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Cheap flights from San Francisco to Decatur from $374

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Decatur departing on 9/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco to Decatur

Cheap round-trip flights

United Airlines Logo
11:10 pm - 8:56 amSFO-DEC
7h 46m1 stop
United Airlines Logo
6:55 pm - 11:59 pmDEC-SFO
7h 04m1 stop
$374United Airlines
Find Deal
Fri, Sep 5 - Thu, Sep 25
United Airlines Logo
12:55 pm - 8:56 amSFO-DEC
18h 01m2 stops
United Airlines Logo
6:55 pm - 11:59 pmDEC-SFO
7h 04m1 stop
$422United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
8:25 am - 8:56 amSFO-DEC
22h 31m2 stops
United Airlines Logo
9:42 am - 11:10 pmDEC-SFO
15h 28m2 stops
$479United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
United Airlines Logo
5:41 pm - 8:56 amSFO-DEC
13h 15m2 stops
United Airlines Logo
6:55 pm - 11:59 pmDEC-SFO
7h 04m1 stop
$547United Airlines
Find Deal
Fri, Sep 5 - Thu, Sep 25

United Airlines flights from San Francisco to Decatur, Illinois

Our best United Airlines deals on San Francisco to Decatur, Illinois flight tickets
United Airlines
Sep 5
SFO11:10 pmSan Francisco
7h 46m
1 stop
DEC8:56 amDecatur Arpt
Sep 25
DEC6:55 pmDecatur Arpt
7h 04m
1 stop
SFO11:59 pmSan Francisco
$374
Find similar
United Airlines
Sep 10
SFO12:55 pmSan Francisco
18h 01m
2 stops
DEC8:56 amDecatur Arpt
Sep 17
DEC6:55 pmDecatur Arpt
7h 04m
1 stop
SFO11:59 pmSan Francisco
$422
Find similar
United Airlines
Sep 10
SFO8:25 amSan Francisco
22h 31m
2 stops
DEC8:56 amDecatur Arpt
Sep 17
DEC9:42 amDecatur Arpt
15h 28m
2 stops
SFO11:10 pmSan Francisco
$479
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Decatur, Illinois 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, momondo users made 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from San Francisco to Decatur, Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 9/5

11:10 pm-8:56 am

1 stop7h 46m

Decatur Arpt

Thu 9/25

6:55 pm-11:59 pm

1 stop7h 04m

$374

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Wed 9/10

12:55 pm-8:56 am

2 stops18h 01m

Decatur Arpt

Wed 9/17

6:55 pm-11:59 pm

1 stop7h 04m

$422

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Wed 9/10

8:25 am-8:56 am

2 stops22h 31m

Decatur Arpt

Wed 9/17

9:42 am-11:10 pm

2 stops15h 28m

$479

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 9/5

5:41 pm-8:56 am

2 stops13h 15m

Decatur Arpt

Thu 9/25

6:55 pm-11:59 pm

1 stop7h 04m

$547

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Tue 8/19

6:30 am-8:56 am

1 stop24h 26m

$387

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Tue 8/19

12:55 pm-5:59 pm

2 stops27h 04m

$486

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 8/22

6:30 am-8:56 am

1 stop24h 26m

$497

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 8/22

6:50 pm-8:56 am

2 stops36h 06m

$506

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Thu 8/21

12:43 am-5:59 pm

2 stops15h 16m

$821

San FranciscoDecatur

SFO - DEC

SFODEC

San Francisco

Fri 8/22

6:30 am-8:56 am

3 stops24h 26m

$2,310

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Decatur from

How to get the cheapest flight ticket from San Francisco to Decatur, Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Decatur, Illinois?

The cheapest day to depart on your flight to Decatur, Illinois is on a Saturday when prices can be found for as low as $394. This is often the case because there is less demand to fly during this day of the week. Flights from San Francisco to Decatur, Illinois on a Thursday will generally be more expensive and average around $573. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Decatur, Illinois?

In the evening is the cheapest time of day to fly from San Francisco to Decatur, Illinois when you can find flight prices for as low as $388. Flying to Decatur, Illinois in the evening is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Decatur, Illinois, so prices are often more expensive at around $538 per ticket.

When to book flights from San Francisco to Decatur, Illinois

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Decatur, Illinois according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Decatur, Illinois (SFO to DEC) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Decatur, Illinois

Best Price Found

$387

Fastest flight time

7h 46m

Direct flights

None

Airports in Decatur, Illinois

1 airport
The best one-way flight to Decatur, Illinois from San Francisco in the past 72 hours is $387. The best round-trip flight deal from San Francisco to Decatur, Illinois found on momondo in the last 72 hours is $374.
The fastest flight from San Francisco to Decatur, Illinois takes 7h 46m
There are no direct flights from San Francisco to Decatur, Illinois. Popular non-direct route for this connection is San Francisco Airport - Decatur Arpt Airport.
There is 1 airport near Decatur, Illinois: Decatur Arpt (DEC)
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  • How far is San Francisco to Decatur Arpt by plane?

    San Francisco and Decatur Arpt are 1795.0 mi apart from one another. 7h 46m is a normal flight duration for this route.

  • When did momondo last update prices for flights from San Francisco Airport to Decatur Arpt Airport?

    Prices for flights from San Francisco Airport to Decatur Arpt Airport are updated daily.

  • How many operators does momondo search for flights from San Francisco Airport to Decatur Arpt Airport?

  • How old do you have to be to fly from San Francisco Airport to Decatur Arpt Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Decatur Arpt Airport.

  • What documentation or ID do you need to fly to Decatur Arpt Airport?

    The required travel and health documents for your Decatur Arpt Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Decatur Arpt Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Decatur, Illinois?

Best airlines flying from San Francisco to Decatur, Illinois

Compare and see reviews for airlines that fly from San Francisco to Decatur, Illinois with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $373Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

Traveling to a place near Decatur?

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

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Decatur?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from San Francisco to Decatur for you.

Can I find flights from San Francisco to Decatur with flexible booking policies on momondo?

momondo does allow users to show only those flights to Decatur from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Decatur?

momondo provides multiple filters to help you find the best flight to Decatur from San Francisco. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from San Francisco to Decatur right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Decatur from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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