Find cheap Southwest flights to Louisville
RDU — SDF
Aug 26 — Sep 21
Round-trip
1 adult, Economy
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Cheapest Southwest flights from USA to LouisvilleExplore the most affordable Southwest flight options available from USA to Louisville. Find the lowest fares with prices last updated on July 27, 2026.
Explore the most affordable Southwest flight options available from USA to Louisville. Find the lowest fares with prices last updated on July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/1312:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Tue 8/1810:50 am
SDF
- HOU
1 stop3h 50m
Southwest
Deal found 7/23![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/277:25 am
LGA
- SDF
1 stop5h 40m
Southwest
Mon 8/311:45 pm
SDF
- LGA
1 stop8h 10m
Southwest
Deal found 7/23![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/209:40 am
LGA
- SDF
1 stop8h 50m
Southwest
Fri 8/212:15 pm
SDF
- LGA
1 stop6h 05m
Southwest
Deal found 7/23![Southwest logo]()
$264
Best Southwest flights from USA to LouisvilleDiscover carefully curated Southwest flight deals from USA to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
Discover carefully curated Southwest flight deals from USA to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/1312:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Tue 8/1810:50 am
SDF
- HOU
1 stop3h 50m
Southwest
Deal found 7/23![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/277:25 am
LGA
- SDF
1 stop5h 40m
Southwest
Mon 8/311:45 pm
SDF
- LGA
1 stop8h 10m
Southwest
Deal found 7/23![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 9/37:55 am
HOU
- SDF
1 stop4h 10m
Southwest
Mon 9/71:45 pm
SDF
- HOU
Nonstop2h 20m
Southwest
Deal found 7/23![Southwest logo]()
$262
Direct Southwest flights from USA to LouisvilleExplore non-stop Southwest flight options from USA to Louisville based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
Explore non-stop Southwest flight options from USA to Louisville based on user searches, and compare prices and availability for your desired travel dates. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 9/312:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Thu 9/171:45 pm
SDF
- HOU
Nonstop2h 20m
Southwest
Deal found 7/22![Southwest logo]()
$233
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 9/312:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Mon 9/71:45 pm
SDF
- HOU
Nonstop2h 20m
Southwest
Deal found 7/23![Southwest logo]()
$252
This Southwest deal was found by Cheapflights users on 7/24. 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.
Mon 8/1712:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Fri 8/211:45 pm
SDF
- HOU
Nonstop2h 20m
Southwest
Deal found 7/24![Southwest logo]()
$276
Last-minute Southwest flights from USA to LouisvilleDiscover last-minute Southwest flight deals from USA to Louisville. Data last updated July 27, 2026 and is based on user searches.
Discover last-minute Southwest flight deals from USA to Louisville. Data last updated July 27, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/1312:25 pm
HOU
- SDF
Nonstop2h 15m
Southwest
Tue 8/1810:50 am
SDF
- HOU
1 stop3h 50m
Southwest
Deal found 7/23![Southwest logo]()
$239
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/277:25 am
LGA
- SDF
1 stop5h 40m
Southwest
Mon 8/311:45 pm
SDF
- LGA
1 stop8h 10m
Southwest
Deal found 7/23![Southwest logo]()
$259
This Southwest deal was found by Cheapflights users on 7/23. 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.
Thu 8/209:40 am
LGA
- SDF
1 stop8h 50m
Southwest
Fri 8/212:15 pm
SDF
- LGA
1 stop6h 05m
Southwest
Deal found 7/23![Southwest logo]()
$264
One-way Southwest flights to LouisvilleSearch for one-way Southwest flight options to Louisville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
Search for one-way Southwest flight options to Louisville. Find affordable one-way fares based on user searches. Data last updated July 27, 2026.
This Southwest deal was found by Cheapflights users on 7/23. 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 8/2211:00 am
HOU
- SDF
Nonstop2h 15m
Southwest
Deal found 7/23![Southwest logo]()
$117
This Southwest deal was found by Cheapflights users on 7/23. 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 9/51:35 pm
HOU
- SDF
1 stop6h 50m
Southwest
Deal found 7/23![Southwest logo]()
$127
This Southwest deal was found by Cheapflights users on 7/22. 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 8/196:00 am
LGA
- SDF
1 stop5h 20m
Southwest
Deal found 7/22![Southwest logo]()
$130
Flights to Louisville with Southwest at a glance
Find detailed information about Southwest flights from USA to Louisville. Explore the options provided by Southwest to plan your journey from USA to Louisville. Data last updated July 27, 2026.
Cheapflights Insights
Find cheap Southwest flights to Louisville
US0-SDF
HOU-SDF
LGA-SDF
How long is the flight to Louisville with Southwest?
On average, Southwest flights from the United States to Louisville take 2 hours 9 minutes. Flights to Louisville from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Southwest weekly flight availability to Louisville
The most flights to Louisville operated by Southwest are scheduled on a Saturday (19 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).
When is the best time to book a flight to Louisville with Southwest?
The best time to book a flight to Louisville with Southwest is 62 days before departure. On average, fares are higher if you book 1 day before departure.
When is the cheapest time to fly to Louisville with Southwest?
Users looking for the cheapest Southwest fares to Louisville should consider flying on Sunday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Monday evenings, when prices are usually at their highest.
FAQs about flights to Louisville with Southwest
Reviews of Southwest
See what Cheapflights users have to say about their Southwest experience.
Overview
Reviews
Southwest
4,229 reviews
Overview
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Recent reviews
10.0
|Jul 2026Good
8.0
|Jun 2026One delay in a 2 layover flight=a good trip. The crew was great.
6.0
|Jun 2026The seats were super cramped and couldn’t move without hitting other passengers
8.0
|Jun 2026The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
10.0
|Jun 2026On time and no problems
1 out of 1410
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