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CMI to BUF: distance & flight time
Champaign (University of Illinois Willard Airport) → Buffalo (Buffalo Niagara International Airport)
533 mi
857 km · 463 nm
1h 37m
estimated nonstop flight time
+1h
time difference · heading northeast
See live CMI→BUF fares Phone-only fares on this route — call free
Flight time details
533 miles nonstop takes roughly 1h 37m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 1-hour time gain when reading arrival times on your ticket.
The two airports
- CMI — University of Illinois Willard Airport · Champaign, United States
- BUF — Buffalo Niagara International Airport · Buffalo, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near CMI
Near BUF
- IAG · Niagara Falls International Airport16 mi away
- YYZ · Lester B. Pearson International Airport68 mi away
- YCM · Niagara District Airport28 mi away
- DKK · Chautauqua County-Dunkirk Airport41 mi away
Frequently asked questions
How far is CMI from BUF?
The flight distance from Champaign (CMI) to Buffalo (BUF) is 533 miles (857 km, 463 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from CMI to BUF?
A nonstop flight takes about 1h 37m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Champaign and Buffalo?
Buffalo is 1 hour ahead of Champaign.
What is the cheapest way to fly from CMI to BUF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on CMI–BUF that never appear on search engines, with no booking fees.