$70 Cheap Flights from Rockford (RFD) to San Francisco (SFO)

View $70 flight on Wed, Feb 18, 2026Opens in a new window

Popular airlines from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)

Cheap Flights from Rockford to San Francisco (RFD-SFO)

Prices were available within the past 7 days and start at $70 for one-way flights and $139 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Feb 24 - Tue, Mar 3
RFD
Rockford
SFO
San Francisco
$139 Roundtrip, found 13 hours ago
$139
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Tue, Feb 24 from Rockford to San Francisco, returning Tue, Mar 3, priced at $139 found 13 hours ago
American Airlines
Wed, Feb 18 - Sat, Feb 21
RFD
Rockford
SFO
San Francisco
$150 Roundtrip, found 13 hours ago
$150
Roundtrip
found 13 hours ago
Select American Airlines flight, departing Wed, Feb 18 from Rockford to San Francisco, returning Sat, Feb 21, priced at $150 found 13 hours ago
American Airlines
Thu, Jan 22 - Mon, Jan 26
RFD
Rockford
SFO
San Francisco
$161 Roundtrip, found 12 hours ago
$161
Roundtrip
found 12 hours ago
Select American Airlines flight, departing Thu, Jan 22 from Rockford to San Francisco, returning Mon, Jan 26, priced at $161 found 12 hours ago
American Airlines
Fri, Feb 20 - Wed, Feb 25
RFD
Rockford
SFO
San Francisco
$168 Roundtrip, found 18 hours ago
$168
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Fri, Feb 20 from Rockford to San Francisco, returning Wed, Feb 25, priced at $168 found 18 hours ago
American Airlines
Thu, Jan 15 - Thu, Jan 29
RFD
Rockford
SFO
San Francisco
$171 Roundtrip, found 23 hours ago
$171
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Thu, Jan 15 from Rockford to San Francisco, returning Thu, Jan 29, priced at $171 found 23 hours ago
American Airlines
Sat, Feb 14 - Tue, Feb 17
RFD
Rockford
SFO
San Francisco
$178 Roundtrip, found 23 hours ago
$178
Roundtrip
found 23 hours ago
Select American Airlines flight, departing Sat, Feb 14 from Rockford to San Francisco, returning Tue, Feb 17, priced at $178 found 23 hours ago
American Airlines
Fri, Jan 30 - Mon, Feb 2
RFD
Rockford
SFO
San Francisco
$179 Roundtrip, found 21 hours ago
$179
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Fri, Jan 30 from Rockford to San Francisco, returning Mon, Feb 2, priced at $179 found 21 hours ago
American Airlines
Fri, Feb 20 - Wed, Feb 25
RFD
Rockford
SFO
San Francisco
$185 Roundtrip, found 18 hours ago
$185
Roundtrip
found 18 hours ago
Select American Airlines flight, departing Fri, Feb 20 from Rockford to San Francisco, returning Wed, Feb 25, priced at $185 found 18 hours ago
American Airlines
Sun, Jan 18 - Tue, Jan 20
RFD
Rockford
SFO
San Francisco
$188 Roundtrip, found 2 days ago
$188
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Jan 18 from Rockford to San Francisco, returning Tue, Jan 20, priced at $188 found 2 days ago
American Airlines
Sat, Feb 21 - Mon, Feb 23
RFD
Rockford
SFO
San Francisco
$189 Roundtrip, found 2 days ago
$189
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Feb 21 from Rockford to San Francisco, returning Mon, Feb 23, priced at $189 found 2 days ago

Alternative airports near San Francisco

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to San Francisco Intl. SFO. Cheapest and Closest option available. Average driving time to city center is 19 minutes. Flights from $425
SFO
San Francisco Intl.
CheapestClosest
Average driving time to city center19 min
Flights from $425
Flights from Rockford (RFD) to San Francisco (SFO)
Origin airport
Greater Rockford
Destination airport
San Francisco Intl.
Airlines serving
American Airlines
Roundtrip price
$139
Distance
1780 mi

Rockford to San Francisco Flights

The cheapest times to fly from Rockford to San Francisco

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Rockford to San Francisco are during the month of February. You can find some of the cheapest flights from Rockford to San Francisco with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Rockford to San Francisco

Sunday is one of the best days to book for cheap flights from Rockford to San Francisco: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Rockford to San Francisco

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Rockford to San Francisco in 2026. You can also book with separate airlines for your outbound and return journeys, from $70 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Rockford to San Francisco flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Rockford to San Francisco airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO) cost?
Snag a cheap one-way flight from $70 or cheap return flight from $139 from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)?
February is the cheapest month to fly from RFD to SFO. Planning your trip for the off-season is often the key to finding better fares.
What is the cheapest airline that flies from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll fly you from RFD to SFO. Then, sort your results by "Price (lowest to highest)" to snag a good deal.
How many flights per day from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)?
Nonstop flights from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from RFD to SFO?
Generally you'll find the largest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)?
To avoid potential delays on the Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO) route, travel before 3 PM. Later flights have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO) last-minute?
Holding off until right before your break to book your flight from RFD to SFO often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Is it cheaper to book a RFD to SFO flight and hotel package?
Opting for a RFD to SFO flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our wide range of hotels and then add car rentals, activities and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Rockford, IL (RFD-Greater Rockford) to San Francisco Intl. Airport (SFO)?
If you booked your RFD to SFO flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more details.

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*Available to One Key members.