$43 Cheap Flights to Fort Knox, KY

View $43 flight on Mon, May 18, 2026Opens in a new window

Popular airlines to Fort Knox

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How much is the cheapest flight to Fort Knox?

Prices were available within the past 7 days and start at $43 for one-way flights and $86 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, May 8 - Fri, May 15
FLL
Fort Lauderdale
SDF
Louisville
$86 Roundtrip, found 1 hour ago
$86
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, May 8 from Fort Lauderdale to Louisville, returning Fri, May 15, priced at $86 found 1 hour ago
Breeze Airways
Sun, Aug 2 - Sun, Aug 9
FLL
Fort Lauderdale
SDF
Louisville
$148 Roundtrip, found 4 days ago
$148
Roundtrip
found 4 days ago
Select Breeze Airways flight, departing Sun, Aug 2 from Fort Lauderdale to Louisville, returning Sun, Aug 9, priced at $148 found 4 days ago
Southwest Airlines
Tue, May 5 - Wed, May 6
LGA
New York
SDF
Louisville
$182 Roundtrip, found 3 days ago
$182
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Tue, May 5 from New York to Louisville, returning Wed, May 6, priced at $182 found 3 days ago
American Airlines
Wed, Jun 10 - Tue, Jun 23
BWI
Baltimore
SDF
Louisville
$217 Roundtrip, found 4 hours ago
$217
Roundtrip
found 4 hours ago
Select American Airlines flight, departing Wed, Jun 10 from Baltimore to Louisville, returning Tue, Jun 23, priced at $217 found 4 hours ago
Delta
Wed, Jun 10 - Tue, Jun 23
BWI
Baltimore
SDF
Louisville
$217 Roundtrip, found 4 hours ago
$217
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Jun 10 from Baltimore to Louisville, returning Tue, Jun 23, priced at $217 found 4 hours ago

Alternative airports near Fort Knox

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Louisville Intl. SDF. Cheapest option available. Flights from $388
SDF
Louisville Intl.
Cheapest
Flights from $388

Frequently asked questions

What month is the cheapest to fly to Fort Knox?
May is the cheapest month to fly to Fort Knox. There's less demand then, so you're likely to get a good deal. Organizing your trip outside of public holidays and school breaks could also help you save.
Which US cities have the cheapest flights to Fort Knox?
Chicago, Atlanta and Dallas typically have cheap flights to Fort Knox. Keep in mind that prices may vary based on factors such as time of year, demand and number of stopovers.
Which US cities fly direct to Fort Knox?
You can fly to Fort Knox without any stops from 30 US cities. To find a nonstop trip, use the "Direct flights only" filter when browsing for flights to Fort Knox on Expedia. Then, explore the options and pick the best departure out of any of these cities:

  • Chicago
  • Atlanta
  • Dallas
  • New York
  • Charlotte

How to find a cheap flight to Fort Knox?
If you're eager to find cheap flights to Fort Knox, consider traveling outside of peak season. Booking in advance is also likely to help you score savings. Or, fly on a different day — flights on a Thursday are on average 16% cheaper than Sunday departures.* Sign up to receive price alerts on the Expedia app and you'll be instantly notified when fares fall.*Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
How to get a cheap last-minute flight to Fort Knox?
Being flexible about your travel plans may help you find last-minute offers on cheap flights to Fort Knox. To view all the available options, try exploring different ticket types, changing your Fort Knox vacation dates, leaving from an alternative airport or going with another airline.
How far in advance should I book a flight to Fort Knox?
Book your flight to Fort Knox two to four months ahead if you're coming in from an international destination. For domestic travel, the recommendation is around 28 days in advance. Lower prices and a greater choice of travel dates, schedules and seating options are just some of the awesome benefits of booking early.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which day of the week is the cheapest day to buy a plane ticket to Fort Knox?
You can generally find cheap flights to Fort Knox on Sundays. You'll save about 8% on average compared to those who book on a Friday, which is often the most expensive day to buy tickets.**Best day of the week to book, depart and ideal booking window recommendations based on average round-trip ticket prices for January through August 2023, sourced from Airline Reporting Corporation's (ARC) global airline sales database. Percentages noted are averages.
Which airlines fly to Fort Knox?
Fort Knox has connections to 28 airports worldwide through 6 carriers, with Louisville Intl. Airport (SDF) as its chief gateway. Pick from these leading airlines to Fort Knox when planning your journey:

  • Delta Air Lines
  • American Airlines
  • United Airlines
  • Spirit Airlines

Where do you fly into Fort Knox?
When you're flying to Fort Knox, the main airport to arrive at is Louisville Intl. Airport (SDF). You can also head to nearby hubs like Elizabethtown, KY (EKX-Elizabethtown Regional), Bardstown, KY (BRY-Samuels Field) or Bowman Field Airport (LOU). Another option to think about when you fly to Fort Knox is French Lick, IN (FRH-French Lick Municipal).
How far is the airport from central Fort Knox?
You'll be roughly 20 mi northeast of central Fort Knox after jetting into Louisville Intl. Airport (SDF).
Can I save money by booking a Fort Knox trip package?
You could potentially save hundreds of dollars if you secure a Fort Knox flight and hotel package deal on Expedia. And you'll make life easier by having all your travel arrangements in the same place. Try bundling hotels and flights with add-ons like activities and car rentals for your own personalized Fort Knox getaway.
Can I change or cancel my flight to Fort Knox?
If you bought your flight to Fort Knox in the last 24 hours, you can typically cancel or change it without fees. After that, extra charges may apply depending on the airline's rules and restrictions. For more information, visit our Customer Service Portal. Keep in mind that some flights are non-refundable, so you may receive a credit toward future travel instead of a direct refund. When searching on Expedia, select the "Changes included" or "No cancel fee" filters to find tickets with flexible change policies.

*Flight schedules are subject to change.

*Available to One Key members.

 

Travel information

Destination airport
Louisville Intl.
Destination airport IATA code
SDF
Destination city name
Louisville
Roundtrip price
$86

Trending flights to Fort Knox

Prices were available within the past 7 days and start at $43 for one-way flights and $86 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Fri, May 8 - Fri, May 15
FLL
Fort Lauderdale
SDF
Louisville
$86 Roundtrip, found 1 hour ago
$86
Roundtrip
found 1 hour ago
Select Spirit Airlines flight, departing Fri, May 8 from Fort Lauderdale to Louisville, returning Fri, May 15, priced at $86 found 1 hour ago

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