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 July 2026, there are 100 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Fri, with 18% of flights taking off on this day.

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

United Airlines, Delta, and Alaska Airlines 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 July 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 46% 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.

$109 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.

5:07 pm - 6:15 pm

SMF

STL

23h 08m

1 stop

8:08 pm - 8:36 am

STL

SMF

14h 28m

1 stop

$300Frontier

Wed, Aug 5 - Wed, Aug 12

8:08 pm - 7:23 pm

SMF

STL

21h 15m

2 stops

7:10 pm - 6:49 pm

STL

SMF

25h 39m

1 stop

$304Frontier

Wed, Aug 12 - Sun, Aug 16

2:23 pm - 10:59 pm

SMF

STL

6h 36m

1 stop

1:36 pm - 8:21 pm

STL

SMF

8h 45m

2 stops

$334United Airlines

Wed, Aug 19 - Sat, Aug 22

12:15 pm - 5:50 pm

SMF

STL

3h 35mnonstop

8:35 am - 10:35 am

STL

SMF

4h 00mnonstop

$337Southwest

Tue, Sep 15 - Wed, Sep 30

3:13 pm - 12:08 am

SMF

MLI

6h 55m

1 stop

11:32 am - 6:08 pm

MLI

SMF

8h 36m

1 stop

$340American Airlines

Wed, Aug 5 - Tue, Sep 1

3:13 pm - 11:59 pm

SMF

BMI

6h 46m

1 stop

4:49 pm - 11:10 pm

BMI

SMF

8h 21m

1 stop

$349American Airlines

Thu, Aug 6 - Thu, Aug 13

11:50 pm - 5:45 am

SMF

MDW

3h 55mnonstop

9:00 pm - 11:25 pm

MDW

SMF

4h 25mnonstop

$364Southwest

Thu, Sep 10 - Mon, Sep 14

10:14 am - 9:00 pm

SMF

MLI

8h 46m

2 stops

5:09 pm - 10:46 pm

MLI

SMF

7h 37m

1 stop

$365United Airlines

Tue, Sep 15 - Mon, Sep 21

6:56 am - 4:15 pm

SMF

MDW

7h 19m

1 stop

1:51 pm - 8:35 pm

MDW

SMF

8h 44m

1 stop

$365Delta

Wed, Aug 12 - Tue, Aug 18

7:41 pm - 9:07 am

SMF

MDW

11h 26m

2 stops

2:00 pm - 8:39 pm

MDW

SMF

8h 39m

1 stop

$370Delta

Thu, Sep 24 - Mon, Sep 28

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United Airlines flights from Sacramento to Illinois

Our best United Airlines deals on Sacramento to Illinois flight tickets

United Airlines

Aug 19

SMF2:23 pmSacramento Intl

6h 36m

1 stop

STL10:59 pmLambert-St Louis

Aug 22

STL1:36 pmLambert-St Louis

8h 45m

2 stops

SMF8:21 pmSacramento Intl

$334

United Airlines

Sep 15

SMF10:14 amSacramento Intl

8h 46m

2 stops

MLI9:00 pmMoline Quad-City

Sep 21

MLI5:09 pmMoline Quad-City

7h 37m

1 stop

SMF10:46 pmSacramento Intl

$365

United Airlines

Aug 7

SMF4:19 pmSacramento Intl

6h 25m

1 stop

ORD12:44 amChicago O'Hare Intl

Aug 10

ORD7:53 pmChicago O'Hare Intl

4h 44m

SMF10:37 pmSacramento Intl

$366

American Airlines flights from Sacramento to Illinois

Our best American Airlines deals on Sacramento to Illinois flight tickets

American Airlines

Aug 5

SMF3:13 pmSacramento Intl

6h 55m

1 stop

MLI12:08 amMoline Quad-City

Sep 1

MLI11:32 amMoline Quad-City

8h 36m

1 stop

SMF6:08 pmSacramento Intl

$340

American Airlines

Aug 6

SMF3:13 pmSacramento Intl

6h 46m

1 stop

BMI11:59 pmBloomington-Normal

Aug 13

BMI4:49 pmBloomington-Normal

8h 21m

1 stop

SMF11:10 pmSacramento Intl

$349

American Airlines

Aug 13

SMF2:59 pmSacramento Intl

6h 43m

1 stop

STL11:42 pmLambert-St Louis

Aug 18

STL6:36 amLambert-St Louis

9h 19m

1 stop

SMF1:55 pmSacramento Intl

$351

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 8/5

5:07 pm-6:15 pm

1 stop23h 08m

Lambert-St Louis

Wed 8/12

8:08 pm-8:36 am

1 stop14h 28m

$300

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 8/12

8:08 pm-7:23 pm

2 stops21h 15m

Lambert-St Louis

Sun 8/16

7:10 pm-6:49 pm

1 stop25h 39m

$304

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 8/19

2:23 pm-10:59 pm

1 stop6h 36m

Lambert-St Louis

Sat 8/22

1:36 pm-8:21 pm

2 stops8h 45m

$334

Quickest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 9/15

12:15 pm-5:50 pm

Nonstop3h 35m

Lambert-St Louis

Wed 9/30

8:35 am-10:35 am

Nonstop4h 00m

$337

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Wed 8/5

3:13 pm-12:08 am

1 stop6h 55m

Moline Quad-City

Tue 9/1

11:32 am-6:08 pm

1 stop8h 36m

$340

SacramentoBloomington

SMF - BMI

SMFBMI

Sacramento Intl

Thu 8/6

3:13 pm-11:59 pm

1 stop6h 46m

Bloomington-Normal

Thu 8/13

4:49 pm-11:10 pm

1 stop8h 21m

$349

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Thu 9/10

11:50 pm-5:45 am

Nonstop3h 55m

Chicago Midway

Mon 9/14

9:00 pm-11:25 pm

Nonstop4h 25m

$364

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Tue 9/15

10:14 am-9:00 pm

2 stops8h 46m

Moline Quad-City

Mon 9/21

5:09 pm-10:46 pm

1 stop7h 37m

$365

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Wed 8/12

6:56 am-4:15 pm

1 stop7h 19m

Chicago Midway

Tue 8/18

1:51 pm-8:35 pm

1 stop8h 44m

$365

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Thu 9/24

7:41 pm-9:07 am

2 stops11h 26m

Chicago Midway

Mon 9/28

2:00 pm-8:39 pm

1 stop8h 39m

$370

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 $481. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $567. 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 $484. Flights at noon are often more expensive with an average ticket price of $569.

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 $465 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 8% 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	$240
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 $240. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $449.

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 24.52% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 22.45%, Boeing 737-900 at 18.13%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 8.38%.

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 2,824 reviews	Search Frontier flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,458 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,655 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $205	Free Cancellation	Rating 7.1 11,804 reviews	Search American Airlines flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 9,980 reviews	Search United Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 7.9 4,251 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.