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Cheap flights from Santa Rosa (STS) to Illinois from $163

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 7/15. 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.
STS — ORD
Mai 18 — Mai 251
From?
To?
Sa 5/18
Sa 5/25
1 adult, Economy
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How far in advance should I book a flight from Santa Rosa to Illinois?

Travelers have found it’s best to book a flight 47 days in advance to save up to 39% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 47 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Santa Rosa to Illinois 1-2 weeks in advance for as low as $323, or $473 for flights within the next 24 hours.

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

October is one of the best times of the year to fly to Illinois from Santa Rosa. Prices for October average $320 per person but you can even find prices for as low as $88. The most expensive prices can be found in the month of June. Opting for a October flight can save you 20% on your journey compared to booking in June

When is the cheapest time to fly from Santa Rosa to Illinois (STS - IL)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Santa Rosa to Illinois as you normally would.

Cheap Alaska Airlines flights from Santa Rosa to Illinois

Explore cheap flight options specifically provided by Alaska Airlines for the route between Santa Rosa and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
Check out some of the cheapest Alaska Airlines flights we've come across from Santa Rosa to Illinois. It's recommended that users confirm their flight details before booking.
Do 6/202:44 pmSTS - ORD
1 stop11h 56mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$483
Di 8/202:36 pmSTS - STL
1 stop7h 23mAlaska Airlines
Sa 8/242:34 pmSTL - STS
1 stop9h 33mAlaska Airlines
Deal found 5/12$488
Do 6/2010:21 amSTS - ORD
2 stops16h 19mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$526
Di 8/2010:58 amSTS - STL
2 stops24h 35mAlaska Airlines
Sa 8/242:34 pmSTL - STS
1 stop9h 33mAlaska Airlines
Deal found 5/12$527
Di 8/207:55 pmSTS - STL
2 stops15h 38mAlaska Airlines
Sa 8/242:34 pmSTL - STS
2 stops21h 25mAlaska Airlines
Deal found 5/12$571
Do 7/117:01 pmSTS - ORD
1 stop8h 14mAlaska Airlines
So 7/149:22 pmORD - STS
2 stops15h 19mAlaska Airlines
Deal found 5/12$643
Mi 5/2211:56 amSTS - ORD
1 stop14h 44mAlaska Airlines
So 5/267:00 amORD - STS
2 stops36h 50mAlaska Airlines
Deal found 5/12$674
Do 7/113:45 pmSTS - ORD
2 stops23h 39mAlaska Airlines
So 7/149:22 pmORD - STS
2 stops15h 19mAlaska Airlines
Deal found 5/12$696
Mi 5/227:28 pmSTS - ORD
1 stop7h 12mAlaska Airlines
So 5/262:54 pmORD - STS
1 stop22h 22mAlaska Airlines
Deal found 5/12$715

Cheap American Airlines flights from Santa Rosa to Illinois

Explore cheap flight options specifically provided by American Airlines for the route between Santa Rosa and Illinois. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
Some of the lowest-priced American Airlines flights we've found at this time heading from Santa Rosa to Illinois. Make sure to examine the flight information before completing your reservation.
Do 7/1112:28 pmSTS - ORD
1 stop8h 23mAmerican Airlines
So 7/146:00 amORD - STS
1 stop7h 48mAmerican Airlines
Deal found 5/12$608
Do 6/204:14 pmSTS - ORD
2 stops13h 08mAmerican Airlines
Sa 6/227:00 amORD - STS
2 stops10h 43mAmerican Airlines
Deal found 5/13$712
Sa 8/2412:27 pmSTS - MLI
1 stop6h 38mAmerican Airlines
Di 8/276:45 amMLI - STS
1 stop7h 02mAmerican Airlines
Deal found 5/11$758
Sa 8/2412:27 pmSTS - MLI
1 stop6h 38mAmerican Airlines
Di 8/277:00 amMLI - STS
2 stops10h 45mAmerican Airlines
Deal found 5/11$762
Sa 8/244:15 pmSTS - MLI
2 stops21h 13mAmerican Airlines
Di 8/277:00 amMLI - STS
2 stops10h 45mAmerican Airlines
Deal found 5/11$1,007
Sa 5/184:20 pmSTS - ORD
2 stops11h 40mAmerican Airlines
Sa 5/256:30 amORD - STS
2 stops11h 20mAmerican Airlines
Deal found 5/13$1,051
Sa 5/184:20 pmSTS - ORD
2 stops11h 40mAmerican Airlines
Fr 5/246:30 amORD - STS
2 stops11h 20mAmerican Airlines
Deal found 5/13$1,089

Cheap Santa Rosa to Illinois flights in May & June 2024

Find cheap flight options from Santa Rosa to Illinois specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Prices were last updated on Mai 13, 2024.
Listed are some of the best fares we've found on flights departing from Santa Rosa to Illinois in 2024. More deals are always being added, so be sure to check back regularly.
Do 6/202:44 pmSTS - ORD
1 stop11h 56mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$483
Do 6/2010:21 amSTS - ORD
2 stops16h 19mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$526
Mi 5/2211:56 amSTS - ORD
1 stop14h 44mAlaska Airlines
So 5/267:00 amORD - STS
2 stops36h 50mAlaska Airlines
Deal found 5/12$674
Do 6/204:14 pmSTS - ORD
2 stops13h 08mAmerican Airlines
Sa 6/227:00 amORD - STS
2 stops10h 43mAmerican Airlines
Deal found 5/13$712
Mi 5/227:28 pmSTS - ORD
1 stop7h 12mAlaska Airlines
So 5/262:54 pmORD - STS
1 stop22h 22mAlaska Airlines
Deal found 5/12$715
Fr 5/247:45 amSTS - ORD
1 stop12h 10mMultiple Airlines
Mo 5/2710:14 amORD - STS
2 stops11h 11mMultiple Airlines
Deal found 5/13$720
Mi 5/2211:56 amSTS - ORD
1 stop14h 44mAlaska Airlines
So 5/266:15 amORD - STS
1 stop9h 09mAlaska Airlines
Deal found 5/11$733
Fr 5/246:30 amSTS - ORD
2 stops13h 25mMultiple Airlines
Mo 5/2710:14 amORD - STS
2 stops11h 11mMultiple Airlines
Deal found 5/13$771
Fr 5/247:28 pmSTS - ORD
1 stop16h 26mAlaska Airlines
Mo 5/278:00 amORD - STS
1 stop29h 16mAlaska Airlines
Deal found 5/13$785

Santa Rosa to Illinois 2024 flight deals

Discover exclusive flight deals for travel between Santa Rosa and Illinois in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
Listed are some of the best fares we've found on flights departing from Santa Rosa to Illinois in 2024. More deals are always being added, so be sure to check back regularly.
So 7/2811:05 amSTS - ORD
1 stop17h 23mMultiple Airlines
Do 8/18:05 pmORD - STS
2 stops23h 50mMultiple Airlines
Deal found 5/11$413
So 7/2811:05 amSTS - ORD
1 stop17h 23mMultiple Airlines
Do 8/19:36 amORD - STS
1 stop9h 09mMultiple Airlines
Deal found 5/11$417
So 7/2812:20 pmSTS - ORD
3 stops29h 39mMultiple Airlines
Do 8/19:36 amORD - STS
1 stop9h 09mMultiple Airlines
Deal found 5/11$464
Do 6/202:44 pmSTS - ORD
1 stop11h 56mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$483
Di 8/202:36 pmSTS - STL
1 stop7h 23mAlaska Airlines
Sa 8/242:34 pmSTL - STS
1 stop9h 33mAlaska Airlines
Deal found 5/12$488
Do 6/2010:21 amSTS - ORD
2 stops16h 19mAlaska Airlines
Sa 6/228:00 amORD - STS
1 stop12h 16mAlaska Airlines
Deal found 5/13$526
Di 8/2010:58 amSTS - STL
2 stops24h 35mAlaska Airlines
Sa 8/242:34 pmSTL - STS
1 stop9h 33mAlaska Airlines
Deal found 5/12$527
Di 8/207:55 pmSTS - STL
2 stops15h 38mAlaska Airlines
Sa 8/242:34 pmSTL - STS
2 stops21h 25mAlaska Airlines
Deal found 5/12$571
Do 7/1112:20 pmSTS - ORD
2 stops16h 08mMultiple Airlines
So 7/149:29 pmORD - STS
3 stops25h 26mMultiple Airlines
Deal found 5/12$574

Santa Rosa to Illinois flights leaving soon

Find last-minute flight options from Santa Rosa to Illinois for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
Check out these flights departing soon from Santa Rosa to Illinois. Users should examine the flight details to ensure there are no surprises.
Mi 5/2211:56 amSTS - ORD
1 stop14h 44mAlaska Airlines
So 5/267:00 amORD - STS
2 stops36h 50mAlaska Airlines
Deal found 5/12$674
Mi 5/227:28 pmSTS - ORD
1 stop7h 12mAlaska Airlines
So 5/262:54 pmORD - STS
1 stop22h 22mAlaska Airlines
Deal found 5/12$715
Mi 5/2211:56 amSTS - ORD
1 stop14h 44mAlaska Airlines
So 5/266:15 amORD - STS
1 stop9h 09mAlaska Airlines
Deal found 5/11$733
Mi 5/227:28 pmSTS - ORD
1 stop7h 12mAlaska Airlines
So 5/267:00 amORD - STS
2 stops29h 18mAlaska Airlines
Deal found 5/11$814
Sa 5/187:00 amSTS - ORD
1 stop9h 29mAlaska Airlines
Mi 5/228:00 amORD - STS
1 stop12h 48mAlaska Airlines
Deal found 5/13$833
Sa 5/182:18 pmSTS - ORD
1 stop7h 31mAlaska Airlines
Fr 5/248:00 amORD - STS
1 stop12h 48mAlaska Airlines
Deal found 5/13$878
Sa 5/187:00 amSTS - ORD
1 stop9h 29mAlaska Airlines
Mi 5/226:00 amORD - STS
2 stops14h 48mAlaska Airlines
Deal found 5/13$882
Sa 5/1810:59 amSTS - ORD
1 stop6h 40mAlaska Airlines
Sa 5/258:20 amORD - STS
1 stop8h 29mAlaska Airlines
Deal found 5/13$948
Sa 5/187:00 amSTS - ORD
1 stop9h 29mAlaska Airlines
Sa 5/257:29 pmORD - STS
2 stops17h 47mAlaska Airlines
Deal found 5/13$963

One-way flights to Illinois from Santa Rosa

Search for one-way flight options from Santa Rosa to Illinois. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
Some of the best available deals we've found on one-way flights from Santa Rosa to Illinois. Users in need of a round-trip flight from Santa Rosa to Illinois instead should update the search form at the top of page.
Mo 7/157:45 amSTS - ORD
2 stops25h 44mMultiple Airlines
Deal found 5/11$163
So 7/1411:05 amSTS - ORD
1 stop17h 23mMultiple Airlines
Deal found 5/11$183
Fr 7/127:45 amSTS - ORD
1 stop12h 13mMultiple Airlines
Deal found 5/11$193
Di 7/167:03 pmSTS - ORD
1 stop8h 12mAlaska Airlines
Deal found 5/11$206
Mo 7/157:45 amSTS - ORD
1 stop12h 13mMultiple Airlines
Deal found 5/11$215
So 7/1412:20 pmSTS - ORD
2 stops16h 08mMultiple Airlines
Deal found 5/11$222
Di 7/162:44 pmSTS - ORD
2 stops12h 31mAlaska Airlines
Deal found 5/11$232
Fr 7/127:45 amSTS - ORD
2 stops26h 33mMultiple Airlines
Deal found 5/11$247
So 7/1412:20 pmSTS - ORD
3 stops28h 50mMultiple Airlines
Deal found 5/11$257

Find flights from Santa Rosa to Illinois within your budget

Customize your flight search to find flights from Santa Rosa to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$413 - $608

Route

Depart

Return

Price

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

So 7/28

1 stop17h 23m

Chicago O'Hare Intl

Do 8/1

2 stops23h 50m

$413

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

So 7/28

1 stop17h 23m

Chicago O'Hare Intl

Do 8/1

1 stop9h 09m

$417

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

So 7/28

3 stops29h 39m

Chicago O'Hare Intl

Do 8/1

1 stop9h 09m

$464

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

Do 6/20

1 stop11h 56m

Chicago O'Hare Intl

Sa 6/22

1 stop12h 16m

$483

Santa Rosa Sonoma CountyLambert-St Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Di 8/20

1 stop7h 23m

Lambert-St Louis

Sa 8/24

1 stop9h 33m

$488

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

Do 6/20

2 stops16h 19m

Chicago O'Hare Intl

Sa 6/22

1 stop12h 16m

$526

Santa Rosa Sonoma CountyLambert-St Louis

STS - STL

STSSTL

Santa Rosa Sonoma County

Di 8/20

2 stops24h 35m

Lambert-St Louis

Sa 8/24

1 stop9h 33m

$527

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

Do 7/11

2 stops16h 08m

Chicago O'Hare Intl

So 7/14

3 stops25h 26m

$574

Santa Rosa Sonoma CountyChicago O'Hare Intl

STS - ORD

STSORD

Santa Rosa Sonoma County

Do 7/11

1 stop8h 23m

Chicago O'Hare Intl

So 7/14

1 stop7h 48m

$608

Flights are sorted by cheapest first

Deals found on 5/11

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated Mai 13, 2024.
Read through reviews of airlines operating flights from Santa Rosa to Illinois, such as Alaska Airlines and American Airlines. 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.
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Alaska Airlines
8.1
Very good
9,144 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

American Airlines
7.3
Good
14,608 reviews
Alaska Airlines
8.1
Very good
9,144 reviews
Check prices

Comfort

7.9

Entertainment

7.3

Boarding

8.2

Crew

8.6

Food

7.3

Overall

8.1

Reviews

1 / 10

Paid a lot for our exit row seats and they weren’t that roomy.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa 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 Santa Rosa to Illinois?

    Most people fly from Santa Rosa Sonoma County (STS) if they book a flight from Santa Rosa to Illinois. Santa Rosa Sonoma County is conveniently located just 7.2 mi from Santa Rosa’s city center.

  • Can I find flights from Santa Rosa to Illinois for under $500 on Cheapflights?

    Yes, there are multiple flights from Santa Rosa to Illinois for under $500. The cheapest flight booked recently is on Multiple Airlines for just $413, but on average you can expect to pay $602.

  • Are there last-minute flights available from Santa Rosa to Illinois for under $700?

    There are currently 13+ open flights from Santa Rosa to Illinois within the next 7 days for less than $700.

  • What are the most popular routes from Santa Rosa to Illinois?

    When deciding which route to take from Santa Rosa to Illinois consider Santa Rosa Sonoma County - Chicago O'Hare Intl, Santa Rosa Sonoma County - Moline Quad-City or Santa Rosa Sonoma County - Lambert-St Louis as they are the most popular.

  • What does STS to ORD mean?

    Great question - STS to ORD just means Santa Rosa Sonoma County Airport to Chicago O'Hare Intl Airport. Now you’ll know what these unique codes when you look for flights! Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Springfield Capital Airport (SPI) are other airports near this flight route and their unique identifiers/IATA codes.

  • Can I find deals for flights from Santa Rosa to Illinois that include extra baggage allowance?

    The amount of baggage you can bring on your Santa Rosa to Illinois flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Santa Rosa to Illinois with specific airlines?

    Yes, Cheapflights allows you to browse and filter Santa Rosa to Illinois flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Santa Rosa to Illinois that include hotel bookings?

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

  • How can I find direct flights from Santa Rosa to Illinois?

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

  • Can I find deals for business class flights from Santa Rosa to Illinois?

    Yes. Cheapflights offers flight deals from Santa Rosa 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.

  • Can I find deals for flights from Santa Rosa to Illinois that allow pets onboard?

    Many airlines flying from Santa Rosa to Illinois offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Santa Rosa to Illinois?

    Yes, you can often find last-minute deals on Santa Rosa to Illinois flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Santa Rosa to Illinois flight deals updated?

    The Santa Rosa to Illinois flight deals you see on this page were last updated on 5/13.

See more FAQs

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Alternative routes for Santa Rosa to Illinois
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Top airline flying from Santa Rosa to Illinois

Discover the top airline that operate flights from Santa Rosa to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,633,403 searches. Data last updated Mai 13, 2024.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$376Average$635FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
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Search flights from Santa Rosa to Illinois by cabin class

Find flights from Santa Rosa to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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Business Class
Prem Econ Class
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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Santa Rosa to Illinois?

Deals for Santa Rosa to Illinois flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Santa Rosa to Illinois?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Santa Rosa to Illinois.

Can Cheapflights find flights from Santa Rosa to Illinois with no change fees?

Yes! Cheapflights helps users easily find flights from Santa Rosa to Illinois with no change fees.

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Of course! You can now track prices for flights from Santa Rosa to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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