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Belfast Intl

$444+ Cheap flights from Fremont, CA to Belfast Intl (BFS)

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 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — BFS
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap 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 January 28, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Tue 3/175:30 pm
BFS
-
SFO
2 stops49h 40m
Multiple Airlines
Deal found 1/27$860
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Fri 3/139:05 pm
BFS
-
SFO
2 stops46h 05m
Multiple Airlines
Deal found 1/27$891
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Wed 3/118:35 am
BFS
-
SFO
2 stops22h 29m
Multiple Airlines
Deal found 1/27$898
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Mon 3/27:00 am
SFO
-
BFS
2 stops25h 15m
Multiple Airlines
Wed 3/1110:10 am
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 1/27$911
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Mon 3/166:30 am
BFS
-
SFO
2 stops21h 05m
Multiple Airlines
Deal found 1/27$929
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Fri 3/138:55 pm
SFO
-
BFS
2 stops19h 55m
Multiple Airlines
Fri 3/207:50 am
BFS
-
SFO
3 stops38h 55m
Multiple Airlines
Deal found 1/27$950
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Sun 3/16:29 am
SFO
-
BFS
2 stops22h 26m
Multiple Airlines
Wed 3/1110:10 am
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 1/27$954
This Kiwi.com deal was found by Cheapflights users on 1/27. 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 3/54:40 pm
SFO
-
BFS
2 stops21h 40m
Multiple Airlines
Wed 3/1110:10 am
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 1/27$985
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Fri 3/67:55 pm
SFO
-
BFS
2 stops19h 55m
Multiple Airlines
Wed 3/1110:10 am
BFS
-
SFO
1 stop18h 00m
Multiple Airlines
Deal found 1/27$989
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
Tue 3/37:55 pm
SFO
-
BFS
1 stop17h 45m
Multiple Airlines
Thu 3/126:30 am
BFS
-
SFO
2 stops21h 05m
Multiple Airlines
Deal found 1/27$1,009
This Mytrip deal was found by Cheapflights users on 1/26. 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.
Thu 5/286:00 am
SFO
-
BFS
3 stops21h 50m
Multiple Airlines
Sat 6/67:40 am
BFS
-
SFO
3 stops38h 50m
Multiple Airlines
Deal found 1/26$1,100

Find 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 January 28, 2026.

Round-trip from

$860
(Kiwi.com)

One-way from

$444
(Trip.com)

Popular in

June

Cheapest in

April

Average price

$760
From Fremont to Belfast Intl
Search Deals
One-way flight from Fremont to Belfast Intl
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($120 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 28, 2026.
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 3/3

7:55 pm-9:40 pm

1 stop17h 45m

Belfast Intl

Fri 3/13

9:05 pm-12:10 pm

2 stops46h 05m

$891

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 3/3

7:55 pm-9:40 pm

1 stop17h 45m

Belfast Intl

Wed 3/11

8:35 am-12:04 am

2 stops22h 29m

$898

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Mon 3/2

7:00 am-4:15 pm

2 stops25h 15m

Belfast Intl

Wed 3/11

10:10 am-9:10 pm

1 stop18h 00m

$911

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 3/13

8:55 pm-11:50 pm

2 stops19h 55m

Belfast Intl

Fri 3/20

7:50 am-3:45 pm

3 stops38h 55m

$950

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 3/5

4:40 pm-10:20 pm

2 stops21h 40m

Belfast Intl

Wed 3/11

10:10 am-9:10 pm

1 stop18h 00m

$985

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Fri 3/6

7:55 pm-11:50 pm

2 stops19h 55m

Belfast Intl

Wed 3/11

10:10 am-9:10 pm

1 stop18h 00m

$989

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Thu 5/28

6:00 am-11:50 am

3 stops21h 50m

Belfast Intl

Sat 6/6

8:15 pm-4:15 pm

2 stops28h 00m

$1,127

San FranciscoBelfast

SFO - BFS

SFOBFS

San Francisco

Tue 2/17

5:30 pm-8:15 pm

1 stop18h 45m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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 June is currently the most expensive (average of $1,217). 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.

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 January 28, 2026.
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
7,704 reviews

Food

6.4

Boarding

6.9

Crew

7.6

Entertainment

6.4

Comfort

6.8

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,704 reviews
British Airways
6.7
Okay
7,704 reviews

Food

6.4

Boarding

6.9

Crew

7.6

Entertainment

6.4

Comfort

6.8

Overall

6.7

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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 June is currently the most expensive (average of $1,217). 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 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$586Average$766FlexibilityNo cancel feeOn-time70%

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