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Cheap flights from San Francisco (SFO) to Portsmouth, England from $613

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 5/2. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SFO — LHR
May 1 — May 81
From?
To?
Wed 5/1
Wed 5/8
1 adult, Economy
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Cheap flight deals from San Francisco to Portsmouth

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Portsmouth (P0R). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 26, 2024.

Popular in

January

Cheapest in

November

Round-trip from

$644

One-way from

$635
High demand for flights, 38% potential price rise
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Best time to find cheap flights, 34% potential price drop
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From San Francisco to Portsmouth
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One-way flight from San Francisco to Portsmouth
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How far in advance should I book a flight from San Francisco to Portsmouth?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 22 days in advance, which can save you up to 23% on flights from San Francisco to Portsmouth compared to booking the week you need them. Waiting 22 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $846. For sooner than that we have options available in the next 3 days from $968.

What is the cheapest month to fly from San Francisco to Portsmouth?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, October can be a great choice for travel to Portsmouth. Flights to Portsmouth from San Francisco in October are about $827 on average during October, but can be found for as low as $388.

When is the cheapest time to fly from San Francisco to Portsmouth (SFO - P0R)?

When flying from San Francisco 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.

Cheap British Airways flights from San Francisco to Portsmouth

Explore cheap flight options specifically provided by British Airways for the route between San Francisco and Portsmouth. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Take a look at some of the lowest-priced British Airways flights heading from San Francisco to Portsmouth. Be sure to come back soon if the deals available don't appeal to you at this time.
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Wed 9/49:40 amSOU - SFO
1 stop14h 10mBritish Airways
Deal found 4/25$994
Wed 10/97:20 pmSFO - SOU
2 stops16h 05mBritish Airways
Wed 10/309:15 amSOU - SFO
2 stops22h 06mBritish Airways
Deal found 4/25$1,006
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Tue 9/37:55 pmSOU - SFO
2 stops25h 20mBritish Airways
Deal found 4/25$1,024
Wed 10/95:45 pmSFO - SOU
1 stop31h 25mBritish Airways
Wed 10/309:15 amSOU - SFO
2 stops20h 20mBritish Airways
Deal found 4/25$1,032
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Sat 9/79:40 amSOU - SFO
1 stop14h 10mBritish Airways
Deal found 4/25$1,037
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Mon 5/67:55 pmSOU - SFO
2 stops25h 20mBritish Airways
Deal found 4/24$1,051
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Mon 5/67:55 pmSOU - SFO
2 stops25h 20mBritish Airways
Deal found 4/25$1,052
Thu 5/27:20 pmSFO - SOU
2 stops16h 05mBritish Airways
Wed 9/49:40 amSOU - SFO
1 stop14h 10mBritish Airways
Deal found 4/25$1,066
Wed 10/95:45 pmSFO - SOU
1 stop17h 45mBritish Airways
Wed 10/309:15 amSOU - SFO
1 stop14h 00mBritish Airways
Deal found 4/25$1,080

Cheap KLM flights from San Francisco to Portsmouth

Explore cheap flight options specifically provided by KLM for the route between San Francisco and Portsmouth. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
To aid your search, here are some of the cheapest KLM flights we've found from San Francisco to Portsmouth. Deals frequently update to provide users with more options.
Wed 5/81:50 pmSFO - SOU
1 stop19h 00mKLM
Mon 5/137:40 pmSOU - SFO
1 stop24h 05mKLM
Deal found 4/25$907
Wed 5/86:05 amSFO - SOU
2 stops17h 20mKLM
Mon 5/137:40 pmSOU - SFO
1 stop24h 05mKLM
Deal found 4/25$911
Wed 5/86:05 amSFO - SOU
2 stops17h 20mKLM
Mon 5/137:55 amSOU - SFO
2 stops18h 33mKLM
Deal found 4/25$921
Fri 5/241:50 pmSFO - SOU
1 stop19h 00mKLM
Fri 5/317:40 pmSOU - SFO
1 stop24h 05mKLM
Deal found 4/24$1,156
Fri 5/241:50 pmSFO - SOU
1 stop19h 00mKLM
Fri 5/317:55 amSOU - SFO
2 stops18h 33mKLM
Deal found 4/24$1,159

Cheap San Francisco to Portsmouth flights in April & May 2024

Find cheap flight options from San Francisco to Portsmouth specifically for the months of April and May 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Prices were last updated on April 26, 2024.
Check out some of the best flight deals from San Francisco to Portsmouth in 2024. Check back regularly for other flight deals.
Sun 5/121:50 pmSFO - SOU
1 stop21h 20mDelta
Mon 5/207:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$781
Mon 5/1310:55 amSFO - SOU
2 stops24h 15mDelta
Tue 5/217:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$786
Mon 5/131:50 pmSFO - SOU
1 stop33h 35mDelta
Wed 5/227:55 amSOU - SFO
2 stops18h 33mDelta
Deal found 4/26$791
Mon 5/1310:05 pmSFO - SOU
2 stops25h 20mDelta
Wed 5/227:55 amSOU - SFO
2 stops18h 33mDelta
Deal found 4/26$796
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/65:20 pmSOU - SFO
1 stop26h 25mVirgin Atlantic
Deal found 4/24$803
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mVirgin Atlantic
Deal found 4/25$804
Thu 5/210:00 amSFO - SOU
2 stops25h 10mDelta
Mon 5/67:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/24$807
Thu 5/21:25 pmSFO - SOU
2 stops21h 45mDelta
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mDelta
Deal found 4/25$808
Sun 5/121:50 pmSFO - SOU
1 stop33h 35mDelta
Sun 5/197:40 pmSOU - SFO
1 stop24h 05mDelta
Deal found 4/26$810

San Francisco to Portsmouth 2024 flight deals

Discover exclusive flight deals for travel between San Francisco and Portsmouth in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Check out some of the best flight deals from San Francisco to Portsmouth in 2024. Check back regularly for other flight deals.
Sun 5/121:50 pmSFO - SOU
1 stop21h 20mDelta
Mon 5/207:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$781
Mon 5/1310:55 amSFO - SOU
2 stops24h 15mDelta
Tue 5/217:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$786
Mon 5/131:50 pmSFO - SOU
1 stop33h 35mDelta
Wed 5/227:55 amSOU - SFO
2 stops18h 33mDelta
Deal found 4/26$791
Mon 5/1310:05 pmSFO - SOU
2 stops25h 20mDelta
Wed 5/227:55 amSOU - SFO
2 stops18h 33mDelta
Deal found 4/26$796
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/65:20 pmSOU - SFO
1 stop26h 25mVirgin Atlantic
Deal found 4/24$803
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mVirgin Atlantic
Deal found 4/25$804
Thu 5/210:00 amSFO - SOU
2 stops25h 10mDelta
Mon 5/67:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/24$807
Thu 5/21:25 pmSFO - SOU
2 stops21h 45mDelta
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mDelta
Deal found 4/25$808
Sun 5/121:50 pmSFO - SOU
1 stop33h 35mDelta
Sun 5/197:40 pmSOU - SFO
1 stop24h 05mDelta
Deal found 4/26$810

San Francisco to Portsmouth flights leaving soon

Find last-minute flight options from San Francisco to Portsmouth for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Have a look at some of the flights available from San Francisco to Portsmouth departing last-minute. Users should double check the flight they book to ensure it matches the day, time, and destination they're looking for.
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/65:20 pmSOU - SFO
1 stop26h 25mVirgin Atlantic
Deal found 4/24$803
Thu 5/21:55 pmSFO - SOU
1 stop18h 55mVirgin Atlantic
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mVirgin Atlantic
Deal found 4/25$804
Thu 5/210:00 amSFO - SOU
2 stops25h 10mDelta
Mon 5/67:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/24$807
Thu 5/21:25 pmSFO - SOU
2 stops21h 45mDelta
Mon 5/67:40 pmSOU - SFO
1 stop24h 05mDelta
Deal found 4/25$808
Thu 5/21:25 pmSFO - SOU
2 stops21h 45mDelta
Mon 5/67:55 amSOU - SFO
2 stops22h 50mDelta
Deal found 4/24$818
Mon 5/61:50 pmSFO - SOU
1 stop33h 35mDelta
Wed 5/157:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$885
Mon 5/612:40 amSFO - SOU
2 stops34h 30mDelta
Mon 5/137:55 amSOU - SFO
1 stop35h 50mDelta
Deal found 4/26$890
Mon 5/61:50 pmSFO - SOU
1 stop21h 20mDelta
Sun 5/127:40 pmSOU - SFO
2 stops28h 18mDelta
Deal found 4/26$895
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Wed 9/49:40 amSOU - SFO
1 stop14h 10mBritish Airways
Deal found 4/25$994

One-way flights to Portsmouth from San Francisco

Search for one-way flight options from San Francisco to Portsmouth. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 3,068,117 searches. Data last updated April 26, 2024.
Users in need of a one-way flight from San Francisco to Portsmouth can choose from these deals. Users can also find round-trip San Francisco to Portsmouth flights by using the search form above.
Thu 5/23:30 pmSFO - SOU
3 stops19h 40mBritish Airways
Deal found 4/25$613
Mon 4/293:30 pmSFO - SOU
2 stops19h 55mBritish Airways
Deal found 4/25$616
Mon 5/135:45 pmSFO - SOU
1 stop17h 45mBritish Airways
Deal found 4/25$635
Sun 7/146:00 amSFO - SOU
2 stops29h 30mBritish Airways
Deal found 4/24$640
Mon 5/133:30 pmSFO - SOU
2 stops16h 30mBritish Airways
Deal found 4/25$657
Mon 4/295:45 pmSFO - SOU
1 stop17h 45mBritish Airways
Deal found 4/25$680
Tue 4/3010:01 amSFO - SOU
2 stops25h 29mBritish Airways
Deal found 4/25$685
Wed 5/13:30 pmSFO - SOU
2 stops19h 55mBritish Airways
Deal found 4/25$702
Fri 5/173:30 pmSFO - SOU
2 stops33h 55mBritish Airways
Deal found 4/25$716

Find flights from San Francisco to Portsmouth within your budget

Customize your flight search to find flights from San Francisco 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 3,068,117 searches. Data last updated April 26, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$781 - $1,360

Route

Depart

Return

Price

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Sun 5/12

1 stop21h 20m

Southampton Eastleigh

Mon 5/20

1 stop35h 50m

$781

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Mon 5/13

2 stops25h 20m

Southampton Eastleigh

Mon 5/20

1 stop24h 05m

$786

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Mon 5/13

1 stop33h 35m

Southampton Eastleigh

Wed 5/22

2 stops18h 33m

$791

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Mon 5/13

2 stops25h 20m

Southampton Eastleigh

Wed 5/22

2 stops18h 33m

$796

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Wed 5/8

1 stop19h 00m

Southampton Eastleigh

Mon 5/13

1 stop24h 05m

$907

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Wed 5/8

2 stops17h 20m

Southampton Eastleigh

Mon 5/13

1 stop24h 05m

$911

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Wed 5/8

2 stops17h 20m

Southampton Eastleigh

Mon 5/13

2 stops18h 33m

$921

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Wed 10/9

2 stops16h 05m

Southampton Eastleigh

Wed 10/30

2 stops22h 06m

$1,006

San FranciscoSouthampton Eastleigh

SFO - SOU

SFOSOU

San Francisco

Mon 10/21

1 stop17h 45m

Southampton Eastleigh

Wed 10/30

1 stop14h 00m

$1,360

Flights are sorted by cheapest first

Deals found on 4/26

When is the cheapest time to fly from San Francisco to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from San Francisco to Portsmouth. Price data was last updated on April 21, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their San Francisco to Portsmouth flight should consider departing on Tuesday at noon 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.
Search Deals

Average price of flights to Portsmouth by month

Plan your trip from San Francisco to Portsmouth by taking into account the cheapest months to travel. The average price of a one-way flight from San Francisco to Portsmouth is currently $660 while a round-trip flight costs $918. Price data was last updated on April 21, 2024.

Currently, November is the cheapest month in which you can book a flight from San Francisco to Portsmouth (average of $653). Flying from San Francisco to Portsmouth in June is currently the most expensive (average of $1,173). 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.

January

$675

February

$664

March

$715

April

$700

May

$748

June

$1,173

July

$987

August

$779

September

$748

October

$712

November

$653

December

$672

Temperature and rainfall in Portsmouth by month

Plan your trip to Portsmouth by taking into account the average temperature and rainfall totals by month.

LON

Temperature

39.2 - 62.6 °F

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 April 26, 2024.
Peruse reviews from past customers who have flown with British Airways, KLM and Delta from San Francisco to Portsmouth to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.1
Very good
10,966 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Delta
8.1
Very good
10,966 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

KLM
7.9
Good
1,626 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Aer Lingus
7.2
Good
1,349 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

British Airways
6.8
Okay
6,915 reviews
Delta
8.1
Very good
10,966 reviews
Check prices

Crew

8.6

Overall

8.1

Comfort

7.9

Food

7.4

Entertainment

8.0

Boarding

8.2

Reviews

1 / 10

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

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

  • What airport do you fly from for flights from San Francisco to Portsmouth?

    San Francisco (SFO), located 11.8 mi from the city center, is the airport you fly out of when you book flights from San Francisco to Portsmouth. 23 airlines have flights from San Francisco to Portsmouth on a regular basis. Booking flights from San Francisco to Portsmouth should not be difficult; the airport handles an average of 0 outbound flights to Portsmouth per day.

  • Can I find flights from San Francisco to Portsmouth for under $800 on Cheapflights?

    Yes, there are multiple flights from San Francisco to Portsmouth for under $800. The cheapest flight booked recently is on Delta for just $781, but on average you can expect to pay $852.

  • Are there last-minute flights available from San Francisco to Portsmouth for under $900?

    There are currently 20+ open flights from San Francisco to Portsmouth within the next 7 days for less than $900.

  • What are the most popular airlines that fly from San Francisco to Portsmouth?

    American Airlines, Air Canada and Air France are the most popular airlines when flying from San Francisco to Portsmouth.

  • What are the most reliable airlines from San Francisco to Portsmouth?

    Consider Air France (86%), Delta (83%) or Virgin Atlantic (83%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to Portsmouth.

  • What are the cheapest flights from San Francisco to Portsmouth?

    While on average a flight from San Francisco to Portsmouth is generally $1,949, our data shows the cheapest flight currently is $453. When looking at the most popular route, (San Francisco - Southampton Eastleigh), you can expect to pay $777 for that flight.

  • What does SFO to LHR mean?

    SFO and LHR are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SFO to LHR refers to a flight route from San Francisco Airport to London Heathrow Airport. Ready for more IATA code knowledge? These are related airports for your current travel destination: London Gatwick Airport (LGW), London Stansted Airport (STN), London Luton Airport (LTN), London City Airport (LCY), Southampton Eastleigh Airport (SOU).

  • Can I find deals for flights from San Francisco to Portsmouth that include extra baggage allowance?

    The amount of baggage you can bring on your San Francisco to Portsmouth flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from San Francisco to Portsmouth with specific airlines?

    Yes, Cheapflights allows you to browse and filter San Francisco to Portsmouth flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from San Francisco to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from San Francisco 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.

  • Can I find deals for flights from San Francisco to Portsmouth that allow pets onboard?

    Many airlines flying from San Francisco to Portsmouth offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from San Francisco to Portsmouth?

    Yes, you can often find last-minute deals on San Francisco to Portsmouth flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the San Francisco to Portsmouth flight deals updated?

    The San Francisco to Portsmouth flight deals you see on this page were last updated on 4/26.

See more FAQs

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Alternative routes for San Francisco to Portsmouth
See prices for flight routes from nearby airports that may be better suited for you.

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Top 10 airlines flying from San Francisco to Portsmouth

Discover the top 10 airlines that operate flights from San Francisco 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 3,068,117 searches. Data last updated April 26, 2024.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$224Average$560FlexibilityNo cancel feeOn-timeN/A
Search Norse Atlantic UK flights
TAP AIR PORTUGALCheapest$466Average$546FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
VuelingCheapest$481Average$567FlexibilityNo cancel feeOn-time88%
Search Vueling flights
Scandinavian AirlinesCheapest$489Average$548FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Brussels AirlinesCheapest$529Average$772FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest$544Average$813FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Aer LingusCheapest$562Average$802FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
SWISSCheapest$566Average$722FlexibilityNo cancel feeOn-time79%
Search SWISS flights
IberiaCheapest$575Average$724FlexibilityNo cancel feeOn-time77%
Search Iberia flights
FinnairCheapest$575Average$761FlexibilityNo cancel feeOn-time76%
Search Finnair flights
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Search flights from San Francisco to Portsmouth by cabin class

Find flights from San Francisco to Portsmouth, based on your preferred cabin class, be it economy, premium economy, business, or first class.
First Class
Business Class
Prem Econ Class
Economy Class

Hourly flight availability from San Francisco to Portsmouth

Find hourly flight availability from San Francisco 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 April 26, 2024.
1%of flight departuresEarly morningMidnight to 6 am
17%of flight departuresMorning6 am to noon
39%of flight departuresAfternoonNoon to 6 pm
43%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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Yes, Cheapflights offers price alerts on San Francisco to Portsmouth 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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