--- title: "Buffalo (BUF) to Washington (IAD) flights: who flies it" description: "United Airlines flies Buffalo (BUF) to Washington (IAD) nonstop about 31 times a week, scheduled at 1h 15m to 1h 29m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/buf-iad" url: "https://2lnr.com/routes/buf-iad.md" date_modified: "2026-10-18T05:10:47Z" --- # Buffalo to Washington (BUF-IAD): nonstop flights and who flies them United Airlines flies nonstop between Buffalo (BUF) and Washington (IAD), roughly 31 times a week. The timetable below shows the nonstop scheduled at 1h 15m to 1h 29m for the 283 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 23, 2026. See BUF to IAD on the interactive map [Get started free](https://2lnr.com/login) 31 Flights a week, 4-week average 1h 15m to 1h 29m Scheduled flight time 283 mi Nonstop distance Free To get started ## Buffalo to Washington flight schedule Scheduled nonstop departures for BUF to IAD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book. Scheduled nonstop departures from Buffalo (BUF) to Washington (IAD) | Date | Flight | Airline | Departs BUF | Arrives IAD | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | UA 4468 | United Airlines | 06:00 | 07:23 | 1h 23m | CR5 | | Thu, Oct 22 | UA 4192 | United Airlines | 10:10 | 11:25 | 1h 15m | CR5 | | Thu, Oct 22 | UA 4291 | United Airlines | 15:05 | 16:25 | 1h 20m | ERJ | | Thu, Oct 22 | UA 4170 | United Airlines | 19:59 | 21:20 | 1h 21m | CR5 | | Fri, Oct 23 | UA 4468 | United Airlines | 06:00 | 07:23 | 1h 23m | CR5 | | Fri, Oct 23 | UA 4192 | United Airlines | 10:10 | 11:25 | 1h 15m | CR5 | | Fri, Oct 23 | UA 4291 | United Airlines | 15:05 | 16:25 | 1h 20m | ERJ | | Fri, Oct 23 | UA 4170 | United Airlines | 19:59 | 21:20 | 1h 21m | CR5 | | Sat, Oct 24 | UA 4192 | United Airlines | 10:10 | 11:25 | 1h 15m | CR5 | | Sat, Oct 24 | UA 4170 | United Airlines | 19:59 | 21:20 | 1h 21m | CR5 | | Sun, Oct 25 | UA 4390 | United Airlines | 06:00 | 07:21 | 1h 21m | CR5 | | Sun, Oct 25 | UA 4935 | United Airlines | 10:20 | 11:41 | 1h 21m | ERJ | | Sun, Oct 25 | UA 4255 | United Airlines | 10:35 | 11:55 | 1h 20m | ERJ | | Sun, Oct 25 | UA 4291 | United Airlines | 15:05 | 16:25 | 1h 20m | ERJ | | Sun, Oct 25 | UA 4270 | United Airlines | 19:59 | 21:18 | 1h 19m | ERJ | | Mon, Oct 26 | UA 4390 | United Airlines | 06:00 | 07:21 | 1h 21m | CR5 | | Mon, Oct 26 | UA 4935 | United Airlines | 10:20 | 11:41 | 1h 21m | ERJ | | Mon, Oct 26 | UA 3991 | United Airlines | 10:35 | 11:55 | 1h 20m | [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md) | | Mon, Oct 26 | UA 4291 | United Airlines | 15:05 | 16:25 | 1h 20m | ERJ | | Mon, Oct 26 | UA 4270 | United Airlines | 19:59 | 21:18 | 1h 19m | ERJ | | Tue, Oct 27 | UA 3700 | United Airlines | 06:00 | 07:29 | 1h 29m | Embraer E175 | | Tue, Oct 27 | UA 4935 | United Airlines | 10:20 | 11:41 | 1h 21m | ERJ | | Tue, Oct 27 | UA 3991 | United Airlines | 10:30 | 11:51 | 1h 21m | Embraer E175 | | Tue, Oct 27 | UA 4255 | United Airlines | 10:35 | 11:55 | 1h 20m | ERJ | | Tue, Oct 27 | UA 4291 | United Airlines | 15:05 | 16:25 | 1h 20m | ERJ | | Wed, Oct 28 | UA 4390 | United Airlines | 06:00 | 07:21 | 1h 21m | CR5 | | Wed, Oct 28 | UA 4935 | United Airlines | 10:20 | 11:41 | 1h 21m | ERJ | | Wed, Oct 28 | UA 3991 | United Airlines | 10:30 | 11:51 | 1h 21m | Embraer E175 | | Wed, Oct 28 | UA 4255 | United Airlines | 10:35 | 11:55 | 1h 20m | ERJ | | Wed, Oct 28 | UA 4291 | United Airlines | 14:55 | 16:21 | 1h 26m | ERJ | Showing all 30 scheduled BUF to IAD departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map. Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure. See every BUF to IAD date on the interactive map ## Aircraft on the Buffalo to Washington nonstop United Airlines flies the departures in the schedule table on this page with the Embraer ERJ, the Bombardier CRJ, and the [Embraer E175](https://2lnr.com/seatmaps/ua/e175.md). Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure. ## The full BUF to IAD nonstop schedule This page carries the full BUF to IAD nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each BUF to IAD nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See BUF to IAD on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Buffalo to Washington nonstop Carriers operating BUF to IAD nonstop in the current schedule. - [United Airlines (UA) route map](https://2lnr.com/routes/airlines/ua.md)\ [The aircraft UA flies](https://2lnr.com/seatmaps/ua.md) See BUF to IAD on the interactive map → ## Frequently asked questions about BUF to IAD **How long is the flight from Buffalo (BUF) to Washington (IAD)?** Scheduled flight times from Buffalo (BUF) to Washington (IAD) run from 1h 15m to 1h 29m across the departures in the schedule table on this page. The nonstop covers about 283 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from BUF to IAD?** United Airlines is currently the only airline flying BUF to IAD nonstop. 2LNR doesn't show award or upgrade space for it on BUF to IAD, so this page carries the schedule rather than a space claim. **How many flights a week are there from BUF to IAD?** About 31 nonstop flights a week run between Buffalo (BUF) and Washington (IAD) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next. **What time do flights from BUF to IAD depart?** Scheduled BUF to IAD nonstops in the next 7 days with service leave between 06:00 and 19:59, local time at Buffalo. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate BUF to IAD nonstop?** The schedule table on this page lists 10 flight numbers for BUF to IAD nonstops, including UA 3991, UA 4170, UA 4192, UA 4255, UA 4291, UA 4390, UA 4468, and UA 4935 on United Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on BUF to IAD?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on BUF to IAD. The page carries the full BUF to IAD nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [IAD to BUF nonstop flights](https://2lnr.com/routes/iad-buf.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Buffalo (BUF)](https://2lnr.com/routes/buf.md), or [every route from Washington (IAD)](https://2lnr.com/routes/iad.md). Nonstops to Washington (IAD) from other airports within 150 miles of Buffalo (BUF): - [Rochester (ROC) to Washington (IAD)](https://2lnr.com/routes/roc-iad.md), 55 miles from BUF - [Toronto (YTZ) to Washington (IAD)](https://2lnr.com/routes/ytz-iad.md), 58 miles from BUF - [Toronto (YYZ) to Washington (IAD)](https://2lnr.com/routes/yyz-iad.md), 68 miles from BUF - [Bradford (BFD) to Washington (IAD)](https://2lnr.com/routes/bfd-iad.md), 79 miles from BUF - [Ithaca (ITH) to Washington (IAD)](https://2lnr.com/routes/ith-iad.md), 119 miles from BUF Nonstops from Buffalo (BUF) to other airports within 150 miles of Washington (IAD): - [Buffalo (BUF) to Washington (DCA)](https://2lnr.com/routes/buf-dca.md), 23 miles from IAD - [Buffalo (BUF) to Philadelphia (PHL)](https://2lnr.com/routes/buf-phl.md), 134 miles from IAD Distances are great-circle between the airports, not driving distance. - [How to plan an upgrade by route](https://2lnr.com/guides/upgrade-strategy.md) ## See the full BUF to IAD nonstop schedule Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro. [Get started free](https://2lnr.com/login)