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Chicago Rockford International Airport to Seattle-Tacoma International Airport flight

Explore the cheapest one-way and round-trip flights from Chicago Rockford International Airport to Seattle-Tacoma International Airport over the next 90 days, with one-way fares from AU$357 and round-trip from AU$574. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      RFD 12:22 PM
      9h 38m
      1 stop
      SEA 8:00 PM
      Chicago - Seattle | Thu, Nov 26 | Allegiant Air
      AU$357 AU$411
      13% off
      13% off
      AU$411 AU$357
    • CHI 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Chicago - Seattle | Fri, Nov 6 | Normal Airline
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      Find more flights
    • RFD 12:37 PM
      26h
      1 stop
      SEA 12:37 PM
      Chicago - Seattle | Fri, Nov 20 | Allegiant Air
      SEA 5:24 PM
      4h 21m
      Nonstop
      ORD 11:45 PM
      Seattle - Chicago | Sat, Nov 28 | American Airlines
      AU$574 AU$660
      13% off
      13% off
      AU$660 AU$574
    • CHI 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Chicago - Seattle | Fri, Nov 6 | Normal Airline
      SEA 3:00 PM
      6h
      Nonstop
      CHI 4:00 PM
      Seattle - Chicago | Sun, Nov 8 | Normal Airline
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      Find more flights
    • RFD 12:22 PM
      9h 38m
      1 stop
      SEA 8:00 PM
      Chicago - Seattle | Thu, Nov 26 | Allegiant Air
      AU$357 AU$411
      13% off
      13% off
      AU$411 AU$357
    • CHI 1:00 PM
      17h 25m
      1 stop
      SEA 2:00 PM
      Chicago - Seattle | Fri, Nov 6 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Chicago to Seattle are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Which airline offers the cheapest flights from Chicago Rockford International Airport to Seattle-Tacoma International Airport?

The cheapest airline flying from Chicago Rockford International Airport to Seattle-Tacoma International Airport is Allegiant Air (from AU$357) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.

Allegiant Air
From AU$357

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About Chicago Rockford International Airport and Seattle-Tacoma International Airport

Learn about Chicago Rockford International Airport (RFD) and Seattle-Tacoma International Airport (SEA) — including location, terminals, transportation, and travel tips.

Flight distance 2,650.29 km
Cheapest one-way ticket price AU$357
Cheapest return ticket price AU$574

FAQs for Chicago Rockford International Airport to Seattle-Tacoma International Airport Flights

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • One-way flights from Chicago Rockford International Airport to Seattle-Tacoma International Airport currently start from AU$357, and round-trip fares start from AU$574. The current lowest fare is a Allegiant Air flight departing on Thu, Nov 26; prices may vary depending on availability.
  • Based on Trip.com flight data for departures within the next 30 days with at most one stop, the average one-way price from Chicago Rockford International Airport to Seattle-Tacoma International Airport is AU$387. Prices may vary depending on the departure date, airline, and availability.
  • Enter Chicago Rockford International Airport and Seattle-Tacoma International Airport, select your departure date and number of passengers, then compare flights by price, flight duration, and baggage allowance. Once you've chosen a fare, review the change and refund rules, fill in passenger details, and pay to receive your booking confirmation.

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Note: Prices shown on this page are the lowest estimated prices found in the last 24 hours and include all taxes and fees.

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Prices displayed on this page are all-inclusive (incl. taxes, fuel surcharges, Civil Aviation Development Fund, etc.), and all fees are clearly shown before payment. Charges for checked baggage, onboard meals, Wi-Fi, and other optional services may also appear in the flight cards where applicable.

Real-time pricing updates

Prices, availability, and travel information on this page have been updated within the last 24 hours, and for many routes the data may refresh in real time. The more popular the route, the more accurate and up-to-date the data.

Change & Cancellation Policy

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Voluntary cancellation/change:
To request a change or cancellation, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and flight segment, and submit your request. Please note that additional charges may apply based on the airline’s fare rules.
Cancellation/change due to a flight schedule change:
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