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Belfast Intl

$817+ Cheap flights from Fremont, CA to Belfast Intl (BFS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Find flight deals from Fremont to Belfast Intl

Cheapest flights from Fremont to Belfast Intl
Explore the most affordable flight options available from Fremont to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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.
Tue 11/258:25 amSFO - BFS
2 stops29h 15mMultiple Airlines
Tue 12/25:30 pmBFS - SFO
2 stops27h 10mMultiple Airlines
Deal found 10/28$817
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 10/308:55 pmSFO - BFS
1 stop18h 10mMultiple Airlines
Tue 12/28:55 pmBFS - SFO
2 stops31h 15mMultiple Airlines
Deal found 10/28$887
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Thu 10/308:55 pmSFO - BFS
1 stop18h 10mMultiple Airlines
Thu 11/69:00 pmBFS - SFO
2 stops31h 10mMultiple Airlines
Deal found 10/28$957

Cheap flight deals from Fremont to Belfast Intl

Keep the following information in mind while searching for Fremont to Belfast Intl flight deals. Data was last updated October 30, 2025.

Round-trip from

$817
(Mytrip)

Popular in

January

Cheapest in

April

Average price

$651
From Fremont to Belfast Intl
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($43 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Belfast Intl 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 October 30, 2025.
Use the filters below to find and compare flights from Fremont to Belfast Intl Airport that are best for you.

Fly from

Fremont

Fly to

Belfast Intl

Route

Depart

Return

Price

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 11/25

8:25 am-9:40 pm

2 stops29h 15m

Belfast Intl

Tue 12/2

5:30 pm-12:40 pm

2 stops27h 10m

$817

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 12/16

5:20 pm-10:35 pm

2 stops21h 15m

Belfast Intl

Tue 12/30

6:30 am-3:35 pm

2 stops17h 05m

$1,463

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Best time to book a flight from Fremont to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport

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

Currently, April is the cheapest month in which you can book a flight from Fremont to Belfast Intl Airport (average of $587). Flying from Fremont to Belfast Intl Airport in January is currently the most expensive (average of $1,339). 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 Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Fremont to Belfast Intl Airport in the afternoon. Doing so could potentially save you 31% on the flight price compared to flying at noon, which is usually more expensive.

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Intl. Reviews last updated October 30, 2025.
Read through reviews of airlines operating flights from Fremont to Belfast Intl Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,487 reviews

Overall

6.7

Boarding

6.9

Comfort

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,487 reviews
British Airways
6.7
Okay
7,487 reviews

Overall

6.7

Boarding

6.9

Comfort

6.7

Crew

7.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

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

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Fremont to Belfast Intl Airport (average of $587). Flying from Fremont to Belfast Intl Airport in January is currently the most expensive (average of $1,339). 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 Intl

Discover the top airline that operate flights from Fremont to Belfast Intl. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$621Average$769FlexibilityNo cancel feeOn-time70%

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