CA $170 Cheap Flight to St. Charles County

View CA $170 flight on Sat, Sep 5, 2026Opens in a new window

Popular airlines to St. Charles County

  • American Airlines

  • Delta

  • United

  • Frontier Airlines

  • Southwest 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 $170 for one-way flights and CA $272 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, May 11 - Tue, May 12
SEA
Seattle
STL
St. Louis
CA $272 Roundtrip, found 6 days ago
CA $272
Roundtrip
found 6 days ago
Select Delta flight, departing Mon, May 11 from Seattle to St. Louis, returning Tue, May 12, priced at CA $272 found 6 days ago
Delta
Thu, May 7 - Tue, May 12
SEA
Seattle
STL
St. Louis
CA $311 Roundtrip, found 6 days ago
CA $311
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, May 7 from Seattle to St. Louis, returning Tue, May 12, priced at CA $311 found 6 days ago
American Airlines
Sat, Sep 5 - Sat, Sep 12
SEA
Seattle
STL
St. Louis
CA $340 Roundtrip, found 4 days ago
CA $340
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Sep 5 from Seattle to St. Louis, returning Sat, Sep 12, priced at CA $340 found 4 days ago
Delta
Wed, Jun 17 - Wed, Jun 24
SEA
Seattle
STL
St. Louis
CA $356 Roundtrip, found 6 days ago
CA $356
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Jun 17 from Seattle to St. Louis, returning Wed, Jun 24, priced at CA $356 found 6 days ago
Air Canada
Thu, Oct 15 - Sat, Oct 17
YVR
Vancouver
STL
St. Louis
CA $365 Roundtrip, found 4 days ago
CA $365
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Oct 15 from Vancouver to St. Louis, returning Sat, Oct 17, priced at CA $365 found 4 days ago
United
Wed, Sep 30 - Tue, Oct 13
YVR
Vancouver
STL
St. Louis
CA $368 Roundtrip, found 6 days ago
CA $368
Roundtrip
found 6 days ago
Select United flight, departing Wed, Sep 30 from Vancouver to St. Louis, returning Tue, Oct 13, priced at CA $368 found 6 days ago
Air Canada
Thu, Oct 15 - Sat, Oct 31
YVR
Vancouver
STL
St. Louis
CA $370 Roundtrip, found 1 day ago
CA $370
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Oct 15 from Vancouver to St. Louis, returning Sat, Oct 31, priced at CA $370 found 1 day ago
Delta
Fri, May 8 - Mon, May 11
SEA
Seattle
STL
St. Louis
CA $372 Roundtrip, found 6 days ago
CA $372
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, May 8 from Seattle to St. Louis, returning Mon, May 11, priced at CA $372 found 6 days ago
United
Tue, Sep 1 - Wed, Sep 2
YVR
Vancouver
STL
St. Louis
CA $373 Roundtrip, found 1 day ago
CA $373
Roundtrip
found 1 day ago
Select United flight, departing Tue, Sep 1 from Vancouver to St. Louis, returning Wed, Sep 2, priced at CA $373 found 1 day ago
Alaska Airlines
Tue, Jun 9 - Sat, Jun 13
SEA
Seattle
STL
St. Louis
CA $390 Roundtrip, found 4 days ago
CA $390
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Jun 9 from Seattle to St. Louis, returning Sat, Jun 13, priced at CA $390 found 4 days 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.

Air Canada
Thu, Oct 15 - Sat, Oct 17
YVR
Vancouver
STL
St. Louis
CA $365 Roundtrip, found 4 days ago
CA $365
Roundtrip
found 4 days ago
Select Air Canada flight, departing Thu, Oct 15 from Vancouver to St. Louis, returning Sat, Oct 17, priced at CA $365 found 4 days 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 $272. 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 Seattle (SEA), you could've snapped up a cheap fare for just CA $170 in the last seven days. Round-trip journeys to St. Charles County ranged from only CA $272 to CA $390 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 $272 and CA $390. 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
American Airlines, Alaska Airlines, Air Canada, Delta, United
Roundtrip price
from CA $272
St. Charles County Flights Information

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