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Cheap flights from Belfast to Fremont from £586

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — SFO
13 Nov — 20 Nov1
1 adult
1 adult, Economy

Find 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 14 October 2025.

Wed 26/1120:55BFS - SFO
2 stops22h 55mMultiple Airlines
Wed 3/1219:25SFO - BFS
2 stops18h 55mMultiple Airlines
Deal found 12/10£936

Cheap flight deals from Belfast to Fremont

Keep the following information in mind while searching for Belfast to Fremont flight deals. Data was last updated 14 October 2025.

Round-trip from

£485

Popular in

July

Cheapest in

January

Average price

£632
8/11-15/11
  • 8/11-15/11
  • 4 total stops
  • 82h 30m total
  • Belfast to Fremont
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£47 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
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 14 October 2025.
Use the filters below to find and compare flights from Belfast to Fremont that are best for you.

Fly from

Belfast

Fly to

Fremont

Route

Depart

Return

Price

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Wed 4/3

09:15-18:45

1 stop17h 30m

San Francisco

Sun 8/3

13:25-13:55

2 stops17h 30m

£586

BelfastSan Francisco

BHD - SFO

BHDSFO

Belfast City

Thu 5/3

10:40-18:45

1 stop16h 05m

San Francisco

Mon 9/3

13:25-14:15

2 stops17h 50m

£601

BelfastSan Francisco

BFS - SFO

BFSSFO

Belfast Intl

Wed 26/11

20:55-11:50

2 stops22h 55m

San Francisco

Wed 3/12

19:25-22:20

2 stops18h 55m

£936

Flights are sorted by cheapest return flights first.

Deals found on 13/10

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

What is the cheapest time of day to fly from BFS to FR8?

Find hourly flight availability from Belfast to Fremont. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 14 October 2025.

It’s optimal to fly from Belfast to Fremont in the morning. By choosing this option you can save up to 8% on the cost of your flight, compared to a flight in the afternoon.

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 14 October 2025.
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
7.2
Good
11,045 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
American Airlines
7.2
Good
11,045 reviews
American Airlines
7.2
Good
11,045 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.
British Airways
6.7
Okay
7,453 reviews
American Airlines
7.2
Good
11,045 reviews
Check prices

Comfort

7.2

Entertainment

6.9

Overall

7.2

Boarding

7.5

Food

6.4

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2024

LHR - SAN

This was the best flight I have experienced in all the years I have been f doing this journey with BA. Flight, food and service A1. Well done BA.

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 American Airlines fly from Belfast to Fremont in about 17h 30m. 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

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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 14 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£399Average£577FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£475Average£526FlexibilityNo 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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