$111 Find Cheap Flights from Sacramento to Illinois - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sacramento to Illinois departing on 8/11. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sacramento to Illinois.
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Cheap Flights from Sacramento to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago1 stop$369
Moline
Moline2 stops$385
Peoria
Peoria1 stop$349
Bloomington
Bloomington1 stop$349
Champaign
Champaign2 stops$449
Springfield
Springfield1 stop$557
St. Louis
St. Louis1 stop$270
Paducah
Paducah2 stops$444
Chicago
Chicago1 stop$369
Moline
Moline2 stops$385
Peoria
Peoria1 stop$349
Bloomington
Bloomington1 stop$349
Champaign
Champaign2 stops$449
Springfield
Springfield1 stop$557
St. Louis
St. Louis1 stop$270
Paducah
Paducah2 stops$444

Book Cheap Sacramento to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sacramento to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sacramento to Illinois

Wed, Jul 29 - Sun, Aug 2
Frontier Logo
5:07 pm - 6:15 pm
SMF
-
STL
23h 08m
1 stop
Frontier Logo
7:10 pm - 6:49 pm
STL
-
SMF
25h 39m
1 stop
$270Frontier
Wed, Aug 19 - Sun, Aug 23
Frontier Logo
5:10 pm - 7:36 pm
SMF
-
STL
24h 26m
1 stop
Frontier Logo
8:21 pm - 4:15 pm
STL
-
SMF
21h 54m
1 stop
$271Frontier
Thu, Aug 6 - Wed, Aug 12
Southwest Logo
3:00 pm - 12:45 am
SMF
-
STL
7h 45m
1 stop
Southwest Logo
8:35 am - 10:35 am
STL
-
SMF
4h 00mnonstop
$297Southwest
Sat, Sep 5 - Sat, Sep 12
American Airlines Logo
5:31 am - 4:19 pm
SMF
-
BMI
8h 48m
1 stop
American Airlines Logo
4:24 pm - 11:34 pm
BMI
-
SMF
9h 10m
1 stop
$349American Airlines
Thu, Jul 16 - Tue, Jul 21
American Airlines Logo
11:10 pm - 9:17 am
SMF
-
PIA
8h 07m
1 stop
American Airlines Logo
4:43 pm - 10:33 pm
PIA
-
SMF
7h 50m
1 stop
$349American Airlines
Sat, Sep 5 - Sat, Sep 12
Delta Logo
12:16 pm - 9:47 pm
SMF
-
BMI
7h 31m
1 stop
Delta Logo
6:01 am - 6:33 pm
BMI
-
SMF
14h 32m
2 stops
$354Delta
Sat, Sep 5 - Sat, Sep 12
Delta Logo
6:45 pm - 11:27 am
SMF
-
BMI
14h 42m
2 stops
Delta Logo
6:01 am - 6:33 pm
BMI
-
SMF
14h 32m
2 stops
$359Delta
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
2:25 pm - 8:37 pm
SMF
-
ORD
4h 12mnonstop
United Airlines Logo
4:10 pm - 6:48 pm
ORD
-
SMF
4h 38mnonstop
$374United Airlines
Wed, Oct 28 - Sun, Nov 1
Southwest Logo
8:55 pm - 5:45 am
SMF
-
MDW
6h 50m
1 stop
Southwest Logo
5:20 am - 10:30 am
MDW
-
SMF
7h 10m
1 stop
$377Southwest
Thu, Aug 6 - Tue, Aug 11
United Airlines Logo
2:17 pm - 8:33 pm
SMF
-
ORD
4h 16mnonstop
United Airlines Logo
9:09 am - 11:51 am
ORD
-
SMF
4h 42mnonstop
$378United Airlines
Booking Insights

KAYAK's insights & trends for Sacramento to Illinois flights

Get data-powered insights and trends into flights from Sacramento to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Sacramento to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Sacramento to Illinois departing in July.

What is the cheapest Sacramento to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Sacramento found in the last 5 days was to Chicago, at $358 round-trip. The most popular route is from Sacramento (SMF) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 5 days was $358.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Sacramento to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $481 on average. Morning departures are around 7% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $563.

Can I save money by flying with a layover from Sacramento to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $473, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Sacramento to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Sacramento to Illinois is September, when tickets cost $84 (return) on average. On the other hand, the most expensive months are November and February, when the average cost of round-trip tickets is $205 and $199 respectively.

What’s the cheapest day of the week to fly from Sacramento to Illinois?

The average price of all round-trip flights from Sacramento to Illinois clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Illinois on a Wednesday and more expensive on a Sunday. On your return trip to Sacramento, you should consider flying back on a Saturday, and avoid Mondays for better deals.

How far in advance should I book a flight from Sacramento to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Sacramento to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Sacramento to Illinois, you should book around 5 weeks before departure, which saves you about 42% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$111
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 31% increase in price.
Flight from Sacramento to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Sacramento to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Sacramento to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Sacramento to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Sacramento to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Sacramento to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Sacramento to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Sacramento to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Sacramento to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Sacramento to the following destinations at these prices or less: Chicago $257 one-way - $477 round-trip; Chicago $250 one-way - $462 round-trip

Reviews of the top 5 airlines serving from Sacramento to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Sacramento to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Sacramento to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12522 reviews
8.5Crew
7.8Comfort
7.0Entertainment
7.1Food
8.1Boarding
Airline reviews

Never had so many staff members be rude and disrespectful. I had a staff member sarcastically call me “girly” after making me wait 20 minutes to be seen by her. I was able to print my luggage tag and she told me I was too late to check luggage I said the system obviously disagrees. And you had me wait way too long while you asked every single passenger ahead of me about their Disney vacations. She wasted so much time to then say “girly your bag won’t make it on the plane” I’m not her girly I’m a full grown adult. She needs to learn a hell of a lot of respect

2.0 MediocreBridget, Jun 2026
SNA - SEA
Read more Alaska Airlines reviews

Never had so many staff members be rude and disrespectful. I had a staff member sarcastically call me “girly” after making me wait 20 minutes to be seen by her. I was able to print my luggage tag and she told me I was too late to check luggage I said the system obviously disagrees. And you had me wait way too long while you asked every single passenger ahead of me about their Disney vacations. She wasted so much time to then say “girly your bag won’t make it on the plane” I’m not her girly I’m a full grown adult. She needs to learn a hell of a lot of respect

My flight was several times rescheduled and then finally canceled.

The flight itself was great. But we had to wait over an hour to deplane so I missed my train. Not the crews fault. They were wonderful!

Flying into PAE was so easy because it’s baggage claim is quick and accesible. I had a car rental and the counter is inside the baggage claim area, very convenient.

It was a very short flight so there really wasn’t any entertainment my. The little pretzels were good though and the cabin crew was awesome.

The first flight was fine, great crew, but the plane was delayed 45 minutes to go to Seattle because of they were missing a ramp. That would make sense if the plane was actually at the gate. Not if we’re still waiting for a plane. After we landed we waited 30-45 minutes on the tarmac just to get off the plane. Alaska made me miss my connecting flight, wasting my time, and my money. I should honestly be reimbursed, but hey, when does the airline ever actually take accountability? Never.

Over all it was great. My original flight was canceled but they quickly rebooked me. I was frustrated because I had to cancel my entire plans for the day but all considered, not bad. The crew tried to keep us calm while we sat in the plane for was felt was an hour or so but they could use a bit of a script. The seats were comfortable and I would give it another try.

Flight delayed Didn’t send second leg of trip itemerary First class was fair, but not great.

Short trip, was nice to have a drink on the short flight still.

The flight kept getting delayed due to a maintenance issue. That happens, but there is no excuse for changing the gate FIVE TIMES, including one time nearly all the way across SeaTac. After we were delayed for 3+ hours, they did send us (via email) a $12 meal voucher...except you can't find a $12 meal anywhere in that airport, unless you consider a bag of M&M's and a bottle of water a meal. The plane had one problem after another but finally took off 4.5 hours late. This caused us to miss our hotel shuttle at ORD (they didn't run past midnight and it was 3 am) so we had to wait 25 minutes and pay for an Uber. I did get a $50 flight voucher from Alaska...big deal. Barely covers my Uber ride that I shouldn't have needed.

Flight was delayed over 3 hours. Planes were dirty. Staff indifferent. And they serve vegan pretzels as snacks.

Was fine, delayed and feels like southwest is always late

The flight was smooth. The Southwest experience has degraded overall, but this one was okay.

The checking experience in Orlando was terrible, almost missed the flight. Too many travelers and Southwest completely understaffed.

The entire experience from boarding to landing was amazing! The crew were very friendly. Will definitely be back.

no service at all due to turbulence. they should've at least given us snacks, there were only 10 people on the entire flight.

Delayed flight, lack of information, boarding process is a mess as is the carryon luggage causing issues when leaving the plane….just a poor experience.

Comfortable. Easy. No problems. Just wish they had gf options for snacks.

The crew was very kind and made going to Hawaii relaxing and fun to look forward to! Thank you Southwest for a pleasant flight!

For the first time in a long time, the Wi-Fi actually worked the entire flight! The flight crew was amazing as usual.

Be on time? When not on time a circling for over an hour offer more than 1 bag of chips to the passengers? It was a 7 hour flight by the time we got done.

Flight delayed four separate times. I’m now one hour hours late to landing.

Checkin was good, fllight ws good. Onlly complaint is lack of foot on 6 hour flight from Seattle to Boston. Snacks were flimsy - chips and cookies. could have offered something more substantial for such a long flight. I know you can buy food in airport but for the price you pay for a ticket, they should step up for the passengers.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

While they turned off most cabin lights to allow people to sleep, I was bothered by how bright the side lights still were. It was still quite bright for me in a window seat, when I wish I could have slept!

Generally on time departures and arrivals, clean planes, sky miles membership provides great benefits (complimentary upgrades, etc).

N Everything was perfect from boarding to assistance to baggage in Tampa

Loved the crew! Sucks that we went from 1 hour and 8 minute layover to a 3 hour layover. But weather sucks like that.

Fast, lovely scenery, great info on the Delta flight screen about landmarks we were flying over. Great landing!

Long flight but comfortable and not freezing as I have experienced on Hawaiian flights to the islands. They gave us blankets just in case. Nice touch.

Over 5 hour delay with minimal updates or ability to standby for alternative flights. During boarding and 1 hr+ wait for takeoff, seats were drenched w water from air conditioning condensation and always leftover crumbs on carpet and seats

Boarded early, left early, arrived 40 mins early! A win win for me!

These airplanes should be illegal. The seats are two tight, it is a safety issue. Wheelchair support was ridiculously slow. We almost missed our flight.

This flight is a quick way to get to Chicago, but a bit expensive.

O’hsre taxi and deboarding took 40 minutes. Needed 20 minutes extra time between connecting flights to avoid running through terminal.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

boarded early to only find out that flight would sit at gate for 45 min to an hour. Landed in chicago and sat on runway for over an hour before got to gate. Total delay was extensive for a 45 min flight door to door.

The flight was significantly delayed. The inbound flight from EWR was delayed departing because of mechanical problems. My original departure from CLT was 5:28 pm but due to the delay of the inbound flight, after arrival, deplaning, cleaning, boarding, we did not push back from the gate until 9:00 pm. Once in the air, the flight was smooth and what was originally supposed to be an arrival in ORD at 7:30 pm local time turned out to be 9:35 pm.

The flight I was supposed to be on was supposed to take off at 1:50 from State College. It was delayed over and over and over again until somehow I had to rebook on a flight that was supposed to have left State College at 8 am that morning but didn't end up taking off until almost 6 pm. Not only was this completely unacceptable, the "token from United" was a 15 dollar meal voucher that has to be used by today. I would personally like some miles added to my account for this inconvenience. I was in transit for 8 hours from the time I arrive at State College Aiport to when I got home. I was supposed to be home at 3 pm and I returned at 8 pm. Unacceptable. I have not been on an on Time united flight in nearly 5 years.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

The flight attendants were extremely sourly and borderline rude. I did not feel appreciated as an AA customer once.

The flight from LA to Chicago was smooth and service was very good overall.

The Mario was so helpful and provided amazing customer service however l have being waiting for a callback for almost a week now and have not heard anything further after l informed them l wanted to change my date of traveling because of my hospital appointment even send them proof and l was unable to use manag your booking on their website is a bit frustrating and l would appreciate an update on My request as soon as possible. And have called them times without numbers no response

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

They lost my baggage and I am still struggling to the information and update

Requested early boarding to disinfect seat, tray table, etc. before general boarding. Instructed to board after wheelchair passengers. Waited on jet bridge behind 12 wheelchair passengers. Stopped immediately after entering plane to wait for gate agent in rear of plane cleaning a seat that was wet, got to my row and found both seats adjacent to mine already occupied, with the lack of room making it impossible for me to clean my own space and defeating the purpose of my boarding early. Cleaned the armrests and tray table as best I could.

The wifi experience is awful. I had to try again and again, taking over 30 minutes, to connect to the wifi. I had to watch the same two ads over and over until I was finally successful. Once connected, it was anything but "high speed" and disconnected at least three times during the flight.

It was good, the staff was great, and the food, was as usual, tea and biscuit. Bathroom was clean, and the plane was clean as well.

Very good I can’t complain one bit. Thank you American Airlines for making my flight enjoyable and safe!

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

Information on your arrival and departure airports