Allegiant · IAD
What gates does Allegiant use at Washington Dulles Airport (IAD)?
Allegiant uses gates 66 and B66 at Washington Dulles Airport (IAD), mainly in Concourse B, with about 1 departure a day (Oct 3–21, 2026).
Based on 44 Allegiant flights at IAD, Oct 3–21, 2026 (full days)
How Allegiant compares at IAD
- 31st of the 46 airlines with regular flights at IAD by departures: under 1% of them (1 departure a day of about 355 a day).
- 0% of the seats leaving IAD: about 177 a day, 177 per departure.
- Median turn at the gate: 49 min, 34 min shorter than the airport median (83 min).
- At IAD, Allegiant’s 1 departure a day compares with Virgin Atlantic’s 1 and SWISS’s 1.
Where Allegiant flies nonstop from IAD
4 nonstop destinations. Nonstop routes seen Oct 3–21, 2026; a few days of data can miss weekly or seasonal routes.
| Destination | Flights | Other airlines on this route |
|---|---|---|
| KnoxvilleTYS | 1-2/week | United (4/day) |
| Punta GordaPGD | 1-2/week | none seen |
| SarasotaSRQ | 1-2/week | none seen |
| Destin/Fort Walton BeachVPS | 1-2/week | none seen |
When Allegiant flies at IAD
- Flies on some days only: seen on Mondays, Thursdays, Fridays and Sundays (10 of the 19 full days collected).
Allegiant’s aircraft at IAD
| Aircraft | Departures | Seats each |
|---|---|---|
| A320 | 4-5/week | 186 |
| A319 | 2-3/week | 156 |
About 177 seats leave IAD on Allegiant each day. Seats are capacity from each airline’s seat map per aircraft type, not passengers.
Allegiant’s gates at IAD
Gates it shares
| Gate | Who holds it | Other airlines there |
|---|---|---|
| 66 | Too few flights yet | – |
| B66 | Common use | American |
About this data
Based on 19 full days of flights at IAD, Oct 3–21, 2026. Gates of its own are the gates where Allegiant flies the most (regional partners count as their brand). Every one of its departures has a seat count.
Allegiant at IAD: questions
What terminal is Allegiant at Washington Dulles Airport (IAD)?
Allegiant flies from Concourse B at Washington Dulles Airport (IAD).
What gates does Allegiant use at IAD?
66 and B66, gates it shares with other airlines (Oct 3–21, 2026).
How many flights a day does Allegiant have from IAD?
About 1 departure a day and 177 seats, averaged over Oct 3–21, 2026.
Where does Allegiant fly nonstop from IAD?
Allegiant flies nonstop to 4 cities from IAD, the most often to Knoxville, Punta Gorda, Sarasota and Destin/Fort Walton Beach. Routes seen Oct 3–21, 2026.
Does Allegiant share gates at IAD?
Yes: 2 gates it uses are shared or used most by another airline, e.g. gate 66.
Other airlines at IAD
All of IAD’s gates by airline · Allegiant at every airport we map · Nonstop routes from IAD