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$354+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LHR
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$988
(Delta)

One-way from

$354
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$805
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. 21% potential increase in price ($256 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This Delta deal was found by Cheapflights users on 8/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:15 amDFW - SOU
2 stops19h 30mDelta
Thu 10/99:20 amSOU - DFW
2 stops20h 39mDelta
Deal found 8/18$988
This Ovago deal was found by Cheapflights users on 8/18. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/710:00 amDFW - SOU
2 stops16h 05mAer Lingus
Mon 10/208:00 pmSOU - DFW
1 stop26h 20mAer Lingus
Deal found 8/18$998
This oojo deal was found by Cheapflights users on 8/18. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/26:55 pmDFW - SOU
1 stop18h 35mAer Lingus
Thu 10/98:00 pmSOU - DFW
1 stop26h 20mAer Lingus
Deal found 8/18$1,058
This KAYAK deal was found by Cheapflights users on 8/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/207:10 pmDFW - SOU
1 stop18h 20mAer Lingus
Mon 10/279:30 amSOU - DFW
1 stop12h 55mAer Lingus
Deal found 8/17$1,071
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:05 amDFW - SOU
3 stops31h 50mMultiple Airlines
Thu 10/91:45 pmSOU - DFW
3 stops38h 58mMultiple Airlines
Deal found 8/18$1,219

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 August 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

Thu 10/2

7:15 am-8:45 am

2 stops19h 30m

Southampton Eastleigh

Thu 10/9

9:20 am-11:59 pm

2 stops20h 39m

$988

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 10/7

10:00 am-8:05 am

2 stops16h 05m

Southampton Eastleigh

Mon 10/20

8:00 pm-4:20 pm

1 stop26h 20m

$998

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 10/2

6:55 pm-7:30 pm

1 stop18h 35m

Southampton Eastleigh

Thu 10/9

8:00 pm-4:20 pm

1 stop26h 20m

$1,058

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Mon 10/20

7:10 pm-7:30 pm

1 stop18h 20m

Southampton Eastleigh

Mon 10/27

9:30 am-5:25 pm

1 stop12h 55m

$1,071

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 10/2

5:05 am-6:55 pm

3 stops31h 50m

Southampton Eastleigh

Thu 10/9

1:45 pm-10:43 pm

3 stops38h 58m

$1,219

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Mon 9/15

7:04 pm-8:05 am

2 stops31h 01m

$354

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 9/3

6:55 pm-4:35 pm

1 stop15h 40m

$631

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 8/26

7:05 pm-8:40 am

1 stop31h 35m

$662

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 8/26

9:40 am-5:00 pm

2 stops25h 20m

$668

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Wed 8/27

11:15 am-8:45 am

2 stops15h 30m

$839

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

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, November is the cheapest month in which you can book a flight from Dallas to Portsmouth (average of $661). Flying from Dallas to Portsmouth in June is currently the most expensive (average of $1,097). 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 August 20, 2025.

When flying from Dallas 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 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 August 20, 2025.

The most flights from A78 to P0R are scheduled on a Wednesday (29 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (19 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 $998, Delta can have you in Portsmouth from Dallas in 16h 05m. 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 (82%), Malaysia Airlines (74%), American Airlines( 68%).

  • What are the cheapest flights from Dallas to Portsmouth?

    Looking at all options, your cheapest flight can be booked for $239. While the most popular route (Dallas/Fort Worth - Southampton Eastleigh) can be booked for $988 on average our data indicates $2,883 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, November is the cheapest month in which you can book a flight from Dallas to Portsmouth (average of $661). Flying from Dallas to Portsmouth in June is currently the most expensive (average of $1,097). 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

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Alternative routes for Dallas to Portsmouth

See prices for flight routes from nearby airports that may be better suited for you.
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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 August 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$116Average$300FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$544Average$743FlexibilityNo cancel feeOn-time77%
Turkish AirlinesCheapest$563Average$866FlexibilityNo cancel feeOn-time77%
DeltaCheapest$568Average$907FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$571Average$823FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$576Average$1,027FlexibilityNo cancel feeOn-time70%
FinnairCheapest$635Average$888FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$635Average$984FlexibilityNo cancel feeOn-time71%
Air CanadaCheapest$637Average$1,015FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$658Average$866FlexibilityNo cancel feeOn-time69%

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