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$384+ 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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BHD
ago 5 — ago 121
ter 8/5
ter 8/12
1 adult, Economy
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Cheap flight deals from Fremont to Belfast

Keep the following information in mind while searching for Fremont to Belfast flight deals. Data was last updated julho 31, 2025.

Round-trip from

$655
(Trip.com)

One-way from

$384
(Kiwi.com)

Popular in

January

Cheapest in

October

Average price

$1,167
From Fremont to Belfast
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One-way flight from Fremont to Belfast
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Highest demand for flights based on searches. 14% potential increase in price ($155 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find 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 julho 31, 2025.

This Trip.com deal was found by Cheapflights users on 7/31. 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.
dom 9/214:05 pmSFO - BFS
1 stop22h 20mMultiple Airlines
seg 10/67:00 amBFS - SFO
1 stop20h 30mMultiple Airlines
Deal found 7/31$655
This American Airlines deal was found by Cheapflights users on 7/31. 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.
dom 9/219:07 amSFO - BHD
2 stops18h 23mAmerican Airlines
seg 10/612:15 pmBHD - SFO
2 stops18h 48mAmerican Airlines
Deal found 7/31$667
This lastminute.com deal was found by Cheapflights users on 7/31. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom 9/211:45 pmSFO - BHD
1 stop19h 10mVirgin Atlantic
seg 10/65:25 pmBHD - SFO
1 stop26h 20mVirgin Atlantic
Deal found 7/31$675
This KLM deal was found by Cheapflights users on 7/31. 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.
dom 9/211:45 pmSFO - BHD
1 stop19h 10mKLM
seg 10/65:25 pmBHD - SFO
1 stop26h 20mKLM
Deal found 7/31$709
This Delta deal was found by Cheapflights users on 7/29. 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.
qua 12/31:55 pmSFO - BHD
1 stop18h 55mDelta
dom 12/76:30 amBHD - SFO
1 stop13h 20mDelta
Deal found 7/29$737
This Mytrip deal was found by Cheapflights users on 7/31. 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 9/218:30 amSFO - BHD
3 stops28h 25mMultiple Airlines
seg 10/63:15 pmBHD - SFO
2 stops32h 55mMultiple Airlines
Deal found 7/31$803
This Expedia deal was found by Cheapflights users on 7/31. 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.
sex 8/111:59 pmSFO - BHD
2 stops33h 16mBritish Airways
sex 8/156:35 amBHD - SFO
2 stops19h 35mBritish Airways
Deal found 7/31$861
This Ovago deal was found by Cheapflights users on 7/31. 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.
sex 8/17:20 pmSFO - BHD
1 stop30h 50mFinnair
dom 8/178:05 pmBHD - SFO
1 stop25h 45mFinnair
Deal found 7/31$3,810
This AranGrant deal was found by Cheapflights users on 7/31. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 10/77:20 pmSFO - BHD
1 stop14h 10mIberia
sex 10/249:30 amBHD - SFO
1 stop15h 55mIberia
Deal found 7/31$5,607

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 julho 31, 2025.
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 - BFS

SFOBFS

San Francisco

dom 9/21

4:05 pm-10:25 pm

1 stop22h 20m

Belfast Intl

seg 10/6

7:00 am-7:30 pm

1 stop20h 30m

$655

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom 9/21

9:07 am-11:30 am

2 stops18h 23m

Belfast City

seg 10/6

12:15 pm-11:03 pm

2 stops18h 48m

$667

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom 9/21

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

seg 10/6

5:25 pm-11:45 am

1 stop26h 20m

$675

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom 9/21

1:45 pm-4:55 pm

1 stop19h 10m

Belfast City

seg 10/6

5:25 pm-11:45 am

1 stop26h 20m

$709

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

qua 12/3

1:55 pm-4:50 pm

1 stop18h 55m

Belfast City

dom 12/7

6:30 am-11:50 am

1 stop13h 20m

$737

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

dom 9/21

8:30 am-8:55 pm

3 stops28h 25m

Belfast City

seg 10/6

3:15 pm-4:10 pm

2 stops32h 55m

$803

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

ter 10/7

10:16 am-1:00 pm

2 stops18h 44m

Belfast City

sex 10/24

11:55 am-11:28 pm

2 stops19h 33m

$4,281

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

ter 10/7

7:20 pm-5:30 pm

1 stop14h 10m

Belfast City

sex 10/24

9:30 am-5:25 pm

1 stop15h 55m

$5,607

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

qui 8/14

10:07 pm-8:00 am

2 stops49h 53m

$384

San FranciscoBelfast

SFO - BHD

SFOBHD

San Francisco

qui 8/14

11:20 am-10:35 am

2 stops39h 15m

$410

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 14 results
1
2

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, February is the cheapest month in which you can book a flight from Fremont to Belfast (average of $657). Flying from Fremont to Belfast 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 FR8 to BFS?

Find hourly flight availability from Fremont to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julho 31, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Fremont to Belfast as you normally would.

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 julho 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and Virgin Atlantic 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.
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Entertainment

7.9

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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.

  • What are the cheapest airlines to fly from Fremont to Belfast one-way?

    The cheapest airlines for a one-way flight from Fremont to Belfast are Virgin Atlantic ($434), KLM ($438), and Aer Lingus ($4,606).

  • 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, February is the cheapest month in which you can book a flight from Fremont to Belfast (average of $657). Flying from Fremont to Belfast 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.

See more FAQs

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.

Top 2 airlines flying from Fremont to Belfast

Discover the top 2 airlines 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 julho 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$588Average$754FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$635Average$840FlexibilityNo cancel feeOn-time71%

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