Weekly flight availability from Atlanta to Portsmouth

The most flights from ATL to P0R are scheduled on a Friday (28 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

In terms of precipitation, rainfall in Portsmouth ranges from 1.0 - 3.0 inches per month. December is typically the wettest month, when rainfall can reach 3.0 in. July is typically the driest time to visit Portsmouth when rainfall is around 1.0 in.

If weather is an important factor for your trip to Portsmouth, 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 64.4 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 39.2 F).

What are the cheapest flights from Atlanta to Portsmouth?

Looking for the cheapest flight from Atlanta to Portsmouth? While on average our users pay $2,005, our data indicates the cheapest price to be $380. The most popular route (Atlanta Hartsfield-Jackson - Southampton Eastleigh), is priced around $1,004.

What are the most reliable airlines from Atlanta to Portsmouth?

No one likes to see their flight delayed. When booking a flight from Atlanta to Portsmouth consider choosing KLM (88%), SAUDIA (88%) or Delta (88%) as they are the most reliable in getting you off to your destination on time.

What airport do you fly from for flights from Atlanta to Portsmouth?

For a flight from Atlanta to Portsmouth, you will be flying from Hartsfield-Jackson. Atlanta Hartsfield-Jackson (ATL) is just 8.2 mi from the center of the city. Hartsfield-Jackson is the only Atlanta airport and it handles 0 outbound flights to Portsmouth per day. 14 airlines have flights to Portsmouth from Atlanta Hartsfield-Jackson on a regular basis.

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

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

How can I find direct flights from Atlanta to Portsmouth?

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

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

Yes. Cheapflights offers flight deals from Atlanta 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.

Find Cheap Flights from Atlanta to Portsmouth

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Find flight deals from Atlanta to Portsmouth

Most accurate provider	Ovago 3 stars
Most trusted provider	Ovago 3 stars
Popular in	June
Cheapest in	February
Average price	$1,004

Provider with most accurate pricing for Atlanta Hartsfield-Jackson-London (LON) flight deals.

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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-London (LON) flights.

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Highest demand for flights based on searches. 22% potential increase in price ($290 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).

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Average for round-trip flights in October 2026

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Everything you need to know about your flight from Atlanta to Portsmouth

Prices

Airlines

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

When flying from Atlanta 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.

Reviews of airlines servicing Portsmouth

See what other customers who have flown with Delta from Atlanta 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

7.8

Good

8,652 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Delta

7.8

Good

8,652 reviews

Delta

7.8

Good

8,652 reviews

Reviews

1 / 20

4.0

Okay

Joel,May 2026

ATL - JAX

The flight was delivered 50 minutes and taxing took what felt like 20 minutes to takeoff.

Related info for your journey

What airport do you fly from for flights from Atlanta to Portsmouth?
For a flight from Atlanta to Portsmouth, you will be flying from Hartsfield-Jackson. Atlanta Hartsfield-Jackson (ATL) is just 8.2 mi from the center of the city. Hartsfield-Jackson is the only Atlanta airport and it handles 0 outbound flights to Portsmouth per day. 14 airlines have flights to Portsmouth from Atlanta Hartsfield-Jackson on a regular basis.
What are the most reliable airlines from Atlanta to Portsmouth?
No one likes to see their flight delayed. When booking a flight from Atlanta to Portsmouth consider choosing KLM (88%), SAUDIA (88%) or Delta (88%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Atlanta to Portsmouth?
Looking for the cheapest flight from Atlanta to Portsmouth? While on average our users pay $2,005, our data indicates the cheapest price to be $380. The most popular route (Atlanta Hartsfield-Jackson - Southampton Eastleigh), is priced around $1,004.
Can I find deals for flights from Atlanta to Portsmouth that include hotel bookings?
Yes. In addition to deals on Atlanta to Portsmouth flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Atlanta to Portsmouth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Portsmouth.
Can I find deals for business class flights from Atlanta to Portsmouth?
Yes. Cheapflights offers flight deals from Atlanta 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.

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Top 10 airlines flying from Atlanta to Portsmouth

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$384	Average$923	FlexibilityNo cancel fee	On-time62%
Iberia	Cheapest$396	Average$917	FlexibilityNo cancel fee	On-time77%
Delta	Cheapest$437	Average$1,294	FlexibilityNo cancel fee	On-timeN/A
Scandinavian Airlines	Cheapest$461	Average$810	FlexibilityNo cancel fee	On-time77%
Finnair	Cheapest$484	Average$926	FlexibilityNo cancel fee	On-time76%
Virgin Atlantic	Cheapest$565	Average$1,157	FlexibilityNo cancel fee	On-time72%
Air Canada	Cheapest$596	Average$768	FlexibilityNo cancel fee	On-time67%
American Airlines	Cheapest$630	Average$1,074	FlexibilityNo cancel fee	On-time71%
British Airways	Cheapest$651	Average$1,031	FlexibilityNo cancel fee	On-time70%
Air France	Cheapest$684	Average$1,128	FlexibilityNo cancel fee	On-time77%

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Cheap flights from Atlanta (ATL) to Portsmouth, England

Find cheap flights from Atlanta to Portsmouth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Atlanta to Portsmouth

Most accurate provider

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Popular in

Cheapest in

Average price

Cheapflights Insights

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

When flying from Atlanta 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 Atlanta to Portsmouth

The most flights from ATL to P0R are scheduled on a Friday (28 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (22 on average).

Reviews of airlines servicing Portsmouth

See what other customers who have flown with Delta from Atlanta 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.

Related info for your journey

What airport do you fly from for flights from Atlanta to Portsmouth?

What are the most reliable airlines from Atlanta to Portsmouth?

What are the cheapest flights from Atlanta to Portsmouth?

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

How can I find direct flights from Atlanta to Portsmouth?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Atlanta to Portsmouth

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

Complete your trip

Complete your trip to Portsmouth by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Atlanta to Portsmouth by cabin class

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

Atlanta and Portsmouth flights

Browse other Atlanta and Portsmouth flight options. Last updated on October 18, 2026.

Other flights from Atlanta

Browse through other flights departing from Atlanta. Flights are based on user searches made on Cheapflights and were last updated on October 18, 2026.

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Atlanta to Portsmouth flights

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