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

Alaska Airlines, Delta, and Southwest are the most popular carriers operating from Sacramento Intl to Illinois

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 50% 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 July 2026, there are 105 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Mon, with 17% of flights taking off on this day.

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

As of July 2026, 15 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 42% of daily flights taking off at noon.

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 July 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.

$124 Cheap Flights from Sacramento to Illinois in 2026

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.

5:00 pm - 5:10 pm

SMF

STL

22h 10m

2 stops

6:29 am - 6:18 pm

STL

SMF

13h 49m

2 stops

$264Alaska Airlines

Wed, Sep 16 - Wed, Sep 23

6:52 am - 11:59 pm

SMF

STL

15h 07m

2 stops

12:46 pm - 7:03 pm

STL

SMF

8h 17m

1 stop

$272Multiple Airlines

Thu, Oct 1 - Mon, Oct 5

11:00 am - 10:11 pm

SMF

MLI

9h 11m

1 stop

4:33 pm - 11:34 pm

MLI

SMF

9h 01m

1 stop

$341American Airlines

Sat, Sep 5 - Sat, Sep 12

3:08 pm - 12:05 am

SMF

MLI

6h 57m

1 stop

4:33 pm - 11:34 pm

MLI

SMF

9h 01m

1 stop

$350American Airlines

Mon, Sep 14 - Sat, Sep 19

6:45 pm - 10:25 am

SMF

MLI

13h 40m

2 stops

11:19 am - 8:31 pm

MLI

SMF

11h 12m

2 stops

$351Delta

Sat, Sep 5 - Sat, Sep 12

6:30 pm - 5:25 am

SMF

MDW

8h 55m

1 stop

5:00 pm - 10:30 pm

MDW

SMF

7h 30m

2 stops

$352Southwest

Sat, Sep 5 - Fri, Sep 11

12:52 pm - 11:29 pm

SMF

ORD

8h 37m

1 stop

10:44 am - 8:31 pm

ORD

SMF

11h 47m

2 stops

$352Delta

Sat, Sep 5 - Fri, Sep 11

11:50 pm - 5:45 am

SMF

MDW

3h 55mnonstop

10:10 am - 12:30 pm

MDW

SMF

4h 20mnonstop

$362Southwest

Fri, Sep 11 - Tue, Sep 15

2:23 pm - 10:35 pm

SMF

MLI

6h 12m

1 stop

6:32 am - 3:01 pm

MLI

SMF

10h 29m

2 stops

$395United Airlines

Mon, Sep 14 - Sat, Sep 19

11:02 pm - 2:30 pm

SMF

PAH

13h 28m

2 stops

2:15 pm - 10:38 pm

PAH

SMF

10h 23m

1 stop

$454United Airlines

Sat, Oct 31 - Tue, Nov 3

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United Airlines flights from Sacramento to Illinois

Our best United Airlines deals on Sacramento to Illinois flight tickets

United Airlines

Sep 5

SMF10:50 amSacramento Intl

6h 40m

1 stop

ORD7:30 pmChicago O'Hare Intl

Sep 12

ORD8:11 pmChicago O'Hare Intl

4h 38m

SMF10:49 pmSacramento Intl

$371

United Airlines

Sep 5

SMF9:20 amSacramento Intl

4h 14m

ORD3:34 pmChicago O'Hare Intl

Sep 7

ORD5:00 amChicago O'Hare Intl

6h 37m

1 stop

SMF9:37 amSacramento Intl

$372

United Airlines

Sep 14

SMF2:23 pmSacramento Intl

6h 12m

1 stop

MLI10:35 pmMoline Quad-City

Sep 19

MLI6:32 amMoline Quad-City

10h 29m

2 stops

SMF3:01 pmSacramento Intl

$395

Alaska Airlines flights from Sacramento to Illinois

Our best Alaska Airlines deals on Sacramento to Illinois flight tickets

Alaska Airlines

Sep 17

SMF6:52 amSacramento Intl

15h 07m

2 stops

STL11:59 pmLambert-St Louis

Sep 21

STL7:36 pmLambert-St Louis

15h 43m

1 stop

SMF9:19 amSacramento Intl

$285

Alaska Airlines

Sep 17

SMF6:52 amSacramento Intl

15h 07m

2 stops

STL11:59 pmLambert-St Louis

Sep 21

STL6:08 pmLambert-St Louis

18h 49m

1 stop

SMF10:57 amSacramento Intl

$345

Alaska Airlines

Aug 19

SMF5:00 pmSacramento Intl

18h 22m

1 stop

ORD1:22 pmChicago O'Hare Intl

Aug 31

ORD6:01 amChicago O'Hare Intl

8h 14m

1 stop

SMF12:15 pmSacramento Intl

$349

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 9/16

5:00 pm-5:10 pm

2 stops22h 10m

Lambert-St Louis

Wed 9/23

6:29 am-6:18 pm

2 stops13h 49m

$264

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 10/1

6:52 am-11:59 pm

2 stops15h 07m

Lambert-St Louis

Mon 10/5

12:46 pm-7:03 pm

1 stop8h 17m

$272

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Sat 9/5

11:00 am-10:11 pm

1 stop9h 11m

Moline Quad-City

Sat 9/12

4:33 pm-11:34 pm

1 stop9h 01m

$341

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Mon 9/14

3:08 pm-12:05 am

1 stop6h 57m

Moline Quad-City

Sat 9/19

4:33 pm-11:34 pm

1 stop9h 01m

$350

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Sat 9/5

6:45 pm-10:25 am

2 stops13h 40m

Moline Quad-City

Sat 9/12

11:19 am-8:31 pm

2 stops11h 12m

$351

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 9/5

6:30 pm-5:25 am

1 stop8h 55m

Chicago Midway

Fri 9/11

5:00 pm-10:30 pm

2 stops7h 30m

$352

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 9/5

12:52 pm-11:29 pm

1 stop8h 37m

Chicago O'Hare Intl

Fri 9/11

10:44 am-8:31 pm

2 stops11h 47m

$352

Quickest round-trip

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Fri 9/11

11:50 pm-5:45 am

Nonstop3h 55m

Chicago Midway

Tue 9/15

10:10 am-12:30 pm

Nonstop4h 20m

$362

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Mon 9/14

2:23 pm-10:35 pm

1 stop6h 12m

Moline Quad-City

Sat 9/19

6:32 am-3:01 pm

2 stops10h 29m

$395

SacramentoPaducah

SMF - PAH

SMFPAH

Sacramento Intl

Sat 10/31

11:02 pm-2:30 pm

2 stops13h 28m

Paducah Barkley Regional

Tue 11/3

2:15 pm-10:38 pm

1 stop10h 23m

$454

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 August. Flight prices, which tend to average around $407, 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 August, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $409.

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 $479. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $589. 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 $571.

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 $466 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	$243
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 $243. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $441.

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), Lambert-St Louis (STL).

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 July 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 23.72% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.01%, Boeing 737-900 at 17.34%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 8.24%.

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
Frontier	PriceFrom $165	Free Cancellation	Rating 5.6 2,755 reviews	Search Frontier flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,483 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,718 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,842 reviews	Search American Airlines flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 10,042 reviews	Search United Airlines flights
Southwest	PriceFrom $347	Free Cancellation	Rating 8.0 4,229 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.