Cheap Flights from Louisville (SDF) to Unalaska (DUT)

Popular airlines from Louisville Intl. Airport (SDF) to Unalaska, AK (DUT)

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT) cost?
Snag a cheap one-way flight or cheap return flight from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT) 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 Unalaska Airport (DUT)?
Planning your getaway for is a great way to save, as it's the cheapest month for flights between SDF and DUT. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT)?
Use the filter tool on Expedia to compare different airlines and find the most affordable carrier that'll fly you from SDF to DUT. Then, sort your results by "Price (lowest to highest)" to snag the best deal available.
How many flights per day from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT)?
Direct flights from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT) 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 click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDF to DUT?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* But this can change depending on the airline, season 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 Unalaska Airport (DUT)?
To avoid possible delays on the Louisville Intl. Airport (SDF) to Unalaska Airport (DUT) route, 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 Louisville Intl. Airport (SDF) to Unalaska Airport (DUT) last-minute?
Holding off until just before your departure to book a ticket from SDF to DUT generally means paying more. Although you may find some last-minute discounts, they're not always guaranteed. Keep your travel plans flexible to boost your chances of landing a bargain.
Is it cheaper to book a SDF to DUT flight and hotel package?
You'll typically save money by booking a SDF to DUT 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 chosen your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Unalaska Airport (DUT)?
It's usually possible to cancel or reschedule your SDF to DUT flight. However, if it's been more than 24 hours since booking, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Louisville Intl.
Destination airport
Unalaska
Distance
3799 mi

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Louisville to Unalaska Flights

The cheapest times to fly from Louisville to Unalaska

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

 

The best time to book a flight from Louisville to Unalaska

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

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 Unalaska 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 Louisville to Unalaska 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 Unalaska 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.

 

Louisville to Unalaska Flights

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*Available to One Key members.