$174 Cheap Delta flights Phoenix (PHX) to Buffalo (BUF)

Scoring cheap one-way Delta Air Lines flights from PHX to BUF from $174 on Expedia is a cinch — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $347 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.

Look for round-trip or one-way flights to Buffalo in January or February. You could find a cheap fare with Delta Air Lines during these off-season months.

Look for affordable Delta Air Lines flights from Sky Harbor Intl. Airport (PHX) to Buffalo Niagara Intl. Airport (BUF) one to three months prior to your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the ideal day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**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 see if there’s a direct route from PHX to BUF with Delta Air Lines or another airline, select the “Nonstop” filter when searching for flights.

Find Delta Air Lines’s earliest flights from PHX to BUF by selecting the “Morning” and “Early Morning” filters. Not only will you get to your destination sooner, early departures also experience 20% fewer 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.

Take a Delta Air Lines flight from Sky Harbor Intl. Airport (PHX) to Buffalo, and you’ll probably arrive at Buffalo Niagara Intl. Airport (BUF). This is the airline’s primary hub in this destination.

With a rewarding loyalty program and an excellent in-flight experience, Delta Air Lines is a top choice for many travelers flying from PHX to BUF. Also, if you’re a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can go toward future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee will generally apply if you cancel or reschedule your booking more than 24 hours after it’s been confirmed. To find flexible fares, select our “No cancel fee” or “Changes included” filter when you search for flights. For more information on modifying or canceling your reservation, head to “Trips,” select your flight and click on “Manage Booking.”