$359 Cheap Flights from Louisville (SDF) to Sudbury (YSB)

View $359 flight on Sun, Apr 12, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Sudbury, ON (YSB-Greater Sudbury)

Cheap Flights from Louisville to Sudbury (SDF-YSB)

Prices were available within the past 7 days and start at $359 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Louisville (SDF) to Sudbury (YSB)
Origin airport
Louisville Intl.
Destination airport
Greater Sudbury
Distance
634 mi

Louisville to Sudbury Flights

The cheapest times to fly from Louisville to Sudbury

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 Louisville to Sudbury are during the month of . You can find some of the cheapest flights from Louisville to Sudbury with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Sudbury

Sunday is one of the best days to book for cheap flights from Louisville to Sudbury: 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 Louisville to Sudbury

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 Louisville to Sudbury in 2026. You can also book with separate airlines for your outbound and return journeys, from $359 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 Louisville to Sudbury 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 Louisville to Sudbury 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.

 

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB) cost?
Secure a cheap one-way flight from $359 or cheap return flight from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB)?
Traveling in is a good way to save, as it's the cheapest month for flights between SDF and YSB. You'll typically find the lowest fares during off-peak months.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB)?
To find the cheapest airline that'll fly you from SDF to YSB, use Expedia's filter tool. Customize your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB)?
You'll need to hop on a flight with a layover when traveling from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from SDF to YSB?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change depending on the time of year, carrier 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 Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB) route, travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB) last-minute?
Waiting until right before your break to book a flight from SDF to YSB generally means paying more. While you may find some last-minute offers, they're not always guaranteed. Be flexible with your itinerary for the best chance of snagging a bargain.
Is it cheaper to book a SDF to YSB flight and hotel package?
Compared with arranging hotels and flights separately, booking a SDF to YSB flight and hotel package with Expedia could lead to significant savings. Better still, managing everything in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Greater Sudbury Airport (YSB)?
In most cases, you can reschedule or cancel your SDF to YSB flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need more details, visit our Customer Service portal.

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*Available to One Key members.