How long is the YX4425 flight?

The timetable allows 1 h 45 min. Boston to Buffalo is 635 km (394 mi).

Which terminal does YX4425 use?

It usually leaves from Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.

What other flight numbers does YX4425 have?

Also listed as RPA4425 (Republic Airlines' ICAO code) and YX 4425.

YX4425 Flight Status Republic Airlines: Boston to Buffalo (RPA4425)

Republic Airlines YX 4425

Scheduled in 4h36'

BOS Boston

Scheduled: 09:55
Estimated: 09:55

Terminal: B | Gate: B7

Departure: Sun, Nov 8, 2026 · local time EST

Boston Logan International Airport (BOS)

All BOS Departures >

BUF Buffalo

Scheduled: 11:40
Estimated
Delay

Arrival: Sun, Nov 8, 2026 · local time EST

Buffalo Niagara International Airport (BUF)

All BUF Arrivals >

Departs in 4h 36m 0%

BOS 09:55 BUF 11:40

635 km (394 mi) to fly

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

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Distance: 635 km / 394 miles · Scheduled Duration: 01:45

YX 4425 Flight Status & Schedule Republic Airlines Boston to Buffalo

Date	From	To	Departure	Arrival	Status	Details
Nov 08	BOS	BUF	09:55	11:40	Scheduled	Track >
Nov 07	BOS	BUF	08:00	09:50	Scheduled	Track >
Nov 06	BOS	BUF	09:55	11:40	Delayed >2h	Track >
Nov 01	BOS	BUF	09:55	11:40	Delayed >1h	Track >

Republic Airlines' Boston–Buffalo flight covers 635 km (394 mi) and runs three times a week: Friday, Saturday and Sunday. The timetable allows 1 h 45 min; there is not enough recent history yet to say how long it usually takes. Today's flight is scheduled to leave at 09:55 and arrive at 11:40 local time.

< All Boston BOS Departures All Buffalo BUF Arrivals >

About YX 4425

Route: Boston Logan International Airport BOS to Buffalo Niagara International Airport BUF
Distance: 635 km (394 mi)
Scheduled flight time: 1 h 45 min
Flies: Fri, Sat, Sun
Usually departs from: Terminal B

YX 4425 FAQ

How long is the YX4425 flight?: The timetable allows 1 h 45 min. Boston to Buffalo is 635 km (394 mi).
Which days does YX4425 fly?: Three times a week: Friday, Saturday and Sunday, based on the schedule of the last 7 days.
Which terminal does YX4425 use?: It usually leaves from Terminal B at Boston Logan International Airport (BOS). Check the flight card above for today's terminal and gate.
What other flight numbers does YX4425 have?: Also listed as RPA4425 (Republic Airlines' ICAO code) and YX 4425.

YX4425 and Boston BOS to Buffalo BUF Flights

Flight YX4425 is code-shared by 1 airline using the flight number AS4500

Other flights departing from Boston BOS: PD2616, B6111, 9K1853, 9K1831

Other flights arriving at Buffalo BUF: WN2779, F92980, WN1655, OH5472

All flights connecting Boston BOS to Buffalo BUF.