How long is the flight from Louisville to Delaware?

Departing from Louisville to Delaware will take you 2h 05m. The distance between Louisville and Delaware is about 575 mi. Both multi-stop and nonstop flights can be found to your destination and back.

In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

What is the cheapest time of day to fly from SDF to DE?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Delaware as you normally would.

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.

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.

$70+ Flights from Louisville to Delaware

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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 December 18, 2025.

Mon 12/295:05 amSDF - PHL

1 stop28h 02mMultiple Airlines

Mon 1/56:05 pmPHL - SDF

1 stop28h 44mMultiple Airlines

Deal found 12/16

$335

Wed 12/243:44 pmSDF - PHL

1 stop20h 57mAmerican Airlines

Thu 12/254:00 pmPHL - SDF

Nonstop2h 19mAmerican Airlines

Deal found 12/16

$363

Wed 12/245:05 amSDF - PHL

1 stop7h 20mMultiple Airlines

Mon 12/297:18 pmPHL - SDF

1 stop18h 57mMultiple Airlines

Deal found 12/17

$388

Sun 12/215:05 amSDF - PHL

1 stop18h 21mMultiple Airlines

Tue 12/306:00 amPHL - SDF

1 stop8h 15mMultiple Airlines

Deal found 12/16

$398

Sun 12/215:05 amSDF - PHL

1 stop18h 21mMultiple Airlines

Mon 12/297:18 pmPHL - SDF

1 stop18h 57mMultiple Airlines

Deal found 12/16

$427

Tue 12/237:44 pmSDF - PHL

1 stop25h 04mMultiple Airlines

Sat 12/277:18 pmPHL - SDF

1 stop18h 57mMultiple Airlines

Deal found 12/17

$428

Sun 12/215:05 amSDF - PHL

1 stop14h 25mMultiple Airlines

Sat 12/277:18 pmPHL - SDF

1 stop18h 57mMultiple Airlines

Deal found 12/16

$450

Best flights from Louisville to Delaware
Discover carefully curated flight deals from Louisville to Delaware that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

Thu 1/153:36 pmSDF - PHL

2 stops20h 22mMultiple Airlines

Thu 1/226:00 amPHL - SDF

1 stop8h 41mMultiple Airlines

Deal found 12/16

$189

Fri 1/91:55 pmSDF - PHL

1 stop8h 08mSpirit Airlines

Mon 1/125:30 amPHL - SDF

1 stop7h 30mSpirit Airlines

Deal found 12/17

$200

Thu 1/87:00 amSDF - PHL

Nonstop2h 05mAmerican Airlines

Thu 1/812:23 pmPHL - SDF

1 stop10h 56mAmerican Airlines

Deal found 12/16

$211

Wed 1/216:45 amSDF - PHL

1 stop6h 10mSouthwest

Wed 1/215:45 pmPHL - SDF

1 stop4h 25mSouthwest

Deal found 12/16

$333

Fri 1/301:55 pmSDF - PHL

1 stop8h 08mSpirit Airlines

Sat 1/316:11 pmPHL - SDF

1 stop20h 30mSpirit Airlines

Deal found 12/17

$224

Sat 1/174:42 pmSDF - PHL

2 stops19h 10mAmerican Airlines

Sun 1/182:05 pmPHL - SDF

Nonstop2h 25mAmerican Airlines

Deal found 12/16

$254

Tue 2/33:36 pmSDF - PHL

1 stop8h 14mMultiple Airlines

Sun 2/85:30 amPHL - SDF

3 stops28h 37mMultiple Airlines

Deal found 12/17

$276

Mon 3/239:09 pmSDF - PHL

1 stop11h 30mMultiple Airlines

Wed 3/256:12 pmPHL - SDF

2 stops19h 14mMultiple Airlines

Deal found 12/17

$283

Fri 1/96:54 pmSDF - PHL

3 stops24h 54mMultiple Airlines

Mon 1/125:30 amPHL - SDF

3 stops33h 11mMultiple Airlines

Deal found 12/17

$330

Last-minute flights from Louisville to Delaware
Discover last-minute flight deals from Louisville to Delaware. Data last updated December 18, 2025 and is based on user searches.

Fri 1/96:54 pmSDF - PHL

1 stop13h 53mMultiple Airlines

Mon 1/126:11 pmPHL - SDF

1 stop20h 30mMultiple Airlines

Deal found 12/17

$161

Sun 1/113:36 pmSDF - PHL

1 stop17h 11mSpirit Airlines

Wed 1/141:40 pmPHL - SDF

1 stop25h 01mSpirit Airlines

Deal found 12/16

$168

Sun 1/113:36 pmSDF - PHL

1 stop17h 11mMultiple Airlines

Wed 1/144:08 pmPHL - SDF

2 stops22h 33mMultiple Airlines

Deal found 12/16

$198

Wed 1/141:55 pmSDF - PHL

1 stop20h 42mMultiple Airlines

Thu 1/158:43 pmPHL - SDF

1 stop16h 17mMultiple Airlines

Deal found 12/16

$184

Thu 1/153:36 pmSDF - PHL

1 stop8h 14mSpirit Airlines

Thu 1/226:00 amPHL - SDF

1 stop8h 41mSpirit Airlines

Deal found 12/16

$164

Thu 1/153:36 pmSDF - PHL

2 stops20h 22mMultiple Airlines

Thu 1/226:00 amPHL - SDF

1 stop8h 41mMultiple Airlines

Deal found 12/16

$189

Tue 1/203:36 pmSDF - PHL

1 stop7h 38mMultiple Airlines

Wed 1/211:40 pmPHL - SDF

1 stop25h 01mMultiple Airlines

Deal found 12/17

$172

Wed 1/217:00 amSDF - PHL

Nonstop2h 05mAmerican Airlines

Wed 1/2110:40 amPHL - SDF

1 stop12h 39mAmerican Airlines

Deal found 12/16

$192

Thu 1/293:36 pmSDF - PHL

1 stop8h 14mSpirit Airlines

Sun 2/18:20 amPHL - SDF

1 stop6h 21mSpirit Airlines

Deal found 12/16

$176

One-way flights from Louisville to Delaware
Search for one-way flight options from Louisville to Delaware. Find affordable one-way fares based on user searches. Data last updated December 18, 2025.

Thu 1/153:36 pmSDF - PHL

1 stop8h 14mSpirit Airlines

Deal found 12/15

$70

Wed 1/141:55 pmSDF - PHL

1 stop8h 08mSpirit Airlines

Deal found 12/17

$71

Wed 1/141:55 pmSDF - PHL

1 stop22h 44mMultiple Airlines

Deal found 12/18

$80

Mon 1/126:54 pmSDF - PHL

1 stop16h 20mMultiple Airlines

Deal found 12/15

$85

Tue 1/133:36 pmSDF - PHL

1 stop8h 14mSpirit Airlines

Deal found 12/15

$87

Mon 2/239:30 amSDF - PHL

1 stop23h 14mMultiple Airlines

Deal found 12/17

$90

Tue 2/173:33 pmSDF - PHL

1 stop18h 20mMultiple Airlines

Deal found 12/16

$91

Tue 1/203:36 pmSDF - PHL

2 stops19h 01mMultiple Airlines

Deal found 12/18

$94

Mon 2/169:30 amSDF - PHL

1 stop24h 23mMultiple Airlines

Deal found 12/18

$95

Find flight deals from Louisville to Delaware

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$161 (Kiwi.com)
One-way from	$70 (Priceline)
Popular in	December
Cheapest in	June
Average price	$581

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. 5% potential increase in price ($28 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 December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 1/15

3:36 pm-11:58 am

2 stops20h 22m

Philadelphia

Thu 1/22

6:00 am-2:41 pm

1 stop8h 41m

$189

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 1/9

1:55 pm-10:03 pm

1 stop8h 08m

Philadelphia

Mon 1/12

5:30 am-1:00 pm

1 stop7h 30m

$200

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 1/8

7:00 am-9:05 am

Nonstop2h 05m

Philadelphia

Thu 1/8

12:23 pm-11:19 pm

1 stop10h 56m

$211

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 1/30

1:55 pm-10:03 pm

1 stop8h 08m

Philadelphia

Sat 1/31

6:11 pm-2:41 pm

1 stop20h 30m

$224

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 1/17

4:42 pm-11:52 am

2 stops19h 10m

Philadelphia

Sun 1/18

2:05 pm-4:30 pm

Nonstop2h 25m

$254

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 2/3

3:36 pm-11:50 pm

1 stop8h 14m

Philadelphia

Sun 2/8

5:30 am-10:07 am

3 stops28h 37m

$276

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 3/23

9:09 pm-8:39 am

1 stop11h 30m

Philadelphia

Wed 3/25

6:12 pm-1:26 pm

2 stops19h 14m

$283

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 1/9

6:54 pm-7:48 pm

3 stops24h 54m

Philadelphia

Mon 1/12

5:30 am-2:41 pm

3 stops33h 11m

$330

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 1/21

6:45 am-12:55 pm

1 stop6h 10m

Philadelphia

Wed 1/21

5:45 pm-10:10 pm

1 stop4h 25m

$333

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 1/14

1:55 pm-10:03 pm

1 stop8h 08m

$71

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 16 results

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

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 2h 05m. The distance between Louisville and Delaware is about 575 mi. Both multi-stop and nonstop flights can be found to your destination and back.
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

Browse thousands of different options on Cheapflights for your next trip

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$70+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Delaware with Cheapflights

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3. Compare prices and book

Cheap flight deals from Louisville to Delaware

Cheapest flights from Louisville to DelawareExplore 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 December 18, 2025.

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 December 18, 2025.

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 December 18, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Delaware that are best for you.

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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Delaware

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?

How long is the flight from Louisville to Delaware?

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

How can I find direct flights from Louisville to Delaware?

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

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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 December 18, 2025.