$217 Cheap Flights from Baltimore (BWI) to Lafayette (LAF)

View $217 flight on Sun, Aug 17, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Lafayette, IN (LAF-Purdue University)

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Cheap Flights from Baltimore to Lafayette (BWI-LAF)

Prices were available within the past 7 days and start at $217 for one-way flights and $265 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Aug 18 - Fri, Dec 19
BWI
Baltimore
LAF
Lafayette
$265 Roundtrip, found 6 days ago
$265
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 18 from Baltimore to Lafayette, returning Fri, Dec 19, priced at $265 found 6 days ago
United
Fri, Sep 19 - Mon, Sep 22
BWI
Baltimore
LAF
Lafayette
$267 Roundtrip, found 6 days ago
$267
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 19 from Baltimore to Lafayette, returning Mon, Sep 22, priced at $267 found 6 days ago
United
Mon, Aug 18 - Thu, Sep 4
BWI
Baltimore
LAF
Lafayette
$314 Roundtrip, found 6 days ago
$314
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 18 from Baltimore to Lafayette, returning Thu, Sep 4, priced at $314 found 6 days ago
United
Fri, Aug 22 - Fri, Sep 12
BWI
Baltimore
LAF
Lafayette
$319 Roundtrip, found 6 days ago
$319
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 22 from Baltimore to Lafayette, returning Fri, Sep 12, priced at $319 found 6 days ago
United
Mon, Aug 25 - Fri, Sep 12
BWI
Baltimore
LAF
Lafayette
$324 Roundtrip, found 6 days ago
$324
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 25 from Baltimore to Lafayette, returning Fri, Sep 12, priced at $324 found 6 days ago
United
Mon, Aug 18 - Fri, Dec 19
BWI
Baltimore
LAF
Lafayette
$335 Roundtrip, found 6 days ago
$335
Roundtrip
found 6 days ago
Select United flight, departing Mon, Aug 18 from Baltimore to Lafayette, returning Fri, Dec 19, priced at $335 found 6 days ago
United
Fri, Sep 19 - Mon, Sep 22
BWI
Baltimore
LAF
Lafayette
$337 Roundtrip, found 6 days ago
$337
Roundtrip
found 6 days ago
Select United flight, departing Fri, Sep 19 from Baltimore to Lafayette, returning Mon, Sep 22, priced at $337 found 6 days ago
United
Fri, Sep 5 - Mon, Sep 8
BWI
Baltimore
LAF
Lafayette
$342 Roundtrip, found 3 days ago
$342
Roundtrip
found 3 days ago
Select United flight, departing Fri, Sep 5 from Baltimore to Lafayette, returning Mon, Sep 8, priced at $342 found 3 days ago
United
Thu, Aug 7 - Thu, Aug 14
BWI
Baltimore
LAF
Lafayette
$348 Roundtrip, found 6 days ago
$348
Roundtrip
found 6 days ago
Select United flight, departing Thu, Aug 7 from Baltimore to Lafayette, returning Thu, Aug 14, priced at $348 found 6 days ago
United
Fri, Aug 22 - Sat, Sep 6
BWI
Baltimore
LAF
Lafayette
$355 Roundtrip, found 6 days ago
$355
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 22 from Baltimore to Lafayette, returning Sat, Sep 6, priced at $355 found 6 days ago

Alternative airports near Lafayette

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Purdue University LAF. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $385
LAF
Purdue University
CheapestClosest
Average driving time to city center8 min
Flights from $385
Flights from Baltimore (BWI) to Lafayette (LAF)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Purdue University
Airlines serving
United
Roundtrip price
$265
Distance
551 mi

Baltimore to Lafayette Flights

The cheapest times to fly from Baltimore to Lafayette

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Lafayette are during the month of August. You can find some of the cheapest flights from Baltimore to Lafayette with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Lafayette

Sunday is one of the best days to book for cheap flights from Baltimore to Lafayette: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Lafayette

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Lafayette in 2025. You can also book with separate airlines for your outbound and return journeys, from $217 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Lafayette flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Lafayette airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University) cost?
Discover the latest flight deals from BWI to LAF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to LAF?
The cheapest flights from BWI to LAF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to LAF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BWI to LAF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University)?
There aren't any daily direct flights available from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University). But you can opt for flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be soaring above the clouds before you know it.
What day of the week has the most flights from BWI to LAF?
Typically you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University)?
To touch down at Lafayette, IN (LAF-Purdue University) on time, select a flight that takes off from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for West Lafayette from Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Indianapolis Intl. Airport (IND) is the only airport in West Lafayette with direct flights from Baltimore Washington Intl. Thurgood Marshall Airport (BWI). Compare your options and find affordable fares on Expedia.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University) last-minute?
Booking your ticket from BWI to LAF right before your trip is usually more expensive. However, if you're flexible with your itinerary, you could bag a cheap last-minute fare.
Is it cheaper to book a BWI to LAF flight and hotel package?
You'll generally save money by booking a BWI to LAF flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your preferred accommodations and flights, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Lafayette, IN (LAF-Purdue University)?
In most cases, you're able to reschedule or cancel your BWI to LAF flight. However, there may be additional fees, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's fees and policies on flight changes, or if you want further information, go to our Customer Service portal.

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*Available to One Key members.