Cheap Flights from St. Louis (STL) to Sioux Lookout (YXL)

Popular airlines from St. Louis Lambert Intl. Airport (STL) to Sioux Lookout, ON (YXL-Sioux Lookout Airport)

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Frequently asked questions

How much does a flight from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL) cost?
Grab a cheap one-way flight or cheap return flight from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL)?
Traveling in can help you save, as it's the cheapest month for flights between STL and YXL. You'll often find the lowest prices during the off-season.
What is the cheapest airline that flies from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL)?
To find the cheapest airline flying from STL to YXL, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL)?
Nonstop flights from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel details and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from STL to YXL?
Typically you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL)?
To avoid possible delays on the Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL) last-minute?
Last-minute bookings from STL to YXL are typically more expensive. For the cheapest rates, start searching for flights ahead of time. That being said, if you're flexible with your travel dates, you may find a cheap ticket right before you leave.
Is it cheaper to book a STL to YXL flight and hotel package?
You can save money by booking a STL to YXL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one convenient place. After choosing your preferred accommodations and flights, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Lambert-St. Louis Intl. Airport (STL) to Sioux Lookout Airport Airport (YXL)?
If you reserved your STL to YXL flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for further details.

Travel information

Origin airport
Lambert-St. Louis Intl.
Destination airport
Sioux Lookout Airport
Distance
789 mi

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St. Louis to Sioux Lookout Flights

The cheapest times to fly from St. Louis to Sioux Lookout

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from St. Louis to Sioux Lookout are during the month of . You can find some of the cheapest flights from St. Louis to Sioux Lookout with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from St. Louis to Sioux Lookout

Sunday is one of the best days to book for cheap flights from St. Louis to Sioux Lookout: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from St. Louis to Sioux Lookout

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from St. Louis to Sioux Lookout in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap St. Louis to Sioux Lookout flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your St. Louis to Sioux Lookout airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

St. Louis to Sioux Lookout Flights

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