Flights from Ontario to Buffalo

Did you mean Flights from Buffalo to Ontario?

Ontario

United States

ONT

Ontario International Airport

Buffalo

United States

BUF

Buffalo Niagara International Airport

Route: Published service includes stops
Distance: 2,168 miles
Marketing airlines: 1 airline
Aircraft: 1 aircraft type
Dates: Oct 25 – Nov 30, 2026

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Departure window: 2026-10-23 – 2026-11-21.

No recent fares appear in this limited preview. This does not mean the route is sold out. Use the search controls to check other dates and routes.

Ontario to Buffalo route overview

Ontario International Airport (ONT) serves Ontario; Buffalo Niagara International Airport (BUF) serves Buffalo.

The airports are 2,168 miles apart by great-circle distance.

Roame's current schedule feed lists service with stops from ONT to BUF, but no nonstop service.

Marketing airlines listed in the current schedule, including codeshare sellers, are United Airlines (UA). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 25 – Nov 30, 2026.

Marketing airlines on the Ontario to Buffalo route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Airline alliance affiliations represented: Star Alliance

Aircraft flying from ONT to BUF

Frequently asked questions

Which airports serve the Ontario to Buffalo route?

Ontario International Airport (ONT) is the origin airport and Buffalo Niagara International Airport (BUF) is the destination airport.

How far is Buffalo from Ontario?

ONT and BUF are approximately 2,168 miles apart by great-circle distance.

Are there direct flights from ONT to BUF?

No. Roame's current schedule feed lists service with stops from ONT to BUF, but no nonstop service.

Which airlines market flights from ONT to BUF?

Which aircraft fly from ONT to BUF?

Aircraft listed in the current schedule include Airbus A320 (320).