Nonstop flights from Buffalo to Chicago

3 airlines fly from Buffalo (BUF) to 2 Chicago airports (ORD and MDW), with up to 10 flights a day.

BUFORD

Routes

2 airport pairs

When they leave

Buffalo time

5:11a7:10pFirst departure 5:11 AM, last 7:10 PM

Eight in the morning, 5:11 AM to 11:45 AM, then two in the afternoon, 1:51 PM to 4:35 PM, then four in the evening, 5:58 PM to 7:10 PM.

Every flight

Earliest first

5:11 AM→6:05 AMBUF to ORDAmerican AirlinesUntil Jan 17, 2027, back Mar 19, 2027Embraer 175Daily
6:54 AM→8:00 AMBUF to ORDUnited AirlinesEmbraer 175Tue
6:55 AM→7:55 AMBUF to ORDUnited AirlinesBoeing 737Mon, Wed, Thu, Fri, Sat, Sun
8:00 AM→8:35 AMBUF to MDWSouthwest AirlinesBoeing 737-700Sun
8:35 AM→9:10 AMBUF to MDWSouthwest AirlinesBoeing 737-700Mon, Tue, Wed, Thu, Fri, Sun
8:40 AM→9:15 AMBUF to MDWSouthwest AirlinesBoeing 737 MAX 8Tue, Wed, Sat
10:30 AM→11:29 AMBUF to ORDUnited AirlinesBoeing 737Daily
10:30 AM→11:35 AMBUF to ORDAmerican AirlinesUntil Jan 17, 2027, back Mar 19, 2027Embraer 175Daily
11:45 AM→12:20 PMBUF to MDWSouthwest AirlinesBoeing 737-700Mon, Thu, Fri
1:51 PM→2:55 PMBUF to ORDUnited AirlinesCRJ 700Daily
4:35 PM→5:15 PMBUF to MDWSouthwest AirlinesBoeing 737-700Sat
5:58 PM→7:00 PMBUF to ORDUnited AirlinesBoeing 737Daily
6:09 PM→7:27 PMBUF to ORDAmerican AirlinesUntil Jan 17, 2027, back Mar 19, 2027Airbus A319Daily
7:00 PM→7:40 PMBUF to MDWSouthwest AirlinesBoeing 737 MAX 8Sun
7:10 PM→7:45 PMBUF to MDWSouthwest AirlinesBoeing 737-700Mon, Tue, Wed, Thu, Fri

Schedules last checked Sep 19, 2026. Times are local.

Flying from Buffalo to Chicago

United Airlines flies most often, 4 times a day on the Boeing 737, CRJ 700 and Embraer 175. American Airlines flies 3 times a day on the Embraer 175 and Airbus A319. Southwest Airlines flies 2 to 3 times a day on the Boeing 737-700 and Boeing 737 MAX 8.

There are 9 or 10 flights every day of the week. The first arrival in Chicago is at 6:05 AM and the last at 7:45 PM.

BUF to ORD is the busiest airport pair, with 49 flights a week, then BUF to MDW with 20.

On BUF to ORD, American Airlines flies it until Jan 17, 2027 and is back on Mar 19, 2027.

Flying back, Chicago to Buffalo has 58 nonstop flights a week.

Return flights

Chicago to BuffaloView

Find the cheapest day to fly from Buffalo to Chicago.

Schedules as of Oct 9, 2026.