HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Salvador

$406+ Cheap flights from Louisville (SDF) to San Salvador (SAL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — SAL
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Louisville to San Salvador with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Louisville to San Salvador

Cheapest flights from Louisville to San Salvador
Explore the most affordable flight options available from Louisville to San Salvador. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:48 pm
SDF
-
SAL
1 stop20h 04m
Multiple Airlines
Sat 5/27:35 am
SAL
-
SDF
2 stops27h 51m
Multiple Airlines
Deal found 1/25$434
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/258:31 pm
SDF
-
SAL
2 stops19h 21m
Multiple Airlines
Thu 4/302:57 pm
SAL
-
SDF
1 stop26h 01m
Multiple Airlines
Deal found 1/25$441
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:48 pm
SDF
-
SAL
1 stop20h 04m
Multiple Airlines
Fri 5/110:05 pm
SAL
-
SDF
2 stops19h 31m
Multiple Airlines
Deal found 1/25$443
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/26:00 am
SDF
-
SAL
1 stop10h 24m
United Airlines
Thu 2/56:55 am
SAL
-
SDF
1 stop14h 04m
United Airlines
Deal found 1/25$445
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:33 pm
SDF
-
SAL
2 stops26h 27m
Multiple Airlines
Thu 4/302:57 pm
SAL
-
SDF
1 stop26h 01m
Multiple Airlines
Deal found 1/25$453
This Delta deal was found by Cheapflights users on 1/25. 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.
Thu 4/236:00 am
SDF
-
SAL
1 stop8h 39m
Delta
Sat 5/22:04 pm
SAL
-
SDF
1 stop16h 48m
Delta
Deal found 1/25$458
This Delta deal was found by Cheapflights users on 1/25. 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 4/248:10 am
SDF
-
SAL
1 stop6h 29m
Delta
Sat 5/22:04 pm
SAL
-
SDF
1 stop16h 48m
Delta
Deal found 1/25$475
This Kiwi.com deal was found by Cheapflights users on 1/25. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:48 pm
SDF
-
SAL
2 stops22h 12m
Multiple Airlines
Thu 4/302:57 pm
SAL
-
SDF
1 stop26h 01m
Multiple Airlines
Deal found 1/25$479
This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/265:35 am
SDF
-
SAL
2 stops16h 44m
United Airlines
Wed 3/46:55 am
SAL
-
SDF
1 stop13h 51m
United Airlines
Deal found 1/24$487

Find flight deals from Louisville to San Salvador

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to San Salvador (SAL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$441
(Kiwi.com)

Popular in

December

Cheapest in

September

Average price

$509
Provider with most accurate pricing for Louisville Intl-San Salvador El Salvador Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-San Salvador El Salvador Intl flights.
Search Deals
From Louisville Intl to San Salvador El Salvador Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($119 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($47 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to San Salvador 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 January 26, 2026.
Use the filters below to find and compare flights from Louisville to San Salvador that are best for you.

Fly from

Louisville

Fly to

San Salvador

Route

Depart

Return

Price

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Thu 2/19

2:26 pm-7:40 pm

2 stops30h 14m

San Salvador El Salvador Intl

Thu 2/26

4:02 pm-8:40 am

1 stop15h 38m

$406

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Mon 4/27

7:48 pm-1:52 pm

1 stop20h 04m

San Salvador El Salvador Intl

Sat 5/2

7:35 am-1:26 pm

2 stops27h 51m

$434

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Sat 4/25

8:31 pm-1:52 pm

2 stops19h 21m

San Salvador El Salvador Intl

Thu 4/30

2:57 pm-6:58 pm

1 stop26h 01m

$441

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Mon 4/27

7:48 pm-1:52 pm

1 stop20h 04m

San Salvador El Salvador Intl

Fri 5/1

10:05 pm-7:36 pm

2 stops19h 31m

$443

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Thu 2/19

5:35 am-9:19 pm

2 stops16h 44m

San Salvador El Salvador Intl

Thu 2/26

2:50 pm-10:13 pm

2 stops30h 23m

$449

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Thu 4/23

6:00 am-12:39 pm

1 stop8h 39m

San Salvador El Salvador Intl

Sat 5/2

2:04 pm-8:52 am

1 stop16h 48m

$458

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Mon 4/27

6:00 am-12:39 pm

1 stop8h 39m

San Salvador El Salvador Intl

Sat 5/2

2:04 pm-8:52 am

1 stop16h 48m

$458

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Sat 4/25

8:10 am-12:39 pm

1 stop6h 29m

San Salvador El Salvador Intl

Sat 5/2

2:04 pm-8:52 am

1 stop16h 48m

$475

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Sun 4/26

7:05 am-12:39 pm

1 stop7h 34m

San Salvador El Salvador Intl

Sat 5/2

2:04 pm-8:52 am

1 stop16h 48m

$475

LouisvilleSan Salvador

SDF - SAL

SDFSAL

Louisville Intl

Sat 5/9

10:25 am-8:49 pm

2 stops12h 24m

San Salvador El Salvador Intl

Sun 5/24

6:00 am-9:30 pm

1 stop13h 30m

$479

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Compare providers for flights from Louisville to San Salvador

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to San Salvador in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-San Salvador flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-San Salvador flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-San Salvador flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-San Salvador flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-San Salvador flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to San Salvador

Have a flexible travel schedule? Discover the best time to fly to San Salvador 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 San Salvador

What is the cheapest month to book a flight from Louisville to San Salvador?

Currently, September is the cheapest month in which you can book a flight from Louisville to San Salvador (average of $293). Flying from Louisville to San Salvador in December is currently the most expensive (average of $644). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Louisville to San Salvador?

Reviews of airlines servicing San Salvador

Get insights into the airlines that provide service to San Salvador. 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 San Salvador. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from Louisville to San Salvador. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,111 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,111 reviews
Delta
7.9
Good
8,111 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,199 reviews
Delta
7.9
Good
8,111 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,189 reviews
Delta
7.9
Good
8,111 reviews

Boarding

8.1

Overall

7.9

Entertainment

7.8

Food

7.2

Comfort

7.9

Crew

8.5

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Louisville to San Salvador. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Louisville to San Salvador round-trip?

    According to our current data, Delta ($293), American Airlines ($399), and United Airlines ($403) offers the cheapest pricing from Louisville to San Salvador. Delta is currently priced 48% below the average price you’ll pay for this route.

  • Can I find deals for flights from Louisville to San Salvador that include hotel bookings?

    Yes. In addition to deals on Louisville to San Salvador flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Louisville to San Salvador?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to San Salvador.

  • Can I find deals for business class flights from Louisville to San Salvador?

    Yes. Cheapflights offers flight deals from Louisville to San Salvador by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Louisville to San Salvador?

    Currently, September is the cheapest month in which you can book a flight from Louisville to San Salvador (average of $293). Flying from Louisville to San Salvador in December is currently the most expensive (average of $644). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Salvador?

Book flights to San Salvador if you plan to visit one of these locations
Acajutla
Sonsonate
El Cuco
La Libertad

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Louisville to San Salvador

See prices for flight routes from nearby airports that may be better suited for you.
Nashville to San Salvador flights
Cincinnati to San Salvador flights
Knoxville to San Salvador flights
Lexington to San Salvador flights
Blountville to San Salvador flights

Top 3 airlines flying from Louisville to San Salvador

Discover the top 3 airlines that operate flights from Louisville to San Salvador. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$293Average$581FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$399Average$592FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$403Average$540FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.