$137 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 9/23. 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

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
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Flights Deals

Best Illinois Flight Deals from Santa Rosa

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Moline
Moline1 stop$626
St. Louis
St. Louis1 stop$318
Moline
Moline1 stop$626
St. Louis
St. Louis1 stop$318

Cheap Flights from Santa Rosa to Illinois

 
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

Fri, Nov 14 - Tue, Nov 18
Alaska Airlines Logo
2:29 pm - 6:22 amSTS-ORD
13h 53m1 stop
Alaska Airlines Logo
8:00 am - 1:37 pmORD-STS
7h 37m1 stop
$292Alaska Airlines
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Tue, Sep 30 - Fri, Oct 3
Alaska Airlines Logo
2:28 pm - 11:59 pmSTS-ORD
7h 31m1 stop
Alaska Airlines Logo
5:45 pm - 1:34 pmORD-STS
21h 49m1 stop
$298Alaska Airlines
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Fri, Nov 14 - Tue, Nov 18
Alaska Airlines Logo
7:35 pm - 9:39 pmSTS-ORD
24h 04m2 stops
Alaska Airlines Logo
8:00 am - 5:45 pmORD-STS
11h 45m2 stops
$303Alaska Airlines
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Wed, Oct 1 - Wed, Oct 8
Hawaiian Airlines Logo
7:00 am - 5:34 pmSTS-STL
8h 34m1 stop
Hawaiian Airlines Logo
3:57 pm - 9:54 pmSTL-STS
7h 57m1 stop
$318Hawaiian Airlines
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Tue, Jul 1 - Sat, Jul 5
American Airlines Logo
4:16 pm - 12:32 amSTS-ORD
6h 16m1 stop
American Airlines Logo
7:22 am - 12:31 pmORD-STS
7h 09m1 stop
$489American Airlines
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Sun, Aug 3 - Sat, Aug 9
Hawaiian Airlines Logo
8:01 pm - 5:40 amSTS-ORD
7h 39m1 stop
Hawaiian Airlines Logo
1:03 pm - 7:07 pmORD-STS
8h 04m1 stop
$499Hawaiian Airlines
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Thu, Jul 10 - Thu, Jul 17
American Airlines Logo
12:20 pm - 11:16 pmSTS-MLI
8h 56m1 stop
American Airlines Logo
6:00 am - 3:36 pmMLI-STS
11h 36m2 stops
$626American Airlines
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Sat, Jul 12 - Mon, Jul 14
Hawaiian Airlines Logo
11:55 am - 11:39 pmSTS-ORD
9h 44m1 stop
Hawaiian Airlines Logo
6:00 am - 1:25 pmORD-STS
9h 25m1 stop
$644Hawaiian Airlines
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Thu, Jul 3 - Mon, Jul 7
American Airlines Logo
4:17 pm - 12:32 amSTS-ORD
6h 15m1 stop
American Airlines Logo
6:00 am - 11:40 amORD-STS
7h 40m1 stop
$759American Airlines
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Thu, Jul 10 - Thu, Jul 17
American Airlines Logo
4:16 pm - 10:55 amSTS-MLI
16h 39m2 stops
American Airlines Logo
7:00 am - 3:36 pmMLI-STS
10h 36m2 stops
$843American Airlines
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Useful Info

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 is the cheapest month to fly from Santa Rosa to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Santa Rosa 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 Santa Rosa to Illinois is December, when tickets cost $319 (return) on average. On the other hand, the most expensive months are February and November, when the average cost of round-trip tickets is $868 and $740 respectively.

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 seasonJanuary
High seasonNovember
Cheapest flight$137
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 50% 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 10000 reviews
7.8Comfort
8.5Crew
7.1Entertainment
7.1Food
8.1Boarding
Airline reviews

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

8.0 ExcellentAnonymous, Jun 2025OAK - SEA
Read more Alaska Airlines reviews

The Alaska app and website were not fully operational. I had to spend about 15 minutes at the counter doing things that should have been completed online. The agent was very nice and helpful, however.

Flying on Hawaiian Airlines was good. But, getting a boarding pass was a hassle. I booked what I thought was an Alaska Airlines flight that was actually a Hawaiian Airlines flight. I couldn't check in online. I had to wait for the Hawaiian Airlines counter to open so I could get my boarding pass which was a requirement for me to get in The Club or the Centurion Lounge. (I had no check in luggage so I didn't expect to have to physically check in.) The Alaska Airlines staff blamed the FAA for the problem.

Staff are helpful and patient. I don’t appreciate the almost 5 hours delay and also the delay of our luggage and being switched from one carousel to another to pick them up.

Staff were great but we were delayed on the tarmac for over an hour.

Great crew, smooth flight and landing. Wish they would offer Dr. Pepper and a choice of flavors of pretzels.

Thank you still providing bags for vomit. My son had a migraine and needed a bag to vomit in and it was right there behind the seat in front of us. Thank you!

We waited over an hour for our luggage to arrive at the carousel in Seattle.

The plane was delayed a bit. It wasn't a huge problem though, as we were heading back home.

Flight was great. Boarding was crazy because another flight was boarding late next to ours so everyone was standing and in the way.

Comfortable seat, a little delay, very informative. Love Wi-Fi

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Not sure the logic of the boarding in Groups. I was loaded first on the aisle. Then the guy in the middle. Then the guy by the window. Constantly holding up the other people boarding behind them with us blocking the aisle and this happened in most of the other rows

To start, I’d like to say that every American Airline personnel I interacted with on the ground, especially flight crew, was very friendly and did their best to help me out. Despite this, however, my experience with the airline was an entire mess. The 7:19 PM flight was heavily delayed due to weather, and pushed to 10:30 AM the next morning. Because of this, I had to spend the night inside of the airport. At some point later in the night, I got an email saying that the flight had been canceled. I called the support number, and the representative on the other line told me that the flight was still on and that I didn’t need to rebook. The next morning, no one came to the gate to open the door for the crew until almost 11 AM. By this time the flight crew had been waiting for over an hour, and they had called management to get someone to open the door for them multiple times. Around 11:30, the gate screen had changed to a different flight. I ended up buying a last minute ticket with Southwest airline just to get to Chicago, because the next flight with American wasn’t until 7:19 pm that day. Now, earlier that morning my suitcase had been sent ahead of me to ORD. I went to baggage claim to ask them if I could have my suitcase forwarded to where I was staying. The representative at SDF baggage claim said they could and put the claim in for me. As I was going back through TSA, I got an email that the airline had found my suitcase, but the next step was to send it BACK to SDF. I called the airline support number again, and I made it clear that my suitcase needed to stay in Chicago and to not come back to SDF. The representative told me that they would hold my suitcase at ORD and that it wasn’t going to be forwarded anywhere. Once I got there, I found that they had loaded my suitcase onto a plane to send it back to SDF. Thankfully, I had gotten to the baggage claim counter in time for them to put in a request to bring my suitcase back up. My refund with the airline is processing already, but because of this entire experience and miscommunication at every turn of the way, I will not book with American Airlines in the future.

The plane was late and then sat on the runway for almost 45 minutes before taking off.

Crew professional. Easy bag drop off. On time. Good entertainment.

Everything was great. Boarding, early departure, early arrival, and deplaning were smooth. Smooth flight.

Per usual, flight status, staff courtesy and professionalism were excellent

Everything was on time, we arrived early, everything worked well.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

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

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