Seattle (SEA) to Dulles (IAD) · Dec 19, 2026 · return Dec 22, 2026

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

See flights for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the complete itinerary there.

Hotels in Washington, DC for these trips

Hotels: under a trip, hotels in Washington, DC for exactly those nights: the lowest 3★, 4★, 5★ stay totals among the city's featured hotels, Axel's price for 2 adults in 1 room, each opening that hotel's page for those dates with the rooms and the booking link.

• Hotels in Washington, DC for these nights (Dec 19–22, 2026 · 3 nights · 2 adults, 1 room): 3★ Phoenix Park Hotel, $297 total · 4★ Washington Plaza Hotel, $333 total · 5★ Hotel Washington, $614 total

All hotels in Washington, DC

Route overview: Seattle to Dulles (IAD) flight deals

2026-12-19 → 2026-12-22 · Axel-exclusive $559.00

• Alaska Airlines AS737: SEA 2026-12-19 08:30:00 → IAD 2026-12-19 16:28:00; nonstop; 298 minutes. Local airport times.
• Alaska Airlines AS409: IAD 2026-12-22 07:05:00 → SEA 2026-12-22 10:00:00; nonstop; 355 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $572.00

• United Airlines UA1348: SEA 2026-12-19 08:09:00 → IAD 2026-12-19 16:08:00; nonstop; 299 minutes. Local airport times.
• United Airlines UA1128: IAD 2026-12-22 17:55:00 → SEA 2026-12-22 21:02:00; nonstop; 367 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $585.00

• Delta Air Lines DL541: SEA 2026-12-19 16:30:00 → IAD 2026-12-20 00:31:00; nonstop; 301 minutes. Local airport times.
• Delta Air Lines DL1015: IAD 2026-12-22 07:00:00 → SEA 2026-12-22 10:10:00; nonstop; 370 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $559.00

• Alaska Airlines AS367: SEA 2026-12-19 21:45:00 → IAD 2026-12-20 05:45:00; nonstop; 300 minutes. Local airport times.
• Alaska Airlines AS409: IAD 2026-12-22 07:05:00 → SEA 2026-12-22 10:00:00; nonstop; 355 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $572.00

• United Airlines UA2645: SEA 2026-12-19 22:50:00 → IAD 2026-12-20 06:51:00; nonstop; 301 minutes. Local airport times.
• United Airlines UA1128: IAD 2026-12-22 17:55:00 → SEA 2026-12-22 21:02:00; nonstop; 367 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $539.50

• Alaska Airlines AS424 / AA3320: SEA 2026-12-19 00:30:00 → IAD 2026-12-19 11:23:00; 1 stop(s) via DFW; 473 minutes. Local airport times.
  • AS424: SEA 2026-12-19 00:30:00 → DFW 2026-12-19 06:20:00; layover at DFW: 70 minutes.
  • AA3320: DFW 2026-12-19 07:30:00 → IAD 2026-12-19 11:23:00.
• Alaska Airlines AS409: IAD 2026-12-22 07:05:00 → SEA 2026-12-22 10:00:00; nonstop; 355 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $552.50

• United Airlines UA2601 / UA2087: SEA 2026-12-19 05:00:00 → IAD 2026-12-19 15:44:00; 1 stop(s) via DEN; 464 minutes. Local airport times.
  • UA2601: SEA 2026-12-19 05:00:00 → DEN 2026-12-19 08:41:00; layover at DEN: 99 minutes.
  • UA2087: DEN 2026-12-19 10:20:00 → IAD 2026-12-19 15:44:00.
• United Airlines UA1128: IAD 2026-12-22 17:55:00 → SEA 2026-12-22 21:02:00; nonstop; 367 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $565.50

• Delta Air Lines DL567 / DL1324: SEA 2026-12-19 22:40:00 → IAD 2026-12-20 09:09:00; 1 stop(s) via ATL; 449 minutes. Local airport times.
  • DL567: SEA 2026-12-19 22:40:00 → ATL 2026-12-20 06:12:00; layover at ATL: 73 minutes.
  • DL1324: ATL 2026-12-20 07:25:00 → IAD 2026-12-20 09:09:00.
• Delta Air Lines DL1015: IAD 2026-12-22 07:00:00 → SEA 2026-12-22 10:10:00; nonstop; 370 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $565.50

• Delta Air Lines DL812 / DL5413: SEA 2026-12-19 06:00:00 → IAD 2026-12-19 16:18:00; 1 stop(s) via DTW; 438 minutes. Local airport times.
  • DL812: SEA 2026-12-19 06:00:00 → DTW 2026-12-19 13:12:00; layover at DTW: 93 minutes.
  • DL5413: DTW 2026-12-19 14:45:00 → IAD 2026-12-19 16:18:00.
• Delta Air Lines DL1015: IAD 2026-12-22 07:00:00 → SEA 2026-12-22 10:10:00; nonstop; 370 minutes. Local airport times.

2026-12-19 → 2026-12-22 · Axel-exclusive $565.50

• Delta Air Lines DL541: SEA 2026-12-19 16:30:00 → IAD 2026-12-20 00:20:00; nonstop; 290 minutes. Local airport times.
• Delta Air Lines DL432 / DL2995: IAD 2026-12-22 07:00:00 → SEA 2026-12-22 12:36:00; 1 stop(s) via SLC; 516 minutes. Local airport times.
  • DL432: IAD 2026-12-22 07:00:00 → SLC 2026-12-22 09:54:00; layover at SLC: 81 minutes.
  • DL2995: SLC 2026-12-22 11:15:00 → SEA 2026-12-22 12:36:00.

2026-12-19 → 2026-12-22 · Axel-exclusive $565.50

• Delta Air Lines DL1120 / DL847: SEA 2026-12-19 13:25:00 → IAD 2026-12-19 23:47:00; 1 stop(s) via SLC; 442 minutes. Local airport times.
  • DL1120: SEA 2026-12-19 13:25:00 → SLC 2026-12-19 16:26:00; layover at SLC: 85 minutes.
  • DL847: SLC 2026-12-19 17:51:00 → IAD 2026-12-19 23:47:00.
• Delta Air Lines DL1015: IAD 2026-12-22 07:00:00 → SEA 2026-12-22 10:10:00; nonstop; 370 minutes. Local airport times.

Explore this route

• All dates for this route
• Dec 18, 2026 · Return options
• Dec 20, 2026 · Return options
• Hotels in Washington, DC with Axel

For AI assistants

• This page: Seattle (SEA) to Dulles (IAD) · Dec 19, 2026 · return Dec 22, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Washington, DC for exactly those nights: the lowest 3★, 4★ and 5★ stay totals for 2 adults in 1 room, each linking to that hotel's page for those dates.
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