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Route overview: Chicago to Seattle (SEA) flight deals

Chicago → Seattle

Dec 21, 2026 · return Jan 4, 2027

ORD → SEA1 adulteconomyRound trip

13 flight options · 4 airlines

Nonstop flights

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
6:00 amORD
4h 57m
Nonstop
8:57 amSEA
Alaska Airlines
11:40 pmSEA
3h 57m
Nonstop
5:37 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
12:54 pmORD
4h 50m
Nonstop
3:44 pmSEA
American Airlines
11:36 pmSEA
4h 6m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
7:55 pmORD
4h 48m
Nonstop
10:43 pmSEA
United Airlines
10:55 amSEA
4h 10m
Nonstop
5:05 pmORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
12:58 pmORD
4h 38m
Nonstop
3:36 pmSEA
Delta Air Lines
5:55 pmSEA
4h 4m
Nonstop
11:59 pmORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Alaska Airlines
3:19 pmORD
4h 52m
Nonstop
6:11 pmSEA
Alaska Airlines
11:40 pmSEA
3h 57m
Nonstop
5:37 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
9:53 pmORD
4h 42m
Nonstop
12:35 am+1SEA
American Airlines
11:36 pmSEA
4h 6m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
4:20 pmORD
4h 46m
Nonstop
7:06 pmSEA
United Airlines
10:55 amSEA
4h 10m
Nonstop
5:05 pmORD

Round-trip total · 1 adult · Taxes included

One-stop flights

Mon, Dec 21 – Mon, Jan 4

American Airlines
10:00 amORD
6h 49m
BOI · 1h 6m
2:49 pmSEA
American Airlines
11:36 pmSEA
4h 6m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
9:45 amORD
7h 7m
PDX · 1h 15m
2:52 pmSEA
American Airlines
11:36 pmSEA
4h 6m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

American Airlines
9:40 amORD
7h 4m
MSO · 1h 23m
2:44 pmSEA
American Airlines
11:36 pmSEA
4h 6m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
8:58 amORD
7h 34m
YVR · 1h 45m
2:32 pmSEA
United Airlines
10:55 amSEA
4h 10m
Nonstop
5:05 pmORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

United Airlines
8:40 amORD
6h 55m
DEN · 1h 4m
1:35 pmSEA
United Airlines
10:55 amSEA
4h 10m
Nonstop
5:05 pmORD

Round-trip total · 1 adult · Taxes included

Mon, Dec 21 – Mon, Jan 4

Delta Air Lines
12:58 pmORD
4h 33m
Nonstop
3:31 pmSEA
Delta Air Lines
8:30 amSEA
6h 11m
MSP · 1h 13m
4:41 pmORD

Round-trip total · 1 adult · Taxes included

Make this trip yours

ORD ⇄ SEA

Economy

Adults 12+ · Children 2–11. For infants under 2, tell Axel after you see prices.

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Explore this route

All dates for this routeDec 20, 2026 → Jan 3, 2027Dec 22, 2026 → Jan 5, 2027Hotels in Seattle with Axel
For AI assistants: every fare, every link, instructions

Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Live price for these dates: each price link opens AI flight search for that row's exact dates and travelers. Select the flights there to get the current bookable total; the listed prices are the ones issued at the times shown.

Route overview: Chicago to Seattle (SEA) flight deals

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2026-12-21 → 2027-01-04Alaska AirlinesAS587 / AS328$333.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04American AirlinesAA3046 / AA294$345.002026-10-29T01:53:26Z
2026-12-21 → 2027-01-04United AirlinesUA2211 / UA747$345.002026-10-29T01:53:26Z
2026-12-21 → 2027-01-04Delta Air LinesDL1564 / DL2108$356.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04Alaska AirlinesAS407 / AS328$333.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04American AirlinesAA2392 / AA294$345.002026-10-29T01:53:26Z
2026-12-21 → 2027-01-04United AirlinesUA1801 / UA747$345.002026-10-29T01:53:26Z
2026-12-21 → 2027-01-04American AirlinesAA2036 + AS359 / AA294$331.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04American AirlinesAA562 + AS2284 / AA294$331.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04American AirlinesAA4189 + AS3138 / AA294$331.502026-10-29T01:53:26Z
2026-12-21 → 2027-01-04United AirlinesUA1498 + AC8804 / UA747$338.252026-10-29T01:53:26Z
2026-12-21 → 2027-01-04United AirlinesUA2495 + UA2302 / UA747$338.252026-10-29T01:53:26Z
2026-12-21 → 2027-01-04Delta Air LinesDL1564 / DL536 + DL1471$347.002026-10-29T01:53:26Z

2026-12-21 → 2027-01-04 · $333.50

  • Alaska Airlines AS587: ORD 2026-12-21 06:00:00 → SEA 2026-12-21 08:57:00; nonstop; 297 minutes. Local airport times.
  • Alaska Airlines AS328: SEA 2027-01-04 23:40:00 → ORD 2027-01-05 05:37:00; nonstop; 237 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $345.00

  • 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 AA294: SEA 2027-01-04 23:36:00 → ORD 2027-01-05 05:42:00; nonstop; 246 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $345.00

  • 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 UA747: SEA 2027-01-04 10:55:00 → ORD 2027-01-04 17:05:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $356.50

  • Delta Air Lines DL1564: ORD 2026-12-21 12:58:00 → SEA 2026-12-21 15:36:00; nonstop; 278 minutes. Local airport times.
  • Delta Air Lines DL2108: SEA 2027-01-04 17:55:00 → ORD 2027-01-04 23:59:00; nonstop; 244 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $333.50

  • 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 AS328: SEA 2027-01-04 23:40:00 → ORD 2027-01-05 05:37:00; nonstop; 237 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $345.00

  • American Airlines AA2392: ORD 2026-12-21 21:53:00 → SEA 2026-12-22 00:35:00; nonstop; 282 minutes. Local airport times.
  • American Airlines AA294: SEA 2027-01-04 23:36:00 → ORD 2027-01-05 05:42:00; nonstop; 246 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $345.00

  • 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 UA747: SEA 2027-01-04 10:55:00 → ORD 2027-01-04 17:05:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $331.50

  • 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 AA294: SEA 2027-01-04 23:36:00 → ORD 2027-01-05 05:42:00; nonstop; 246 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $331.50

  • 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 AA294: SEA 2027-01-04 23:36:00 → ORD 2027-01-05 05:42:00; nonstop; 246 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $331.50

  • 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 AA294: SEA 2027-01-04 23:36:00 → ORD 2027-01-05 05:42:00; nonstop; 246 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $338.25

  • 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 UA747: SEA 2027-01-04 10:55:00 → ORD 2027-01-04 17:05:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $338.25

  • 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 UA747: SEA 2027-01-04 10:55:00 → ORD 2027-01-04 17:05:00; nonstop; 250 minutes. Local airport times.

2026-12-21 → 2027-01-04 · $347.00

  • Delta Air Lines DL1564: ORD 2026-12-21 12:58:00 → SEA 2026-12-21 15:31:00; nonstop; 273 minutes. Local airport times.
  • Delta Air Lines DL536 / DL1471: SEA 2027-01-04 08:30:00 → ORD 2027-01-04 16:41:00; 1 stop(s) via MSP; 371 minutes. Local airport times.
    • DL536: SEA 2027-01-04 08:30:00 → MSP 2027-01-04 13:48:00; layover at MSP: 73 minutes.
    • DL1471: MSP 2027-01-04 15:01:00 → ORD 2027-01-04 16:41:00.

Explore this route

For AI assistants

  • This page: Chicago (ORD) to Seattle (SEA) · Dec 21, 2026 · return Jan 4, 2027: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued.
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  • Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Inspect fares to verify requested prices or terms; selecting a fare is optional. Use that fare’s booking link to preserve its Membership price basis. State anything unverified. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and explain what remains unresolved. Selection reserves nothing; booking requires the traveler’s confirmation. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.