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Portsmouth

$524+ Cheap flights from Dallas 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 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LHR
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Dallas to Portsmouth

Keep the following information in mind while searching for Dallas to Portsmouth flight deals. Data was last updated October 20, 2025.

Round-trip from

$855
(KLM)

One-way from

$524
(Delta)

Popular in

June

Cheapest in

October

Average price

$741
From Dallas to Portsmouth
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One-way flight from Dallas to Portsmouth
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Highest demand for flights based on searches. 22% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Dallas to Portsmouth

Cheapest flights from Dallas to Portsmouth
Explore the most affordable flight options available from Dallas to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This KLM deal was found by Cheapflights users on 10/17. 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.
Tue 12/210:00 amDFW - SOU
2 stops16h 10mKLM
Tue 12/98:40 amSOU - DFW
2 stops19h 17mKLM
Deal found 10/17$855
This Delta deal was found by Cheapflights users on 10/19. 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.
Wed 12/38:30 amDFW - SOU
2 stops17h 50mDelta
Wed 12/108:40 amSOU - DFW
2 stops21h 42mDelta
Deal found 10/19$856
This Mytrip deal was found by Cheapflights users on 10/17. 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.
Tue 12/26:25 amDFW - SOU
3 stops31h 15mMultiple Airlines
Tue 12/912:25 pmSOU - DFW
3 stops29h 00mMultiple Airlines
Deal found 10/17$1,061
This Mytrip deal was found by Cheapflights users on 10/19. 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.
Wed 12/37:05 amDFW - SOU
3 stops30h 35mMultiple Airlines
Wed 12/109:25 amSOU - DFW
3 stops28h 39mMultiple Airlines
Deal found 10/19$1,164
This KAYAK deal was found by Cheapflights users on 10/18. 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 12/264:45 pmDFW - SOU
1 stop34h 00mAer Lingus
Sat 1/39:30 amSOU - DFW
1 stop13h 20mAer Lingus
Deal found 10/18$2,181
This British Airways deal was found by Cheapflights users on 10/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/29:15 pmDFW - SOU
2 stops16h 10mBritish Airways
Sun 12/146:25 pmSOU - DFW
3 stops26h 10mBritish Airways
Deal found 10/18$5,431
This British Airways deal was found by Cheapflights users on 10/19. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:15 pmDFW - SOU
2 stops16h 15mBritish Airways
Sun 12/216:25 pmSOU - DFW
3 stops26h 10mBritish Airways
Deal found 10/19$5,624

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dallas 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 October 20, 2025.
Use the filters below to find and compare flights from Dallas to Portsmouth that are best for you.

Fly from

Dallas

Fly to

Portsmouth

Route

Depart

Return

Price

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 12/2

10:00 am-8:10 am

2 stops16h 10m

Southampton Eastleigh

Tue 12/9

8:40 am-9:57 pm

2 stops19h 17m

$855

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 12/3

8:30 am-8:20 am

2 stops17h 50m

Southampton Eastleigh

Wed 12/10

8:40 am-12:22 am

2 stops21h 42m

$856

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 3/4

12:30 pm-8:05 am

2 stops37h 35m

Southampton Eastleigh

Sun 3/8

5:45 pm-10:40 pm

2 stops33h 55m

$913

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 12/2

6:25 am-7:40 pm

3 stops31h 15m

Southampton Eastleigh

Tue 12/9

12:25 pm-11:25 am

3 stops29h 00m

$1,061

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 12/3

7:05 am-7:40 pm

3 stops30h 35m

Southampton Eastleigh

Wed 12/10

9:25 am-8:04 am

3 stops28h 39m

$1,164

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Fri 12/26

4:45 pm-8:45 am

1 stop34h 00m

Southampton Eastleigh

Sat 1/3

9:30 am-4:50 pm

1 stop13h 20m

$2,181

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 12/2

9:15 pm-7:25 pm

2 stops16h 10m

Southampton Eastleigh

Sun 12/14

6:25 pm-2:35 pm

3 stops26h 10m

$5,431

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 12/18

9:15 pm-7:30 pm

2 stops16h 15m

Southampton Eastleigh

Sun 12/21

6:25 pm-2:35 pm

3 stops26h 10m

$5,624

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 11/4

1:33 pm-8:20 am

2 stops36h 47m

$524

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 11/5

5:44 pm-5:25 pm

2 stops17h 41m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/19

Showing 1-10 of 12 results
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Best time to book a flight from Dallas to Portsmouth

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

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

Currently, March is the cheapest month in which you can book a flight from Dallas to Portsmouth (average of $402). Flying from Dallas to Portsmouth in June is currently the most expensive (average of $868). 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 DFW to P0R?

Find hourly flight availability from Dallas 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 October 20, 2025.

When flying from Dallas to Portsmouth, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 59% versus a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Dallas to Portsmouth. Price data was last updated on December 16, 2024.

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

Weekly flight availability from Dallas to Portsmouth

Explore weekly flight availability from Dallas 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 October 20, 2025.

The most flights from A78 to P0R are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (27 on average).

Related info for your journey

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

  • How long is the flight from Dallas to Portsmouth?

    For as low as $855, KLM can have you in Portsmouth from Dallas in 16h 10m. Airlines will cover a distance of 4717 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the most reliable airlines from Dallas to Portsmouth?

    Before booking your flight to Portsmouth from Dallas, check out the most reliable airlines to get you to your destination on time: Royal Jordanian (78%), Malaysia Airlines (64%), American Airlines( 60%).

  • What are the cheapest flights from Dallas to Portsmouth?

    Looking at all options, your cheapest flight can be booked for $263. While the most popular route (Dallas/Fort Worth - Southampton Eastleigh) can be booked for $855 on average, our data indicates $2,915 when flying from Dallas to Portsmouth.

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

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

  • How can I find direct flights from Dallas to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from Dallas 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 Dallas to Portsmouth?

    Currently, March is the cheapest month in which you can book a flight from Dallas to Portsmouth (average of $402). Flying from Dallas to Portsmouth in June is currently the most expensive (average of $868). 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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Alternative routes for Dallas to Portsmouth

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Top 10 airlines flying from Dallas to Portsmouth

Discover the top 10 airlines that operate flights from Dallas 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$116Average$300FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$544Average$738FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$553Average$1,004FlexibilityNo cancel feeOn-time70%
Turkish AirlinesCheapest$563Average$1,011FlexibilityNo cancel feeOn-time77%
DeltaCheapest$568Average$890FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$571Average$981FlexibilityNo cancel feeOn-time72%
American AirlinesCheapest$586Average$1,035FlexibilityNo cancel feeOn-time71%
FinnairCheapest$610Average$903FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$628Average$868FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$636Average$1,163FlexibilityNo cancel feeOn-time76%

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