis
CA $303 Roundtrip, found 14 hours ago
CA $303
Roundtrip
found 14 hours ago
Select Delta flight, departing Sat, Jul 4 from Detroit to St. Louis, returning Sat, Jul 18, priced at CA $303 found 14 hours ago
American Airlines
Tue, Jul 14 - Wed, Jul 15
DTW
Detroit
STL
St. Louis
CA $309 Roundtrip, found 3 hours ago
CA $309
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Jul 14 from Detroit to St. Louis, returning Wed, Jul 15, priced at CA $309 found 3 hours ago
American Airlines
Wed, Jul 1 - Fri, Jul 3
DTW
Detroit
STL
St. Louis
CA $311 Roundtrip, found 3 days ago
CA $311
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Jul 1 from Detroit to St. Louis, returning Fri, Jul 3, priced at CA $311 found 3 days ago
Delta
Sat, Jul 4 - Sat, Jul 18
DTW
Detroit
STL
St. Louis
CA $311 Roundtrip, found 14 hours ago
CA $311
Roundtrip
found 14 hours ago
Select Delta flight, departing Sat, Jul 4 from Detroit to St. Louis, returning Sat, Jul 18, priced at CA $311 found 14 hours ago
United
Tue, Sep 29 - Sat, Oct 17
YVR
Vancouver
STL
St. Louis
CA $398 Roundtrip, found 1 day ago
CA $398
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 29 from Vancouver to St. Louis, returning Sat, Oct 17, priced at CA $398 found 1 day ago
Air Canada
Wed, Oct 14 - Sat, Oct 17
YVR
Vancouver
STL
St. Louis
CA $477 Roundtrip, found 5 days ago
CA $477
Roundtrip
found 5 days ago
Select Air Canada flight, departing Wed, Oct 14 from Vancouver to St. Louis, returning Sat, Oct 17, priced at CA $477 found 5 days ago
WestJet
Mon, Sep 14 - Tue, Sep 15
YVR
Vancouver
STL
St. Louis
CA $531 Roundtrip, found 1 day ago
CA $531
Roundtrip
found 1 day ago
Select WestJet flight, departing Mon, Sep 14 from Vancouver to St. Louis, returning Tue, Sep 15, priced at CA $531 found 1 day ago

Trending flights to St. Charles County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Sep 29 - Sat, Oct 17
YVR
Vancouver
STL
St. Louis
CA $398 Roundtrip, found 1 day ago
CA $398
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 29 from Vancouver to St. Louis, returning Sat, Oct 17, priced at CA $398 found 1 day ago

Frequently asked questions

How do I find cheap flights to St. Charles County that have flexible change policies?
When it comes to flying these days, flexibility is essential. That's why we have a "No change fee" filter to help you find flexible, affordable airfares to St. Charles County. It's at the top left of your screen underneath the "Flexible change policies" heading.
Which airlines fly to St. Charles County?
Figure out your vacation dates and then make your way towards St. Charles County with one of these major airlines:

  • Southwest Airlines - 2,907 flights to or near St. Charles County each month, including 2,907 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • American Airlines - 810 flights to or near St. Charles County each month, including 810 flights to Lambert-St. Louis Intl. Airport (STL) per month.
  • United Airlines - 573 flights to or near St. Charles County each month, including 573 flights to Lambert-St. Louis Intl. Airport (STL) per month.

How can I find cheap tickets to St. Charles County?
One of the easiest ways to find cheap tickets to St. Charles County is to be flexible with your travel dates. Search for your flights, then click "flexible dates" at the top of your results. It will reveal the cheapest prices for nearby days. The best price for a flight to St. Charles County in the last seven days was CA $297. Booking well in advance will generally help you pick up an even better deal.
How much is a flight to St. Charles County?
If you were flying one way from Detroit (DTW), you could've snapped up a cheap fare for just CA $147 in the last seven days. Round-trip journeys to St. Charles County ranged from only CA $297 to CA $531 during this same period.
What are the most popular airports to fly into in St. Charles County?
Pack your bags and fly into Lambert-St. Louis Intl. Airport (STL), St. Charles County's major flight hub. Book a fare on one of the 5,094 flights that touch down here every month.
When is the cheapest time to fly to St. Charles County?
If you're not fixed on your travel dates to St. Charles County, try to leave earlier in the week. The cheapest day to take off is generally Tuesday, followed by Monday. Saturday is typically the priciest day, with many vacationers preferring to take off on the weekend.
How much is a plane ticket to St. Charles County?
In the last seven days, seats to St. Charles County fluctuated between CA $297 and CA $531. Prices tend to rise over time, so find a good deal today.
What months are the cheapest to book a flight to St. Charles County?
Snap up your ticket in February to unlock bargain flight deals to St. Charles County. The month of December is often the most expensive time to purchase a fare.

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Top Travel Tips for Flying to St. Charles County

Travel information

St. Charles County Flights Information

Airlines serving
Delta, American Airlines, United, Air Canada, WestJet
Roundtrip price
from CA $297
St. Charles County Flights Information
*Available to Expedia members.