How long is the flight from Sacramento to Illinois?

Departing from Sacramento to Illinois will take you 10h 38m. Airlines will cover a distance of 1644 mi. This flight may include one or multiple stops.

What are the cheapest airlines to fly from Sacramento to Illinois one-way?

To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $117. Delta flights start at $131 while deals on American Airlines start at $250 one-way.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

What are the most popular routes from Sacramento to Illinois?

The most popular flight routes from Sacramento to Illinois are Sacramento Intl - Chicago O'Hare Intl, Sacramento Intl - Chicago Midway and Sacramento Intl - Lambert-St Louis.

What are the cheapest flights from Sacramento to Illinois?

Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $914, our data indicates the cheapest price to be $155. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $152.

What are the most reliable airlines from Sacramento to Illinois?

Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Sacramento to Illinois on time: Lufthansa (87%), Air Canada (83%), American Airlines (71%).

What are the most popular airlines that fly from Sacramento to Illinois?

Before booking your flight from Sacramento to Illinois check out the most popular airlines for this route: United Airlines, American Airlines or Southwest.

What airport do you fly from for flights from Sacramento to Illinois?

Most people fly from Sacramento Intl (SMF) if they book a flight from Sacramento to Illinois. Sacramento Intl is conveniently located just 9.4 mi from Sacramento’s city center.

Can I find deals for flights from Sacramento to Illinois that include hotel bookings?

Yes. In addition to deals on Sacramento to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sacramento to Illinois?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sacramento to Illinois.

Can I find deals for business class flights from Sacramento to Illinois?

Yes. Cheapflights offers flight deals from Sacramento to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$75+ Flights from Sacramento to Illinois

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Cheap flight deals from Sacramento to Illinois

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$205 (Mytrip)
One-way from	$75 (Kiwi.com)
Popular in	December
Cheapest in	February
Average price	$389

Provider with most accurate pricing for San Francisco-Chicago (CHI) flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Francisco-Chicago (CHI) flights.

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From Sacramento Intl to Illinois

Search Deals

One-way flight from Sacramento Intl to Illinois

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($36 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in October 2025

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Find flight deals from Sacramento to Illinois

Cheapest flights from Sacramento to Illinois
Explore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

Mon 11/1711:17 amSMF - STL

1 stop19h 50mFrontier

Thu 11/207:57 pmSTL - SMF

1 stop19h 18mFrontier

Deal found 10/28

$205

Mon 11/1711:17 amSMF - STL

1 stop19h 50mFrontier

Wed 11/197:45 pmSTL - SMF

2 stops19h 43mFrontier

Deal found 10/28

$221

Thu 11/64:11 pmSMF - ORD

1 stop27h 37mFrontier

Thu 11/136:00 amORD - SMF

1 stop7h 26mFrontier

Deal found 10/27

$222

Thu 11/136:16 pmSMF - ORD

2 stops25h 32mMultiple Airlines

Sun 11/169:22 pmORD - SMF

1 stop15h 05mMultiple Airlines

Deal found 10/27

$228

Mon 11/1011:17 amSMF - ORD

2 stops21h 57mFrontier

Thu 11/136:30 amORD - SMF

1 stop10h 56mFrontier

Deal found 10/27

$232

Fri 11/1411:17 amSMF - ORD

1 stop10h 58mFrontier

Sun 11/166:00 amORD - SMF

1 stop7h 21mFrontier

Deal found 10/29

$234

Sun 11/163:18 pmSMF - ORD

2 stops38h 10mMultiple Airlines

Wed 11/199:22 pmORD - SMF

1 stop20h 00mMultiple Airlines

Deal found 10/27

$239

Thu 11/202:13 pmSMF - ORD

1 stop14h 12mMultiple Airlines

Sun 11/238:18 pmORD - SMF

1 stop18h 25mMultiple Airlines

Deal found 10/29

$240

Sun 11/95:56 pmSMF - ORD

2 stops18h 08mMultiple Airlines

Wed 11/129:22 pmORD - SMF

1 stop20h 04mMultiple Airlines

Deal found 10/26

$241

Thu 12/411:20 amSMF - ORD

1 stop10h 53mFrontier

Thu 12/119:53 pmORD - SMF

2 stops22h 53mFrontier

Deal found 10/27

$247

Mon 11/1011:17 amSMF - ORD

1 stop10h 58mMultiple Airlines

Tue 11/188:59 pmORD - SMF

1 stop14h 55mMultiple Airlines

Deal found 10/28

$249

Fri 11/1412:58 pmSMF - ORD

2 stops32h 31mMultiple Airlines

Sun 11/169:22 pmORD - SMF

1 stop15h 05mMultiple Airlines

Deal found 10/29

$250

Best flights from Sacramento to Illinois
Discover carefully curated flight deals from Sacramento to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 29, 2025.

Tue 1/61:48 pmSMF - ORD

1 stop22h 41mAlaska Airlines

Fri 1/239:00 amORD - SMF

1 stop29h 22mAlaska Airlines

Deal found 10/28

$252

Fri 1/3012:29 pmSMF - STL

1 stop19h 33mFrontier

Wed 2/47:43 pmSTL - SMF

2 stops41h 16mFrontier

Deal found 10/29

$255

Wed 12/2411:35 pmSMF - MLI

2 stops10h 38mUnited Airlines

Wed 1/710:47 amMLI - SMF

1 stop9h 54mUnited Airlines

Deal found 10/29

$294

Wed 12/1012:23 pmSMF - MDW

1 stop9h 24mDelta

Wed 12/171:50 pmMDW - SMF

1 stop8h 52mDelta

Deal found 10/28

$299

Tue 3/32:05 pmSMF - STL

1 stop7h 51mHawaiian Airlines

Wed 3/47:00 amSTL - SMF

1 stop8h 13mHawaiian Airlines

Deal found 10/27

$326

Thu 11/136:30 amSMF - PIA

2 stops10h 24mAmerican Airlines

Mon 11/174:26 pmPIA - SMF

1 stop7h 05mAmerican Airlines

Deal found 10/28

$344

Sat 12/208:02 pmSMF - MLI

1 stop22h 32mMultiple Airlines

Sat 1/312:23 pmMLI - SMF

1 stop8h 26mMultiple Airlines

Deal found 10/29

$397

Wed 12/106:10 amSMF - MDW

Nonstop4h 00mSouthwest

Wed 12/1712:05 pmMDW - SMF

1 stop6h 15mSouthwest

Deal found 10/28

$401

Sat 12/137:00 amSMF - ORD

1 stop14h 50mAlaska Airlines

Wed 12/178:59 pmORD - SMF

1 stop16h 25mAlaska Airlines

Deal found 10/27

$260

Thu 1/87:46 pmSMF - ORD

1 stop25h 51mAlaska Airlines

Fri 1/163:49 pmORD - SMF

1 stop20h 08mAlaska Airlines

Deal found 10/28

$263

Tue 11/188:45 amSMF - PIA

1 stop5h 55mUnited Airlines

Sun 11/231:20 pmPIA - SMF

2 stops9h 18mUnited Airlines

Deal found 10/28

$317

Thu 1/296:00 amSMF - STL

1 stop6h 38mDelta

Mon 2/25:00 pmSTL - SMF

2 stops19h 26mDelta

Deal found 10/29

$320

Fri 1/910:34 amSMF - ORD

1 stop11h 03mAlaska Airlines

Wed 1/219:00 amORD - SMF

1 stop15h 58mAlaska Airlines

Deal found 10/28

$272

Thu 1/2910:40 pmSMF - STL

1 stop8h 13mDelta

Tue 2/36:10 amSTL - SMF

2 stops10h 11mDelta

Deal found 10/29

$320

Thu 11/276:20 amSMF - STL

1 stop8h 07mUnited Airlines

Thu 12/41:35 pmSTL - SMF

1 stop6h 11mUnited Airlines

Deal found 10/28

$327

Fri 1/96:29 pmSMF - ORD

1 stop27h 08mAlaska Airlines

Mon 1/123:49 pmORD - SMF

1 stop20h 08mAlaska Airlines

Deal found 10/29

$283

Tue 2/1010:04 amSMF - EVV

2 stops9h 29mAmerican Airlines

Wed 3/112:35 pmEVV - SMF

2 stops9h 27mAmerican Airlines

Deal found 10/27

$389

Fri 1/306:30 amSMF - STL

2 stops13h 08mDelta

Wed 2/46:10 amSTL - SMF

2 stops10h 11mDelta

Deal found 10/29

$324

Thu 1/810:34 amSMF - ORD

1 stop11h 03mAlaska Airlines

Sun 1/183:49 pmORD - SMF

1 stop9h 09mAlaska Airlines

Deal found 10/28

$283

Tue 12/238:10 amSMF - MDW

1 stop6h 55mSouthwest

Tue 12/306:05 amMDW - SMF

1 stop7h 15mSouthwest

Deal found 10/27

$415

Fri 1/3011:45 amSMF - STL

2 stops9h 40mDelta

Mon 2/25:00 pmSTL - SMF

2 stops19h 26mDelta

Deal found 10/29

$324

Thu 11/276:45 amSMF - ORD

1 stop7h 40mUnited Airlines

Thu 12/48:20 pmORD - SMF

Nonstop4h 43mUnited Airlines

Deal found 10/28

$362

Mon 12/296:16 pmSMF - RFD

1 stop15h 09mMultiple Airlines

Sat 1/312:15 pmRFD - SMF

1 stop7h 33mMultiple Airlines

Deal found 10/26

$446

Thu 2/1212:55 pmSMF - ORD

1 stop8h 15mAlaska Airlines

Tue 2/179:00 amORD - SMF

1 stop27h 02mAlaska Airlines

Deal found 10/26

$292

Tue 12/26:15 amSMF - STL

1 stop8h 34mDelta

Fri 12/55:12 pmSTL - SMF

1 stop7h 47mDelta

Deal found 10/29

$327

Tue 3/310:45 amSMF - PIA

1 stop8h 46mUnited Airlines

Tue 3/106:30 amPIA - SMF

1 stop7h 20mUnited Airlines

Deal found 10/28

$379

Fri 12/197:00 amSMF - ORD

1 stop11h 02mAlaska Airlines

Sun 1/48:39 amORD - SMF

1 stop17h 20mAlaska Airlines

Deal found 10/28

$301

Sat 3/711:55 pmSMF - PIA

1 stop7h 48mUnited Airlines

Wed 3/118:50 amPIA - SMF

1 stop6h 40mUnited Airlines

Deal found 10/27

$379

Mon 12/156:10 amSMF - MDW

Nonstop4h 00mSouthwest

Sun 12/217:05 pmMDW - SMF

1 stop6h 45mSouthwest

Deal found 10/28

$508

Tue 3/37:18 pmSMF - MDW

2 stops11h 36mDelta

Wed 3/41:05 pmMDW - SMF

1 stop9h 10mDelta

Deal found 10/27

$350

Last-minute flights from Sacramento to Illinois
Discover last-minute flight deals from Sacramento to Illinois. Data last updated October 29, 2025 and is based on user searches.

Thu 11/64:11 pmSMF - ORD

1 stop27h 37mFrontier

Thu 11/136:00 amORD - SMF

1 stop7h 26mFrontier

Deal found 10/27

$222

Sun 11/95:56 pmSMF - ORD

2 stops18h 08mMultiple Airlines

Wed 11/129:22 pmORD - SMF

1 stop20h 04mMultiple Airlines

Deal found 10/26

$241

Mon 11/1011:17 amSMF - ORD

2 stops21h 57mFrontier

Thu 11/136:30 amORD - SMF

1 stop10h 56mFrontier

Deal found 10/27

$232

Mon 11/1011:17 amSMF - ORD

1 stop10h 58mMultiple Airlines

Tue 11/188:59 pmORD - SMF

1 stop14h 55mMultiple Airlines

Deal found 10/28

$249

Thu 11/136:16 pmSMF - ORD

2 stops25h 32mMultiple Airlines

Sun 11/169:22 pmORD - SMF

1 stop15h 05mMultiple Airlines

Deal found 10/27

$228

Fri 11/1411:17 amSMF - ORD

1 stop10h 58mFrontier

Sun 11/166:00 amORD - SMF

1 stop7h 21mFrontier

Deal found 10/29

$234

Fri 11/1412:58 pmSMF - ORD

2 stops32h 31mMultiple Airlines

Sun 11/169:22 pmORD - SMF

1 stop15h 05mMultiple Airlines

Deal found 10/29

$250

Sun 11/163:18 pmSMF - ORD

2 stops38h 10mMultiple Airlines

Wed 11/199:22 pmORD - SMF

1 stop20h 00mMultiple Airlines

Deal found 10/27

$239

Sun 11/1612:16 pmSMF - STL

1 stop18h 51mFrontier

Thu 11/207:57 pmSTL - SMF

1 stop19h 18mFrontier

Deal found 10/28

$257

Mon 11/1711:17 amSMF - STL

1 stop19h 50mFrontier

Thu 11/207:57 pmSTL - SMF

1 stop19h 18mFrontier

Deal found 10/28

$205

Mon 11/1711:17 amSMF - STL

1 stop19h 50mFrontier

Wed 11/197:45 pmSTL - SMF

2 stops19h 43mFrontier

Deal found 10/28

$221

Thu 11/202:13 pmSMF - ORD

1 stop14h 12mMultiple Airlines

Sun 11/238:18 pmORD - SMF

1 stop18h 25mMultiple Airlines

Deal found 10/29

$240

One-way flights from Sacramento to Illinois
Search for one-way flight options from Sacramento to Illinois. Find affordable one-way fares based on user searches. Data last updated October 29, 2025.

Fri 2/2712:29 pmSMF - STL

1 stop19h 33mFrontier

Deal found 10/28

$75

Sun 1/1112:05 pmSMF - STL

1 stop19h 57mFrontier

Deal found 10/28

$79

Sun 2/2212:29 pmSMF - STL

1 stop19h 33mFrontier

Deal found 10/28

$83

Fri 2/2012:29 pmSMF - STL

1 stop19h 33mFrontier

Deal found 10/29

$84

Fri 1/912:05 pmSMF - STL

1 stop19h 57mFrontier

Deal found 10/28

$85

Fri 2/612:29 pmSMF - STL

1 stop19h 33mFrontier

Deal found 10/28

$94

Mon 1/266:37 pmSMF - STL

2 stops37h 25mFrontier

Deal found 10/29

$101

Sun 2/811:54 amSMF - STL

1 stop26h 55mFrontier

Deal found 10/29

$115

Mon 12/812:35 pmSMF - STL

2 stops31h 58mFrontier

Deal found 10/28

$120

Wed 12/246:16 pmSMF - STL

2 stops13h 24mFrontier

Deal found 10/28

$121

Thu 1/85:32 pmSMF - STL

1 stop14h 30mFrontier

Deal found 10/29

$122

Wed 12/32:50 pmSMF - ORD

1 stop7h 00mAlaska Airlines

Deal found 10/27

$130

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Tue 1/6

1:48 pm-2:29 pm

1 stop22h 41m

Chicago O'Hare Intl

Fri 1/23

9:00 am-12:22 pm

1 stop29h 22m

$252

SacramentoSt. Louis

SMF - STL

SMFSTL

Sacramento Intl

Fri 1/30

12:29 pm-10:02 am

1 stop19h 33m

Lambert-St Louis

Wed 2/4

7:43 pm-10:59 am

2 stops41h 16m

$255

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Sat 12/13

7:00 am-11:50 pm

1 stop14h 50m

Chicago O'Hare Intl

Wed 12/17

8:59 pm-11:24 am

1 stop16h 25m

$260

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 1/8

7:46 pm-11:37 pm

1 stop25h 51m

Chicago O'Hare Intl

Fri 1/16

3:49 pm-9:57 am

1 stop20h 08m

$263

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 1/9

10:34 am-11:37 pm

1 stop11h 03m

Chicago O'Hare Intl

Wed 1/21

9:00 am-10:58 pm

1 stop15h 58m

$272

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Fri 1/9

6:29 pm-11:37 pm

1 stop27h 08m

Chicago O'Hare Intl

Mon 1/12

3:49 pm-9:57 am

1 stop20h 08m

$283

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 1/8

10:34 am-11:37 pm

1 stop11h 03m

Chicago O'Hare Intl

Sun 1/18

3:49 pm-10:58 pm

1 stop9h 09m

$283

SacramentoChicago

SMF - ORD

SMFORD

Sacramento Intl

Thu 2/12

12:55 pm-11:10 pm

1 stop8h 15m

Chicago O'Hare Intl

Tue 2/17

9:00 am-10:02 am

1 stop27h 02m

$292

SacramentoMoline

SMF - MLI

SMFMLI

Sacramento Intl

Wed 12/24

11:35 pm-12:13 pm

2 stops10h 38m

Moline Quad-City

Wed 1/7

10:47 am-6:41 pm

1 stop9h 54m

$294

SacramentoChicago

SMF - MDW

SMFMDW

Sacramento Intl

Wed 12/10

12:23 pm-11:47 pm

1 stop9h 24m

Chicago Midway

Wed 12/17

1:50 pm-8:42 pm

1 stop8h 52m

$299

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 60 results

...

Best time to book a flight from Sacramento to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Sacramento with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sacramento to Illinois

What is the cheapest month to book a flight from Sacramento to Illinois?

Currently, April is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $126). Flying from Sacramento to Illinois in March is currently the most expensive (average of $207). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SMF to IL?

A simple way to save on the total cost of your ticket is to fly from Sacramento to Illinois in the afternoon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Sacramento to Illinois?

Travelers seeking maximum savings on their Sacramento to Illinois flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Illinois

See what other customers who have flown with Southwest, United Airlines, and American Airlines from Sacramento to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Southwest

8.0

Very good

4,241 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

United Airlines

7.4

Good

8,999 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

American Airlines

7.2

Good

11,032 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Spirit Airlines

6.3

Okay

8,114 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Frontier

5.8

Fair

3,124 reviews

Southwest

8.0

Very good

4,241 reviews

Reviews

1 / 20

8.0

Excellent

Walter,Aug 2025

OAK - SAN

Related info for your journey

What airport do you fly from for flights from Sacramento to Illinois?
Most people fly from Sacramento Intl (SMF) if they book a flight from Sacramento to Illinois. Sacramento Intl is conveniently located just 9.4 mi from Sacramento’s city center.
How long is the flight from Sacramento to Illinois?
Departing from Sacramento to Illinois will take you 10h 38m. Airlines will cover a distance of 1644 mi. This flight may include one or multiple stops.
What are the cheapest airlines to fly from Sacramento to Illinois one-way?
To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $117. Delta flights start at $131 while deals on American Airlines start at $250 one-way.
What are the most popular routes from Sacramento to Illinois?
The most popular flight routes from Sacramento to Illinois are Sacramento Intl - Chicago O'Hare Intl, Sacramento Intl - Chicago Midway and Sacramento Intl - Lambert-St Louis.
What are the most reliable airlines from Sacramento to Illinois?
Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Sacramento to Illinois on time: Lufthansa (87%), Air Canada (83%), American Airlines (71%).
What are the cheapest flights from Sacramento to Illinois?
Looking for the cheapest flight from Sacramento to Illinois? While on average our users pay $914, our data indicates the cheapest price to be $155. The most popular route (Sacramento Intl - Chicago O'Hare Intl), is priced around $152.
Can I find deals for flights from Sacramento to Illinois that include hotel bookings?
Yes. In addition to deals on Sacramento to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sacramento to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sacramento to Illinois.
Can I find deals for business class flights from Sacramento to Illinois?
Yes. Cheapflights offers flight deals from Sacramento to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Sacramento to Illinois?
Currently, April is the cheapest month in which you can book a flight from Sacramento to Illinois (average of $126). Flying from Sacramento to Illinois in March is currently the most expensive (average of $207). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 6 airlines flying from Sacramento to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$148	Average$246	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$168	Average$299	FlexibilityNo cancel fee	On-time65%
American Airlines	Cheapest$258	Average$498	FlexibilityNo cancel fee	On-time71%
Delta	Cheapest$260	Average$444	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$307	Average$530	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$335	Average$483	FlexibilityNo cancel fee	On-time63%

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$75+ Cheap flights from Sacramento (SMF) to Illinois

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/27. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Sacramento to Illinois with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Sacramento to Illinois

Keep the following information in mind while searching for Sacramento to Illinois flight deals. Data was last updated October 29, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Sacramento to Illinois

Cheapest flights from Sacramento to IllinoisExplore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

Explore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Sacramento to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Sacramento with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Sacramento to Illinois

What is the cheapest month to book a flight from Sacramento to Illinois?

What is the cheapest time of day to fly from SMF to IL?

Find hourly flight availability from Sacramento to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 29, 2025.

What is the cheapest day to fly from Sacramento to Illinois?

Use this chart to determine the cheapest time to fly round-trip from Sacramento to Illinois. Price data was last updated on December 16, 2024.

Reviews of airlines servicing Illinois

Related info for your journey

Find useful and relevant information for your journey from Sacramento to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly from for flights from Sacramento to Illinois?

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What are the cheapest airlines to fly from Sacramento to Illinois one-way?

What are the most popular routes from Sacramento to Illinois?

What are the most reliable airlines from Sacramento to Illinois?

What are the cheapest flights from Sacramento to Illinois?

Can I find deals for flights from Sacramento to Illinois that include hotel bookings?

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Alternative routes for Sacramento to Illinois

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Top 6 airlines flying from Sacramento to Illinois

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Cheapest flights from Sacramento to Illinois
Explore the most affordable flight options available from Sacramento to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.