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

One-way options have recently been found by users for as low as £406 on Aer Lingus. Other airlines that offer cheap prices include Delta from £1,081 and Virgin Atlantic from £1,361 one-way.

What are the most popular routes from Portsmouth to USA?

Most travelers choose Southampton Eastleigh - New York John F Kennedy Intl, Southampton Eastleigh - Miami or Southampton Eastleigh - Fort Lauderdale when deciding on the best route from Portsmouth to USA.

What are the cheapest flights from Portsmouth to USA?

While on average a flight from Portsmouth to USA is generally £3,508, our data shows the cheapest flight currently is £351. When looking at the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl), you can expect to pay £429 for that flight.

What are the most reliable airlines from Portsmouth to USA?

The top 3 most reliable airlines when flying from Portsmouth to USA are SriLankan Airlines (94%), Iberia (91%) and KLM (90%).

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

Before booking your flight from Portsmouth to USA check out the most popular airlines for this route: American Airlines, Air Canada or Air France.

How far in advance should I book a flight from Portsmouth to USA?

To save up to 29% on this flight, we recommend booking at least 44 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portsmouth to USA from £394 1-2 weeks out and tickets from £603 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portsmouth to USA?

Due to multiple factors, expect to potentially pay more when booking in August. For low rates, September can be a great choice for travel to USA. Flights to USA from Portsmouth in September are about £405 on average during September, but can be found for as low as £258.

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

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

How can I find direct flights from Portsmouth to USA?

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

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

Yes. Cheapflights offers flight deals from Portsmouth to USA by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£714+ Flights from Portsmouth to the United States

Cheap flight deals from Portsmouth to USA

Round-trip from	£420
One-way from	£192
Popular in	August
Cheapest in	September
Average price	£389

KLM
2/7-8/7
2 total stops
28h 45m total
Portsmouth to USA

Search Deals

10/10
2 total stops
31h 15m total
Portsmouth to USA

Search Deals

Highest demand for flights based on searches. 9% potential increase in price (£32 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£8 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 2025

Search Deals

Find flight deals from Portsmouth to USA

Cheapest flights from Portsmouth to USA
Explore the most affordable flight options available from Portsmouth to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Sun 22/618:25SOU - JFK

1 stop23h 55mKLM

Sun 6/700:50JFK - SOU

1 stop27h 00mKLM

Deal found 12/6£397

Wed 2/709:20SOU - JFK

2 stops18h 01mDelta

Tue 8/710:30JFK - SOU

2 stops17h 15mDelta

Deal found 11/6£428

Sun 22/618:25SOU - JFK

1 stop29h 40mVirgin Atlantic

Mon 7/717:30JFK - SOU

1 stop10h 20mVirgin Atlantic

Deal found 12/6£429

Wed 16/709:20SOU - EWR

2 stops20h 39mVirgin Atlantic

Wed 23/715:39EWR - SOU

2 stops21h 11mVirgin Atlantic

Deal found 12/6£450

Sun 22/618:25SOU - EWR

2 stops29h 42mKLM

Mon 7/717:59EWR - SOU

2 stops33h 46mKLM

Deal found 12/6£550

Tue 19/818:25SOU - MIA

2 stops31h 57mDelta

Wed 3/912:30MIA - SOU

2 stops15h 15mDelta

Deal found 12/6£564

Thu 19/609:20SOU - FLL

2 stops18h 56mDelta

Mon 23/612:30FLL - SOU

2 stops15h 20mDelta

Deal found 12/6£564

Wed 16/709:10SOU - EWR

1 stop12h 10mMultiple Airlines

Wed 23/715:30EWR - SOU

2 stops23h 00mMultiple Airlines

Deal found 12/6£570

Tue 8/718:25SOU - ORD

1 stop26h 15mKLM

Tue 15/716:20ORD - SOU

1 stop19h 30mKLM

Deal found 11/6£585

Sun 27/709:10SOU - JFK

1 stop15h 10mAer Lingus

Sun 3/816:55JFK - SOU

1 stop11h 15mAer Lingus

Deal found 12/6£612

Wed 2/709:10SOU - EWR

1 stop11h 50mAer Lingus

Tue 8/717:30EWR - SOU

1 stop9h 35mAer Lingus

Deal found 11/6£670

Wed 2/709:10SOU - JFK

3 stops37h 15mMultiple Airlines

Tue 8/718:20JFK - SOU

2 stops20h 10mMultiple Airlines

Deal found 11/6£673

Best flights from Portsmouth to USA
Discover carefully curated flight deals from Portsmouth to USA that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 13 June 2025.

Wed 2/709:20SOU - JFK

1 stop18h 30mKLM

Tue 8/717:30JFK - SOU

1 stop10h 15mKLM

Deal found 11/6£420

Wed 2/709:20SOU - JFK

2 stops18h 01mDelta

Tue 8/710:30JFK - SOU

2 stops17h 15mDelta

Deal found 11/6£428

Wed 16/709:20SOU - EWR

2 stops20h 39mVirgin Atlantic

Wed 23/715:39EWR - SOU

2 stops21h 11mVirgin Atlantic

Deal found 12/6£450

Wed 16/709:10SOU - EWR

1 stop11h 50mAer Lingus

Wed 23/717:30EWR - SOU

1 stop10h 10mAer Lingus

Deal found 12/6£550

Wed 16/709:10SOU - EWR

1 stop12h 10mMultiple Airlines

Wed 23/715:30EWR - SOU

2 stops23h 00mMultiple Airlines

Deal found 12/6£570

Wed 16/709:20SOU - JFK

1 stop18h 30mVirgin Atlantic

Wed 23/718:10JFK - SOU

1 stop18h 40mVirgin Atlantic

Deal found 12/6£503

Tue 19/818:25SOU - MIA

2 stops31h 57mDelta

Wed 3/912:30MIA - SOU

2 stops15h 15mDelta

Deal found 12/6£564

Tue 8/718:25SOU - ORD

1 stop26h 15mKLM

Tue 15/716:20ORD - SOU

1 stop19h 30mKLM

Deal found 11/6£585

Sun 27/709:10SOU - JFK

1 stop15h 10mAer Lingus

Sun 3/816:55JFK - SOU

1 stop11h 15mAer Lingus

Deal found 12/6£612

Wed 2/709:10SOU - JFK

3 stops37h 15mMultiple Airlines

Tue 8/718:20JFK - SOU

2 stops20h 10mMultiple Airlines

Deal found 11/6£673

Wed 2/709:20SOU - EWR

2 stops15h 10mKLM

Tue 8/715:39EWR - SOU

2 stops12h 06mKLM

Deal found 12/6£676

Mon 28/709:20SOU - MCO

2 stops21h 08mDelta

Mon 4/805:30MCO - SOU

2 stops22h 20mDelta

Deal found 13/6£698

Last-minute flights from Portsmouth to USA
Discover last-minute flight deals from Portsmouth to USA. Data last updated 13 June 2025 and is based on user searches.

Thu 19/609:20SOU - MIA

2 stops18h 27mDelta

Mon 23/612:02MIA - SOU

2 stops15h 48mDelta

Deal found 12/6£564

Thu 19/609:20SOU - FLL

2 stops18h 56mDelta

Mon 23/612:30FLL - SOU

2 stops15h 20mDelta

Deal found 12/6£564

Thu 19/609:20SOU - MIA

3 stops32h 52mMultiple Airlines

Mon 23/619:20MIA - SOU

2 stops32h 25mMultiple Airlines

Deal found 12/6£1,041

Sun 22/618:25SOU - JFK

1 stop23h 55mKLM

Sun 6/700:50JFK - SOU

1 stop27h 00mKLM

Deal found 12/6£397

Sun 22/618:25SOU - JFK

1 stop29h 40mVirgin Atlantic

Mon 7/717:30JFK - SOU

1 stop10h 20mVirgin Atlantic

Deal found 12/6£429

Sun 22/609:20SOU - JFK

2 stops17h 45mDelta

Mon 7/710:30JFK - SOU

2 stops17h 20mDelta

Deal found 12/6£475

Sun 22/618:25SOU - EWR

2 stops29h 42mKLM

Mon 7/717:59EWR - SOU

2 stops33h 46mKLM

Deal found 12/6£550

Sun 22/609:10SOU - EWR

2 stops27h 58mMultiple Airlines

Mon 7/720:25EWR - SOU

3 stops31h 20mMultiple Airlines

Deal found 12/6£741

Sun 22/613:10SOU - JFK

2 stops32h 35mMultiple Airlines

Mon 7/720:25JFK - SOU

3 stops31h 20mMultiple Airlines

Deal found 12/6£787

Sun 22/609:10SOU - EWR

1 stop11h 50mAer Lingus

Mon 7/721:25EWR - SOU

2 stops17h 05mAer Lingus

Deal found 12/6£1,537

Mon 23/609:20SOU - LAX

1 stop13h 30mDelta

Thu 26/610:10LAX - SOU

2 stops22h 50mDelta

Deal found 11/6£1,166

Wed 2/709:20SOU - JFK

2 stops18h 01mDelta

Tue 8/717:30JFK - SOU

1 stop10h 15mDelta

Deal found 11/6£428

One-way flights from Portsmouth to USA
Search for one-way flight options from Portsmouth to USA. Find affordable one-way fares based on user searches. Data last updated 13 June 2025.

Fri 10/1019:25SOU - JFK

2 stops31h 15mMultiple Airlines

Deal found 12/6£192

Mon 8/908:05SOU - LAX

1 stop17h 25mMultiple Airlines

Deal found 10/6£232

Fri 10/1019:25SOU - EWR

1 stop30h 35mMultiple Airlines

Deal found 12/6£261

Wed 15/1020:00SOU - LAS

3 stops47h 39mMultiple Airlines

Deal found 11/6£344

Mon 20/1009:40SOU - JFK

1 stop14h 40mAer Lingus

Deal found 12/6£406

Mon 20/1009:40SOU - EWR

1 stop11h 20mAer Lingus

Deal found 12/6£406

Wed 9/709:10SOU - LAX

2 stops23h 30mAer Lingus

Deal found 12/6£475

Sat 15/1109:30SOU - LAS

1 stop16h 20mAer Lingus

Deal found 11/6£576

Wed 17/909:10SOU - SFO

1 stop14h 45mAer Lingus

Deal found 11/6£679

Sun 14/918:25SOU - JFK

1 stop26h 00mDelta

Deal found 11/6£1,081

Sun 31/818:25SOU - SFO

1 stop25h 20mDelta

Deal found 11/6£1,112

Tue 26/809:20SOU - LAX

1 stop34h 30mDelta

Deal found 10/6£1,115

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 2/7

09:20-22:50

1 stop18h 30m

New York John F Kennedy Intl

Tue 8/7

17:30-08:45

1 stop10h 15m

£420

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 2/7

09:20-22:21

2 stops18h 01m

New York John F Kennedy Intl

Tue 8/7

10:30-08:45

2 stops17h 15m

£428

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 16/7

09:20-00:59

2 stops20h 39m

Newark

Wed 23/7

15:39-17:50

2 stops21h 11m

£450

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 16/7

09:20-22:50

1 stop18h 30m

New York John F Kennedy Intl

Wed 23/7

18:10-17:50

1 stop18h 40m

£503

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 16/7

09:10-16:00

1 stop11h 50m

Newark

Wed 23/7

17:30-08:40

1 stop10h 10m

£550

SouthamptonMiami

SOU - MIA

SOUMIA

Southampton Eastleigh

Tue 19/8

18:25-21:22

2 stops31h 57m

Miami

Tue 2/9

12:30-08:45

2 stops15h 15m

£564

SouthamptonNewark

SOU - EWR

SOUEWR

Southampton Eastleigh

Wed 16/7

09:10-16:20

1 stop12h 10m

Newark

Wed 23/7

15:30-19:30

2 stops23h 00m

£570

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Tue 8/7

18:25-14:40

1 stop26h 15m

Chicago O'Hare Intl

Tue 15/7

16:20-17:50

1 stop19h 30m

£585

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Sun 27/7

09:10-19:20

1 stop15h 10m

New York John F Kennedy Intl

Sun 3/8

16:55-09:10

1 stop11h 15m

£612

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Wed 2/7

09:10-17:25

3 stops37h 15m

New York John F Kennedy Intl

Tue 8/7

18:20-19:30

2 stops20h 10m

£673

Flights are sorted by cheapest return flights first.

Deals found on 12/6

Showing 1-10 of 49 results

...

Best time to book a flight from Portsmouth to USA

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

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

Currently, January is the cheapest month in which you can book a flight from Portsmouth to USA (average of £575). Flying from Portsmouth to USA in July is currently the most expensive (average of £811). 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 US?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Portsmouth to USA as you normally would.

Weekly flight availability from Portsmouth to USA

The most flights from P0R to US0 are scheduled on a Monday (53 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (48 on average).

Rainfall in USA by month

In terms of precipitation, rainfall in USA ranges from 71.0 - 114.0 inches per month. July is typically the wettest month, when rainfall can reach 114.0 mm. February is typically the driest time to visit USA when rainfall is around 71.0 mm.

Temperature in USA by month

If weather is an important factor for your trip to USA, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 1.0 C).

Reviews of airlines servicing USA

Read through reviews of airlines operating flights from Portsmouth to USA, such as Delta, KLM and Virgin Atlantic. 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

7,950 reviews

Check prices

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

7,950 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

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

1,358 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

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

652 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

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

1,118 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

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

What are the cheapest airlines to fly from Portsmouth to USA one-way?
One-way options have recently been found by users for as low as £406 on Aer Lingus. Other airlines that offer cheap prices include Delta from £1,081 and Virgin Atlantic from £1,361 one-way.
What are the most popular routes from Portsmouth to USA?
Most travelers choose Southampton Eastleigh - New York John F Kennedy Intl, Southampton Eastleigh - Miami or Southampton Eastleigh - Fort Lauderdale when deciding on the best route from Portsmouth to USA.
What are the most reliable airlines from Portsmouth to USA?
The top 3 most reliable airlines when flying from Portsmouth to USA are SriLankan Airlines (94%), Iberia (91%) and KLM (90%).
What are the cheapest flights from Portsmouth to USA?
While on average a flight from Portsmouth to USA is generally £3,508, our data shows the cheapest flight currently is £351. When looking at the most popular route, (Southampton Eastleigh - New York John F Kennedy Intl), you can expect to pay £429 for that flight.
Can I find deals for flights from Portsmouth to USA that include hotel bookings?
Yes. In addition to deals on Portsmouth to USA flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to USA?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to USA.
Can I find deals for business class flights from Portsmouth to USA?
Yes. Cheapflights offers flight deals from Portsmouth to USA 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 USA?
Currently, January is the cheapest month in which you can book a flight from Portsmouth to USA (average of £575). Flying from Portsmouth to USA in July is currently the most expensive (average of £811). 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

Top 10 airlines flying from Portsmouth to USA

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£7	Average£537	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£235	Average£606	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
PLAY	Cheapest£259	Average£415	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
SWISS	Cheapest£274	Average£465	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Air Canada	Cheapest£275	Average£518	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
TAP AIR PORTUGAL	Cheapest£279	Average£463	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Icelandair	Cheapest£289	Average£564	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£291	Average£542	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Scandinavian Airlines	Cheapest£305	Average£540	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
American Airlines	Cheapest£305	Average£609	FlexibilityNo cancel fee	On-time71%	Search American Airlines flights

Fly with Cheapflights

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

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Portsmouth to USA. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

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 USA from Portsmouth.

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

Yes! Cheapflights helps users easily find flights from Portsmouth to USA with no change fees.

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

Not ready to book yet? You can track prices for flights from Portsmouth to USA on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Portsmouth to the United States from £192

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Portsmouth to USA

Keep the following information in mind while searching for Portsmouth to USA flight deals. Data was last updated 13 June 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portsmouth to USA

Cheapest flights from Portsmouth to USAExplore the most affordable flight options available from Portsmouth to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Explore the most affordable flight options available from Portsmouth to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Portsmouth to USA

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

Cheapflights Insights

Everything you need to know about your flight from Portsmouth to the United States

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

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

Find hourly flight availability from Portsmouth to USA. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 13 June 2025.

Weekly flight availability from Portsmouth to USA

Explore weekly flight availability from Portsmouth to USA. 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 13 June 2025.

Rainfall in USA by month

Plan your trip to USA by taking into account the average rainfall totals by month.

Temperature in USA by month

Plan your trip to USA by taking into account the average temperature totals by month.

Reviews of airlines servicing USA

Get insights into the airlines that provide service to USA. 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 USA. Reviews last updated 13 June 2025.

Read through reviews of airlines operating flights from Portsmouth to USA, such as Delta, KLM and Virgin Atlantic. 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.

Related info for your journey

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

What are the most popular routes from Portsmouth to USA?

What are the most reliable airlines from Portsmouth to USA?

What are the cheapest flights from Portsmouth to USA?

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

How can I find direct flights from Portsmouth to USA?

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

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

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 USA

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

Top 10 airlines flying from Portsmouth to USA

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

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

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

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

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Book with Flexibility

Travel Smart

Cheapest flights from Portsmouth to USA
Explore the most affordable flight options available from Portsmouth to USA. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.