Dulles to Buffalo (IAD–BUF) — Airlines, Schedules & Connections
No flights match your filters.
No nonstop flights on this route. connecting options below.
IAD–BUF is served by 2 airlines with nonstop service. United Airlines and GXA lead the route. The flight covers 284 miles in approximately 1h 21m. Beyond nonstop, 81 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AV, CM, SN | 48 | 73G, CR5, E7W, ERJ | 1h21-1h33 | Star Alliance | AV, CM, SN | |
| GXA GXA | 0 | – | – | – | – |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Buffalo from Dulles
| Metric | IAD→BUF | DCA→BUF | BWI→BUF |
|---|---|---|---|
| Distance from IAD | – | 23 mi | 45 mi |
| Nonstop airlines | 2 | 2 | 2 |
| Weekly flights | 76 | 53 | 37 |
| Flight time | 1h 21m | 1h 19m | 1h 8m |
| Departure OTP | 92% | – | – |
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 GXA and United Airlines. With 76 weekly departures, this is a heavily served route.
IAD to BUF Flight Duration and Schedule
Nonstop flight time from IAD to BUF ranges from 1 hours 21 minutes to 1 hours 33 minutes. The route covers a distance of 284 miles (457 km). There are approximately 76 weekly flights outbound and 87 return, totaling 163 flights per week in both directions.
Connecting Options and Alternatives
81 one-stop connections are available, with the fastest taking approximately 2 hours via AGC. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Richmond (RIC).