Chicago (MDW) to Seattle (SEA) · Dec 11, 2026 · return Dec 16, 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: Chicago to Seattle (SEA) flight deals

2026-12-11 → 2026-12-16 · Axel-exclusive $290.00

• Southwest Airlines WN3032: MDW 2026-12-11 22:30:00 → SEA 2026-12-12 01:20:00; nonstop; 290 minutes. Local airport times.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $330.00

• Delta Air Lines DL4711 / DL728: MDW 2026-12-11 09:30:00 → SEA 2026-12-11 14:55:00; 1 stop(s) via DTW; 445 minutes. Local airport times.
  • DL4711: MDW 2026-12-11 09:30:00 → DTW 2026-12-11 11:45:00; layover at DTW: 68 minutes.
  • DL728: DTW 2026-12-11 12:53:00 → SEA 2026-12-11 14:55:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-16 08:30:00 → MDW 2026-12-16 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-16 08:30:00 → MSP 2026-12-16 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-16 15:00:00 → MDW 2026-12-16 16:39:00.

2026-12-11 → 2026-12-16 · Axel-exclusive $290.00

• Southwest Airlines WN1597: MDW 2026-12-11 10:10:00 → SEA 2026-12-11 12:50:00; nonstop; 280 minutes. Local airport times.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $282.50

• Southwest Airlines WN120 / WN244: MDW 2026-12-11 10:50:00 → SEA 2026-12-11 17:50:00; 1 stop(s) via DEN; 540 minutes. Local airport times.
  • WN120: MDW 2026-12-11 10:50:00 → DEN 2026-12-11 12:30:00; layover at DEN: 190 minutes.
  • WN244: DEN 2026-12-11 15:40:00 → SEA 2026-12-11 17:50:00.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $282.50

• Southwest Airlines WN2998 / WN2455: MDW 2026-12-11 18:05:00 → SEA 2026-12-12 01:00:00; 1 stop(s) via PHX; 535 minutes. Local airport times.
  • WN2998: MDW 2026-12-11 18:05:00 → PHX 2026-12-11 21:00:00; layover at PHX: 105 minutes.
  • WN2455: PHX 2026-12-11 22:45:00 → SEA 2026-12-12 01:00:00.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $282.50

• Southwest Airlines WN2691 / WN948: MDW 2026-12-11 05:50:00 → SEA 2026-12-11 13:00:00; 1 stop(s) via LAS; 550 minutes. Local airport times.
  • WN2691: MDW 2026-12-11 05:50:00 → LAS 2026-12-11 07:45:00; layover at LAS: 135 minutes.
  • WN948: LAS 2026-12-11 10:00:00 → SEA 2026-12-11 13:00:00.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $282.50

• Southwest Airlines WN3020 / WN547: MDW 2026-12-11 06:00:00 → SEA 2026-12-11 13:00:00; 1 stop(s) via SAN; 540 minutes. Local airport times.
  • WN3020: MDW 2026-12-11 06:00:00 → SAN 2026-12-11 08:30:00; layover at SAN: 75 minutes.
  • WN547: SAN 2026-12-11 09:45:00 → SEA 2026-12-11 13:00:00.
• Southwest Airlines WN1550: SEA 2026-12-16 06:30:00 → MDW 2026-12-16 12:25:00; nonstop; 235 minutes. Local airport times.

2026-12-11 → 2026-12-16 · Axel-exclusive $330.00

• Delta Air Lines DL5469 / DL877: MDW 2026-12-11 10:24:00 → SEA 2026-12-11 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2026-12-11 10:24:00 → MSP 2026-12-11 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2026-12-11 14:59:00 → SEA 2026-12-11 16:53:00.
• Delta Air Lines DL536 / DL4714: SEA 2026-12-16 08:30:00 → MDW 2026-12-16 16:39:00; 1 stop(s) via MSP; 369 minutes. Local airport times.
  • DL536: SEA 2026-12-16 08:30:00 → MSP 2026-12-16 13:48:00; layover at MSP: 72 minutes.
  • DL4714: MSP 2026-12-16 15:00:00 → MDW 2026-12-16 16:39:00.

Explore this route

• All dates for this route
• Dec 10, 2026 · Return options
• Dec 12, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Chicago (MDW) to Seattle (SEA) · Dec 11, 2026 · return Dec 16, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
• Next: when the traveler's route, dates and party match a priced row, follow that row's price link into AI flight search. Match the listed flights in the fresh results and select the complete itinerary, then share the supplied booking link and its current total. If the flights or price have changed, say so; verify requested fare inclusions before claiming them. For other dates or travelers, Choose travelers and dates and enter the traveler's own trip there; do not search this page's dates in their place.
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• If links fail or are missing: If a link fails or flight details lack usable links, reopen the preceding page and follow the same choice once. Keep refreshed links unchanged and preserve the trip and selections. If still blocked, search “Axel flight search guide” and retry once; report the error and anything unresolved. Recovery: Axel Chicago to Seattle (SEA) flight deals · Flight search guide.
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