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Illinois

$84+ 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 2/27. Fares are subject to change and may not be available on all flights or dates of travel.
SMF — ORD
feb. 28 — mar. 71
sáb. 2/28
sáb. 3/7
1 adult, Economy
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Cheap 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 enero 29, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
mar. 2/177:40 pm
SMF
-
ORD
1 stop26h 19m
Hawaiian Airlines
jue. 2/198:20 am
ORD
-
SMF
1 stop8h 10m
Hawaiian Airlines
Deal found 1/27$258
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 2/246:15 pm
SMF
-
ORD
1 stop27h 44m
Alaska Airlines
mar. 3/37:00 am
ORD
-
SMF
1 stop9h 00m
Alaska Airlines
Deal found 1/27$260
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
lun. 3/210:53 am
SMF
-
ORD
2 stops21h 58m
Frontier
mié. 3/118:55 pm
ORD
-
SMF
1 stop13h 18m
Frontier
Deal found 1/27$261
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 2/177:40 pm
SMF
-
ORD
1 stop26h 19m
Alaska Airlines
sáb. 3/78:20 am
ORD
-
SMF
1 stop12h 39m
Alaska Airlines
Deal found 1/27$263
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
lun. 3/210:53 am
SMF
-
ORD
2 stops21h 58m
Frontier
jue. 3/127:39 pm
ORD
-
SMF
1 stop22h 17m
Frontier
Deal found 1/27$264
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
lun. 4/611:46 am
SMF
-
ORD
2 stops46h 53m
Frontier
mié. 4/157:21 pm
ORD
-
SMF
1 stop17h 46m
Frontier
Deal found 1/27$266
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/3011:51 am
SMF
-
ORD
1 stop15h 08m
Frontier
vie. 4/37:45 pm
ORD
-
SMF
1 stop13h 47m
Frontier
Deal found 1/28$267
This Delta deal was found by Cheapflights users on 1/27. 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.
sáb. 2/216:00 am
SMF
-
MDW
1 stop8h 14m
Delta
lun. 3/21:49 pm
MDW
-
SMF
1 stop9h 09m
Delta
Deal found 1/27$270
This Delta deal was found by Cheapflights users on 1/27. 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.
mié. 2/182:50 pm
SMF
-
ORD
1 stop7h 02m
Delta
lun. 3/23:59 pm
ORD
-
SMF
1 stop6h 59m
Delta
Deal found 1/27$270
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
vie. 3/1311:51 am
SMF
-
ORD
1 stop14h 58m
Multiple Airlines
mié. 3/1812:05 pm
ORD
-
SMF
2 stops29h 51m
Multiple Airlines
Deal found 1/27$271
This Kiwi.com deal was found by Cheapflights users on 1/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 2/2312:08 pm
SMF
-
ORD
2 stops52h 10m
Multiple Airlines
jue. 3/54:16 pm
ORD
-
SMF
1 stop20h 50m
Multiple Airlines
Deal found 1/28$272
This Alaska Airlines deal was found by Cheapflights users on 1/27. 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.
mar. 2/177:40 pm
SMF
-
ORD
1 stop26h 19m
Alaska Airlines
vie. 3/63:07 pm
ORD
-
SMF
1 stop28h 31m
Alaska Airlines
Deal found 1/27$273

Find flight deals from Sacramento to Illinois

Keep the following information in mind while searching for Sacramento to Illinois flight deals. Data was last updated enero 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$258
(Kiwi.com)

One-way from

$84
(Kiwi.com)

Popular in

November

Cheapest in

February

Average price

$385
Provider with most accurate pricing for San Francisco-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Chicago (CHI) flights.
Search Deals
From Sacramento Intl to Illinois
Search Deals
One-way flight from Sacramento Intl to Illinois
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 29, 2026.
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

vie. 3/13

11:07 pm-9:10 am

1 stop8h 03m

Chicago O'Hare Intl

mié. 3/18

1:57 pm-9:55 pm

1 stop9h 58m

$270

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

mié. 4/8

1:17 pm-11:52 pm

1 stop8h 35m

Chicago O'Hare Intl

lun. 4/13

12:46 pm-8:15 pm

1 stop9h 29m

$270

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

mié. 3/18

11:07 pm-9:10 am

1 stop8h 03m

Chicago O'Hare Intl

lun. 3/23

7:10 pm-11:42 pm

1 stop6h 32m

$270

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

sáb. 2/28

6:00 am-4:14 pm

1 stop8h 14m

Chicago Midway

lun. 3/2

1:29 pm-11:26 pm

2 stops11h 57m

$275

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

mié. 3/18

11:07 pm-8:53 am

1 stop7h 46m

Chicago Midway

lun. 3/23

1:10 pm-11:08 pm

2 stops11h 58m

$275

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

sáb. 3/7

2:50 pm-11:52 pm

1 stop7h 02m

Chicago O'Hare Intl

lun. 3/9

1:19 pm-11:08 pm

2 stops11h 49m

$275

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

vie. 2/27

6:15 pm-2:58 pm

1 stop18h 43m

Chicago O'Hare Intl

lun. 3/2

8:20 am-12:10 pm

1 stop29h 50m

$283

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

mié. 4/8

7:17 am-7:02 pm

1 stop9h 45m

Chicago O'Hare Intl

lun. 4/13

7:59 pm-10:58 pm

1 stop28h 59m

$283

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

vie. 3/13

5:09 pm-11:56 pm

1 stop28h 47m

Chicago O'Hare Intl

mar. 3/17

7:40 am-2:30 pm

1 stop8h 50m

$285

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

mar. 2/24

8:30 am-1:51 pm

1 stop27h 21m

Lambert-St Louis

mar. 3/3

7:00 am-2:00 pm

1 stop9h 00m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, April is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $126). Flying from Sacramento to Illinois in December is currently the most expensive (average of $233). 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 enero 29, 2026.

A simple way to save on the total cost of your ticket is to fly from Sacramento to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 9% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Sacramento to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to Illinois. Price data was last updated on January 24, 2026.

Travelers seeking maximum savings on their Sacramento to Illinois flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

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 enero 29, 2026.

The most flights from SMF to USIL are scheduled on a Monday (6 on average). You will have fewer flight options on Monday, 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 enero 29, 2026.
See what other customers who have flown with Southwest, Delta, and United 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
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Southwest
8.0
Very good
4,267 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Delta
7.9
Good
8,128 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
United Airlines
7.4
Good
9,215 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
American Airlines
7.2
Good
11,205 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.
Spirit Airlines
6.3
Okay
8,393 reviews
Southwest
8.0
Very good
4,267 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

William Drew,Nov 2025

SJC - HNL

Flight crew was amazing! Usually they're very good on Southwest, but this crew went above and beyond. I have never ever seen so many rounds of drink service on a flight before.

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 8h 03m. Airlines will cover a distance of 1776 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 Spirit Airlines, which is currently one of the cheapest options available, starting at $41. American Airlines flights start at $82 while deals on Frontier start at $110 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 (80%), Air Canada (78%), United Airlines (74%).

  • What are the cheapest flights from Sacramento to Illinois?

    Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $831, our data indicates the cheapest price to be $139. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $229.

  • 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, April is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $126). Flying from Sacramento to Illinois in December is currently the most expensive (average of $233). 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 7 airlines flying from Sacramento to Illinois

Discover the top 7 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 enero 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$154Average$255FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$166Average$229FlexibilityNo cancel feeOn-time65%
DeltaCheapest$198Average$395FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$235Average$357FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$273Average$466FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$286Average$489FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$332Average$492FlexibilityNo cancel feeOn-time63%

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