Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from San Francisco to Belfast from $285

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Belfast departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Belfast

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:35 pm - 9:15 pm
SFO
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
12:35 pm - 1:50 pm
BFS
-
SFO
33h 15m
1 stop
$866Multiple Airlines
Fri, May 15 - Fri, May 29
Multiple Airlines Logo
5:35 pm - 9:15 pm
SFO
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
8:55 am - 5:35 pm
BFS
-
SFO
40h 40m
3 stops
$1,065Multiple Airlines
Fri, May 15 - Fri, May 29
Multiple Airlines Logo
8:30 am - 3:15 pm
SFO
-
BFS
22h 45m
2 stops
Multiple Airlines Logo
10:05 am - 12:13 pm
BFS
-
SFO
34h 08m
3 stops
$1,205Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Multiple Airlines Logo
7:10 am - 7:50 pm
SFO
-
BFS
28h 40m
3 stops
Multiple Airlines Logo
10:05 am - 12:13 pm
BFS
-
SFO
34h 08m
3 stops
$1,207Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Multiple Airlines Logo
6:00 am - 7:40 pm
SFO
-
BFS
29h 40m
3 stops
Multiple Airlines Logo
5:45 pm - 2:30 pm
BFS
-
SFO
28h 45m
2 stops
$1,268Multiple Airlines
Wed, May 27 - Wed, Aug 5
Multiple Airlines Logo
6:20 pm - 6:50 pm
SFO
-
BFS
17h 30m
2 stops
Multiple Airlines Logo
1:55 pm - 3:50 pm
BFS
-
SFO
32h 55m
2 stops
$1,285Multiple Airlines
Sat, Mar 21 - Sat, Mar 28
Multiple Airlines Logo
7:45 pm - 9:45 am
SFO
-
BFS
30h 00m
1 stop
Multiple Airlines Logo
3:35 pm - 1:50 pm
BFS
-
SFO
30h 15m
1 stop
$1,303Multiple Airlines
Tue, Jun 9 - Mon, Jun 15
Multiple Airlines Logo
6:00 am - 7:15 pm
SFO
-
BFS
29h 15m
2 stops
Multiple Airlines Logo
5:45 pm - 2:30 pm
BFS
-
SFO
28h 45m
2 stops
$1,311Multiple Airlines
Wed, May 27 - Wed, Aug 5
Multiple Airlines Logo
6:00 am - 7:40 pm
SFO
-
BFS
29h 40m
3 stops
Multiple Airlines Logo
7:30 am - 2:30 pm
BFS
-
SFO
39h 00m
3 stops
$1,315Multiple Airlines
Wed, May 27 - Wed, Aug 5
Multiple Airlines Logo
5:35 pm - 9:15 pm
SFO
-
BFS
19h 40m
2 stops
Multiple Airlines Logo
10:10 pm - 4:15 pm
BFS
-
SFO
26h 05m
2 stops
$1,384Multiple Airlines
Fri, May 15 - Fri, May 29

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Belfast Intl Airport 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, momondo users made 832,500 searches. Data last updated February 6, 2026.
Use the filters below to find and compare flights from San Francisco to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 5/15

5:35 pm-9:15 pm

2 stops19h 40m

Belfast Intl

Fri 5/29

12:35 pm-1:50 pm

1 stop33h 15m

$866

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 5/15

5:35 pm-9:15 pm

2 stops19h 40m

Belfast Intl

Fri 5/29

8:55 am-5:35 pm

3 stops40h 40m

$1,065

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 6/9

8:30 am-3:15 pm

2 stops22h 45m

Belfast Intl

Mon 6/15

10:05 am-12:13 pm

3 stops34h 08m

$1,205

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 6/9

7:10 am-7:50 pm

3 stops28h 40m

Belfast Intl

Mon 6/15

10:05 am-12:13 pm

3 stops34h 08m

$1,207

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 5/27

6:00 am-7:40 pm

3 stops29h 40m

Belfast Intl

Wed 8/5

5:45 pm-2:30 pm

2 stops28h 45m

$1,268

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Sat 3/21

6:20 pm-6:50 pm

2 stops17h 30m

Belfast Intl

Sat 3/28

1:55 pm-3:50 pm

2 stops32h 55m

$1,285

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 6/9

7:45 pm-9:45 am

1 stop30h 00m

Belfast Intl

Mon 6/15

3:35 pm-1:50 pm

1 stop30h 15m

$1,303

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 5/27

6:00 am-7:15 pm

2 stops29h 15m

Belfast Intl

Wed 8/5

5:45 pm-2:30 pm

2 stops28h 45m

$1,311

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Wed 5/27

6:00 am-7:40 pm

3 stops29h 40m

Belfast Intl

Wed 8/5

7:30 am-2:30 pm

3 stops39h 00m

$1,315

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 5/15

5:35 pm-9:15 pm

2 stops19h 40m

Belfast Intl

Fri 5/29

10:10 pm-4:15 pm

2 stops26h 05m

$1,384

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
1
2

See travel insights to Belfast from

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

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

What is the cheapest month to fly to Belfast Intl Airport?

The month of April is, on average, the cheapest month to fly to Belfast Intl Airport from San Francisco, with most prices found around $622. If you’re not able to fly to Belfast Intl Airport in April, then October is your next best option. Flight prices from San Francisco to Belfast Intl Airport during October average around $651.

When to book flights from San Francisco to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Belfast Intl Airport (SFO to BFS) flight deals and tips

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

Fastest flight time

15h 05m

Direct flights

None
The fastest flight from San Francisco to Belfast Intl Airport takes 15h 05m
There are no direct flights from San Francisco to Belfast Intl Airport. There are no popular flight routes from San Francisco to Belfast Intl Airport.
Search flight deals

  • How far is San Francisco to Belfast Intl by plane?

    Belfast Intl is 5016.8 mi away from San Francisco. In terms of flight time, this usually takes a little over 15h 05m.

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

    Prices for flights from San Francisco Airport to Belfast Intl Airport refresh daily.

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

  • How old do you have to be to fly from San Francisco Airport to Belfast Intl 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 San Francisco Airport to Belfast Intl Airport.

  • What documentation or ID do you need to fly to Belfast Intl Airport?

    The required travel and health documents for your Belfast Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Belfast Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Belfast Intl Airport?

Best airlines flying from San Francisco to Belfast Intl Airport

Compare and see reviews for airlines that fly from San Francisco to Belfast Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $586Free CancellationRating
6.7
7,719 reviews
Search British Airways flights

Traveling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Armagh
Cookstown
Ballymena
Newry
Dungannon

Why use momondo?

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

It is quick and easy to find San Francisco to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

Yes. All flights to Belfast from San Francisco on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search for San Francisco to Belfast flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Belfast, momondo offers a useful price alert feature which will track prices for flights to Belfast from San Francisco and alert you when they change.

An easier way to manage your Belfast Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 3/8
Sun 3/15
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Belfast

Popular cities in the United Kingdom

Popular flights according to clicks in the last 7 days on momondo
Flights to London Heathrow Airportfrom $379
Flights to London Gatwick Airportfrom $352
Flights to London City Airportfrom $484
Flights to London Stansted Airportfrom $343
Flights to London Luton Airportfrom $343
Flights to Glasgow Intl Airportfrom $394
Flights to London Southend Airportfrom $472
Flights to Belfast City Airportfrom $553