Airport hubs · IAD + DCA
Washington’s two-airport system set a combined record in 2025: 53.9 million passengers. Inside the number is a reversal — Dulles hit all-time highs (29.01 million total, +6.4%; a record 10.53 million international) while Reagan National fell 5.3% to 24.89 million, its lowest in three years, after a January mid-air collision, a seven-week government shutdown and DOGE-era cuts to federal travel.
Dulles’ 2025 was the year United Airlines started calling the period the “Decade of Dulles.” The airport added two carriers (Royal Jordanian, Contour) and six destinations, ended the year with 46 airlines flying 340+ daily departures to 164 destinations, and posted double records: 29.01 million total passengers and 10.53 million international — the latter now 36% of traffic, a gateway share no other Washington airport can approach.
The infrastructure is catching up: a 435,000-square-foot, 14-gate concourse opens in fall 2026 with direct access to the AeroTrain and 15+ new concessions, the first piece of a master plan meant to finally retire the mobile-lounge era. April 2025 already stress-tested the system — TSA screened a record 44,763 passengers on 11 April, part of a four-day run that filled the airport’s top-ten busiest days.
Reagan National’s 24.89 million is still above pre-pandemic levels — but the 5.3% slide from 2024’s record 26.29 million tells the year’s story. A fatal helicopter-jet collision in January brought weeks of flight restrictions; a seven-week federal shutdown froze the government travel that is DCA’s core market; and DOGE-era downsizing shrank the federal workforce whose meetings fill its weekday peaks. Eight airlines and 400+ daily departures to 108 destinations remain, and MWAA’s 2026 budget assumes modest recovery.
The TIO framing: watch the split, not the sum. Washington’s aviation is bifurcating — international and long-haul growth concentrating at Dulles, domestic-political traffic wobbling at National. The 2026 test is whether DCA’s convenience premium (the Metro-connected airport 15 minutes from the Mall) survives a federal government that now travels less. Dulles, with its record international engine, no longer needs the answer to be yes.
The TIO Read: Washington’s airports are a natural experiment in demand composition. Same metro, same year: Dulles +6.4% to all-time records, National −5.3% to a three-year low — the difference is what each airport sells. Dulles sells the world (10.5M international passengers, growing); National sells the federal government (shrinking, by policy). The system record of 53.9 million proves the region’s underlying demand is intact. Watch the fall 2026 concourse opening at Dulles and DCA’s government-fare recovery through the America250 summer. If Washington ends 2026 with both airports growing, the capital’s aviation market has fully re-priced away from federal dependency — the same story its hotels are trying to write.
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