Departure
Scheduled departure: 2026-10-29 20:59 (UTC-04:00). Confirm airport transport and terminal opening hours in advance.
AA4521 LaGuardia Airport to Buffalo Niagara International Airport nonstop flight: schedule, airports, aircraft and travel guide.
AA4521 Flight Overview
AA4521 is operated by Republic Airways as American Eagle and connects LaGuardia Airport (LGA) and Buffalo Niagara International Airport (BUF). Scheduled departure: 2026-10-29 20:59 (UTC-04:00); scheduled arrival: 2026-10-29 22:24 (UTC-04:00).
AirlineAmerican Airlines
Flight numberAA4521
RouteLGA to BUF
Scheduled duration1 hr 25 min
New York to Buffalo Route Information
AA4521 is a nonstop flight from LaGuardia Airport (LGA) to Buffalo Niagara International Airport (BUF). Use the information below to plan your journey.
Route distanceApprox. 469 km
Scheduled flight time1 hr 25 min
Time difference0 min
Flight typenonstop
Arrival
Scheduled arrival: 2026-10-29 22:24 (UTC-04:00). Arrange pickup, hotel and onward transport for the arrival date.
Time zones
Departure: New York (UTC-04:00); arrival: Buffalo (UTC-04:00).
AA4521 On-time Performance & History
Methodology
70%Arrival on-time rate
Sample flights70 (flights)
Average departure delay51 min
Average arrival delay15 min
Cancllation rate0%
Longest delay-
Early arrivals50%
Historical statistics are for reference only and do not predict future flight performance.
Aircraft, Cabin & Services
Based on currently published aircraft and cabin information; the operating aircraft may change.
Published aircraft type
Embraer 170
Economy 30 in; Business 37 in
37 in
Seat configuration depends on the operating aircraft
30 in
Availability and fees depend on the flight
AA4521 Airports
Terminals follow the published schedule; check official airline channels for same-day gates and operations.
LGALaGuardia Airport
New York, United States · UTC-04:00
- Departure terminal
- B
- Check-in counter
- Announced on the day
BUFBuffalo Niagara International Airport
Buffalo · UTC-04:00
- Arrival terminal
- Baggage belt
- Announced on the day
LaGuardia Airport Departure & Buffalo Niagara International Airport Arrival Guide
Departure date: 2026-10-29. Terminal and arrival information helps plan your journey.
Departing from LaGuardia Airport
AA4521 is scheduled to depart from B. Allow time for international check-in, baggage drop, security and immigration.
Arriving at Buffalo Niagara International Airport
Scheduled arrival is at . After immigration, take the MRT, taxi, ride-hailing service or airport bus to the city.
Planning your arrival
Scheduled arrival: 2026-10-29 22:24. Use the arrival date when booking hotels and pickup services.
Flight Changes, Cancellations & Missed Flights
If the schedule or aircraft changes, follow the booking channel and operating carrier rules.
Schedule changes
After an airline or booking-platform notice, confirm the new date, terminal and connecting transport.
Cancellation and changes
Refund, rebooking and involuntary-change rules depend on the booking channel, fare conditions and airline notice.
Missed flight
If you may not reach the airport on time, contact the booking channel or airline quickly to protect later sectors.
Check-in, Baggage & Entry Tips
International check-in deadlines, baggage allowance and entry requirements may vary by fare and traveller.
Arrive early for check-in
Arrive at least 3 hours before departure. Counter opening times and online check-in rules follow LaGuardia Airport guidance.
Check baggage allowance
Checked and carry-on baggage allowances depend on cabin, fare rules and membership tier. See the baggage terms in your booking.
Prepare entry documents
Before departure, check passport validity, visa or visa-free eligibility, andBuffalo Niagara International Airport’ latest arrival declaration requirements.
What should I check before flying AA4521?
Check the departure date
For an overnight flight, check the departure date on your ticket and plan airport transport in advance.
Confirm the operating carrier
Follow the airline rules shown in your booking for check-in and checked baggage.
Check boarding information
Gates and operating times may change; follow airline notices and airport displays.
Popular route recommendations
AA4521 Frequently Asked Questions
Which airline operates this flight?
AA4521 is operated by American Airlines.
Where does it depart and arrive?
LaGuardia Airport (LGA) → Buffalo Niagara International Airport (BUF).
What are the departure and arrival times?
Scheduled departure 20:59, arrival 22:24 · 1 hour 25 minutes.
Which terminal is used for check-in?
Departure terminal B, arrival terminal No data. Check-in, gate and baggage belt are announced on the day.
Are meals and inflight entertainment available?
Meals: Snacks. Inflight entertainment: Entertainment available, please bring your own device.
Explore This Route
Departure airportFlights from LaGuardia Airport
Arrival airportBuffalo Niagara International Airport information
Operating airlineRepublic Airways as American Eagle information