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 £439 on Aer Lingus. Other airlines that offer cheap prices include KLM from £1,085 and Delta from £1,131 one-way.

What are the most popular routes from Portsmouth to USA?

Most travelers choose Southampton Eastleigh - Houston Hobby, Southampton Eastleigh - Seattle/Tacoma Intl or Southampton Eastleigh - Houston George Bush Intcntl 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 £1,697, our data shows the cheapest flight currently is £378. When looking at the most popular route, (Southampton Eastleigh - Houston Hobby), you can expect to pay £878 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 United Airlines (94%), Air Canada (88%) and Austrian Airlines (88%).

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 24% on this flight, we recommend booking at least 38 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 £412 1-2 weeks out and tickets from £597 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, January can be a great choice for travel to USA. Flights to USA from Portsmouth in January are about £416 on average during January, but can be found for as low as £211.

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.

£884+ Flights from Portsmouth to the United States

Cheap flight deals from Portsmouth to USA

Round-trip from	£401
One-way from	£239
Popular in	August
Cheapest in	January
Average price	£429

KLM
1/5-8/5
2 total stops
34h 01m total
Portsmouth to USA

Search Deals

15/5
2 total stops
36h 10m total
Portsmouth to USA

Search Deals

Highest demand for flights based on searches. 8% potential increase in price (£30 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£7 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 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 18 April 2025.

Thu 1/517:35SOU - JFK

1 stop23h 46mKLM

Thu 8/517:30JFK - SOU

1 stop10h 15mKLM

Deal found 17/4£401

Mon 28/409:20SOU - JFK

1 stop18h 30mVirgin Atlantic

Mon 12/517:30JFK - SOU

1 stop18h 30mVirgin Atlantic

Deal found 17/4£421

Mon 28/409:20SOU - LGA

2 stops15h 41mDelta

Mon 12/512:59LGA - SOU

2 stops14h 51mDelta

Deal found 17/4£424

Mon 28/409:20SOU - JFK

2 stops17h 47mDelta

Mon 12/510:13JFK - SOU

2 stops17h 37mDelta

Deal found 17/4£424

Mon 28/417:35SOU - JFK

1 stop10h 15mMultiple Airlines

Sun 11/500:50JFK - SOU

1 stop27h 00mMultiple Airlines

Deal found 17/4£460

Fri 2/520:00SOU - JFK

2 stops26h 15mAer Lingus

Thu 8/516:55JFK - SOU

1 stop10h 45mAer Lingus

Deal found 17/4£498

Thu 1/509:20SOU - SEA

2 stops19h 30mKLM

Mon 5/518:07SEA - SOU

1 stop14h 53mKLM

Deal found 17/4£603

Thu 29/509:20SOU - ORD

1 stop10h 50mKLM

Thu 5/611:05ORD - SOU

2 stops15h 40mKLM

Deal found 18/4£642

Thu 29/509:20SOU - ORD

1 stop10h 50mDelta

Thu 5/610:05ORD - SOU

2 stops16h 40mDelta

Deal found 17/4£643

Thu 29/509:20SOU - MDW

2 stops15h 25mDelta

Thu 5/609:16MDW - SOU

2 stops17h 29mDelta

Deal found 18/4£646

Thu 29/509:20SOU - ORD

2 stops20h 38mVirgin Atlantic

Thu 5/607:00ORD - SOU

2 stops19h 45mVirgin Atlantic

Deal found 17/4£646

Mon 28/409:20SOU - AUS

1 stop12h 40mDelta

Tue 27/505:40AUS - SOU

2 stops21h 05mDelta

Deal found 18/4£648

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 18 April 2025.

Thu 1/517:35SOU - JFK

1 stop23h 46mKLM

Thu 8/517:30JFK - SOU

1 stop10h 15mKLM

Deal found 17/4£401

Mon 28/409:20SOU - JFK

1 stop18h 30mVirgin Atlantic

Mon 12/517:30JFK - SOU

1 stop18h 30mVirgin Atlantic

Deal found 17/4£421

Mon 28/409:20SOU - LGA

2 stops15h 41mDelta

Mon 12/512:59LGA - SOU

2 stops14h 51mDelta

Deal found 17/4£424

Mon 28/417:35SOU - JFK

1 stop10h 15mMultiple Airlines

Sun 11/500:50JFK - SOU

1 stop27h 00mMultiple Airlines

Deal found 17/4£460

Fri 2/520:00SOU - JFK

2 stops26h 15mAer Lingus

Thu 8/516:55JFK - SOU

1 stop10h 45mAer Lingus

Deal found 17/4£498

Mon 28/409:20SOU - JFK

2 stops17h 47mDelta

Mon 12/510:13JFK - SOU

2 stops17h 37mDelta

Deal found 17/4£424

Thu 1/509:20SOU - SEA

2 stops19h 30mKLM

Mon 5/518:07SEA - SOU

1 stop14h 53mKLM

Deal found 17/4£603

Thu 29/509:20SOU - ORD

2 stops20h 38mVirgin Atlantic

Thu 5/607:00ORD - SOU

2 stops19h 45mVirgin Atlantic

Deal found 17/4£646

Thu 29/509:20SOU - ORD

1 stop10h 50mKLM

Thu 5/611:05ORD - SOU

2 stops15h 40mKLM

Deal found 18/4£642

Thu 29/509:20SOU - ORD

1 stop10h 50mDelta

Thu 5/616:20ORD - SOU

1 stop10h 25mDelta

Deal found 17/4£643

Sun 1/618:25SOU - MIA

2 stops31h 43mVirgin Atlantic

Sun 8/619:35MIA - SOU

2 stops56h 10mVirgin Atlantic

Deal found 16/4£648

Thu 29/509:20SOU - MDW

2 stops15h 25mDelta

Thu 5/609:16MDW - SOU

2 stops17h 29mDelta

Deal found 18/4£646

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

Tue 22/420:00SOU - JFK

1 stop28h 20mAer Lingus

Tue 29/416:55JFK - SOU

1 stop10h 10mAer Lingus

Deal found 17/4£617

Tue 22/420:00SOU - JFK

2 stops28h 10mMultiple Airlines

Mon 28/400:15JFK - SOU

2 stops27h 15mMultiple Airlines

Deal found 17/4£758

Tue 22/417:35SOU - JFK

1 stop26h 50mKLM

Mon 28/400:50JFK - SOU

1 stop26h 55mKLM

Deal found 17/4£1,071

Tue 22/409:20SOU - LGA

2 stops15h 13mKLM

Tue 29/416:00LGA - SOU

2 stops11h 45mKLM

Deal found 17/4£1,109

Wed 23/409:20SOU - ATL

1 stop16h 05mKLM

Thu 8/519:45ATL - SOU

1 stop32h 00mKLM

Deal found 18/4£1,837

Wed 23/409:20SOU - ATL

1 stop16h 05mVirgin Atlantic

Thu 8/522:40ATL - SOU

1 stop13h 20mVirgin Atlantic

Deal found 17/4£1,839

Thu 24/409:20SOU - LGA

2 stops27h 13mDelta

Wed 30/413:00LGA - SOU

2 stops14h 45mDelta

Deal found 17/4£451

Fri 25/409:20SOU - JFK

1 stop11h 05mDelta

Thu 1/517:30JFK - SOU

1 stop10h 15mDelta

Deal found 17/4£1,038

Sun 27/409:20SOU - ATL

1 stop32h 20mDelta

Thu 15/509:40ATL - SOU

2 stops18h 05mDelta

Deal found 17/4£830

Mon 28/409:20SOU - AUS

1 stop12h 40mDelta

Tue 27/505:40AUS - SOU

2 stops21h 05mDelta

Deal found 18/4£648

Mon 28/409:20SOU - AUS

1 stop12h 40mKLM

Tue 27/510:40AUS - SOU

2 stops16h 05mKLM

Deal found 17/4£649

Mon 28/409:20SOU - JFK

1 stop18h 30mVirgin Atlantic

Mon 12/517:30JFK - SOU

1 stop18h 30mVirgin Atlantic

Deal found 17/4£421

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 18 April 2025.

Thu 15/515:05SOU - JFK

2 stops36h 10mMultiple Airlines

Deal found 17/4£239

Mon 5/508:05SOU - SEA

2 stops44h 37mMultiple Airlines

Deal found 17/4£280

Sun 1/612:00SOU - MIA

2 stops31h 20mMultiple Airlines

Deal found 17/4£288

Sun 11/520:00SOU - LGA

3 stops50h 30mMultiple Airlines

Deal found 17/4£350

Sun 1/620:00SOU - JFK

1 stop22h 25mAer Lingus

Deal found 17/4£439

Sun 7/920:00SOU - SEA

1 stop29h 50mAer Lingus

Deal found 17/4£458

Sat 17/516:25SOU - ORD

3 stops56h 44mMultiple Airlines

Deal found 17/4£1,024

Sun 11/518:25SOU - JFK

1 stop22h 55mKLM

Deal found 17/4£1,085

Mon 28/417:35SOU - MIA

1 stop25h 20mDelta

Deal found 17/4£1,131

Sun 8/618:25SOU - JFK

2 stops29h 05mDelta

Deal found 17/4£1,131

Sun 1/609:20SOU - LGA

2 stops15h 10mKLM

Deal found 17/4£1,173

Mon 23/609:20SOU - AUS

1 stop12h 40mVirgin Atlantic

Deal found 18/4£1,202

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

Thu 1/5

17:35-12:21

1 stop23h 46m

New York John F Kennedy Intl

Thu 8/5

17:30-08:45

1 stop10h 15m

£401

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 28/4

17:35-22:50

1 stop10h 15m

New York John F Kennedy Intl

Mon 12/5

10:13-08:50

2 stops17h 37m

£420

SouthamptonNew York

SOU - LGA

SOULGA

Southampton Eastleigh

Mon 28/4

09:20-20:01

2 stops15h 41m

New York LaGuardia

Mon 12/5

12:59-08:50

2 stops14h 51m

£424

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Thu 1/5

09:20-22:07

2 stops17h 47m

New York John F Kennedy Intl

Wed 7/5

00:50-08:45

1 stop26h 55m

£435

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Mon 28/4

17:35-22:50

1 stop10h 15m

New York John F Kennedy Intl

Sun 11/5

00:50-08:50

1 stop27h 00m

£460

SouthamptonNew York

SOU - JFK

SOUJFK

Southampton Eastleigh

Fri 2/5

20:00-17:15

2 stops26h 15m

New York John F Kennedy Intl

Thu 8/5

16:55-08:40

1 stop10h 45m

£498

SouthamptonSeattle

SOU - SEA

SOUSEA

Southampton Eastleigh

Thu 1/5

09:20-20:50

2 stops19h 30m

Seattle/Tacoma Intl

Mon 5/5

18:07-17:00

1 stop14h 53m

£603

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 29/5

09:20-14:10

1 stop10h 50m

Chicago O'Hare Intl

Thu 5/6

11:05-08:45

2 stops15h 40m

£642

SouthamptonChicago

SOU - ORD

SOUORD

Southampton Eastleigh

Thu 29/5

09:20-14:10

1 stop10h 50m

Chicago O'Hare Intl

Thu 5/6

16:20-08:45

1 stop10h 25m

£643

SouthamptonChicago

SOU - MDW

SOUMDW

Southampton Eastleigh

Thu 29/5

09:20-18:45

2 stops15h 25m

Chicago Midway

Thu 5/6

09:16-08:45

2 stops17h 29m

£646

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 45 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 Friday (54 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (53 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

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,917 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,329 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Virgin Atlantic

7.4

Good

642 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus

7.0

Good

1,063 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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 £439 on Aer Lingus. Other airlines that offer cheap prices include KLM from £1,085 and Delta from £1,131 one-way.
What are the most popular routes from Portsmouth to USA?
Most travelers choose Southampton Eastleigh - Houston Hobby, Southampton Eastleigh - Seattle/Tacoma Intl or Southampton Eastleigh - Houston George Bush Intcntl 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 United Airlines (94%), Air Canada (88%) and Austrian Airlines (88%).
What are the cheapest flights from Portsmouth to USA?
While on average a flight from Portsmouth to USA is generally £1,697, our data shows the cheapest flight currently is £378. When looking at the most popular route, (Southampton Eastleigh - Houston Hobby), you can expect to pay £878 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£8	Average£556	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Delta	Cheapest£241	Average£621	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
PLAY	Cheapest£266	Average£421	FlexibilityNo cancel fee	On-timeN/A	Search PLAY flights
Air Canada	Cheapest£283	Average£532	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
TAP AIR PORTUGAL	Cheapest£285	Average£461	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
Icelandair	Cheapest£297	Average£566	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
United Airlines	Cheapest£302	Average£580	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Scandinavian Airlines	Cheapest£313	Average£549	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
SWISS	Cheapest£318	Average£469	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
Air Transat	Cheapest£338	Average£543	FlexibilityNo cancel fee	On-time50%	Search Air Transat 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 £239

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 15/5. 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 18 April 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 18 April 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 18 April 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 18 April 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 18 April 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 18 April 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?

100% Free

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 18 April 2025.