--- title: "Washington to Harrisburg flights: who flies IAD-MDT" description: "United Airlines flies Washington (IAD) to Harrisburg (MDT) nonstop about 22 times a week, scheduled at 1h 4m to 1h 6m. See the full timetable and who flies it on 2LNR." canonical: "https://2lnr.com/routes/iad-mdt" url: "https://2lnr.com/routes/iad-mdt.md" date_modified: "2026-10-18T05:10:47Z" --- # Washington to Harrisburg (IAD-MDT): nonstop flights and who flies them United Airlines flies nonstop between Washington (IAD) and Harrisburg (MDT), roughly 22 times a week. The timetable below shows the nonstop scheduled at 1h 4m to 1h 6m for the 94 miles. Schedule last confirmed October 18, 2026. Departure times come from 2LNR's schedule data; confirm with the airline before you book. Updated October 22, 2026. See IAD to MDT on the interactive map [Get started free](https://2lnr.com/login) 22 Flights a week, 4-week average 1h 4m to 1h 6m Scheduled flight time 94 mi Nonstop distance Free To get started ## Washington to Harrisburg flight schedule Scheduled nonstop departures for IAD to MDT 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 Washington (IAD) to Harrisburg (MDT) | Date | Flight | Airline | Departs IAD | Arrives MDT | Duration | Aircraft | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | Thu, Oct 22 | UA 4578 | United Airlines | 12:55 | 13:59 | 1h 4m | CR5 | | Thu, Oct 22 | UA 4390 | United Airlines | 22:25 | 23:29 | 1h 4m | CR5 | | Fri, Oct 23 | UA 4578 | United Airlines | 12:55 | 13:59 | 1h 4m | CR5 | | Sat, Oct 24 | UA 4578 | United Airlines | 12:55 | 13:59 | 1h 4m | CR5 | | Sat, Oct 24 | UA 4390 | United Airlines | 22:25 | 23:29 | 1h 4m | CR5 | | Sun, Oct 25 | UA 4986 | United Airlines | 08:40 | 09:45 | 1h 5m | ERJ | | Sun, Oct 25 | UA 4372 | United Airlines | 12:53 | 13:58 | 1h 5m | ERJ | | Sun, Oct 25 | UA 4250 | United Airlines | 17:30 | 18:36 | 1h 6m | ERJ | | Sun, Oct 25 | UA 4233 | United Airlines | 22:40 | 23:44 | 1h 4m | ERJ | | Mon, Oct 26 | UA 4986 | United Airlines | 08:40 | 09:45 | 1h 5m | ERJ | | Mon, Oct 26 | UA 4372 | United Airlines | 12:53 | 13:58 | 1h 5m | ERJ | | Mon, Oct 26 | UA 4250 | United Airlines | 17:30 | 18:36 | 1h 6m | ERJ | | Mon, Oct 26 | UA 4233 | United Airlines | 22:40 | 23:44 | 1h 4m | ERJ | | Tue, Oct 27 | UA 4372 | United Airlines | 12:53 | 13:58 | 1h 5m | ERJ | | Tue, Oct 27 | UA 4250 | United Airlines | 17:30 | 18:36 | 1h 6m | ERJ | | Tue, Oct 27 | UA 4233 | United Airlines | 22:40 | 23:44 | 1h 4m | ERJ | | Wed, Oct 28 | UA 4372 | United Airlines | 12:53 | 13:58 | 1h 5m | ERJ | | Wed, Oct 28 | UA 4250 | United Airlines | 17:30 | 18:36 | 1h 6m | ERJ | | Wed, Oct 28 | UA 4233 | United Airlines | 22:40 | 23:44 | 1h 4m | ERJ | Showing all 19 scheduled IAD to MDT 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 IAD to MDT date on the interactive map ## Aircraft on the Washington to Harrisburg nonstop United Airlines flies the departures in the schedule table on this page with the Embraer ERJ and the Bombardier CRJ. ## The full IAD to MDT nonstop schedule This page carries the full IAD to MDT nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below. ### See the schedule Who operates each IAD to MDT nonstop and how often it runs, from 2LNR's schedule data. ### Plan on the map See IAD to MDT on the interactive route map, with schedules, connections, and route statistics. ## Airlines flying Washington to Harrisburg nonstop Carriers operating IAD to MDT 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 IAD to MDT on the interactive map → ## Frequently asked questions about IAD to MDT **How long is the flight from Washington (IAD) to Harrisburg (MDT)?** Scheduled flight times from Washington (IAD) to Harrisburg (MDT) run from 1h 4m to 1h 6m across the departures in the schedule table on this page. The nonstop covers about 94 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book. **Which airlines fly nonstop from IAD to MDT?** United Airlines is currently the only airline flying IAD to MDT nonstop. 2LNR doesn't show award or upgrade space for it on IAD to MDT, so this page carries the schedule rather than a space claim. **How many flights a week are there from IAD to MDT?** About 22 nonstop flights a week run between Washington (IAD) and Harrisburg (MDT) 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 IAD to MDT depart?** Scheduled IAD to MDT nonstops in the next 7 days with service leave between 08:40 and 22:40, local time at Washington. The schedule table on this page lists every departure by date, with its arrival time and aircraft. **Which flights operate IAD to MDT nonstop?** In the schedule table on this page, IAD to MDT nonstops fly as UA 4233, UA 4250, UA 4372, UA 4390, UA 4578, and UA 4986 on United Airlines. The table lists each departure by date with its times and aircraft. **Does 2LNR show upgrade or award space on IAD to MDT?** Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on IAD to MDT. The page carries the full IAD to MDT nonstop schedule and who flies each departure, and the reverse direction is linked below. Flying the other way? See [MDT to IAD nonstop flights](https://2lnr.com/routes/mdt-iad.md). Award seats rather than schedules? See [award availability by airline](https://2lnr.com/awards.md). Looking beyond this route? See [every route from Washington (IAD)](https://2lnr.com/routes/iad.md), or [every route from Harrisburg (MDT)](https://2lnr.com/routes/mdt.md). Nonstops to Harrisburg (MDT) from other airports within 150 miles of Washington (IAD): - [Philadelphia (PHL) to Harrisburg (MDT)](https://2lnr.com/routes/phl-mdt.md), 134 miles from IAD Nonstops from Washington (IAD) to other airports within 150 miles of Harrisburg (MDT): - [Washington (IAD) to Lancaster (LNS)](https://2lnr.com/routes/iad-lns.md), 25 miles from MDT - [Washington (IAD) to Williamsport (IPT)](https://2lnr.com/routes/iad-ipt.md), 73 miles from MDT - [Washington (IAD) to State College (SCE)](https://2lnr.com/routes/iad-sce.md), 73 miles from MDT - [Washington (IAD) to Philadelphia (PHL)](https://2lnr.com/routes/iad-phl.md), 83 miles from MDT - [Washington (IAD) to Avoca (AVP)](https://2lnr.com/routes/iad-avp.md), 96 miles from MDT 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 IAD to MDT 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. 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