How long is the flight from Portsmouth to Fremont?

Departing from Portsmouth to Fremont will take you 25h 45m. The distance from Portsmouth to Fremont is about 5349 mi. Both multi-stop and direct flights can be found to your destination and back.

In terms of precipitation, rainfall in Fremont ranges from 0.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. July is typically the driest time to visit Fremont when rainfall is around 0.0 mm.

If weather is an important factor for your trip to Fremont, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 11.0 C).

What are the cheapest flights from Portsmouth to Fremont?

The cheapest flight price from Portsmouth to Fremont is £331. On average you can expect to pay £2,200. The most popular route, (Southampton Eastleigh - San Francisco), can usually be booked for £486.

What are the most reliable airlines from Portsmouth to Fremont?

Before booking your flight to Fremont from Portsmouth, check out the most reliable airlines to get you to your destination on time: Air New Zealand (84%), Air Canada (82%), Austrian Airlines( 82%).

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

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

How can I find direct flights from Portsmouth to Fremont?

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

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

Yes. Cheapflights offers flight deals from Portsmouth 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.

£480+ Cheap Flights from Portsmouth to Fremont

Cheap flight deals from Portsmouth to Fremont

Round-trip from	£486
One-way from	£480
Popular in	July
Cheapest in	September
Average price	£463

Virgin Atlantic
4/12-8/12
2 total stops
44h 50m total
Portsmouth to Fremont

Search Deals

British Airways
12/4
1 total stop
14h 35m total
Portsmouth to Fremont

Search Deals

Highest demand for flights based on searches. 14% potential increase in price (£65 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 2025

Search Deals

Find flight deals from Portsmouth to Fremont

Enter your travel dates to find the best prices.

Cheapest flights from Portsmouth to Fremont
Explore the most affordable flight options available from Portsmouth to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Thu 4/1218:05SOU - SFO

1 stop25h 45mVirgin Atlantic

Mon 8/1213:55SFO - SOU

1 stop19h 05mVirgin Atlantic

Deal found 3/11£486

Thu 4/1218:05SOU - SFO

1 stop25h 45mKLM

Mon 8/1214:00SFO - SOU

2 stops19h 00mKLM

Deal found 3/11£500

Wed 3/1217:30SOU - SFO

1 stop26h 20mVirgin Atlantic

Fri 12/1213:55SFO - SOU

1 stop19h 05mVirgin Atlantic

Deal found 4/11£638

Thu 18/1218:05SOU - SFO

2 stops27h 20mKLM

Thu 25/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 2/11£649

Wed 3/1208:40SOU - SFO

2 stops19h 48mKLM

Fri 12/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 4/11£651

Wed 3/1208:40SOU - SFO

2 stops19h 48mMultiple Airlines

Fri 12/1205:55SFO - SOU

2 stops27h 05mMultiple Airlines

Deal found 4/11£667

Fri 19/1217:30SOU - SFO

2 stops27h 55mKLM

Fri 26/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 3/11£854

Wed 3/1214:25SOU - SFO

3 stops32h 35mBritish Airways

Fri 12/1217:30SFO - SOU

2 stops31h 15mBritish Airways

Deal found 4/11£885

Best flights from Portsmouth to Fremont
Discover carefully curated flight deals from Portsmouth to Fremont that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 November 2025.

Thu 4/1218:05SOU - SFO

1 stop25h 45mVirgin Atlantic

Mon 8/1213:55SFO - SOU

1 stop19h 05mVirgin Atlantic

Deal found 3/11£486

Thu 4/1218:05SOU - SFO

1 stop25h 45mKLM

Mon 8/1214:00SFO - SOU

2 stops19h 00mKLM

Deal found 3/11£500

Fri 27/317:30SOU - SFO

1 stop26h 20mDelta

Tue 31/313:45SFO - SOU

1 stop19h 15mDelta

Deal found 2/11£506

Fri 27/308:40SOU - SFO

2 stops21h 35mVirgin Atlantic

Tue 31/313:45SFO - SOU

1 stop35h 00mVirgin Atlantic

Deal found 4/11£507

Last-minute flights from Portsmouth to Fremont
Discover last-minute flight deals from Portsmouth to Fremont. Data last updated 5 November 2025 and is based on user searches.

Wed 3/1217:30SOU - SFO

1 stop26h 20mVirgin Atlantic

Fri 12/1213:55SFO - SOU

1 stop19h 05mVirgin Atlantic

Deal found 4/11£638

Wed 3/1208:40SOU - SFO

2 stops19h 48mKLM

Fri 12/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 4/11£651

Wed 3/1208:40SOU - SFO

2 stops19h 48mMultiple Airlines

Fri 12/1205:55SFO - SOU

2 stops27h 05mMultiple Airlines

Deal found 4/11£667

Wed 3/1214:25SOU - SFO

3 stops32h 35mBritish Airways

Fri 12/1217:30SFO - SOU

2 stops31h 15mBritish Airways

Deal found 4/11£885

Thu 4/1218:05SOU - SFO

1 stop25h 45mVirgin Atlantic

Mon 8/1213:55SFO - SOU

1 stop19h 05mVirgin Atlantic

Deal found 3/11£486

Thu 4/1218:05SOU - SFO

1 stop25h 45mKLM

Mon 8/1214:00SFO - SOU

2 stops19h 00mKLM

Deal found 3/11£500

Thu 18/1218:05SOU - SFO

2 stops27h 20mKLM

Thu 25/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 2/11£649

Fri 19/1217:30SOU - SFO

2 stops27h 55mKLM

Fri 26/1213:55SFO - SOU

1 stop34h 55mKLM

Deal found 3/11£854

One-way flights from Portsmouth to Fremont
Search for one-way flight options from Portsmouth to Fremont. Find affordable one-way fares based on user searches. Data last updated 5 November 2025.

Sun 12/409:10SOU - SFO

1 stop14h 35mBritish Airways

Deal found 4/11£480

Tue 9/1220:50SOU - SFO

2 stops26h 10mBritish Airways

Deal found 3/11£548

Mon 29/1209:30SOU - SFO

1 stop14h 05mBritish Airways

Deal found 5/11£571

Sun 28/1216:05SOU - SFO

1 stop31h 30mBritish Airways

Deal found 4/11£580

Tue 23/1219:55SOU - SFO

2 stops30h 50mBritish Airways

Deal found 4/11£597

Mon 17/1109:30SOU - SFO

1 stop14h 05mBritish Airways

Deal found 3/11£617

Mon 24/1109:30SOU - SFO

1 stop14h 05mBritish Airways

Deal found 4/11£617

Sun 16/1120:10SOU - SFO

1 stop27h 25mBritish Airways

Deal found 3/11£623

Tue 18/1120:50SOU - SFO

2 stops26h 10mBritish Airways

Deal found 4/11£639

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Thu 4/12

18:05-11:50

1 stop25h 45m

San Francisco

Mon 8/12

13:55-17:00

1 stop19h 05m

£486

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Thu 4/12

18:05-11:50

1 stop25h 45m

San Francisco

Mon 8/12

14:00-17:00

2 stops19h 00m

£500

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 27/3

17:30-12:50

1 stop26h 20m

San Francisco

Tue 31/3

13:45-17:00

1 stop19h 15m

£506

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 27/3

08:40-23:15

2 stops21h 35m

San Francisco

Tue 31/3

13:45-08:45

1 stop35h 00m

£507

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sun 12/4

09:10-15:45

1 stop14h 35m

£480

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Tue 9/12

20:50-15:00

2 stops26h 10m

£548

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sun 28/12

16:05-15:35

1 stop31h 30m

£580

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Tue 23/12

19:55-18:45

2 stops30h 50m

£597

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Mon 17/11

09:30-15:35

1 stop14h 05m

£617

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Mon 24/11

09:30-15:35

1 stop14h 05m

£617

Flights are sorted by cheapest return flights first.

Deals found on 4/11

Showing 1-10 of 11 results

Best time to book a flight from Portsmouth to Fremont

Have a flexible travel schedule? Discover the best time to fly to Fremont from Portsmouth 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 Portsmouth to Fremont

What is the cheapest month to book a flight from Portsmouth to Fremont?

Currently, December is the cheapest month in which you can book a flight from Portsmouth to Fremont (average of £346). Flying from Portsmouth to Fremont in July is currently the most expensive (average of £469). 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 P0R to FR8?

Unlike at midday, when flights are generally more expensive, you can save up to 19% on flights from Portsmouth to Fremont by exploring options for tickets in the evening.

What is the cheapest day to fly from Portsmouth to Fremont?

Travellers seeking maximum savings on their Portsmouth to Fremont flight should consider departing on Friday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to Fremont

The most flights from P0R to FR8 are scheduled on a Monday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (31 on average).

Related info for your journey

How long is the flight from Portsmouth to Fremont?
Departing from Portsmouth to Fremont will take you 25h 45m. The distance from Portsmouth to Fremont is about 5349 mi. Both multi-stop and direct flights can be found to your destination and back.
What are the most reliable airlines from Portsmouth to Fremont?
Before booking your flight to Fremont from Portsmouth, check out the most reliable airlines to get you to your destination on time: Air New Zealand (84%), Air Canada (82%), Austrian Airlines( 82%).
What are the cheapest flights from Portsmouth to Fremont?
The cheapest flight price from Portsmouth to Fremont is £331. On average you can expect to pay £2,200. The most popular route, (Southampton Eastleigh - San Francisco), can usually be booked for £486.
Can I find deals for flights from Portsmouth to Fremont that include hotel bookings?
Yes. In addition to deals on Portsmouth to Fremont flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to Fremont?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to Fremont.
Can I find deals for business class flights from Portsmouth to Fremont?
Yes. Cheapflights offers flight deals from Portsmouth 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.
What is the cheapest month to book a flight from Portsmouth to Fremont?
Currently, December is the cheapest month in which you can book a flight from Portsmouth to Fremont (average of £346). Flying from Portsmouth to Fremont in July is currently the most expensive (average of £469). 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

Alternative routes for Portsmouth to Fremont

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Top 10 airlines flying from Portsmouth to Fremont

Airline	Cheapest	Average	Flexibility	On-time
Delta	Cheapest£244	Average£527	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Air Canada	Cheapest£344	Average£507	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	Cheapest£347	Average£568	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Aer Lingus	Cheapest£360	Average£578	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
TAP AIR PORTUGAL	Cheapest£360	Average£487	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Scandinavian Airlines	Cheapest£363	Average£538	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
SWISS	Cheapest£367	Average£452	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Brussels Airlines	Cheapest£374	Average£491	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Finnair	Cheapest£380	Average£502	FlexibilityNo cancel fee	On-time76%	Search Finnair flights
KLM	Cheapest£380	Average£462	FlexibilityNo cancel fee	On-time75%	Search KLM flights

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

Cheapflights makes it easy to find Portsmouth to Fremont flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Portsmouth 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 Portsmouth.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Portsmouth to Fremont, users can toggle the no change fees filter when performing a flight search.

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

Yes, Cheapflights offers price alerts on Portsmouth to Fremont flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Portsmouth to Fremont from £480

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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to Fremont

Keep the following information in mind while searching for Portsmouth to Fremont flight deals. Data was last updated 5 November 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to Fremont

Cheapest flights from Portsmouth to FremontExplore the most affordable flight options available from Portsmouth to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Explore the most affordable flight options available from Portsmouth to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portsmouth to Fremont that are best for you.

Best time to book a flight from Portsmouth to Fremont

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

Cheapflights Insights

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

What is the cheapest month to book a flight from Portsmouth to Fremont?

What is the cheapest time of day to fly from P0R to FR8?

Find hourly flight availability from Portsmouth 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 5 November 2025.

What is the cheapest day to fly from Portsmouth to Fremont?

Use this chart to determine the cheapest time to fly return from Portsmouth to Fremont. Price data was last updated on 16 December 2024.

Weekly flight availability from Portsmouth to Fremont

Explore weekly flight availability from Portsmouth to Fremont. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 5 November 2025.

Related info for your journey

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

What are the most reliable airlines from Portsmouth to Fremont?

What are the cheapest flights from Portsmouth to Fremont?

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

How can I find direct flights from Portsmouth to Fremont?

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

What is the cheapest month to book a flight from Portsmouth to Fremont?

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.

Alternative routes for Portsmouth to Fremont

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from Portsmouth to Fremont

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

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

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Cheapest flights from Portsmouth to Fremont
Explore the most affordable flight options available from Portsmouth to Fremont. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 November 2025.