Flight to St. Clair County

View S$227 flight on Sun, 3 May, 2026Opens in a new window

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Cheap round-trip flights to St. Clair County

Prices were available within the past 7 days and start at S$227 for one-way flights and S$391 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, 23 Apr - Tue, 28 Apr
SEA
Seattle
STL
St. Louis
S$391 Return, found 1 day ago
S$391
Return
found 1 day ago
Select Delta flight, departing Thu, 23 Apr from Seattle to St. Louis, returning Tue, 28 Apr, priced at S$391 found 1 day ago
American Airlines
Thu, 23 Apr - Tue, 28 Apr
SEA
Seattle
STL
St. Louis
S$395 Return, found 1 day ago
S$395
Return
found 1 day ago
Select American Airlines flight, departing Thu, 23 Apr from Seattle to St. Louis, returning Tue, 28 Apr, priced at S$395 found 1 day ago
Delta
Sun, 3 May - Mon, 4 May
SAT
San Antonio
STL
St. Louis
S$437 Return, found 1 day ago
S$437
Return
found 1 day ago
Select Delta flight, departing Sun, 3 May from San Antonio to St. Louis, returning Mon, 4 May, priced at S$437 found 1 day ago
American Airlines
Thu, 23 Apr - Tue, 28 Apr
SEA
Seattle
STL
St. Louis
S$452 Return, found 1 day ago
S$452
Return
found 1 day ago
Select American Airlines flight, departing Thu, 23 Apr from Seattle to St. Louis, returning Tue, 28 Apr, priced at S$452 found 1 day ago
United
Thu, 23 Apr - Tue, 28 Apr
SEA
Seattle
STL
St. Louis
S$465 Return, found 1 day ago
S$465
Return
found 1 day ago
Select United flight, departing Thu, 23 Apr from Seattle to St. Louis, returning Tue, 28 Apr, priced at S$465 found 1 day ago
Delta
Tue, 19 May - Tue, 26 May
MTY
Monterrey
STL
St. Louis
S$808 Return, found 1 day ago
S$808
Return
found 1 day ago
Select Delta flight, departing Tue, 19 May from Monterrey to St. Louis, returning Tue, 26 May, priced at S$808 found 1 day ago
EVA Airways
Fri, 28 Aug - Fri, 4 Sept
SIN
Singapore
STL
St. Louis
S$1,449 Return, found 5 days ago
S$1,449
Return
found 5 days ago
Select EVA Airways flight, departing Fri, 28 Aug from Singapore to St. Louis, returning Fri, 4 Sept, priced at S$1,449 found 5 days ago
Qatar Airways
Sat, 17 Oct - Sun, 25 Oct
SIN
Singapore
STL
St. Louis
S$1,722 Return, found 1 day ago
S$1,722
Return
found 1 day ago
Select Qatar Airways flight, departing Sat, 17 Oct from Singapore to St. Louis, returning Sun, 25 Oct, priced at S$1,722 found 1 day ago
Air Canada
Tue, 23 Jun - Thu, 9 Jul
SIN
Singapore
STL
St. Louis
S$1,766 Return, found 6 days ago
S$1,766
Return
found 6 days ago
Select Air Canada flight, departing Tue, 23 Jun from Singapore to St. Louis, returning Thu, 9 Jul, priced at S$1,766 found 6 days ago
Cathay Pacific
Sun, 6 Sept - Sat, 12 Sept
SIN
Singapore
STL
St. Louis
S$2,029 Return, found 10 hours ago
S$2,029
Return
found 10 hours ago
Select Cathay Pacific flight, departing Sun, 6 Sept from Singapore to St. Louis, returning Sat, 12 Sept, priced at S$2,029 found 10 hours ago

Trending flights to St. Clair 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.

EVA Airways
Fri, 28 Aug - Fri, 4 Sept
SIN
Singapore
STL
St. Louis
S$1,449 Return, found 5 days ago
S$1,449
Return
found 5 days ago
Select EVA Airways flight, departing Fri, 28 Aug from Singapore to St. Louis, returning Fri, 4 Sept, priced at S$1,449 found 5 days ago

Frequently asked questions

How do I find cheap flights to St. Clair County that have flexible change policies?
When it comes to flying these days, flexibility is important. That's why we have a "No change fee" search function to help you track down flexible, low-priced flights to St. Clair County. It's on the left-hand side of your screen directly under the "Flexible change policies" subheading.
Which airlines fly to St. Clair County?
Let Allegiant Air take you there. This well-known carrier provides 125 services every month to MidAmerica-St. Louis Airport (BLV), a St. Clair County gateway.
How can I find cheap tickets to St. Clair County?
A good strategy for walking away with cheap airfares is to be flexible with your dates. Start by searching for your flight to St. Clair County, then click on the "flexible dates" link for a list of prices for nearby days. Another good tip? Book ahead of time. For an idea of fares, S$391 was the best price for a flight to St. Clair County in the last seven days.
How much is a flight to St. Clair County?
In the last seven days, return flights to St. Clair County sold for as little as S$391 and peaked at S$2,029. For one-way trips taking off from San Antonio (SAT), the lowest amount paid during this time was just S$227.
What are the most popular airports to fly into in St. Clair County?
Pack your bags and fly into MidAmerica-St. Louis Airport (BLV), St. Clair County's main flight hub. Book a ticket on one of the 125 flights that touch down at this well-known destination every month.
When is the cheapest time to fly to St. Clair County?
Fly out on a Tuesday to improve your chances of nabbing the cheapest airfare to St. Clair County. Mondays are usually the second most affordable day to depart. Saturday is generally the priciest day to fly anywhere.
How much is a plane ticket to St. Clair County?
In the last seven days, seats ranged between S$391 and S$2,029. Swipe through our amazing deals to St. Clair County, pick your favourite and then get packing!
What is the best time to go to St. Clair County?
Mascoutah, St. Clair County's main city, is a terrific destination to explore at anytime. Don't like cold weather? Then journey here from June 20 onward in summer, when temperatures vary from 18ºC to 29ºC. March, May and June is when Mascoutah is really lively.
What months are the cheapest to book a flight to St. Clair County?
The ideal month to reserve a fabulous deal to St. Clair County is February, whereas prices are at their highest in December. Give this month a miss if you're counting your pennies.

Book with confidence

Expedia offers flights to St. Clair County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to St. Clair County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Travel information

St. Clair County Flights Information

Airlines serving
Delta, American Airlines, United, China Airlines, Qatar Airways, Air Canada, Cathay Pacific, EVA Airways
Roundtrip price
from S$391
St. Clair County Flights Information

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