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Decatur

$278+ Cheap flights from San Francisco to Decatur, IL (SFO - DEC)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEC
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from San Francisco to Decatur

Cheapest flights from San Francisco to Decatur
Explore the most affordable flight options available from San Francisco to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/2711:05 pmSFO - DEC
1 stop8h 00mUnited Airlines
Mon 1/57:09 pmDEC - SFO
2 stops25h 43mUnited Airlines
Deal found 12/13$573
This United Airlines deal was found by Cheapflights users on 12/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2911:05 pmSFO - DEC
1 stop8h 00mUnited Airlines
Fri 1/27:09 pmDEC - SFO
2 stops14h 31mUnited Airlines
Deal found 12/15$602
This United Airlines deal was found by Cheapflights users on 12/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/188:25 amSFO - DEC
1 stop7h 34mUnited Airlines
Wed 12/319:44 amDEC - SFO
1 stop25h 24mUnited Airlines
Deal found 12/13$761
This United Airlines deal was found by Cheapflights users on 12/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/197:00 amSFO - DEC
1 stop8h 59mUnited Airlines
Thu 12/259:44 amDEC - SFO
1 stop9h 52mUnited Airlines
Deal found 12/14$850

Find flight deals from San Francisco to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Decatur (DEC). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$506
(United Airlines)

One-way from

$278
(United Airlines)
Provider with most accurate pricing for San Francisco-Decatur Arpt flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Decatur Arpt flights.
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From San Francisco to Decatur Arpt
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One-way flight from San Francisco to Decatur Arpt
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Cheapflights Fare Finder

 
Customize your flight search to find flights from San Francisco to Decatur that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
Use the filters below to find and compare flights from San Francisco to Decatur that are best for you.

Fly from

San Francisco

Fly to

Decatur

Route

Depart

Return

Price

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Wed 1/14

11:56 pm-9:05 am

1 stop7h 09m

Decatur Arpt

Sat 1/17

7:09 pm-11:49 am

1 stop18h 40m

$506

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 2/13

9:20 pm-5:54 pm

2 stops18h 34m

Decatur Arpt

Sun 2/15

9:50 am-5:40 pm

1 stop9h 50m

$542

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Mon 12/29

11:05 pm-9:05 am

1 stop8h 00m

Decatur Arpt

Fri 1/2

7:09 pm-7:40 am

2 stops14h 31m

$602

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Sun 3/1

11:59 pm-5:54 pm

1 stop15h 55m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/14

Compare providers for flights from San Francisco to Decatur

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Decatur in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Francisco-Decatur, Illinois flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Decatur, Illinois flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Francisco-Decatur, Illinois flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Decatur, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from San Francisco with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Decatur

What is the cheapest month to book a flight from San Francisco to Decatur, Illinois?

Currently, September is the cheapest month in which you can book a flight from San Francisco to Decatur, Illinois (average of $380). Flying from San Francisco to Decatur, Illinois in November is currently the most expensive (average of $535). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from San Francisco to Decatur, Illinois?

    There are many flights that can get you from San Francisco to Decatur, Illinois in 9h 16m. Fly via United Airlines to get the fastest option. The distance between San Francisco and Decatur, Illinois is about 1801 mi.

  • Can I find deals for flights from San Francisco to Decatur that include hotel bookings?

    Yes. In addition to deals on San Francisco to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Decatur.

  • Can I find deals for business class flights from San Francisco to Decatur?

    Yes. Cheapflights offers flight deals from San Francisco to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to Decatur, Illinois?

    Currently, September is the cheapest month in which you can book a flight from San Francisco to Decatur, Illinois (average of $380). Flying from San Francisco to Decatur, Illinois in November is currently the most expensive (average of $535). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

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