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$251+ Cheap flights from Decatur, IL to San Francisco (DEC - SFO)

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — SFO
feb. 4 — feb. 111
mar. 2/4
mar. 2/11
1 adult, Economy
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Cheap flight deals from Decatur to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) to San Francisco (SFO). 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 enero 30, 2025.

Round-trip from

$374
(United Airlines)

One-way from

$251
(United Airlines)
From Decatur Arpt to San Francisco
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One-way flight from Decatur Arpt to San Francisco
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Find flight deals from Decatur to San Francisco

Cheapest flights from Decatur to San Francisco
Explore the most affordable flight options available from Decatur to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 30, 2025.

This United Airlines deal was found by Cheapflights users on 1/30. 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.
mar. 3/253:00 pmDEC - SFO
1 stop8h 14mUnited Airlines
mar. 4/810:46 pmSFO - DEC
1 stop8h 08mUnited Airlines
Deal found 1/30$374

Find flights from Decatur to San Francisco within your budget

Customize your flight search to find flights from Decatur to San Francisco 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 enero 30, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DecaturSan Francisco

DEC - SFO

DECSFO

Decatur Arpt

mar. 3/25

3:00 pm-9:14 pm

1 stop8h 14m

San Francisco

mar. 4/8

10:46 pm-8:54 am

1 stop8h 08m

$374

DecaturSan Francisco

DEC - SFO

DECSFO

Decatur Arpt

jue. 5/1

2:59 pm-10:11 am

1 stop21h 12m

$251

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/30

Best time to book a flight from Decatur to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Decatur 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.

Travel insights for flights from Decatur to San Francisco

Get recent, data-driven insights about flights from Decatur to San Francisco including ideal travel times, pricing trends, and more.

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

Currently, January is the cheapest month in which you can book a flight from Decatur, Illinois to San Francisco (average of $276). Flying from Decatur, Illinois to San Francisco in June is currently the most expensive (average of $405). 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.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated enero 30, 2025.
United Airlines
7.4
Good
8,906 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.7

Crew

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

United Airlines
7.4
Good
8,906 reviews
United Airlines
7.4
Good
8,906 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Food

6.7

Crew

8.1

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YVR - SFO

It was a good experience. The flight took 45 minutes longer to fly and all passengers had to wait inside the plane till the technical issue was fixed. Overall it was a good experience.

Related info for your journey

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

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

    Flying on United Airlines is currently your cheapest option to San Francisco, with prices starting at $374.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Decatur to San Francisco 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 Decatur, Illinois to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Decatur, Illinois to San Francisco (average of $276). Flying from Decatur, Illinois to San Francisco in June is currently the most expensive (average of $405). 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
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Elk Grove
Vallejo
Newark
Alameda
Campbell
Pacific Grove

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Top airline flying from Decatur to San Francisco

Discover the top airline that operate flights from Decatur to San Francisco. 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 enero 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$283Average$413FlexibilityNo cancel feeOn-time69%
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