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Portsmouth

$748+ 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 3/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — LHR
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
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 diciembre 15, 2025.

This KLM deal was found by Cheapflights users on 12/13. 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.
dom. 12/1412:01 pmLAS - SOU
2 stops21h 24mKLM
dom. 12/216:05 pmSOU - LAS
2 stops29h 48mKLM
Deal found 12/13$1,943
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:25 amLAS - SOU
2 stops18h 25mDelta
lun. 12/226:05 pmSOU - LAS
1 stop28h 10mDelta
Deal found 12/13$2,102
This Mytrip deal was found by Cheapflights users on 12/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/144:25 pmLAS - SOU
2 stops19h 15mMultiple Airlines
dom. 12/218:10 pmSOU - LAS
3 stops34h 20mMultiple Airlines
Deal found 12/13$2,558
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/196:25 amLAS - SOU
2 stops18h 25mDelta
dom. 12/219:30 amSOU - LAS
2 stops22h 29mDelta
Deal found 12/13$3,342

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 diciembre 15, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$748
(Delta)

Popular in

June

Cheapest in

February

Average price

$972
Provider with most accurate pricing for Las Vegas Harry Reid Intl-London (LON) flight deals.
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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 ($256 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 diciembre 15, 2025.
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

mar. 3/10

5:05 pm-5:00 pm

1 stop16h 55m

Southampton Eastleigh

lun. 3/16

5:35 pm-3:15 pm

1 stop28h 40m

$748

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

lun. 3/9

7:00 am-8:10 am

2 stops18h 10m

Southampton Eastleigh

lun. 3/16

5:35 pm-3:15 pm

1 stop28h 40m

$752

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

jue. 1/29

6:15 am-8:25 am

2 stops18h 10m

Southampton Eastleigh

jue. 2/5

9:00 am-2:15 pm

1 stop13h 15m

$752

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

mar. 1/27

4:05 pm-5:05 pm

1 stop17h 00m

Southampton Eastleigh

mar. 2/3

9:25 am-10:20 pm

2 stops20h 55m

$758

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

jue. 3/19

5:05 pm-8:50 am

1 stop32h 45m

Southampton Eastleigh

dom. 3/22

5:45 pm-6:08 pm

2 stops31h 23m

$758

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

jue. 3/19

5:05 pm-8:50 am

1 stop32h 45m

Southampton Eastleigh

lun. 3/23

5:35 pm-5:45 pm

2 stops31h 10m

$758

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

dom. 3/15

12:10 pm-8:05 am

2 stops36h 55m

Southampton Eastleigh

lun. 3/23

8:50 am-12:17 am

2 stops22h 27m

$762

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

jue. 3/12

9:45 am-8:05 am

2 stops15h 20m

Southampton Eastleigh

mar. 3/24

5:35 pm-9:10 pm

2 stops34h 35m

$762

Las VegasSouthampton

LAS - SOU

LASSOU

Las Vegas Harry Reid Intl

mar. 3/17

9:45 am-8:10 am

2 stops15h 25m

Southampton Eastleigh

mar. 3/24

5:35 pm-9:10 pm

2 stops34h 35m

$762

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

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 $412). 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 diciembre 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Las Vegas to Portsmouth in the evening. If you’re flexible enough to do this you can expect to save up to 25% on your trip compared to booking a flight in the morning.

What is the cheapest day to fly from Las Vegas to Portsmouth?

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

Travelers seeking maximum savings on their Las Vegas to Portsmouth flight should consider departing on Sunday afternoons 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 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 diciembre 15, 2025.

The most flights from LAS to P0R are scheduled on a Monday (9 on average). You will have fewer flight options on Tuesday, 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 diciembre 15, 2025.
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
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.3

Entertainment

7.9

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 11 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 Delta fly from Las Vegas to Portsmouth in about 16h 55m. 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: Air France (78%), Delta (78%), Virgin Atlantic( 78%).

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

    While on average a flight from Las Vegas to Portsmouth is generally $1,288, our data shows the cheapest flight currently is $368. When looking at the most popular route, (Las Vegas Harry Reid Intl - Southampton Eastleigh), you can expect to pay $752 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 $412). 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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
Norse Atlantic UKCheapest$418Average$464FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$542Average$967FlexibilityNo cancel feeOn-time72%
British AirwaysCheapest$549Average$834FlexibilityNo cancel feeOn-time70%
IberiaCheapest$596Average$1,121FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$598Average$776FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$610Average$790FlexibilityNo cancel feeOn-time67%
DeltaCheapest$616Average$1,005FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$639Average$898FlexibilityNo cancel feeOn-time71%
FinnairCheapest$685Average$916FlexibilityNo cancel feeOn-time76%
JetBlueCheapest$687Average$1,015FlexibilityNo cancel feeOn-time62%

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