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$104+ 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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$211
(CheapOair)

One-way from

$104
(FlightHub)

Popular in

December

Cheapest in

February

Average price

$357
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. 5% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This CheapOair deal was found by Cheapflights users on 7/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/56:30 amSMF - ORD
1 stop8h 29mSpirit Airlines
Mon 9/88:15 amORD - SMF
1 stop15h 26mSpirit Airlines
Deal found 7/29$211
This Alaska Airlines deal was found by Cheapflights users on 7/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2110:58 amSMF - ORD
1 stop25h 52mAlaska Airlines
Wed 11/129:20 amORD - SMF
1 stop15h 33mAlaska Airlines
Deal found 7/29$224
This CheapOair deal was found by Cheapflights users on 7/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/73:44 pmSMF - ORD
1 stop27h 22mMultiple Airlines
Tue 8/127:08 amORD - SMF
1 stop5h 58mMultiple Airlines
Deal found 7/28$235
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/73:30 pmSMF - STL
1 stop23h 19mFrontier
Wed 12/107:43 pmSTL - SMF
1 stop17h 58mFrontier
Deal found 7/30$245
This Frontier deal was found by Cheapflights users on 7/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:06 pmSMF - ORD
1 stop9h 53mFrontier
Sun 9/216:00 amORD - SMF
1 stop7h 21mFrontier
Deal found 7/30$258
This FlightHub deal was found by Cheapflights users on 7/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:11 pmSMF - MDW
1 stop8h 27mFrontier
Sun 11/24:29 pmMDW - SMF
1 stop20h 57mFrontier
Deal found 7/30$265
This Mytrip deal was found by Cheapflights users on 7/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:30 amSMF - RFD
1 stop10h 22mMultiple Airlines
Sun 9/218:37 pmRFD - SMF
1 stop14h 01mMultiple Airlines
Deal found 7/29$268
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Tue 8/267:00 amSMF - PIA
1 stop7h 43mUnited Airlines
Tue 9/23:55 pmPIA - SMF
1 stop9h 03mUnited Airlines
Deal found 7/28$289
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/256:30 amSMF - MDW
3 stops32h 13mMultiple Airlines
Mon 9/297:03 pmMDW - SMF
1 stop15h 35mMultiple Airlines
Deal found 7/28$292
This Delta deal was found by Cheapflights users on 7/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/306:30 amSMF - STL
2 stops9h 32mDelta
Wed 10/12:31 pmSTL - SMF
2 stops9h 26mDelta
Deal found 7/29$314
This Southwest deal was found by Cheapflights users on 7/29. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2411:15 amSMF - STL
Nonstop3h 40mSouthwest
Wed 10/85:40 pmSTL - SMF
Nonstop4h 15mSouthwest
Deal found 7/29$317
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:10 amSMF - MDW
Nonstop3h 55mSouthwest
Sat 8/301:35 pmMDW - SMF
Nonstop4h 20mSouthwest
Deal found 7/28$317

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 July 30, 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

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 9/5

6:30 am-4:59 pm

1 stop8h 29m

Chicago O'Hare Intl

Mon 9/8

8:15 am-9:41 pm

1 stop15h 26m

$211

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 10/21

10:58 am-2:50 pm

1 stop25h 52m

Chicago O'Hare Intl

Tue 11/11

2:54 pm-10:53 pm

1 stop9h 59m

$224

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Wed 8/13

8:25 pm-4:50 am

1 stop6h 25m

Chicago O'Hare Intl

Sun 8/17

9:56 pm-5:46 pm

1 stop21h 50m

$235

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sun 12/7

3:30 pm-4:49 pm

1 stop23h 19m

Lambert-St Louis

Wed 12/10

7:43 pm-11:41 am

1 stop17h 58m

$245

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 9/19

12:06 pm-11:59 pm

1 stop9h 53m

Chicago O'Hare Intl

Sun 9/21

6:00 am-11:21 am

1 stop7h 21m

$258

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Thu 10/30

12:11 pm-10:38 pm

1 stop8h 27m

Chicago Midway

Sun 11/2

4:29 pm-11:26 am

1 stop20h 57m

$265

SacramentoChicago

SMF - RFD

SMFRFD

Sacramento Intl

Thu 9/18

6:30 am-6:52 pm

1 stop10h 22m

Chicago Greater Rockford

Sun 9/21

8:37 pm-8:38 am

1 stop14h 01m

$268

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Tue 8/26

7:00 am-4:43 pm

1 stop7h 43m

Greater Peoria

Tue 9/2

3:55 pm-10:58 pm

1 stop9h 03m

$289

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Thu 9/25

6:30 am-4:43 pm

3 stops32h 13m

Chicago Midway

Mon 9/29

7:03 pm-8:38 am

1 stop15h 35m

$292

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/30

6:30 am-6:02 pm

2 stops9h 32m

Lambert-St Louis

Wed 10/1

2:31 pm-9:57 pm

2 stops9h 26m

$314

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 45 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 $321). 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 July 30, 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 July 30, 2025.

The most flights from SMF to USIL are scheduled on a Monday (9 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

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 July 30, 2025.
See what other customers who have flown with Alaska Airlines, Southwest, and Delta from Sacramento to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,611 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Spirit Airlines, which is currently one of the cheapest options available, starting at $104. Hawaiian Airlines flights start at $112 while deals on Frontier start at $123 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: Qatar Airways (93%), American Airlines (82%), Air Canada (78%).

  • What are the cheapest flights from Sacramento to Illinois?

    Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $1,463, our data indicates the cheapest price to be $117. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $123.

  • 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 $321). 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.

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Alternative routes for Sacramento to Illinois

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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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$144Average$273FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$149Average$272FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$195Average$486FlexibilityNo cancel feeOn-time71%
DeltaCheapest$295Average$455FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$324Average$529FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$381Average$489FlexibilityNo cancel feeOn-time63%

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