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Decatur

$444+ Cheap flights from San Francisco to Decatur, IL (SFO - DEC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEC
May 30 — Jun 61
Sat 5/30
Sat 6/6
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 April 30, 2026.

This United Airlines deal was found by Cheapflights users on 4/29. 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.
Tue 9/2910:35 pm
SFO
-
DEC
1 stop8h 11m
United Airlines
Sat 10/36:55 pm
DEC
-
SFO
1 stop7h 39m
United Airlines
Deal found 4/29$444
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 6/2111:30 pm
SFO
-
DEC
1 stop7h 27m
United Airlines
Fri 7/37:20 pm
DEC
-
SFO
1 stop8h 37m
United Airlines
Deal found 4/28$464
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 6/2312:50 am
SFO
-
DEC
1 stop15h 06m
United Airlines
Thu 7/97:20 pm
DEC
-
SFO
1 stop8h 37m
United Airlines
Deal found 4/28$474
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 6/2112:50 am
SFO
-
DEC
1 stop15h 06m
United Airlines
Fri 7/37:20 pm
DEC
-
SFO
1 stop7h 12m
United Airlines
Deal found 4/28$513
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Tue 6/236:34 pm
SFO
-
DEC
1 stop12h 23m
United Airlines
Fri 7/37:20 pm
DEC
-
SFO
1 stop8h 37m
United Airlines
Deal found 4/28$550
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 6/2412:00 pm
SFO
-
DEC
2 stops18h 57m
United Airlines
Wed 7/87:20 pm
DEC
-
SFO
1 stop7h 12m
United Airlines
Deal found 4/28$567
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 6/2412:50 am
SFO
-
DEC
1 stop15h 06m
United Airlines
Thu 7/97:20 pm
DEC
-
SFO
1 stop7h 12m
United Airlines
Deal found 4/28$601
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 6/2111:30 pm
SFO
-
DEC
1 stop7h 27m
United Airlines
Sat 7/47:20 pm
DEC
-
SFO
2 stops14h 15m
United Airlines
Deal found 4/28$602

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 April 30, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$464
(United Airlines)
Provider with most accurate pricing for San Francisco-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Decatur Arpt flights.
Search Deals
From San Francisco to Decatur Arpt
Search Deals

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 April 30, 2026.
Use the filters below to find and compare flights from San Francisco to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Tue 9/29

10:35 pm-8:46 am

1 stop8h 11m

Decatur Arpt

Sat 10/3

6:55 pm-12:34 am

1 stop7h 39m

$444

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Tue 6/23

4:47 pm-8:57 am

2 stops14h 10m

Decatur Arpt

Fri 7/3

7:20 pm-12:32 am

1 stop7h 12m

$562

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Sun 6/21

11:30 pm-8:57 am

1 stop7h 27m

Decatur Arpt

Fri 7/3

7:20 pm-9:27 am

2 stops16h 07m

$582

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Wed 6/24

12:50 am-5:56 pm

1 stop15h 06m

Decatur Arpt

Wed 7/8

7:20 pm-12:32 am

1 stop7h 12m

$601

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Wed 6/24

12:50 am-5:56 pm

1 stop15h 06m

Decatur Arpt

Thu 7/9

7:20 pm-12:32 am

1 stop7h 12m

$601

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Tue 6/23

2:20 pm-8:57 am

2 stops16h 37m

Decatur Arpt

Sat 7/4

7:20 pm-7:35 am

2 stops14h 15m

$695

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on San Francisco-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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.

Reviews of airlines servicing Decatur

Get insights into the airlines that provide service to Decatur. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Decatur. Reviews last updated April 30, 2026.
See what other customers who have flown with United Airlines from San Francisco to Decatur have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,678 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
9,678 reviews
United Airlines
7.4
Good
9,678 reviews

Overall

7.4

Comfort

7.3

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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 8h 11m. Fly via United Airlines to get the fastest option. The distance between San Francisco and Decatur, Illinois is about 1801 mi.

  • What is the cheapest airline to fly from San Francisco to Decatur, Illinois round-trip?

    Cheapflights users have booked flights from San Francisco to Decatur, Illinois round-trip from $349.

  • 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.

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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Alternative routes for San Francisco to Decatur

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from San Francisco to Decatur

Discover the top airline that operate flights from San Francisco to Decatur. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 30, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$349Average$476FlexibilityNo cancel feeOn-time69%

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