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Route overview: Chicago to Seattle (SEA) flight deals

Chicago → Seattle

Jan 21, 2027 · return Jan 31, 2027

ORD → SEA1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Thu, Jan 21 – Sun, Jan 31

Alaska Airlines
9:00 amORD
5h
Nonstop
12:00 pmSEA
Alaska Airlines
8:07 amSEA
4h 14m
Nonstop
2:21 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

United Airlines
7:55 pmORD
4h 48m
Nonstop
10:43 pmSEA
United Airlines
7:00 amSEA
4h 12m
Nonstop
1:12 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

American Airlines
12:54 pmORD
5h 4m
Nonstop
3:58 pmSEA
American Airlines
10:47 amSEA
4h 10m
Nonstop
4:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

Delta Air Lines
6:40 amORD
4h 57m
Nonstop
9:37 amSEA
Delta Air Lines
7:20 amSEA
4h 10m
Nonstop
1:30 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

Alaska Airlines
3:19 pmORD
4h 52m
Nonstop
6:11 pmSEA
Alaska Airlines
8:07 amSEA
4h 14m
Nonstop
2:21 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

United Airlines
9:00 amORD
4h 58m
Nonstop
11:58 amSEA
United Airlines
7:00 amSEA
4h 12m
Nonstop
1:12 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

American Airlines
10:05 amORD
5h 6m
Nonstop
1:11 pmSEA
American Airlines
10:47 amSEA
4h 10m
Nonstop
4:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

Delta Air Lines
12:58 pmORD
4h 33m
Nonstop
3:31 pmSEA
Delta Air Lines
7:20 amSEA
4h 10m
Nonstop
1:30 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Thu, Jan 21 – Sun, Jan 31

Frontier Airlines
6:30 amORD
7h 52m
DEN · 1h 42m
12:22 pmSEA
United Airlines
7:00 amSEA
4h 12m
Nonstop
1:12 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

American Airlines
10:00 amORD
6h 49m
BOI · 1h 6m
2:49 pmSEA
American Airlines
10:47 amSEA
4h 10m
Nonstop
4:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

American Airlines
9:45 amORD
7h 7m
PDX · 1h 15m
2:52 pmSEA
American Airlines
10:47 amSEA
4h 10m
Nonstop
4:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

American Airlines
9:40 amORD
7h 4m
MSO · 1h 23m
2:44 pmSEA
American Airlines
10:47 amSEA
4h 10m
Nonstop
4:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

United Airlines
8:40 amORD
6h 55m
DEN · 1h 4m
1:35 pmSEA
United Airlines
7:00 amSEA
4h 12m
Nonstop
1:12 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Thu, Jan 21 – Sun, Jan 31

United Airlines
8:58 amORD
7h 34m
YVR · 1h 45m
2:32 pmSEA
United Airlines
7:00 amSEA
4h 12m
Nonstop
1:12 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

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 routeJan 20, 2027 · Return optionsJan 22, 2027 · Return optionsHotels 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.

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.

Exact travel datesAirlineFlightsTotal pricePrice issued (UTC)
2027-01-21 → 2027-01-31Alaska AirlinesAS583 / AS407Axel-exclusive $275.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31United AirlinesUA2211 / UA2618Axel-exclusive $285.002026-10-29T01:53:26Z
2027-01-21 → 2027-01-31American AirlinesAA3113 / AA2112Axel-exclusive $285.002026-10-29T01:53:26Z
2027-01-21 → 2027-01-31Delta Air LinesDL2041 / DL2055Axel-exclusive $294.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31Frontier Airlines / United AirlinesF91483 + F9605 / UA2618Axel-exclusive $228.002026-10-29T01:53:26Z
2027-01-21 → 2027-01-31Alaska AirlinesAS407 / AS407Axel-exclusive $275.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31United AirlinesUA2099 / UA2618Axel-exclusive $285.002026-10-29T01:53:26Z
2027-01-21 → 2027-01-31American AirlinesAA2398 / AA2112Axel-exclusive $285.002026-10-29T01:53:26Z
2027-01-21 → 2027-01-31Delta Air LinesDL1564 / DL2055Axel-exclusive $294.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31American AirlinesAA2036 + AS359 / AA2112Axel-exclusive $275.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31American AirlinesAA562 + AS2284 / AA2112Axel-exclusive $275.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31American AirlinesAA4189 + AS3138 / AA2112Axel-exclusive $275.502026-10-29T01:53:26Z
2027-01-21 → 2027-01-31United AirlinesUA2495 + UA2302 / UA2618Axel-exclusive $280.252026-10-29T01:53:26Z
2027-01-21 → 2027-01-31United AirlinesUA1498 + AC8804 / UA2618Axel-exclusive $280.252026-10-29T01:53:26Z

Route overview: Chicago to Seattle (SEA) flight deals

2027-01-21 → 2027-01-31 · Axel-exclusive $275.50

  • Alaska Airlines AS583: ORD 2027-01-21 09:00:00 → SEA 2027-01-21 12:00:00; nonstop; 300 minutes. Local airport times.
  • Alaska Airlines AS407: SEA 2027-01-31 08:07:00 → ORD 2027-01-31 14:21:00; nonstop; 254 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $285.00

  • United Airlines UA2211: ORD 2027-01-21 19:55:00 → SEA 2027-01-21 22:43:00; nonstop; 288 minutes. Local airport times.
  • United Airlines UA2618: SEA 2027-01-31 07:00:00 → ORD 2027-01-31 13:12:00; nonstop; 252 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $285.00

  • American Airlines AA3113: ORD 2027-01-21 12:54:00 → SEA 2027-01-21 15:58:00; nonstop; 304 minutes. Local airport times.
  • American Airlines AA2112: SEA 2027-01-31 10:47:00 → ORD 2027-01-31 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $294.50

  • Delta Air Lines DL2041: ORD 2027-01-21 06:40:00 → SEA 2027-01-21 09:37:00; nonstop; 297 minutes. Local airport times.
  • Delta Air Lines DL2055: SEA 2027-01-31 07:20:00 → ORD 2027-01-31 13:30:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $228.00

  • Frontier Airlines F91483 / F9605: ORD 2027-01-21 06:30:00 → SEA 2027-01-21 12:22:00; 1 stop(s) via DEN; 472 minutes. Local airport times.
    • F91483: ORD 2027-01-21 06:30:00 → DEN 2027-01-21 08:26:00; layover at DEN: 102 minutes.
    • F9605: DEN 2027-01-21 10:08:00 → SEA 2027-01-21 12:22:00.
  • United Airlines UA2618: SEA 2027-01-31 07:00:00 → ORD 2027-01-31 13:12:00; nonstop; 252 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $275.50

  • Alaska Airlines AS407: ORD 2027-01-21 15:19:00 → SEA 2027-01-21 18:11:00; nonstop; 292 minutes. Local airport times.
  • Alaska Airlines AS407: SEA 2027-01-31 08:07:00 → ORD 2027-01-31 14:21:00; nonstop; 254 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $285.00

  • United Airlines UA2099: ORD 2027-01-21 09:00:00 → SEA 2027-01-21 11:58:00; nonstop; 298 minutes. Local airport times.
  • United Airlines UA2618: SEA 2027-01-31 07:00:00 → ORD 2027-01-31 13:12:00; nonstop; 252 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $285.00

  • American Airlines AA2398: ORD 2027-01-21 10:05:00 → SEA 2027-01-21 13:11:00; nonstop; 306 minutes. Local airport times.
  • American Airlines AA2112: SEA 2027-01-31 10:47:00 → ORD 2027-01-31 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $294.50

  • Delta Air Lines DL1564: ORD 2027-01-21 12:58:00 → SEA 2027-01-21 15:31:00; nonstop; 273 minutes. Local airport times.
  • Delta Air Lines DL2055: SEA 2027-01-31 07:20:00 → ORD 2027-01-31 13:30:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $275.50

  • American Airlines AA2036 / AS359: ORD 2027-01-21 10:00:00 → SEA 2027-01-21 14:49:00; 1 stop(s) via BOI; 409 minutes. Local airport times.
    • AA2036: ORD 2027-01-21 10:00:00 → BOI 2027-01-21 12:59:00; layover at BOI: 66 minutes.
    • AS359: BOI 2027-01-21 14:05:00 → SEA 2027-01-21 14:49:00.
  • American Airlines AA2112: SEA 2027-01-31 10:47:00 → ORD 2027-01-31 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $275.50

  • American Airlines AA562 / AS2284: ORD 2027-01-21 09:45:00 → SEA 2027-01-21 14:52:00; 1 stop(s) via PDX; 427 minutes. Local airport times.
    • AA562: ORD 2027-01-21 09:45:00 → PDX 2027-01-21 12:37:00; layover at PDX: 75 minutes.
    • AS2284: PDX 2027-01-21 13:52:00 → SEA 2027-01-21 14:52:00.
  • American Airlines AA2112: SEA 2027-01-31 10:47:00 → ORD 2027-01-31 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $275.50

  • American Airlines AA4189 / AS3138: ORD 2027-01-21 09:40:00 → SEA 2027-01-21 14:44:00; 1 stop(s) via MSO; 424 minutes. Local airport times.
    • AA4189: ORD 2027-01-21 09:40:00 → MSO 2027-01-21 12:36:00; layover at MSO: 83 minutes.
    • AS3138: MSO 2027-01-21 13:59:00 → SEA 2027-01-21 14:44:00.
  • American Airlines AA2112: SEA 2027-01-31 10:47:00 → ORD 2027-01-31 16:57:00; nonstop; 250 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $280.25

  • United Airlines UA2495 / UA2302: ORD 2027-01-21 08:40:00 → SEA 2027-01-21 13:35:00; 1 stop(s) via DEN; 415 minutes. Local airport times.
    • UA2495: ORD 2027-01-21 08:40:00 → DEN 2027-01-21 10:26:00; layover at DEN: 64 minutes.
    • UA2302: DEN 2027-01-21 11:30:00 → SEA 2027-01-21 13:35:00.
  • United Airlines UA2618: SEA 2027-01-31 07:00:00 → ORD 2027-01-31 13:12:00; nonstop; 252 minutes. Local airport times.

2027-01-21 → 2027-01-31 · Axel-exclusive $280.25

  • United Airlines UA1498 / AC8804: ORD 2027-01-21 08:58:00 → SEA 2027-01-21 14:32:00; 1 stop(s) via YVR; 454 minutes. Local airport times.
    • UA1498: ORD 2027-01-21 08:58:00 → YVR 2027-01-21 12:45:00; layover at YVR: 105 minutes.
    • AC8804: YVR 2027-01-21 14:30:00 → SEA 2027-01-21 14:32:00.
  • United Airlines UA2618: SEA 2027-01-31 07:00:00 → ORD 2027-01-31 13:12:00; nonstop; 252 minutes. Local airport times.

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For AI assistants

  • This page: Chicago (ORD) to Seattle (SEA) · Jan 21, 2027 · return Jan 31, 2027: 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.
  • Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
  • 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.
  • 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. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. 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.