Dulles to Buffalo (IAD–BUF) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
IAD–BUF is served by 2 airlines with nonstop service. United Airlines leads the route. The flight covers 284 miles in approximately 1h 29m. Beyond nonstop, 1-stop connecting options are also available.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AV, CM, SN | 49 | CR5, E7W, ERJ | 1h25-1h33 | Star Alliance | AV, CM, SN | |
| GXA GXA | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
On-Time Performance
Other ways to reach Buffalo from Dulles
| Metric | IAD→BUF | DCA→BUF | BWI→BUF |
|---|---|---|---|
| Distance from IAD | – | 23 mi | 45 mi |
| Nonstop airlines | 2 | 3 | 4 |
| Weekly flights | 75 | 29 | 42 |
| Flight time | 1h 29m | 1h 19m | 0h 48m |
| Departure OTP | 100% | – | – |
Travel Essentials
IAD: EDT · BUF: EDT
When it's 6:00 PM in Dulles, it's 6:00 PM in Buffalo.
WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).
IAD–BUF Quick Facts
Frequently Asked Questions
Flights from IAD to BUF
Washington Dulles International Airport (IAD) and Buffalo Niagara International Airport (BUF) are connected by nonstop service from United Airlines. With 75 weekly departures, this is a heavily served route.
IAD to BUF Flight Duration and Schedule
Nonstop flight time from IAD to BUF is about 1 hours 29 minutes gate to gate. The route covers a distance of 284 miles (457 km). There are approximately 75 weekly flights outbound and 80 return, totaling 155 flights per week in both directions.
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via John F. Kennedy, Detroit Metropolitan Wayne County and Charlotte Douglas. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Richmond (RIC).