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

British Airways is the most popular carrier operating from Belfast to San Francisco

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

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

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

As of June 2026, there is 1 operator available to choose from for flights from Belfast to San Francisco Airport.

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

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 Belfast to San Francisco Airport.

What documentation or ID do you need to fly to San Francisco Airport?

The travel and health documents required for your trip to San Francisco Airport 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 San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£340 Cheap Flights from Belfast to San Francisco in 2026

Q: What is the typical price of a round-trip flight between Belfast and San Francisco?

Prices are currently high for flights on this route. Typical prices usually range from £622 to £513. The lowest price recently found on this route was £636.

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Find the cheapest flights from Belfast to San Francisco

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

11:35 - 17:30

BHD

SFO

13h 55m

1 stop

15:46 - 20:35

SFO

BHD

20h 49m

2 stops

£636American Airlines

Wed, 26 Aug - Fri, 4 Sep

09:40 - 23:45

BHD

SFO

22h 05m

2 stops

15:46 - 20:35

SFO

BHD

20h 49m

2 stops

£641American Airlines

Tue, 25 Aug - Fri, 4 Sep

11:35 - 13:50

BHD

SFO

34h 15m

1 stop

16:35 - 15:30

SFO

BHD

14h 55m

1 stop

£667American Airlines

Wed, 26 Aug - Fri, 4 Sep

16:25 - 13:50

BHD

SFO

29h 25m

1 stop

11:00 - 15:30

SFO

BHD

20h 30m

2 stops

£670British Airways

Tue, 25 Aug - Fri, 4 Sep

06:30 - 19:48

BHD

SFO

21h 18m

2 stops

16:35 - 18:10

SFO

BHD

17h 35m

1 stop

£671American Airlines

Fri, 28 Aug - Fri, 4 Sep

09:50 - 00:59

BHD

SFO

23h 09m

2 stops

08:55 - 16:55

SFO

BHD

24h 00m

2 stops

£687Delta

Thu, 2 Jul - Thu, 9 Jul

06:20 - 11:21

BFS

SFO

37h 01m

2 stops

19:50 - 23:25

SFO

BFS

19h 35m

1 stop

£699Multiple Airlines

Sat, 4 Jul - Sat, 11 Jul

09:35 - 23:10

BHD

SFO

21h 35m

2 stops

16:35 - 17:30

SFO

BHD

16h 55m

1 stop

£702Multiple Airlines

Thu, 16 Jul - Mon, 20 Jul

09:50 - 23:44

BHD

SFO

21h 54m

2 stops

22:35 - 09:15

SFO

BHD

26h 40m

2 stops

£717Delta

Sun, 30 Aug - Fri, 4 Sep

17:30 - 16:24

BHD

SFO

30h 54m

2 stops

13:45 - 09:20

SFO

BHD

35h 35m

1 stop

£728KLM

Fri, 3 Jul - Fri, 10 Jul

Save money when you book flights with momondo

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

American Airlines flights from Belfast to San Francisco

Our best American Airlines deals on Belfast to San Francisco flight tickets

American Airlines

26 Aug

BHD11:35Belfast City

13h 55m

1 stop

SFO17:30San Francisco

4 Sept

SFO15:46San Francisco

20h 49m

2 stops

BHD20:35Belfast City

£636

American Airlines

25 Aug

BHD09:40Belfast City

22h 05m

2 stops

SFO23:45San Francisco

4 Sept

SFO15:46San Francisco

20h 49m

2 stops

BHD20:35Belfast City

£641

American Airlines

26 Aug

BHD11:35Belfast City

34h 15m

1 stop

SFO13:50San Francisco

4 Sept

SFO16:35San Francisco

14h 55m

1 stop

BHD15:30Belfast City

£667

British Airways flights from Belfast to San Francisco

Our best British Airways deals on Belfast to San Francisco flight tickets

British Airways

25 Aug

BHD16:25Belfast City

29h 25m

1 stop

SFO13:50San Francisco

4 Sept

SFO11:00San Francisco

20h 30m

2 stops

BHD15:30Belfast City

£670

British Airways

21 Jul

BHD09:40Belfast City

20h 48m

2 stops

SFO22:28San Francisco

5 Aug

SFO16:35San Francisco

15h 05m

1 stop

BHD15:40Belfast City

£747

British Airways

21 Jul

BHD09:40Belfast City

19h 16m

2 stops

SFO20:56San Francisco

5 Aug

SFO10:24San Francisco

17h 36m

2 stops

BHD12:00Belfast City

£750

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 26/8

11:35-17:30

1 stop13h 55m

San Francisco

Fri 4/9

15:46-20:35

2 stops20h 49m

£636

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 25/8

09:40-23:45

2 stops22h 05m

San Francisco

Fri 4/9

15:46-20:35

2 stops20h 49m

£641

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 26/8

11:35-13:50

1 stop34h 15m

San Francisco

Fri 4/9

16:35-15:30

1 stop14h 55m

£667

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Tue 25/8

16:25-13:50

1 stop29h 25m

San Francisco

Fri 4/9

11:00-15:30

2 stops20h 30m

£670

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 28/8

06:30-19:48

2 stops21h 18m

San Francisco

Fri 4/9

16:35-18:10

1 stop17h 35m

£671

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 2/7

09:50-00:59

2 stops23h 09m

San Francisco

Thu 9/7

08:55-16:55

2 stops24h 00m

£687

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Sat 4/7

06:20-11:21

2 stops37h 01m

San Francisco

Sat 11/7

19:50-23:25

1 stop19h 35m

£699

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 16/7

09:35-23:10

2 stops21h 35m

San Francisco

Mon 20/7

16:35-17:30

1 stop16h 55m

£702

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Sun 30/8

09:50-23:44

2 stops21h 54m

San Francisco

Fri 4/9

22:35-09:15

2 stops26h 40m

£717

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 3/7

17:30-16:24

2 stops30h 54m

San Francisco

Fri 10/7

13:45-09:20

1 stop35h 35m

£728

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

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

What is the typical price of a round-trip flight between Belfast and San Francisco?

What is the cheapest month to fly to San Francisco?

The month of November is, on average, the cheapest month to fly to San Francisco from Belfast, with most prices found around £0. If you are unable to visit San Francisco during the month of November, then departing from Belfast during the month January is also very affordable. Most momondo users find prices during this month for around £0.

Cheap Belfast to San Francisco flight deals and tips

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

Fastest flight time	19h 30m
Direct flights	None

The fastest flight from Belfast to San Francisco takes 19h 30m

There are no direct flights from Belfast to San Francisco. There are no popular flight routes from Belfast to San Francisco.

Search flight deals

Frequently asked questions about flying from Belfast to San Francisco

How far is Belfast to San Francisco by plane?
San Francisco is 5028.4 mi away from Belfast. A reasonable flight in good conditions will take 19h 30m.
When did momondo last update prices for flights from Belfast to San Francisco Airport?
Prices for flights from Belfast to San Francisco Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Belfast to San Francisco Airport?
As of June 2026, there is 1 operator available to choose from for flights from Belfast to San Francisco Airport.
How old do you have to be to fly from Belfast to San Francisco Airport?
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 Belfast to San Francisco Airport.
What documentation or ID do you need to fly to San Francisco Airport?
The travel and health documents required for your trip to San Francisco Airport 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 San Francisco Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Belfast to San Francisco

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

Airline	Rating	Free Cancellation	Price
British Airways	PriceFrom £508	Free Cancellation	Rating 6.7 8,028 reviews		Search British Airways flights

Sunnyvale

Santa Cruz

Rohnert Park

Windsor

Big Sur

South San Francisco

Capitola

Newark

Sausalito

San Bruno

Woodland

Campbell

Palo Alto

Pacific Grove

Seaside

Aptos

Roseville

Burlingame

Novato

Mill Valley

Why use momondo?

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

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

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

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

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

momondo provides multiple filters to help you find the best flight to San Francisco from Belfast. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Of course. momondo tracks the price of Belfast to San Francisco flights. All you need is a valid email address and we will do the rest; it is that quick and easy.