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, 10 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.

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

As of August 2026, there are 74 flights per week flying from Sacramento to Illinois. The most common day of the week flights depart is Thu, with 22% of flights taking off on this day.

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.

$134 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.

8:03 am - 6:38 pmSMF Sacramento Intl-STL Lambert-St Louis

8h 35m1 stop Seattle/Tacoma Intl

3:09 pm - 11:13 pmSTL Lambert-St Louis-SMF Sacramento Intl

10h 04m1 stop Seattle/Tacoma Intl

$237Alaska Airlines

Wed, Sep 30 - Thu, Oct 1

5:00 pm - 5:10 pmSMF Sacramento Intl-STL Lambert-St Louis

22h 10m2 stops San Diego Portland

7:36 pm - 9:19 amSTL Lambert-St Louis-SMF Sacramento Intl

15h 43m1 stop Seattle/Tacoma Intl

$270Alaska Airlines

Wed, Sep 30 - Thu, Oct 1

7:58 pm - 7:15 pmSMF Sacramento Intl-STL Lambert-St Louis

45h 17m2 stops Los Angeles Denver Intl

8:10 pm - 10:57 amSTL Lambert-St Louis-SMF Sacramento Intl

16h 47m1 stop Denver Intl

$275Frontier

Wed, Oct 14 - Tue, Oct 20

11:53 am - 7:17 pmSMF Sacramento Intl-STL Lambert-St Louis

5h 24m1 stop Denver Intl

12:17 pm - 5:28 pmSTL Lambert-St Louis-SMF Sacramento Intl

7h 11m1 stop Las Vegas Harry Reid Intl

$288Frontier

Wed, Sep 23 - Sat, Sep 26

8:12 am - 7:21 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

9h 09m1 stop San Diego

2:41 pm - 10:57 amORD Chicago O'Hare Intl-SMF Sacramento Intl

22h 16m1 stop Denver Intl

$349Multiple Airlines

Wed, Aug 26 - Tue, Sep 1

7:15 pm - 5:35 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 20m1 stop Las Vegas Harry Reid Intl

7:26 am - 12:41 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

7h 15m1 stop San Diego

$349Multiple Airlines

Mon, Nov 16 - Fri, Nov 20

2:23 pm - 11:13 pmSMF Sacramento Intl-PIA Greater Peoria

6h 50m1 stop Chicago O'Hare Intl

4:05 pm - 10:46 pmPIA Greater Peoria-SMF Sacramento Intl

8h 41m1 stop Chicago O'Hare Intl

$359United Airlines

Tue, Sep 22 - Tue, Sep 29

5:31 am - 4:19 pmSMF Sacramento Intl-BMI Bloomington-Normal

8h 48m1 stop Dallas/Fort Worth

6:32 am - 1:55 pmBMI Bloomington-Normal-SMF Sacramento Intl

9h 23m1 stop Dallas/Fort Worth

$359American Airlines

Sat, Aug 29 - Sat, Sep 5

3:13 pm - 11:59 pmSMF Sacramento Intl-BMI Bloomington-Normal

6h 46m1 stop Chicago O'Hare Intl

6:32 am - 1:55 pmBMI Bloomington-Normal-SMF Sacramento Intl

9h 23m1 stop Dallas/Fort Worth

$359American Airlines

Sat, Aug 29 - Sat, Sep 5

10:14 am - 8:59 pmSMF Sacramento Intl-PIA Greater Peoria

8h 45m2 stops Los Angeles Chicago O'Hare Intl

4:05 pm - 10:46 pmPIA Greater Peoria-SMF Sacramento Intl

8h 41m1 stop Chicago O'Hare Intl

$364United Airlines

Tue, Sep 22 - Tue, Sep 29

Cheap last minute flights

Enter your travel dates to find the best prices.

11:25 am - 8:52 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

7h 27m1 stop Denver Intl

9:13 pm - 7:23 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

24h 10m1 stop Los Angeles

$350Frontier

Sat, Aug 8 - Tue, Aug 11

11:25 am - 8:52 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

7h 27m1 stop Denver Intl

7:29 am - 4:11 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

10h 42m1 stop Las Vegas Harry Reid Intl

$350Frontier

Sat, Aug 8 - Tue, Aug 11

8:08 pm - 6:17 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

8h 09m1 stop Los Angeles

6:01 am - 12:15 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 14m1 stop San Diego

$352Multiple Airlines

Tue, Aug 11 - Wed, Aug 26

5:07 pm - 5:37 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 30m1 stop Las Vegas Harry Reid Intl

6:01 am - 12:15 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 14m1 stop San Diego

$358Multiple Airlines

Wed, Aug 12 - Wed, Aug 26

1:30 pm - 1:21 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

21h 51m1 stop San Diego

7:59 pm - 9:36 amORD Chicago O'Hare Intl-SMF Sacramento Intl

15h 37m1 stop San Diego

$429Alaska Airlines

Sat, Aug 8 - Tue, Aug 11

10:13 am - 6:57 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

6h 44m1 stop San Diego

6:00 am - 12:06 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 06m1 stop Seattle/Tacoma Intl

$452Alaska Airlines

Wed, Aug 12 - Sun, Aug 23

3:13 pm - 9:40 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 27mnonstop

11:56 am - 2:23 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 27mnonstop

$489American Airlines

Wed, Aug 12 - Tue, Aug 25

3:13 pm - 9:40 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 27mnonstop

11:56 am - 2:23 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 27mnonstop

$489American Airlines

Tue, Aug 11 - Tue, Aug 25

8:40 pm - 8:30 amSMF Sacramento Intl-ORD Chicago O'Hare Intl

9h 50m2 stops Los Angeles Minneapolis St Paul

7:00 am - 1:14 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

8h 14m1 stop Seattle/Tacoma Intl

$491Delta

Wed, Aug 12 - Sat, Aug 29

9:21 am - 9:47 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

10h 26m2 stops Los Angeles Minneapolis St Paul

7:00 am - 10:40 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

17h 40m1 stop Seattle/Tacoma Intl

$491Delta

Tue, Aug 11 - Sat, Aug 29

Cheap direct flights

Enter your travel dates to find the best prices.

11:50 pm - 5:45 amSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

9:00 pm - 11:30 pmMDW Chicago Midway-SMF Sacramento Intl

4h 30mnonstop

$403Southwest

Sat, Sep 5 - Fri, Sep 11

3:13 pm - 9:40 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 27mnonstop

11:47 am - 2:18 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 31mnonstop

$404American Airlines

Sat, Sep 5 - Fri, Sep 11

3:13 pm - 9:40 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 27mnonstop

11:47 am - 2:18 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 31mnonstop

$406American Airlines

Sat, Sep 5 - Fri, Sep 11

2:13 pm - 8:29 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 16mnonstop

7:55 pm - 10:40 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 45mnonstop

$407United Airlines

Tue, Oct 27 - Fri, Oct 30

7:00 am - 1:14 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 14mnonstop

8:08 pm - 10:46 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 38mnonstop

$407United Airlines

Sat, Sep 5 - Tue, Sep 8

11:55 pm - 5:50 amSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

9:50 am - 12:20 pmMDW Chicago Midway-SMF Sacramento Intl

4h 30mnonstop

$407Southwest

Tue, Oct 27 - Fri, Oct 30

2:23 pm - 8:38 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 15mnonstop

3:40 pm - 6:18 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 38mnonstop

$411United Airlines

Wed, Sep 9 - Sat, Sep 12

11:50 pm - 5:45 amSMF Sacramento Intl-MDW Chicago Midway

3h 55mnonstop

10:05 am - 12:25 pmMDW Chicago Midway-SMF Sacramento Intl

4h 20mnonstop

$411Southwest

Wed, Sep 9 - Sat, Sep 12

3:08 pm - 9:35 pmSMF Sacramento Intl-ORD Chicago O'Hare Intl

4h 27mnonstop

9:14 pm - 11:59 pmORD Chicago O'Hare Intl-SMF Sacramento Intl

4h 45mnonstop

$411American Airlines

Tue, Sep 22 - Tue, Oct 6

6:15 am - 12:05 pmSMF Sacramento Intl-MDW Chicago Midway

3h 50mnonstop

10:05 am - 12:40 pmMDW Chicago Midway-SMF Sacramento Intl

4h 35mnonstop

$411Southwest

Tue, Oct 27 - Tue, Nov 3

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Frontier flights from Sacramento to Illinois

Our best Frontier deals on Sacramento to Illinois flight tickets

Frontier

Oct 14

SMF7:58 pmSacramento Intl

45h 17m

2 stops

STL7:15 pmLambert-St Louis

Oct 20

STL8:10 pmLambert-St Louis

16h 47m

1 stop

SMF10:57 amSacramento Intl

$275

Frontier

Sep 16

SMF11:53 amSacramento Intl

5h 24m

1 stop

STL7:17 pmLambert-St Louis

Sep 21

STL8:10 pmLambert-St Louis

16h 48m

1 stop

SMF10:58 amSacramento Intl

$288

Frontier

Sep 10

SMF6:23 pmSacramento Intl

16h 47m

2 stops

STL1:10 pmLambert-St Louis

Sep 13

STL1:02 pmLambert-St Louis

23h 38m

1 stop

SMF10:40 amSacramento Intl

$290

Alaska Airlines flights from Sacramento to Illinois

Our best Alaska Airlines deals on Sacramento to Illinois flight tickets

Alaska Airlines

Sep 30

SMF8:03 amSacramento Intl

8h 35m

1 stop

STL6:38 pmLambert-St Louis

Oct 1

STL3:09 pmLambert-St Louis

10h 04m

1 stop

SMF11:13 pmSacramento Intl

$237

Alaska Airlines

Sep 30

SMF5:00 pmSacramento Intl

22h 10m

2 stops

STL5:10 pmLambert-St Louis

Oct 1

STL7:36 pmLambert-St Louis

15h 43m

1 stop

SMF9:19 amSacramento Intl

$270

Alaska Airlines

Sep 23

SMF5:00 pmSacramento Intl

22h 10m

2 stops

STL5:10 pmLambert-St Louis

Sep 26

STL6:29 amLambert-St Louis

11h 13m

2 stops

SMF3:42 pmSacramento Intl

$303

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SacramentoSt. Louis

SMF Sacramento Intl - STL Lambert-St Louis

SMFSTL

Sacramento Intl

Wed 9/30

8:03 am-6:38 pm

1 stop8h 35m

Lambert-St Louis

Thu 10/1

3:09 pm-11:13 pm

1 stop10h 04m

$237

SacramentoSt. Louis

SMF Sacramento Intl - STL Lambert-St Louis

SMFSTL

Sacramento Intl

Wed 9/30

5:00 pm-5:10 pm

2 stops22h 10m

Lambert-St Louis

Thu 10/1

7:36 pm-9:19 am

1 stop15h 43m

$270

SacramentoSt. Louis

SMF Sacramento Intl - STL Lambert-St Louis

SMFSTL

Sacramento Intl

Wed 10/14

7:58 pm-7:15 pm

2 stops45h 17m

Lambert-St Louis

Tue 10/20

8:10 pm-10:57 am

1 stop16h 47m

$275

Quickest round-trip

SacramentoSt. Louis

SMF Sacramento Intl - STL Lambert-St Louis

SMFSTL

Sacramento Intl

Wed 9/23

11:53 am-7:17 pm

1 stop5h 24m

Lambert-St Louis

Sat 9/26

12:17 pm-5:28 pm

1 stop7h 11m

$288

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Wed 8/26

8:12 am-7:21 pm

1 stop9h 09m

Chicago O'Hare Intl

Tue 9/1

2:41 pm-10:57 am

1 stop22h 16m

$349

SacramentoChicago

SMF Sacramento Intl - ORD Chicago O'Hare Intl

SMFORD

Sacramento Intl

Mon 11/16

7:15 pm-5:35 am

1 stop8h 20m

Chicago O'Hare Intl

Fri 11/20

7:26 am-12:41 pm

1 stop7h 15m

$349

SacramentoPeoria

SMF Sacramento Intl - PIA Greater Peoria

SMFPIA

Sacramento Intl

Tue 9/22

2:23 pm-11:13 pm

1 stop6h 50m

Greater Peoria

Tue 9/29

4:05 pm-10:46 pm

1 stop8h 41m

$359

SacramentoBloomington

SMF Sacramento Intl - BMI Bloomington-Normal

SMFBMI

Sacramento Intl

Sat 8/29

5:31 am-4:19 pm

1 stop8h 48m

Bloomington-Normal

Sat 9/5

6:32 am-1:55 pm

1 stop9h 23m

$359

SacramentoBloomington

SMF Sacramento Intl - BMI Bloomington-Normal

SMFBMI

Sacramento Intl

Sat 8/29

3:13 pm-11:59 pm

1 stop6h 46m

Bloomington-Normal

Sat 9/5

6:32 am-1:55 pm

1 stop9h 23m

$359

SacramentoPeoria

SMF Sacramento Intl - PIA Greater Peoria

SMFPIA

Sacramento Intl

Tue 9/22

10:14 am-8:59 pm

2 stops8h 45m

Greater Peoria

Tue 9/29

4:05 pm-10:46 pm

1 stop8h 41m

$364

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 January. Flight prices, which tend to average around $409, 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 January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $417.

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 30m
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 30m

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 22.83% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 21.49%, Boeing 737-900 at 17.38%, and Boeing 737 MAX 9 at 9.53%.

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 2,722 reviews	Search Frontier flights
Delta	PriceFrom $179	Free Cancellation	Rating 7.8 8,498 reviews	Search Delta flights
Alaska Airlines	PriceFrom $190	Free Cancellation	Rating 7.9 12,773 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.1 11,874 reviews	Search American Airlines flights
United Airlines	PriceFrom $307	Free Cancellation	Rating 7.4 10,080 reviews	Search United Airlines flights
Southwest	PriceFrom $335	Free Cancellation	Rating 8.0 4,216 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.