Cheap flights from Buffalo to Chicago from $92 BUF → ORD
Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD)
The cheapest one-way found recently is $92 with American Airlines, 14 Nov, found 5 days ago.
- Cheapest one-way found recently
- $92, American Airlines, found 5 days ago
- Airlines with nonstop flights
- American Airlines
- Shortest nonstop flight found
- 2 h 8 min
One-way
The cheapest one-way fare on each of 3 departure dates is usually $92 to $142.
Cheapest one-way found recently
$92
14 Nov · American Airlines
Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD)
Leaves 7:57 a.m. · 2 h 8 min trip
nonstop
found 5 days ago
Cheapest nonstop one-way
$92
14 Nov · American Airlines
Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD)
Leaves 7:57 a.m. · 2 h 8 min trip
nonstop
found 5 days ago
Found recently, and the cheapest we hold
$92 14 Novfound 5 days agoOpen this trip
It is also the cheapest one-way we hold, of any age.
What have prices looked like?
Over 42 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $80 to $295.
Those were the prices on those days, not today's.
Is this a good one-way price?
Compared with the cheapest one-way fare on each of 3 departure dates from 13 Nov to 16 Nov, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold one-way fares on 2 other departure dates within 3 days of 14 Nov, and none is cheaper.
Every date we hold
3 fares on 3 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 13 Nov | $92 | American Airlines | Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD) | nonstop | found 5 days ago | Open this trip |
| 14 Nov | $92 | American Airlines | Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD) | nonstop | found 5 days ago | Open this trip |
| 16 Nov | $191 | Frontier Airlines | Buffalo Niagara International Airport (BUF) → O'Hare International Airport (ORD) | 1 stop | found 7 days ago | Open this trip |
Airlines on the cheapest dates: American Airlines, Frontier Airlines.
Premium cabin fares from Buffalo to Chicago
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 14 Nov in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Buffalo to Chicago?
One-way
The cheapest fares were 7 to 13 days before departure.
From the cheapest one-way each day between 24 Sept and 11 Nov (42 days), grouped by how many days ahead the flight left; one adult in economy.
Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.
Prices reflect recent searches — current fares may differ.
See these ranges as a table
| Booked ahead by | Typical fare | Cheapest day | Above the cheapest | Days of prices |
|---|---|---|---|---|
| 0–6 days | $122 | $80 | +2% | 29 |
| 7–13 days | $120 | $80 | Cheapest seen | 32 |
| 14–29 days | $147 | $130 | +23% | 18 |
| 90–179 days | $224 | $224 | +87% | 8 |
| 180+ days | $207 | $207 | +73% | 7 |
Could a nearby airport be cheaper?
A different airport at either end can change the fare — sometimes a lot.
Return
Toronto → Chicago
95 km from Buffalo
C$392 (US$275)
8 Feb 2027 – 7 Mar 2027 · YTZ → ORD · out nonstop, back nonstop
found 2 days ago
Cheapest recent price on each route — round trip, per traveler in Economy. Distances are in a straight line.
One-way
Toronto → Chicago
95 km from Buffalo
C$234 (US$164)
C$103 (US$72) more than flying from Buffalo
20 Dec · YYZ → ORD · nonstop
found 4 days ago
Rochester → Chicago
107 km from Buffalo
$182
$90 more than flying from Buffalo
21 Nov · ROC → ORD · nonstop
found 2 days ago
Niagara Falls → Chicago
24 km from Buffalo
$252
$160 more than flying from Buffalo
1 Feb 2027 · IAG → RFD · 1 stop
found 5 days ago
Erie → Chicago
130 km from Buffalo
$276
$184 more than flying from Buffalo
15 Dec · ERI → ORD · nonstop
found 7 days ago
Kitchener → Chicago
145 km from Buffalo
C$509 (US$357)
C$378 (US$265) more than flying from Buffalo
21 Nov · YKF → ORD · 3 stops
found 2 days ago
Cheapest recent price on each route — one way, per traveler in Economy. Distances are in a straight line.
Live price for these dates
The cheapest one-way found recently is for 14 Nov. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a one-way flight from Buffalo to Chicago?
The cheapest one-way found recently is $92 with American Airlines, 14 Nov, found 5 days ago. The cheapest one-way fare on each of 3 departure dates is usually $92 to $142.
How far ahead should I book a flight from Buffalo to Chicago?
In 42 days of prices between 24 Sept and 11 Nov, one-way fares were cheapest 7 to 13 days before departure.
Is there a direct flight from Buffalo to Chicago?
Yes, the cheapest nonstop one-way found recently is $92 with American Airlines, 14 Nov, found 5 days ago.
How long is the flight from Buffalo to Chicago?
The cheapest nonstop one-way found recently, with American Airlines on 14 Nov, takes 2 h 8 min from Buffalo Niagara International Airport (BUF) to O'Hare International Airport (ORD).
Which airlines have the cheapest flights from Buffalo to Chicago?
Between 13 Nov and 16 Nov, American Airlines has the cheapest one-way on 2 of the 3 departure dates we hold, and Frontier Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work