$349 Find Cheap Flights from Portugal to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Las Vegas departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Las Vegas

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Las Vegas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Las Vegas, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portugal to Las Vegas

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portugal to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portugal to Las Vegas

Thu, Apr 9 - Thu, Apr 23
Air Transat Logo
9:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:05 pm - 8:05 am
LAS
-
OPO
25h 00m
1 stop
$718Air Transat
Mon, Jun 1 - Sun, Jun 7
Multiple Airlines Logo
11:35 am - 10:30 pm
LIS
-
LAS
18h 55m
2 stops
Multiple Airlines Logo
11:25 pm - 9:35 am
LAS
-
LIS
26h 10m
2 stops
$743Multiple Airlines
Thu, Mar 26 - Thu, Apr 9
Air Transat Logo
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:45 pm - 8:05 am
LAS
-
OPO
24h 20m
1 stop
$749Air Transat
Thu, Apr 9 - Thu, Apr 23
Air Transat Logo
9:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:05 pm - 8:05 am
LAS
-
OPO
25h 00m
1 stop
$750Air Transat
Thu, Apr 9 - Thu, Apr 23
Air Transat Logo
9:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:05 pm - 8:05 am
LAS
-
OPO
25h 00m
1 stop
$757Air Transat
Thu, Apr 9 - Thu, Apr 23
Air Transat Logo
9:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:05 pm - 8:05 am
LAS
-
OPO
25h 00m
1 stop
$758Air Transat
Thu, Mar 26 - Thu, Apr 2
Air Transat Logo
8:50 am - 10:42 pm
OPO
-
LAS
20h 52m
1 stop
Air Transat Logo
11:55 pm - 8:05 am
LAS
-
OPO
24h 10m
1 stop
$764Air Transat
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
6:15 am - 10:40 pm
LIS
-
LAS
24h 25m
2 stops
Multiple Airlines Logo
6:15 am - 10:15 pm
LAS
-
LIS
32h 00m
3 stops
$797Multiple Airlines
Wed, Jun 3 - Thu, Jun 11
Air Transat Logo
8:15 am - 11:42 am
LIS
-
LAS
35h 27m
2 stops
Air Transat Logo
12:45 pm - 6:30 am
LAS
-
LIS
33h 45m
2 stops
$830Air Transat
Mon, May 4 - Wed, May 13
KLM Logo
7:45 pm - 6:35 pm
LIS
-
LAS
30h 50m
1 stop
KLM Logo
8:25 pm - 2:35 pm
LAS
-
LIS
34h 10m
1 stop
$870KLM
Booking Insights

KAYAK's insights & trends for flights to Las Vegas

Get data-powered insights and trends for flights to Las Vegas to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Las Vegas?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Las Vegas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Las Vegas is September, where tickets cost $775 on average for one-way flights. On the other hand, the most expensive months are August and March, where the average cost of tickets from Portugal is $1,100 and $1,071 respectively. For return trips, the best month to travel is September with an average price of $775.

How far in advance should I book a flight to Las Vegas?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Las Vegas, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 4 days before departure.

Find deals

Good to know

Low seasonDecember
Cheapest flight$349
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Lisbon to Las Vegas

FAQs - booking Las Vegas flights

  • How far is Las Vegas Harry Reid Intl Airport from central Las Vegas?

    You’ll need to travel 6 miles to reach the Las Vegas city center from Las Vegas Harry Reid Intl Airport.

  • What is the name of Las Vegas’s airport?

    There is only 1 airport in Las Vegas, called Las Vegas Harry Reid Intl Airport (LAS). It can also be referred to as Harry Reid Intl, Las Vegas Mccarran, McCarran, or McCarran Intl.

  • How does KAYAK find such low prices on flights to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Las Vegas are there each week?

    Each week there are around 4,813 direct flights from within Portugal to Las Vegas. The most common day for departures is Monday, with 18% of flights taking off on this day.

Top tips for finding cheap flights to Las Vegas

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Las Vegas flight deals.

Reviews of the top airline flying from Portugal to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Portugal to Las Vegas. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8239 reviews
7.8Entertainment
8.5Crew
7.2Food
7.9Comfort
8.1Boarding
Airline reviews

2+hrs delay without any reason provided and a cramped flight

2.0 MediocreYogendra Kumar, Feb 2026
DTW - MDT
Read more Delta reviews

2+hrs delay without any reason provided and a cramped flight

We waited an hour on the runway to get a gate in Orlando

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

Flight was delayed due to crew being not on time

Flight crew issues delayed my flight by 2 1/2 hours. Causing me to miss my connection.

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

The staff was frielndly. The plane was terrible, it was too small and should be decommissioned. There were no back seat screens at all. The only beverages we had a choice from was coffee, tea or water. The only bathroom in the back was behind the flight attendant's jump seat and wasn't working. And I literally felt like I was sitting on top of the guy next to me. It was terribly hot in the plane and we had to sit on the tarmac in Chicago for 1/2 hour due to congestion in Mpls. Wouldn't they have know that before they even boarded us so that we could have sat in comfort in the terminal?

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

Delta has too many delays now days. It is 1:06 am now. I was supposed to land in Norfolk at 10:30 pm. I got re-booked through Detroit and I’m still in Detroit. I hope to be landed in Norfolk by 3am. I’ve been in airports for 12 hours as of right now. There is a weather delay now but most delays lately have been maintenance.

Very Very late. Subsequent flights left an hour before ours

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Primm
Winchester
Sunrise Manor

Everything you need to know for your flight to Las Vegas

Information on the airport you'll fly into in Las Vegas

Las Vegas (LAS)