Washington to Boston (IAD-BOS): nonstop flights and who flies them

United Airlines flies nonstop between Washington (IAD) and Boston (BOS), roughly 29 times a week. The timetable below shows the nonstop scheduled at 1h 42m to 1h 51m for the 411 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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29
Flights a week, 4-week average
1h 42m to 1h 51m
Scheduled flight time
411 mi
Nonstop distance
Free
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Washington to Boston flight schedule

Scheduled nonstop departures for IAD to BOS 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.

Schedule data dated .

Scheduled nonstop departures from Washington (IAD) to Boston (BOS)
Date Flight Airline Departs IAD Arrives BOS Duration Aircraft
UA 641United Airlines08:5010:321h 42mBoeing 737 MAX 9
UA 1392United Airlines13:1014:551h 45mBoeing 737 MAX 9
UA 3503United Airlines15:0916:591h 50mEmbraer E175
UA 688United Airlines17:1519:061h 51mBoeing 737-900
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 9
UA 641United Airlines08:5010:321h 42mBoeing 737 MAX 9
UA 1392United Airlines13:1014:551h 45mBoeing 737 MAX 9
UA 3503United Airlines15:0916:591h 50mEmbraer E175
UA 688United Airlines17:1519:061h 51mBoeing 737-900
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 9
UA 641United Airlines08:5010:321h 42mBoeing 737 MAX 9
UA 1392United Airlines13:0514:501h 45mBoeing 737 MAX 9
UA 688United Airlines17:2819:191h 51mBoeing 737-900
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 9
UA 641United Airlines08:3510:181h 43mBoeing 737 MAX 9
UA 1392United Airlines13:1014:551h 45mBoeing 737 MAX 9
UA 688United Airlines17:1518:571h 42mBoeing 737 MAX 8
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 8
UA 641United Airlines08:3510:181h 43mBoeing 737 MAX 9
UA 1392United Airlines13:1014:551h 45mBoeing 737 MAX 9
UA 688United Airlines17:1518:571h 42mBoeing 737 MAX 8
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 9
UA 641United Airlines08:3510:181h 43mBoeing 737 MAX 9
UA 1392United Airlines13:0514:501h 45mBoeing 737 MAX 9
UA 688United Airlines17:1518:571h 42mBoeing 737 MAX 8
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 8
UA 641United Airlines08:3510:181h 43mBoeing 737 MAX 9
UA 1392United Airlines12:5014:321h 42mBoeing 737 MAX 9
UA 688United Airlines17:1518:571h 42mBoeing 737 MAX 8
UA 755United Airlines22:1523:591h 44mBoeing 737 MAX 8

Showing all 30 scheduled IAD to BOS 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 BOS date on the interactive map

Aircraft on the Washington to Boston nonstop

United Airlines flies the departures in the schedule table on this page with the Boeing 737 MAX 9, the Boeing 737 MAX 8, the Boeing 737-900, and the Embraer E175. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full IAD to BOS nonstop schedule

This page carries the full IAD to BOS 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 BOS nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See IAD to BOS on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Washington to Boston nonstop

Carriers operating IAD to BOS nonstop in the current schedule.

See IAD to BOS on the interactive map →

Frequently asked questions about IAD to BOS

How long is the flight from Washington (IAD) to Boston (BOS)?
Scheduled flight times from Washington (IAD) to Boston (BOS) run from 1h 42m to 1h 51m across the departures in the schedule table on this page. The nonstop covers about 411 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from IAD to BOS?
United Airlines is currently the only airline flying IAD to BOS nonstop. 2LNR doesn't show award or upgrade space for it on IAD to BOS, so this page carries the schedule rather than a space claim.
How many flights a week are there from IAD to BOS?
About 29 nonstop flights a week run between Washington (IAD) and Boston (BOS) 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 BOS depart?
Scheduled IAD to BOS nonstops in the next 7 days with service leave between 08:35 and 22:15, 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 BOS nonstop?
In the schedule table on this page, IAD to BOS nonstops fly as UA 641, UA 688, UA 755, UA 1392, and UA 3503 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 BOS?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on IAD to BOS. The page carries the full IAD to BOS nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full IAD to BOS 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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