$129 Cheap Delta flights Buffalo (BUF) to Phoenix (PHX)

Finding cheap one-way Delta Air Lines flights from BUF to PHX from $129 on Expedia couldn’t be simpler — just filter by “Price (lowest to highest).” Alternatively, check out our budget-friendly round-trip fares from $228 for your next exciting vacation.**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.

Search for return or one-way flights to Phoenix in July or August. You could find cheaper fares with Delta Air Lines during these off-season months.

Look for affordable Delta Air Lines flights from Buffalo Niagara Intl. Airport (BUF) to Sky Harbor Intl. Airport (PHX) one to three months prior to your day of departure. 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. Regardless of fare class and journey, the best day to book a domestic flight is usually Sunday and the most expensive tends to be 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.

Click on our “Nonstop” filter when searching for direct Delta Air Lines flights from BUF to PHX. You can also compare other airlines offering the same nonstop journey.

Find Delta Air Lines’s earliest flights from BUF to PHX by checking the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**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.

Delta Air Lines flights from Buffalo Niagara Intl. Airport (BUF) to Phoenix land at Sky Harbor Intl. Airport (PHX). This is the main entry point here.

Flying from BUF to PHX with Delta Air Lines comes with a host of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to spend on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are often free within 24 hours of making your booking, but your airline may add a charge after that time. For further information about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you’d like the flexibility to change your plans without additional costs, apply the “Changes included” or “No cancel fee” filter when planning your next adventure.