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Delaware

$90+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
ago. 4 — ago. 111
lun. 8/4
lun. 8/11
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 julio 30, 2025.

Round-trip from

$180
(CheapOair)

One-way from

$90
(CheapOair)

Popular in

September

Cheapest in

June

Average price

$477
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. 8% potential increase in price ($42 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($12 potential savings vs. average RT price).
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Average for round-trip flights in July 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 julio 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/23:10 pmSDF - PHL
1 stop6h 29mSpirit Airlines
sáb. 10/48:30 pmPHL - SDF
1 stop12h 49mSpirit Airlines
Deal found 7/28$180
This Mytrip deal was found by Cheapflights users on 7/29. 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.
vie. 9/129:47 amSDF - PHL
1 stop15h 10mMultiple Airlines
dom. 9/149:50 pmPHL - SDF
1 stop11h 29mMultiple Airlines
Deal found 7/29$199

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 julio 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

jue. 10/2

3:10 pm-9:39 pm

1 stop6h 29m

Philadelphia

sáb. 10/4

8:30 pm-9:19 am

1 stop12h 49m

$180

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

vie. 9/12

9:47 am-12:57 am

1 stop15h 10m

Philadelphia

dom. 9/14

9:50 pm-9:19 am

1 stop11h 29m

$199

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mié. 8/27

1:15 pm-5:40 pm

1 stop4h 25m

Philadelphia

mié. 9/3

6:30 am-12:25 pm

1 stop5h 55m

$236

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

jue. 8/21

2:46 pm-8:49 pm

1 stop6h 03m

$90

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mar. 10/28

5:30 am-3:20 pm

2 stops9h 50m

$95

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

vie. 8/22

10:24 am-8:54 pm

1 stop10h 30m

$132

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mar. 9/30

7:00 am-4:27 pm

1 stop9h 27m

$202

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

mié. 9/24

7:20 am-12:20 am

1 stop17h 00m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

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.

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 julio 30, 2025.
Read through reviews of airlines operating flights from Louisville to Delaware, such as Southwest, United Airlines, and American Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
United Airlines
7.4
Good
8,896 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.
Spirit Airlines
6.3
Okay
8,048 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Boarding

8.1

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Reviews

1 / 20
8.0
Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

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 $90. Southwest flights start at $95 while deals on American Airlines start at $202 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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