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$298+ Cheap flights from San Francisco (SFO) to Northern Ireland

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 4/1. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
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Cheap flight deals from San Francisco to Northern Ireland

Keep the following information in mind while searching for San Francisco to Northern Ireland flight deals. Data was last updated febrero 20, 2025.

Round-trip from

$709
(oojo)

One-way from

$298
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$704
From San Francisco to Northern Ireland
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One-way flight from San Francisco to Northern Ireland
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Highest demand for flights based on searches. 11% potential increase in price ($130 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from San Francisco to Northern Ireland

Cheapest flights from San Francisco to Northern Ireland
Explore the most affordable flight options available from San Francisco to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This oojo deal was found by Cheapflights users on 2/18. 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.
dom. 4/277:20 pmSFO - BHD
1 stop15h 25mBritish Airways
lun. 5/126:30 pmBHD - SFO
2 stops29h 40mBritish Airways
Deal found 2/18$635
This Expedia deal was found by Cheapflights users on 2/18. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 4/274:35 pmSFO - BHD
1 stop14h 05mIberia
lun. 5/129:50 amBHD - SFO
1 stop36h 00mIberia
Deal found 2/18$640
This American Airlines deal was found by Cheapflights users on 2/19. 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.
sáb. 5/33:54 pmSFO - BHD
2 stops17h 21mMultiple Airlines
sáb. 5/107:00 pmBHD - SFO
1 stop26h 50mMultiple Airlines
Deal found 2/19$719
This Mytrip deal was found by Cheapflights users on 2/18. 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.
dom. 4/272:40 pmSFO - BFS
2 stops22h 50mMultiple Airlines
lun. 5/1210:35 amBFS - SFO
3 stops42h 50mMultiple Airlines
Deal found 2/18$940
This KLM deal was found by Cheapflights users on 2/19. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 3/61:50 pmSFO - BHD
1 stop23h 10mKLM
sáb. 3/155:20 pmBHD - SFO
1 stop26h 30mKLM
Deal found 2/19$1,023

Find flights from San Francisco to Northern Ireland within your budget

Customize your flight search to find flights from San Francisco to Northern Ireland 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 febrero 20, 2025.

Fly from

San Francisco

Fly to

Northern Ireland

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 4/27

7:20 pm-6:45 pm

1 stop15h 25m

Belfast City

lun. 5/12

6:30 pm-4:10 pm

2 stops29h 40m

$635

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom. 4/27

4:35 pm-2:40 pm

1 stop14h 05m

Belfast City

lun. 5/12

9:50 am-1:50 pm

1 stop36h 00m

$640

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

sáb. 5/3

3:54 pm-5:15 pm

2 stops17h 21m

Belfast City

sáb. 5/10

7:00 pm-1:50 pm

1 stop26h 50m

$719

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

dom. 4/27

2:40 pm-9:30 pm

2 stops22h 50m

Belfast Intl

lun. 5/12

10:35 am-9:25 pm

3 stops42h 50m

$940

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

jue. 3/6

1:50 pm-9:00 pm

1 stop23h 10m

Belfast City

sáb. 3/15

5:20 pm-12:50 pm

1 stop26h 30m

$1,023

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Best time to book a flight from San Francisco to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from San Francisco 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 San Francisco to Northern Ireland

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

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

Currently, February is the cheapest month in which you can book a flight from San Francisco to Northern Ireland (average of $657). Flying from San Francisco to Northern Ireland in June is currently the most expensive (average of $1,189). 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.

What is the cheapest time of day to fly from SFO to NIR?

Find hourly flight availability from San Francisco to Northern Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated febrero 20, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Northern Ireland as you normally would.

Rainfall in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Northern Ireland ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Northern Ireland when rainfall is around 2.0 in.

Temperature in Northern Ireland by month

Plan your trip to Northern Ireland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Northern Ireland, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated febrero 20, 2025.
KLM
7.8
Good
1,333 reviews

Food

7.3

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews

Food

7.3

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Iberia
7.0
Good
2,639 reviews
KLM
7.8
Good
1,333 reviews

Food

7.3

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

British Airways
6.6
Okay
6,762 reviews
KLM
7.8
Good
1,333 reviews

Food

7.3

Crew

8.4

Entertainment

7.2

Boarding

7.8

Comfort

7.7

Overall

7.8

Reviews

1 / 20

8.0
Excellent

Anonymous,Dec 2024

YWG - YYZ

I could not select a seat prior to check in as systems not integrated. Different PNRs should be on reservation which would make process easier.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Northern Ireland. 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 from for flights from San Francisco to Northern Ireland?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to Northern Ireland. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

  • What are the cheapest airlines to fly from San Francisco to Northern Ireland one-way?

    $398 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on KLM and Iberia, with prices starting from $667 and $1,034, respectively.

  • What are the most popular routes from San Francisco to Northern Ireland?

    The most popular flight routes from San Francisco to Northern Ireland are San Francisco - Belfast Intl, San Francisco - Belfast City and San Francisco - Campbeltown Machrihanish.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from San Francisco to Northern Ireland 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 San Francisco to Northern Ireland?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to Northern Ireland (average of $657). Flying from San Francisco to Northern Ireland in June is currently the most expensive (average of $1,189). 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.

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Alternative routes for San Francisco to Northern Ireland

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Top 2 airlines flying from San Francisco to Northern Ireland

Discover the top 2 airlines that operate flights from San Francisco to Northern Ireland. 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 febrero 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$493Average$900FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$596Average$789FlexibilityNo cancel feeOn-time70%
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