HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Francisco

$711+ Cheap flights from Belfast to San Francisco (SFO)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
Feb 27 — Mar 61
Thu 2/27
Thu 3/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Belfast to San Francisco with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Belfast to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 22, 2025.

Round-trip from

$711
(British Airways)

Popular in

June

Cheapest in

November

Average price

$659
From Belfast to San Francisco
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($184 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2025
Search Deals

Find flight deals from Belfast to San Francisco

Cheapest flights from Belfast to San Francisco
Explore the most affordable flight options available from Belfast to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 22, 2025.

This British Airways deal was found by Cheapflights users on 2/21. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:35 amBHD - SFO
1 stop18h 40mBritish Airways
Sun 4/277:20 pmSFO - BHD
1 stop14h 25mBritish Airways
Deal found 2/21$711
This Cheapflightsfares deal was found by Cheapflights users on 2/22. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:35 amBHD - SFO
1 stop15h 15mIberia
Sun 4/2712:22 pmSFO - BHD
2 stops18h 18mIberia
Deal found 2/22$725
This Gurufare deal was found by Cheapflights users on 2/21. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/86:35 amBHD - SFO
2 stops22h 13mMultiple Airlines
Sun 4/2711:59 pmSFO - BHD
2 stops28h 56mMultiple Airlines
Deal found 2/21$753
This American Airlines deal was found by Cheapflights users on 2/21. 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 4/911:30 amBHD - SFO
2 stops17h 44mAmerican Airlines
Sun 4/277:21 amSFO - BHD
2 stops17h 44mAmerican Airlines
Deal found 2/21$810
This TravelUp deal was found by Cheapflights users on 2/22. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/255:25 pmBHD - SFO
1 stop26h 20mVirgin Atlantic
Sun 6/19:52 pmSFO - BHD
2 stops39h 23mVirgin Atlantic
Deal found 2/22$815

Find flights from Belfast to San Francisco within your budget

Customize your flight search to find flights from Belfast to San Francisco 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 February 22, 2025.

Fly from

Belfast

Fly to

San Francisco

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 4/8

6:35 am-5:15 pm

1 stop18h 40m

San Francisco

Sun 4/27

7:20 pm-5:45 pm

1 stop14h 25m

$711

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 4/8

6:35 am-1:50 pm

1 stop15h 15m

San Francisco

Sun 4/27

12:22 pm-2:40 pm

2 stops18h 18m

$725

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 4/8

6:35 am-8:48 pm

2 stops22h 13m

San Francisco

Sun 4/27

11:59 pm-12:55 pm

2 stops28h 56m

$753

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 4/9

11:30 am-9:14 pm

2 stops17h 44m

San Francisco

Sun 4/27

7:21 am-9:05 am

2 stops17h 44m

$810

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 5/25

5:25 pm-11:45 am

1 stop26h 20m

San Francisco

Sun 6/1

9:52 pm-9:15 pm

2 stops39h 23m

$815

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/21

Best time to book a flight from Belfast to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Belfast 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.

Travel insights for flights from Belfast to San Francisco

Get recent, data-driven insights about flights from Belfast to San Francisco including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Belfast to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Belfast to San Francisco (average of $276). Flying from Belfast to San Francisco in June is currently the most expensive (average of $403). 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.

Rainfall in San Francisco by month

Plan your trip to San Francisco by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

Temperature in San Francisco by month

Plan your trip to San Francisco by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to San Francisco. Reviews last updated February 22, 2025.
Virgin Atlantic
7.5
Good
653 reviews

Food

6.9

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

Virgin Atlantic
7.5
Good
653 reviews
Virgin Atlantic
7.5
Good
653 reviews

Food

6.9

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

American Airlines
7.2
Good
10,000 reviews
Virgin Atlantic
7.5
Good
653 reviews

Food

6.9

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

Iberia
7.0
Good
2,639 reviews
Virgin Atlantic
7.5
Good
653 reviews

Food

6.9

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

British Airways
6.6
Okay
6,761 reviews
Virgin Atlantic
7.5
Good
653 reviews

Food

6.9

Entertainment

7.5

Crew

8.1

Overall

7.5

Comfort

7.3

Boarding

7.7

Reviews

1 / 20

10.0
Excellent

K,Aug 2024

LHR - MIA

The crew leader who did the tannoys was amazing. He really made us laugh 😂. Also, a great landing in very windy conditions.

Related info for your journey

Find useful and relevant information for your journey from Belfast to San Francisco. 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 into for flights to San Francisco from Belfast?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly into when you book flights from Belfast to San Francisco. 0 airlines have flights to San Francisco from Belfast on a regular basis. Booking flights from Belfast to San Francisco should not be difficult; the airport handles an average of 0 inbound flights from Belfast per day.

  • What are the cheapest airlines flying from Belfast to San Francisco round-trip?

    Cheapflights users have booked flights from Belfast to San Francisco round-trip from $711. Other airlines that can offer you cheap pricing are Iberia, from $725, and American Airlines, from $810. British Airways is 12% cheaper than the average price of flights available within the next 90 days to this destination.

  • Can I find deals for flights from Belfast to San Francisco that include hotel bookings?

    Yes. In addition to deals on Belfast to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Belfast to San Francisco?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Belfast to San Francisco.

  • Can I find deals for business class flights from Belfast to San Francisco?

    Yes. Cheapflights offers flight deals from Belfast to San Francisco 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 Belfast to San Francisco?

    Currently, January is the cheapest month in which you can book a flight from Belfast to San Francisco (average of $276). Flying from Belfast to San Francisco in June is currently the most expensive (average of $403). 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

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Roseville
Mountain View
Turlock
Santa Cruz
Fairfield
Manteca
Sausalito
Watsonville
Hayward
Richmond
Hollister
South San Francisco
Antioch
Milpitas
Vallejo
Newark
Alameda
Campbell
Pacific Grove
Sunnyvale

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.