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Cheap flights from Belfast to Fremont from £341

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
18 May — 25 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Belfast to Fremont

Enter your travel dates to find the best prices.

Cheapest flights from Belfast to Fremont
Explore the most affordable flight options available from Belfast to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 April 2026.

Tue 12/517:30
BHD
-
SFO
1 stop26h 15m
KLM
Tue 19/506:00
SFO
-
BHD
2 stops19h 20m
KLM
Deal found 14/4£652
Thu 3/909:35
BHD
-
SFO
1 stop16h 05m
British Airways
Thu 24/916:35
SFO
-
BHD
1 stop14h 55m
British Airways
Deal found 17/4£660
Wed 2/906:30
BHD
-
SFO
1 stop19h 00m
American Airlines
Thu 24/911:30
SFO
-
BHD
2 stops20h 00m
American Airlines
Deal found 17/4£661
Tue 1/919:30
BHD
-
SFO
1 stop26h 20m
British Airways
Thu 24/916:35
SFO
-
BHD
1 stop14h 55m
British Airways
Deal found 15/4£664
Tue 1/906:30
BHD
-
SFO
2 stops19h 22m
American Airlines
Thu 24/911:30
SFO
-
BHD
2 stops20h 00m
American Airlines
Deal found 15/4£665
Tue 28/706:30
BHD
-
SFO
1 stop15h 20m
British Airways
Wed 19/816:35
SFO
-
BHD
1 stop15h 05m
British Airways
Deal found 17/4£673
Tue 2/606:40
BFS
-
SFO
3 stops39h 55m
Multiple Airlines
Tue 9/606:00
SFO
-
BFS
3 stops29h 40m
Multiple Airlines
Deal found 18/4£679
Thu 3/906:30
BHD
-
SFO
1 stop15h 20m
British Airways
Sat 26/916:35
SFO
-
BHD
1 stop14h 30m
British Airways
Deal found 15/4£690
Thu 3/909:35
BHD
-
SFO
1 stop16h 05m
American Airlines
Mon 28/916:35
SFO
-
BHD
1 stop14h 55m
American Airlines
Deal found 15/4£691
Fri 4/906:30
BHD
-
SFO
1 stop15h 20m
British Airways
Thu 24/916:35
SFO
-
BHD
1 stop14h 55m
British Airways
Deal found 17/4£693
Tue 12/506:15
BFS
-
SFO
2 stops19h 45m
Multiple Airlines
Tue 19/515:05
SFO
-
BFS
2 stops21h 50m
Multiple Airlines
Deal found 14/4£814
Sun 31/509:55
BFS
-
SFO
2 stops34h 55m
Multiple Airlines
Sun 7/615:05
SFO
-
BFS
2 stops21h 10m
Multiple Airlines
Deal found 16/4£946

Find flight deals from Belfast to Fremont

Keep the following information in mind while searching for Belfast to Fremont flight deals. Data was last updated 18 April 2026.

Round-trip from

£652

One-way from

£341

Popular in

March

Cheapest in

September

Average price

£582
KLM
  • KLM
  • 12/5-19/5
  • 3 total stops
  • 45h 35m total
  • Belfast to Fremont
Search Deals
1/9
  • 1/9
  • 3 total stops
  • 39h 00m total
  • Belfast to Fremont
Search Deals
Highest demand for flights based on searches. 22% potential increase in price (£151 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 9% potential price decrease (£47 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Fremont 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 858,174 searches. Data last updated 18 April 2026.
Use the filters below to find and compare flights from Belfast to Fremont that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/9

06:30-13:50

1 stop15h 20m

San Francisco

Thu 24/9

16:35-15:30

1 stop14h 55m

£664

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/9

06:30-13:50

1 stop15h 20m

San Francisco

Mon 28/9

16:35-17:30

1 stop16h 55m

£664

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Tue 2/6

06:40-14:35

3 stops39h 55m

San Francisco

Tue 9/6

06:00-19:40

3 stops29h 40m

£679

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Thu 24/9

16:35-15:30

1 stop14h 55m

£693

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 2/9

06:30-13:50

1 stop15h 20m

San Francisco

Fri 25/9

16:35-18:10

1 stop17h 35m

£723
Fastest return journey

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Sun 27/9

16:35-14:35

1 stop14h 00m

£724

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

09:50-21:35

2 stops19h 45m

San Francisco

Sat 26/9

14:25-16:55

2 stops18h 30m

£742

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 27/8

06:30-17:40

1 stop19h 10m

San Francisco

Mon 31/8

14:08-17:30

2 stops19h 22m

£749

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 1/5

09:35-20:50

2 stops19h 15m

San Francisco

Mon 4/5

16:15-20:35

2 stops20h 20m

£752

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Fri 4/9

06:30-13:50

1 stop15h 20m

San Francisco

Fri 25/9

16:35-15:30

1 stop14h 55m

£754

Flights are sorted by cheapest return flights first.

Deals found on 14/4

Showing 1-10 of 22 resultsSorted by cheapest first
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3

Best time to book a flight from Belfast to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Belfast with our price prediction graph.
Estimated return 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 Belfast to Fremont

How much does it cost for a return flight from Belfast to Fremont?

Reviews of airlines servicing Fremont

Get insights into the airlines that provide service to Fremont. 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 Fremont. Reviews last updated 18 April 2026.
Read reviews from past customers who have flown with American Airlines and British Airways from Belfast to Fremont. 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.
American Airlines
7.1
Good
11,610 reviews
Check prices

Overall

7.1

Food

6.4

Crew

7.9

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
American Airlines
7.1
Good
11,610 reviews
American Airlines
7.1
Good
11,610 reviews
Check prices

Overall

7.1

Food

6.4

Crew

7.9

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes
British Airways
6.7
Okay
7,891 reviews
American Airlines
7.1
Good
11,610 reviews
Check prices

Overall

7.1

Food

6.4

Crew

7.9

Boarding

7.5

Entertainment

6.9

Comfort

7.2

Reviews

1 / 20
2.0
Mediocre

Anonymous,Mar 2026

MIA - SFO

Horrible. When they power flights for other airlines there is nothing they can do to change or accommodate any changes

Related info for your journey

Find useful and relevant information for your journey from Belfast to Fremont. 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 Belfast to Fremont?

    Airlines like British Airways fly from Belfast to Fremont in about 15h 20m. The time it takes to get you to your destination can typically vary by up to . The distance between Belfast and Fremont is about 5038 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast to Fremont by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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 Belfast to Fremont

Discover the top 2 airlines that operate flights from Belfast to Fremont. 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 858,174 searches. Data last updated 18 April 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£423Average£560FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£468Average£519FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Fremont?

Deals for Belfast to Fremont flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Fremont?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Fremont from Belfast.

Can Cheapflights find flights from Belfast to Fremont with no change fees?

Certainly. Search results for flights to Fremont from Belfast shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Belfast to Fremont become cheaper?

Yes! Start tracking prices for Belfast to Fremont flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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