
Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Los Angeles - Ontario Intl. Airport (ONT)
- American Airlines
American Airlines
- Southwest Airlines
Southwest Airlines
- Delta
Delta
- Frontier Airlines
Frontier Airlines
- United
United
- Alaska Airlines
Alaska Airlines
- JetBlue Airways
JetBlue Airways
- Plan, book, fly with confidence
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Cheap Flights from Buffalo to Ontario (BUF-ONT)
Prices were available within the past 7 days and start at $134 for one-way flights and $278 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.










Find the cheapest month to fly from Buffalo (BUF) to Ontario (ONT)
August is typically the cheapest month to fly
Graph displaying average flight prices per month
Alternative airports near Ontario
Prices were available within the past 7 days. Prices and availability are subject to change.
Origin airport | Buffalo Niagara Intl. |
Destination airport | Los Angeles - Ontario Intl. |
Airlines serving | Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United |
Roundtrip price | $278 |
Distance | 2167 mi |
Buffalo to Ontario Flights
The cheapest times to fly from Buffalo to Ontario
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 Buffalo to Ontario are during the month of September. You can find some of the cheapest flights from Buffalo to Ontario with Expedia's search tool and vast selection of airlines.
The best time to book a flight from Buffalo to Ontario
Sunday is one of the best days to book for cheap flights from Buffalo to Ontario: 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 Buffalo to Ontario
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 Buffalo to Ontario in 2025. You can also book with separate airlines for your outbound and return journeys, from $134 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 Buffalo to Ontario 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 Buffalo to Ontario 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.
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Top Routes from Buffalo
- Buffalo to Chicago (BUF - ORD)
- Buffalo to Newark Liberty Intl. Airport (BUF - EWR)
- Buffalo to Phoenix (BUF - PHX)
- Buffalo to Miami (BUF - MIA)
- Buffalo to Tampa (BUF - TPA)
- Buffalo to Punta Cana (BUF - PUJ)
- Buffalo to Fort Lauderdale (BUF - FLL)
- Buffalo to Boston (BUF - BOS)
- Buffalo to New York (BUF - LGA)
- Buffalo to Charlotte (BUF - CLT)
- Buffalo to Denver (BUF - DEN)
- Buffalo to New York (BUF - JFK)
Top Routes to Ontario
- Chicago to Ontario (ORD - ONT)
- Phoenix to Ontario (PHX - ONT)
- Newark Liberty Intl. Airport to Ontario (EWR - ONT)
- Chicago to Ontario (MDW - ONT)
- Portland to Ontario (PDX - ONT)
- Boston to Ontario (BOS - ONT)
- Salt Lake City to Ontario (SLC - ONT)
- Denver to Ontario (DEN - ONT)
- Sacramento to Ontario (SMF - ONT)
- San Jose to Ontario (SJC - ONT)
- Seattle to Ontario (SEA - ONT)
- New York to Ontario (JFK - ONT)
Top Routes from Buffalo
- American Airlines Buffalo to Chicago
- United Buffalo to Newark Liberty Intl. Airport
- JetBlue Airways Buffalo to Phoenix
- American Airlines Buffalo to Miami
- JetBlue Airways Buffalo to Tampa
- JetBlue Airways Buffalo to Fort Lauderdale
- JetBlue Airways Buffalo to Boston
- American Airlines Buffalo to New York
- American Airlines Buffalo to Charlotte
- JetBlue Airways Buffalo to Denver
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Orange County
Nearby Airports
- Niagara Falls Intl. Airport (IAG)
- Cattaraugus County Airport (OLE)
- Greater Rochester Intl. Airport (ROC)
- Chautauqua County Airport (JHW)
- Bradford Regional Airport (BFD)
- Erie Intl. Airport (ERI)
- Elmira - Corning Regional Airport (ELM)
- Tompkins Regional Airport (ITH)
- DuBois Regional Airport (DUJ)
- Venango Regional Airport (FKL)
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