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 8 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 September 2025, there are 93 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Tue, with 18% of flights taking off on this day.

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

As of September 2025, 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 76% of daily flights taking off at noon.

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Sacramento Intl 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 September 2025.

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.

$88 Cheap Flights from Sacramento to Illinois in 2025/26

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Find the cheapest flights from Sacramento to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

3:16 pm - 11:54 pmSMF-STL

6h 38m1 stop

8:42 am - 2:26 pmSTL-SMF

7h 44m1 stop

$183American Airlines

Find Deal

Wed, Oct 15 - Sat, Oct 18

5:00 am - 12:39 pmSMF-STL

5h 39m1 stop

1:35 pm - 8:38 pmSTL-SMF

9h 03m2 stops

$188United Airlines

Find Deal

Wed, Nov 12 - Fri, Nov 14

12:21 pm - 9:07 amSMF-STL

18h 46m1 stop

7:52 pm - 11:26 amSTL-SMF

17h 34m1 stop

$212Frontier

Find Deal

Thu, Oct 23 - Sun, Oct 26

9:10 am - 12:12 amSMF-ORD

13h 02m2 stops

6:00 am - 11:26 amORD-SMF

7h 26m1 stop

$218Frontier

Find Deal

Sat, Nov 8 - Sun, Nov 9

6:30 am - 9:37 amSMF-ORD

25h 07m2 stops

6:50 am - 11:26 amORD-SMF

6h 36m1 stop

$220Multiple Airlines

Find Deal

Sat, Oct 4 - Fri, Oct 24

1:05 pm - 10:00 pmSMF-STL

6h 55m1 stop

6:30 am - 11:48 amSTL-SMF

7h 18m1 stop

$248United Airlines

Find Deal

Thu, Oct 23 - Sat, Oct 25

6:30 am - 6:14 pmSMF-ORD

9h 44m2 stops

8:00 am - 9:41 pmORD-SMF

15h 41m1 stop

$269Spirit Airlines

Find Deal

Thu, Oct 2 - Fri, Oct 3

12:15 pm - 11:49 pmSMF-PIA

9h 34m2 stops

4:26 pm - 9:31 pmPIA-SMF

7h 05m1 stop

$294American Airlines

Find Deal

Thu, Nov 13 - Mon, Nov 17

6:40 am - 12:40 pmSMF-MDW

4h 00mnonstop

8:20 am - 11:05 amMDW-SMF

4h 45mnonstop

$336Southwest

Find Deal

Fri, Jan 23 - Sat, Jan 31

7:35 am - 4:00 pmSMF-MDW

6h 25m1 stop

8:25 am - 11:10 amMDW-SMF

4h 45mnonstop

$342Southwest

Find Deal

Sat, Jan 24 - Fri, Jan 30

Alaska Airlines flights from Sacramento to Illinois

Our best Alaska Airlines deals on Sacramento to Illinois flight tickets

Alaska Airlines

Oct 7

SMF3:36 pmSacramento Intl

25h 23m

1 stop

ORD6:59 pmChicago O'Hare Intl

Oct 14

ORD8:20 amChicago O'Hare Intl

12h 35m

1 stop

SMF6:55 pmSacramento Intl

$228

Find similar

Alaska Airlines

Mar 3

SMF2:05 pmSacramento Intl

7h 51m

1 stop

STL11:56 pmLambert-St Louis

Mar 4

STL7:00 amLambert-St Louis

8h 13m

1 stop

SMF1:13 pmSacramento Intl

$240

Find similar

Alaska Airlines

Oct 7

SMF3:36 pmSacramento Intl

25h 23m

1 stop

ORD6:59 pmChicago O'Hare Intl

Oct 22

ORD8:20 amChicago O'Hare Intl

13h 30m

1 stop

SMF7:50 pmSacramento Intl

$256

Find similar

Delta flights from Sacramento to Illinois

Our best Delta deals on Sacramento to Illinois flight tickets

Delta

Oct 7

SMF9:45 amSacramento Intl

12h 05m

2 stops

ORD11:50 pmChicago O'Hare Intl

Oct 21

ORD2:25 pmChicago O'Hare Intl

9h 20m

1 stop

SMF9:45 pmSacramento Intl

$254

Find similar

Delta

Oct 13

SMF10:30 pmSacramento Intl

7h 35m

1 stop

STL8:05 amLambert-St Louis

Oct 18

STL3:59 pmLambert-St Louis

8h 14m

1 stop

SMF10:13 pmSacramento Intl

$257

Find similar

Delta

Oct 28

SMF6:30 amSacramento Intl

9h 13m

2 stops

MDW5:43 pmChicago Midway

Nov 1

MDW1:11 pmChicago Midway

10h 34m

2 stops

SMF9:45 pmSacramento Intl

$260

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 10/15

3:16 pm-11:54 pm

1 stop6h 38m

Lambert-St Louis

Sat 10/18

8:42 am-2:26 pm

1 stop7h 44m

$183

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Wed 11/12

5:00 am-12:39 pm

1 stop5h 39m

Lambert-St Louis

Fri 11/14

1:35 pm-8:38 pm

2 stops9h 03m

$188

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 10/23

12:21 pm-9:07 am

1 stop18h 46m

Lambert-St Louis

Sun 10/26

7:52 pm-11:26 am

1 stop17h 34m

$212

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 11/8

9:10 am-12:12 am

2 stops13h 02m

Chicago O'Hare Intl

Sun 11/9

6:00 am-11:26 am

1 stop7h 26m

$218

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 10/4

6:30 am-9:37 am

2 stops25h 07m

Chicago O'Hare Intl

Fri 10/24

6:50 am-11:26 am

1 stop6h 36m

$220

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Thu 10/23

1:05 pm-10:00 pm

1 stop6h 55m

Lambert-St Louis

Sat 10/25

6:30 am-11:48 am

1 stop7h 18m

$248

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 10/2

6:30 am-6:14 pm

2 stops9h 44m

Chicago O'Hare Intl

Fri 10/3

8:00 am-9:41 pm

1 stop15h 41m

$269

SacramentoPeoria

SMF - PIA

SMFPIA

Sacramento Intl

Thu 11/13

12:15 pm-11:49 pm

2 stops9h 34m

Greater Peoria

Mon 11/17

4:26 pm-9:31 pm

1 stop7h 05m

$294

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Fri 1/23

6:40 am-12:40 pm

Nonstop4h 00m

Chicago Midway

Sat 1/31

8:20 am-11:05 am

Nonstop4h 45m

$336

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Sat 1/24

7:35 am-4:00 pm

1 stop6h 25m

Chicago Midway

Fri 1/30

8:25 am-11:10 am

Nonstop4h 45m

$342

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 $425, 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 September is also cheap. Prices for this month can be found on momondo for an average of $427.

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 $494. Flights from Sacramento to Illinois on a Monday will generally be more expensive and average around $578. 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 $458. Flights at noon are often more expensive with an average ticket price of $551.

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 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 $473 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 $341 on momondo.

What cabin class options are available on Sacramento Intl to Illinois flights?

There are 4 cabin classes available to choose from on Sacramento Intl 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	$167
Fastest flight time	3h 40m
Direct flights	Every day
Airports in Illinois	2 airports

The best one-way flight to Illinois from Sacramento in the past 72 hours is $167. The best round-trip flight deal from Sacramento to Illinois found on momondo in the last 72 hours is $337.

The fastest flight from Sacramento to Illinois takes 3h 40m

Direct flights go from Sacramento to Illinois every day.

There are 2 airports near Illinois: Chicago Midway (MDW), Lambert-St Louis (STL)

Search flight deals

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 September 2025.
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 36.89% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 14.71%, Airbus A320-100/200 at 12.69%, and Airbus A321neo at 9.61%.

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 $148	Free Cancellation	Rating 5.8 3,173 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $166	Free Cancellation	Rating 6.3 8,023 reviews	Search Spirit Airlines flights
American Airlines	PriceFrom $244	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $295	Free Cancellation	Rating 7.9 7,961 reviews	Search Delta flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 8,926 reviews	Search United Airlines flights
Southwest	PriceFrom $344	Free Cancellation	Rating 8.0 4,242 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.

An easier way to manage your Illinois trip

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Find better results for your trip to Illinois

Popular cities in Illinois

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Cheap flights from Sacramento to Illinois from $88

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sacramento to Illinois departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

Filter for what you want

Filter for what you want

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Trusted and free

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Find the cheapest flights from Sacramento to Illinois

Cheap round-trip flights

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Cheap last minute flights

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Alaska Airlines flights from Sacramento to Illinois

Our best Alaska Airlines deals on Sacramento to Illinois flight tickets

Delta flights from Sacramento to Illinois

Our best Delta deals on Sacramento to Illinois flight tickets

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Use the filters below to find and compare flights from Sacramento to Illinois that are best for you.

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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

What is the cheapest month to fly to Illinois?

What is the cheapest day to depart on your flight to Illinois?

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 $458. Flights at noon are often more expensive with an average ticket price of $551.

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 to Illinois?

What cabin class options are available on Sacramento Intl to Illinois flights?

There are 4 cabin classes available to choose from on Sacramento Intl 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.

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

Frontier, American Airlines, and United Airlines are the most popular carriers operating from Sacramento Intl to Illinois

What airlines fly to Illinois?

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

As of September 2025, 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 76% of daily flights taking off at noon.

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

As of September 2025, there are 93 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Tue, with 18% of flights taking off on this day.

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

Fastest flight time

Direct flights

Airports in Illinois

When did momondo last update prices for flights from Sacramento Intl Airport to Illinois?

How many operators does momondo search for flights from Sacramento Intl Airport to Illinois?

How old do you have to be to fly from Sacramento Intl Airport to Illinois?

What documentation or ID do you need to fly to Illinois?

What is the most popular plane model from Sacramento to Illinois?

Best airlines flying from Sacramento to Illinois

Compare and see reviews for airlines that fly from Sacramento to Illinois with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Sacramento to Illinois?

Can I find flights from Sacramento to Illinois with flexible booking policies on momondo?

How can momondo help me find flights from Sacramento to Illinois?

I’m not ready to book a flight from Sacramento to Illinois right now. Can momondo alert me if prices change?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo