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Delaware

$65+ 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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
Mar 4 — Mar 111
Wed 3/4
Wed 3/11
1 adult, Economy
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Cheap 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 February 2, 2026.

This Cheapflightsfares deal was found by Cheapflights users on 1/31. 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.
Tue 2/243:33 pm
SDF
-
PHL
1 stop8h 17m
Spirit Airlines
Mon 3/25:30 am
PHL
-
SDF
1 stop6h 51m
Spirit Airlines
Deal found 1/31$185
This CheapOair deal was found by Cheapflights users on 1/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/33:33 pm
SDF
-
PHL
1 stop28h 19m
Spirit Airlines
Tue 3/245:21 pm
PHL
-
SDF
1 stop17h 53m
Spirit Airlines
Deal found 1/30$213
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 2/263:33 pm
SDF
-
PHL
1 stop8h 17m
Multiple Airlines
Sat 2/287:07 pm
PHL
-
SDF
1 stop18h 19m
Multiple Airlines
Deal found 2/1$219
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
Thu 2/122:26 pm
SDF
-
PHL
1 stop9h 18m
Multiple Airlines
Sat 2/147:07 pm
PHL
-
SDF
1 stop18h 19m
Multiple Airlines
Deal found 2/2$222
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 2/263:33 pm
SDF
-
PHL
1 stop8h 17m
Multiple Airlines
Sun 3/110:59 pm
PHL
-
SDF
1 stop13h 22m
Multiple Airlines
Deal found 2/1$223
This Booking.com deal was found by Cheapflights users on 1/31. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/123:33 pm
SDF
-
PHL
1 stop8h 23m
Spirit Airlines
Sun 3/226:48 am
PHL
-
SDF
1 stop7h 45m
Spirit Airlines
Deal found 1/31$232
This CheapOair deal was found by Cheapflights users on 2/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/123:33 pm
SDF
-
PHL
1 stop8h 23m
Spirit Airlines
Sun 3/155:21 pm
PHL
-
SDF
1 stop17h 53m
Spirit Airlines
Deal found 2/1$233
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 3/52:26 pm
SDF
-
PHL
1 stop9h 18m
Multiple Airlines
Sun 3/810:38 pm
PHL
-
SDF
1 stop13h 43m
Multiple Airlines
Deal found 2/1$234
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Tue 4/213:33 pm
SDF
-
PHL
1 stop7h 37m
Multiple Airlines
Thu 4/307:00 am
PHL
-
SDF
1 stop7h 38m
Multiple Airlines
Deal found 2/1$239
This Kiwi.com deal was found by Cheapflights users on 1/30. 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.
Tue 3/33:33 pm
SDF
-
PHL
1 stop18h 20m
Multiple Airlines
Tue 3/246:08 pm
PHL
-
SDF
2 stops17h 06m
Multiple Airlines
Deal found 1/30$241
This Mytrip deal was found by Cheapflights users on 1/31. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/193:33 pm
SDF
-
PHL
1 stop8h 23m
Spirit Airlines
Tue 3/246:08 pm
PHL
-
SDF
2 stops17h 06m
Spirit Airlines
Deal found 1/31$242
This Kiwi.com deal was found by Cheapflights users on 2/1. 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.
Thu 4/168:14 pm
SDF
-
PHL
1 stop18h 18m
Multiple Airlines
Tue 4/286:15 am
PHL
-
SDF
1 stop8h 23m
Multiple Airlines
Deal found 2/1$245

Find flight deals from Louisville to Delaware

Keep the following information in mind while searching for Louisville to Delaware flight deals. Data was last updated February 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$185
(Cheapflightsfares)

One-way from

$65
(Expedia)

Popular in

December

Cheapest in

June

Average price

$502
Provider with most accurate pricing for Louisville Intl-Philadelphia flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Philadelphia flights.
Search Deals
From Louisville Intl to Delaware
Search Deals
One-way flight from Louisville Intl to Delaware
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($34 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 2, 2026.
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

Thu 3/19

3:33 pm-8:39 am

1 stop17h 06m

Philadelphia

Tue 3/24

5:21 pm-11:14 am

1 stop17h 53m

$213

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 2/26

3:33 pm-11:50 pm

1 stop8h 17m

Philadelphia

Sun 3/1

10:59 pm-12:21 pm

1 stop13h 22m

$223

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 3/12

3:33 pm-11:56 pm

1 stop8h 23m

Philadelphia

Sun 3/22

6:48 am-2:33 pm

1 stop7h 45m

$232

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 3/5

2:26 pm-11:44 pm

1 stop9h 18m

Philadelphia

Sun 3/8

10:38 pm-12:21 pm

1 stop13h 43m

$234

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 4/16

8:14 pm-2:32 pm

1 stop18h 18m

Philadelphia

Tue 4/28

6:15 am-2:38 pm

1 stop8h 23m

$245

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 2/19

2:26 pm-11:44 pm

1 stop9h 18m

Philadelphia

Sun 2/22

5:51 pm-8:40 am

1 stop14h 49m

$248

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 3/3

3:33 pm-4:26 pm

3 stops24h 53m

Philadelphia

Tue 3/24

8:18 am-11:14 am

2 stops26h 56m

$272

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 5/26

3:33 pm-8:44 am

1 stop17h 11m

Philadelphia

Fri 5/29

6:15 am-8:20 pm

1 stop14h 05m

$290

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 2/26

3:33 pm-11:50 pm

1 stop8h 17m

$65

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 3/31

12:42 pm-11:56 pm

1 stop11h 14m

$92

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/1

Showing 1-10 of 18 results
1
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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 17h 06m. 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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