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Delaware

$68+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — ILG
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$165
(Mytrip)

One-way from

$68
(Mytrip)

Popular in

June

Cheapest in

August

Average price

$399
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. 3% potential increase in price ($16 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in February 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 February 20, 2025.

This Mytrip deal was found by Cheapflights users on 2/19. 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 3/76:22 pmSDF - PHL
1 stop14h 36mMultiple Airlines
Mon 3/1010:03 amPHL - SDF
1 stop8h 18mMultiple Airlines
Deal found 2/19$165
This CheapOair deal was found by Cheapflights users on 2/19. 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.
Wed 3/195:33 pmSDF - PHL
1 stop15h 13mSpirit Airlines
Wed 3/2610:57 amPHL - SDF
1 stop5h 41mSpirit Airlines
Deal found 2/19$174
This Southwest deal was found by Cheapflights users on 2/19. 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.
Wed 3/198:55 amSDF - PHL
2 stops13h 15mSouthwest
Mon 3/311:35 pmPHL - SDF
1 stop8h 45mSouthwest
Deal found 2/19$338
This American Airlines deal was found by Cheapflights users on 2/19. 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 4/245:45 amSDF - PHL
1 stop9h 10mAmerican Airlines
Sat 4/267:15 pmPHL - SDF
Nonstop2h 24mAmerican Airlines
Deal found 2/19$456
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 5/111:00 amSDF - PHL
1 stop6h 40mUnited Airlines
Sun 5/46:30 amPHL - SDF
1 stop6h 35mUnited Airlines
Deal found 2/19$489

Find flights from Louisville to Delaware within your budget

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 20, 2025.

Fly from

Louisville

Fly to

Delaware

Route

Depart

Return

Price

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 3/7

6:22 pm-8:58 am

1 stop14h 36m

Philadelphia

Mon 3/10

10:03 am-6:21 pm

1 stop8h 18m

$165

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 3/19

5:33 pm-8:46 am

1 stop15h 13m

Philadelphia

Wed 3/26

10:57 am-4:38 pm

1 stop5h 41m

$174

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 3/19

8:55 am-10:10 pm

2 stops13h 15m

Philadelphia

Mon 3/31

1:35 pm-10:20 pm

1 stop8h 45m

$338

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 3/19

10:47 am-7:22 pm

1 stop8h 35m

Philadelphia

Mon 3/31

8:20 am-10:38 am

Nonstop2h 18m

$436

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 5/1

11:00 am-5:40 pm

1 stop6h 40m

Philadelphia

Sun 5/4

6:30 am-1:05 pm

1 stop6h 35m

$489

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Mon 3/10

7:16 pm-8:58 am

1 stop13h 42m

$68

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Fri 2/28

11:03 am-7:25 pm

2 stops32h 22m

$155

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Tue 4/22

7:05 am-2:09 pm

1 stop7h 04m

$164

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Wed 3/19

8:55 am-10:10 pm

2 stops13h 15m

$174

LouisvillePhiladelphia

SDF - PHL

SDFPHL

Louisville Intl

Thu 4/17

6:00 am-9:50 am

1 stop3h 50m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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.

Travel insights for flights from Louisville to Delaware

Get recent, data-driven insights about flights from Louisville to Delaware including ideal travel times, pricing trends, and more.

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 February 20, 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
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Southwest
8.1
Very good
4,411 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Delta
8.0
Very good
8,219 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

United Airlines
7.4
Good
8,765 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Spirit Airlines
6.3
Okay
8,013 reviews
Southwest
8.1
Very good
4,411 reviews

Crew

8.7

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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 $68. Delta flights start at $164 while deals on Southwest start at $174 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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