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Portsmouth

$258+ Cheap flights from the United States 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — LHR
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from USA to Portsmouth

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

Round-trip from

$537
(Kiwi.com)

One-way from

$258
(Kiwi.com)

Popular in

December

Cheapest in

January

Average price

$634
From USA to Portsmouth
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One-way flight from USA to Portsmouth
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($12 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 USA to Portsmouth

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

This Kiwi.com deal was found by Cheapflights users on 7/29. 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. 9/1312:15 amJFK - SOU
1 stop26h 20mMultiple Airlines
lun. 9/228:05 amSOU - JFK
1 stop19h 10mMultiple Airlines
Deal found 7/29$537
This Trip.com deal was found by Cheapflights users on 7/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/84:55 pmJFK - SOU
1 stop10h 45mAer Lingus
mié. 9/249:10 amSOU - JFK
1 stop15h 10mAer Lingus
Deal found 7/29$553
This lastminute.com deal was found by Cheapflights users on 7/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/85:35 pmEWR - SOU
1 stop10h 05mAer Lingus
mié. 9/249:10 amSOU - EWR
1 stop11h 55mAer Lingus
Deal found 7/29$594
This Mytrip deal was found by Cheapflights users on 7/29. 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.
dom. 9/145:45 pmLGA - SOU
2 stops20h 45mMultiple Airlines
lun. 9/228:00 pmSOU - LGA
2 stops23h 47mMultiple Airlines
Deal found 7/29$618
This Mytrip deal was found by Cheapflights users on 7/29. 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.
dom. 9/142:34 pmEWR - SOU
2 stops23h 56mMultiple Airlines
lun. 9/228:00 pmSOU - EWR
2 stops23h 43mMultiple Airlines
Deal found 7/29$619
This Mytrip deal was found by Cheapflights users on 7/29. 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.
lun. 9/84:45 pmBOS - SOU
2 stops21h 45mMultiple Airlines
mié. 9/249:10 amSOU - BOS
2 stops15h 45mMultiple Airlines
Deal found 7/29$635
This lastminute.com deal was found by Cheapflights users on 7/29. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/712:50 amJFK - SOU
1 stop11h 10mVirgin Atlantic
mié. 9/245:35 pmSOU - JFK
2 stops35h 04mVirgin Atlantic
Deal found 7/29$641
This Mytrip deal was found by Cheapflights users on 7/29. 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.
lun. 9/85:30 pmBOS - SOU
1 stop10h 10mAer Lingus
mié. 9/249:10 amSOU - BOS
1 stop14h 35mAer Lingus
Deal found 7/29$658
This Delta deal was found by Cheapflights users on 7/29. 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.
lun. 9/86:00 amJFK - SOU
2 stops21h 50mDelta
mié. 9/245:35 pmSOU - JFK
1 stop24h 55mDelta
Deal found 7/29$663
This Delta deal was found by Cheapflights users on 7/29. 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.
lun. 9/86:45 pmBOS - SOU
1 stop9h 05mDelta
mié. 9/175:35 pmSOU - BOS
1 stop25h 05mDelta
Deal found 7/29$666
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. 8/241:59 pmLGA - SOU
2 stops13h 46mDelta
vie. 2/278:40 amSOU - LGA
2 stops16h 43mDelta
Deal found 7/30$680
This Air France deal was found by Cheapflights users on 7/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/33:40 pmEWR - SOU
2 stops12h 05mKLM
mar. 9/169:20 amSOU - EWR
2 stops15h 10mKLM
Deal found 7/29$681

Cheapflights Fare Finder

 
Customize your flight search to find flights from USA 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 the United States to Portsmouth that are best for you.

Fly from

USA

Fly to

Portsmouth

Route

Depart

Return

Price

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

sáb. 9/13

12:15 am-7:35 am

1 stop26h 20m

Southampton Eastleigh

lun. 9/22

8:05 am-10:15 pm

1 stop19h 10m

$537

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

lun. 9/8

4:55 pm-8:40 am

1 stop10h 45m

Southampton Eastleigh

mié. 9/24

9:10 am-7:20 pm

1 stop15h 10m

$553

New YorkSouthampton

LGA - SOU

LGASOU

New York LaGuardia

dom. 9/14

5:45 pm-7:30 pm

2 stops20h 45m

Southampton Eastleigh

lun. 9/22

8:00 pm-2:47 pm

2 stops23h 47m

$618

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

dom. 9/14

2:34 pm-7:30 pm

2 stops23h 56m

Southampton Eastleigh

lun. 9/22

8:00 pm-2:43 pm

2 stops23h 43m

$619

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

lun. 9/8

4:45 pm-7:30 pm

2 stops21h 45m

Southampton Eastleigh

mié. 9/24

9:10 am-7:55 pm

2 stops15h 45m

$635

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

dom. 9/7

12:50 am-5:00 pm

1 stop11h 10m

Southampton Eastleigh

mié. 9/24

5:35 pm-11:39 pm

2 stops35h 04m

$641

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

lun. 9/8

5:30 pm-8:40 am

1 stop10h 10m

Southampton Eastleigh

mié. 9/24

9:10 am-6:45 pm

1 stop14h 35m

$658

New YorkSouthampton

JFK - SOU

JFKSOU

New York John F Kennedy Intl

lun. 9/8

6:00 am-8:50 am

2 stops21h 50m

Southampton Eastleigh

mié. 9/24

5:35 pm-1:30 pm

1 stop24h 55m

$663

BostonSouthampton

BOS - SOU

BOSSOU

Boston Logan Intl

lun. 9/8

6:45 pm-8:50 am

1 stop9h 05m

Southampton Eastleigh

mié. 9/17

5:35 pm-1:40 pm

1 stop25h 05m

$666

NewarkSouthampton

EWR - SOU

EWRSOU

Newark

dom. 9/14

5:35 pm-9:10 am

1 stop10h 35m

Southampton Eastleigh

dom. 9/21

9:10 am-4:05 pm

1 stop11h 55m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/31

Showing 1-10 of 60 results
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2
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Best time to book a flight from USA to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from USA 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 the United States to Portsmouth

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

Currently, November is the cheapest month in which you can book a flight from USA to Portsmouth (average of $661). Flying from USA 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 US to P0R?

Find hourly flight availability from USA 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 USA 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.

Weekly flight availability from USA to Portsmouth

Explore weekly flight availability from USA 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 US0 to P0R are scheduled on a Monday (59 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (44 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.
See what other customers who have flown with Delta, KLM, and Virgin Atlantic from the United States to Portsmouth have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,192 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,222 reviews
Delta
8.0
Very good
7,981 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from USA 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 USA to Portsmouth one-way?

    For one-way options, check prices for Aer Lingus. According to our data, you can fly for as low as $319. Users have also found prices from $361 and $452 on KLM and Delta, respectively.

  • What are the most popular routes from USA to Portsmouth?

    When deciding which route to take from USA to Portsmouth consider New York John F Kennedy Intl - Southampton Eastleigh, San Francisco - Southampton Eastleigh or Orlando - Southampton Eastleigh as they are the most popular.

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

    Before booking your flight to Portsmouth from USA, check out the most reliable airlines to get you to your destination on time: KLM (89%), Air France (89%), Delta( 89%).

  • What are the cheapest flights from USA to Portsmouth?

    While on average a flight from USA to Portsmouth is generally $3,320, our data shows the cheapest flight currently is $377. When looking at the most popular route, (New York John F Kennedy Intl - Southampton Eastleigh), you can expect to pay $564 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from USA to Portsmouth (average of $661). Flying from USA 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.

See more FAQs

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Alternative routes for USA 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 USA to Portsmouth

Discover the top 10 airlines that operate flights from USA 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$51Average$731FlexibilityNo cancel feeOn-time62%
LufthansaCheapest$197Average$783FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$203Average$589FlexibilityNo cancel feeOn-time77%
SWISSCheapest$245Average$658FlexibilityNo cancel feeOn-time79%
WestJetCheapest$272Average$1,046FlexibilityNo cancel feeOn-time60%
Norse Atlantic UKCheapest$280Average$561FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$340Average$626FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$354Average$734FlexibilityNo cancel feeOn-time67%
KLMCheapest$366Average$865FlexibilityNo cancel feeOn-time75%
TAP AIR PORTUGALCheapest$375Average$591FlexibilityNo cancel feeOn-timeN/A

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