What is the cheapest airline that flies from Sacramento Intl to Illinois?

Southwest, United Airlines, and Frontier are the most popular carriers operating from Sacramento Intl to Illinois

How many flights depart from Sacramento to Illinois on average per day?

As of October 2026, 6 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 38% of daily flights taking off at noon.

What airlines fly to Illinois?

United Airlines, American Airlines and Southwest are the top three most popular airlines that fly to Illinois from Sacramento according to our data. United Airlines is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 7 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

How many flights depart from Sacramento to Illinois on average per week?

As of October 2026, there are 48 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Thu, with 31% of flights taking off on this day.

When did momondo last update prices for flights from Sacramento Intl Airport to Illinois?

Prices for flights from Sacramento Intl Airport to Illinois refresh daily.

How many operators does momondo search for flights from Sacramento Intl Airport to Illinois?

There are 6 operators available for flights from Sacramento Intl Airport to Illinois as of October 2026.

How old do you have to be to fly from Sacramento Intl Airport to Illinois?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sacramento Intl Airport to Illinois.

What documentation or ID do you need to fly to Illinois?

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$72 Cheap Flights from Sacramento to Illinois in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Sacramento to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

5:11 pm - 5:10 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

9h 59m2 stops Los Angeles Las Vegas Harry Reid Intl

10:00 pm - 10:15 amORD Chicago O'Hare Intl-SMF Sacramento Intl

14h 15m1 stop Los Angeles

$326Frontier

Tue, Nov 24 - Fri, Nov 27

6:15 am - 4:50 pmSMF Sacramento Intl-MDW Chicago Midway

8h 35m1 stop Minneapolis St Paul

1:02 pm - 9:46 pmMDW Chicago Midway-SMF Sacramento Intl

10h 44m1 stop Atlanta Hartsfield-Jackson

$327Delta

Thu, Dec 3 - Wed, Dec 9

9:17 am - 11:32 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

12h 15m2 stops Los Angeles Houston George Bush Intcntl

7:30 am - 8:21 amORD Chicago O'Hare Intl-SMF Sacramento Intl

26h 51m1 stop Las Vegas Harry Reid Intl

$328Frontier

Fri, Jan 8 - Sat, Jan 9

12:25 pm - 10:01 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

19h 36m2 stops Denver Intl Minneapolis St Paul

7:00 am - 9:45 amORD Chicago O'Hare Intl-SMF Sacramento Intl

28h 45m3 stops Denver Intl San Francisco Los Angeles

$331Multiple Airlines

Thu, Nov 26 - Thu, Dec 3

8:30 am - 6:40 pmSMF Sacramento Intl-MDW Chicago Midway

8h 10m2 stops Las Vegas Harry Reid Intl Louisville Intl

10:10 am - 4:45 pmMDW Chicago Midway-SMF Sacramento Intl

8h 35m1 stop Portland

$332Southwest

Wed, Jan 20 - Mon, Jan 25

7:40 am - 5:30 pmSMF Sacramento Intl-MDW Chicago Midway

7h 50m2 stops Las Vegas Harry Reid Intl Lambert-St Louis

11:55 am - 5:15 pmMDW Chicago Midway-SMF Sacramento Intl

7h 20m1 stop Denver Intl

$332Southwest

Sat, Jan 9 - Wed, Jan 13

12:45 pm - 11:55 pmSMF Sacramento Intl-MDW Chicago Midway

9h 10m1 stop Atlanta Hartsfield-Jackson

6:00 am - 5:05 pmMDW Chicago Midway-SMF Sacramento Intl

13h 05m2 stops Atlanta Hartsfield-Jackson Los Angeles

$332Delta

Thu, Jan 21 - Mon, Jan 25

6:30 am - 3:16 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

6h 46m1 stop Los Angeles

9:08 pm - 11:57 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 49mnonstop

$335American Airlines

Thu, Nov 26 - Thu, Dec 3

1:38 pm - 7:57 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 19mnonstop

6:52 am - 12:15 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

7h 23m1 stop Phoenix Sky Harbor Intl

$335American Airlines

Thu, Nov 26 - Wed, Dec 2

6:15 am - 2:55 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

6h 40m1 stop Minneapolis St Paul

2:13 pm - 9:55 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

9h 42m1 stop San Diego

$336Multiple Airlines

Fri, Nov 27 - Tue, Dec 1

Cheap last minute flights

Enter your travel dates to find the best prices.

12:04 pm - 12:21 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 17m1 stop Denver Intl

6:30 am - 11:04 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 34m1 stop Denver Intl

$335Frontier

Thu, Nov 5 - Wed, Nov 18

11:59 am - 12:21 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 22m1 stop Denver Intl

6:30 am - 11:04 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 34m1 stop Denver Intl

$338Frontier

Wed, Nov 4 - Tue, Nov 10

1:37 pm - 11:49 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 12m1 stop San Diego

6:30 am - 11:09 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 39m1 stop Denver Intl

$425Multiple Airlines

Thu, Nov 5 - Mon, Nov 9

1:37 pm - 11:49 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 12m1 stop San Diego

6:30 am - 11:09 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 39m1 stop Denver Intl

$430Multiple Airlines

Mon, Nov 2 - Thu, Nov 5

8:13 am - 6:53 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 40m1 stop San Diego

2:07 pm - 7:26 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

7h 19m1 stop Portland

$434Alaska Airlines

Sat, Oct 31 - Thu, Nov 5

1:37 pm - 11:49 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 12m1 stop San Diego

7:20 am - 12:41 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

7h 21m1 stop San Diego

$449Alaska Airlines

Sun, Nov 1 - Thu, Nov 5

6:13 am - 4:32 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 19m2 stops Minneapolis St Paul Detroit Metropolitan Wayne County

6:40 am - 8:02 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

15h 22m1 stop Seattle/Tacoma Intl

$450Delta

Wed, Nov 4 - Sat, Nov 21

9:18 am - 10:05 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 47m2 stops Los Angeles Salt Lake City

6:40 am - 8:02 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

15h 22m1 stop Seattle/Tacoma Intl

$480Delta

Thu, Nov 5 - Sat, Nov 21

11:15 am - 5:15 pmSMF Sacramento Intl-MDW Chicago Midway

4h 00mnonstop

10:00 am - 12:35 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$489Southwest

Wed, Nov 4 - Tue, Nov 10

11:15 am - 5:15 pmSMF Sacramento Intl-MDW Chicago Midway

4h 00mnonstop

10:00 am - 12:35 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$489Southwest

Wed, Nov 4 - Wed, Nov 11

Cheap direct flights

Enter your travel dates to find the best prices.

11:05 am - 5:05 pmSMF Sacramento Intl-MDW Chicago Midway

4h 00mnonstop

8:45 pm - 11:30 pmMDW Chicago Midway-SMF Sacramento Intl

4h 45mnonstop

$345Southwest

Thu, Dec 3 - Mon, Dec 7

7:00 am - 1:15 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 15mnonstop

7:55 pm - 10:41 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 46mnonstop

$357United Airlines

Fri, Nov 27 - Fri, Dec 4

1:44 pm - 8:03 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 19mnonstop

9:08 pm - 11:57 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 49mnonstop

$364American Airlines

Tue, Dec 1 - Sat, Dec 5

1:38 pm - 7:57 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 19mnonstop

9:08 pm - 11:57 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 49mnonstop

$364American Airlines

Thu, Nov 26 - Wed, Dec 2

10:52 am - 5:05 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 13mnonstop

9:00 am - 11:56 amORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 56mnonstop

$364United Airlines

Fri, Dec 25 - Tue, Jan 5

10:50 pm - 5:00 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 10mnonstop

10:05 am - 1:00 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 55mnonstop

$364American Airlines

Thu, Dec 3 - Mon, Dec 7

11:10 am - 5:10 pmSMF Sacramento Intl-MDW Chicago Midway

4h 00mnonstop

9:35 pm - 12:10 amMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$364Southwest

Wed, Dec 9 - Fri, Dec 18

11:05 am - 5:05 pmSMF Sacramento Intl-MDW Chicago Midway

4h 00mnonstop

8:45 pm - 11:30 pmMDW Chicago Midway-SMF Sacramento Intl

4h 45mnonstop

$364Southwest

Thu, Dec 3 - Wed, Dec 9

6:40 am - 12:35 pmSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

8:20 pm - 11:00 pmMDW Chicago Midway-SMF Sacramento Intl

4h 40mnonstop

$364Southwest

Wed, Feb 10 - Sat, Feb 13

2:12 pm - 8:29 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 17mnonstop

10:00 pm - 12:51 amORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 51mnonstop

$382United Airlines

Thu, Dec 17 - Tue, Dec 22

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Delta flights from Sacramento to Illinois

Our best Delta deals on Sacramento to Illinois flight tickets

Delta

Dec 3

SMF6:15 amSacramento Intl

8h 35m

1 stop

MDW4:50 pmChicago Midway

Dec 9

MDW1:02 pmChicago Midway

10h 44m

1 stop

SMF9:46 pmSacramento Intl

$327

Delta

Feb 3

SMF9:46 amSacramento Intl

8h 46m

2 stops

ORD8:32 pmChicago O'Hare Intl

Feb 6

ORD12:42 pmChicago O'Hare Intl

10h 58m

2 stops

SMF9:40 pmSacramento Intl

$337

Delta

Dec 4

SMF10:52 pmSacramento Intl

9h 36m

1 stop

MDW10:28 amChicago Midway

Dec 7

MDW10:24 amChicago Midway

11h 31m

2 stops

SMF7:55 pmSacramento Intl

$350

Frontier flights from Sacramento to Illinois

Our best Frontier deals on Sacramento to Illinois flight tickets

Frontier

Nov 24

SMF5:11 pmSacramento Intl

9h 59m

2 stops

ORD5:10 amChicago O'Hare Intl

Nov 27

ORD10:00 pmChicago O'Hare Intl

14h 15m

1 stop

SMF10:15 amSacramento Intl

$326

Frontier

Jan 8

SMF9:17 amSacramento Intl

12h 15m

2 stops

ORD11:32 pmChicago O'Hare Intl

Jan 9

ORD7:30 amChicago O'Hare Intl

26h 51m

1 stop

SMF8:21 amSacramento Intl

$328

Frontier

Dec 24

SMF11:37 amSacramento Intl

10h 49m

1 stop

ORD12:26 amChicago O'Hare Intl

Jan 1

ORD7:45 amChicago O'Hare Intl

30h 32m

2 stops

SMF12:17 pmSacramento Intl

$329

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Tue 11/24

5:11 pm-5:10 am

2 stops9h 59m

Chicago O'Hare Intl

Fri 11/27

10:00 pm-10:15 am

1 stop14h 15m

$326

SacramentoChicago

SMF Sacramento Intl - MDW Chicago Midway

SMFMDW

Sacramento Intl

Thu 12/3

6:15 am-4:50 pm

1 stop8h 35m

Chicago Midway

Wed 12/9

1:02 pm-9:46 pm

1 stop10h 44m

$327

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 1/8

9:17 am-11:32 pm

2 stops12h 15m

Chicago O'Hare Intl

Sat 1/9

7:30 am-8:21 am

1 stop26h 51m

$328

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Thu 11/26

12:25 pm-10:01 am

2 stops19h 36m

Chicago O'Hare Intl

Thu 12/3

7:00 am-9:45 am

3 stops28h 45m

$331

SacramentoChicago

SMF Sacramento Intl - MDW Chicago Midway

SMFMDW

Sacramento Intl

Wed 1/20

8:30 am-6:40 pm

2 stops8h 10m

Chicago Midway

Mon 1/25

10:10 am-4:45 pm

1 stop8h 35m

$332

SacramentoChicago

SMF Sacramento Intl - MDW Chicago Midway

SMFMDW

Sacramento Intl

Sat 1/9

7:40 am-5:30 pm

2 stops7h 50m

Chicago Midway

Wed 1/13

11:55 am-5:15 pm

1 stop7h 20m

$332

SacramentoChicago

SMF Sacramento Intl - MDW Chicago Midway

SMFMDW

Sacramento Intl

Thu 1/21

12:45 pm-11:55 pm

1 stop9h 10m

Chicago Midway

Mon 1/25

6:00 am-5:05 pm

2 stops13h 05m

$332

Quickest round-trip

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Thu 11/26

6:30 am-3:16 pm

1 stop6h 46m

Chicago O'Hare Intl

Thu 12/3

9:08 pm-11:57 pm

Nonstop4h 49m

$335

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Thu 11/26

1:38 pm-7:57 pm

Nonstop4h 19m

Chicago O'Hare Intl

Wed 12/2

6:52 am-12:15 pm

1 stop7h 23m

$335

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 11/27

6:15 am-2:55 pm

1 stop6h 40m

Chicago O'Hare Intl

Tue 12/1

2:13 pm-9:55 pm

1 stop9h 42m

$336

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Sacramento to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Sacramento is in January. Flight prices, which tend to average around $416, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $437.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Sacramento to Illinois is on a Tuesday when prices can be found for as low as $493. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $607. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Sacramento to Illinois during this time can be as low as $487. Flights at noon are often more expensive with an average ticket price of $556.

What is the cheapest Sacramento Intl to Illinois flight route?

Fly from Sacramento Intl to Chicago O'Hare Intl for the best Sacramento Intl - Illinois flight prices

How far in advance should I book a flight from Sacramento to Illinois?

You are more likely to see cheaper flights to Illinois from Sacramento when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $483 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Sacramento for as low as $403 on momondo.

What cabin class options are available on Sacramento to Illinois flights?

There are 4 cabin classes available to choose from on Sacramento to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Sacramento to Illinois flights?

You could potentially save up to 5% on your flight if you consider stops on a Sacramento to Illinois flight.

Cheap Sacramento to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Sacramento to Illinois

Best Price Found	$72
Fastest flight time	3h 35m
Direct flights	Every day
Airports in Illinois	98 airports

The best one-way flight to Illinois from Sacramento in the past 72 hours is $72. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $326.

The fastest flight from Sacramento to Illinois takes 3h 35m

Direct flights go from Sacramento to Illinois every day.

There are 98 airports in Illinois. From Sacramento there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Sacramento to Illinois

When did momondo last update prices for flights from Sacramento Intl Airport to Illinois?
Prices for flights from Sacramento Intl Airport to Illinois refresh daily.
How many operators does momondo search for flights from Sacramento Intl Airport to Illinois?
There are 6 operators available for flights from Sacramento Intl Airport to Illinois as of October 2026.
How old do you have to be to fly from Sacramento Intl Airport to Illinois?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sacramento Intl Airport to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Sacramento to Illinois?
momondo data reveals that the most frequently booked plane model on the route from Sacramento to Illinois is Boeing 737-800, representing 28.41% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 16.55%, Boeing 737 MAX 8 at 15.90%, and Boeing 737-900 at 13.58%.

Best airlines flying from Sacramento to Illinois

Compare and see reviews for airlines that fly from Sacramento to Illinois with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,694 reviews	Search Delta flights
Frontier	PriceFrom $188	Free Cancellation	Rating 5.5 2,516 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 13,135 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $339	Free Cancellation	Rating 7.0 12,212 reviews	Search American Airlines flights
United Airlines	PriceFrom $355	Free Cancellation	Rating 7.3 10,453 reviews	Search United Airlines flights
Southwest	PriceFrom $380	Free Cancellation	Rating 7.9 4,217 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Sacramento to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Sacramento to Illinois for you.

Can I find flights from Sacramento to Illinois with flexible booking policies on momondo?

Yes. All flights to Illinois from Sacramento on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Sacramento to Illinois?

Once you have performed a search for Sacramento to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Sacramento to Illinois right now. Can momondo alert me if prices change?

Price alerts on flights to Illinois from Sacramento are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.