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Illinois

$119+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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Cheap flight deals from Sacramento to Illinois

Keep the following information in mind while searching for Sacramento to Illinois flight deals. Data was last updated March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$242
(United Airlines)

One-way from

$119
(United Airlines)

Popular in

December

Cheapest in

May

Average price

$478
Provider with most accurate pricing for Sacramento Intl-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Sacramento Intl-Chicago (CHI) flights.
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From Sacramento Intl to Illinois
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One-way flight from Sacramento Intl to Illinois
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Highest demand for flights based on searches. 7% potential increase in price ($34 potential increase over avg. RT price).
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Cheapest flight prices on average. 0% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/24. 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
Tue 6/31:42 pmSTL - SMF
1 stop5h 54mUnited Airlines
Deal found 3/24$242
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/212:11 pmSMF - STL
1 stop9h 05mAmerican Airlines
Sun 5/45:26 amSTL - SMF
1 stop6h 50mAmerican Airlines
Deal found 3/25$247
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/811:12 pmSMF - STL
1 stop8h 23mDelta
Tue 5/133:40 pmSTL - SMF
1 stop9h 15mDelta
Deal found 3/25$257
This CheapOair deal was found by Cheapflights users on 3/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/51:18 pmSMF - ORD
1 stop13h 52mMultiple Airlines
Thu 5/89:02 pmORD - SMF
1 stop14h 30mMultiple Airlines
Deal found 3/25$265
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/127:34 pmSMF - ORD
2 stops32h 11mSpirit Airlines
Mon 4/144:55 pmORD - SMF
2 stops21h 27mSpirit Airlines
Deal found 3/25$268
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1311:09 amSMF - PIA
1 stop8h 10mAmerican Airlines
Tue 5/206:10 amPIA - SMF
1 stop6h 23mAmerican Airlines
Deal found 3/25$284
This Frontier deal was found by Cheapflights users on 3/24. 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.
Sun 4/137:59 pmSMF - MDW
1 stop7h 21mFrontier
Thu 4/176:45 amMDW - SMF
1 stop7h 47mFrontier
Deal found 3/24$288
This Mytrip deal was found by Cheapflights users on 3/25. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/249:38 amSMF - RFD
1 stop9h 08mMultiple Airlines
Sun 4/279:36 pmRFD - SMF
1 stop22h 53mMultiple Airlines
Deal found 3/25$292
This Hawaiian Airlines deal was found by Cheapflights users on 3/25. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2212:58 pmSMF - ORD
1 stop7h 01mHawaiian Airlines
Tue 4/295:56 pmORD - SMF
1 stop7h 41mHawaiian Airlines
Deal found 3/25$294
This Delta deal was found by Cheapflights users on 3/25. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1012:25 pmSMF - ORD
1 stop9h 34mDelta
Wed 5/142:25 pmORD - SMF
1 stop9h 14mDelta
Deal found 3/25$295
This Frontier deal was found by Cheapflights users on 3/24. 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.
Sun 4/137:59 pmSMF - ORD
1 stop6h 55mFrontier
Thu 4/176:45 amORD - SMF
1 stop7h 47mFrontier
Deal found 3/24$298
This Alaska Airlines deal was found by Cheapflights users on 3/24. 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.
Tue 4/151:57 pmSMF - ORD
2 stops13h 43mAlaska Airlines
Wed 4/167:40 amORD - SMF
1 stop17h 51mAlaska Airlines
Deal found 3/24$300

Cheapflights Fare Finder

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 March 26, 2025.
Use the filters below to find and compare flights from Sacramento to Illinois that are best for you.

Fly from

Sacramento

Fly to

Illinois

Route

Depart

Return

Price

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 5/27

2:11 pm-10:45 pm

1 stop6h 34m

Lambert-St Louis

Tue 6/3

1:42 pm-5:36 pm

1 stop5h 54m

$242

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 5/2

12:11 pm-11:16 pm

1 stop9h 05m

Lambert-St Louis

Sun 5/4

5:26 am-10:16 am

1 stop6h 50m

$247

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 5/8

11:12 pm-9:35 am

1 stop8h 23m

Lambert-St Louis

Tue 5/13

3:40 pm-10:55 pm

1 stop9h 15m

$257

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Mon 5/5

1:18 pm-5:10 am

1 stop13h 52m

Chicago O'Hare Intl

Thu 5/8

9:02 pm-9:32 am

1 stop14h 30m

$265

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 4/12

7:34 pm-5:45 am

2 stops32h 11m

Chicago O'Hare Intl

Mon 4/14

4:55 pm-12:22 pm

2 stops21h 27m

$268

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Tue 5/13

11:09 am-9:19 pm

1 stop8h 10m

Greater Peoria

Tue 5/20

6:10 am-10:33 am

1 stop6h 23m

$284

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sun 4/13

7:59 pm-5:20 am

1 stop7h 21m

Chicago Midway

Thu 4/17

6:45 am-12:32 pm

1 stop7h 47m

$288

SacramentoChicago

SMF - RFD

SMFRFD

Sacramento Intl

Thu 4/24

9:38 am-8:46 pm

1 stop9h 08m

Chicago Greater Rockford

Sun 4/27

9:36 pm-6:29 pm

1 stop22h 53m

$292

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 4/22

12:58 pm-9:59 pm

1 stop7h 01m

Chicago O'Hare Intl

Tue 4/29

5:56 pm-11:37 pm

1 stop7h 41m

$294

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 5/10

6:30 am-5:29 pm

1 stop8h 59m

Chicago O'Hare Intl

Tue 5/13

2:25 pm-9:39 pm

1 stop9h 14m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

Showing 1-10 of 50 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Sacramento to Illinois

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 March 26, 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.

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 March 26, 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.
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Southwest
8.1
Very good
4,274 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
Hawaiian Airlines
7.9
Good
2,330 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,274 reviews

Crew

8.6

Boarding

8.2

Overall

8.1

Food

7.1

Comfort

8.1

Entertainment

7.6

Reviews

1 / 20
10.0
Excellent

Merlyn,Feb 2025

LAX - SMF

New Terminal is neat, lost of stores and places to catch a bite.

Related info for your journey

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

  • What airport do you fly from for flights from Sacramento to Illinois?

    Most people fly from Sacramento Intl (SMF) if they book a flight from Sacramento to Illinois. Sacramento Intl is conveniently located just 9.4 mi from Sacramento’s city center.

  • What are the cheapest airlines to fly from Sacramento to Illinois one-way?

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $119. Alaska Airlines flights start at $123 while deals on American Airlines start at $124 one-way.

  • What are the most popular routes from Sacramento to Illinois?

    The most popular flight routes from Sacramento to Illinois are Sacramento Intl - Chicago O'Hare Intl, Sacramento Intl - Chicago Midway and Sacramento Intl - Lambert-St Louis.

  • What are the most reliable airlines from Sacramento to Illinois?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Sacramento to Illinois on time: Lufthansa (95%), United Airlines (94%), Air Canada (92%).

  • What are the cheapest flights from Sacramento to Illinois?

    Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $1,272, our data indicates the cheapest price to be $153. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $151.

  • Can I find deals for flights from Sacramento to Illinois that include hotel bookings?

    Yes. In addition to deals on Sacramento to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sacramento to Illinois?

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

  • Can I find deals for business class flights from Sacramento to Illinois?

    Yes. Cheapflights offers flight deals from Sacramento to Illinois 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 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.

See more FAQs

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Alternative routes for Sacramento to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Sacramento to Illinois

Discover the top 6 airlines that operate flights from Sacramento to Illinois. 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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$245FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$159Average$286FlexibilityNo cancel feeOn-time65%
DeltaCheapest$221Average$612FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$258Average$498FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$326Average$572FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$384Average$481FlexibilityNo cancel feeOn-time63%
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