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Delaware

$117+ 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
May 5 — May 121
Mon 5/5
Mon 5/12
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 April 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$194
(Mytrip)

One-way from

$117
(Cheapflightsfares)

Popular in

October

Cheapest in

August

Average price

$480
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. 4% potential increase in price ($22 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 30, 2025.

This Mytrip deal was found by Cheapflights users on 4/28. 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 5/2911:23 amSDF - PHL
1 stop11h 13mSpirit Airlines
Wed 6/47:12 pmPHL - SDF
1 stop15h 06mSpirit Airlines
Deal found 4/28$175
This Mytrip deal was found by Cheapflights users on 4/29. 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.
Wed 6/119:34 amSDF - PHL
1 stop24h 13mMultiple Airlines
Sun 6/157:55 pmPHL - SDF
1 stop15h 28mMultiple Airlines
Deal found 4/29$249
This American Airlines deal was found by Cheapflights users on 4/28. 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 5/87:25 amSDF - PHL
Nonstop1h 57mAmerican Airlines
Fri 5/97:35 pmPHL - SDF
Nonstop2h 21mAmerican Airlines
Deal found 4/28$287
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 5/95:55 pmSDF - PHL
1 stop7h 02mDelta
Fri 5/163:57 pmPHL - SDF
1 stop4h 39mDelta
Deal found 4/28$307
This Southwest deal was found by Cheapflights users on 4/28. 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.
Sat 9/205:50 amSDF - PHL
2 stops10h 15mSouthwest
Tue 9/238:15 amPHL - SDF
2 stops10h 10mSouthwest
Deal found 4/28$337
This United Airlines deal was found by Cheapflights users on 4/29. 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 Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/266:00 amSDF - PHL
1 stop3h 39mUnited Airlines
Fri 5/306:15 amPHL - SDF
1 stop4h 01mUnited Airlines
Deal found 4/29$377

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 April 30, 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 5/29

11:23 am-10:36 pm

1 stop11h 13m

Philadelphia

Wed 6/4

7:12 pm-10:18 am

1 stop15h 06m

$175

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 6/11

9:34 am-9:47 am

1 stop24h 13m

Philadelphia

Sun 6/15

7:55 pm-11:23 am

1 stop15h 28m

$249

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 6/6

10:55 am-12:55 pm

Nonstop2h 00m

Philadelphia

Tue 6/10

7:09 pm-9:28 pm

Nonstop2h 19m

$287

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 5/9

5:55 pm-12:57 am

1 stop7h 02m

Philadelphia

Fri 5/16

3:57 pm-8:36 pm

1 stop4h 39m

$307

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sat 9/20

5:50 am-4:05 pm

2 stops10h 15m

Philadelphia

Tue 9/23

8:15 am-6:25 pm

2 stops10h 10m

$337

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 5/26

6:00 am-9:39 am

1 stop3h 39m

Philadelphia

Thu 5/29

6:15 am-10:16 am

1 stop4h 01m

$377

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 5/15

11:23 am-10:36 pm

1 stop11h 13m

$117

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Sun 5/25

10:52 am-5:34 pm

1 stop6h 42m

$132

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 5/28

6:25 am-11:25 am

1 stop5h 00m

$147

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 5/27

6:25 pm-8:16 pm

Nonstop1h 51m

$179

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 April 30, 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
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Southwest
8.0
Very good
4,295 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Delta
8.0
Very good
7,936 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
United Airlines
7.4
Good
8,696 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!
Spirit Airlines
6.3
Okay
7,961 reviews
Southwest
8.0
Very good
4,295 reviews

Overall

8.0

Crew

8.6

Food

7.1

Boarding

8.2

Comfort

8.0

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Gina,Apr 2025

LAS - DEN

Good, the crew was friendly and helpful. The pilot had great skills in keeping the plane stable through rough turbulence. Smooth landing, too! Thank you!

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 $117. Delta flights start at $132 while deals on Southwest start at $147 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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