How long is the flight from Portsmouth to Fremont?

Departing from Portsmouth to Fremont will take you 14h 05m. 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 £373. On average you can expect to pay £1,776. The most popular route, (Southampton Eastleigh - San Francisco), can usually be booked for £476.

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: KLM (86%), Air France (86%), Delta( 86%).

What are the most popular airlines that fly from Portsmouth to Fremont?

The most popular airlines flying from Portsmouth to Fremont are American Airlines, Air Canada and Air France. Something to consider prior to booking your flight.

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.

£439+ Cheap Flights from Portsmouth to Fremont

Cheap flight deals from Portsmouth to Fremont

Round-trip from	£484
One-way from	£439
Popular in	July
Cheapest in	February
Average price	£421

Delta
1/11-7/11
4 total stops
44h 20m total
Portsmouth to Fremont

Search Deals

British Airways
10/11
1 total stop
14h 05m total
Portsmouth to Fremont

Search Deals

Highest demand for flights based on searches. 15% potential increase in price (£63 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 September 2025

Search Deals

Find flight deals from Portsmouth to Fremont

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 18 September 2025.

Sat 1/1109:25SOU - SFO

2 stops20h 05mDelta

Fri 7/1100:35SFO - SOU

2 stops24h 15mDelta

Deal found 17/9£484

Sat 1/1109:25SOU - SFO

2 stops20h 05mKLM

Sat 8/1113:55SFO - SOU

1 stop34h 15mKLM

Deal found 17/9£493

Sat 1/1109:30SOU - SFO

1 stop14h 05mAer Lingus

Sat 8/1117:20SFO - SOU

1 stop18h 20mAer Lingus

Deal found 17/9£503

Fri 7/1109:30SOU - SFO

1 stop14h 05mBritish Airways

Tue 11/1117:20SFO - SOU

1 stop18h 20mBritish Airways

Deal found 15/9£585

Tue 30/919:55SOU - SFO

2 stops29h 30mBritish Airways

Tue 7/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 16/9£747

Sat 1/1117:30SOU - SFO

3 stops29h 05mMultiple Airlines

Sat 8/1116:40SFO - SOU

3 stops31h 30mMultiple Airlines

Deal found 17/9£867

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 18 September 2025.

Sat 1/1109:25SOU - SFO

2 stops20h 05mDelta

Fri 7/1100:35SFO - SOU

2 stops24h 15mDelta

Deal found 17/9£484

Sat 1/1109:25SOU - SFO

2 stops20h 05mKLM

Sat 8/1107:15SFO - SOU

2 stops17h 35mKLM

Deal found 17/9£484

Sat 1/1109:30SOU - SFO

1 stop14h 05mAer Lingus

Sat 8/1117:20SFO - SOU

1 stop18h 20mAer Lingus

Deal found 17/9£503

Fri 7/1109:30SOU - SFO

1 stop14h 05mBritish Airways

Tue 11/1117:20SFO - SOU

1 stop18h 20mBritish Airways

Deal found 15/9£585

Sat 1/1109:40SOU - SFO

2 stops34h 10mMultiple Airlines

Sat 8/1116:35SFO - SOU

3 stops35h 15mMultiple Airlines

Deal found 17/9£955

Tue 30/919:55SOU - SFO

2 stops29h 30mBritish Airways

Tue 7/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 16/9£747

Last-minute flights from Portsmouth to Fremont
Discover last-minute flight deals from Portsmouth to Fremont. Data last updated 18 September 2025 and is based on user searches.

Thu 18/909:40SOU - SFO

1 stop14h 15mBritish Airways

Sat 4/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 17/9£999

Sat 20/909:40SOU - SFO

1 stop14h 15mBritish Airways

Tue 7/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 16/9£966

Sun 28/920:00SOU - SFO

2 stops25h 50mBritish Airways

Wed 1/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 16/9£13,129

Tue 30/919:55SOU - SFO

2 stops29h 30mBritish Airways

Tue 7/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 16/9£747

Wed 1/1019:55SOU - SFO

2 stops25h 55mBritish Airways

Wed 8/1017:40SFO - SOU

1 stop17h 50mBritish Airways

Deal found 17/9£10,254

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 18 September 2025.

Mon 10/1109:30SOU - SFO

1 stop14h 05mBritish Airways

Deal found 15/9£439

Wed 12/1119:55SOU - SFO

2 stops27h 05mBritish Airways

Deal found 16/9£503

Thu 6/1119:55SOU - SFO

2 stops27h 05mBritish Airways

Deal found 17/9£545

Wed 31/1208:40SOU - SFO

2 stops38h 20mBritish Airways

Deal found 17/9£607

Tue 7/1009:10SOU - SFO

1 stop14h 45mBritish Airways

Deal found 16/9£630

Wed 8/1009:10SOU - SFO

1 stop14h 45mBritish Airways

Deal found 17/9£634

Tue 30/919:55SOU - SFO

2 stops29h 30mBritish Airways

Deal found 16/9£652

Thu 9/1009:40SOU - SFO

1 stop14h 15mBritish Airways

Deal found 17/9£676

Tue 14/1009:10SOU - SFO

1 stop14h 45mBritish Airways

Deal found 17/9£683

Mon 13/1020:00SOU - SFO

1 stop27h 55mBritish Airways

Deal found 17/9£691

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 1/11

09:25-22:30

2 stops20h 05m

San Francisco

Fri 7/11

00:35-08:50

2 stops24h 15m

£484

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 1/11

09:25-22:30

2 stops20h 05m

San Francisco

Sat 8/11

07:15-08:50

2 stops17h 35m

£484

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 1/11

09:30-16:35

1 stop14h 05m

San Francisco

Sat 8/11

17:20-19:40

1 stop18h 20m

£503

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Fri 7/11

09:30-15:35

1 stop14h 05m

San Francisco

Tue 11/11

17:20-19:40

1 stop18h 20m

£585

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Tue 30/9

19:55-17:25

2 stops29h 30m

San Francisco

Tue 7/10

17:40-19:30

1 stop17h 50m

£747

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Sat 1/11

09:40-12:50

2 stops34h 10m

San Francisco

Sat 8/11

16:35-11:50

3 stops35h 15m

£955

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Mon 10/11

09:30-15:35

1 stop14h 05m

£439

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Thu 6/11

19:55-15:00

2 stops27h 05m

£545

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Wed 31/12

08:40-15:00

2 stops38h 20m

£607

SouthamptonSan Francisco

SOU - SFO

SOUSFO

Southampton Eastleigh

Tue 7/10

09:10-15:55

1 stop14h 45m

£630

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 14 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, February is the cheapest month in which you can book a flight from Portsmouth to Fremont (average of £538). Flying from Portsmouth to Fremont in July is currently the most expensive (average of £803). 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?

When flying from Portsmouth to Fremont, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 mornings when fares are most often at their lowest. Friday mornings 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 (42 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (36 on average).

Related info for your journey

How long is the flight from Portsmouth to Fremont?
Departing from Portsmouth to Fremont will take you 14h 05m. 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: KLM (86%), Air France (86%), Delta( 86%).
What are the cheapest flights from Portsmouth to Fremont?
The cheapest flight price from Portsmouth to Fremont is £373. On average you can expect to pay £1,776. The most popular route, (Southampton Eastleigh - San Francisco), can usually be booked for £476.
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, February is the cheapest month in which you can book a flight from Portsmouth to Fremont (average of £538). Flying from Portsmouth to Fremont in July is currently the most expensive (average of £803). 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£234	Average£483	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
United Airlines	Cheapest£332	Average£554	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
TAP AIR PORTUGAL	Cheapest£345	Average£460	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
SWISS	Cheapest£347	Average£432	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Aer Lingus	Cheapest£348	Average£551	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Scandinavian Airlines	Cheapest£349	Average£540	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Brussels Airlines	Cheapest£353	Average£470	FlexibilityNo cancel fee	On-timeN/A	Search Brussels Airlines flights
Air Canada	Cheapest£354	Average£483	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
Virgin Atlantic	Cheapest£358	Average£497	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights
British Airways	Cheapest£362	Average£580	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

Fly with Cheapflights

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 £439

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 10/11. 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 18 September 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 18 September 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 18 September 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 18 September 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

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

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

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 18 September 2025.