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Portsmouth

$277+ Cheap flights from Atlanta (ATL) 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 9/25. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — LHR
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
1 adult, Economy
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Cheap flight deals from Atlanta to Portsmouth

Keep the following information in mind while searching for Atlanta to Portsmouth flight deals. Data was last updated July 2, 2025.

Round-trip from

$961
(KLM)

One-way from

$277
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,760
From Atlanta Hartsfield-Jackson to Portsmouth
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One-way flight from Atlanta Hartsfield-Jackson to Portsmouth
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Highest demand for flights based on searches. 25% potential increase in price ($491 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($116 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 Atlanta to Portsmouth

Cheapest flights from Atlanta to Portsmouth
Explore the most affordable flight options available from Atlanta to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2025.

This KLM deal was found by Cheapflights users on 6/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2310:40 pmATL - SOU
1 stop29h 05mKLM
Fri 10/319:00 amSOU - ATL
1 stop12h 55mKLM
Deal found 6/30$961
This Delta deal was found by Cheapflights users on 6/30. 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.
Thu 10/2312:15 pmATL - SOU
2 stops15h 30mDelta
Fri 10/319:00 amSOU - ATL
1 stop12h 55mDelta
Deal found 6/30$966
This Mytrip deal was found by Cheapflights users on 7/1. 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.
Thu 7/312:03 pmATL - SOU
2 stops20h 37mMultiple Airlines
Thu 8/78:00 amSOU - ATL
3 stops44h 46mMultiple Airlines
Deal found 7/1$1,307
This KAYAK deal was found by Cheapflights users on 7/1. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/110:30 pmATL - SOU
2 stops15h 45mBritish Airways
Sun 8/107:55 pmSOU - ATL
2 stops29h 40mBritish Airways
Deal found 7/1$4,268

Cheapflights Fare Finder

Customize your flight search to find flights from Atlanta 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 July 2, 2025.
Use the filters below to find and compare flights from Atlanta to Portsmouth that are best for you.

Fly from

Atlanta

Fly to

Portsmouth

Route

Depart

Return

Price

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Fri 8/15

8:00 pm-8:45 am

1 stop31h 45m

Southampton Eastleigh

Mon 8/25

5:35 pm-12:30 pm

1 stop23h 55m

$961

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Fri 9/19

10:40 pm-5:30 pm

1 stop13h 50m

Southampton Eastleigh

Sat 9/27

9:20 am-1:30 pm

1 stop33h 10m

$1,011

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Thu 7/31

2:03 pm-3:40 pm

2 stops20h 37m

Southampton Eastleigh

Thu 8/7

8:00 am-11:46 pm

3 stops44h 46m

$1,307

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Fri 8/1

10:30 pm-7:15 pm

2 stops15h 45m

Southampton Eastleigh

Sun 8/10

7:55 pm-8:35 pm

2 stops29h 40m

$4,268

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Thu 9/25

3:57 pm-6:55 pm

2 stops21h 58m

$277

AtlantaSouthampton

ATL - SOU

ATLSOU

Atlanta Hartsfield-Jackson

Sun 7/27

5:40 pm-5:50 pm

1 stop19h 10m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Atlanta to Portsmouth

Have a flexible travel schedule? Discover the best time to fly to Portsmouth from Atlanta 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 Atlanta to Portsmouth

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

Currently, November is the cheapest month in which you can book a flight from Atlanta to Portsmouth (average of $661). Flying from Atlanta to Portsmouth in June is currently the most expensive (average of $1,098). 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 ATL to P0R?

Find hourly flight availability from Atlanta 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 July 2, 2025.

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.

What is the cheapest day to fly from Atlanta to Portsmouth?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Portsmouth. Price data was last updated on October 20, 2024.

Travelers seeking maximum savings on their Atlanta to Portsmouth flight should consider departing on Monday evenings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Atlanta to Portsmouth

Explore weekly flight availability from Atlanta 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 July 2, 2025.

The most flights from ATL to P0R are scheduled on a Tuesday (25 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (23 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 July 2, 2025.
See what other customers who have flown with Delta, KLM, and British Airways 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
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
Delta
8.0
Very good
7,983 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.
British Airways
6.6
Okay
7,089 reviews
Delta
8.0
Very good
7,983 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

Find useful and relevant information for your journey from Atlanta to Portsmouth. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 Scandinavian Airlines (75%), KLM (74%) or Delta (74%) 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 $2,606, our data indicates the cheapest price to be $390. The most popular route (Atlanta Hartsfield-Jackson - Southampton Eastleigh), is priced around $961.

  • 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.

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

    Currently, November is the cheapest month in which you can book a flight from Atlanta to Portsmouth (average of $661). Flying from Atlanta to Portsmouth in June is currently the most expensive (average of $1,098). 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.

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Top 10 airlines flying from Atlanta to Portsmouth

Discover the top 10 airlines that operate flights from Atlanta 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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$266Average$971FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$382Average$861FlexibilityNo cancel feeOn-time67%
Scandinavian AirlinesCheapest$413Average$636FlexibilityNo cancel feeOn-time77%
JetBlueCheapest$509Average$765FlexibilityNo cancel feeOn-time62%
Virgin AtlanticCheapest$563Average$962FlexibilityNo cancel feeOn-time72%
IberiaCheapest$601Average$787FlexibilityNo cancel feeOn-time77%
Air FranceCheapest$620Average$891FlexibilityNo cancel feeOn-time77%
DeltaCheapest$622Average$1,163FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$626Average$1,238FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$626Average$871FlexibilityNo cancel feeOn-time70%

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