Illinois

$41+ Cheap flights from Sacramento (SMF) to Illinois

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 3/11. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Feb 10 — Feb 171
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Cheap flight deals from Sacramento to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Sacramento (SMF) to Illinois (USIL). 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 February 5, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$144
(FlightHub)

One-way from

$41
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$471
Provider with most accurate pricing for Sacramento Intl-Chicago (CHI) flight deals.
Provider most trusted by Cheapflights users for Sacramento Intl-Chicago (CHI) flights.
From Sacramento Intl to Illinois
One-way flight from Sacramento Intl to Illinois
Highest demand for flights based on searches. 7% potential increase in price ($38 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in February 2025

Find flight deals from Sacramento to Illinois

Cheapest flights from Sacramento to Illinois
Explore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2025.

This FlightHub deal was found by Cheapflights users on 2/3. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/61:22 pmSMF - STL
1 stop17h 54mFrontier
Mon 3/106:55 pmSTL - SMF
1 stop26h 04mFrontier
Deal found 2/3$144
This FlightHub deal was found by Cheapflights users on 2/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/119:42 amSMF - ORD
1 stop18h 51mSpirit Airlines
Wed 4/167:41 amORD - SMF
1 stop6h 11mSpirit Airlines
Deal found 2/4$191
This Booking.com deal was found by Cheapflights users on 2/5. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/227:42 amSMF - ORD
1 stop12h 08mMultiple Airlines
Sun 2/236:50 amORD - SMF
1 stop7h 37mMultiple Airlines
Deal found 2/5$206
This Frontier deal was found by Cheapflights users on 2/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/101:32 pmSMF - ORD
1 stop8h 43mFrontier
Thu 4/176:45 amORD - SMF
1 stop7h 47mFrontier
Deal found 2/4$230
This United Airlines deal was found by Cheapflights users on 2/4. 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 5/272:11 pmSMF - STL
1 stop6h 34mUnited Airlines
Fri 5/305:27 pmSTL - SMF
1 stop7h 08mUnited Airlines
Deal found 2/4$242
This Booking.com deal was found by Cheapflights users on 2/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/410:33 amSMF - MDW
1 stop26h 15mFrontier
Fri 5/96:15 amMDW - SMF
1 stop8h 13mFrontier
Deal found 2/3$246
This American Airlines deal was found by Cheapflights users on 2/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/311:59 pmSMF - STL
1 stop7h 02mAmerican Airlines
Sat 5/107:05 pmSTL - SMF
1 stop7h 26mAmerican Airlines
Deal found 2/4$247
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/62:07 pmSMF - STL
1 stop7h 52mAlaska Airlines
Sun 3/97:00 amSTL - SMF
1 stop8h 12mAlaska Airlines
Deal found 2/3$256
This Delta deal was found by Cheapflights users on 2/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:10 amSMF - STL
1 stop8h 43mDelta
Sun 3/26:59 pmSTL - SMF
1 stop6h 49mDelta
Deal found 2/4$267
This Mytrip deal was found by Cheapflights users on 2/4. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/44:20 pmSMF - STL
3 stops22h 25mMultiple Airlines
Tue 3/115:38 pmSTL - SMF
3 stops41h 04mMultiple Airlines
Deal found 2/4$305
This American Airlines deal was found by Cheapflights users on 2/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/510:15 pmSMF - SPI
2 stops10h 41mAmerican Airlines
Wed 3/1211:16 amSPI - SMF
2 stops10h 55mAmerican Airlines
Deal found 2/4$311
This Southwest deal was found by Cheapflights users on 2/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/244:50 pmSMF - STL
1 stop6h 05mSouthwest
Thu 3/272:05 pmSTL - SMF
2 stops8h 20mSouthwest
Deal found 2/3$329

Find flights from Sacramento to Illinois within your budget

Customize your flight search to find flights from Sacramento to 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, Cheapflights users made 2,558,603 searches. Data last updated February 5, 2025.

Fly from

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Fly to

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Route

Depart

Return

Price

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 3/6

1:22 pm-9:16 am

1 stop17h 54m

Lambert-St Louis

Mon 3/10

6:55 pm-6:59 pm

1 stop26h 04m

$144

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 4/11

9:42 am-6:33 am

1 stop18h 51m

Chicago O'Hare Intl

Wed 4/16

7:41 am-11:52 am

1 stop6h 11m

$191

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 2/22

7:42 am-9:50 pm

1 stop12h 08m

Chicago O'Hare Intl

Sun 2/23

6:50 am-12:27 pm

1 stop7h 37m

$206

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 4/10

1:32 pm-12:15 am

1 stop8h 43m

Chicago O'Hare Intl

Thu 4/17

6:45 am-12:32 pm

1 stop7h 47m

$230

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 5/27

2:11 pm-10:45 pm

1 stop6h 34m

Lambert-St Louis

Fri 5/30

5:27 pm-10:35 pm

1 stop7h 08m

$242

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sun 5/4

10:33 am-2:48 pm

1 stop26h 15m

Chicago Midway

Fri 5/9

6:15 am-12:28 pm

1 stop8h 13m

$246

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 5/3

11:59 pm-9:01 am

1 stop7h 02m

Lambert-St Louis

Sat 5/10

7:05 pm-12:31 am

1 stop7h 26m

$247

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 3/6

2:07 pm-11:59 pm

1 stop7h 52m

Lambert-St Louis

Sun 3/9

7:00 am-1:12 pm

1 stop8h 12m

$256

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 2/27

6:10 am-4:53 pm

1 stop8h 43m

Lambert-St Louis

Sun 3/2

6:59 pm-11:48 pm

1 stop6h 49m

$267

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 3/4

4:20 pm-4:45 pm

3 stops22h 25m

Lambert-St Louis

Tue 3/11

5:38 pm-8:42 am

3 stops41h 04m

$305

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/5

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Best time to book a flight from Sacramento to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Sacramento 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 Sacramento to Illinois

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

What is the cheapest month to book a flight from Sacramento to Illinois?

Currently, August is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $245). Flying from Sacramento to Illinois in March is currently the most expensive (average of $323). 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.

What is the cheapest time of day to fly from SMF to IL?

Find hourly flight availability from Sacramento to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 5, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sacramento to Illinois as you normally would.

Weekly flight availability from Sacramento to Illinois

Explore weekly flight availability from Sacramento to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated February 5, 2025.

The most flights from SMF to USIL are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 on average).

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated February 5, 2025.
Get a feel of what it's like to fly with Southwest, Alaska Airlines and Delta from Sacramento to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
8.1
Very good