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

Frontier, Alaska Airlines, and Southwest 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, 7 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 48% 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 52 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Wed, with 27% 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.

$99 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 - 11:00 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

15h 49m2 stops Los Angeles Phoenix Sky Harbor Intl

2:17 pm - 7:41 amORD Chicago O'Hare Intl-SMF Sacramento Intl

19h 24m2 stops Dallas/Fort Worth Las Vegas Harry Reid Intl

$354Frontier

Sat, Nov 21 - Thu, Nov 26

8:00 am - 5:00 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

7h 00m1 stop Los Angeles

8:21 pm - 11:01 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 40mnonstop

$354United Airlines

Wed, Nov 18 - Sat, Nov 21

10:56 am - 8:03 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

7h 07m1 stop San Diego

6:40 am - 11:30 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 50m1 stop Denver Intl

$354Multiple Airlines

Fri, Nov 20 - Fri, Nov 27

6:19 pm - 5:13 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 54m1 stop Las Vegas Harry Reid Intl

8:59 am - 11:04 amORD Chicago O'Hare Intl-SMF Sacramento Intl

28h 05m2 stops Dallas/Fort Worth Denver Intl

$355Frontier

Fri, Nov 6 - Tue, Nov 10

3:11 pm - 1:15 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

20h 04m1 stop San Diego

7:40 am - 2:15 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 35m1 stop San Diego

$356Alaska Airlines

Fri, Jan 8 - Sun, Jan 10

1:30 pm - 9:53 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

6h 23m1 stop Salt Lake City

9:30 am - 4:02 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 32m2 stops Minneapolis St Paul Salt Lake City

$358Delta

Sat, Jan 16 - Sat, Jan 23

1:00 pm - 11:46 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 46m1 stop Seattle/Tacoma Intl

9:30 am - 4:02 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 32m2 stops Minneapolis St Paul Salt Lake City

$358Delta

Fri, Jan 15 - Sat, Jan 23

6:19 pm - 5:13 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 54m1 stop Las Vegas Harry Reid Intl

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

7h 21m1 stop San Diego

$358Multiple Airlines

Fri, Nov 6 - Mon, Nov 9

2:15 pm - 8:31 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 16mnonstop

7:55 pm - 10:40 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 45mnonstop

$358United Airlines

Fri, Nov 20 - Mon, Nov 23

2:33 pm - 11:59 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

7h 26m1 stop San Diego

7:00 am - 6:19 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

13h 19m1 stop San Diego

$368Alaska Airlines

Wed, Dec 23 - Thu, Dec 31

Cheap last minute flights

Enter your travel dates to find the best prices.

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

10h 22m1 stop Denver Intl

6:30 am - 11:10 amORD Chicago O'Hare Intl-SMF Sacramento Intl

6h 40m1 stop Denver Intl

$360Frontier

Tue, Oct 27 - Sat, Oct 31

7:38 pm - 6:34 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 56m1 stop Los Angeles

6:30 am - 6:49 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

14h 19m2 stops Denver Intl Las Vegas Harry Reid Intl

$362Frontier

Sun, Oct 25 - Sat, Nov 14

10:57 pm - 5:00 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 03mnonstop

10:05 am - 12:54 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 49mnonstop

$421American Airlines

Sun, Oct 25 - Sat, Nov 14

6:19 am - 4:46 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 27m1 stop Los Angeles

9:08 pm - 11:55 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 47mnonstop

$431American Airlines

Sun, Oct 25 - Sat, Nov 14

10:17 am - 11:59 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

11h 42m1 stop San Diego

2:21 pm - 10:42 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

10h 21m1 stop San Diego

$449Alaska Airlines

Thu, Oct 22 - Mon, Oct 26

7:00 am - 6:53 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

9h 53m1 stop San Diego

7:49 pm - 10:50 amORD Chicago O'Hare Intl-SMF Sacramento Intl

17h 01m1 stop San Diego

$449Alaska Airlines

Thu, Oct 22 - Mon, Oct 26

5:30 am - 6:29 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 59m2 stops Salt Lake City Detroit Metropolitan Wayne County

12:38 pm - 8:02 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

9h 24m2 stops Minneapolis St Paul Seattle/Tacoma Intl

$451Delta

Sun, Oct 25 - Sat, Nov 14

11:55 pm - 5:50 amSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

10:40 am - 1:15 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$489Southwest

Tue, Oct 27 - Sat, Oct 31

11:55 pm - 5:50 amSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

8:40 pm - 11:15 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$489Southwest

Sat, Oct 24 - Wed, Oct 28

12:19 pm - 10:33 pmSMF Sacramento Intl-MDW Chicago Midway

8h 14m1 stop Atlanta Hartsfield-Jackson

12:27 pm - 7:37 pmMDW Chicago Midway-SMF Sacramento Intl

9h 10m2 stops Minneapolis St Paul Los Angeles

$514Delta

Sat, Oct 24 - Tue, Oct 27

Cheap direct flights

Enter your travel dates to find the best prices.

2:15 pm - 8:31 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 16mnonstop

7:55 pm - 10:40 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 45mnonstop

$358United Airlines

Fri, Nov 20 - Mon, Nov 23

1:44 pm - 8:04 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 20mnonstop

9:08 pm - 11:55 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 47mnonstop

$360American Airlines

Sat, Nov 14 - Sun, Nov 15

7:00 am - 1:14 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 14mnonstop

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

4h 46mnonstop

$360United Airlines

Tue, Dec 1 - Tue, Dec 8

1:44 pm - 8:04 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 20mnonstop

9:09 pm - 12:04 amORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 55mnonstop

$360American Airlines

Wed, Nov 18 - Sun, Nov 22

10:59 pm - 5:00 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 01mnonstop

10:05 am - 12:54 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 49mnonstop

$360American Airlines

Sun, Nov 15 - Wed, Nov 18

10:36 am - 4:50 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 14mnonstop

9:07 am - 11:57 amORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 50mnonstop

$361United Airlines

Thu, Dec 3 - Sun, Dec 6

10:36 am - 4:50 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 14mnonstop

7:50 pm - 10:46 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 56mnonstop

$361United Airlines

Wed, Dec 16 - Sat, Dec 19

6:15 am - 12:10 pmSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

10:10 am - 12:50 pmMDW Chicago Midway-SMF Sacramento Intl

4h 40mnonstop

$382Southwest

Tue, Jan 5 - Tue, Jan 12

8:20 am - 2:15 pmSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

10:25 am - 1:00 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$382Southwest

Sat, Jan 16 - Sat, Jan 23

8:20 am - 2:15 pmSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

10:25 am - 1:00 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$389Southwest

Sat, Jan 30 - Sat, Feb 6

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Frontier flights from Sacramento to Illinois

Our best Frontier deals on Sacramento to Illinois flight tickets

Frontier

Nov 6

SMF6:19 pmSacramento Intl

8h 54m

1 stop

ORD5:13 amChicago O'Hare Intl

Nov 10

ORD8:59 amChicago O'Hare Intl

28h 05m

2 stops

SMF11:04 amSacramento Intl

$355

Frontier

Nov 18

SMF6:19 pmSacramento Intl

13h 08m

2 stops

ORD9:27 amChicago O'Hare Intl

Nov 22

ORD12:05 pmChicago O'Hare Intl

21h 36m

2 stops

SMF7:41 amSacramento Intl

$356

Frontier

Oct 28

SMF11:59 amSacramento Intl

10h 22m

1 stop

ORD12:21 amChicago O'Hare Intl

Oct 31

ORD6:30 amChicago O'Hare Intl

6h 40m

1 stop

SMF11:10 amSacramento Intl

$358

Delta flights from Sacramento to Illinois

Our best Delta deals on Sacramento to Illinois flight tickets

Delta

Jan 15

SMF6:15 amSacramento Intl

10h 22m

2 stops

MDW6:37 pmChicago Midway

Jan 22

MDW12:30 pmChicago Midway

11h 22m

2 stops

SMF9:52 pmSacramento Intl

$363

Delta

Jan 15

SMF6:00 amSacramento Intl

7h 27m

1 stop

ORD3:27 pmChicago O'Hare Intl

Jan 24

ORD7:35 amChicago O'Hare Intl

8h 32m

1 stop

SMF2:07 pmSacramento Intl

$387

Delta

Feb 19

SMF6:15 amSacramento Intl

8h 35m

1 stop

MDW4:50 pmChicago Midway

Feb 22

MDW1:00 pmChicago Midway

10h 52m

2 stops

SMF9:52 pmSacramento Intl

$388

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Sat 11/21

5:11 pm-11:00 am

2 stops15h 49m

Chicago O'Hare Intl

Thu 11/26

2:17 pm-7:41 am

2 stops19h 24m

$354

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Wed 11/18

8:00 am-5:00 pm

1 stop7h 00m

Chicago O'Hare Intl

Sat 11/21

8:21 pm-11:01 pm

Nonstop4h 40m

$354

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 11/20

10:56 am-8:03 pm

1 stop7h 07m

Chicago O'Hare Intl

Fri 11/27

6:40 am-11:30 am

1 stop6h 50m

$354

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 11/6

6:19 pm-5:13 am

1 stop8h 54m

Chicago O'Hare Intl

Tue 11/10

8:59 am-11:04 am

2 stops28h 05m

$355

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 1/8

3:11 pm-1:15 pm

1 stop20h 04m

Chicago O'Hare Intl

Sun 1/10

7:40 am-2:15 pm

1 stop8h 35m

$356

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Sat 1/16

1:30 pm-9:53 pm

1 stop6h 23m

Chicago O'Hare Intl

Sat 1/23

9:30 am-4:02 pm

2 stops8h 32m

$358

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 1/15

1:00 pm-11:46 pm

1 stop8h 46m

Chicago O'Hare Intl

Sat 1/23

9:30 am-4:02 pm

2 stops8h 32m

$358

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 11/6

6:19 pm-5:13 am

1 stop8h 54m

Chicago O'Hare Intl

Mon 11/9

7:20 am-12:41 pm

1 stop7h 21m

$358

Quickest round-trip

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Fri 11/20

2:15 pm-8:31 pm

Nonstop4h 16m

Chicago O'Hare Intl

Mon 11/23

7:55 pm-10:40 pm

Nonstop4h 45m

$358

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Wed 12/23

2:33 pm-11:59 pm

1 stop7h 26m

Chicago O'Hare Intl

Thu 12/31

7:00 am-6:19 pm

1 stop13h 19m

$368

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 $494. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $600. 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 $488. 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 $480 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	$99
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 $99. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $354.

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 27.26% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 16.26%, Boeing 737 MAX 9 at 15.86%, and Boeing 737-900 at 13.54%.

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 8,662 reviews	Search Delta flights
Frontier	PriceFrom $188	Free Cancellation	Rating 5.5 2,519 reviews	Search Frontier flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 13,108 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $339	Free Cancellation	Rating 7.0 12,186 reviews	Search American Airlines flights
United Airlines	PriceFrom $351	Free Cancellation	Rating 7.3 10,404 reviews	Search United Airlines flights
Southwest	PriceFrom $380	Free Cancellation	Rating 7.9 4,210 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.