Dulles (IAD) to Seattle (SEA) · Nov 27, 2026 · return Dec 1, 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.

Route overview: Washington, DC to Seattle (SEA) flight deals

2026-11-27 → 2026-12-01 · Axel-exclusive $414.00

• Alaska Airlines AS737: IAD 2026-11-27 17:18:00 → SEA 2026-11-27 20:27:00; nonstop; 369 minutes. Local airport times.
• Alaska Airlines AS737: SEA 2026-12-01 08:15:00 → IAD 2026-12-01 16:15:00; nonstop; 300 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $437.00

• Delta Air Lines DL1015: IAD 2026-11-27 07:00:00 → SEA 2026-11-27 10:05:00; nonstop; 365 minutes. Local airport times.
• Delta Air Lines DL541: SEA 2026-12-01 16:30:00 → IAD 2026-12-02 00:20:00; nonstop; 290 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $448.50

• United Airlines UA2731: IAD 2026-11-27 08:50:00 → SEA 2026-11-27 11:57:00; nonstop; 367 minutes. Local airport times.
• United Airlines UA672: SEA 2026-12-01 08:09:00 → IAD 2026-12-01 16:08:00; nonstop; 299 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $359.00

• Sun Country Airlines SY668 / SY285: IAD 2026-11-27 12:44:00 → SEA 2026-11-27 17:17:00; 1 stop(s) via MSP; 453 minutes. Local airport times.
  • SY668: IAD 2026-11-27 12:44:00 → MSP 2026-11-27 14:21:00; layover at MSP: 64 minutes.
  • SY285: MSP 2026-11-27 15:25:00 → SEA 2026-11-27 17:17:00.
• Delta Air Lines DL541: SEA 2026-12-01 16:30:00 → IAD 2026-12-02 00:20:00; nonstop; 290 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $414.00

• Alaska Airlines AS409: IAD 2026-11-27 07:00:00 → SEA 2026-11-27 10:05:00; nonstop; 365 minutes. Local airport times.
• Alaska Airlines AS737: SEA 2026-12-01 08:15:00 → IAD 2026-12-01 16:15:00; nonstop; 300 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $448.50

• United Airlines UA1128: IAD 2026-11-27 17:50:00 → SEA 2026-11-27 20:56:00; nonstop; 366 minutes. Local airport times.
• United Airlines UA672: SEA 2026-12-01 08:09:00 → IAD 2026-12-01 16:08:00; nonstop; 299 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $417.50

• Delta Air Lines DL432 / DL2995: IAD 2026-11-27 07:00:00 → SEA 2026-11-27 12:36:00; 1 stop(s) via SLC; 516 minutes. Local airport times.
  • DL432: IAD 2026-11-27 07:00:00 → SLC 2026-11-27 09:54:00; layover at SLC: 81 minutes.
  • DL2995: SLC 2026-11-27 11:15:00 → SEA 2026-11-27 12:36:00.
• Delta Air Lines DL541: SEA 2026-12-01 16:30:00 → IAD 2026-12-02 00:20:00; nonstop; 290 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $422.00

• Delta Air Lines DL1015: IAD 2026-11-27 07:00:00 → SEA 2026-11-27 10:10:00; nonstop; 370 minutes. Local airport times.
• Delta Air Lines DL1120 / DL847: SEA 2026-12-01 13:25:00 → IAD 2026-12-01 23:47:00; 1 stop(s) via SLC; 442 minutes. Local airport times.
  • DL1120: SEA 2026-12-01 13:25:00 → SLC 2026-12-01 16:26:00; layover at SLC: 85 minutes.
  • DL847: SLC 2026-12-01 17:51:00 → IAD 2026-12-01 23:47:00.

2026-11-27 → 2026-12-01 · Axel-exclusive $422.50

• United Airlines UA1359 / UA1330: IAD 2026-11-27 06:10:00 → SEA 2026-11-27 13:01:00; 1 stop(s) via EWR; 591 minutes. Local airport times.
  • UA1359: IAD 2026-11-27 06:10:00 → EWR 2026-11-27 07:28:00; layover at EWR: 132 minutes.
  • UA1330: EWR 2026-11-27 09:40:00 → SEA 2026-11-27 13:01:00.
• United Airlines UA672: SEA 2026-12-01 08:09:00 → IAD 2026-12-01 16:08:00; nonstop; 299 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $422.50

• United Airlines UA565 / UA2099: IAD 2026-11-27 06:10:00 → SEA 2026-11-27 12:19:00; 1 stop(s) via ORD; 549 minutes. Local airport times.
  • UA565: IAD 2026-11-27 06:10:00 → ORD 2026-11-27 07:32:00; layover at ORD: 113 minutes.
  • UA2099: ORD 2026-11-27 09:25:00 → SEA 2026-11-27 12:19:00.
• United Airlines UA672: SEA 2026-12-01 08:09:00 → IAD 2026-12-01 16:08:00; nonstop; 299 minutes. Local airport times.

2026-11-27 → 2026-12-01 · Axel-exclusive $422.50

• United Airlines UA792 / UA2302: IAD 2026-11-27 08:15:00 → SEA 2026-11-27 13:35:00; 1 stop(s) via DEN; 500 minutes. Local airport times.
  • UA792: IAD 2026-11-27 08:15:00 → DEN 2026-11-27 10:27:00; layover at DEN: 63 minutes.
  • UA2302: DEN 2026-11-27 11:30:00 → SEA 2026-11-27 13:35:00.
• United Airlines UA672: SEA 2026-12-01 08:09:00 → IAD 2026-12-01 16:08:00; nonstop; 299 minutes. Local airport times.

Travelers: prices on this page are totals for 1 adult. For a different party, open this trip for 2 adults · 3 adults · 4 adults · 2 adults + 1 child · 2 adults + 2 children; each link opens AI flight search for these dates and those travelers, and the customer link to share comes from those results.

Explore this route

• All dates for this route
• Nov 26, 2026 · Return options
• Nov 28, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

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