Cheap Flights from Kalgoorlie - Boulder (KGI) to St. Louis (STL)

Popular airlines from Kalgoorlie - Boulder, WA (KGI) to St. Louis Lambert Intl. Airport (STL)

Frequently asked questions

How much does a flight from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL) cost?
Snag a cheap one-way flight or cheap return flight from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL) 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 Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL)?
The cheapest month to fly from KGI to STL is , when demand is low. Off-peak season is generally when airlines offer better prices between these airports.
What is the cheapest airline that flies from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL)?
Expedia's filter tool lets you easily compare airlines, flight times and baggage options all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest KGI to STL flight.
How many flights per day from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL)?
Nonstop flights from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from KGI to STL?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL)?
To avoid possible delays on the Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL) route, aim to travel before 3 PM. Departures after this time 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 Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL) last-minute?
Last-minute fares from KGI to STL are usually more expensive. To secure the cheapest rates, start looking for flights well in advance. That said, if you're flexible with your travel plans, you may score a cheap ticket just before your departure.
Is it cheaper to book a KGI to STL flight and hotel package?
You'll typically save money by securing a KGI to STL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. Once you've selected your ideal flights and accommodations, consider other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Kalgoorlie - Boulder Airport (KGI) to Lambert-St. Louis Intl. Airport (STL)?
Typically, you're able to cancel or reschedule your KGI to STL flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Double-check your itinerary for the airline's guidelines and fees on flight changes, or if you need further details, go to our Customer Service portal.

Travel information

Travel information

Origin airport
Kalgoorlie - Boulder
Destination airport
Lambert-St. Louis Intl.
Distance
10558 mi

Book with confidence

Book with confidence

Kalgoorlie - Boulder to St. Louis Flights

The cheapest times to fly from Kalgoorlie - Boulder to St. Louis

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 Kalgoorlie - Boulder to St. Louis are during the month of . You can find some of the cheapest flights from Kalgoorlie - Boulder to St. Louis with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Kalgoorlie - Boulder to St. Louis

Sunday is one of the best days to book for cheap flights from Kalgoorlie - Boulder to St. Louis: 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 Kalgoorlie - Boulder to St. Louis

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 Kalgoorlie - Boulder to St. Louis 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 Kalgoorlie - Boulder to St. Louis 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 Kalgoorlie - Boulder to St. Louis 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.

 

Kalgoorlie - Boulder to St. Louis Flights

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*Available to One Key members.