Title: CA $222 Cheap Flights & Airfare to St Louis City County - Expedia.ca ![Forest Park featuring interior views, a garden and flowers](https://images.trvl-media.com/place/553248635823456129/987da154-473a-4aaf-b9f4-1bfa73e3e921.jpg?impolicy=fcrop&w=1200&h=500&q=medium) [St Louis City County Hotels](https://expedia.ca/Destinations-In-St-Louis-City-County.d553248635976432800.Hotel-Destinations)[Vacation Rentals in St Louis City County](https://expedia.ca/Destinations-In-St-Louis-City-County.d553248635976432800.Vacation-Rental-Destinations)[St Louis City County Car Rentals](https://expedia.ca/Destinations-In-St-Louis-City-County.d553248635976432800.Car-Rental-Destinations)[St Louis City County Vacations](https://expedia.ca/St-Louis-City-County.d553248635976432800.Destination-Travel-Guides) ## Popular airlines to St Louis City County - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## How much is the cheapest flight to St Louis City County? Prices were available within the past 7 days and start at CA $222 for one-way flights and CA $365 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Thu, Feb 12 - Thu, Feb 19 YUL Montreal STL St. Louis CA $365 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:STL,departure:12/02/2026TANYT&leg2=from:STL,to:YUL,departure:19/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:364.61&airProductToken=AQpmCjEIwYIBEgQzODMzGJhdIK4cKIf_hAMwu4CFAzhCQABYAWoFQkFTSUNyCE9WQUNaU0JYCjEIwYIBEgQxOTI2GK4cIPJcKMCChQMwioOFAzhCQAFYAWoFQkFTSUNyCE9WQUlWU0JYCmUKMAjBggESAzgxMBjyXCCuHCjQyYUDMKPKhQM4QkAAWAFqBUJBU0lDcghPVkFJVlNCWAoxCMGCARIEMzgzMxiuHCCYXSiqzIUDMLXNhQM4QkABWAFqBUJBU0lDcghPVkFDWlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Dec 6 - Sat, Dec 13 YYZ Toronto STL St. Louis CA $378 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:STL,departure:06/12/2025TANYT&leg2=from:STL,to:YYZ,departure:13/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:377.14&airProductToken=AQpnCjIIwYIBEgQzNTI0GJjOASCuHCi0_f4CMLv-_gI4QkAAWAFqBUJBU0lDcghPVkFDWlNCWAoxCMGCARIENDU5NRiuHCDyXCiAgv8CMNuC_wI4QkABWAFqBUJBU0lDcghPVkFJVVNCWAqcAQoxCMGCARIENDkyNBjyXCCuHCiA0_8CMOPT_wI4QkAAWAFqBUJBU0lDcghPVkFJVVNCWAoyCMGCARIEMTYzMhiuHCDimgEotNf_AjCu2P8COEJAAVgBagVCQVNJQ3IIT1ZBQ1pTQlgKMwjBggESBDMxOTcY4poBIJjOASjt2P8CMOLZ_wI4QkABWAFqBUJBU0lDcghPVkFDWlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Feb 2 - Fri, Feb 6 YHZ Halifax STL St. Louis CA $391 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YHZ,to:STL,departure:02/02/2026TANYT&leg2=from:STL,to:YHZ,departure:06/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:390.78&airProductToken=AQpzCjgI1YIBEgQzNDcxGPjJASDEjQEo442EAzCIj4QDOE5AAFgBagoxX2Jhc2ljZWNvcghHTkEyQTBCTgo3CNWCARIEMzQ2OBjEjQEg8lwosZGEAzDnkoQDOE5AAFgBagoxX2Jhc2ljZWNvcghHTkEyQTBCTgpzCjcI1YIBEgQzNTQ4GPJcIMSNASjst4QDMIm5hAM4TkAAWAFqCjFfYmFzaWNlY29yCEdOQTJBMEJOCjgI1YIBEgQzNTEzGMSNASD4yQEov7mEAzC3uoQDOE5AAFgBagoxX2Jhc2ljZWNvcghHTkEyQTBCThIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAs) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, Apr 22 - Sat, Apr 25 YHZ Halifax STL St. Louis CA $393 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YHZ,to:STL,departure:22/04/2026TANYT&leg2=from:STL,to:YHZ,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:392.02&airProductToken=AQpoCjIIwYYBEgM2MDUY-MkBIJjOASiQg4sDMKWEiwM4R0AAWAFqBUJBU0lDcghHTkEyQTBCQQoyCMGGARIEODk2ORiYzgEg8lwogoaLAzCIh4sDOEdAAVgBagVCQVNJQ3IIR05BMkEwQkEKbwo1CNWCARIEMjI3NRjyXCDEjQEo0qSLAzDqpYsDOE5AAFgBaghFQ09CQVNJQ3IIR05BMkEwQk4KNgjVggESBDM1MTMYxI0BIPjJASiaposDMJaniwM4TkABWAFqCEVDT0JBU0lDcghHTkEyQTBCThIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Fri, Sep 4 - Sat, Sep 12 YHZ Halifax STL St. Louis CA $393 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YHZ,to:STL,departure:04/09/2026TANYT&leg2=from:STL,to:YHZ,departure:12/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:392.41&airProductToken=AQqdAQozCMGGARIENzY4NRj4yQEg2LMBKIfxlgMwjPKWAzhHQABYAWoFQkFTSUNyCEdOQTJBMEJBCjIIwYYBEgM0NDcY2LMBIJjOASjA8pYDMIXzlgM4R0ABWAFqBUJBU0lDcghHTkEyQTBCQQoyCMGGARIEODk3MRiYzgEg8lwo4vSWAzDg9ZYDOEdAAVgBagVCQVNJQ3IIR05BMkEwQkEKZgoxCMGGARIEODY4OBjyXCCYXSj2zpcDMIvQlwM4R0AAWAFqBUJBU0lDcghHTkEyQTBCQQoxCMGGARIDNjcwGJhdIPjJASix0ZcDMI_SlwM4R0ABWAFqBUJBU0lDcghHTkEyQTBCQRIKCAEQARgBKgJBQxgBIgQIARABKAIoAygEMA0) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Thu, Jan 15 - Sun, Jan 18 YYZ Toronto STL St. Louis CA $397 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YYZ,to:STL,departure:15/01/2026TANYT&leg2=from:STL,to:YYZ,departure:18/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:396.02&airProductToken=AQpnCjIIwYIBEgQzNjA0GJjOASCuHCiDwoIDMPbCggM4QkAAWAFqBUJBU0lDcghPVkFDWlNCWAoxCMGCARIEMzczMBiuHCDyXCj5xIIDMM7FggM4QkABWAFqBUJBU0lDcghPVkFJWlNCWApnCjEIwYIBEgQzNzQxGPJcIK4cKNDhggMwp-KCAzhCQABYAWoFQkFTSUNyCE83QVpaU0JaCjIIwYIBEgQzNjA4GK4cIJjOASiI5YIDMO_lggM4QkABWAFqBUJBU0lDcghPVkFDWlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Mon, Feb 2 - Fri, Feb 6 YHZ Halifax STL St. Louis CA $400 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YHZ,to:STL,departure:02/02/2026TANYT&leg2=from:STL,to:YHZ,departure:06/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:399.82&airProductToken=AQpvCjYI1YIBEgQzNDcxGPjJASDEjQEo442EAzCIj4QDOE5AAFgBaghFQ09CQVNJQ3IIR05BMkEwQk4KNQjVggESBDM0NjgYxI0BIPJcKLGRhAMw55KEAzhOQAFYAWoIRUNPQkFTSUNyCEdOQTJBMEJOCmgKMgjBhgESBDg5NzAY8lwgmM4BKI28hAMwhr2EAzhHQABYAWoFQkFTSUNyCEdOQTJBMEJBCjIIwYYBEgM2MjAYmM4BIPjJASjzvYQDMPa-hAM4R0ABWAFqBUJBU0lDcghHTkEyQTBCQRIKCAEQARgBKgJVQRgBIgQIARABKAIoAygEMAE) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Wed, Apr 22 - Sat, Apr 25 YHZ Halifax STL St. Louis CA $402 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YHZ,to:STL,departure:22/04/2026TANYT&leg2=from:STL,to:YHZ,departure:25/04/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:401.19&airProductToken=AQpoCjIIwYYBEgM2MDUY-MkBIJjOASiQg4sDMKWEiwM4R0AAWAFqBUJBU0lDcghHTkEyQTBCQQoyCMGGARIEODk2ORiYzgEg8lwogoaLAzCIh4sDOEdAAVgBagVCQVNJQ3IIR05BMkEwQkEKaAoyCMGGARIEODk3MBjyXCCYzgEokamLAzCGqosDOEdAAFgBagVCQVNJQ3IIR05BMkEwQkEKMgjBhgESAzYxOBiYzgEg-MkBKPeqiwMw-KuLAzhHQAFYAWoFQkFTSUNyCEdOQTJBMEJBEgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Jan 17 - Sat, Jan 24 YVR Vancouver STL St. Louis CA $416 Roundtrip found 2 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:STL,departure:17/01/2026TANYT&leg2=from:STL,to:YVR,departure:24/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:415.15&airProductToken=AQpFCiEIxJgBEgQxMDY0GLiNASDyEije2oIDMOnbggM4RUAAWAEKIAjEmAESBDI2NjYY8hIg8lwostyCAzDX3YIDOEVAAVgBCkUKIAjEmAESBDE1OTcY8lwgzHwomqWDAzD6pYMDOEVAAFgBCiEIxJgBEgQyNDgyGMx8ILiNASjJpoMDMLWogwM4RUABWAESCggBEAEYASoCREwYASIECAEQASgEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Feb 14 - Sat, Feb 21 YVR Vancouver STL St. Louis CA $500 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YVR,to:STL,departure:14/02/2026TANYT&leg2=from:STL,to:YVR,departure:21/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:499.11&airProductToken=AQpECiEIwaYBEgQyMzA0GLiNASCSASiokoUDMOuShQM4WEAAWAEKHwjBpgESAzYxOBiSASDyXCigk4UDMIiVhQM4WEABWAEKRAofCMGmARIDMzE0GPJcIJIBKKfkhQMwseaFAzhYQABYAQohCMGmARIEMjA0MRiSASC4jQEoy-eFAzCH6IUDOFhAAVgBEgoIARABGAEqAkFTGAEiBAgBEAEoBDAB) ## Top Travel Tips for Flying to St Louis City County Get ready for an incredible adventure as you embark on your journey to St Louis City County. With Expedia, finding the perfect flights is a breeze. Discover valuable travel insights and expert tips to ensure a seamless and enjoyable trip to this captivating destination. **Unleash Your Wanderlust** Pack your bags, secure your flights to St Louis City County, and let Expedia be your trusted companion in fulfilling your travel dreams. Our wide selection of flights offers you the flexibility to explore St Louis City County in your own unique style. Experience the trip of a lifetime with just a click, courtesy of Expedia. **Unbeatable Value with Expedia** At Expedia, we understand the importance of budget-friendly travel. That's why we are dedicated to bringing you the best deals on affordable and cheap flights from the UK to St Louis City County. Experience the perfect balance between adventure and savings with our competitively-priced roundtrip and one-way flight options. **Endless Flight Choices** With 20 different airlines flying to St Louis City County, you have a world of options at your fingertips. Whether you're a spontaneous traveler or a meticulous planner, find the flights that suit your schedule and preferences seamlessly. Explore last-minute deals or plan ahead with ease. **Empowering Your Decision** We believe in putting you in control of your travel choices. Our extensive range of airline tickets to St Louis City County caters to every budget, starting from the lowest price CA $222. Enjoy the freedom to choose the perfect flights that align with your needs and desires. **Effortless Booking Process** Experience a hassle-free booking journey with Expedia. Whether you're seeking a red-eye flight, a direct route to a specific airport, or one-way flights to St Louis City County, our streamlined booking process ensures convenience and efficiency. Download our mobile booking app to reserve your flights anytime, anywhere. **Your Adventure Awaits** It's time to make your dreams a reality. Book your airfare to St Louis City County today with Expedia. Begin crafting your unique travel story and get ready for an unforgettable experience that caters to your tastes and budget. Start your journey now and let the adventure unfold. ## St Louis City County Flights Information | Airlines serving | American Airlines, United, Air Canada, Delta, Alaska Airlines | | --- | --- | | Roundtrip price | from CA $365 | ## Frequently asked questions ### How do I find cheap flights to St Louis City County that have flexible change policies? > By using our smart "No change fee" filter, that's how. Simply type in your preferred dates and destination, click the "Search" button, then tick the checkbox underneath the "Flexible change policies" heading (it's on the left). Expedia makes it easy to find flexible, low-priced flights to St Louis City County. ### Which airlines fly to St Louis City County? > When you're ready to book your airfare to or near St Louis City County, these popular carriers are waiting to welcome you aboard: > > > > - Southwest Airlines - 2,907 flights to or near St Louis City County each month, including 2,907 flights to Lambert-St. Louis Intl. Airport (STL) per month. > - American Airlines - 810 flights to or near St Louis City County each month, including 810 flights to Lambert-St. Louis Intl. Airport (STL) per month. > - United Airlines - 573 flights to or near St Louis City County each month, including 573 flights to Lambert-St. Louis Intl. Airport (STL) per month. ### How can I find cheap tickets to St Louis City County? > Book well in advance, fly to or from nearby airports, avoid vacation periods — there are loads of ways! Another one is to use Expedia's "flexible dates" feature. Search for your St Louis City County flight, then compare the prices for nearby dates. In the last seven days, the best price for a flight to St Louis City County was CA $365. ### How much is a flight to St Louis City County? > There were plenty of affordable fares for the taking in the last seven days, with the cost of a round-trip flight to St Louis City County ranging between CA $365 and CA $500. Many lucky travellers purchased one-way tickets from Toronto (YYZ) for as little as CA $222. ### What are the most popular airports to fly into in St Louis City County? > Lambert-St. Louis Intl. Airport (STL) is the primary gateway for those eager to explore St Louis City County. Roughly 5,094 flights every month touch down here. ### When is the cheapest time to fly to St Louis City County? > If you can be flexible with your travel dates to St Louis City County, try to leave earlier in the week. The cheapest day to take off is generally Tuesday, followed closely by Monday. Saturday is typically the most expensive day, with a lot of people preferring to take off on the weekend. ### How much is a plane ticket to St Louis City County? > Seats to St Louis City County ranged from CA $365 to CA $500 in the last seven days. Usually, the earlier you book the bigger the bargain. ### What months are the cheapest to book a flight to St Louis City County? > A cheap month to reserve a flight to St Louis City County is February, while prices rise considerably in December. 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Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Thu, Feb 12 - Thu, Feb 19 YUL Montreal STL St. Louis CA $365 Roundtrip just found [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:YUL,to:STL,departure:12/02/2026TANYT&leg2=from:STL,to:YUL,departure:19/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:364.61&airProductToken=AQpmCjEIwYIBEgQzODMzGJhdIK4cKIf_hAMwu4CFAzhCQABYAWoFQkFTSUNyCE9WQUNaU0JYCjEIwYIBEgQxOTI2GK4cIPJcKMCChQMwioOFAzhCQAFYAWoFQkFTSUNyCE9WQUlWU0JYCmUKMAjBggESAzgxMBjyXCCuHCjQyYUDMKPKhQM4QkAAWAFqBUJBU0lDcghPVkFJVlNCWAoxCMGCARIEMzgzMxiuHCCYXSiqzIUDMLXNhQM4QkABWAFqBUJBU0lDcghPVkFDWlNCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) \*Available to Expedia members.