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

As of August 2026, there are 91 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Sun, with 21% of flights taking off on this day.

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 day?

As of August 2026, 13 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 44% 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 August 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.

$69 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.

8:08 am - 5:10 pm

SMF

STL

7h 02m

1 stop

6:08 pm - 10:57 am

STL

SMF

18h 49m

1 stop

$137Alaska Airlines

Sat, Sep 12 - Tue, Sep 15

8:08 am - 5:10 pm

SMF

STL

7h 02m

1 stop

6:08 pm - 10:57 am

STL

SMF

18h 49m

1 stop

$137Alaska Airlines

Tue, Sep 1 - Tue, Sep 8

11:52 am - 7:15 pm

SMF

STL

29h 23m

1 stop

8:10 pm - 6:20 pm

STL

SMF

24h 10m

2 stops

$265Frontier

Wed, Oct 14 - Mon, Oct 19

11:52 am - 7:15 pm

SMF

STL

29h 23m

1 stop

8:10 pm - 6:20 pm

STL

SMF

24h 10m

2 stops

$268Frontier

Wed, Oct 14 - Mon, Oct 19

9:20 am - 7:31 pm

SMF

MLI

8h 11m

1 stop

6:00 pm - 10:49 pm

MLI

SMF

6h 49m

1 stop

$341United Airlines

Wed, Sep 2 - Sat, Sep 12

5:45 am - 4:03 pm

SMF

MLI

8h 18m

1 stop

4:33 pm - 11:34 pm

MLI

SMF

9h 01m

1 stop

$341American Airlines

Sat, Sep 12 - Sat, Sep 19

3:13 pm - 12:08 am

SMF

MLI

6h 55m

1 stop

4:33 pm - 11:34 pm

MLI

SMF

9h 01m

1 stop

$341American Airlines

Wed, Sep 2 - Sat, Sep 12

9:20 am - 5:45 pm

SMF

MLI

6h 25m

1 stop

6:32 am - 3:01 pm

MLI

SMF

10h 29m

2 stops

$346United Airlines

Wed, Sep 2 - Sat, Sep 12

7:47 pm - 6:17 am

SMF

ORD

8h 30m

1 stop

2:18 pm - 11:40 pm

ORD

SMF

11h 22m

1 stop

$350Multiple Airlines

Fri, Sep 4 - Sun, Sep 6

7:47 pm - 6:17 am

SMF

ORD

8h 30m

1 stop

2:18 pm - 7:24 pm

ORD

SMF

7h 06m

1 stop

$350Multiple Airlines

Fri, Aug 28 - Mon, Aug 31

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Frontier flights from Sacramento to Illinois

Our best Frontier deals on Sacramento to Illinois flight tickets

Frontier

Oct 14

SMF11:52 amSacramento Intl

29h 23m

1 stop

STL7:15 pmLambert-St Louis

Oct 19

STL8:10 pmLambert-St Louis

24h 10m

2 stops

SMF6:20 pmSacramento Intl

$265

Frontier

Oct 14

SMF11:52 amSacramento Intl

29h 23m

1 stop

STL7:15 pmLambert-St Louis

Oct 19

STL8:10 pmLambert-St Louis

24h 10m

2 stops

SMF6:20 pmSacramento Intl

$268

Frontier

Sep 10

SMF7:44 pmSacramento Intl

21h 33m

2 stops

STL7:17 pmLambert-St Louis

Sep 14

STL8:10 pmLambert-St Louis

16h 48m

1 stop

SMF10:58 amSacramento Intl

$285

United Airlines flights from Sacramento to Illinois

Our best United Airlines deals on Sacramento to Illinois flight tickets

United Airlines

Sep 2

SMF9:20 amSacramento Intl

8h 11m

1 stop

MLI7:31 pmMoline Quad-City

Sep 12

MLI6:00 pmMoline Quad-City

6h 49m

1 stop

SMF10:49 pmSacramento Intl

$341

United Airlines

Sep 2

SMF9:20 amSacramento Intl

6h 25m

1 stop

MLI5:45 pmMoline Quad-City

Sep 12

MLI6:32 amMoline Quad-City

10h 29m

2 stops

SMF3:01 pmSacramento Intl

$346

United Airlines

Aug 28

SMF12:57 pmSacramento Intl

5h 53m

1 stop

PIA8:50 pmGreater Peoria

Sep 4

PIA10:41 amGreater Peoria

9h 15m

2 stops

SMF5:56 pmSacramento Intl

$364

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 9/12

8:08 am-5:10 pm

1 stop7h 02m

Lambert-St Louis

Tue 9/15

6:08 pm-10:57 am

1 stop18h 49m

$137

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/1

8:08 am-5:10 pm

1 stop7h 02m

Lambert-St Louis

Tue 9/8

6:08 pm-10:57 am

1 stop18h 49m

$137

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 10/14

11:52 am-7:15 pm

1 stop29h 23m

Lambert-St Louis

Mon 10/19

8:10 pm-6:20 pm

2 stops24h 10m

$265

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 10/14

11:52 am-7:15 pm

1 stop29h 23m

Lambert-St Louis

Mon 10/19

8:10 pm-6:20 pm

2 stops24h 10m

$268

Quickest round-trip

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Wed 9/2

9:20 am-7:31 pm

1 stop8h 11m

Moline Quad-City

Sat 9/12

6:00 pm-10:49 pm

1 stop6h 49m

$341

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Sat 9/12

5:45 am-4:03 pm

1 stop8h 18m

Moline Quad-City

Sat 9/19

4:33 pm-11:34 pm

1 stop9h 01m

$341

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Wed 9/2

3:13 pm-12:08 am

1 stop6h 55m

Moline Quad-City

Sat 9/12

4:33 pm-11:34 pm

1 stop9h 01m

$341

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Wed 9/2

9:20 am-5:45 pm

1 stop6h 25m

Moline Quad-City

Sat 9/12

6:32 am-3:01 pm

2 stops10h 29m

$346

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 9/4

7:47 pm-6:17 am

1 stop8h 30m

Chicago O'Hare Intl

Sun 9/6

2:18 pm-11:40 pm

1 stop11h 22m

$350

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 8/28

7:47 pm-6:17 am

1 stop8h 30m

Chicago O'Hare Intl

Mon 8/31

2:18 pm-7:24 pm

1 stop7h 06m

$350

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 $588. 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 $566.

What is the cheapest Sacramento Intl to Illinois flight route?

Fly from Sacramento Intl to Chicago Midway 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?

No. A direct flight is the cheapest option for a flight between Sacramento to Illinois.

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	$242
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 $242. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $420.

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 August 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 23.31% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.14%, Boeing 737-900 at 17.49%, and Boeing 737 MAX 9 at 8.85%.

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 2,736 reviews	Search Frontier flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,482 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,758 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,845 reviews	Search American Airlines flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 10,058 reviews	Search United Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 8.0 4,224 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.