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$103+ Cheap flights from Baltimore to Louisville (BWI - SDF)

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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SDF
Apr 23 — Apr 301
Thu 4/23
Thu 4/30
1 adult, Economy
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Find cheap flights from Baltimore to Louisville with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Baltimore/Washington to Louisville Intl are usually found in August or May, booked 27 days in advance, depart on a Saturday or Tuesday and return on a Saturday

Cheap flight deals from Baltimore to Louisville

Cheapest flights from Baltimore to Louisville
Explore the most affordable flight options available from Baltimore to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.

This Southwest deal was found by Cheapflights users on 3/20. 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.
Tue 4/219:05 pm
BWI
-
SDF
Nonstop1h 50m
Southwest
Wed 4/226:20 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Deal found 3/20$207
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:55 pm
BWI
-
SDF
1 stop5h 04m
United Airlines
Wed 4/229:07 am
SDF
-
BWI
1 stop4h 55m
United Airlines
Deal found 3/23$212
This Southwest deal was found by Cheapflights users on 3/20. 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 4/209:55 pm
BWI
-
SDF
Nonstop1h 50m
Southwest
Wed 4/223:45 pm
SDF
-
BWI
Nonstop1h 40m
Southwest
Deal found 3/20$221
This Southwest deal was found by Cheapflights users on 3/19. 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.
Tue 5/196:30 am
BWI
-
SDF
2 stops11h 30m
Southwest
Tue 5/266:20 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Deal found 3/19$222
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 4/149:05 pm
BWI
-
SDF
Nonstop1h 50m
Southwest
Wed 4/223:45 pm
SDF
-
BWI
Nonstop1h 40m
Southwest
Deal found 3/23$223
This Delta deal was found by Cheapflights users on 3/20. 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.
Sun 5/246:00 am
BWI
-
SDF
1 stop5h 53m
Delta
Sat 5/301:00 pm
SDF
-
BWI
1 stop5h 51m
Delta
Deal found 3/20$227
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:02 pm
BWI
-
SDF
1 stop23h 02m
Multiple Airlines
Mon 5/187:48 pm
SDF
-
BWI
1 stop13h 27m
Multiple Airlines
Deal found 3/23$230
This Southwest deal was found by Cheapflights users on 3/20. 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 4/169:55 pm
BWI
-
SDF
Nonstop1h 50m
Southwest
Mon 4/204:45 pm
SDF
-
BWI
Nonstop1h 45m
Southwest
Deal found 3/20$235

Find flight deals from Baltimore to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) to Louisville (SDF). 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 March 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$207
(Southwest)

One-way from

$103
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$389
Provider with most accurate pricing for Baltimore/Washington-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Louisville Intl flights.
Search Deals
From Baltimore/Washington to Louisville Intl
Search Deals
One-way flight from Baltimore/Washington to Louisville Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($22 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Louisville 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 March 24, 2026.
Use the filters below to find and compare flights from Baltimore to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 5/14

9:55 pm-11:45 pm

Nonstop1h 50m

Louisville Intl

Sun 5/17

5:40 pm-1:15 am

1 stop7h 35m

$302

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 5/15

3:05 pm-4:50 pm

Nonstop1h 45m

Louisville Intl

Mon 5/18

3:40 pm-12:25 am

1 stop8h 45m

$312

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 5/12

7:05 pm-11:56 pm

1 stop4h 51m

Louisville Intl

Wed 5/13

9:10 am-2:13 pm

1 stop5h 03m

$322

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 6/17

8:17 am-3:31 pm

1 stop7h 14m

Louisville Intl

Tue 6/23

6:00 am-10:47 am

1 stop4h 47m

$329

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 4/4

2:30 pm-10:40 pm

2 stops8h 10m

Louisville Intl

Thu 4/30

6:25 pm-12:10 am

1 stop5h 45m

$339

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sun 6/14

7:40 pm-11:10 pm

1 stop3h 30m

Louisville Intl

Wed 6/17

4:15 pm-5:55 pm

Nonstop1h 40m

$345

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 6/19

6:24 pm-12:32 am

1 stop6h 08m

Louisville Intl

Tue 6/23

6:00 am-1:03 pm

1 stop7h 03m

$349
Quickest round-trip

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 5/15

3:05 pm-4:50 pm

Nonstop1h 45m

Louisville Intl

Sun 5/17

10:25 am-12:00 pm

Nonstop1h 35m

$352

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 4/8

8:55 am-2:45 pm

2 stops5h 50m

Louisville Intl

Mon 4/13

8:10 pm-12:05 am

1 stop3h 55m

$353

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 5/22

7:41 pm-12:25 am

1 stop4h 44m

Louisville Intl

Mon 5/25

7:59 pm-12:57 am

1 stop4h 58m

$369

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Baltimore to Louisville

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 Baltimore to Louisville in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 Baltimore-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Louisville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Louisville 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 Baltimore-Louisville 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 Baltimore to Louisville

Have a flexible travel schedule? Discover the best time to fly to Louisville from Baltimore 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 Baltimore to Louisville

How far ahead should I book a flight from Baltimore to Louisville?

Use this chart to determine the optimal time to book a round-trip flight from Baltimore to Louisville. Price data was last updated on March 13, 2026.

The best time to book flights from Baltimore to Louisville is 27 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, May is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $131). Flying from Baltimore to Louisville in November is currently the most expensive (average of $189). 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.

What is the cheapest time of day to fly from BWI to SDF?

Find hourly flight availability from Baltimore to Louisville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 24, 2026.

When flying from Baltimore to Louisville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 25% versus a flight at noon.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. 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 Louisville. Reviews last updated March 24, 2026.
See what other customers who have flown with Southwest,United Airlines, andAmerican Airlines from Baltimore to Louisville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,328 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,467 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,492 reviews
Southwest
8.0
Very good
4,328 reviews

Comfort

8.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

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

  • What airports do I use to fly from Baltimore to Louisville?

    If you book a flight from Baltimore to Louisville, you will be flying from Baltimore/Washington to Louisville Intl. Flights to Louisville Intl (SDF) from Baltimore/Washington (BWI) take 1h 40m for a nonstop flight. There are 2 flights from Baltimore/Washington to Louisville per day from 3 airlines.

  • How popular is this Baltimore to Louisville flight route?

    The Baltimore/Washington to Louisville Intl flight path was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Baltimore to Louisville?

    Departing from Baltimore to Louisville will take you 1h 50m. Baltimore and Louisville are separated by a distance of 493 mi. This flight may include one or multiple stops.

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

    Currently priced at $189, United Airlines will fly you from Baltimore to Louisville and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Southwest and American Airlines - these airlines can fly you to your destination from $195 and $231, respectively. Users have found that United Airlines is 44% cheaper than the other options available to this destination.

  • What are the cheapest flights from Baltimore to Louisville?

    The cheapest flight price from Baltimore to Louisville is $118. On average you can expect to pay $332. The most popular route, (Baltimore/Washington - Louisville Intl), can usually be booked for $212.

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

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

  • How can I find direct flights from Baltimore to Louisville?

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

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

    Yes. Cheapflights offers flight deals from Baltimore to Louisville 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 Baltimore to Louisville?

    Currently, May is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $131). Flying from Baltimore to Louisville in November is currently the most expensive (average of $189). 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 Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Jeffersonville
Elizabethtown
Corydon
Bardstown

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from Baltimore to Louisville

Discover the top 3 airlines that operate flights from Baltimore to Louisville. 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 March 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$189Average$264FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$195Average$334FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$231Average$522FlexibilityNo cancel feeOn-time71%

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