What is the cheapest airline that flies from San Francisco to Ireland?

Aer Lingus, Air Canada, and British Airways are the most popular carriers operating from San Francisco to Ireland

What airlines fly to Ireland?

Aer Lingus, United Airlines and American Airlines are the top three most popular airlines that fly to Ireland from San Francisco according to our data. Aer Lingus is the first choice among our users, with 81% of people opting to fly with this airline when traveling to Ireland. Keep in mind that there are 15 different airlines that fly to Ireland on a routine basis, so you have a few additional options to choose from.

How many flights depart from San Francisco to Ireland on average per week?

As of December 2025, 16 flights take off from San Francisco and land in Ireland each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.

How many flights depart from San Francisco to Ireland on average per day?

As of December 2025, there are 2 flights per day flying from San Francisco to Ireland. The most common time of day flights depart is 5:00PM, with 100% of flights taking off in the afternoon.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

How often are flights from San Francisco to Ireland delayed?

Historically, on average around 11% of flights between San Francisco and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 163 minutes.

What is the most punctual flight time for San Francisco to Ireland flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

Which airline has the best punctuality record on San Francisco to Ireland flights?

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

When did momondo last update prices for flights from San Francisco Airport to Ireland?

Prices for flights from San Francisco Airport to Ireland are refreshed on a daily basis.

How many operators does momondo search for flights from San Francisco Airport to Ireland?

As of December 2025, there are 15 operators available to choose from for flights from San Francisco Airport to Ireland.

How old do you have to be to fly from San Francisco Airport to Ireland?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Ireland.

What documentation or ID do you need to fly to Ireland?

The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$273 Cheap Flights from San Francisco to Ireland in 2025/26

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4:35 pm - 8:35 pm

SFO

SNN

20h 00m1 stop

9:15 pm - 1:50 pm

SNN

SFO

24h 35m1 stop

$532American Airlines

Tue, May 5 - Thu, May 21

10:19 am - 11:20 am

SFO

SNN

17h 01m2 stops

9:15 pm - 1:50 pm

SNN

SFO

24h 35m1 stop

$536American Airlines

Tue, May 5 - Thu, May 21

7:30 pm - 8:35 pm

SFO

SNN

17h 05m1 stop

9:15 pm - 5:30 pm

SNN

SFO

28h 15m1 stop

$549American Airlines

Tue, May 19 - Tue, Jun 2

4:45 pm - 10:55 am

SFO

DUB

34h 10m2 stops

7:15 pm - 2:40 pm

DUB

SFO

27h 25m2 stops

$587Scandinavian Airlines

Mon, Apr 13 - Sun, Apr 19

4:03 pm - 11:45 am

SFO

DUB

36h 42m2 stops

7:05 pm - 3:35 pm

DUB

SFO

27h 30m1 stop

$588Scandinavian Airlines

Wed, Mar 11 - Mon, Mar 16

1:30 pm - 5:10 pm

SFO

DUB

19h 40m1 stop

9:10 am - 3:55 pm

DUB

SFO

14h 45m1 stop

$591Lufthansa

Wed, Feb 4 - Wed, Feb 11

1:55 pm - 12:55 pm

SFO

ORK

15h 00m1 stop

6:00 am - 11:50 am

ORK

SFO

13h 50m1 stop

$650KLM

Wed, Jan 28 - Fri, Feb 6

10:30 am - 12:55 pm

SFO

ORK

18h 25m2 stops

6:00 am - 11:50 am

ORK

SFO

13h 50m1 stop

$655KLM

Wed, Jan 28 - Fri, Feb 6

8:40 pm - 12:25 pm

SFO

NOC

31h 45m1 stop

1:00 pm - 3:00 pm

NOC

SFO

34h 00m1 stop

$1,070British Airways

Thu, Feb 26 - Mon, Mar 2

6:00 am - 12:25 pm

SFO

NOC

22h 25m2 stops

1:00 pm - 3:00 pm

NOC

SFO

34h 00m1 stop

$1,074British Airways

Thu, Feb 26 - Mon, Mar 2

Scandinavian Airlines flights from San Francisco to Ireland

Our best Scandinavian Airlines deals on San Francisco to Ireland flight tickets

Scandinavian Airlines

Mar 11

SFO4:03 pmSan Francisco

36h 42m

2 stops

DUB11:45 amDublin

Mar 16

DUB7:05 pmDublin

27h 30m

1 stop

SFO3:35 pmSan Francisco

$588

Find similar

Scandinavian Airlines

Mar 19

SFO5:40 pmSan Francisco

32h 30m

2 stops

DUB9:10 amDublin

Mar 30

DUB11:10 amDublin

35h 30m

2 stops

SFO2:40 pmSan Francisco

$594

Find similar

Scandinavian Airlines

Jan 11

SFO7:00 amSan Francisco

20h 45m

2 stops

DUB11:45 amDublin

Jan 18

DUB10:55 amDublin

35h 40m

2 stops

SFO2:35 pmSan Francisco

$600

Find similar

Lufthansa flights from San Francisco to Ireland

Our best Lufthansa deals on San Francisco to Ireland flight tickets

Lufthansa

Feb 4

SFO1:30 pmSan Francisco

19h 40m

1 stop

DUB5:10 pmDublin

Feb 11

DUB9:10 amDublin

14h 45m

1 stop

SFO3:55 pmSan Francisco

$591

Find similar

Lufthansa

Dec 29

SFO6:00 amSan Francisco

18h 10m

1 stop

DUB8:10 amDublin

Jan 14

DUB5:10 amDublin

25h 50m

2 stops

SFO11:00 pmSan Francisco

$634

Find similar

Lufthansa

Feb 4

SFO1:30 pmSan Francisco

19h 40m

1 stop

DUB5:10 pmDublin

Feb 18

DUB5:10 amDublin

18h 45m

1 stop

SFO3:55 pmSan Francisco

$641

Find similar

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 5/5

4:35 pm-8:35 pm

1 stop20h 00m

Shannon

Thu 5/21

9:15 pm-1:50 pm

1 stop24h 35m

$532

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 5/5

10:19 am-11:20 am

2 stops17h 01m

Shannon

Thu 5/21

9:15 pm-1:50 pm

1 stop24h 35m

$536

San FranciscoShannon

SFO - SNN

SFOSNN

San Francisco

Tue 5/19

7:30 pm-8:35 pm

1 stop17h 05m

Shannon

Tue 6/2

9:15 pm-5:30 pm

1 stop28h 15m

$549

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

Mon 4/13

4:45 pm-10:55 am

2 stops34h 10m

Dublin

Sun 4/19

7:15 pm-2:40 pm

2 stops27h 25m

$587

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

Wed 3/11

4:03 pm-11:45 am

2 stops36h 42m

Dublin

Mon 3/16

7:05 pm-3:35 pm

1 stop27h 30m

$588

San FranciscoDublin

SFO - DUB

SFODUB

San Francisco

Wed 2/4

1:30 pm-5:10 pm

1 stop19h 40m

Dublin

Wed 2/11

9:10 am-3:55 pm

1 stop14h 45m

$591

San FranciscoCork

SFO - ORK

SFOORK

San Francisco

Wed 1/28

1:55 pm-12:55 pm

1 stop15h 00m

Cork

Fri 2/6

6:00 am-11:50 am

1 stop13h 50m

$650

San FranciscoCork

SFO - ORK

SFOORK

San Francisco

Wed 1/28

10:30 am-12:55 pm

2 stops18h 25m

Cork

Fri 2/6

6:00 am-11:50 am

1 stop13h 50m

$655

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 2/26

8:40 pm-12:25 pm

1 stop31h 45m

Knock Intl

Mon 3/2

1:00 pm-3:00 pm

1 stop34h 00m

$1,070

San FranciscoKnock

SFO - NOC

SFONOC

San Francisco

Thu 2/26

6:00 am-12:25 pm

2 stops22h 25m

Knock Intl

Mon 3/2

1:00 pm-3:00 pm

1 stop34h 00m

$1,074

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How to get the cheapest flight ticket from San Francisco to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Other information

What is the cheapest month to fly to Ireland?

In general, February is the cheapest month to fly from San Francisco to Ireland. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $596. If you aren’t able to travel to Ireland during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $671.

What is the cheapest day to depart on your flight to Ireland?

The cheapest day to depart on your flight to Ireland is on a Tuesday when prices can be found for as low as $760. This is often the case because there is less demand to fly during this day of the week. Flights from San Francisco to Ireland on a Thursday will generally be more expensive and average around $862. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Ireland?

According to our data, the cheapest time of day to fly to Ireland is in the evening. momondo users have found flights departing from San Francisco to Ireland in the evening for as low as $674. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Ireland is in the morning when prices are around $931.

What is the cheapest San Francisco to Ireland flight route?

Fly from San Francisco to Dublin for the best San Francisco - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from San Francisco when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around $770 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from San Francisco for as low as $673 on momondo.

What cabin class options are available on San Francisco to Ireland flights?

There are 3 cabin classes available to choose from on San Francisco to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap San Francisco to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Ireland

Best Price Found	$415
Fastest flight time	10h 00m
Direct flights	Every day
Airports in Ireland	77 airports

The best one-way flight to Ireland from San Francisco in the past 72 hours is $415. The best round-trip flight deal from San Francisco to Ireland found on momondo in the last 72 hours is $694.

The fastest flight from San Francisco to Ireland takes 10h 00m

Direct flights go from San Francisco to Ireland every day.

There are 77 airports in Ireland. From San Francisco there are direct flights to Dublin (DUB).

Search flight deals

When did momondo last update prices for flights from San Francisco Airport to Ireland?
Prices for flights from San Francisco Airport to Ireland are refreshed on a daily basis.
How many operators does momondo search for flights from San Francisco Airport to Ireland?
As of December 2025, there are 15 operators available to choose from for flights from San Francisco Airport to Ireland.
How old do you have to be to fly from San Francisco Airport to Ireland?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Francisco Airport to Ireland.
What documentation or ID do you need to fly to Ireland?
The travel and health documents required for your trip to Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Francisco to Ireland?
Based on momondo bookings for flights between San Francisco and Ireland, the leading plane model is Airbus A330-300, making up 43.85% of the total bookings. Other popular models include Airbus A330 with 14.66%, Boeing 777 with 12.64%, and Airbus A330-200 with 8.83%.

Best airlines flying from San Francisco to Ireland

Compare and see reviews for airlines that fly from San Francisco to Ireland with momondo

Airline	Rating	Free Cancellation	Price
Scandinavian Airlines	PriceFrom $421	Free Cancellation	Rating 7.4 1,617 reviews	Search Scandinavian Airlines flights
American Airlines	PriceFrom $468	Free Cancellation	Rating 7.2 11,051 reviews	Search American Airlines flights
British Airways	PriceFrom $471	Free Cancellation	Rating 6.7 7,602 reviews	Search British Airways flights
Aer Lingus	PriceFrom $503	Free Cancellation	Rating 7.2 1,408 reviews	Search Aer Lingus flights
SWISS	PriceFrom $506	Free Cancellation	Rating 7.5 1,817 reviews	Search SWISS flights
Air Canada	PriceFrom $510	Free Cancellation	Rating 7.1 10,551 reviews	Search Air Canada flights
TAP AIR PORTUGAL	PriceFrom $517	Free Cancellation	Rating 7.2 2,096 reviews	Search TAP AIR PORTUGAL flights
Delta	PriceFrom $544	Free Cancellation	Rating 7.9 8,014 reviews	Search Delta flights
Lufthansa	PriceFrom $568	Free Cancellation	Rating 6.8 7,643 reviews	Search Lufthansa flights
United Airlines	PriceFrom $571	Free Cancellation	Rating 7.4 9,102 reviews	Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Ireland?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Francisco to Ireland. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from San Francisco to Ireland with flexible booking policies on momondo?

All flight searches from San Francisco to Ireland on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from San Francisco to Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Ireland.

I’m not ready to book a flight from San Francisco to Ireland right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Ireland from San Francisco. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Find better results for your trip to Ireland

Popular cities in Ireland

Flights to Dublinfrom $302

Flights to Shannon, Clarefrom $353

Flights to Corkfrom $391

Flights to Knockfrom $607

Flights to Milltown (Kerry)from $511

Flights to Donegalfrom $775

Cheap flights from San Francisco to Ireland from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Ireland departing on 1/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Scandinavian Airlines flights from San Francisco to Ireland

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How to get the cheapest flight ticket from San Francisco to Ireland

What is the cheapest month to fly to Ireland?

What is the cheapest day to depart on your flight to Ireland?

What is the cheapest time of day to depart on your flight to Ireland?

What is the cheapest San Francisco to Ireland flight route?

Fly from San Francisco to Dublin for the best San Francisco - Ireland flight prices

How far in advance should I book a flight to Ireland?

What cabin class options are available on San Francisco to Ireland flights?

There are 3 cabin classes available to choose from on San Francisco to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

What is the cheapest airline that flies from San Francisco to Ireland?

Aer Lingus, Air Canada, and British Airways are the most popular carriers operating from San Francisco to Ireland

What airlines fly to Ireland?

How often are flights from San Francisco to Ireland delayed?

Historically, on average around 11% of flights between San Francisco and Ireland have experienced a delay on any given week. The average delay length over the past 12 months has been 163 minutes.

What is the most punctual flight time for San Francisco to Ireland flights?

Generally, flights departing in the evening tend to experience fewer delays. Flights in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Wednesday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Francisco to Ireland flights?

According to our data, Aer Lingus have had the least number of delays on this route over the last 12 months; with about 11% of their flights experiencing any sort of delay.

How many flights depart from San Francisco to Ireland on average per day?

As of December 2025, there are 2 flights per day flying from San Francisco to Ireland. The most common time of day flights depart is 5:00PM, with 100% of flights taking off in the afternoon.

How many flights depart from San Francisco to Ireland on average per week?

As of December 2025, 16 flights take off from San Francisco and land in Ireland each week. The most common flight departure day for this route is Mon, with 25% of weekly flights taking off on this day.

Cheap San Francisco to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Ireland

Best Price Found

Fastest flight time

Direct flights

Airports in Ireland

When did momondo last update prices for flights from San Francisco Airport to Ireland?

How many operators does momondo search for flights from San Francisco Airport to Ireland?

How old do you have to be to fly from San Francisco Airport to Ireland?

What documentation or ID do you need to fly to Ireland?

What is the most popular plane model from San Francisco to Ireland?

Best airlines flying from San Francisco to Ireland

Compare and see reviews for airlines that fly from San Francisco to Ireland with momondo

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Ireland?

Can I find flights from San Francisco to Ireland with flexible booking policies on momondo?

How can momondo help me find flights from San Francisco to Ireland?

I’m not ready to book a flight from San Francisco to Ireland right now. Can momondo alert me if prices change?

An easier way to manage your Ireland trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Ireland

Popular cities in Ireland

Popular flights according to clicks in the last 7 days on momondo