€265 Find Cheap Flights to San Francisco Bay Area

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ireland to San Francisco Bay Area departing on 1/3. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco Bay Area

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco Bay Area
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco Bay Area
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Flight Deals

Best San Francisco Bay Area Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
San Francisco
San Franciscodirect€449
San Jose
San Jose2 stops€442
San Francisco
San Franciscodirect€449
San Jose
San Jose2 stops€442

Book Cheap San Francisco Bay Area Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights to San Francisco Bay Area that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to San Francisco Bay Area

Fri, 23 Jan - Fri, 6 Feb
Multiple Airlines Logo
08:50 - 21:29
DUB
-
SJC
20h 39m
2 stops
Multiple Airlines Logo
08:00 - 14:20
SJC
-
DUB
22h 20m
2 stops
€442Multiple Airlines
Wed, 11 Feb - Fri, 20 Feb
British Airways Logo
13:10 - 22:31
DUB
-
SJC
41h 21m
2 stops
British Airways Logo
06:00 - 14:20
SJC
-
DUB
24h 20m
2 stops
€444British Airways
Mon, 2 Feb - Sun, 15 Feb
Aer Lingus Logo
12:30 - 15:35
DUB
-
SFO
11h 05mdirect
Aer Lingus Logo
18:20 - 12:25
SFO
-
DUB
10h 05mdirect
€449Aer Lingus
Wed, 11 Feb - Fri, 20 Feb
Multiple Airlines Logo
09:40 - 10:11
DUB
-
SJC
32h 31m
2 stops
Multiple Airlines Logo
06:00 - 12:05
SJC
-
DUB
22h 05m
2 stops
€450Multiple Airlines
Sun, 22 Feb - Sat, 7 Mar
American Airlines Logo
11:30 - 15:50
DUB
-
SJC
36h 20m
2 stops
American Airlines Logo
11:01 - 08:40
SJC
-
DUB
37h 39m
2 stops
€455American Airlines
Mon, 2 Feb - Sun, 15 Feb
American Airlines Logo
11:30 - 22:28
DUB
-
SFO
18h 58m
2 stops
American Airlines Logo
06:21 - 08:40
SFO
-
DUB
18h 19m
1 stop
€455American Airlines
Wed, 4 Feb - Wed, 18 Feb
Delta Logo
05:55 - 11:50
DUB
-
SFO
13h 55m
1 stop
Delta Logo
15:40 - 15:45
SFO
-
DUB
16h 05m
1 stop
€455Delta
Thu, 22 Jan - Fri, 6 Feb
Delta Logo
05:55 - 11:50
DUB
-
SFO
13h 55m
1 stop
Delta Logo
09:00 - 08:45
SFO
-
DUB
15h 45m
1 stop
€458Delta
Thu, 26 Feb - Thu, 5 Mar
KLM Logo
17:15 - 11:50
ORK
-
SFO
26h 35m
1 stop
KLM Logo
15:40 - 14:45
SFO
-
ORK
15h 05m
1 stop
€460KLM
Tue, 31 Mar - Tue, 14 Apr
KLM Logo
13:25 - 11:45
DUB
-
SFO
30h 20m
1 stop
KLM Logo
13:45 - 12:40
SFO
-
DUB
14h 55m
1 stop
€463KLM
Booking Insights

KAYAK's insights & trends for flights to San Francisco Bay Area

Get data-powered insights and trends for flights to San Francisco Bay Area to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest flight to San Francisco Bay Area?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to San Francisco Bay Area from Ireland found in the last 72 hours was to San Francisco, at €512 return. The most popular route is Dublin (DUB) to San Francisco (SFO) and the cheapest return airline ticket found on this route in the last 72 hours was €512.

What is the cheapest month to fly from Ireland to San Francisco Bay Area?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland to San Francisco Bay Area, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Ireland to San Francisco Bay Area is November, when tickets cost €491 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is €782 and €749 respectively.

How far in advance should I book a flight from Ireland to San Francisco Bay Area?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Francisco Bay Area, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from Ireland to San Francisco Bay Area, you should book around 2 weeks before departure, which saves you about 19% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Which is the cheapest airport to fly into in San Francisco Bay Area?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in San Francisco Bay Area is San Francisco Airport (SFO), with an average flight price of €663.

Good to know

Low seasonJanuary
Cheapest flight€265
Best time to beat the crowds (11% less expensive on average)
Most popular time to fly (30% more expensive on average)
Flight from Dublin to San Francisco

Flights to San Francisco Bay Area: the best tips from KAYAK users' own experiences

Insights shared by verified travellers who flew to San Francisco Bay Area 
MichelleFlew with Aer Lingus
DUB
-
SFO
May 2025
Make sure you arrive well ahead of the flight. We were lucky that security lines were pretty short but they could be very long and you do US customs and security in Dublin.
NinaFlew with Aer Lingus
DUB
-
SFO
Nov 2024
Make sure you include extra time to pass through US Border Control if you’re flying to the US! Also Aer Lingus bag drop closes 75 mins before flight departure for long haul so bear that in mind!

FAQs - booking San Francisco Bay Area flights

  • How does KAYAK find such low prices on flights from Ireland to San Francisco Bay Area?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ireland to San Francisco Bay Area.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ireland to San Francisco Bay Area?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to San Francisco Bay Area is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ireland to San Francisco Bay Area?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ireland to San Francisco Bay Area with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ireland to San Francisco Bay Area?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Ireland to San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to San Francisco Bay Area?

    Based on KAYAK data, the cheapest day to fly to San Francisco Bay Area is Saturday when return tickets can be as cheap as €534. On the other hand, the most expensive day to fly is Tuesday, when return prices are €729 on average.

  • What is the cheapest time of day to fly to San Francisco Bay Area?

    The cheapest time of day to fly to San Francisco Bay Area is generally in the morning, when retur flights cost €623 on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the afternoon, which is peak travel time and where the average cost of a ticket is €637.

Top tips for finding cheap flights to San Francisco Bay Area

  • Looking for cheap airfare to San Francisco Bay Area? 25% of our users found return tickets to San Francisco Bay Area for the following prices or less: From Dublin €441
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco Bay Area flight deals.

Reviews of the top 5 airlines flying to San Francisco Bay Area

 
See real verified KAYAK customer reviews for airlines flying to San Francisco Bay Area. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Ireland to San Francisco Bay Area. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ireland to San Francisco Bay Area? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9144 reviews
6.6Food
7.3Comfort
7.7Boarding
7.1Entertainment
8.1Crew
Airline reviews

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

4.0 OkayTobin, Jan 2026
CUN - LAX
Read more United Airlines reviews

Flight was delayed 45 minutes because originating flight was coming from Newark. No complimentary snacks were offered on this 5+ hour flight. No screens for the flight, but movies offered if you had already downloaded the United app (which I hadn't on my ipad). No USB ports, only a flimsy plug-in port near the bottom of the seat that was hard to see and kept coming unplugged.

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Flight was late - I was downgraded from first class to coach

Movie selection is good. Crew did not understand mileage program and were no help. Sick later. Food?

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

The flight attendants were very rude, beyond comprehension. I took a business class from London to SFO for the first time on United. When I asked for a second piece of bread during dinner, the serving attendant threw a 3rd bread on my plate and said, “here. You can have this one too”! I couldn’t believe the rudeness of the attendant. Most all attendants were very rude, unhelpful, sing the food was absolutely disgusting. Never fly United internationally in business class. My flight back to SFO was a nightmare!!

Plane boarded early a quickly, was mostly full. We left close to on time. And landed early.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

The experience with American Airlines was good, although the Philippines Airlines flight was much better (better seats, better food, better entertainment options, overall better). Again, the MIA to LAX flight was fine, but nothing in comparison to the comfort and accommodations of the Philippines Airlines flight from LAX to MNL.

Loved the crew . Absolutely no complaints. Except for luggage lost

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

We are too tired and frustrated to comment politely at this point

The business class seats are dated and uncomfortable. The space is bare minimum and there is absolutely no privacy. For $4K, this is not what I expect.

The flight crew was rude. We were in first class and no one even offered water until an hour after we were in the air. Horrible experience

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

So, the trip from Dublin to LA did not really happen because the flight took off before we could finish the transfer.

Very nice experience. Flight had good entertainment system and good food options. Customer service was very friendly and nice as well.

Like - the crew were nice Dislike - sitting on the tarmac for long periods after boarding and landing.

I was not admitted to the flight!!! i need a refund for this.

It’s my new favourite airline! Everything was smooth and relaxed!

One of the best flights I've been on in a while. Very genuinely friendly staff. Courteous, kind, respectful. On a past flight (not Aer Lingus) I remember being woken up rudely to put my seat forward. Like a child being berated for something. Oddly jarring experience when someone could just tap you gently on the shoulder and gesture kindly. But I noticed the Aer Lingus staff were incredibly patient with everyone on the plane. It's the holiday season and I noticed a lot more elderly customers on the plane than I typically see flying, and the staff went above and beyond with helping accommodate people. Service throughout the flight was flawless. They came through offering water, and picking up garbage at perfect intervals. Seemed like this flight, everyone was on point. And the flight landed early on top of that

Seats are small, but comfortable and more space around you, so for a normal person the seats are perfect. If you are a big and fat individual, I would not think the seats are comfortable. All else was good and normal. Lots of movies to watch.

Customer service was excellent! The app was terrible, tried several times to check in without success! But the young lady that checked us in was absolutely terrific and helpful.

The same as I stated prior. We incurred extra costs that should be reimbursed, given we were not communicated with about schedule changes.

Experience was great overall. However, the connection time between my flights (1hr 15 mins) was too short. We had to get through security check and US immigration in that time, and I made it to the gate just as they were announcing it was about to close. Flights with such a short connection time should maybe not be offered for purchase, or an advance alert would be helpful. Other than that the in-flight experience was excellent, especially the food. Many thanks!

They are very proactive and made our boarding easy and always notified us about any changes well in advance.

The staff was great and made the long trip easy peasy!

The free Wi-fi for Aeroplan members was a great touch. The time passed quickly. I found the seats seemed a little closer together than I remember. Not Air Canada's fault, but we were about 20 minutes late landing because the airport was too busy. We had to circle around for a while. The boarding and disembarking went very smoothly.

Great flight. Only complaint is it took over an hour for my luggage to get to the carousel on the return to LAX That was irritating

I knew I was going to fall asleep unsettlingly from exhaustion so I warned the guy next to me in advance. The attendant took to checking on me frequently and even insisted I take my snack because I said no while sleep hazed and then absolutely wanted it about 5 minutes later. He was So caring and kind to my situation!!

The flight was very smooth and good. Boarding was fast, but the staff was just decently friendly.

I liked the behaviour of the crew members.The flight was good.

No food to provide, they forgot that, in some cases, people stay at the airport for hours without food. Now, to provide them with food, they have to ask them to pay, because some don't have money. That way, they can't eat.

Flight was cancelled last minute. Had to scramble and purchase a $2000 flight through a separate airlines. Stuck in Toronto two extra days. Missed my first two days on a new job. Had to rent a car for an additional two days. Scrambled to fins a place to live those extra two days. Spent a ton of extra money and lost a lot of money, as well as made a poor impression at work. Difficult difficult difficult

Terrible, return flight was cancelled a night before the flight was scheduled to depart and I was notified by an email and an automated message on their phone line. I’ll never book Air Canada again

The flight crew was kind, flexible, and accommodating. The seats on the plane were extremely uncomfortable.

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

Plane was extremely delayed, but not all of it was BA fault (some was). Worst part was lack of room - this had as much space as an Allegiant flight. I thought transatlantic usually gave you an extra inch or two, but not this one. Entertainment system sporadically worked and didn’t have great options. Overhead bins are old and tiny, not as good as aunties new planes.

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

Everything you need to know for your flight to San Francisco Bay Area

Cabin class types available on flights to San Francisco Bay Area

Cabin classes available on flights to San Francisco Bay Area. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.