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Chicago Rockford International Airport to San Francisco International Airport flight
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Chicago Rockford International Airport to San Francisco International Airport Flights Info

Cheapest one-way
TWD 5,002
Allegiant Air Allegiant Air 25h 17m · 1 stop Sun, Jan 10
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Cheapest round-trip
TWD 9,127
Allegiant Air Allegiant Air 11h 55m · 2 stops Sun, Jan 10 - Mon, Jan 11
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Recommended airlines
Allegiant Air Allegiant AirCheapest· From TWD 5,002 United Airlines United AirlinesMost booked

Explore the cheapest one-way and round-trip flights from Chicago Rockford International Airport to San Francisco International Airport over the next 90 days, with one-way fares from TWD 5,002 and round-trip from TWD 9,127. Based on Trip.com's latest 7-day flight data.

    • Cheapest
      RFD 12:27 PM
      25h 17m
      1 stop
      SFO 11:44 AM
      Chicago - San Francisco | Sun, Jan 10 | Allegiant Air
      TWD 5,002 TWD 10,445
      52% off
      52% off
      TWD 10,445 TWD 5,002
    • RFD 12:22 PM
      7h 45m
      1 stop
      SFO 6:07 PM
      Chicago - San Francisco | Tue, Dec 1 | Allegiant Air
      TWD 6,456 TWD 10,445
      38% off
      38% off
      TWD 10,445 TWD 6,456
    • RFD 12:27 PM
      20h 37m
      1 stop
      SFO 7:04 AM
      Chicago - San Francisco | Thu, Jan 7 | Allegiant Air
      TWD 6,707 TWD 10,445
      36% off
      36% off
      TWD 10,445 TWD 6,707
    • RFD 8:52 PM
      13h 27m
      1 stop
      SFO 8:19 AM
      Chicago - San Francisco | Thu, Nov 19 | Allegiant Air
      TWD 7,274
      30% off
      TWD 10,445 TWD 7,274
    • RFD 12:37 PM
      13h 33m
      1 stop
      SFO 12:10 AM
      Chicago - San Francisco | Sun, Nov 29 | Allegiant Air
      TWD 9,087
      13% off
      TWD 10,445 TWD 9,087
    • CHI 1:00 PM
      17h 25m
      1 stop
      SFO 2:00 PM
      Chicago - San Francisco | Mon, Nov 16 | Normal Airline
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      Find more flights
    • RFD 12:42 PM
      11h 55m
      1 stop
      SFO 10:37 PM
      Chicago - San Francisco | Sun, Jan 10 | Allegiant Air
      SFO 11:59 AM
      6h 59m
      1 stop
      ORD 8:58 PM
      San Francisco - Chicago | Mon, Jan 11 | Frontier Airlines
      TWD 9,127 TWD 21,406
      56% off
      56% off
      TWD 21,406 TWD 9,127
    • RFD 12:37 PM
      24h 24m
      1 stop
      SFO 11:01 AM
      Chicago - San Francisco | Sun, Nov 22 | Allegiant Air
      SFO 5:23 AM
      6h 52m
      1 stop
      ORD 2:15 PM
      San Francisco - Chicago | Fri, Nov 27 | American Airlines
      TWD 10,408 TWD 21,406
      51% off
      51% off
      TWD 21,406 TWD 10,408
    • RFD 12:27 PM
      20h 37m
      1 stop
      SFO 7:04 AM
      Chicago - San Francisco | Sun, Jan 3 | Allegiant Air
      SFO 11:25 AM
      11h 1m
      1 stop
      ORD 12:26 AM
      San Francisco - Chicago | Sat, Jan 9 | Frontier Airlines
      TWD 10,502 TWD 21,406
      51% off
      51% off
      TWD 21,406 TWD 10,502
    • RFD 9:02 PM
      11h 55m
      1 stop
      SFO 6:57 AM
      Chicago - San Francisco | Tue, Dec 22 | Allegiant Air
      SFO 4:11 PM
      11h 38m
      1 stop
      ORD 5:49 AM
      San Francisco - Chicago | Tue, Dec 29 | Frontier Airlines
      TWD 11,103
      48% off
      TWD 21,406 TWD 11,103
    • RFD 12:42 PM
      11h 55m
      1 stop
      SFO 10:37 PM
      Chicago - San Francisco | Thu, Jan 7 | Allegiant Air
      SFO 11:59 AM
      6h 59m
      1 stop
      ORD 8:58 PM
      San Francisco - Chicago | Mon, Jan 11 | Frontier Airlines
      TWD 11,113
      48% off
      TWD 21,406 TWD 11,113
    • RFD 12:27 PM
      20h 37m
      1 stop
      SFO 7:04 AM
      Chicago - San Francisco | Thu, Dec 24 | Allegiant Air
      SFO 10:21 PM
      6h 33m
      1 stop
      ORD 6:54 AM
      San Francisco - Chicago | Wed, Dec 30 | Frontier Airlines
      TWD 11,152
      48% off
      TWD 21,406 TWD 11,152
    • RFD 9:02 PM
      11h 55m
      1 stop
      SFO 6:57 AM
      Chicago - San Francisco | Tue, Dec 29 | Allegiant Air
      SFO 9:46 PM
      6h 14m
      1 stop
      ORD 6:00 AM
      San Francisco - Chicago | Mon, Jan 4 | Frontier Airlines
      TWD 12,670
      41% off
      TWD 21,406 TWD 12,670
    • RFD 12:22 PM
      24h 39m
      1 stop
      SFO 11:01 AM
      Chicago - San Francisco | Tue, Nov 24 | Allegiant Air
      SFO 11:26 PM
      10h 7m
      1 stop
      MDW 11:33 AM
      San Francisco - Chicago | Mon, Nov 30 | Frontier Airlines
      TWD 14,010
      35% off
      TWD 21,406 TWD 14,010
    • RFD 12:47 PM
      12h 46m
      2 stops
      SFO 11:33 PM
      Chicago - San Francisco | Thu, Dec 3 | Allegiant Air
      SFO 6:00 AM
      4h 15m
      Nonstop
      MDW 12:15 PM
      San Francisco - Chicago | Mon, Dec 7 |
      TWD 16,691
      22% off
      TWD 21,406 TWD 16,691
    • CHI 1:00 PM
      17h 25m
      1 stop
      SFO 2:00 PM
      Chicago - San Francisco | Mon, Nov 16 | Normal Airline
      SFO 3:00 PM
      6h
      Nonstop
      CHI 4:00 PM
      San Francisco - Chicago | Wed, Nov 18 | Normal Airline
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    • RFD 12:22 PM
      7h 45m
      1 stop
      SFO 6:07 PM
      Chicago - San Francisco | Tue, Dec 1 | Allegiant Air
      TWD 6,456 TWD 10,445
      38% off
      38% off
      TWD 10,445 TWD 6,456
    • RFD 8:52 PM
      13h 27m
      1 stop
      SFO 8:19 AM
      Chicago - San Francisco | Thu, Nov 19 | Allegiant Air
      TWD 7,274 TWD 10,445
      30% off
      30% off
      TWD 10,445 TWD 7,274
    • RFD 12:37 PM
      13h 33m
      1 stop
      SFO 12:10 AM
      Chicago - San Francisco | Sun, Nov 29 | Allegiant Air
      TWD 9,087 TWD 10,445
      13% off
      13% off
      TWD 10,445 TWD 9,087
    • RFD 12:27 PM
      20h 37m
      1 stop
      SFO 7:04 AM
      Chicago - San Francisco | Thu, Jan 7 | Allegiant Air
      TWD 6,707
      36% off
      TWD 10,445 TWD 6,707
    • RFD 12:27 PM
      25h 17m
      1 stop
      SFO 11:44 AM
      Chicago - San Francisco | Sun, Jan 10 | Allegiant Air
      TWD 5,002
      52% off
      TWD 10,445 TWD 5,002
    • CHI 1:00 PM
      17h 25m
      1 stop
      SFO 2:00 PM
      Chicago - San Francisco | Mon, Nov 16 | Normal Airline
      Find more flights
      Find more flights

Displayed flight fares from Chicago to San Francisco 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 San Francisco International Airport?

The cheapest airline flying from Chicago Rockford International Airport to San Francisco International Airport is Allegiant Air (from TWD 5,002) among 1 carriers operating this route. Based on Trip.com's latest 7-day flight data.
Cebu Pacific logo Cebu Pacific Philippine Airlines logo Philippine Airlines Philippines AirAsia logo Philippines AirAsia Cebgo logo Cebgo Sunlight Air logo Sunlight Air
United Airlines logo United Airlines

FAQs for Chicago Rockford International Airport to San Francisco International Airport Flights

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

    • The distance from San Francisco International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
  • The closest airport to San Francisco International Airport (SFO) is Oakland San Francisco Bay Airport. The distance is around 17 km.
  • One-way flights from Chicago Rockford International Airport to San Francisco International Airport currently start from TWD 5,002, and round-trip fares start from TWD 9,127. The current lowest fare is a Allegiant Air flight departing on Sun, Jan 10; 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 San Francisco International Airport is TWD 7,261. Prices may vary depending on the departure date, airline, and availability.
  • Enter Chicago Rockford International Airport and San Francisco 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.

Popular Destinations

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

Book with no extra fees

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

Trip.com shows the change and cancellation rules for each ticket during the booking process, including all related fees and conditions. Please refer to the following scenarios:
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:
If your flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For full details of change and cancellation policies, please refer to the customer support pages.