$139 Find Cheap Flights from Santa Rosa to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Santa Rosa to Illinois departing on 2/3. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santa Rosa to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santa Rosa to Illinois, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Book Cheap Santa Rosa 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 Santa Rosa 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 Santa Rosa to Illinois

Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
6:52 pm - 11:37 pm
STS
-
ORD
26h 45m1 stop
Alaska Airlines Logo
8:00 am - 12:22 pm
ORD
-
STS
30h 22m2 stops
$298Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
6:52 pm - 11:37 pm
STS
-
ORD
26h 45m1 stop
Alaska Airlines Logo
3:44 pm - 11:11 pm
ORD
-
STS
9h 27m1 stop
$300Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
9:33 pm - 11:50 pm
STS
-
ORD
24h 17m1 stop
Alaska Airlines Logo
6:06 pm - 12:22 pm
ORD
-
STS
20h 16m2 stops
$308Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
9:33 pm - 11:50 pm
STS
-
ORD
24h 17m1 stop
Alaska Airlines Logo
3:44 pm - 11:11 pm
ORD
-
STS
9h 27m1 stop
$310Alaska Airlines
Thu, Jan 29 - Thu, Feb 5
Hawaiian Airlines Logo
9:33 pm - 1:54 pm
STS
-
STL
14h 21m1 stop
Hawaiian Airlines Logo
2:50 pm - 11:59 pm
STL
-
STS
11h 09m1 stop
$325Hawaiian Airlines
Thu, Dec 25 - Mon, Jan 5
Alaska Airlines Logo
8:17 pm - 5:02 am
STS
-
ORD
6h 45m1 stop
Alaska Airlines Logo
8:39 am - 11:59 pm
ORD
-
STS
17h 20m1 stop
$325Alaska Airlines
Thu, Jan 8 - Mon, Jan 12
Alaska Airlines Logo
6:30 pm - 11:50 pm
STS
-
ORD
27h 20m2 stops
Alaska Airlines Logo
8:00 am - 12:22 pm
ORD
-
STS
30h 22m2 stops
$333Alaska Airlines
Thu, Feb 26 - Sun, Mar 1
Alaska Airlines Logo
7:57 pm - 11:56 pm
STS
-
ORD
25h 59m1 stop
Alaska Airlines Logo
7:00 am - 11:50 pm
ORD
-
STS
18h 50m1 stop
$362Alaska Airlines
Thu, Feb 26 - Sun, Mar 1
Alaska Airlines Logo
7:48 pm - 4:33 pm
STS
-
ORD
18h 45m2 stops
Alaska Airlines Logo
7:00 am - 11:50 pm
ORD
-
STS
18h 50m1 stop
$363Alaska Airlines
Thu, Dec 25 - Sun, Jan 4
Alaska Airlines Logo
8:17 pm - 5:02 am
STS
-
ORD
6h 45m1 stop
Alaska Airlines Logo
8:58 pm - 11:59 pm
ORD
-
STS
29h 01m1 stop
$380Alaska Airlines
Booking Insights

KAYAK's insights & trends for Santa Rosa to Illinois flights

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

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

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

If you are looking for a flight deal from Santa Rosa to Illinois, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Illinois, Tuesday is the cheapest day to fly and Wednesday is the most expensive.

Good to know

Low seasonNovember
Cheapest flight$139
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 32% increase in price.
Flight from Santa Rosa to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Santa Rosa 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 Santa Rosa to Illinois.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Santa Rosa 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 Santa Rosa 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 Santa Rosa 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 Santa Rosa 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 Santa Rosa to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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

    The cheapest time of day to fly to Illinois is generally in the evening, when round-trip flights cost $545 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $577.

Reviews of the top airlines flying from Santa Rosa to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Santa Rosa 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 Santa Rosa 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.
8.0
Alaska AirlinesOverall score based on 11455 reviews
8.1Boarding
7.1Food
7.0Entertainment
8.5Crew
7.8Comfort
Airline reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

8.0 ExcellentEvie, Dec 2025
SAN - HNL
Read more Alaska Airlines reviews

See previous. It was the flight from Honolulu to Kapalua that was cancelled.

The flight attendants were excellent and I was in the back of the plane. Much much better than recent JetBlue experiences on that route and better than Delta on that route.

I’m not sure there is anything that can be improved, even the cost was fantastic.

Poor. They should have given me a row with more room and instead they put me in a middle seat with two strangers next to me

They were so kind to us! The entire staff were so good to us when we had our service dog join our trip and we couldn't be more grateful!

Larger seats and more room would elevate the experience. Otherwise, it was good!

Flight crew and flight were good. But it departed two hours late.

They changed our flight from a one stop 3 hour layover to a non-stop. Saved us hours and got us there sooner.

The ground crew did not supply drink or snacks during the layover in SFO. So there weren't many options. Otherwise, it was all great.

No accommodation or credit offered for cancelled layover flight to Eugene from portland

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

After we landed we sat on the tarmac for 1.5 hours waiting to get to our gate. Ridiculous.

Terrible. Flight delayed for more than 8 hours with only a $12 meal voucher provided for the inconvenience. The airplane did not have breaks on arrival yet they still made us go through the motions and board on time knowing we could not take off then sit for 40+ minutes before having to get of the time. A complete waste of my time. I cannot believe they can stay business with these shenanigans. I’ll avoid this company like the plague moving forward as the lack of accountability is disgraceful.

This was the best 2 flights I have had with American out of SGF. Great crew both flights.

Excellent - explanations were clear staff was nice and flight was comfortable

Lost bag and 2 days no word leaving for cruise no clothes or stuff

Any flight to ORD after about 2pm this summer has been challenging. Flight was delayed getting in (coming from ORD) and that led to it not leaving before a ground stop due to lightening before they could fuel the plane, and so forth. They made up some time but we were still late in arriving at ORD, and that led to missed connections.

Everything you need to know for your flight from Santa Rosa to Illinois

Information on your arrival and departure airports