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Delaware

$92+ Cheap flights from Louisville (SDF) to Delaware

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap flight deals from Louisville to Delaware

Keep the following information in mind while searching for Louisville to Delaware flight deals. Data was last updated September 15, 2025.

Round-trip from

$174
(Cheapflightsfares)

One-way from

$92
(Cheapflightsfares)

Popular in

September

Cheapest in

June

Average price

$674
From Louisville Intl to Delaware
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One-way flight from Louisville Intl to Delaware
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Highest demand for flights based on searches. 18% potential increase in price ($105 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Louisville to Delaware

Cheapest flights from Louisville to Delaware
Explore the most affordable flight options available from Louisville to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/85:31 pmSDF - PHL
1 stop6h 05mSpirit Airlines
Sat 10/2511:30 amPHL - SDF
1 stop11h 17mSpirit Airlines
Deal found 9/13$174
This Cheapflightsfares deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:31 pmSDF - PHL
1 stop6h 05mSpirit Airlines
Wed 10/225:33 amPHL - SDF
1 stop11h 03mSpirit Airlines
Deal found 9/15$183
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:15 amSDF - PHL
1 stop5h 38mSpirit Airlines
Wed 10/295:33 amPHL - SDF
1 stop11h 03mSpirit Airlines
Deal found 9/14$185
This Kiwi.com deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/117:15 amSDF - PHL
1 stop7h 10mMultiple Airlines
Tue 10/149:14 pmPHL - SDF
1 stop20h 41mMultiple Airlines
Deal found 9/13$186
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:31 pmSDF - PHL
1 stop21h 17mMultiple Airlines
Tue 10/219:14 pmPHL - SDF
1 stop20h 41mMultiple Airlines
Deal found 9/15$202
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2411:47 amSDF - PHL
1 stop7h 02mMultiple Airlines
Tue 10/286:50 pmPHL - SDF
1 stop23h 05mMultiple Airlines
Deal found 9/14$206
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/177:15 amSDF - PHL
1 stop10h 43mMultiple Airlines
Tue 10/219:14 pmPHL - SDF
1 stop20h 41mMultiple Airlines
Deal found 9/15$209
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/611:47 amSDF - PHL
1 stop12h 12mMultiple Airlines
Tue 10/79:14 pmPHL - SDF
1 stop20h 41mMultiple Airlines
Deal found 9/15$211
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/155:31 pmSDF - PHL
1 stop21h 17mMultiple Airlines
Thu 10/235:33 amPHL - SDF
1 stop12h 30mMultiple Airlines
Deal found 9/15$216
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/107:15 amSDF - PHL
1 stop17h 52mMultiple Airlines
Mon 10/135:05 amPHL - SDF
1 stop28h 06mMultiple Airlines
Deal found 9/15$218
This Cheapflightsfares deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3111:47 amSDF - PHL
1 stop7h 02mSpirit Airlines
Sun 11/25:33 amPHL - SDF
1 stop12h 30mSpirit Airlines
Deal found 9/14$222
This KAYAK deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:55 amSDF - PHL
1 stop13h 37mSpirit Airlines
Mon 11/178:05 pmPHL - SDF
1 stop13h 54mSpirit Airlines
Deal found 9/14$225

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Delaware that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
Use the filters below to find and compare flights from Louisville to Delaware that are best for you.

Fly from

Louisville

Fly to

Delaware

Route

Depart

Return

Price

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 10/15

5:31 pm-11:36 pm

1 stop6h 05m

Philadelphia

Wed 10/22

5:33 am-4:36 pm

1 stop11h 03m

$183

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 10/23

7:15 am-1:13 am

1 stop17h 58m

Philadelphia

Tue 10/28

6:50 pm-5:55 pm

1 stop23h 05m

$186

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 10/24

11:47 am-6:49 pm

1 stop7h 02m

Philadelphia

Tue 10/28

6:50 pm-5:55 pm

1 stop23h 05m

$206

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 11/14

10:55 am-12:32 am

1 stop13h 37m

Philadelphia

Sun 11/16

8:05 pm-9:59 am

1 stop13h 54m

$225

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 10/3

8:23 am-12:46 am

1 stop16h 23m

Philadelphia

Tue 10/7

9:14 pm-5:55 pm

1 stop20h 41m

$226

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 10/15

5:31 pm-7:30 am

2 stops13h 59m

Philadelphia

Wed 10/22

9:14 pm-10:47 pm

1 stop25h 33m

$229

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 10/11

7:15 am-2:25 pm

1 stop7h 10m

Philadelphia

Tue 10/14

9:14 pm-4:36 pm

2 stops19h 22m

$229

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 10/9

6:58 pm-11:52 am

1 stop16h 54m

Philadelphia

Mon 10/20

5:30 am-7:52 pm

1 stop14h 22m

$268

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 10/15

5:31 pm-9:32 am

1 stop16h 01m

Philadelphia

Sun 10/19

6:15 am-2:15 pm

1 stop8h 00m

$310

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 10/15

5:30 am-3:20 pm

2 stops9h 50m

Philadelphia

Tue 10/21

6:05 pm-10:45 pm

1 stop4h 40m

$322

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 22 results
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Best time to book a flight from Louisville to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from Louisville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Delaware
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Louisville to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Louisville to Delaware?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to Delaware.

  • How long is the flight from Louisville to Delaware?

    Departing from Louisville to Delaware will take you 6h 05m. The distance between Louisville and Delaware is about 575 mi.

  • Can I find deals for flights from Louisville to Delaware that include hotel bookings?

    Yes. In addition to deals on Louisville to Delaware flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Delaware.

  • Can I find deals for business class flights from Louisville to Delaware?

    Yes. Cheapflights offers flight deals from Louisville to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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