SFO

£290 Find Cheap Flights from Belfast to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to San Francisco departing on 8/12. 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

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

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Belfast to San Francisco, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Belfast to San Francisco

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Belfast to San Francisco 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 from Belfast to San Francisco

Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
06:35 - 15:00BHD-SFO
16h 25m1 stop
American Airlines Logo
09:32 - 10:40SFO-BHD
18h 08m2 stops
£470American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
11:05 - 18:45BHD-SFO
15h 40m1 stop
American Airlines Logo
10:37 - 10:40SFO-BHD
17h 03m2 stops
£471American Airlines
Find Deal
Thu, 5 Mar - Mon, 9 Mar
American Airlines Logo
11:05 - 22:18BHD-SFO
19h 13m2 stops
American Airlines Logo
08:13 - 10:40SFO-BHD
19h 27m2 stops
£475American Airlines
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Delta Logo
06:30 - 17:45BHD-SFO
19h 15m2 stops
Delta Logo
13:45 - 21:15SFO-BHD
23h 30m2 stops
£478Delta
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Delta Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Delta Logo
13:45 - 16:55SFO-BHD
19h 10m2 stops
£496Delta
Find Deal
Thu, 9 Oct - Thu, 16 Oct
British Airways Logo
06:35 - 13:50BHD-SFO
15h 15m1 stop
British Airways Logo
16:30 - 15:30SFO-BHD
15h 00m1 stop
£516British Airways
Find Deal

Everything you should know

Top airlines
American Airlines
Cheapest • from £470 (return)
American Airlines
Best reviews • 7.2 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest return fare
£470
American Airlines
Thu 5/3Mon 9/3
BHD - SFO • 1 stop
Cheapest one-way flight
£290
Multi-carrier
Mon 8/12
BFS - SFO • 3 stops
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KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Booking Insights

KAYAK's insights & trends for Belfast to San Francisco flights

Get data-powered insights and trends into flights from Belfast to San Francisco to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Belfast to San Francisco?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest return tickets from Belfast to San Francisco were found on American Airlines (£470) and Delta (£478).

Good to know - Cheap tickets from Belfast to San Francisco

Cheapest flight£290
Flight from Belfast Intl Airport to San Francisco

When to book flights from Belfast to San Francisco

Are your dates flexible? Find out the best times to travel from Belfast to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Belfast to San Francisco

  • What is the cheapest flight from Belfast to San Francisco?

    In the last 3 days, the lowest price for a flight from Belfast to San Francisco was £393 for a one-way ticket and £638 for a return.

  • Which airports will I be using when flying from Belfast to San Francisco?

    There are 2 airports in Belfast (Belfast Intl and Belfast City.) and only 1 airport in San Francisco (San Francisco). The cheapest flights are generally found on the Belfast City Airport to San Francisco flight route.

  • Which aircraft models fly most regularly from Belfast to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Belfast to San Francisco?

    oneworld, and SkyTeam are the airline alliances operating flights between Belfast and San Francisco, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Belfast to San Francisco?

    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 Belfast to San Francisco.

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

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

  • What is the Hacker Fare option on flights from Belfast to San Francisco?

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

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

    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 to San Francisco from Belfast up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Belfast to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Belfast to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. 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 Belfast to San Francisco? 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.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
6.9Entertainment
7.5Boarding
8.0Crew
6.4Food
Airline reviews

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

10.0 ExcellentEnchantress, Sept 2025JFK - SFO
Read more American Airlines reviews

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

The stewardess hit me with the food kart twice on the head and didn't say I'm sorry once. The same stewardess gave me a warm Apple Juice with No ice. The Flight was delayed for Departure 6 times, starting from 2:36pm, finally taking off 7:50pm. I was late picking up my child from the sitter by 3 hours.

Did not get the seat I selected and paid for.

My flight was delayed for several hours. Sitting at gate 16 for several hours, I got a text from Kayak the gate changed to 9 before it was announced. Very bad communication at each gate from American Airlines employees. I received 10 notifications of delay from Kayak. My vacation started off horrible! I will write to American Airlines corporate office also.

Delayed flight that lead to a missed connection and a 5-hour trip became a 12-hour flight 🙄

There is no room, no gluten free options, or any free internet/entertainment. You have to bring your own tablet or smartphone because there are no screens.

American Airlines is a mediocre airlines: they do not maintain the highest standard of cleanliness in the cabins, and the food is not well thought out. Service is not at top of mind compared to other international airlines such as Singapore Airlines, JAL or others.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

I flew Business Class. Rory, one of the Cabin stewards, was attentive, explained the menu, provided appropriate drinks. was

what would have been better would have been that my booking not been canceled by the system and had I been informed that the booking had been cancelled by the system I could have immediately rebooked and not found out that there was an issue when I was told by the system that I needed to book in. It would have also been good if either the booking agent or BA or anyone been in anyway useful. In the end I had to rebook a flight at an additional cost of $350. So no I'm not impressed by BA any of the other parties involved.

Boarding was poor. Why are first class passengers not boarded first?! Bus to the plane and then held on a packed bus because we were waiting for people on the bus before to finish boarding. Seat belt on the fist clas seat is very uncomfortable, cutting into your neck. Other than that crew, seating and food were all excellent. Entertainment, as usual - rubbish.

Flight was delayed but my previous flight was as well so It worked to my advantage. This was my first time in first class. I don't think they ever stopped feeding us. The seating area was very spacious and comfortable. The attendants were wonderful, warm, friendly and very personable.

Flight was excellent, staff was great. My first time in first class and it was very relaxing and comfortable.

We had a pretty good experience. Enjoyed both the flights. Crew was very good and helpful.

They issued seat assignments and sat my 2 year-old in the row behind me, separate from me and my daughter. Communication/ customer service was terrible. They told me to change it in London, then in London, they told me to talk to the cabin crew, then a supervisor came and stuck us in the back of the plane when we were supposed to be in row 25. Overall, they need to really work on their customer service. Additionally the food was terrible and they ran out of meals and didn’t have any kid options. To top it off there was no in-flight entertainment for the first hour of the trip.

We missed the connection because we had to wait for a shuttle from the plane to the Terminal. Also, we needed assistance and none was available.

When we arrived at the airport - 1st step - printing out your boarding pass - no issue. Not long lines as these machines. 2nd step - processing your bag drop off. There was only one associate there to help 10 kiosks. We had a family in front of us for 20 minutes trying to work on the machine and figure out every step for 4 pieces of luggage. My husband alerted the associate who was able to assist the family. Highly suggest that there are more associates to assist in this process. Besides this issue, security check went very quickly. Our flight was direct to Philadelphia. We had to carry our bags down two flights of steps, then out to the tarmac to a bus, then carry our bags up two flights of stairs to the plane. No one on the flight was expecting that long trek. I could see some people were struggling a bit. All in all - great flight crew, plane was clean and food was great!

There were no gluten-free vegan options available, so food was very limited on this flight, and some of the crew weren’t especially helpful about it. To make matters worse, a passenger was sick on board, and although the area was cleaned, the smell lingered for the rest of the journey. On top of that, we ended up circling for an extra hour, which only made the unpleasant situation drag on even longer.

Checking in prior on line and wait time at Gatwick was terrible. I would rate a big fat ZERO.

Everything you need to know for your flight from Belfast to San Francisco

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