£530 Find Cheap Flights from Belfast to San Francisco Bay Area

This is the cheapest return flight price found by a KAYAK user in the last 72 hours by searching for a flight from Belfast to San Francisco Bay Area departing on 20/9. 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 Bay Area

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

Cheapest return prices found by our users on KAYAK in the last 72 hours
San Francisco
San Francisco1 stop£530
San Francisco
San Francisco1 stop£530

Book Cheap Belfast to 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 from Belfast 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 from Belfast to San Francisco Bay Area

Sat, 20 Sep - Wed, 15 Oct
 Logo
15:35 - 14:15BFS-SFO
30h 40m1 stop
 Logo
21:20 - 23:10SFO-BFS
17h 50m1 stop
Sat, 20 Sep - Wed, 15 Oct
KLM Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
KLM Logo
16:54 - 16:55SFO-BHD
16h 01m2 stops
£602KLM
Find Deal
Sat, 20 Sep - Wed, 15 Oct
Delta Logo
06:30 - 19:41BHD-SFO
21h 11m2 stops
Delta Logo
13:19 - 21:15SFO-BHD
23h 56m2 stops
£607Delta
Find Deal
Sat, 20 Sep - Wed, 15 Oct
 Logo
05:45 - 09:30BFS-SFO
35h 45m3 stops
 Logo
16:20 - 23:10SFO-BFS
22h 50m3 stops
Wed, 20 Aug - Fri, 5 Sep
Delta Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Delta Logo
09:35 - 16:55SFO-BHD
23h 20m2 stops
£657Delta
Find Deal
Wed, 20 Aug - Fri, 5 Sep
Delta Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Delta Logo
13:45 - 21:15SFO-BHD
23h 30m1 stop
£659Delta
Find Deal
Wed, 20 Aug - Fri, 5 Sep
British Airways Logo
11:30 - 23:07BHD-SFO
19h 37m2 stops
British Airways Logo
14:17 - 20:45SFO-BHD
22h 28m2 stops
£660British Airways
Find Deal
Wed, 20 Aug - Fri, 5 Sep
Delta Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Delta Logo
13:45 - 21:15SFO-BHD
23h 30m1 stop
£662Delta
Find Deal
Wed, 20 Aug - Fri, 5 Sep
British Airways Logo
11:30 - 23:07BHD-SFO
19h 37m2 stops
British Airways Logo
14:17 - 20:45SFO-BHD
22h 28m2 stops
£665British Airways
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Virgin Atlantic Logo
06:30 - 11:45BHD-SFO
13h 15m1 stop
Virgin Atlantic Logo
13:45 - 21:15SFO-BHD
23h 30m1 stop
£4,694Virgin Atlantic
Find Deal
Booking Insights

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

Get data-powered insights and trends into flights from Belfast to San Francisco Bay Area 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 Bay Area?

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 Bay Area were found on KLM (£602) and Delta (£607).


Good to know - Cheap tickets from Belfast to San Francisco Bay Area

Cheapest flight£530
Flight from Belfast Intl Airport to San Francisco

FAQs - booking San Francisco Bay Area flights

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Belfast 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 Belfast 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 Belfast 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 Belfast 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 Belfast 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 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 evening, when retur flights cost £752 on average. Morning departures are around 6% more expensive than evening flights, on average. The most expensive time of day to fly to San Francisco Bay Area is generally in the morning, which is peak travel time and where the average cost of a ticket is £796.

Reviews of the top airlines flying from Belfast to San Francisco Bay Area

 
See real verified KAYAK customer reviews for airlines flying from Belfast to San Francisco Bay Area. 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 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.
7.2
American AirlinesOverall score based on 10000 reviews
8.0Crew
6.5Food
7.5Boarding
7.2Comfort
6.9Entertainment
Airline reviews

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

10.0 ExcellentBrendan, Jul 2025ORD - SNA
Read more American Airlines reviews

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

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Boarding was very efficient. Everyone got on board and we got on our way very quickly. It was frustrating that the entertainment app was not functioning properly. I was not able to activate some of the movies offered. The crew on this flight appears to be pretty grumpy. They had no smile on their faces. I felt like they were doing us a favor for being there.

Loved the staff, boarding and drink options! Wish the comfort of the seat could have been better nevertheless

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

Long 5 hour and 45 min flight and only one drink service and cookie snack

One bottle of water and a package of cookies for comfort plus. We had to literally beg a flight attendant for an extra bottle of water later in the flight due to feeling dehydrated.

Flight boarded from Gate 39 at OGG, the farthest gate in the terminal. There were no Hawaiian themed amenities for the flight. The first class service was mediocre at best; I received not special welcome or recognition as an executive platinum member of American Advantage program. The flight attendants were more concerned with their cell phones than saying "thank you" to the passengers as we disembarked. Fortunately, the flight arrived at LAX a few minutes early.

Everything about the flight check-in was smooth no line the plane is clean and bathroom

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

We never made it onto this flight due to BA's lackluster organisation.

The air hostess were good, cheerful, but I didn't like the boarding. My son and I initially bought our flight tickets, making sure it included 1 luggage and a carry on. Tickets were purchased for British airlines, but we were merged with American Airlines. At checking in our languages, we were told, we don't have luggage prepaid so we had to pay extra $125 each and almost £60 on our way back. I think that's unfair.

Economy seats are so small and compacted so close together that comfort is negatively affected, especially on long flights. However that is due to aircraft design, not anything the airline can do about it.

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

Cabin class types available on flights to Belfast

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

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