HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$68+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SDF
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Louisville 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.

Cheapflights Tip: The best prices from Baltimore/Washington to Louisville Intl are usually found in August or March, booked 53 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 September 17, 2025.

Round-trip from

$159
(American Airlines)

One-way from

$68
(United Airlines)

Popular in

December

Cheapest in

August

Average price

$309
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. 7% potential increase in price ($24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($4 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find 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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/15. 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.
Sat 11/110:45 amBWI - SDF
1 stop4h 20mAmerican Airlines
Tue 11/49:22 amSDF - BWI
1 stop4h 29mAmerican Airlines
Deal found 9/15$159
This Delta deal was found by Cheapflights users on 9/15. 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 10/247:45 pmBWI - SDF
1 stop4h 16mDelta
Mon 10/278:15 pmSDF - BWI
1 stop4h 26mDelta
Deal found 9/15$177
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/254:20 pmBWI - SDF
1 stop6h 27mSpirit Airlines
Wed 10/295:31 pmSDF - BWI
1 stop6h 01mSpirit Airlines
Deal found 9/15$185
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/319:41 pmBWI - SDF
1 stop25h 06mSpirit Airlines
Fri 11/76:00 amSDF - BWI
1 stop13h 30mSpirit Airlines
Deal found 9/16$194
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 11/173:31 pmBWI - SDF
1 stop8h 14mSpirit Airlines
Wed 11/196:00 amSDF - BWI
1 stop14h 32mSpirit Airlines
Deal found 9/16$201
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/254:20 pmBWI - SDF
1 stop6h 27mSpirit Airlines
Sun 10/266:58 pmSDF - BWI
1 stop16h 56mSpirit Airlines
Deal found 9/15$202
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/88:00 amBWI - SDF
1 stop9h 55mSpirit Airlines
Fri 10/1011:47 amSDF - BWI
1 stop21h 47mSpirit Airlines
Deal found 9/16$204
This Kiwi.com deal was found by Cheapflights users on 9/16. 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 10/238:13 amBWI - SDF
1 stop9h 50mSpirit Airlines
Sat 10/257:15 amSDF - BWI
1 stop12h 50mSpirit Airlines
Deal found 9/16$206
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
Wed 10/228:00 amBWI - SDF
1 stop9h 55mSpirit Airlines
Fri 10/2411:47 amSDF - BWI
1 stop11h 45mSpirit Airlines
Deal found 9/16$210
This Cheapflightsfares deal was found by Cheapflights users on 9/17. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/244:31 pmBWI - SDF
1 stop6h 16mSpirit Airlines
Mon 10/277:15 amSDF - BWI
1 stop5h 25mSpirit Airlines
Deal found 9/17$216
This Southwest deal was found by Cheapflights users on 9/15. 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 10/147:55 pmBWI - SDF
Nonstop1h 45mSouthwest
Wed 10/153:50 pmSDF - BWI
Nonstop1h 40mSouthwest
Deal found 9/15$217

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 September 17, 2025.
Use the filters below to find and compare flights from Baltimore to Louisville that are best for you.

Fly from

Baltimore

Fly to

Louisville

Route

Depart

Return

Price

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 11/6

7:45 pm-12:01 am

1 stop4h 16m

Louisville Intl

Wed 11/12

6:00 am-12:46 pm

1 stop6h 46m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 10/23

7:45 pm-12:01 am

1 stop4h 16m

Louisville Intl

Tue 10/28

10:30 am-4:54 pm

1 stop6h 24m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Tue 10/14

7:05 am-11:49 am

1 stop4h 44m

Louisville Intl

Wed 10/15

8:17 am-12:45 pm

1 stop4h 28m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 10/24

7:45 pm-12:01 am

1 stop4h 16m

Louisville Intl

Mon 10/27

8:15 pm-12:41 am

1 stop4h 26m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 11/7

7:45 pm-12:01 am

1 stop4h 16m

Louisville Intl

Tue 11/11

7:05 am-11:11 am

1 stop4h 06m

$177

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 10/25

6:56 am-6:03 pm

1 stop11h 07m

Louisville Intl

Sun 10/26

6:58 pm-11:54 am

1 stop16h 56m

$209

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Fri 10/24

4:31 pm-10:47 pm

1 stop6h 16m

Louisville Intl

Mon 10/27

7:15 am-12:40 pm

1 stop29h 25m

$223

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Sat 10/25

11:00 am-12:50 pm

Nonstop1h 50m

Louisville Intl

Wed 10/29

11:05 am-12:40 pm

Nonstop1h 35m

$232

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Thu 11/6

10:25 pm-12:15 am

Nonstop1h 50m

Louisville Intl

Wed 11/12

3:20 pm-4:55 pm

Nonstop1h 35m

$232

BaltimoreLouisville

BWI - SDF

BWISDF

Baltimore/Washington

Wed 11/12

9:00 pm-10:50 pm

Nonstop1h 50m

Louisville Intl

Mon 11/17

5:30 am-7:05 am

Nonstop1h 35m

$232

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 23 results
1
2
3

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 September 12, 2025.

The best time to book flights from Baltimore to Louisville is 53 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, January is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $299). Flying from Baltimore to Louisville in April is currently the most expensive (average of $369). 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 September 17, 2025.

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 evening, which can drop the price by up to 54% versus a flight at noon.

What is the cheapest day to fly from Baltimore to Louisville?

Use this chart to determine the cheapest time to fly round-trip from Baltimore to Louisville. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Baltimore to Louisville flight should consider departing on Sunday at noon when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

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 September 17, 2025.
See what other customers who have flown with Southwest, Delta, and United 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
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
8.0
Very good
7,961 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Entertainment

7.5

Overall

8.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 45m for a nonstop flight. There is 1 flight from Baltimore/Washington to Louisville per day from 4 airlines.

  • How popular is this Baltimore to Louisville flight route?

    The Baltimore/Washington to Louisville Intl flight path was viewed by 9 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 4h 16m. Baltimore and Louisville are separated by a distance of 493 mi.

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

    Currently priced at $186, Delta will fly you from Baltimore to Louisville and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Southwest - these airlines can fly you to your destination from $191 and $196, respectively. Users have found that Delta is 39% 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 $88. On average you can expect to pay $286. The most popular route, (Baltimore/Washington - Louisville Intl), can usually be booked for $135.

  • 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, January is the cheapest month in which you can book a flight from Baltimore to Louisville (average of $299). Flying from Baltimore to Louisville in April is currently the most expensive (average of $369). 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

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

Alternative routes for Baltimore to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Reagan-National to Nashville flights
Dulles Intl to Nashville flights
Philadelphia to Nashville flights
Baltimore to Nashville flights
Reagan-National to Cincinnati flights
Dulles Intl to Cincinnati flights
Dulles Intl to Louisville flights
Baltimore to Cincinnati flights
Reagan-National to Louisville flights
Reagan-National to Knoxville flights
Baltimore to Knoxville flights
Dulles Intl to Knoxville flights
Philadelphia to Cincinnati flights
Philadelphia to Knoxville flights
Reagan-National to Lexington flights
Dulles Intl to Lexington flights
Philadelphia to Louisville flights
Philadelphia to Lexington flights
Baltimore to Lexington flights
Dulles Intl to Blountville flights
Reagan-National to Blountville flights
Dulles Intl to Evansville flights
Baltimore to Blountville flights
Reagan-National to Evansville flights
Dulles Intl to Huntington flights
Philadelphia to Blountville flights
Philadelphia to Evansville flights
Reagan-National to Huntington flights
Baltimore to Huntington flights
Baltimore to Paducah flights
Baltimore to Evansville flights
Baltimore to Owensboro flights
Reagan-National to Owensboro flights
Philadelphia to Owensboro flights
Dulles Intl to Paducah flights
Reagan-National to Paducah flights
Philadelphia to Paducah flights

Top 4 airlines flying from Baltimore to Louisville

Discover the top 4 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$186Average$394FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$191Average$269FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$196Average$312FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$231Average$500FlexibilityNo cancel feeOn-time71%

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.