$334+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
Sep 14 — Sep 211
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from San Francisco to Belfast 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 San Francisco to Belfast
Cheapest
Best
Last-minute
One-way
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 August 15, 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 August 15, 2026.
This British Airways deal was found by Cheapflights users on 8/10. 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 11/158:35 pm -
1 stop15h 40m
Thu 11/196:35 am -
1 stop16h 20m
Deal found 8/10![British Airways logo]()
$874
This British Airways deal was found by Cheapflights users on 8/13. 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 11/155:25 pm -
1 stop17h 25m
Wed 11/1812:20 pm -
1 stop14h 25m
Deal found 8/13![British Airways logo]()
$884
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:35 pm -
1 stop15h 45m
Sat 11/216:15 pm -
1 stop28h 40m
Deal found 8/12![British Airways logo]()
$945
This Mytrip deal was found by Cheapflights users on 8/10. 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 9/244:45 pm -
2 stops22h 05m
Thu 10/14:40 pm -
2 stops30h 00m
Deal found 8/10![Multiple Airlines logo]()
$1,033
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Sun 9/135:40 pm -
2 stops19h 20m
Sat 9/196:20 am -
3 stops47h 29m
Deal found 8/9![Multiple Airlines logo]()
$1,107
This Mytrip deal was found by Cheapflights users on 8/12. 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 9/2212:05 am -
2 stops31h 50m
Wed 9/305:55 am -
2 stops23h 04m
Deal found 8/12![Multiple Airlines logo]()
$1,116
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:13 am -
2 stops19h 07m
Sun 9/69:45 am -
2 stops22h 13m
Deal found 8/12![Delta logo]()
$1,131
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Sun 9/276:00 am -
3 stops30h 15m
Sun 10/42:40 pm -
2 stops33h 35m
Deal found 8/13![Multiple Airlines logo]()
$1,172
This Mytrip deal was found by Cheapflights users on 8/12. 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 11/127:25 pm -
2 stops18h 30m
Sat 11/2111:00 pm -
3 stops47h 45m
Deal found 8/12![Multiple Airlines logo]()
$1,198
This Mytrip deal was found by Cheapflights users on 8/11. 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 8/288:10 am -
2 stops24h 20m
Sat 9/59:40 pm -
3 stops47h 10m
Deal found 8/11![Multiple Airlines logo]()
$1,242
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 August 15, 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 August 15, 2026.
This British Airways deal was found by Cheapflights users on 8/10. 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 11/155:25 pm -
1 stop17h 15m
Wed 11/183:40 pm -
1 stop31h 15m
Deal found 8/10![British Airways logo]()
$874
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Sun 9/135:40 pm -
2 stops19h 20m
Sat 9/196:20 am -
3 stops47h 29m
Deal found 8/9![Multiple Airlines logo]()
$1,107
This British Airways deal was found by Cheapflights users on 8/10. 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 11/158:35 pm -
1 stop15h 40m
Thu 11/196:35 am -
1 stop16h 20m
Deal found 8/10![British Airways logo]()
$874
This Priceline deal was found by Cheapflights users on 8/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/168:35 pm -
1 stop15h 55m
Sat 2/611:35 am -
1 stop15h 10m
Deal found 8/10![British Airways logo]()
$953
This Mytrip deal was found by Cheapflights users on 8/12. 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 9/2212:05 am -
2 stops31h 50m
Wed 9/305:55 am -
2 stops23h 04m
Deal found 8/12![Multiple Airlines logo]()
$1,116
This Mytrip deal was found by Cheapflights users on 8/10. 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 9/243:05 pm -
2 stops22h 35m
Thu 10/18:55 pm -
3 stops46h 50m
Deal found 8/10![Multiple Airlines logo]()
$1,123
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Sun 9/276:00 am -
3 stops30h 15m
Sun 10/42:40 pm -
2 stops33h 35m
Deal found 8/13![Multiple Airlines logo]()
$1,172
This Mytrip deal was found by Cheapflights users on 8/11. 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 8/288:10 am -
2 stops24h 20m
Sat 9/59:40 pm -
3 stops47h 10m
Deal found 8/11![Multiple Airlines logo]()
$1,242
This Mytrip deal was found by Cheapflights users on 8/10. 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 1/207:25 pm -
2 stops18h 35m
Wed 2/38:20 am -
3 stops40h 10m
Deal found 8/10![Multiple Airlines logo]()
$1,885
Last-minute flights from San Francisco to BelfastDiscover last-minute flight deals from San Francisco to Belfast. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Belfast. Data last updated August 15, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/11. 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.
Fri 8/283:46 pm -
2 stops20h 49m
Sat 9/57:05 am -
2 stops24h 40m
Deal found 8/11![British Airways logo]()
$1,201
This Mytrip deal was found by Cheapflights users on 8/11. 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 8/288:10 am -
2 stops24h 20m
Sat 9/59:40 pm -
3 stops47h 10m
Deal found 8/11![Multiple Airlines logo]()
$1,242
This Virgin Atlantic deal was found by Cheapflights users on 8/12. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/281:45 pm -
1 stop19h 10m
Sat 9/55:30 pm -
1 stop26h 15m
Deal found 8/12![Virgin Atlantic logo]()
$1,297
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/306:13 am -
2 stops19h 07m
Sun 9/69:45 am -
2 stops22h 13m
Deal found 8/12![Delta logo]()
$1,131
This FlightHub deal was found by Cheapflights users on 8/10. 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.
Sun 8/307:00 am -
2 stops19h 30m
Sun 9/66:30 am -
2 stops25h 15m
Deal found 8/10![British Airways logo]()
$1,134
This KLM deal was found by Cheapflights users on 8/11. 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.
Thu 9/31:45 pm -
1 stop19h 10m
Thu 9/105:30 pm -
1 stop26h 15m
Deal found 8/11![KLM logo]()
$1,271
This Ovago deal was found by Cheapflights users on 8/11. 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.
Thu 9/33:39 pm -
2 stops19h 06m
Thu 9/1012:45 pm -
2 stops17h 54m
Deal found 8/11![British Airways logo]()
$1,303
This Mytrip deal was found by Cheapflights users on 8/9. 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.
Sun 9/135:40 pm -
2 stops19h 20m
Sat 9/196:20 am -
3 stops47h 29m
Deal found 8/9![Multiple Airlines logo]()
$1,107
This Mytrip deal was found by Cheapflights users on 8/12. 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 9/2212:05 am -
2 stops31h 50m
Wed 9/305:55 am -
2 stops23h 04m
Deal found 8/12![Multiple Airlines logo]()
$1,116
This Mytrip deal was found by Cheapflights users on 8/10. 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 9/244:45 pm -
2 stops22h 05m
Thu 10/14:40 pm -
2 stops30h 00m
Deal found 8/10![Multiple Airlines logo]()
$1,033
This Mytrip deal was found by Cheapflights users on 8/13. 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.
Sun 9/276:00 am -
3 stops30h 15m
Sun 10/42:40 pm -
2 stops33h 35m
Deal found 8/13![Multiple Airlines logo]()
$1,172
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 August 15, 2026.
Search for one-way flight options from San Francisco to Belfast. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Thu 10/1510:06 pm -
3 stops34h 24m
Deal found 8/9![Multiple Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 10/511:58 pm -
3 stops39h 22m
Deal found 8/12![Multiple Airlines logo]()
$392
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 10/59:05 pm -
3 stops33h 10m
Deal found 8/12![Multiple Airlines logo]()
$401
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 10/55:35 pm -
2 stops16h 25m
Deal found 8/12![Aer Lingus logo]()
$452
This Delta deal was found by Cheapflights users on 8/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:45 pm -
1 stop19h 10m
Deal found 8/12![Delta logo]()
$468
This FlightHub deal was found by Cheapflights users on 8/14. 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.
Wed 8/266:02 am -
2 stops25h 38m
Deal found 8/14![British Airways logo]()
$475
This KLM deal was found by Cheapflights users on 8/14. 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 8/261:45 pm -
1 stop19h 10m
Deal found 8/14![KLM logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 8/264:35 pm -
3 stops35h 15m
Deal found 8/14![Multiple Airlines logo]()
$526
This Kiwi.com deal was found by Cheapflights users on 8/14. 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.
Wed 8/264:35 pm -
3 stops41h 10m
Deal found 8/14![Multiple Airlines logo]()
$582
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 August 15, 2026.
Round-trip from | $857 (Expedia) |
|---|---|
One-way from | $334 (Kiwi.com) |
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 August 15, 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
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Sun 11/15
5:25 pm-6:40 pm
1 stop17h 15m
Belfast City
Wed 11/18
3:40 pm-2:55 pm
1 stop31h 15m
$874
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Sun 11/15
8:35 pm-8:15 pm
1 stop15h 40m
Belfast City
Thu 11/19
6:35 am-2:55 pm
1 stop16h 20m
$874
Quickest round-trip
San FranciscoBelfast
SFO San Francisco - BHD Belfast City
SFOBHD
San Francisco
Sat 1/16
8:35 pm-8:30 pm
1 stop15h 55m
Belfast City
Sat 2/6
11:35 am-6:45 pm
1 stop15h 10m
$953
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Sun 9/13
5:40 pm-9:00 pm
2 stops19h 20m
Belfast Intl
Sat 9/19
6:20 am-9:49 pm
3 stops47h 29m
$1,107
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Tue 9/22
12:05 am-3:55 pm
2 stops31h 50m
Belfast Intl
Wed 9/30
5:55 am-8:59 pm
2 stops23h 04m
$1,116
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Thu 9/24
3:05 pm-9:40 pm
2 stops22h 35m
Belfast Intl
Thu 10/1
8:55 pm-11:45 am
3 stops46h 50m
$1,123
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Sun 9/27
6:00 am-8:15 pm
3 stops30h 15m
Belfast Intl
Sun 10/4
2:40 pm-4:15 pm
2 stops33h 35m
$1,172
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Fri 8/28
8:10 am-4:30 pm
2 stops24h 20m
Belfast Intl
Sat 9/5
9:40 pm-12:50 pm
3 stops47h 10m
$1,242
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Wed 1/20
7:25 pm-10:00 pm
2 stops18h 35m
Belfast Intl
Wed 2/3
8:20 am-4:30 pm
3 stops40h 10m
$1,885
Cheapest one-way
San FranciscoBelfast
SFO San Francisco - BFS Belfast Intl
SFOBFS
San Francisco
Thu 10/15
10:06 pm-4:30 pm
3 stops34h 24m
$334
Showing 1-10 of 17 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-BFS
SFO-BHD
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-BFS
SFO-BHD
No data available for this route at this time. Please check back soon.
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 August 15, 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.
Crew
7.7
Boarding
7.0
Entertainment
6.5
Comfort
6.8
Food
6.4
Overall
6.7
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - LHR
Crew
7.7
Boarding
7.0
Entertainment
6.5
Comfort
6.8
Food
6.4
Overall
6.7
Reviews
1 / 20
8.0
ExcellentLakshmi,Dec 2025
SFO - 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.
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from San Francisco
Popular flights
Alternative routes for San Francisco to Belfast
See prices for flight routes from nearby airports that may be better suited for you.
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 August 15, 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 August 15, 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 August 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$586 | Average$844 | FlexibilityNo cancel fee | On-time70% |