$313+ Cheap flights from San Francisco (SFO) to Belfast
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
Apr 23 — Apr 301
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Belfast with Cheapflights
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Cheapest flights from San Francisco to BelfastExplore the most affordable flight options available from San Francisco to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
Explore the most affordable flight options available from San Francisco to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 9/87:30 pm
SFO
- BHD
1 stop15h 25m
British Airways
Thu 9/176:30 am
BHD
- SFO
1 stop15h 20m
British Airways
Deal found 3/19![British Airways logo]()
$818
This British Airways deal was found by Cheapflights users on 3/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/98:40 pm
SFO
- BHD
1 stop15h 35m
British Airways
Fri 11/138:45 am
BHD
- SFO
1 stop14h 15m
British Airways
Deal found 3/22![British Airways logo]()
$822
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Tue 9/81:59 pm
SFO
- BHD
2 stops17h 21m
American Airlines
Thu 9/176:30 am
BHD
- SFO
1 stop15h 20m
American Airlines
Deal found 3/19![American Airlines logo]()
$824
This oojo deal was found by Cheapflights users on 3/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:30 pm
SFO
- BHD
1 stop16h 10m
British Airways
Tue 8/186:20 pm
BHD
- SFO
1 stop27h 30m
British Airways
Deal found 3/22![British Airways logo]()
$828
This American Airlines deal was found by Cheapflights users on 3/22. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/43:37 pm
SFO
- BHD
2 stops17h 58m
American Airlines
Tue 8/181:45 pm
BHD
- SFO
2 stops17h 21m
American Airlines
Deal found 3/22![American Airlines logo]()
$859
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:55 pm
SFO
- BFS
2 stops26h 25m
Multiple Airlines
Tue 5/128:15 pm
BFS
- SFO
2 stops28h 25m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$867
This British Airways deal was found by Cheapflights users on 3/19. 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.
Sat 10/177:30 pm
SFO
- BHD
1 stop15h 50m
British Airways
Wed 10/216:30 am
BHD
- SFO
1 stop15h 20m
British Airways
Deal found 3/19![British Airways logo]()
$872
This oojo deal was found by Cheapflights users on 3/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:35 pm
SFO
- BHD
1 stop14h 55m
British Airways
Mon 9/147:35 pm
BHD
- SFO
1 stop26h 15m
British Airways
Deal found 3/20![British Airways logo]()
$878
This Cheapflightsfares deal was found by Cheapflights users on 3/21. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:35 pm
SFO
- BHD
1 stop14h 30m
British Airways
Sat 9/197:05 am
BHD
- SFO
1 stop14h 45m
British Airways
Deal found 3/21![British Airways logo]()
$923
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
SFO
- BFS
3 stops26h 20m
Multiple Airlines
Tue 6/1611:30 pm
BFS
- SFO
3 stops47h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$987
This Mytrip deal was found by Cheapflights users on 3/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:30 am
SFO
- BFS
2 stops22h 45m
Multiple Airlines
Tue 8/187:35 am
BFS
- SFO
3 stops39h 00m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,055
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
SFO
- BFS
2 stops29h 05m
Multiple Airlines
Mon 6/89:55 pm
BFS
- SFO
2 stops26h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,247
Best flights from San Francisco to BelfastDiscover carefully curated flight deals from San Francisco to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
Discover carefully curated flight deals from San Francisco to Belfast that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/19. 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 9/87:30 pm
SFO
- BHD
1 stop15h 25m
British Airways
Thu 9/176:30 am
BHD
- SFO
1 stop15h 20m
British Airways
Deal found 3/19![British Airways logo]()
$818
This American Airlines deal was found by Cheapflights users on 3/19. 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.
Tue 9/81:59 pm
SFO
- BHD
2 stops17h 21m
American Airlines
Thu 9/176:30 am
BHD
- SFO
1 stop15h 20m
American Airlines
Deal found 3/19![American Airlines logo]()
$824
This Mytrip deal was found by Cheapflights users on 3/22. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:30 am
SFO
- BFS
2 stops22h 45m
Multiple Airlines
Tue 8/187:35 am
BFS
- SFO
3 stops39h 00m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,055
This KLM deal was found by Cheapflights users on 3/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:00 pm
SFO
- BHD
2 stops18h 55m
KLM
Wed 7/229:50 am
BHD
- SFO
1 stop33h 55m
KLM
Deal found 3/21![KLM logo]()
$1,066
This British Airways deal was found by Cheapflights users on 3/23. 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.
Sun 9/64:35 pm
SFO
- BHD
1 stop17h 05m
British Airways
Wed 9/94:05 pm
BHD
- SFO
1 stop29h 45m
British Airways
Deal found 3/23![British Airways logo]()
$822
This American Airlines deal was found by Cheapflights users on 3/21. 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.
Sat 9/510:45 am
SFO
- BHD
2 stops17h 40m
American Airlines
Sat 9/197:05 am
BHD
- SFO
2 stops20h 11m
American Airlines
Deal found 3/21![American Airlines logo]()
$934
This FlightHub deal was found by Cheapflights users on 3/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:21 pm
SFO
- BHD
2 stops20h 14m
British Airways
Mon 9/147:35 pm
BHD
- SFO
1 stop26h 15m
British Airways
Deal found 3/20![British Airways logo]()
$891
This KLM deal was found by Cheapflights users on 3/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:45 pm
SFO
- BHD
1 stop35h 35m
KLM
Tue 6/169:50 am
BHD
- SFO
2 stops20h 55m
KLM
Deal found 3/21![KLM logo]()
$1,101
This KLM deal was found by Cheapflights users on 3/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/151:45 pm
SFO
- BHD
1 stop35h 35m
KLM
Sun 5/249:50 am
BHD
- SFO
1 stop33h 55m
KLM
Deal found 3/21![KLM logo]()
$1,113
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:00 am
SFO
- BFS
2 stops29h 05m
Multiple Airlines
Mon 6/89:55 pm
BFS
- SFO
2 stops26h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,247
This oojo deal was found by Cheapflights users on 3/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/237:30 pm
SFO
- BHD
1 stop14h 45m
British Airways
Mon 6/16:30 pm
BHD
- SFO
1 stop27h 20m
British Airways
Deal found 3/20![British Airways logo]()
$1,138
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/811:10 am
SFO
- BFS
2 stops24h 05m
Multiple Airlines
Wed 7/225:45 pm
BFS
- SFO
2 stops28h 45m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,344
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:40 pm
SFO
- BFS
2 stops18h 10m
Multiple Airlines
Tue 5/124:40 pm
BFS
- SFO
3 stops32h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,442
This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/238:30 am
SFO
- BFS
3 stops28h 10m
Multiple Airlines
Mon 6/159:25 pm
BFS
- SFO
2 stops31h 45m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$1,449
This Trip.com deal was found by Cheapflights users on 3/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/912:55 pm
SFO
- BFS
2 stops26h 25m
Multiple Airlines
Sat 7/43:35 pm
BFS
- SFO
2 stops33h 05m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,527
This Mytrip deal was found by Cheapflights users on 3/24. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/126:00 am
SFO
- BFS
3 stops31h 50m
Multiple Airlines
Sat 7/49:40 pm
BFS
- SFO
2 stops25h 47m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$1,569
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:35 pm
SFO
- BFS
2 stops17h 20m
Multiple Airlines
Mon 6/89:55 pm
BFS
- SFO
2 stops26h 00m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,586
Last-minute flights from San Francisco to BelfastDiscover last-minute flight deals from San Francisco to Belfast. Data last updated March 24, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Belfast. Data last updated March 24, 2026 and is based on user searches.
This KLM deal was found by Cheapflights users on 3/21. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/252:55 pm
SFO
- BHD
1 stop18h 55m
KLM
Fri 3/275:10 pm
BHD
- SFO
1 stop26h 40m
KLM
Deal found 3/21![KLM logo]()
$1,202
This Ovago deal was found by Cheapflights users on 3/21. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/251:25 pm
SFO
- BHD
2 stops20h 25m
Multiple Airlines
Fri 3/275:10 pm
BHD
- SFO
1 stop26h 40m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,285
This KAYAK deal was found by Cheapflights users on 3/21. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/257:00 am
SFO
- BHD
2 stops20h 15m
British Airways
Fri 3/2711:30 am
BHD
- SFO
2 stops28h 41m
British Airways
Deal found 3/21![British Airways logo]()
$1,399
This Mytrip deal was found by Cheapflights users on 3/21. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/253:40 pm
SFO
- BFS
2 stops18h 45m
Multiple Airlines
Fri 3/275:30 pm
BFS
- SFO
2 stops31h 15m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,733
One-way flights from San Francisco to BelfastSearch for one-way flight options from San Francisco to Belfast. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
Search for one-way flight options from San Francisco to Belfast. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
This KLM deal was found by Cheapflights users on 3/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:45 pm
SFO
- BHD
1 stop19h 10m
KLM
Deal found 3/23![KLM logo]()
$313
This oojo deal was found by Cheapflights users on 3/22. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/184:35 pm
SFO
- BHD
1 stop14h 30m
British Airways
Deal found 3/22![British Airways logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 3/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:40 pm
SFO
- BFS
2 stops37h 40m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$367
This oojo deal was found by Cheapflights users on 3/23. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:08 pm
SFO
- BHD
2 stops18h 47m
British Airways
Deal found 3/23![British Airways logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
SFO
- BFS
3 stops41h 05m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$386
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:40 am
SFO
- BFS
3 stops22h 35m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$390
This Justfly.com deal was found by Cheapflights users on 3/22. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/215:40 pm
SFO
- BHD
2 stops19h 25m
Aer Lingus
Deal found 3/22![Aer Lingus logo]()
$416
This Mytrip deal was found by Cheapflights users on 3/23. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:10 am
SFO
- BHD
3 stops25h 40m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$422
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/206:00 am
SFO
- BHD
3 stops26h 50m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$429
This Kiwi.com deal was found by Cheapflights users on 3/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/218:40 am
SFO
- BHD
3 stops23h 20m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$434
This Cheapflightsfares deal was found by Cheapflights users on 3/22. 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.
Mon 4/204:35 pm
SFO
- BHD
1 stop16h 55m
British Airways
Deal found 3/22![British Airways logo]()
$448
This British Airways deal was found by Cheapflights users on 3/22. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/214:35 pm
SFO
- BHD
1 stop17h 00m
British Airways
Deal found 3/22![British Airways logo]()
$457
Find flight deals from San Francisco to Belfast
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Belfast (BF1). 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 March 24, 2026.
Round-trip from | $818 (Cheapflightsfares) |
|---|---|
One-way from | $313 (KLM) |
Popular in | June |
Cheapest in | April |
Average price | $866 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Belfast 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 March 24, 2026.
Use the filters below to find and compare flights from San Francisco to Belfast that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 9/8
7:30 pm-6:55 pm
1 stop15h 25m
Belfast City
Thu 9/17
6:30 am-1:50 pm
1 stop15h 20m
$818
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Sun 9/6
4:35 pm-5:40 pm
1 stop17h 05m
Belfast City
Wed 9/9
4:05 pm-1:50 pm
1 stop29h 45m
$822
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 9/8
1:59 pm-3:20 pm
2 stops17h 21m
Belfast City
Thu 9/17
6:30 am-1:50 pm
1 stop15h 20m
$824
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Thu 9/10
4:21 pm-8:35 pm
2 stops20h 14m
Belfast City
Mon 9/14
7:35 pm-1:50 pm
1 stop26h 15m
$891
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Sat 9/5
10:45 am-12:25 pm
2 stops17h 40m
Belfast City
Sat 9/19
7:05 am-7:16 pm
2 stops20h 11m
$934
San FranciscoBelfast
SFO - BFS
SFOBFS
San Francisco
Tue 8/4
8:30 am-3:15 pm
2 stops22h 45m
Belfast Intl
Tue 8/18
7:35 am-2:35 pm
3 stops39h 00m
$1,055
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Wed 7/8
2:00 pm-4:55 pm
2 stops18h 55m
Belfast City
Wed 7/22
9:50 am-11:45 am
1 stop33h 55m
$1,066
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Tue 6/2
1:45 pm-9:20 am
1 stop35h 35m
Belfast City
Tue 6/16
9:50 am-10:45 pm
2 stops20h 55m
$1,101
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Fri 5/15
1:45 pm-9:20 am
1 stop35h 35m
Belfast City
Sun 5/24
9:50 am-11:45 am
1 stop33h 55m
$1,113
San FranciscoBelfast
SFO - BHD
SFOBHD
San Francisco
Sat 5/23
7:30 pm-6:15 pm
1 stop14h 45m
Belfast City
Mon 6/1
6:30 pm-1:50 pm
1 stop27h 20m
$1,138
Showing 1-10 of 30 resultsSorted by cheapest first
Best time to book a flight from San Francisco to Belfast
Have a flexible travel schedule? Discover the best time to fly to Belfast from San Francisco with our price prediction graph.
SFO-BF1
SFO-BHD
SFO-BFS
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.
Cheapflights Insights
Everything you need to know about your flight from San Francisco to Belfast
SFO-BF1
SFO-BHD
SFO-BFS
What is the cheapest month to book a flight from San Francisco to Belfast?
Currently, April is the cheapest month in which you can book a flight from San Francisco to Belfast (average of $587). Flying from San Francisco to Belfast in June is currently the most expensive (average of $1,213). 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.
Reviews of airlines servicing Belfast
Get insights into the airlines that provide service to Belfast. 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 Belfast. Reviews last updated March 24, 2026.
Get a feel of what it's like to fly with British Airways from San Francisco to Belfast by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
6.8
Food
6.4
Overall
6.7
Entertainment
6.4
Crew
7.6
Boarding
6.9
Reviews
1 / 20
10.0
ExcellentViorica,Mar 2026
PHX - LHR
Comfort
6.8
Food
6.4
Overall
6.7
Entertainment
6.4
Crew
7.6
Boarding
6.9
Reviews
1 / 20
10.0
ExcellentViorica,Mar 2026
PHX - LHR
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for San Francisco to Belfast
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Complete your trip
Complete your trip to Belfast by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Francisco to Belfast by cabin class
Find flights from San Francisco to Belfast, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Francisco and Belfast flights
Browse other San Francisco and Belfast flight options. Last updated on March 24, 2026.
Other flights from San Francisco
Browse through other flights departing from San Francisco. Flights are based on user searches made on Cheapflights and were last updated on March 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from San Francisco to Belfast
Discover the top airline that operate flights from San Francisco to Belfast. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$586 | Average$795 | FlexibilityNo cancel fee | On-time70% |