Washington (DCA) to Seattle (SEA) · Nov 7, 2026 · return Nov 21, 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

2026-11-07 → 2026-11-21 · Axel-exclusive $488.75

• Alaska Airlines AS1: DCA 2026-11-07 08:00:00 → SEA 2026-11-07 11:17:00; nonstop; 377 minutes. Local airport times.
• Alaska Airlines AS4: SEA 2026-11-21 08:00:00 → DCA 2026-11-21 16:20:00; nonstop; 320 minutes. Local airport times.

2026-11-07 → 2026-11-21 · Axel-exclusive $511.75

• Delta Air Lines DL786: DCA 2026-11-07 17:10:00 → SEA 2026-11-07 20:31:00; nonstop; 381 minutes. Local airport times.
• Delta Air Lines DL786: SEA 2026-11-21 07:20:00 → DCA 2026-11-21 15:06:00; nonstop; 286 minutes. Local airport times.

2026-11-07 → 2026-11-21 · Axel-exclusive $448.50

• American Airlines AA4720 / AS500: DCA 2026-11-07 14:25:00 → SEA 2026-11-07 20:11:00; 1 stop(s) via IND; 526 minutes. Local airport times.
  • AA4720: DCA 2026-11-07 14:25:00 → IND 2026-11-07 16:27:00; layover at IND: 100 minutes.
  • AS500: IND 2026-11-07 18:07:00 → SEA 2026-11-07 20:11:00.
• American Airlines AA294 / AA461: SEA 2026-11-21 23:36:00 → DCA 2026-11-22 10:00:00; 1 stop(s) via ORD; 444 minutes. Local airport times.
  • AA294: SEA 2026-11-21 23:36:00 → ORD 2026-11-22 05:42:00; layover at ORD: 74 minutes.
  • AA461: ORD 2026-11-22 06:56:00 → DCA 2026-11-22 10:00:00.

2026-11-07 → 2026-11-21 · Axel-exclusive $489.25

• United Airlines UA1793 / UA2099: DCA 2026-11-07 06:25:00 → SEA 2026-11-07 12:19:00; 1 stop(s) via ORD; 534 minutes. Local airport times.
  • UA1793: DCA 2026-11-07 06:25:00 → ORD 2026-11-07 07:43:00; layover at ORD: 102 minutes.
  • UA2099: ORD 2026-11-07 09:25:00 → SEA 2026-11-07 12:19:00.
• Delta Air Lines DL786: SEA 2026-11-21 07:20:00 → DCA 2026-11-21 15:06:00; nonstop; 286 minutes. Local airport times.

2026-11-07 → 2026-11-21 · Axel-exclusive $437.00

• Alaska Airlines AS9 / AS1432: DCA 2026-11-07 17:20:00 → SEA 2026-11-07 23:00:00; 1 stop(s) via PDX; 520 minutes. Local airport times.
  • AS9: DCA 2026-11-07 17:20:00 → PDX 2026-11-07 20:16:00; layover at PDX: 103 minutes.
  • AS1432: PDX 2026-11-07 21:59:00 → SEA 2026-11-07 23:00:00.
• Alaska Airlines AS264 / AA4626: SEA 2026-11-21 22:59:00 → DCA 2026-11-22 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
  • AS264: SEA 2026-11-21 22:59:00 → IND 2026-11-22 06:03:00; layover at IND: 83 minutes.
  • AA4626: IND 2026-11-22 07:26:00 → DCA 2026-11-22 09:20:00.

2026-11-07 → 2026-11-21 · Axel-exclusive $459.50

• Alaska Airlines AS1: DCA 2026-11-07 08:00:00 → SEA 2026-11-07 10:55:00; nonstop; 355 minutes. Local airport times.
• Alaska Airlines AS264 / AA4626: SEA 2026-11-21 22:59:00 → DCA 2026-11-22 09:20:00; 1 stop(s) via IND; 441 minutes. Local airport times.
  • AS264: SEA 2026-11-21 22:59:00 → IND 2026-11-22 06:03:00; layover at IND: 83 minutes.
  • AA4626: IND 2026-11-22 07:26:00 → DCA 2026-11-22 09:20:00.

2026-11-07 → 2026-11-21 · Axel-exclusive $485.75

• Delta Air Lines DL786: DCA 2026-11-07 16:25:00 → SEA 2026-11-07 19:27:00; nonstop; 362 minutes. Local airport times.
• Delta Air Lines DL942 / DL2961: SEA 2026-11-21 13:50:00 → DCA 2026-11-21 23:57:00; 1 stop(s) via MSP; 427 minutes. Local airport times.
  • DL942: SEA 2026-11-21 13:50:00 → MSP 2026-11-21 19:11:00; layover at MSP: 74 minutes.
  • DL2961: MSP 2026-11-21 20:25:00 → DCA 2026-11-21 23:57:00.

2026-11-07 → 2026-11-21 · Axel-exclusive $491.75

• Delta Air Lines DL1558 / DL728: DCA 2026-11-07 09:45:00 → SEA 2026-11-07 14:55:00; 1 stop(s) via DTW; 490 minutes. Local airport times.
  • DL1558: DCA 2026-11-07 09:45:00 → DTW 2026-11-07 11:22:00; layover at DTW: 91 minutes.
  • DL728: DTW 2026-11-07 12:53:00 → SEA 2026-11-07 14:55:00.
• Delta Air Lines DL786: SEA 2026-11-21 07:20:00 → DCA 2026-11-21 15:06:00; nonstop; 286 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
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