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

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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — BWI
Jun 10 — Jun 171
Wed 6/10
Wed 6/17
1 adult, Economy
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Find cheap flights from Louisville to Baltimore with Cheapflights

1. Tell us where you want to go

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Cheapflights Tip: The best prices from Louisville Intl to Baltimore/Washington are usually found in August or July, booked 82 days in advance, depart on a Wednesday or Thursday and return on a Wednesday

Cheap flight deals from Louisville to Baltimore

Cheapest flights from Louisville to Baltimore
Explore the most affordable flight options available from Louisville to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 11, 2026.

This Southwest deal was found by Cheapflights users on 5/7. 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 6/26:20 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Tue 6/210:50 am
BWI
-
SDF
Nonstop1h 50m
Southwest
Deal found 5/7$227
This Southwest deal was found by Cheapflights users on 5/8. 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 6/36:20 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Thu 6/410:40 pm
BWI
-
SDF
Nonstop1h 45m
Southwest
Deal found 5/8$231
This Southwest deal was found by Cheapflights users on 5/7. 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 5/305:35 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Mon 6/13:05 pm
BWI
-
SDF
Nonstop1h 45m
Southwest
Deal found 5/7$235
This Delta deal was found by Cheapflights users on 5/10. 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.
Wed 6/106:34 pm
SDF
-
BWI
1 stop6h 06m
Delta
Tue 6/165:07 pm
BWI
-
SDF
1 stop7h 25m
Delta
Deal found 5/10$237
This Southwest deal was found by Cheapflights users on 5/8. 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 8/125:10 pm
SDF
-
BWI
Nonstop1h 45m
Southwest
Wed 8/198:15 am
BWI
-
SDF
2 stops8h 15m
Southwest
Deal found 5/8$242
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 6/89:10 pm
SDF
-
BWI
1 stop15h 03m
Multiple Airlines
Wed 7/229:32 pm
BWI
-
SDF
2 stops46h 26m
Multiple Airlines
Deal found 5/7$247
This Southwest deal was found by Cheapflights users on 5/7. 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 10/177:05 am
SDF
-
BWI
2 stops7h 15m
Southwest
Mon 10/1910:50 am
BWI
-
SDF
Nonstop1h 45m
Southwest
Deal found 5/7$250
This Southwest deal was found by Cheapflights users on 5/11. 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 6/85:50 am
SDF
-
BWI
Nonstop1h 35m
Southwest
Wed 6/107:50 am
BWI
-
SDF
1 stop4h 15m
Southwest
Deal found 5/11$252

Find flight deals from Louisville to Baltimore

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Baltimore (BWI). 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 May 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$227
(Southwest)

One-way from

$103
(Kiwi.com)

Popular in

February

Cheapest in

August

Average price

$338
Provider with most accurate pricing for Louisville Intl-Baltimore/Washington flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Baltimore/Washington flights.
Search Deals
From Louisville Intl to Baltimore/Washington
Search Deals
One-way flight from Louisville Intl to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Baltimore 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 May 11, 2026.
Use the filters below to find and compare flights from Louisville to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Mon 6/1

7:59 pm-12:57 am

1 stop4h 58m

Baltimore/Washington

Tue 6/2

6:10 am-9:59 am

1 stop3h 49m

$245
Quickest round-trip

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Thu 9/10

11:50 am-1:30 pm

Nonstop1h 40m

Baltimore/Washington

Mon 9/14

1:50 pm-3:30 pm

Nonstop1h 40m

$257

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Thu 10/29

8:20 am-1:04 pm

1 stop4h 44m

Baltimore/Washington

Mon 11/2

8:10 am-1:49 pm

1 stop5h 39m

$267

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Sat 9/19

6:45 am-2:50 pm

2 stops8h 05m

Baltimore/Washington

Mon 9/21

7:10 am-3:40 pm

1 stop8h 30m

$282

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Wed 7/15

5:35 am-7:10 am

Nonstop1h 35m

Baltimore/Washington

Mon 7/20

10:45 am-12:30 pm

Nonstop1h 45m

$307

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Sun 7/5

6:00 am-10:47 am

1 stop4h 47m

Baltimore/Washington

Wed 7/8

11:52 am-5:49 pm

1 stop5h 57m

$312

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Mon 6/8

5:50 am-7:25 am

Nonstop1h 35m

Baltimore/Washington

Thu 6/11

1:50 pm-10:25 pm

2 stops8h 35m

$316

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Mon 6/29

3:35 pm-8:15 pm

1 stop4h 40m

Baltimore/Washington

Wed 7/8

7:50 am-12:05 pm

1 stop4h 15m

$317

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Tue 6/2

5:50 pm-11:30 pm

1 stop5h 40m

Baltimore/Washington

Fri 6/5

3:35 pm-10:50 pm

2 stops7h 15m

$322

LouisvilleBaltimore

SDF - BWI

SDFBWI

Louisville Intl

Fri 9/11

2:15 pm-10:35 pm

2 stops8h 20m

Baltimore/Washington

Mon 9/14

6:35 am-2:25 pm

2 stops7h 50m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 21 resultsSorted by cheapest first
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Compare providers for flights from Louisville to Baltimore

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 Baltimore in May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
CheapTicketsDealPrice 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 Louisville-Baltimore flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Baltimore flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Louisville-Baltimore flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Baltimore 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-Baltimore 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 Baltimore

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

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

The price you pay for your flight from Louisville to Baltimore may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Louisville to Baltimore (average of $173). Flying from Louisville to Baltimore in February is currently the most expensive (average of $641). 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 SDF to BWI?

Find hourly flight availability from Louisville to Baltimore. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 11, 2026.

It’s typically best to fly out from Louisville to Baltimore in the afternoon. Doing so could potentially save you 33% on the flight price compared to flying at noon, which is usually more expensive.

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

Reviews of airlines servicing Baltimore

Get insights into the airlines that provide service to Baltimore. 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 Baltimore. Reviews last updated May 11, 2026.
Get a feel of what it's like to fly with Southwest and Delta from Louisville to Baltimore by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,301 reviews

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Food

7.0

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
7.9
Good
4,301 reviews
Southwest
7.9
Good
4,301 reviews

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Food

7.0

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.
Delta
7.9
Good
8,452 reviews
Southwest
7.9
Good
4,301 reviews

Comfort

8.0

Boarding

8.1

Overall

7.9

Crew

8.6

Entertainment

7.5

Food

7.0

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 Louisville to Baltimore. 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 Louisville to Baltimore?

    Baltimore/Washington is the airport most travelers will use when flying to Baltimore from Louisville Intl. Booking flights from Louisville Intl (SDF) to Baltimore/Washington (BWI) should be relatively easy as there are 2 daily flights to Baltimore from 2 different airlines. 1h 35m is how long a flight from Louisville to Baltimore/Washington will take if you book a nonstop flight.

  • How popular is this Louisville to Baltimore flight route?

    This flight path from Louisville Intl to Baltimore/Washington was viewed by 23 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 Louisville to Baltimore?

    A quick flight from Louisville to Baltimore can take about 1h 40m. Delta provides one of the quickest options available for as low as $257. The distance from Louisville to Baltimore is about 493 mi. This flight may include one or multiple stops.

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

    Our cheapest airline available from Louisville to Baltimore is Southwest. Our recent data shows that you can find tickets from as low as $179 on this airline. An additional option worth looking into is Delta, starting at $221. Southwest is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Louisville to Baltimore?

    Looking at all options, your cheapest flight can be booked for $103. While the most popular route (Louisville Intl - Baltimore/Washington) can be booked for $227 on average, our data indicates $315 when flying from Louisville to Baltimore.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Louisville to Baltimore (average of $173). Flying from Louisville to Baltimore in February is currently the most expensive (average of $641). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Louisville to Baltimore

Discover the top 2 airlines that operate flights from Louisville to Baltimore. 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 May 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
SouthwestCheapest$179Average$343FlexibilityNo cancel feeOn-time63%
DeltaCheapest$221Average$331FlexibilityNo cancel feeOn-timeN/A

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