Flights operate between Buffalo (BUF) and Washington (IAD).
1 airline operates this route with 3 flights daily flights.
Average flight time is 1h 14m - 1h 38m.
Route distance is 285 miles (459 km).
Route Distance
285 miles (459 km)
Average Duration
1h 14m - 1h 38m
Airlines Operating This Route
United Airlines
Flight Frequency
Daily Flights
3 flights
Weekly Flights
21
Typical Departure Time Ranges
Earliest Departure
10:37
Latest Departure
19:30
Route Intelligence Dashboard
Overall Connectivity Score
70
GoodRoute Diversity
1
Direct Routes
United Airlines serves 1 destination from BUF
Weekly Frequency
21
Weekly Flights
Trend: Stable
Top 1 Most Frequent Routes - Details
| Route | Weekly Flights | Duration | Distance | Reliability |
|---|---|---|---|---|
| BUF → Washington (IAD) (IAD) | 21/week | 1h 14m - 1h 38m | 285 km | Moderate |
Flight Schedule & Filters
United Airlines flights from Buffalo (BUF) to Washington (IAD)
United Airlines operates scheduled nonstop flights between Buffalo (BUF) and Washington (IAD). United Airlines operates 3 flights daily flights on this route.• Flight Duration: 1h 14m - 1h 38m (average flight time)• Distance: 285 miles (459 km) (air miles between airports)• Daily Flights: 3 flights (scheduled departures per day)
Buffalo (BUF)
US
Washington (IAD)
US
FLIGHT TIME
1h 14m - 1h 38m
FLIGHT DISTANCE
285 miles (459 km)
1h 18m - 1h 26m
10:37
19:30
285 miles (459 km)
March
1 (Show)
21
United Airlines Terminal Information & Contact
Departure Terminal - Buffalo (BUF)
Terminal: 1
Phone: 1-800-864-8331
Location: 1, Buffalo, US
Arrival Terminal - Washington (IAD)
Terminal: 1
Phone: 1-800-864-8331
Location: 1, Washington, US
United Airlines Flight Schedule from Buffalo (BUF) to Washington (IAD)
| Flight | Airline | Departure | Arrival | Aircraft |
|---|---|---|---|---|
UA4020 |  United Airlines | 10:37 | 11:55:00 | Embraer 175 (Enhanced Winglets) |
UA4291 | United Airlines | 14:55 | 16:21:00 | Embraer RJ135 / RJ140 / RJ145 |
UA4270 | United Airlines | 19:30 | 20:54:00 | Embraer RJ135 / RJ140 / RJ145 |
United Airlines Monthly Flight Calendar
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United Airlines Terminal Information
Departure Terminal at Buffalo (BUF):
• Terminal : United Airlines operates from this terminal
Terminal 1:
• United Airlines Terminal Phone: 1-800-864-8331
Arrival Terminal at Washington (IAD):
• Terminal : United Airlines operates from this terminal
Terminal 1:
• United Airlines Terminal Phone: 1-800-864-8331
Weather & Climate at Washington (IAD)
14.4°C
Avg Temperature88mm
Avg Rainfall10.3km/h
Avg Wind Speed66%
Avg HumidityBest Months to Visit
Challenging Months
12-Month Weather Overview
Wind Speed by Month
Humidity by Month
Best Time to Book Flights to Washington (IAD)
Best Booking Window
Book 2-3 months in advance for best prices
Booking Tip
Avoid booking during extreme weather months for better deals
Peak Travel Months
Expect higher prices and more crowds during these months. Book early to secure better rates.
Recommended Months
These months offer the best balance of weather, prices, and availability.
Monthly Booking Recommendations
Flight Price Trends for Washington (IAD)
Cheapest Months to Fly
Book flights during these months for the best deals and lowest prices.
Most Expensive Months
Prices are typically highest during these months. Consider booking well in advance or choosing alternative dates.
Price Trend Analysis
Prices are typically lower during shoulder seasons
Monthly Price Trends
Best Months to Fly United Airlines to Washington (IAD)
Best Months
Optimal conditions for travel with favorable weather, prices, and availability.
Shoulder Season
Transition periods with moderate conditions. Good balance of price and experience.
Challenging Months
These months may have less favorable conditions. Plan accordingly and book early.
Seasonal Insight
Best travel months: 2025-08
Seasonal Travel Calendar
United Airlines Contact Information and Customer Services
United Airlines Address
233 S. Wacker Drive
Chicago, IL 60606, United States
Customer Service Phone
+1-800-864-8331Official Website
united.comFrequently Asked Questions
How many United Airlines flights operate from Buffalo (BUF) to Washington (IAD)?
United Airlines operates 3 flights from Buffalo (BUF) to Washington (IAD).
What city does Washington (IAD) airport serve?
Washington (IAD) airport serves Washington, US.
How long is the United Airlines flight from Buffalo (BUF) to Washington (IAD)?
The flight duration is approximately 1h 14m - 1h 38m.
What is the distance from Buffalo (BUF) to Washington (IAD)?
The distance is 285 miles (459 km).
What aircraft does United Airlines use on this route?
United Airlines uses Embraer 175 (Enhanced Winglets), Embraer RJ135 / RJ140 / RJ145 on this route.
What are the earliest and latest United Airlines flight departure times?
The earliest United Airlines flight departs at 10:37 and the latest departs at 19:30.
Which terminal does United Airlines use at Buffalo (BUF)?
United Airlines flights from Buffalo (BUF) depart from Terminal 1. Terminal 1 phone: 1-800-864-8331.
View all United Airlines flights to Buffalo (BUF) →
Popular United Airlines routes from Buffalo include multiple destinations.
Route data verified regularly by Triposia Travel Research Team.