Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Friday (56 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (35 on average).

In terms of precipitation, rainfall in North America 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 North America when rainfall is around 71.0 mm.

If weather is an important factor for your trip to North America, 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).

What are the most popular routes from Portsmouth to North America?

The most popular route from Portsmouth to North America is Southampton Eastleigh - Miami. You may also consider Southampton Eastleigh - New York John F Kennedy Intl or Southampton Eastleigh - Los Angeles.

What are the cheapest flights from Portsmouth to North America?

On average you can expect to pay £2,393 for a flight from Portsmouth to North America. The cheapest flight overall is £362 while the most popular route, (Southampton Eastleigh - Miami) is currently priced at £694.

What are the most reliable airlines from Portsmouth to North America?

No one likes to see their flight delayed. When booking a flight from Portsmouth to North America consider choosing Malaysia Airlines (93%), SriLankan Airlines (90%) or Fiji Airways (83%) as they are the most reliable in getting you off to your destination on time.

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

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

How can I find direct flights from Portsmouth to North America?

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

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

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

Find Cheap Flights from Portsmouth to North America

Find flight deals from Portsmouth to North America

Popular in	July
Cheapest in	February
Average price	£475

Highest demand for flights based on searches. 16% potential increase in price (£74 potential increase over avg. return price).

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Cheapest flight prices on average. 2% potential price decrease (£9 potential savings vs. average return price).

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Average for round-trip flights in October 2026

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Cheapflights Insights

Everything you need to know about your flight from Portsmouth to North America

Prices

Airlines

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

One of the essential ways to save on airfare from Portsmouth to North America is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Portsmouth to North America?

Travellers seeking maximum savings on their Portsmouth to North America flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing North America

Get a feel of what it's like to fly with KLM and Aer Lingus from Portsmouth to North America by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

KLM

7.8

Good

1,576 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Aer Lingus

7.3

Good

1,811 reviews

KLM

7.8

Good

1,576 reviews

Check prices

Reviews

1 / 20

8.0

Excellent

Meghana,Aug 2026

QRO - ATL

It was a good one. They were very friendly and helpful

Related info for your journey

What are the most popular routes from Portsmouth to North America?
The most popular route from Portsmouth to North America is Southampton Eastleigh - Miami. You may also consider Southampton Eastleigh - New York John F Kennedy Intl or Southampton Eastleigh - Los Angeles.
What are the most reliable airlines from Portsmouth to North America?
No one likes to see their flight delayed. When booking a flight from Portsmouth to North America consider choosing Malaysia Airlines (93%), SriLankan Airlines (90%) or Fiji Airways (83%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Portsmouth to North America?
On average you can expect to pay £2,393 for a flight from Portsmouth to North America. The cheapest flight overall is £362 while the most popular route, (Southampton Eastleigh - Miami) is currently priced at £694.
Can I find deals for flights from Portsmouth to North America that include hotel bookings?
Yes. In addition to deals on Portsmouth to North America flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Portsmouth to North America?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portsmouth to North America.
Can I find deals for business class flights from Portsmouth to North America?
Yes. Cheapflights offers flight deals from Portsmouth to North America by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 10 airlines flying from Portsmouth to North America

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest£68	Average£201	FlexibilityNo cancel fee	On-time62%	Search Frontier flights
Air Canada	Cheapest£118	Average£619	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
TAP AIR PORTUGAL	Cheapest£228	Average£494	FlexibilityNo cancel fee	On-timeN/A	Search TAP AIR PORTUGAL flights
SWISS	Cheapest£249	Average£506	FlexibilityNo cancel fee	On-time79%	Search SWISS flights
JetBlue	Cheapest£263	Average£621	FlexibilityNo cancel fee	On-time62%	Search JetBlue flights
Delta	Cheapest£265	Average£622	FlexibilityNo cancel fee	On-timeN/A	Search Delta flights
Icelandair	Cheapest£287	Average£466	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Scandinavian Airlines	Cheapest£338	Average£532	FlexibilityNo cancel fee	On-time77%	Search Scandinavian Airlines flights
Austrian Airlines	Cheapest£354	Average£532	FlexibilityNo cancel fee	On-time78%	Search Austrian Airlines flights
Alaska Airlines	Cheapest£355	Average£528	FlexibilityNo cancel fee	On-time75%	Search Alaska Airlines flights

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How does Cheapflights help users find flights from Portsmouth to North America?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to North America from Portsmouth today with Cheapflights!

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

Cheapflights helps you find that perfect flight to North America from Portsmouth by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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

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

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

Yes, Cheapflights offers price alerts on Portsmouth to North America 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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Cheap flights from Portsmouth to North America

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Popular in

Cheapest in

Average price

Cheapflights Insights

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

One of the essential ways to save on airfare from Portsmouth to North America is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the morning could potentially save you up to 12% on airfare.

What is the cheapest day to fly from Portsmouth to North America?

Travellers seeking maximum savings on their Portsmouth to North America flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Portsmouth to North America

The most flights from P0R to 0NA are scheduled on a Friday (56 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (35 on average).

Reviews of airlines servicing North America

Get a feel of what it's like to fly with KLM and Aer Lingus from Portsmouth to North America by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

What are the most popular routes from Portsmouth to North America?

What are the most reliable airlines from Portsmouth to North America?

What are the cheapest flights from Portsmouth to North America?

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

How can I find direct flights from Portsmouth to North America?

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

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 North America

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

Complete your trip

Complete your trip to North America by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Portsmouth to North America by cabin class

Find flights from Portsmouth to North America, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Portsmouth and North America flights

Browse other Portsmouth and North America flight options. Last updated on 4 October 2026.

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