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

Southwest, United Airlines, and Delta 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 April 2026, there are 80 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Mon, with 21% of flights taking off on this day.

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 48% 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.

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

As of April 2026, 11 flights take off from Sacramento and land in Illinois each day. The most common flight departure time for this route is 7:00AM, with 72% 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 April 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

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

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.

5:14 pm - 6:06 pm

SMF

STL

22h 52m

1 stop

9:18 pm - 4:19 pm

STL

SMF

21h 01m

1 stop

$191Frontier

Tue, May 12 - Fri, May 15

5:19 pm - 11:41 am

SMF

STL

16h 22m

1 stop

6:51 pm - 4:19 pm

STL

SMF

23h 28m

1 stop

$211Frontier

Sat, May 9 - Wed, May 13

12:15 pm - 9:38 pm

SMF

STL

7h 23m

1 stop

6:21 am - 12:24 pm

STL

SMF

8h 03m

1 stop

$243Delta

Tue, May 19 - Thu, May 28

1:37 pm - 11:21 pm

SMF

STL

7h 44m

1 stop

6:21 am - 12:24 pm

STL

SMF

8h 03m

1 stop

$249Delta

Sat, May 23 - Thu, May 28

1:03 pm - 10:59 pm

SMF

STL

7h 56m

2 stops

5:51 am - 10:48 am

STL

SMF

6h 57m

1 stop

$254American Airlines

Tue, May 12 - Fri, May 15

11:10 pm - 5:33 am

SMF

ORD

4h 23mnonstop

9:12 pm - 11:39 pm

ORD

SMF

4h 27mnonstop

$319American Airlines

Thu, Jun 4 - Mon, Jun 8

8:25 pm - 5:50 am

SMF

MDW

7h 25m

1 stop

6:15 am - 11:15 am

MDW

SMF

7h 00m

1 stop

$319Southwest

Sat, May 23 - Sat, May 30

11:50 pm - 5:45 am

SMF

MDW

3h 55mnonstop

6:10 pm - 8:35 pm

MDW

SMF

4h 25mnonstop

$320Southwest

Thu, Sep 17 - Mon, Sep 21

11:07 pm - 5:20 am

SMF

ORD

4h 13mnonstop

4:12 pm - 6:49 pm

ORD

SMF

4h 37mnonstop

$327United Airlines

Tue, Aug 18 - Tue, Aug 25

11:59 pm - 10:04 am

SMF

PIA

8h 05m

1 stop

5:33 pm - 10:38 pm

PIA

SMF

7h 05m

1 stop

$382United Airlines

Sat, May 16 - Sat, May 23

Alaska Airlines flights from Sacramento to Illinois

Our best Alaska Airlines deals on Sacramento to Illinois flight tickets

Alaska Airlines

May 27

SMF3:25 pmSacramento Intl

19h 49m

1 stop

ORD1:14 pmChicago O'Hare Intl

Jun 2

ORD7:40 amChicago O'Hare Intl

13h 52m

2 stops

SMF7:32 pmSacramento Intl

$316

Alaska Airlines

Jul 7

SMF8:36 amSacramento Intl

8h 21m

1 stop

ORD6:57 pmChicago O'Hare Intl

Jul 11

ORD5:59 pmChicago O'Hare Intl

7h 33m

1 stop

SMF11:32 pmSacramento Intl

$321

Alaska Airlines

May 23

SMF3:25 pmSacramento Intl

6h 30m

1 stop

ORD11:55 pmChicago O'Hare Intl

May 30

ORD7:40 amChicago O'Hare Intl

8h 18m

1 stop

SMF1:58 pmSacramento Intl

$322

American Airlines flights from Sacramento to Illinois

Our best American Airlines deals on Sacramento to Illinois flight tickets

American Airlines

May 12

SMF1:03 pmSacramento Intl

7h 56m

2 stops

STL10:59 pmLambert-St Louis

May 15

STL5:51 amLambert-St Louis

6h 57m

1 stop

SMF10:48 amSacramento Intl

$254

American Airlines

May 12

SMF1:03 pmSacramento Intl

7h 56m

2 stops

STL10:59 pmLambert-St Louis

May 20

STL5:51 amLambert-St Louis

6h 57m

1 stop

SMF10:48 amSacramento Intl

$266

American Airlines

May 12

SMF8:17 amSacramento Intl

9h 13m

1 stop

STL7:30 pmLambert-St Louis

May 16

STL5:51 amLambert-St Louis

6h 57m

1 stop

SMF10:48 amSacramento Intl

$317

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 5/12

5:14 pm-6:06 pm

1 stop22h 52m

Lambert-St Louis

Fri 5/15

9:18 pm-4:19 pm

1 stop21h 01m

$191

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 5/9

5:19 pm-11:41 am

1 stop16h 22m

Lambert-St Louis

Wed 5/13

6:51 pm-4:19 pm

1 stop23h 28m

$211

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 5/19

12:15 pm-9:38 pm

1 stop7h 23m

Lambert-St Louis

Thu 5/28

6:21 am-12:24 pm

1 stop8h 03m

$243

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Sat 5/23

1:37 pm-11:21 pm

1 stop7h 44m

Lambert-St Louis

Thu 5/28

6:21 am-12:24 pm

1 stop8h 03m

$249

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Tue 5/12

1:03 pm-10:59 pm

2 stops7h 56m

Lambert-St Louis

Fri 5/15

5:51 am-10:48 am

1 stop6h 57m

$254

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 6/4

11:10 pm-5:33 am

Nonstop4h 23m

Chicago O'Hare Intl

Mon 6/8

9:12 pm-11:39 pm

Nonstop4h 27m

$319

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 5/23

8:25 pm-5:50 am

1 stop7h 25m

Chicago Midway

Sat 5/30

6:15 am-11:15 am

1 stop7h 00m

$319

Quickest round-trip

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Thu 9/17

11:50 pm-5:45 am

Nonstop3h 55m

Chicago Midway

Mon 9/21

6:10 pm-8:35 pm

Nonstop4h 25m

$320

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 8/18

11:07 pm-5:20 am

Nonstop4h 13m

Chicago O'Hare Intl

Tue 8/25

4:12 pm-6:49 pm

Nonstop4h 37m

$327

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Sat 5/16

11:59 pm-10:04 am

1 stop8h 05m

Greater Peoria

Sat 5/23

5:33 pm-10:38 pm

1 stop7h 05m

$382

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 $468. Flights from Sacramento to Illinois on a Sunday will generally be more expensive and average around $547. 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 $475. Flights at noon are often more expensive with an average ticket price of $527.

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 $461 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 $375 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 48% 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	$227
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 $227. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $436.

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 April 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 MAX 8, representing 22.61% of all bookings. The subsequent popular models are Boeing 737-800 at 20.68%, Boeing 737-900 at 16.52%, and Boeing 737-800 Passenger/BBJ2 (winglets) at 10.80%.

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 2,974 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $171	Free Cancellation	Rating 6.3 8,632 reviews	Search Spirit Airlines flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,299 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $190	Free Cancellation	Rating 7.1 11,668 reviews	Search American Airlines flights
Delta	PriceFrom $194	Free Cancellation	Rating 7.9 8,462 reviews	Search Delta flights
United Airlines	PriceFrom $273	Free Cancellation	Rating 7.4 9,668 reviews	Search United Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 8.0 4,321 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.