Route guide

Boston to Washington (BOS-IAD): Nonstop Upgrade & Award Space

United Airlines flies nonstop between Boston (BOS) and Washington (IAD), roughly 40 times a week. With United Airlines operating this route so often, premium seats still turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every BOS to IAD departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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40
Nonstop flights a week
411 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every BOS to IAD departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Boston to Washington to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each BOS to IAD departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

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

Airlines flying Boston to Washington nonstop

Carriers operating BOS to IAD nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • United Airlines
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Frequently asked questions about BOS to IAD

How far is Washington from Boston?
BOS to IAD covers about 411 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from BOS to IAD?
United Airlines is currently the only airline flying BOS to IAD nonstop. 2LNR tracks confirmed upgrade and award space on every United Airlines departure.
How many flights a week are there from BOS to IAD?
About 40 nonstop flights a week run between Boston and Washington in the current schedule, operated by United Airlines. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on BOS to IAD?
Open the BOS to IAD calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Boston to Washington route, and 2LNR will notify you when space opens. It's free to start.

Never miss BOS to IAD upgrade or award space

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