1 stop(s) · 7 daysRound trip · EconomyCheck baggage
$414$801
Dec 7 → Dec 14View flight →
Observed Oct 30, 2026, 10:32 p.m. UTC
Flight deals from Washington (IAD) to STI
Washington Dulles (IAD) · United States
1 free-selection deals match your search
Flights matching your search
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Fare freshness and coverage · latest collection Oct 30, 10:32 p.m. UTC
Washington (IAD) : Collection operational · last completed collection Oct 30, 2026, 10:32 p.m. UTC
Filters explore previously collected fares with partial coverage. Google’s reference is a separate estimate from our own price history. Open an offer to see its history.
View observed departures over the next 12 months
From Oct 31 to Oct 30. These counts describe recent offers loaded from Washington (IAD), before your other filters. Zero means no offer appears in this selection for that period; it does not mean no flights exist.
| Departure period | Washington (IAD) |
|---|---|
| Oct 31 → Nov 29 | 0 offer(s) |
| Nov 30 → Dec 30 | 1 offer(s) |
| Dec 31 → Jan 30 | 1 offer(s) |
| Jan 31 → Feb 27 | 0 offer(s) |
| Feb 28 → Mar 30 | 0 offer(s) |
| Mar 31 → Apr 29 | 0 offer(s) |
| Apr 30 → May 30 | 0 offer(s) |
| May 31 → Jun 29 | 0 offer(s) |
| Jun 30 → Jul 30 | 0 offer(s) |
| Jul 31 → Aug 30 | 0 offer(s) |
| Aug 31 → Sep 29 | 0 offer(s) |
| Sep 30 → Oct 30 | 0 offer(s) |
The 12-month search is being validated. Available observations do not yet cover every period, destination or trip length.