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$349+ 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 1/17. Fares are subject to change and may not be available on all flights or dates of travel.
STS — DUB
Feb 7 — Feb 141
Sat 2/7
Sat 2/14
1 adult, Economy
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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 January 8, 2026.

Most accurate provider

OneTravel
3 stars

Most trusted provider

OneTravel
3 stars

Round-trip from

$635
(American Airlines)

One-way from

$349
(American Airlines)

Popular in

June

Cheapest in

February

Average price

$682
Provider with most accurate pricing for San Francisco-Dublin flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Dublin flights.
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From Santa Rosa Sonoma County to Ireland
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One-way flight from Santa Rosa Sonoma County to Ireland
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Highest demand for flights based on searches. 17% potential increase in price ($160 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 8, 2026.

This American Airlines deal was found by Cheapflights users on 1/8. 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.
Wed 3/41:03 pmSTS - DUB
2 stops17h 27mMultiple Airlines
Mon 3/910:45 amDUB - STS
2 stops20h 05mMultiple Airlines
Deal found 1/8$635
This American Airlines deal was found by Cheapflights users on 1/8. 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.
Sun 2/221:03 pmSTS - DUB
2 stops20h 42mMultiple Airlines
Sun 3/111:30 amDUB - STS
2 stops19h 39mMultiple Airlines
Deal found 1/8$707
This American Airlines deal was found by Cheapflights users on 1/7. 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.
Sun 7/261:05 pmSTS - DUB
2 stops17h 45mAmerican Airlines
Fri 8/74:45 pmDUB - STS
2 stops27h 50mAmerican Airlines
Deal found 1/7$755
This American Airlines deal was found by Cheapflights users on 1/6. 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.
Sat 2/211:03 pmSTS - DUB
2 stops20h 37mAmerican Airlines
Sat 2/284:40 pmDUB - STS
2 stops27h 53mAmerican Airlines
Deal found 1/6$757
This Finnair deal was found by Cheapflights users on 1/7. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:05 pmSTS - DUB
2 stops18h 15mFinnair
Tue 11/109:45 amDUB - STS
2 stops22h 00mFinnair
Deal found 1/7$797
This Iberia deal was found by Cheapflights users on 1/8. 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.
Tue 7/2110:57 amSTS - DUB
2 stops22h 08mMultiple Airlines
Thu 8/68:35 amDUB - STS
2 stops19h 42mMultiple Airlines
Deal found 1/8$889
This Aer Lingus deal was found by Cheapflights users on 1/6. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/47:00 amSTS - DUB
1 stop23h 30mMultiple Airlines
Sun 2/153:20 pmDUB - STS
1 stop16h 37mMultiple Airlines
Deal found 1/6$920
This Aer Lingus deal was found by Cheapflights users on 1/8. 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 Aer Lingus is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:00 amSTS - DUB
1 stop23h 30mMultiple Airlines
Sun 10/183:25 pmDUB - STS
1 stop16h 20mMultiple Airlines
Deal found 1/8$985

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 January 8, 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

Wed 3/4

1:03 pm-2:30 pm

2 stops17h 27m

Dublin

Mon 3/9

10:45 am-11:50 pm

2 stops20h 05m

$635

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Sun 2/22

1:03 pm-5:45 pm

2 stops20h 42m

Dublin

Sun 3/1

11:30 am-11:09 pm

2 stops19h 39m

$707

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Sat 2/21

1:03 pm-5:40 pm

2 stops20h 37m

Dublin

Sat 2/28

4:40 pm-12:33 pm

2 stops27h 53m

$757

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Wed 2/4

7:00 am-2:30 pm

1 stop23h 30m

Dublin

Sun 2/15

3:20 pm-11:57 pm

1 stop16h 37m

$920

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Fri 6/12

1:05 pm-5:15 pm

2 stops20h 10m

Dublin

Fri 6/19

11:00 am-12:35 pm

2 stops33h 35m

$1,043

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Sat 2/21

11:07 am-1:20 pm

1 stop18h 13m

Dublin

Sat 2/28

12:05 pm-10:11 am

2 stops30h 06m

$1,046

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Sat 6/13

4:26 pm-7:25 pm

2 stops18h 59m

Dublin

Fri 6/19

12:45 pm-12:35 pm

2 stops31h 50m

$1,180

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Fri 6/5

8:20 am-2:30 pm

2 stops22h 10m

Dublin

Thu 6/11

6:20 am-8:17 pm

2 stops21h 57m

$1,220

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Sat 1/17

4:23 pm-10:20 am

2 stops33h 57m

$349

Santa RosaDublin

STS - DUB

STSDUB

Santa Rosa Sonoma County

Thu 1/15

4:23 pm-10:20 am

2 stops33h 57m

$399

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/7

Showing 1-10 of 12 results
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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.

  • How long is the flight from Santa Rosa to Ireland?

    Airlines like American Airlines fly from Santa Rosa to Ireland in about 20h 37m. The time it takes to get you to your destination can typically vary by up to . The distance from Santa Rosa to Ireland is about 5044 mi.

  • 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

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