$275+ 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — DEC
Nov 29 — Dec 61
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Decatur with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Francisco to Decatur
Cheapest
Best
Last-minute
One-way
Cheapest flights from San Francisco to DecaturExplore 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 October 30, 2026.
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 October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/114:45 pm -
1 stop23h 25m
Sat 12/197:03 pm -
1 stop7h 56m
Deal found 10/25![United Airlines logo]()
$538
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/1011:30 pm -
1 stop6h 39m
Sat 11/146:57 pm -
1 stop7h 56m
Deal found 10/26![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/911:40 pm -
1 stop16h 30m
Sat 1/27:03 pm -
1 stop7h 56m
Deal found 10/27![United Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/78:20 am -
1 stop7h 35m
Wed 11/116:57 pm -
1 stop7h 56m
Deal found 10/26![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/66:42 pm -
1 stop21h 13m
Sat 11/146:57 pm -
1 stop15h 47m
Deal found 10/25![United Airlines logo]()
$703
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/2511:30 pm -
1 stop6h 39m
Sun 11/296:57 pm -
1 stop10h 00m
Deal found 10/25![United Airlines logo]()
$735
Best flights from San Francisco to DecaturDiscover carefully curated flight deals from San Francisco to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
Discover carefully curated flight deals from San Francisco to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/114:45 pm -
1 stop23h 25m
Sat 12/197:03 pm -
1 stop7h 56m
Deal found 10/25![United Airlines logo]()
$538
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Wed 1/2710:40 pm -
1 stop7h 37m
Sat 1/307:00 pm -
1 stop20h 45m
Deal found 10/29![United Airlines logo]()
$538
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/94:25 pm -
2 stops13h 30m
Sat 1/27:03 pm -
1 stop7h 56m
Deal found 10/27![United Airlines logo]()
$691
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/2511:30 pm -
1 stop6h 39m
Sun 11/296:57 pm -
1 stop10h 00m
Deal found 10/25![United Airlines logo]()
$735
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/2210:45 pm -
1 stop7h 24m
Sat 11/286:57 pm -
1 stop7h 56m
Deal found 10/27![United Airlines logo]()
$794
Last-minute flights from San Francisco to DecaturDiscover last-minute flight deals from San Francisco to Decatur. Data last updated October 30, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Decatur. Data last updated October 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/66:42 pm -
1 stop21h 13m
Sat 11/146:57 pm -
1 stop15h 47m
Deal found 10/25![United Airlines logo]()
$703
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/68:20 am -
1 stop7h 50m
Sun 11/89:10 am -
1 stop7h 32m
Deal found 10/26![United Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/78:20 am -
1 stop7h 35m
Wed 11/116:57 pm -
1 stop7h 56m
Deal found 10/26![United Airlines logo]()
$629
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/85:00 am -
1 stop11h 10m
Tue 11/107:02 pm -
2 stops22h 13m
Deal found 10/27![United Airlines logo]()
$883
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/1011:30 pm -
1 stop6h 39m
Sat 11/146:57 pm -
1 stop7h 56m
Deal found 10/26![United Airlines logo]()
$584
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 11/2110:45 pm -
1 stop7h 24m
Fri 11/276:57 pm -
1 stop7h 53m
Deal found 10/29![United Airlines logo]()
$825
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/2210:45 pm -
1 stop7h 24m
Sat 11/286:57 pm -
1 stop7h 56m
Deal found 10/27![United Airlines logo]()
$794
This United Airlines deal was found by Cheapflights users on 10/25. 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 11/2511:30 pm -
1 stop6h 39m
Sun 11/296:57 pm -
1 stop10h 00m
Deal found 10/25![United Airlines logo]()
$735
One-way flights from San Francisco to DecaturSearch for one-way flight options from San Francisco to Decatur. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
Search for one-way flight options from San Francisco to Decatur. Find affordable one-way fares based on user searches. Data last updated October 30, 2026.
This United Airlines deal was found by Cheapflights users on 10/29. 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.
Sat 12/512:41 pm -
1 stop17h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/29![United Airlines logo]()
$275
This United Airlines deal was found by Cheapflights users on 10/25. 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 12/912:41 pm -
1 stop17h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![United Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Sat 11/142:00 pm -
1 stop16h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/28![United Airlines logo]()
$422
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 October 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $538 (United Airlines) |
One-way from | $275 (United Airlines) |
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 7,457,451 searches. Data last updated October 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
Cheapest round-trip
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Sat 12/5
12:41 pm-7:55 am
1 stop17h 14m
Decatur Arpt
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$275
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Wed 12/9
8:10 am-7:55 am
2 stops21h 45m
Decatur Arpt
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$365
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Sat 11/14
2:00 pm-8:09 am
1 stop16h 09m
Decatur Arpt
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$422
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Fri 12/11
4:45 pm-6:10 pm
1 stop23h 25m
Decatur Arpt
Sat 12/19
7:03 pm-12:59 am
1 stop7h 56m
$538
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Wed 1/27
10:40 pm-8:17 am
1 stop7h 37m
Decatur Arpt
Sat 1/30
7:00 pm-1:45 pm
1 stop20h 45m
$538
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Wed 12/9
4:25 pm-7:55 am
2 stops13h 30m
Decatur Arpt
Sat 1/2
7:03 pm-12:59 am
1 stop7h 56m
$691
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Wed 11/25
11:30 pm-8:09 am
1 stop6h 39m
Decatur Arpt
Sun 11/29
6:57 pm-2:57 am
1 stop10h 00m
$735
Quickest round-trip
San FranciscoDecatur
SFO San Francisco - DEC Decatur Arpt
SFODEC
San Francisco
Sun 11/22
10:45 pm-8:09 am
1 stop7h 24m
Decatur Arpt
Sat 11/28
6:57 pm-12:53 am
1 stop7h 56m
$794
Sorted by cheapest first
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 October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- 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.
SFO-DEC
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 October 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.
Boarding
7.7
Crew
8.1
Entertainment
7.1
Overall
7.3
Comfort
7.3
Food
6.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
Boarding
7.7
Crew
8.1
Entertainment
7.1
Overall
7.3
Comfort
7.3
Food
6.7
Reviews
1 / 20
4.0
OkayThomas,Mar 2025
SFO - TPE
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.
Traveling to a place near Decatur?
Book flights to Decatur if you plan to visit one of these locationsMattoon
Effingham
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Other flights to Decatur
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San Francisco and Decatur flights
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Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 7,457,451 searches. Data last updated October 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$349 | Average$476 | FlexibilityNo cancel fee | On-time69% |