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Portsmouth

$371+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
DFW — LHR
Mar 18 — Mar 251
Wed 3/18
Wed 3/25
1 adult, Economy
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Cheap 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 February 16, 2026.

This Delta deal was found by Cheapflights users on 2/14. 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 5/611:16 am
DFW
-
SOU
2 stops23h 34m
Delta
Thu 5/149:05 am
SOU
-
DFW
2 stops18h 21m
Delta
Deal found 2/14$874
This Delta deal was found by Cheapflights users on 2/14. 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 5/78:15 am
DFW
-
SOU
2 stops18h 20m
Delta
Mon 5/115:20 pm
SOU
-
DFW
2 stops30h 24m
Delta
Deal found 2/14$939
This KLM deal was found by Cheapflights users on 2/13. 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 3/315:00 pm
DFW
-
SOU
2 stops17h 50m
KLM
Tue 4/79:05 am
SOU
-
DFW
2 stops18h 52m
KLM
Deal found 2/13$945
This oojo deal was found by Cheapflights users on 2/15. 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.
Tue 8/258:35 am
DFW
-
SOU
2 stops28h 55m
Aer Lingus
Mon 9/78:00 pm
SOU
-
DFW
2 stops27h 05m
Aer Lingus
Deal found 2/15$972
This Delta deal was found by Cheapflights users on 2/14. 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 5/78:15 am
DFW
-
SOU
2 stops18h 20m
Delta
Sun 5/109:15 am
SOU
-
DFW
2 stops18h 11m
Delta
Deal found 2/14$1,004
This oojo deal was found by Cheapflights users on 2/13. 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.
Tue 3/317:05 pm
DFW
-
SOU
1 stop18h 25m
Multiple Airlines
Tue 4/78:00 pm
SOU
-
DFW
1 stop23h 10m
Multiple Airlines
Deal found 2/13$1,013
This Justfly.com deal was found by Cheapflights users on 2/13. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:34 am
DFW
-
SOU
2 stops19h 06m
Aer Lingus
Mon 9/148:00 pm
SOU
-
DFW
2 stops28h 33m
Aer Lingus
Deal found 2/13$1,034
This oojo deal was found by Cheapflights users on 2/13. 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.
Tue 3/317:40 pm
DFW
-
SOU
2 stops17h 50m
Aer Lingus
Tue 4/78:00 pm
SOU
-
DFW
1 stop23h 10m
Aer Lingus
Deal found 2/13$1,036
This Gurufare deal was found by Cheapflights users on 2/12. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/295:30 am
DFW
-
SOU
2 stops29h 05m
Aer Lingus
Sun 4/58:00 pm
SOU
-
DFW
2 stops41h 50m
Aer Lingus
Deal found 2/12$1,060
This Delta deal was found by Cheapflights users on 2/14. 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.
Tue 6/27:00 am
DFW
-
SOU
2 stops27h 50m
Delta
Mon 6/85:20 pm
SOU
-
DFW
2 stops30h 26m
Delta
Deal found 2/14$1,062

Find flight deals from Dallas to Portsmouth

Keep the following information in mind while searching for Dallas to Portsmouth flight deals. Data was last updated February 16, 2026.

Round-trip from

$874
(Delta)

One-way from

$371
(oojo)

Popular in

June

Cheapest in

October

Average price

$785
From Dallas to Portsmouth
Search Deals
One-way flight from Dallas to Portsmouth
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($233 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 16, 2026.
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

Wed 5/6

11:16 am-4:50 pm

2 stops23h 34m

Southampton Eastleigh

Tue 5/12

9:05 am-8:02 pm

2 stops16h 57m

$874

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 5/7

7:04 am-8:35 am

2 stops19h 31m

Southampton Eastleigh

Wed 5/13

9:05 am-8:02 pm

2 stops16h 57m

$939

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 5/7

8:15 am-8:35 am

2 stops18h 20m

Southampton Eastleigh

Thu 5/14

9:05 am-10:31 pm

2 stops19h 26m

$939

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 5/7

8:15 am-8:35 am

2 stops18h 20m

Southampton Eastleigh

Tue 5/12

5:20 pm-4:08 pm

2 stops28h 48m

$939

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 3/31

5:00 pm-4:50 pm

2 stops17h 50m

Southampton Eastleigh

Tue 4/7

9:05 am-9:57 pm

2 stops18h 52m

$945

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Thu 5/7

8:15 am-8:35 am

2 stops18h 20m

Southampton Eastleigh

Sun 5/10

9:15 am-9:26 pm

2 stops18h 11m

$1,004

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 3/31

7:05 pm-7:30 pm

1 stop18h 25m

Southampton Eastleigh

Tue 4/7

8:00 pm-1:10 pm

1 stop23h 10m

$1,013

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Sun 3/29

5:30 am-4:35 pm

2 stops29h 05m

Southampton Eastleigh

Sun 4/5

8:00 pm-7:50 am

2 stops41h 50m

$1,060

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 6/2

7:00 am-4:50 pm

2 stops27h 50m

Southampton Eastleigh

Mon 6/8

5:20 pm-5:46 pm

2 stops30h 26m

$1,062

DallasSouthampton

DFW - SOU

DFWSOU

Dallas/Fort Worth

Tue 6/2

11:16 am-4:50 pm

2 stops23h 34m

Southampton Eastleigh

Tue 6/9

5:20 pm-5:46 pm

2 stops30h 26m

$1,062

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

Showing 1-10 of 15 results
1
2

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 $832). 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 February 16, 2026.

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 February 16, 2026.

The most flights from A78 to P0R are scheduled on a Friday (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (11 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 February 16, 2026.
Read through reviews of airlines operating flights from Dallas to Portsmouth, such as Aer Lingus. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.2
Good
1,452 reviews

Overall

7.2

Comfort

7.1

Crew

8.1

Entertainment

7.0

Food

6.6

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.
Aer Lingus
7.2
Good
1,452 reviews
Aer Lingus
7.2
Good
1,452 reviews

Overall

7.2

Comfort

7.1

Crew

8.1

Entertainment

7.0

Food

6.6

Boarding

7.4

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

SFO - DUB

The boarding went smoothly, the crew were great and helped me with an extra pillow, the food was good including complementary wine with dinner (economy seating), and I was able to sleep. The flight arrived early which helped with connections. Overall a great experience.

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 $874, Delta can have you in Portsmouth from Dallas in 23h 34m. Airlines will cover a distance of 4717 mi.

  • 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: Gulf Air (58%), Malaysia Airlines (56%), Royal Jordanian( 56%).

  • What are the cheapest flights from Dallas to Portsmouth?

    Looking at all options, your cheapest flight can be booked for $223. While the most popular route (Dallas/Fort Worth - Southampton Eastleigh) can be booked for $939 on average, our data indicates $2,866 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 $832). 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 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 February 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$116Average$659FlexibilityNo cancel feeOn-time62%
British AirwaysCheapest$517Average$996FlexibilityNo cancel feeOn-time70%
DeltaCheapest$568Average$894FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$571Average$981FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$576Average$733FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$585Average$1,036FlexibilityNo cancel feeOn-time71%
FinnairCheapest$605Average$929FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$623Average$863FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$628Average$868FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$636Average$1,041FlexibilityNo cancel feeOn-time76%

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