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$312+ Cheap flights from Fremont, CA 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Fremont to Belfast

Cheapest flights from Fremont to Belfast
Explore the most affordable flight options available from Fremont to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This oojo deal was found by Cheapflights users on 1/27. 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.
Sun 3/226:21 am
SFO
-
BHD
2 stops20h 59m
British Airways
Tue 3/318:25 pm
BHD
-
SFO
1 stop25h 25m
British Airways
Deal found 1/27$648
This British Airways deal was found by Cheapflights users on 1/27. 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 3/15:30 pm
SFO
-
BHD
1 stop17h 10m
British Airways
Tue 3/1710:00 am
BHD
-
SFO
1 stop16h 45m
British Airways
Deal found 1/27$650
This oojo deal was found by Cheapflights users on 1/27. 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.
Sun 3/156:21 am
SFO
-
BHD
2 stops20h 59m
British Airways
Tue 3/317:30 pm
BHD
-
SFO
1 stop26h 20m
British Airways
Deal found 1/27$654
This Cheapflightsfares deal was found by Cheapflights users on 1/26. 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.
Wed 8/264:35 pm
SFO
-
BHD
1 stop15h 05m
British Airways
Wed 9/28:35 pm
BHD
-
SFO
1 stop25h 15m
British Airways
Deal found 1/26$658
This British Airways deal was found by Cheapflights users on 1/27. 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 3/169:40 pm
SFO
-
BHD
1 stop13h 55m
British Airways
Tue 3/317:30 pm
BHD
-
SFO
1 stop26h 20m
British Airways
Deal found 1/27$663
This FlightHub deal was found by Cheapflights users on 1/27. 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.
Tue 3/31:50 pm
SFO
-
BHD
2 stops17h 00m
British Airways
Fri 3/136:45 am
BHD
-
SFO
1 stop16h 15m
British Airways
Deal found 1/27$667
This Delta deal was found by Cheapflights users on 1/27. 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 3/162:55 pm
SFO
-
BHD
1 stop23h 05m
Delta
Mon 3/305:30 pm
BHD
-
SFO
1 stop26h 15m
Delta
Deal found 1/27$671
This British Airways deal was found by Cheapflights users on 1/27. 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 3/156:30 pm
SFO
-
BHD
1 stop15h 20m
British Airways
Thu 4/29:35 am
BHD
-
SFO
1 stop16h 05m
British Airways
Deal found 1/27$673
This oojo deal was found by Cheapflights users on 1/27. 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.
Wed 3/46:21 am
SFO
-
BHD
2 stops19h 54m
British Airways
Sat 3/146:00 pm
BHD
-
SFO
1 stop29h 00m
British Airways
Deal found 1/27$674
This Delta deal was found by Cheapflights users on 1/27. 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.
Tue 3/1711:50 am
SFO
-
BHD
2 stops22h 00m
Delta
Mon 3/305:30 pm
BHD
-
SFO
1 stop26h 15m
Delta
Deal found 1/27$676
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Tue 3/175:30 pm
BFS
-
SFO
2 stops49h 40m
Multiple Airlines
Deal found 1/27$860
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Fri 3/139:05 pm
BFS
-
SFO
2 stops46h 05m
Multiple Airlines
Deal found 1/27$891

Find flight deals from Fremont to Belfast

Keep the following information in mind while searching for Fremont to Belfast flight deals. Data was last updated January 28, 2026.

Round-trip from

$648
(oojo)

One-way from

$312
(Kiwi.com)

Popular in

June

Cheapest in

April

Average price

$760
From Fremont to Belfast
Search Deals
One-way flight from Fremont to Belfast
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont 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 January 28, 2026.
Use the filters below to find and compare flights from Fremont to Belfast that are best for you.

Fly from

Fremont

Fly to

Belfast

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 3/2

8:40 pm-8:15 pm

1 stop15h 35m

Belfast City

Thu 3/12

10:40 am-4:00 pm

1 stop36h 20m

$650

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 3/1

5:30 pm-6:40 pm

1 stop17h 10m

Belfast City

Wed 3/11

7:25 pm-7:45 pm

1 stop31h 20m

$650

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/4

5:30 pm-4:35 pm

1 stop15h 05m

Belfast City

Fri 3/13

6:45 am-4:00 pm

1 stop16h 15m

$650

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/4

5:30 pm-4:35 pm

1 stop15h 05m

Belfast City

Wed 3/11

7:25 pm-4:00 pm

1 stop27h 35m

$650

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/4

5:30 pm-4:35 pm

1 stop15h 05m

Belfast City

Thu 3/12

3:05 pm-4:00 pm

1 stop31h 55m

$650

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/25

6:30 pm-7:10 pm

1 stop17h 40m

Belfast City

Tue 3/31

7:30 pm-1:50 pm

1 stop26h 20m

$657

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/25

6:30 pm-7:10 pm

1 stop17h 40m

Belfast City

Thu 4/2

6:30 am-1:50 pm

1 stop15h 20m

$673

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Sun 3/22

6:30 pm-4:50 pm

1 stop15h 20m

Belfast City

Thu 4/2

9:35 am-5:40 pm

1 stop16h 05m

$673

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Wed 3/4

5:30 pm-4:35 pm

1 stop15h 05m

Belfast City

Sun 3/8

10:40 am-4:00 pm

1 stop36h 20m

$677

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

Mon 3/16

6:30 pm-6:35 pm

1 stop17h 05m

Belfast City

Wed 4/1

8:35 pm-1:50 pm

1 stop25h 15m

$679

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 29 results
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Best time to book a flight from Fremont to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Fremont 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.

Cheapflights Insights

Everything you need to know about your flight from Fremont to Belfast

What is the cheapest month to book a flight from Fremont to Belfast?

Currently, April is the cheapest month in which you can book a flight from Fremont to Belfast (average of $587). Flying from Fremont to Belfast in December is currently the most expensive (average of $1,097). 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 January 28, 2026.
Read reviews from past customers who have flown British Airways from Fremont to Belfast. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,704 reviews

Food

6.4

Entertainment

6.4

Overall

6.7

Crew

7.6

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,704 reviews
British Airways
6.7
Okay
7,704 reviews

Food

6.4

Entertainment

6.4

Overall

6.7

Crew

7.6

Boarding

6.9

Comfort

6.8

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Fremont to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Fremont to Belfast?

    British Airways can get you from Fremont to Belfast in just under 15h 35m. Your travel time can differ by up to . The distance from Fremont to Belfast is about 5038 mi.

  • Can I find deals for flights from Fremont to Belfast that include hotel bookings?

    Yes. In addition to deals on Fremont to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Fremont to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Fremont to Belfast.

  • Can I find deals for business class flights from Fremont to Belfast?

    Yes. Cheapflights offers flight deals from Fremont to Belfast 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 Fremont to Belfast?

    Currently, April is the cheapest month in which you can book a flight from Fremont to Belfast (average of $587). Flying from Fremont to Belfast in December is currently the most expensive (average of $1,097). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Fremont to Belfast

Discover the top airline that operate flights from Fremont 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$785FlexibilityNo cancel feeOn-time70%

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