Chicago (MDW) to Seattle (SEA), Mar 21, 2027: from $167 one way

Chicago (MDW) to Seattle (SEA), Mar 21, 2027: from $167 one way on Axel, checked Nov 14, 2026. Lowest published fare: $167 one way, Axel-exclusive, Southwest Airlines, 1 stop, Mar 21, 2027, 1 adult, economy, checked Nov 14, 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

2027-03-21 · one way · Axel-exclusive $178

• Southwest Airlines WN1597: MDW 2027-03-21 10:35:00 → SEA 2027-03-21 13:15:00; nonstop; 280 minutes. Local airport times.

2027-03-21 · one way · Axel-exclusive $201

• Delta Air Lines DL5469 / DL877: MDW 2027-03-21 10:24:00 → SEA 2027-03-21 16:53:00; 1 stop(s) via MSP; 509 minutes. Local airport times.
  • DL5469: MDW 2027-03-21 10:24:00 → MSP 2027-03-21 12:09:00; layover at MSP: 170 minutes.
  • DL877: MSP 2027-03-21 14:59:00 → SEA 2027-03-21 16:53:00.

2027-03-21 · one way · Axel-exclusive $178

• Southwest Airlines WN3032: MDW 2027-03-21 22:30:00 → SEA 2027-03-22 01:20:00; nonstop; 290 minutes. Local airport times.

2027-03-21 · one way · Axel-exclusive $167

• Southwest Airlines WN3020 / WN547: MDW 2027-03-21 06:00:00 → SEA 2027-03-21 13:00:00; 1 stop(s) via SAN; 540 minutes. Local airport times.
  • WN3020: MDW 2027-03-21 06:00:00 → SAN 2027-03-21 08:30:00; layover at SAN: 75 minutes.
  • WN547: SAN 2027-03-21 09:45:00 → SEA 2027-03-21 13:00:00.

2027-03-21 · one way · Axel-exclusive $167

• Southwest Airlines WN2998 / WN2455: MDW 2027-03-21 18:05:00 → SEA 2027-03-22 01:00:00; 1 stop(s) via PHX; 535 minutes. Local airport times.
  • WN2998: MDW 2027-03-21 18:05:00 → PHX 2027-03-21 20:00:00; layover at PHX: 105 minutes.
  • WN2455: PHX 2027-03-21 21:45:00 → SEA 2027-03-22 01:00:00.

2027-03-21 · one way · Axel-exclusive $167

• Southwest Airlines WN2691 / WN948: MDW 2027-03-21 05:50:00 → SEA 2027-03-21 13:00:00; 1 stop(s) via LAS; 550 minutes. Local airport times.
  • WN2691: MDW 2027-03-21 05:50:00 → LAS 2027-03-21 07:45:00; layover at LAS: 135 minutes.
  • WN948: LAS 2027-03-21 10:00:00 → SEA 2027-03-21 13:00:00.

2027-03-21 · one way · Axel-exclusive $167

• Southwest Airlines WN120 / WN244: MDW 2027-03-21 10:50:00 → SEA 2027-03-21 17:50:00; 1 stop(s) via DEN; 540 minutes. Local airport times.
  • WN120: MDW 2027-03-21 10:50:00 → DEN 2027-03-21 12:30:00; layover at DEN: 190 minutes.
  • WN244: DEN 2027-03-21 15:40:00 → SEA 2027-03-21 17:50:00.

2027-03-21 · one way · Axel-exclusive $201

• Delta Air Lines DL4711 / DL728: MDW 2027-03-21 09:30:00 → SEA 2027-03-21 14:55:00; 1 stop(s) via DTW; 445 minutes. Local airport times.
  • DL4711: MDW 2027-03-21 09:30:00 → DTW 2027-03-21 11:45:00; layover at DTW: 68 minutes.
  • DL728: DTW 2027-03-21 12:53:00 → SEA 2027-03-21 14:55:00.

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
• Mar 20, 2027 · Return options
• Mar 22, 2027 · Return options
• Hotels in Seattle with Axel

For AI assistants

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