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 9 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

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

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

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

As of May 2026, there are 98 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Thu, with 17% of flights taking off on this day.

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

As of May 2026, 14 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 73% 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 7 operators available for flights from Sacramento Intl Airport to Illinois as of May 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.

$120 Cheap Flights from Sacramento to Illinois in 2026

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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.

11:25 am - 6:53 pm

SMF

STL

5h 28m

1 stop

7:10 pm - 3:32 pm

STL

SMF

22h 22m

1 stop

$219Frontier

Sat, Jul 4 - Fri, Jul 10

11:25 am - 6:53 pm

SMF

STL

5h 28m

1 stop

7:10 pm - 3:32 pm

STL

SMF

22h 22m

1 stop

$228Frontier

Sat, Jul 4 - Fri, Jul 10

10:40 pm - 10:26 am

SMF

MLI

9h 46m

1 stop

5:00 pm - 10:40 pm

MLI

SMF

7h 40m

1 stop

$340Delta

Tue, Sep 15 - Mon, Sep 21

5:15 pm - 10:26 am

SMF

MLI

15h 11m

2 stops

5:00 pm - 10:40 pm

MLI

SMF

7h 40m

1 stop

$345Delta

Tue, Sep 15 - Mon, Sep 21

11:10 pm - 9:17 am

SMF

PIA

8h 07m

1 stop

6:58 pm - 11:34 pm

PIA

SMF

6h 36m

1 stop

$349American Airlines

Thu, Jul 16 - Thu, Jul 23

3:05 pm - 12:41 am

SMF

MLI

7h 36m

1 stop

6:50 pm - 11:34 pm

MLI

SMF

6h 44m

1 stop

$349American Airlines

Fri, Jul 17 - Thu, Jul 23

11:50 pm - 5:45 am

SMF

MDW

3h 55mnonstop

8:50 pm - 11:10 pm

MDW

SMF

4h 20mnonstop

$381Southwest

Wed, Aug 5 - Wed, Aug 26

11:50 pm - 5:45 am

SMF

MDW

3h 55mnonstop

5:05 pm - 10:10 pm

MDW

SMF

7h 05m

1 stop

$387Southwest

Sat, Jul 25 - Tue, Jul 28

2:23 pm - 10:59 pm

SMF

PIA

6h 36m

1 stop

6:15 am - 12:06 pm

PIA

SMF

7h 51m

1 stop

$419United Airlines

Thu, Sep 17 - Sun, Sep 27

2:24 pm - 11:20 pm

SMF

PIA

6h 56m

1 stop

5:43 pm - 10:37 pm

PIA

SMF

6h 54m

1 stop

$421United Airlines

Thu, Jul 9 - Thu, Jul 16

United Airlines flights from Sacramento to Illinois

Our best United Airlines deals on Sacramento to Illinois flight tickets

United Airlines

Jul 2

SMF4:19 pmSacramento Intl

5h 38m

1 stop

STL11:57 pmLambert-St Louis

Jul 9

STL7:23 pmLambert-St Louis

6h 36m

1 stop

SMF11:59 pmSacramento Intl

$347

United Airlines

Jul 7

SMF11:43 pmSacramento Intl

4h 09m

ORD5:52 amChicago O'Hare Intl

Jul 11

ORD7:53 pmChicago O'Hare Intl

4h 44m

SMF10:37 pmSacramento Intl

$381

United Airlines

Oct 17

SMF10:50 amSacramento Intl

6h 39m

1 stop

ORD7:29 pmChicago O'Hare Intl

Oct 21

ORD8:08 pmChicago O'Hare Intl

4h 38m

SMF10:46 pmSacramento Intl

$387

American Airlines flights from Sacramento to Illinois

Our best American Airlines deals on Sacramento to Illinois flight tickets

American Airlines

Jun 25

SMF3:17 pmSacramento Intl

6h 59m

1 stop

STL12:16 amLambert-St Louis

Jun 29

STL7:20 pmLambert-St Louis

6h 51m

1 stop

SMF12:11 amSacramento Intl

$317

American Airlines

Jul 17

SMF3:05 pmSacramento Intl

7h 36m

1 stop

MLI12:41 amMoline Quad-City

Jul 23

MLI6:50 pmMoline Quad-City

6h 44m

1 stop

SMF11:34 pmSacramento Intl

$349

American Airlines

Jun 8

SMF4:13 pmSacramento Intl

5h 44m

1 stop

STL11:57 pmLambert-St Louis

Jun 9

STL5:29 amLambert-St Louis

8h 37m

2 stops

SMF12:06 pmSacramento Intl

$353

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 7/4

11:25 am-6:53 pm

1 stop5h 28m

Lambert-St Louis

Fri 7/10

7:10 pm-3:32 pm

1 stop22h 22m

$219

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 7/4

11:25 am-6:53 pm

1 stop5h 28m

Lambert-St Louis

Fri 7/10

7:10 pm-3:32 pm

1 stop22h 22m

$228

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Tue 9/15

10:40 pm-10:26 am

1 stop9h 46m

Moline Quad-City

Mon 9/21

5:00 pm-10:40 pm

1 stop7h 40m

$340

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Tue 9/15

5:15 pm-10:26 am

2 stops15h 11m

Moline Quad-City

Mon 9/21

5:00 pm-10:40 pm

1 stop7h 40m

$345

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Thu 7/16

11:10 pm-9:17 am

1 stop8h 07m

Greater Peoria

Thu 7/23

6:58 pm-11:34 pm

1 stop6h 36m

$349

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Fri 7/17

3:05 pm-12:41 am

1 stop7h 36m

Moline Quad-City

Thu 7/23

6:50 pm-11:34 pm

1 stop6h 44m

$349

Quickest round-trip

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Wed 8/5

11:50 pm-5:45 am

Nonstop3h 55m

Chicago Midway

Wed 8/26

8:50 pm-11:10 pm

Nonstop4h 20m

$381

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 7/25

11:50 pm-5:45 am

Nonstop3h 55m

Chicago Midway

Tue 7/28

5:05 pm-10:10 pm

1 stop7h 05m

$387

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Thu 9/17

2:23 pm-10:59 pm

1 stop6h 36m

Greater Peoria

Sun 9/27

6:15 am-12:06 pm

1 stop7h 51m

$419

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Thu 7/9

2:24 pm-11:20 pm

1 stop6h 56m

Greater Peoria

Thu 7/16

5:43 pm-10:37 pm

1 stop6h 54m

$421

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 September. Flight prices, which tend to average around $84, 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 September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $118.

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 $475. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $553. 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 afternoon. Flights from Sacramento to Illinois during this time can be as low as $477. Flights at noon are often more expensive with an average ticket price of $545.

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 $462 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 $252 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 12% 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	$216
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 $216. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $429.

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 7 operators available for flights from Sacramento Intl Airport to Illinois as of May 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 23.76% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 21.20%, Boeing 737-900 at 17.83%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 10.32%.

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 $158	Free Cancellation	Rating 5.6 2,938 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $171	Free Cancellation	Rating 6.2	Search Spirit Airlines flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.9 8,437 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,407 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $205	Free Cancellation	Rating 7.1 11,631 reviews	Search American Airlines flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 9,749 reviews	Search United Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 7.9 4,273 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.