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

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 Illinois to Santa Rosa.

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

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from 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 Illinois to Santa Rosa?

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 to Santa Rosa with an airline and back to Illinois with another airline.

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

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 to Santa Rosa from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

$150 CHEAP FLIGHTS from Illinois to Santa Rosa

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Flight Deals

Cheap Flights from Illinois to Santa Rosa

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Illinois to Santa Rosa

Sat, Sep 26 - Sat, Oct 3

6:00 am - 12:09 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

8h 09m1 stop Dallas/Fort Worth

1:08 pm - 10:31 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

7h 23m1 stop Phoenix Sky Harbor Intl

$299American Airlines

Tue, Oct 13 - Wed, Dec 2

5:00 am - 12:40 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

9h 40m1 stop Phoenix Sky Harbor Intl

7:25 am - 4:09 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

6h 44m1 stop Phoenix Sky Harbor Intl

$299American Airlines

Wed, Oct 28 - Mon, Nov 2

5:46 pm - 1:06 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

21h 20m1 stop Seattle/Tacoma Intl

5:23 pm - 5:40 amSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

10h 17m1 stop Seattle/Tacoma Intl

$299Alaska Airlines

Sat, Oct 24 - Wed, Oct 28

7:00 am - 1:06 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

8h 06m1 stop Seattle/Tacoma Intl

7:00 am - 6:20 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

9h 20m1 stop Seattle/Tacoma Intl

$299Alaska Airlines

Wed, Oct 14 - Mon, Oct 19

9:00 am - 9:56 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

14h 56m1 stop Seattle/Tacoma Intl

3:08 pm - 1:18 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

20h 10m1 stop Portland

$299Alaska Airlines

Sat, Sep 26 - Sat, Oct 3

6:00 am - 12:09 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

8h 09m1 stop Dallas/Fort Worth

1:08 pm - 10:31 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

7h 23m1 stop Phoenix Sky Harbor Intl

$300American Airlines

Sat, Oct 10 - Wed, Oct 14

5:00 am - 12:40 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

9h 40m1 stop Phoenix Sky Harbor Intl

1:10 pm - 11:30 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

8h 20m1 stop Phoenix Sky Harbor Intl

$343American Airlines

Tue, Oct 6 - Wed, Oct 7

9:47 am - 4:05 pmSTL Lambert-St Louis-STS Santa Rosa Sonoma County

8h 18m2 stops Minneapolis St Paul Salt Lake City

4:49 pm - 12:44 amSTS Santa Rosa Sonoma County-STL Lambert-St Louis

5h 55m1 stop Salt Lake City

$414Delta

Wed, Oct 28 - Mon, Nov 2

7:00 am - 4:05 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

11h 05m2 stops Detroit Metropolitan Wayne County Salt Lake City

4:49 pm - 9:25 amSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

14h 36m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$454Delta

Sat, Nov 14 - Thu, Nov 19

9:59 am - 4:06 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

8h 07m2 stops Minneapolis St Paul Salt Lake City

11:29 am - 9:47 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

8h 18m1 stop Salt Lake City

$468Delta

Recent last minute flight deals from Illinois to Santa Rosa

Tue, Sep 15 - Sat, Sep 19

2:18 pm - 11:54 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

11h 36m1 stop San Diego

6:16 am - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

11h 05m1 stop San Diego

$638Alaska Airlines

Tue, Sep 15 - Sat, Sep 19

7:20 am - 4:39 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

11h 19m2 stops San Diego Las Vegas Harry Reid Intl

6:16 am - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

11h 05m1 stop San Diego

$643Alaska Airlines

Thu, Sep 10 - Thu, Sep 24

8:17 pm - 11:54 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

29h 37m1 stop San Diego

6:47 pm - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

22h 34m1 stop San Diego

$651Alaska Airlines

Tue, Sep 15 - Sat, Sep 19

7:20 am - 9:54 amORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

28h 34m1 stop San Diego

6:16 am - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

11h 05m1 stop San Diego

$695Alaska Airlines

Tue, Sep 15 - Sat, Sep 19

2:18 pm - 2:12 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

25h 54m1 stop San Diego

6:16 am - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

11h 05m1 stop San Diego

$695Alaska Airlines

Tue, Sep 15 - Sat, Sep 19

7:20 am - 4:39 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

11h 19m2 stops San Diego Las Vegas Harry Reid Intl

6:16 am - 7:21 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

11h 05m1 stop San Diego

$700Alaska Airlines

Sat, Sep 12 - Tue, Sep 15

8:15 am - 3:50 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

9h 35m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

12:39 pm - 10:04 pmSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

7h 25m1 stop Dallas/Fort Worth

$944American Airlines

Sat, Sep 12 - Sun, Sep 13

8:15 am - 3:50 pmORD Chicago O'Hare Intl-STS Santa Rosa Sonoma County

9h 35m2 stops Dallas/Fort Worth Phoenix Sky Harbor Intl

1:08 pm - 12:30 amSTS Santa Rosa Sonoma County-ORD Chicago O'Hare Intl

9h 22m1 stop Phoenix Sky Harbor Intl

$944American Airlines

Useful Info

Low season	February
High season	October
Cheapest flight	$150

Best time to beat the crowds with an average 4% drop in price.

Most popular time to fly and prices are also 4% lower on average.

Flight from Chicago to Santa Rosa

How does KAYAK find such low prices on flights from Illinois to Santa Rosa?
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 Illinois to Santa Rosa.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Santa Rosa?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Santa Rosa from 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 Illinois to Santa Rosa?
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 to Santa Rosa with an airline and back to Illinois with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Santa Rosa?
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 to Santa Rosa from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.