Santiago to Dulles (STI–IAD) — Airlines, Schedules & Connections
No flights match your filters.
No scheduled airline flights on this route — it's flown by charter / private operators (). No nonstop flights on this route. connecting options below.
Most recently operated nonstop flights — the month shown is when each was last scheduled. Most destinations remain reachable with a connection.
No discontinued nonstop flights on record for this route.
STI–IAD had nonstop service from United Airlines, last on the schedule in August 2026. There's no nonstop on it right now, so today you'd fly it with one stop. The connecting options below are sorted by layover. Nonstop, it's about 1,411 miles in 3h 47m.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines | 1 | – | – | – | Star Alliance | – |
Connection Landscape
On-Time Performance
Other ways to reach Dulles from Santiago
| Metric | STI→IAD | PUJ→IAD |
|---|---|---|
| Distance from STI | – | 157 mi |
| Nonstop airlines | – | 3 |
| Weekly flights | – | 7 |
| Flight time | 3h 47m | 3h 45m |
Travel Essentials
STI: AST · IAD: EDT
When it's 6:00 PM in Santiago, it's 6:00 PM in Dulles.
Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.
Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.
Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.
STI–IAD Quick Facts
Frequently Asked Questions
Flights from STI to IAD
Cibao International Airport (STI) and Washington Dulles International Airport (IAD) had nonstop service from United Airlines, last on the schedule in August 2026. The nonstop is dormant right now, so the way to fly it today is one connection, and the options above are sorted by layover.
STI to IAD Flight Duration and Schedule
Nonstop flight time from STI to IAD is about 3 hours 47 minutes gate to gate. The route covers a distance of 1,411 miles (2,270 km).
Connecting Options and Alternatives
1-stop connecting options are also available, commonly via Orlando, John F. Kennedy and Providenciales. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Punta Cana (PUJ).