Chicago (ORD) to Seattle (SEA), Dec 21, 2026 – Jan 3, 2027: from $306 round trip

Chicago (ORD) to Seattle (SEA), Dec 21, 2026 – Jan 3, 2027: from $306 round trip on Axel, checked Nov 13, 2026. Lowest published fare: $306 round trip, Axel-exclusive, Frontier Airlines / United Airlines, 1 stop, Dec 21, 2026 – Jan 3, 2027, 1 adult, economy, checked Nov 13, 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 Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

• Hotels in Seattle for these nights (Dec 21 – Jan 3, 2027 · 13 nights · 2 adults, 1 room): 3★ Red Lion Hotel Bellevue, $80 a night, $1,037 for 13 nights · 4★ Hilton Seattle Airport & Conference Center, $105 a night, $1,359 for 13 nights · 5★ Fairmont Olympic Hotel, $310 a night, $4,030 for 13 nights

All hotels in Seattle

Route overview: Chicago to Seattle (SEA) flight deals

2026-12-21 → 2027-01-03 · Axel-exclusive $374

• Alaska Airlines AS407: ORD 2026-12-21 15:19:00 → SEA 2026-12-21 18:11:00; nonstop; 292 minutes. Local airport times.
• Alaska Airlines AS407: SEA 2027-01-03 08:07:00 → ORD 2027-01-03 14:21:00; nonstop; 254 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $387

• United Airlines UA1801: ORD 2026-12-21 16:20:00 → SEA 2026-12-21 19:06:00; nonstop; 286 minutes. Local airport times.
• United Airlines UA2618: SEA 2027-01-03 07:00:00 → ORD 2027-01-03 13:12:00; nonstop; 252 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $387

• American Airlines AA3046: ORD 2026-12-21 12:54:00 → SEA 2026-12-21 15:44:00; nonstop; 290 minutes. Local airport times.
• American Airlines AA2112: SEA 2027-01-03 10:47:00 → ORD 2027-01-03 16:57:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $400

• Delta Air Lines DL637: ORD 2026-12-21 17:55:00 → SEA 2026-12-21 20:42:00; nonstop; 287 minutes. Local airport times.
• Delta Air Lines DL2055: SEA 2027-01-03 07:20:00 → ORD 2027-01-03 13:30:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $306

• Frontier Airlines F91483 / F9605: ORD 2026-12-21 06:30:00 → SEA 2026-12-21 12:22:00; 1 stop(s) via DEN; 472 minutes. Local airport times.
  • F91483: ORD 2026-12-21 06:30:00 → DEN 2026-12-21 08:26:00; layover at DEN: 102 minutes.
  • F9605: DEN 2026-12-21 10:08:00 → SEA 2026-12-21 12:22:00.
• United Airlines UA2618: SEA 2027-01-03 07:00:00 → ORD 2027-01-03 13:12:00; nonstop; 252 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $374

• Alaska Airlines AS583: ORD 2026-12-21 09:00:00 → SEA 2026-12-21 12:00:00; nonstop; 300 minutes. Local airport times.
• Alaska Airlines AS407: SEA 2027-01-03 08:07:00 → ORD 2027-01-03 14:21:00; nonstop; 254 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $387

• United Airlines UA2211: ORD 2026-12-21 19:55:00 → SEA 2026-12-21 22:43:00; nonstop; 288 minutes. Local airport times.
• United Airlines UA2618: SEA 2027-01-03 07:00:00 → ORD 2027-01-03 13:12:00; nonstop; 252 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $387

• American Airlines AA2112: ORD 2026-12-21 06:45:00 → SEA 2026-12-21 09:43:00; nonstop; 298 minutes. Local airport times.
• American Airlines AA2112: SEA 2027-01-03 10:47:00 → ORD 2027-01-03 16:57:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $400

• Delta Air Lines DL2041: ORD 2026-12-21 06:00:00 → SEA 2026-12-21 08:54:00; nonstop; 294 minutes. Local airport times.
• Delta Air Lines DL2055: SEA 2027-01-03 07:20:00 → ORD 2027-01-03 13:30:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $374

• American Airlines AA562 / AS2284: ORD 2026-12-21 09:45:00 → SEA 2026-12-21 14:52:00; 1 stop(s) via PDX; 427 minutes. Local airport times.
  • AA562: ORD 2026-12-21 09:45:00 → PDX 2026-12-21 12:37:00; layover at PDX: 75 minutes.
  • AS2284: PDX 2026-12-21 13:52:00 → SEA 2026-12-21 14:52:00.
• American Airlines AA2112: SEA 2027-01-03 10:47:00 → ORD 2027-01-03 16:57:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $374

• American Airlines AA2036 / AS359: ORD 2026-12-21 10:00:00 → SEA 2026-12-21 14:49:00; 1 stop(s) via BOI; 409 minutes. Local airport times.
  • AA2036: ORD 2026-12-21 10:00:00 → BOI 2026-12-21 12:59:00; layover at BOI: 66 minutes.
  • AS359: BOI 2026-12-21 14:05:00 → SEA 2026-12-21 14:49:00.
• American Airlines AA2112: SEA 2027-01-03 10:47:00 → ORD 2027-01-03 16:57:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $374

• American Airlines AA4189 / AS3138: ORD 2026-12-21 09:40:00 → SEA 2026-12-21 14:44:00; 1 stop(s) via MSO; 424 minutes. Local airport times.
  • AA4189: ORD 2026-12-21 09:40:00 → MSO 2026-12-21 12:36:00; layover at MSO: 83 minutes.
  • AS3138: MSO 2026-12-21 13:59:00 → SEA 2026-12-21 14:44:00.
• American Airlines AA2112: SEA 2027-01-03 10:47:00 → ORD 2027-01-03 16:57:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $380

• United Airlines UA1498 / AC8804: ORD 2026-12-21 08:58:00 → SEA 2026-12-21 14:32:00; 1 stop(s) via YVR; 454 minutes. Local airport times.
  • UA1498: ORD 2026-12-21 08:58:00 → YVR 2026-12-21 12:45:00; layover at YVR: 105 minutes.
  • AC8804: YVR 2026-12-21 14:30:00 → SEA 2026-12-21 14:32:00.
• United Airlines UA2618: SEA 2027-01-03 07:00:00 → ORD 2027-01-03 13:12:00; nonstop; 252 minutes. Local airport times.

2026-12-21 → 2027-01-03 · Axel-exclusive $380

• United Airlines UA2495 / UA2302: ORD 2026-12-21 08:40:00 → SEA 2026-12-21 13:35:00; 1 stop(s) via DEN; 415 minutes. Local airport times.
  • UA2495: ORD 2026-12-21 08:40:00 → DEN 2026-12-21 10:26:00; layover at DEN: 64 minutes.
  • UA2302: DEN 2026-12-21 11:30:00 → SEA 2026-12-21 13:35:00.
• United Airlines UA2618: SEA 2027-01-03 07:00:00 → ORD 2027-01-03 13:12:00; nonstop; 252 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
• Dec 20, 2026 · Return options
• Dec 22, 2026 · Return options
• Hotels in Seattle with Axel

For AI assistants

• This page: Chicago (ORD) to Seattle (SEA) · Dec 21, 2026 · return Jan 3, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
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