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Portsmouth

$1,314+ Cheap flights from Las Vegas (LAS) to Portsmouth, England

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/13. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — LHR
Feb 27 — Mar 61
Fri 2/27
Fri 3/6
1 adult, Economy
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Cheap flight deals from Las Vegas to Portsmouth

Cheapest flights from Las Vegas to Portsmouth
Explore the most affordable flight options available from Las Vegas to Portsmouth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 28, 2026.

This Expedia deal was found by Cheapflights users on 1/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:59 pm
LAS
-
SOU
2 stops36h 36m
Multiple Airlines
Fri 3/208:10 pm
SOU
-
LAS
2 stops33h 41m
Multiple Airlines
Deal found 1/27$1,314
This Mytrip deal was found by Cheapflights users on 1/27. 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.
Sat 6/2712:35 pm
LAS
-
SOU
2 stops22h 55m
Multiple Airlines
Thu 7/99:10 am
SOU
-
LAS
2 stops21h 07m
Multiple Airlines
Deal found 1/27$1,398
This KLM deal was found by Cheapflights users on 1/27. 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.
Sat 6/278:25 pm
LAS
-
SOU
1 stop12h 25m
KLM
Thu 7/96:05 pm
SOU
-
LAS
1 stop32h 30m
KLM
Deal found 1/27$1,439
This KAYAK deal was found by Cheapflights users on 1/26. 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.
Sun 6/2810:24 am
LAS
-
SOU
2 stops25h 06m
Aer Lingus
Sat 7/189:10 am
SOU
-
LAS
2 stops22h 49m
Aer Lingus
Deal found 1/26$1,474
This KLM deal was found by Cheapflights users on 1/26. 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.
Sun 6/288:25 pm
LAS
-
SOU
1 stop12h 25m
KLM
Sat 7/189:15 am
SOU
-
LAS
1 stop17h 20m
KLM
Deal found 1/26$1,518
This Virgin Atlantic deal was found by Cheapflights users on 1/27. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:25 pm
LAS
-
SOU
1 stop12h 25m
Virgin Atlantic
Thu 7/99:15 am
SOU
-
LAS
2 stops22h 47m
Virgin Atlantic
Deal found 1/27$1,531

Find flight deals from Las Vegas to Portsmouth

Keep the following information in mind while searching for Las Vegas to Portsmouth flight deals. Data was last updated January 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,314
(Expedia)

Popular in

June

Cheapest in

February

Average price

$650
Provider with most accurate pricing for Las Vegas Harry Reid Intl-London (LON) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-London (LON) flights.
Search Deals
From Las Vegas Harry Reid Intl to Portsmouth
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($250 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas 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 January 28, 2026.
Use the filters below to find and compare flights from Las Vegas to Portsmouth that are best for you.

Fly from

Las Vegas

Fly to

Portsmouth

Route

Depart

Return

Price

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Fri 3/13

7:59 pm-3:35 pm

2 stops36h 36m

Southampton Eastleigh

Fri 3/20

4:05 pm-6:50 pm

1 stop33h 45m

$1,376

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Sat 6/27

8:00 am-7:30 pm

3 stops27h 30m

Southampton Eastleigh

Thu 7/9

9:10 am-10:17 pm

2 stops21h 07m

$1,403

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Sat 6/27

8:25 pm-4:50 pm

1 stop12h 25m

Southampton Eastleigh

Thu 7/9

6:05 pm-6:35 pm

1 stop32h 30m

$1,439

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Sun 6/28

8:25 pm-8:35 am

1 stop28h 10m

Southampton Eastleigh

Sat 7/18

5:30 pm-6:35 pm

1 stop33h 05m

$1,439

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Sun 6/28

10:24 am-7:30 pm

2 stops25h 06m

Southampton Eastleigh

Sat 7/18

9:10 am-11:59 pm

2 stops22h 49m

$1,474

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

Sat 6/27

8:25 pm-4:50 pm

1 stop12h 25m

Southampton Eastleigh

Thu 7/9

9:15 am-12:02 am

2 stops22h 47m

$1,531

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Best time to book a flight from Las Vegas to Portsmouth

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

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

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Portsmouth (average of $409). Flying from Las Vegas to Portsmouth in June is currently the most expensive (average of $983). 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 LAS to P0R?

Find hourly flight availability from Las Vegas 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 January 28, 2026.

When flying from Las Vegas 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 Las Vegas to Portsmouth

Explore weekly flight availability from Las Vegas 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 January 28, 2026.

The most flights from LAS to P0R are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (5 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 January 28, 2026.
Peruse reviews from past customers who have flown with Delta from Las Vegas to Portsmouth to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,123 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,123 reviews
Delta
7.9
Good
8,123 reviews

Boarding

8.1

Crew

8.5

Overall

7.9

Comfort

7.9

Entertainment

7.8

Food

7.2

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas 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 Las Vegas to Portsmouth?

    Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to Portsmouth. You should not have trouble finding flights to Portsmouth from Harry Reid Intl; the airport handles an average of 0 outbound flights to Portsmouth per day. You should also have plenty of airline options to choose from since 10 airlines have flights from the Las Vegas airport to Portsmouth. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.

  • How long is the flight from Las Vegas to Portsmouth?

    Airlines like KLM fly from Las Vegas to Portsmouth in about 12h 25m. The time it takes to get you to your destination can typically vary by up to . The distance between Las Vegas and Portsmouth is about 5206 mi.

  • What are the most reliable airlines from Las Vegas to Portsmouth?

    Before booking your flight to Portsmouth from Las Vegas, check out the most reliable airlines to get you to your destination on time: KLM (95%), Delta (95%), Virgin Atlantic( 95%).

  • What are the cheapest flights from Las Vegas to Portsmouth?

    While on average a flight from Las Vegas to Portsmouth is generally $1,430, our data shows the cheapest flight currently is $297. When looking at the most popular route, (Las Vegas Harry Reid Intl - Southampton Eastleigh), you can expect to pay $1,142 for that flight.

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

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

  • How can I find direct flights from Las Vegas to Portsmouth?

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

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

    Yes. Cheapflights offers flight deals from Las Vegas 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 Las Vegas to Portsmouth?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Portsmouth (average of $409). Flying from Las Vegas to Portsmouth in June is currently the most expensive (average of $983). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 10 airlines flying from Las Vegas to Portsmouth

Discover the top 10 airlines that operate flights from Las Vegas 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 January 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$436Average$464FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$542Average$985FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$549Average$799FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$566Average$888FlexibilityNo cancel feeOn-time71%
IberiaCheapest$596Average$1,182FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$598Average$776FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$610Average$698FlexibilityNo cancel feeOn-time67%
DeltaCheapest$615Average$1,005FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$638Average$1,015FlexibilityNo cancel feeOn-time62%
FinnairCheapest$685Average$916FlexibilityNo cancel feeOn-time76%

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