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Cheap flights from Belfast to Fremont from £520

BHD — SFO
22 Sep — 29 Sep1
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

Sun 4/1017:30 -
1 stop26h 15m
Sun 11/1013:45 -
1 stop19h 10m
Deal found 20/8£648
Mon 5/1014:20 -
3 stops32h 20m
Mon 12/1016:45 -
2 stops20h 10m
Deal found 21/8£660
Tue 15/917:30 -
1 stop26h 15m
Tue 22/913:45 -
1 stop19h 10m
Deal found 18/8£662
Tue 15/917:30 -
1 stop26h 15m
Tue 22/909:00 -
2 stops23h 55m
Deal found 18/8£662
Thu 17/917:30 -
1 stop26h 15m
Thu 24/914:15 -
2 stops18h 40m
Deal found 20/8£664
Wed 16/917:30 -
1 stop26h 15m
Wed 23/906:35 -
2 stops18h 45m
Deal found 18/8£665
Mon 7/917:30 -
1 stop26h 15m
Mon 14/913:45 -
1 stop19h 10m
Deal found 22/8£667
Sat 19/917:30 -
2 stops30h 24m
Sat 26/913:45 -
1 stop19h 10m
Deal found 22/8£671
Tue 10/1109:40 -
2 stops41h 55m
Fri 20/1120:59 -
2 stops52h 11m
Deal found 21/8£679
Tue 15/906:15 -
2 stops18h 00m
Tue 22/919:35 -
2 stops17h 30m
Deal found 18/8£758
Tue 10/1117:05 -
3 stops29h 40m
Fri 20/1108:40 -
2 stops28h 00m
Deal found 21/8£766
Mon 7/910:50 -
2 stops32h 55m
Mon 14/920:10 -
2 stops18h 55m
Deal found 22/8£780

Find flight deals from Belfast to Fremont

Round-trip from

£585

One-way from

£520

Popular in

March

Cheapest in

May

Average price

£772
8/1-12/1
  • 8/1-12/1
  • 4 total stops
  • 63h 21m total
  • Belfast to Fremont
Search Deals
Aer Lingus
  • Aer Lingus
  • 1/9
  • 2 total stops
  • 16h 55m total
  • Belfast to Fremont
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£115 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease (£41 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
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

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Fri 8/1

19:25-14:50

2 stops51h 25m

San Francisco

Tue 12/1

16:40-20:30

1 stop19h 50m

£592

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 5/10

14:20-14:40

3 stops32h 20m

San Francisco

Mon 12/10

16:45-20:55

2 stops20h 10m

£660

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 7/9

17:30-11:45

1 stop26h 15m

San Francisco

Mon 14/9

13:45-16:55

1 stop19h 10m

£667

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 7/9

17:30-11:45

1 stop26h 15m

San Francisco

Sun 13/9

00:05-09:20

2 stops25h 15m

£667

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 17/9

09:50-23:51

2 stops22h 01m

San Francisco

Thu 24/9

10:29-16:55

2 stops22h 26m

£668

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Mon 7/9

17:30-15:54

2 stops30h 24m

San Francisco

Mon 14/9

15:16-16:55

2 stops17h 39m

£671

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Wed 14/10

06:30-13:50

1 stop15h 20m

San Francisco

Sun 18/10

06:00-10:30

2 stops20h 30m

£680

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 5/11

06:30-14:55

1 stop16h 25m

San Francisco

Sun 8/11

14:07-16:50

2 stops18h 43m

£680
Fastest return journey

BelfastSan Francisco

BHD Belfast City - SFO San Francisco

BHDSFO

Belfast City

Thu 3/9

06:30-17:40

1 stop19h 10m

San Francisco

Mon 7/9

19:30-19:25

1 stop15h 55m

£682

BelfastSan Francisco

BFS Belfast Intl - SFO San Francisco

BFSSFO

Belfast Intl

Mon 7/9

10:50-11:45

2 stops32h 55m

San Francisco

Mon 14/9

20:10-23:05

2 stops18h 55m

£780

Flights are sorted by cheapest return flights first.

Deals found on 21/8

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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

Cheapflights Insights

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Fremont

Read reviews from past customers who have flown with 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.
British Airways
6.7
Okay
8,184 reviews
Check prices

Crew

7.7

Overall

6.7

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Food

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
8,184 reviews
British Airways
6.7
Okay
8,184 reviews
Check prices

Crew

7.7

Overall

6.7

Comfort

6.8

Boarding

7.0

Entertainment

6.5

Food

6.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

  • How long is the flight from Belfast to Fremont?

    Airlines like Virgin Atlantic, Delta, and KLM fly from Belfast to Fremont in about 26h 15m. The time it takes to get you to your destination can typically vary by up to 4h 09m. The distance between Belfast and Fremont is about 5038 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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

Top airline flying from Belfast to Fremont

AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£513Average£635FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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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.

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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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