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$81+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$207
(Kiwi.com)

One-way from

$81
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$307
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. 6% potential increase in price ($23 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 September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:21 pmSMF - STL
1 stop18h 46mFrontier
Sun 11/27:45 pmSTL - SMF
1 stop17h 53mFrontier
Deal found 9/11$207
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1011:17 amSMF - STL
1 stop19h 50mFrontier
Wed 11/127:45 pmSTL - SMF
1 stop17h 41mFrontier
Deal found 9/9$211
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:00 amSMF - ORD
1 stop10h 55mMultiple Airlines
Mon 11/36:00 amORD - SMF
1 stop7h 38mMultiple Airlines
Deal found 9/9$211
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1411:17 amSMF - ORD
1 stop10h 58mFrontier
Wed 11/197:20 amORD - SMF
2 stops32h 54mFrontier
Deal found 9/8$213
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:35 amSMF - ORD
1 stop25h 13mMultiple Airlines
Sun 9/288:49 pmORD - SMF
2 stops36h 51mMultiple Airlines
Deal found 9/9$219
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/266:30 amSMF - MDW
1 stop12h 22mMultiple Airlines
Mon 9/297:03 pmMDW - SMF
1 stop14h 37mMultiple Airlines
Deal found 9/9$221
This Expedia deal was found by Cheapflights users on 9/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/248:35 amSMF - ORD
1 stop8h 16mMultiple Airlines
Wed 10/86:00 amORD - SMF
1 stop10h 03mMultiple Airlines
Deal found 9/9$221
This Cheapflightsfares deal was found by Cheapflights users on 9/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/186:30 amSMF - ORD
1 stop13h 02mSpirit Airlines
Mon 9/226:05 pmORD - SMF
1 stop15h 35mSpirit Airlines
Deal found 9/9$223
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/152:20 pmSMF - ORD
Nonstop4h 05mUnited Airlines
Wed 10/228:05 pmORD - SMF
Nonstop4h 38mUnited Airlines
Deal found 9/10$224
This Southwest deal was found by Cheapflights users on 9/10. 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 10/148:00 pmSMF - MDW
1 stop7h 00mSouthwest
Wed 10/226:25 pmMDW - SMF
Nonstop4h 30mSouthwest
Deal found 9/10$226
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/238:35 amSMF - ORD
1 stop10h 57mSpirit Airlines
Tue 9/3011:15 amORD - SMF
1 stop12h 26mSpirit Airlines
Deal found 9/9$226
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/23:11 pmSMF - ORD
2 stops16h 26mFrontier
Sat 10/48:25 amORD - SMF
1 stop28h 56mFrontier
Deal found 9/10$227

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 September 11, 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

Thu 10/30

2:56 pm-12:24 am

1 stop7h 28m

Chicago O'Hare Intl

Tue 11/4

2:54 pm-10:53 pm

1 stop9h 59m

$230

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Tue 10/28

6:15 am-12:15 pm

Nonstop4h 00m

Chicago Midway

Wed 10/29

12:40 pm-6:05 pm

2 stops7h 25m

$231

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 10/28

2:20 pm-11:40 pm

1 stop7h 20m

Chicago O'Hare Intl

Wed 10/29

2:50 pm-10:20 pm

2 stops9h 30m

$241

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 10/7

6:25 pm-8:30 am

2 stops12h 05m

Chicago O'Hare Intl

Tue 10/14

7:37 am-3:59 pm

1 stop10h 22m

$250

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 11/8

7:40 am-6:30 pm

1 stop8h 50m

Chicago Midway

Tue 11/11

9:35 am-3:35 pm

1 stop8h 00m

$254

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 3/3

11:59 pm-6:03 am

Nonstop4h 04m

Chicago O'Hare Intl

Wed 3/4

8:00 pm-10:35 pm

Nonstop4h 35m

$255

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 11/8

9:15 am-5:01 am

2 stops17h 46m

Chicago O'Hare Intl

Tue 11/11

2:54 pm-10:53 pm

1 stop9h 59m

$255

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Tue 9/30

12:12 pm-9:36 pm

1 stop7h 24m

Chicago Midway

Fri 10/3

1:43 pm-8:30 pm

1 stop8h 47m

$257

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 10/18

6:30 am-5:18 pm

1 stop8h 48m

Chicago O'Hare Intl

Sat 10/25

3:50 pm-8:16 pm

1 stop6h 26m

$257

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 11/8

6:00 am-6:25 pm

2 stops10h 25m

Chicago Midway

Tue 11/11

1:14 pm-9:51 pm

2 stops10h 37m

$261

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 60 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 September 11, 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 September 11, 2025.

The most flights from SMF to USIL are scheduled on a Monday (10 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

How much does it cost to fly round-trip from Sacramento to Illinois?

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 September 11, 2025.
See what other customers who have flown with Southwest, United Airlines, and American Airlines 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.
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Spirit Airlines
6.3
Okay
8,023 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Frontier
5.8
Fair
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Boarding

8.1

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

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.

  • How long is the flight from Sacramento to Illinois?

    Departing from Sacramento to Illinois will take you 4h. Airlines will cover a distance of 1785 mi. This flight may include one or multiple stops.

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

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $108. Hawaiian Airlines flights start at $108 while deals on United Airlines start at $109 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 (83%), Lufthansa (79%), American Airlines (73%).

  • What are the cheapest flights from Sacramento to Illinois?

    Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $873, our data indicates the cheapest price to be $123. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $165.

  • 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

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$148Average$263FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$166Average$274FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$247Average$485FlexibilityNo cancel feeOn-time71%
DeltaCheapest$295Average$460FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$307Average$530FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$344Average$491FlexibilityNo cancel feeOn-time63%

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