$136 Cheap Southwest Airlines flights Kansas City (MCI) to Buffalo (BUF)

Scoring cheap one-way Southwest Airlines flights from MCI to BUF from $136 on Expedia is a breeze — just filter by “Price (lowest to highest).” Or check out our budget-friendly return fares from $271 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Southwest Airlines flights to Buffalo are generally more affordable in the quieter months of January and February. Whether you need a round-trip or one-way ticket, you could land a better deal then.

For cheap Southwest Airlines fares from Kansas City Intl. Airport (MCI) to Buffalo Niagara Intl. Airport (BUF), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact the overall price. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by choosing to book on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To find out if there’s a direct journey from MCI to BUF with Southwest Airlines or another airline, check the “Nonstop” filter when searching for flights.

To find the earliest departure from MCI to BUF with Southwest Airlines, sort your results by “Early Morning” and “Morning.” Booking an early flight usually means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Get on a Southwest Airlines flight from Kansas City Intl. Airport (MCI) to Buffalo, and you’ll most likely arrive at Buffalo Niagara Intl. Airport (BUF). This is the airline’s primary hub here.

Depending on the ticket type you purchased, a fee typically applies if you change or cancel your flight more than 24 hours after it’s been confirmed. To find flexible fares, select our “Changes included” and “No cancel fee” boxes when you search for flights. For more information on canceling or changing your reservation, visit “Trips,” select your flight and click on “Manage Booking.”