$523 Cheap Flights from Louisville (SDF) to Deer Lake (YDF)

View $523 flight on Sun, Jul 5, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Deer Lake, NL (YDF-Deer Lake Regional)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Louisville to Deer Lake (SDF-YDF)

Prices were available within the past 7 days and start at $523 for one-way flights and $1,029 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,029 Roundtrip, found 3 days ago
$1,029
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,029 found 3 days ago
Air Canada
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,036 Roundtrip, found 3 days ago
$1,036
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,036 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,037 Roundtrip, found 3 days ago
$1,037
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,037 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,044 Roundtrip, found 3 days ago
$1,044
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,044 found 3 days ago
Air Canada
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,048 Roundtrip, found 3 days ago
$1,048
Roundtrip
found 3 days ago
Select Air Canada flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,048 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,052 Roundtrip, found 3 days ago
$1,052
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,052 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,053 Roundtrip, found 3 days ago
$1,053
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,053 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,054 Roundtrip, found 3 days ago
$1,054
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,054 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,055 Roundtrip, found 3 days ago
$1,055
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,055 found 3 days ago
United
Sun, Jul 5 - Sat, Jul 11
SDF
Louisville
YDF
Deer Lake
$1,057 Roundtrip, found 3 days ago
$1,057
Roundtrip
found 3 days ago
Select United flight, departing Sun, Jul 5 from Louisville to Deer Lake, returning Sat, Jul 11, priced at $1,057 found 3 days ago

Black Friday Sale

Limited-time deals: Save up to 50% on select hotels.
Book now
Flights from Louisville (SDF) to Deer Lake (YDF)
Origin airport
Louisville Intl.
Destination airport
Deer Lake Regional
Roundtrip price
$1,029
Distance
1594 mi

Louisville to Deer Lake Flights

The cheapest times to fly from Louisville to Deer Lake

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

 

The best time to book a flight from Louisville to Deer Lake

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

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 Deer Lake in 2025. You can also book with separate airlines for your outbound and return journeys, from $523 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 Deer Lake 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 Deer Lake 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 Deer Lake Regional Airport (YDF) cost?
Secure a cheap one-way flight from $523 or cheap return flight from $1,029 from Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF) 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 Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF)?
Flying in July is a good way to save, as it's the cheapest month for flights between SDF and YDF. You'll usually find the lowest prices during off-peak months.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to find the carrier with the cheapest SDF to YDF flight.
How many flights per day from Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF)?
Nonstop flights from Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF) 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 SDF to YDF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change based on a range of factors, including the time of year and carrier.*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 Deer Lake Regional Airport (YDF)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF) route, aim to fly before 3 PM. Flights 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 Deer Lake Regional Airport (YDF) last-minute?
Last-minute bookings from SDF to YDF are usually more expensive. To secure the best prices, start looking for flights ahead of time. That said, if your travel plans are flexible, you may score a cheap ticket right before you leave.
Is it cheaper to book a SDF to YDF flight and hotel package?
Securing a SDF to YDF flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels in one place. Pick from our wide range of hotels and then add car rentals, flights and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Deer Lake Regional Airport (YDF)?
It's usually possible to cancel or reschedule your SDF to YDF flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.