HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ireland

$414+ Cheap flights from Santa Rosa (STS) to Ireland

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.
STS — DUB
feb. 17 — feb. 241
mar. 2/17
mar. 2/24
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Santa Rosa to Ireland with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Santa Rosa to Ireland

Keep the following information in mind while searching for Santa Rosa to Ireland flight deals. Data was last updated enero 18, 2026.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$583
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$682
Provider with most accurate pricing for San Francisco-Dublin flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Francisco-Dublin flights.
Search Deals
From Santa Rosa Sonoma County to Ireland
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($160 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Santa Rosa to Ireland

Cheapest flights from Santa Rosa to Ireland
Explore the most affordable flight options available from Santa Rosa to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on enero 18, 2026.

This American Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/41:03 pm
STS
-
DUB
2 stops17h 27m
Multiple Airlines
mié. 3/118:50 am
DUB
-
STS
2 stops20h 02m
Multiple Airlines
Deal found 1/18$583
This American Airlines deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/194:23 pm
STS
-
DUB
2 stops18h 22m
Multiple Airlines
lun. 3/238:50 am
DUB
-
STS
2 stops21h 25m
Multiple Airlines
Deal found 1/17$669
This American Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/211:05 pm
STS
-
DUB
2 stops21h 45m
American Airlines
mar. 8/47:50 pm
DUB
-
STS
2 stops27h 56m
American Airlines
Deal found 1/16$755
This American Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 7/204:26 pm
STS
-
DUB
2 stops40h 39m
American Airlines
mar. 8/47:50 pm
DUB
-
STS
2 stops23h 46m
American Airlines
Deal found 1/16$761
This American Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/211:05 pm
STS
-
DUB
2 stops20h 00m
American Airlines
dom. 8/27:50 pm
DUB
-
STS
2 stops28h 03m
American Airlines
Deal found 1/16$815
This Iberia deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/233:05 pm
STS
-
DUB
2 stops18h 25m
Multiple Airlines
jue. 10/13:25 pm
DUB
-
STS
1 stop16h 20m
Multiple Airlines
Deal found 1/16$816

Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa to Ireland 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 2,558,603 searches. Data last updated enero 18, 2026.
Use the filters below to find and compare flights from Santa Rosa to Ireland that are best for you.

Fly from

Santa Rosa

Fly to

Ireland

Route

Depart

Return

Price

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

mié. 3/4

1:03 pm-2:30 pm

2 stops17h 27m

Dublin

mié. 3/11

8:50 am-9:52 pm

2 stops20h 02m

$583

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

jue. 3/19

4:23 pm-5:45 pm

2 stops18h 22m

Dublin

lun. 3/23

8:50 am-11:15 pm

2 stops21h 25m

$669

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

sáb. 4/11

7:05 am-2:30 pm

1 stop23h 25m

Dublin

dom. 4/19

3:25 pm-11:59 pm

1 stop16h 34m

$928

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

jue. 4/2

12:10 pm-7:20 pm

2 stops23h 10m

Dublin

jue. 4/9

9:45 am-11:59 pm

2 stops22h 14m

$944

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

dom. 7/12

10:57 am-2:30 pm

2 stops19h 33m

Dublin

jue. 7/16

8:35 am-8:17 pm

2 stops19h 42m

$1,708

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

mié. 7/15

10:57 am-7:30 pm

2 stops24h 33m

$414

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Best time to book a flight from Santa Rosa to Ireland

Have a flexible travel schedule? Discover the best time to fly to Ireland from Santa Rosa with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Santa Rosa to Ireland

What is the cheapest month to book a flight from Santa Rosa to Ireland?

Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Ireland (average of $455). Flying from Santa Rosa to Ireland in June is currently the most expensive (average of $716). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

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

    Located just 7.2 mi from the city center, Santa Rosa Sonoma County (STS) is the airport most travelers will use when flying to Ireland from Santa Rosa.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Santa Rosa to Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Santa Rosa to Ireland?

    Currently, August is the cheapest month in which you can book a flight from Santa Rosa to Ireland (average of $455). Flying from Santa Rosa to Ireland in June is currently the most expensive (average of $716). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Santa Rosa to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
San Francisco to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Los Angeles to Istanbul flights
Los Angeles to Barcelona-El Prat flights
Los Angeles to Gatwick flights
Los Angeles to Dublin flights
San Francisco to Dublin flights
San Francisco to Barcelona-El Prat flights
Los Angeles to London City flights
San Francisco to Gatwick flights
Los Angeles to Madrid flights
San Francisco to Lisbon flights
Los Angeles to Orly flights
Los Angeles to Stansted flights
Los Angeles to Frankfurt flights
San Francisco to Madrid flights
San Francisco to London City flights
Los Angeles to Amsterdam flights
San Francisco to Istanbul flights
San Diego to Heathrow flights
San Francisco to Orly flights
San Francisco to Amsterdam flights
Los Angeles to Lisbon flights
San Francisco to Stansted flights
Los Angeles to Athens flights
Ontario to Leonardo da Vinci/Fiumicino flights
San Francisco to Zurich flights
Ontario to Heathrow flights
San Francisco to Athens flights
Las Vegas to Heathrow flights
San Francisco to Frankfurt flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
Los Angeles to Malpensa flights
Ontario to Charles de Gaulle flights
Santa Ana to Charles de Gaulle flights
San Francisco to Malpensa flights
Los Angeles to Zurich flights
Los Angeles to Copenhagen flights
San Jose to Charles de Gaulle flights
Los Angeles to Linate flights
San Francisco to Copenhagen flights
Los Angeles to Luton flights
Los Angeles to Beauvais-Tille flights
San Francisco to Linate flights
San Jose to Barcelona-El Prat flights
San Francisco to Munich flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.