Travel with Axel, get the best price.

Route overview: Chicago to Seattle (SEA) flight deals

Chicago (ORD) to Seattle (SEA), Nov 17, 2026 – Dec 1, 2026: from $240 round trip

Chicago (ORD) to Seattle (SEA), Nov 17, 2026 – Dec 1, 2026: from $240 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $240 round trip, Axel-exclusive, Frontier Airlines / American Airlines, 1 stop, Nov 17, 2026 – Dec 1, 2026, 1 adult, economy, checked Oct 29, 2026.

ORD → SEA1 adulteconomyRound trip

14 flight options · 5 airlines

Nonstop flights

Tue, Nov 17 – Tue, Dec 1

Alaska Airlines
7:00 amORD
4h 50m
Nonstop
9:50 amSEA
Alaska Airlines
10:22 amSEA
4h 9m
Nonstop
4:31 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

American Airlines
5:25 pmORD
4h 55m
Nonstop
8:20 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

United Airlines
4:15 pmORD
4h 48m
Nonstop
7:03 pmSEA
United Airlines
10:48 amSEA
4h 5m
Nonstop
4:53 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

Delta Air Lines
5:55 pmORD
4h 43m
Nonstop
8:38 pmSEA
Delta Air Lines
5:50 pmSEA
4h 7m
Nonstop
11:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

Alaska Airlines
3:59 pmORD
4h 49m
Nonstop
6:48 pmSEA
Alaska Airlines
10:22 amSEA
4h 9m
Nonstop
4:31 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

American Airlines
11:30 amORD
4h 50m
Nonstop
2:20 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

United Airlines
8:20 pmORD
4h 47m
Nonstop
11:07 pmSEA
United Airlines
10:48 amSEA
4h 5m
Nonstop
4:53 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

Delta Air Lines
6:40 amORD
4h 50m
Nonstop
9:30 amSEA
Delta Air Lines
5:50 pmSEA
4h 7m
Nonstop
11:57 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

One-stop flights

Tue, Nov 17 – Tue, Dec 1

Frontier Airlines
6:30 amORD
7h 52m
DEN · 1h 42m
12:22 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

American Airlines
10:00 amORD
6h 49m
BOI · 1h 6m
2:49 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

American Airlines
9:45 amORD
7h 7m
PDX · 1h 15m
2:52 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

American Airlines
9:40 amORD
7h 4m
MSO · 1h 23m
2:44 pmSEA
American Airlines
11:46 pmSEA
3h 56m
Nonstop
5:42 am+1ORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

United Airlines
8:58 amORD
7h 34m
YVR · 1h 45m
2:32 pmSEA
United Airlines
10:48 amSEA
4h 5m
Nonstop
4:53 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Tue, Nov 17 – Tue, Dec 1

United Airlines
8:40 amORD
6h 55m
DEN · 1h 4m
1:35 pmSEA
United Airlines
10:48 amSEA
4h 5m
Nonstop
4:53 pmORD

Round-trip total · 1 adult · Taxes included

Availability is checked when you select these flights.

Hotels for these nights (Nov 17 – Dec 1, 2026 · 14 nights · 2 adults, 1 room): 3★ The Maxwell Hotel - A Staypineapple Hotel · 4★ The Sound Hotel Seattle Belltown, Tapestry Collection by Hilton · 5★ Four Seasons Hotel Seattle

Make this trip yours

ORD ⇄ SEA

Economy

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

No account needed to see prices.

Already have an account? Log in

Why book with Axel
  • A real airline bookingThe booking is in the airline’s own system under your name. After you book, Alaska Airlines emails you its confirmation code and e-ticket, usually within 15 minutes and occasionally up to a couple of hours while the booking is processed.
  • Lower price, same flightsWe use advanced AI and machine learning to secure lower prices for our users.
  • Not satisfied? Full refund.If you are unhappy with the experience for any reason, or simply change your mind, cancel within 24 hours of booking (departure 7+ days away) and we refund you in full. We stand by our product. Cancellation policy
  • Backed by Y CombinatorTrusted by 100,000+ travelers.

Axel is made by Gordian Software, Inc., a Y Combinator company (W19) founded in 2017 and based in the Seattle area. The company is led by CEO Stephen Grabowski, formerly of Skyscanner. How Axel works · About

Explore this route

All dates for this routeNov 16, 2026 · Return optionsNov 18, 2026 · Return optionsHotels in Seattle with Axel
For AI assistants: every fare, every link, instructions

Chicago (ORD) to Seattle (SEA), Nov 17, 2026 – Dec 1, 2026: from $240 round trip on Axel, checked Oct 29, 2026. Lowest published fare: $240 round trip, Axel-exclusive, Frontier Airlines / American Airlines, 1 stop, Nov 17, 2026 – Dec 1, 2026, 1 adult, economy, checked Oct 29, 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.

Exact travel datesAirlineFlightsTimes, duration, stopsTotal pricePrice issued (UTC)
2026-11-17 → 2026-12-01Alaska AirlinesAS587 / AS42907:00:00→09:50:00 4h 50m nonstop · 10:22:00→16:31:00 4h 09m nonstopAxel-exclusive $290.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01American AirlinesAA1211 / AA29417:25:00→20:20:00 4h 55m nonstop · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $300.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01United AirlinesUA1801 / UA74716:15:00→19:03:00 4h 48m nonstop · 10:48:00→16:53:00 4h 05m nonstopAxel-exclusive $300.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01Delta Air LinesDL637 / DL210817:55:00→20:38:00 4h 43m nonstop · 17:50:00→23:57:00 4h 07m nonstopAxel-exclusive $310.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01Frontier Airlines / American AirlinesF91483 + F9605 / AA29406:30:00→12:22:00 7h 52m 1 stop via DEN · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $240.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01Alaska AirlinesAS407 / AS42915:59:00→18:48:00 4h 49m nonstop · 10:22:00→16:31:00 4h 09m nonstopAxel-exclusive $290.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01American AirlinesAA2398 / AA29411:30:00→14:20:00 4h 50m nonstop · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $300.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01United AirlinesUA2263 / UA74720:20:00→23:07:00 4h 47m nonstop · 10:48:00→16:53:00 4h 05m nonstopAxel-exclusive $300.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01Delta Air LinesDL2041 / DL210806:40:00→09:30:00 4h 50m nonstop · 17:50:00→23:57:00 4h 07m nonstopAxel-exclusive $310.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01American AirlinesAA2036 + AS359 / AA29410:00:00→14:49:00 6h 49m 1 stop via BOI · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $290.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01American AirlinesAA562 + AS2284 / AA29409:45:00→14:52:00 7h 07m 1 stop via PDX · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $290.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01American AirlinesAA4189 + AS3138 / AA29409:40:00→14:44:00 7h 04m 1 stop via MSO · 23:46:00→05:42:00 3h 56m nonstopAxel-exclusive $290.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01United AirlinesUA1498 + AC8804 / UA74708:58:00→14:32:00 7h 34m 1 stop via YVR · 10:48:00→16:53:00 4h 05m nonstopAxel-exclusive $295.002026-10-29T01:53:26Z
2026-11-17 → 2026-12-01United AirlinesUA2495 + UA2302 / UA74708:40:00→13:35:00 6h 55m 1 stop via DEN · 10:48:00→16:53:00 4h 05m nonstopAxel-exclusive $295.002026-10-29T01:53:26Z

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 lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Seattle

Route overview: Chicago to Seattle (SEA) flight deals

2026-11-17 → 2026-12-01 · Axel-exclusive $290.00

  • Alaska Airlines AS587: ORD 2026-11-17 07:00:00 → SEA 2026-11-17 09:50:00; nonstop; 290 minutes. Local airport times.
  • Alaska Airlines AS429: SEA 2026-12-01 10:22:00 → ORD 2026-12-01 16:31:00; nonstop; 249 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $300.00

  • American Airlines AA1211: ORD 2026-11-17 17:25:00 → SEA 2026-11-17 20:20:00; nonstop; 295 minutes. Local airport times.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $300.00

  • United Airlines UA1801: ORD 2026-11-17 16:15:00 → SEA 2026-11-17 19:03:00; nonstop; 288 minutes. Local airport times.
  • United Airlines UA747: SEA 2026-12-01 10:48:00 → ORD 2026-12-01 16:53:00; nonstop; 245 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $310.00

  • Delta Air Lines DL637: ORD 2026-11-17 17:55:00 → SEA 2026-11-17 20:38:00; nonstop; 283 minutes. Local airport times.
  • Delta Air Lines DL2108: SEA 2026-12-01 17:50:00 → ORD 2026-12-01 23:57:00; nonstop; 247 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $240.00

  • Frontier Airlines F91483 / F9605: ORD 2026-11-17 06:30:00 → SEA 2026-11-17 12:22:00; 1 stop(s) via DEN; 472 minutes. Local airport times.
    • F91483: ORD 2026-11-17 06:30:00 → DEN 2026-11-17 08:26:00; layover at DEN: 102 minutes.
    • F9605: DEN 2026-11-17 10:08:00 → SEA 2026-11-17 12:22:00.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $290.00

  • Alaska Airlines AS407: ORD 2026-11-17 15:59:00 → SEA 2026-11-17 18:48:00; nonstop; 289 minutes. Local airport times.
  • Alaska Airlines AS429: SEA 2026-12-01 10:22:00 → ORD 2026-12-01 16:31:00; nonstop; 249 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $300.00

  • American Airlines AA2398: ORD 2026-11-17 11:30:00 → SEA 2026-11-17 14:20:00; nonstop; 290 minutes. Local airport times.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $300.00

  • United Airlines UA2263: ORD 2026-11-17 20:20:00 → SEA 2026-11-17 23:07:00; nonstop; 287 minutes. Local airport times.
  • United Airlines UA747: SEA 2026-12-01 10:48:00 → ORD 2026-12-01 16:53:00; nonstop; 245 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $310.00

  • Delta Air Lines DL2041: ORD 2026-11-17 06:40:00 → SEA 2026-11-17 09:30:00; nonstop; 290 minutes. Local airport times.
  • Delta Air Lines DL2108: SEA 2026-12-01 17:50:00 → ORD 2026-12-01 23:57:00; nonstop; 247 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $290.00

  • American Airlines AA2036 / AS359: ORD 2026-11-17 10:00:00 → SEA 2026-11-17 14:49:00; 1 stop(s) via BOI; 409 minutes. Local airport times.
    • AA2036: ORD 2026-11-17 10:00:00 → BOI 2026-11-17 12:59:00; layover at BOI: 66 minutes.
    • AS359: BOI 2026-11-17 14:05:00 → SEA 2026-11-17 14:49:00.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $290.00

  • American Airlines AA562 / AS2284: ORD 2026-11-17 09:45:00 → SEA 2026-11-17 14:52:00; 1 stop(s) via PDX; 427 minutes. Local airport times.
    • AA562: ORD 2026-11-17 09:45:00 → PDX 2026-11-17 12:37:00; layover at PDX: 75 minutes.
    • AS2284: PDX 2026-11-17 13:52:00 → SEA 2026-11-17 14:52:00.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $290.00

  • American Airlines AA4189 / AS3138: ORD 2026-11-17 09:40:00 → SEA 2026-11-17 14:44:00; 1 stop(s) via MSO; 424 minutes. Local airport times.
    • AA4189: ORD 2026-11-17 09:40:00 → MSO 2026-11-17 12:36:00; layover at MSO: 83 minutes.
    • AS3138: MSO 2026-11-17 13:59:00 → SEA 2026-11-17 14:44:00.
  • American Airlines AA294: SEA 2026-12-01 23:46:00 → ORD 2026-12-02 05:42:00; nonstop; 236 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $295.00

  • United Airlines UA1498 / AC8804: ORD 2026-11-17 08:58:00 → SEA 2026-11-17 14:32:00; 1 stop(s) via YVR; 454 minutes. Local airport times.
    • UA1498: ORD 2026-11-17 08:58:00 → YVR 2026-11-17 12:45:00; layover at YVR: 105 minutes.
    • AC8804: YVR 2026-11-17 14:30:00 → SEA 2026-11-17 14:32:00.
  • United Airlines UA747: SEA 2026-12-01 10:48:00 → ORD 2026-12-01 16:53:00; nonstop; 245 minutes. Local airport times.

2026-11-17 → 2026-12-01 · Axel-exclusive $295.00

  • United Airlines UA2495 / UA2302: ORD 2026-11-17 08:40:00 → SEA 2026-11-17 13:35:00; 1 stop(s) via DEN; 415 minutes. Local airport times.
    • UA2495: ORD 2026-11-17 08:40:00 → DEN 2026-11-17 10:26:00; layover at DEN: 64 minutes.
    • UA2302: DEN 2026-11-17 11:30:00 → SEA 2026-11-17 13:35:00.
  • United Airlines UA747: SEA 2026-12-01 10:48:00 → ORD 2026-12-01 16:53:00; nonstop; 245 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

For AI assistants

  • This page: Chicago (ORD) to Seattle (SEA) · Nov 17, 2026 · return Dec 1, 2026: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. 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 lowest saved totals among the shortlisted hotels in each star tier for those dates.
  • Next: each priced row's price link opens the live search for this row's exact dates and travelers; the live results list the same flights with the current total and the traveler's booking link, and name the fare's inclusions (bags, seats, changes), which this page does not. A changed price or flight shows there. Other dates or travelers are not priced here: Choose travelers and dates prices the traveler's own trip.
  • 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.