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Portsmouth

$489+ Cheap flights from Fremont, CA to Portsmouth, England

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 10/27. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Fremont to Portsmouth

Keep the following information in mind while searching for Fremont to Portsmouth flight deals. Data was last updated julio 31, 2025.

Round-trip from

$812
(Delta)

One-way from

$489
(Ovago)

Popular in

June

Cheapest in

October

Average price

$903
From Fremont to Portsmouth
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One-way flight from Fremont to Portsmouth
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Highest demand for flights based on searches. 16% potential increase in price ($151 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Fremont to Portsmouth

Cheapest flights from Fremont to Portsmouth
Explore the most affordable flight options available from Fremont to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Delta deal was found by Cheapflights users on 7/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/71:55 pmSFO - SOU
1 stop19h 30mDelta
mié. 12/245:30 pmSOU - SFO
1 stop26h 20mDelta
Deal found 7/30$812
This KLM deal was found by Cheapflights users on 7/31. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/47:00 amSFO - SOU
2 stops17h 45mKLM
dom. 9/146:25 pmSOU - SFO
1 stop25h 20mKLM
Deal found 7/31$874
This Kiwi.com deal was found by Cheapflights users on 7/30. 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.
sáb. 9/138:30 pmSFO - SOU
1 stop27h 05mMultiple Airlines
sáb. 9/204:25 pmSOU - SFO
2 stops51h 58mMultiple Airlines
Deal found 7/30$899
This Gurufare deal was found by Cheapflights users on 7/31. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/145:40 pmSFO - SOU
1 stop30h 35mAer Lingus
dom. 9/219:10 amSOU - SFO
1 stop14h 45mAer Lingus
Deal found 7/31$941

Cheapflights Fare Finder

 
Customize your flight search to find flights from Fremont to Portsmouth 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 julio 31, 2025.
Use the filters below to find and compare flights from Fremont to Portsmouth that are best for you.

Fly from

Fremont

Fly to

Portsmouth

Route

Depart

Return

Price

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

dom. 12/7

1:55 pm-5:25 pm

1 stop19h 30m

Southampton Eastleigh

mié. 12/24

5:30 pm-11:50 am

1 stop26h 20m

$812

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

jue. 9/4

7:00 am-8:45 am

2 stops17h 45m

Southampton Eastleigh

dom. 9/14

6:25 pm-11:45 am

1 stop25h 20m

$874

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

sáb. 9/13

8:30 pm-7:35 am

1 stop27h 05m

Southampton Eastleigh

sáb. 9/20

4:25 pm-12:23 pm

2 stops51h 58m

$899

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

dom. 9/14

5:40 pm-8:15 am

1 stop30h 35m

Southampton Eastleigh

dom. 9/21

9:10 am-3:55 pm

1 stop14h 45m

$941

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

lun. 10/27

6:20 pm-3:35 pm

1 stop14h 15m

$489

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

dom. 8/17

1:45 pm-8:50 am

1 stop35h 05m

$500

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

dom. 9/14

6:15 am-8:45 am

2 stops18h 30m

$504

San FranciscoSouthampton

SFO - SOU

SFOSOU

San Francisco

vie. 10/17

6:00 am-8:35 am

3 stops42h 35m

$831

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Best time to book a flight from Fremont to Portsmouth

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

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

Currently, November is the cheapest month in which you can book a flight from Fremont to Portsmouth (average of $661). Flying from Fremont to Portsmouth in June is currently the most expensive (average of $1,097). 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 P0R?

Find hourly flight availability from Fremont to Portsmouth. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from Fremont to Portsmouth, 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 Fremont to Portsmouth?

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

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

Weekly flight availability from Fremont to Portsmouth

Explore weekly flight availability from Fremont to Portsmouth. 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 julio 31, 2025.

The most flights from FR8 to P0R are scheduled on a Monday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (43 on average).

Reviews of airlines servicing Portsmouth

Get insights into the airlines that provide service to Portsmouth. 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 Portsmouth. Reviews last updated julio 31, 2025.
Read reviews from past customers who have flown Delta, KLM, and Aer Lingus from Fremont to Portsmouth. 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.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Crew

8.5

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

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

  • What are the cheapest airlines to fly from Fremont to Portsmouth one-way?

    The cheapest airline one-way is Aer Lingus, with whom users have recently found tickets for as low as $489. However, be on the lookout for offers from Delta and KLM, as they are both options that can get you from Fremont to Portsmouth for a low price.

  • What are the most reliable airlines from Fremont to Portsmouth?

    The top 3 most reliable airlines when flying from Fremont to Portsmouth are Aeromexico (83%), Air France (82%) and Delta (82%).

  • What are the cheapest flights from Fremont to Portsmouth?

    The cheapest flight price from Fremont to Portsmouth is $367. On average you can expect to pay $2,840. The most popular route, (San Francisco - Southampton Eastleigh), can usually be booked for $812.

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

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

  • How can I find direct flights from Fremont to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from Fremont to Portsmouth 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 Portsmouth?

    Currently, November is the cheapest month in which you can book a flight from Fremont to Portsmouth (average of $661). Flying from Fremont to Portsmouth in June is currently the most expensive (average of $1,097). 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.

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Top 10 airlines flying from Fremont to Portsmouth

Discover the top 10 airlines that operate flights from Fremont to Portsmouth. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$195Average$793FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$336Average$586FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$433Average$581FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$514Average$775FlexibilityNo cancel feeOn-time70%
SWISSCheapest$558Average$703FlexibilityNo cancel feeOn-time79%
IberiaCheapest$572Average$760FlexibilityNo cancel feeOn-time77%
FinnairCheapest$573Average$667FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$574Average$926FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$576Average$822FlexibilityNo cancel feeOn-time76%
DeltaCheapest$582Average$815FlexibilityNo cancel feeOn-timeN/A

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