$171 Cheap Flights from Newark Liberty Intl. Airport (EWR) to Santa Rosa (STS)

View $171 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Newark Liberty Intl. Airport (EWR) to Santa Rosa, CA (STS-Sonoma County)

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Cheap Flights from Newark Liberty Intl. Airport to Santa Rosa (EWR-STS)

Prices were available within the past 7 days and start at $171 for one-way flights and $338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Nov 18 - Sat, Dec 6
EWR
New York
STS
Santa Rosa
$338 Roundtrip, found 6 days ago
$338
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from New York to Santa Rosa, returning Sat, Dec 6, priced at $338 found 6 days ago
Hawaiian Airlines
Thu, Dec 4 - Sat, Dec 6
EWR
New York
STS
Santa Rosa
$342 Roundtrip, found 3 days ago
$342
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, Dec 4 from New York to Santa Rosa, returning Sat, Dec 6, priced at $342 found 3 days ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
EWR
New York
STS
Santa Rosa
$343 Roundtrip, found 6 days ago
$343
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from New York to Santa Rosa, returning Sat, Dec 13, priced at $343 found 6 days ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
EWR
New York
STS
Santa Rosa
$344 Roundtrip, found 6 days ago
$344
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Dec 6 from New York to Santa Rosa, returning Sat, Dec 13, priced at $344 found 6 days ago
Hawaiian Airlines
Fri, Feb 20 - Tue, Mar 10
EWR
New York
STS
Santa Rosa
$347 Roundtrip, found 3 days ago
$347
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Feb 20 from New York to Santa Rosa, returning Tue, Mar 10, priced at $347 found 3 days ago
Hawaiian Airlines
Fri, Dec 5 - Sat, Dec 6
EWR
New York
STS
Santa Rosa
$352 Roundtrip, found 3 days ago
$352
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 5 from New York to Santa Rosa, returning Sat, Dec 6, priced at $352 found 3 days ago
Hawaiian Airlines
Wed, Dec 3 - Wed, Dec 17
EWR
New York
STS
Santa Rosa
$357 Roundtrip, found 2 days ago
$357
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 3 from New York to Santa Rosa, returning Wed, Dec 17, priced at $357 found 2 days ago
Alaska Airlines
Mon, Nov 17 - Sat, Dec 6
EWR
New York
STS
Santa Rosa
$358 Roundtrip, found 6 days ago
$358
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Nov 17 from New York to Santa Rosa, returning Sat, Dec 6, priced at $358 found 6 days ago
Hawaiian Airlines
Fri, Dec 5 - Sun, Dec 7
EWR
New York
STS
Santa Rosa
$362 Roundtrip, found 3 days ago
$362
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 5 from New York to Santa Rosa, returning Sun, Dec 7, priced at $362 found 3 days ago
American Airlines
Sat, Jan 10 - Wed, Jan 14
EWR
New York
STS
Santa Rosa
$549 Roundtrip, found 4 days ago
$549
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Jan 10 from New York to Santa Rosa, returning Wed, Jan 14, priced at $549 found 4 days ago

Find the cheapest month to fly from New York (EWR) to Santa Rosa (STS)

September is typically the cheapest month to fly

From $326 - $625 per traveler.
Flights from Newark Liberty Intl. Airport (EWR) to Santa Rosa (STS)
Origin airport
Newark Liberty Intl. Airport
Destination airport
Sonoma County
Airlines serving
Alaska Airlines, American Airlines, Hawaiian Airlines
Roundtrip price
$338
Distance
2559 mi

Newark Liberty Intl. Airport to Santa Rosa Flights

The cheapest times to fly from Newark Liberty Intl. Airport to Santa Rosa

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Newark Liberty Intl. Airport to Santa Rosa are during the month of November. You can find some of the cheapest flights from Newark Liberty Intl. Airport to Santa Rosa with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Newark Liberty Intl. Airport to Santa Rosa

Sunday is one of the best days to book for cheap flights from Newark Liberty Intl. Airport to Santa Rosa: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Newark Liberty Intl. Airport to Santa Rosa

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Newark Liberty Intl. Airport to Santa Rosa in 2025. You can also book with separate airlines for your outbound and return journeys, from $171 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Newark Liberty Intl. Airport to Santa Rosa flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Newark Liberty Intl. Airport to Santa Rosa airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS) cost?
Lock in a cheap one-way flight from $171 or cheap return flight from $338 from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS)?
November is the least expensive month to fly from EWR to STS. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS)?
To find the cheapest airline flying from EWR to STS, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS)?
Nonstop flights from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from EWR to STS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Remember that flight schedules can change depending on various factors, such as the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS)?
Select a flight from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS) that takes off before 3 PM to reduce the risk of cancellations and delays. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Santa Rosa from Liberty Intl. Airport (EWR)?
If you're taking a direct flight from Liberty Intl. Airport (EWR) to Santa Rosa, San Francisco Intl. Airport (SFO) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS) last-minute?
Last-minute fares from EWR to STS are generally more expensive. To secure the cheapest rates, start searching for flights early. That being said, if you can play around with your travel dates, it's possible to score a cheap fare just before your departure.
Is it cheaper to book an EWR to STS flight and hotel package?
Opting for an EWR to STS flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your trip all in one place. Pick from our extensive range of stays and then add car rentals, flights and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Liberty Intl. Airport (EWR) to Sonoma County Airport (STS)?
Typically, you're able to reschedule or cancel your EWR to STS flight. However, additional charges may apply, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and rules on flight changes, or if you need more details, head to our Customer Service portal.

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*Available to One Key members.