What United Is Building at IAD

A 435,000 sq ft midfield concourse built by MWAA and occupied entirely by United: 14 gates sized for both narrowbody and widebody aircraft, a food court and new concessions, and a direct AeroTrain connection. United and MWAA unveiled it on November 9, 2026 and said it opens to travelers November 10; on November 10 Edward Russell's Airport Architecture newsletter reported it open, with a Tuesday-morning departure to Chicago and only three scheduled departures (Chicago, Tokyo, Frankfurt) on opening day. It got there late: MWAA floated September in mid-July, its board heard on September 16 that the opening would slip into October, and October passed with MWAA's October 13 fact sheet saying only 'fall 2026.' United calls it the first of four planned Concourse E phases. The published cost keeps drifting — United's 2024 announcement said more than half a billion dollars, 2026 grant coverage put phase 1 near $900M, and September coverage says $700M — so we don't print a single number.

United's new flagship Dulles club: nearly 40,000 sq ft above the AeroTrain escalators, across from gates E14 and E16, with seating for more than 600 — United's second-largest club after Houston's, and in United's words one of the largest airline clubs in the Western Hemisphere. United says it raises its club and lounge space at Dulles by about 70%. The design riffs on L'Enfant's DC street grid ('there's no cul-de-sacs, there's no dead ends anywhere,' per United's club chief). Buffet and bar, no showers; open daily 5:30 a.m. to 10 p.m. Its open status rests on this: United and MWAA said on November 9 that the club opens with the concourse on November 10, 2026 (after the same slips, from late September into October and then past it), and reports written that day and after confirm the concourse opened. AFAR wrote on November 11 that the new club 'joins three existing United lounges and a Polaris lounge at Dulles,' but no report we found describes guests in the club on its first day.

The three existing C/D clubs stay open after Concourse E debuts, and United says they'll 'evolve' with renovations as the wider Dulles redevelopment progresses. No scope, budget, or timeline published — announced in the loosest sense.

Upgraded from rumor on July 29, 2026: the officially unveiled Dulles master plan includes 'more United Club space and plans for one of the largest United Polaris lounges in the world.' No size, date, or location yet — and note the evolution: Kirby's April tease ('It'll be a big club') was a United Club; the official language is Polaris. Inside a decade-long program, 'plans for' is a direction, not a construction schedule.

Officially unveiled July 29, 2026: a more-than-$20B transformation — up from the $7B previously allocated — adding or renovating some 5 million sq ft over the next decade. Replaces the 1980s C/D concourses, expands the AeroTrain and retires the mobile lounges, adds a central walking tunnel from the Saarinen terminal, a new customs facility, more gates (Concourse E's next phase reportedly starts ~2028), and more lounge space. MWAA finances much of it through municipal bonds; phases and dates beyond Concourse E are not yet scheduled.