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Delaware

$86+ 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 4/24. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$162
(Mytrip)

One-way from

$86
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$457
Provider with most accurate pricing for Louisville Intl-Philadelphia flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Philadelphia flights.
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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. 1% potential increase in price ($9 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 28, 2025.

This Mytrip deal was found by Cheapflights users on 3/27. 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 5/13:17 pmSDF - PHL
1 stop19h 18mSpirit Airlines
Mon 5/511:53 amPHL - SDF
1 stop6h 38mSpirit Airlines
Deal found 3/27$162
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Fri 5/1612:07 pmSDF - PHL
1 stop5h 20mMultiple Airlines
Sun 5/256:00 amPHL - SDF
1 stop9h 03mMultiple Airlines
Deal found 3/27$218
This American Airlines deal was found by Cheapflights users on 3/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:10 amSDF - PHL
Nonstop1h 52mAmerican Airlines
Mon 5/57:35 pmPHL - SDF
Nonstop2h 21mAmerican Airlines
Deal found 3/27$299
This Delta deal was found by Cheapflights users on 3/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/316:59 pmSDF - PHL
1 stop5h 50mDelta
Wed 4/212:28 pmPHL - SDF
1 stop4h 52mDelta
Deal found 3/27$319
This Southwest deal was found by Cheapflights users on 3/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/36:25 amSDF - PHL
1 stop5h 00mSouthwest
Fri 6/65:55 amPHL - SDF
2 stops11h 10mSouthwest
Deal found 3/26$359
This United deal was found by Cheapflights users on 3/27. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2811:10 amSDF - PHL
2 stops12h 19mUnited Airlines
Mon 6/26:15 amPHL - SDF
1 stop4h 01mUnited Airlines
Deal found 3/27$430

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 March 28, 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

Thu 5/1

3:17 pm-10:35 am

1 stop19h 18m

Philadelphia

Mon 5/5

11:53 am-6:31 pm

1 stop6h 38m

$162

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 5/16

12:07 pm-5:27 pm

1 stop5h 20m

Philadelphia

Sun 5/25

6:00 am-3:03 pm

1 stop9h 03m

$218

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 5/1

11:10 am-1:02 pm

Nonstop1h 52m

Philadelphia

Mon 5/5

7:35 pm-9:56 pm

Nonstop2h 21m

$299

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 5/28

8:00 pm-12:57 am

1 stop4h 57m

Philadelphia

Mon 6/2

7:19 pm-12:05 am

1 stop4h 46m

$319

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 6/3

6:25 am-11:25 am

1 stop5h 00m

Philadelphia

Fri 6/6

5:55 am-5:05 pm

2 stops11h 10m

$359

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 5/28

11:10 am-11:29 pm

2 stops12h 19m

Philadelphia

Mon 6/2

6:15 am-10:16 am

1 stop4h 01m

$430

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 4/24

5:45 am-3:33 pm

1 stop9h 48m

$86

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 4/2

11:03 am-12:57 pm

Nonstop1h 54m

$150

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 4/18

7:35 am-11:39 am

1 stop4h 04m

$160

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 6/26

3:55 pm-11:35 pm

2 stops7h 40m

$165

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

Showing 1-10 of 11 results
1
2

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

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

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.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

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).

Reviews of airlines servicing Delaware

Get insights into the airlines that provide service to Delaware. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Delaware. Reviews last updated March 28, 2025.
Get a feel of what it's like to fly with Southwest, Delta and United Airlines from Louisville to Delaware by reading reviews from past customers. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Spirit Airlines
6.3
Okay
7,881 reviews
Southwest
8.1
Very good
4,273 reviews

Entertainment

7.6

Overall

8.1

Food

7.1

Comfort

8.1

Boarding

8.2

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

  • What are the cheapest airlines to fly from Louisville to Delaware one-way?

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $86. American Airlines flights start at $150 while deals on Southwest start at $165 one-way.

  • 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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