$366 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 6/2. 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
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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

Sun, Jun 7 - Sat, Jun 20
Air Transat Logo
11:35 am - 11:42 am
LIS
-
LAS
32h 07m
1 stop
Air Transat Logo
11:15 pm - 9:35 am
LAS
-
LIS
26h 20m
1 stop
$752Air Transat
Sat, Apr 25 - Sat, May 2
Multiple Airlines Logo
10:55 pm - 5:15 pm
LIS
-
LAS
26h 20m
3 stops
Multiple Airlines Logo
10:33 pm - 3:35 pm
LAS
-
LIS
33h 02m
2 stops
$759Multiple Airlines
Sat, Apr 25 - Sat, May 2
Multiple Airlines Logo
10:55 pm - 5:15 pm
LIS
-
LAS
26h 20m
3 stops
Multiple Airlines Logo
10:33 pm - 3:35 pm
LAS
-
LIS
33h 02m
3 stops
$762Multiple Airlines
Fri, Apr 24 - Fri, May 8
Air Transat Logo
9:35 am - 10:00 pm
LIS
-
LAS
20h 25m
1 stop
Air Transat Logo
4:30 pm - 9:35 am
LAS
-
LIS
33h 05m
1 stop
$807Air Transat
Fri, Apr 3 - Sat, Apr 18
Multiple Airlines Logo
1:00 pm - 9:33 pm
LIS
-
LAS
40h 33m
2 stops
Multiple Airlines Logo
8:05 am - 11:05 am
LAS
-
LIS
19h 00m
2 stops
$829Multiple Airlines
Fri, Apr 24 - Fri, May 8
Air Transat Logo
9:35 am - 10:00 pm
LIS
-
LAS
20h 25m
1 stop
Air Transat Logo
4:30 pm - 9:35 am
LAS
-
LIS
33h 05m
1 stop
$846Air Transat
Fri, Apr 3 - Sat, Apr 18
Delta Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
Delta Logo
10:23 am - 3:25 pm
LAS
-
OPO
21h 02m
2 stops
$879Delta
Fri, Apr 3 - Sat, Apr 18
KLM Logo
4:20 pm - 6:35 pm
OPO
-
LAS
34h 15m
1 stop
KLM Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$881KLM
Sat, Apr 4 - Sat, Apr 18
KLM Logo
7:00 pm - 6:35 pm
OPO
-
LAS
31h 35m
1 stop
KLM Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$882KLM
Fri, Apr 3 - Sat, Apr 18
Delta Logo
5:00 am - 7:55 pm
OPO
-
LAS
22h 55m
2 stops
Delta Logo
10:23 am - 3:25 pm
LAS
-
OPO
21h 02m
2 stops
$884Delta
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 flight to Las Vegas?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the cheapest flight deal to Las Vegas was found on the route from Lisbon, at $752 return. The most popular connection is from Chicago to Las Vegas and KAYAK users have found round-trip deals for as low as $150 in the last 3 days.

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 $771 on average for return flights. On the other hand, the most expensive months are March and August, where the average cost of tickets from Portugal is $1,123 and $1,077 respectively. For one-way flights, the best month to travel is September with an average price of $771.

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 3 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 19 weeks before departure.

Find deals

Good to know

Low seasonFebruary
Cheapest flight$366
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Lisbon to Las Vegas

FAQs - booking Las Vegas flights

  • What is the cheapest flight to Las Vegas?

    In the last 3 days, the cheapest flight deal to Las Vegas was found on the route from Lisbon, at $752 return. The most popular connection is from Chicago to Las Vegas and KAYAK users have found round-trip deals for as low as $150 in the last 3 days.

  • 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 5,812 direct flights from within Portugal to Las Vegas. The most common day for departures is Sunday, with 16% 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 8286 reviews
8.5Crew
7.9Comfort
7.8Entertainment
8.1Boarding
7.2Food
Airline reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

2.0 MediocreIsabella, Mar 2026
SLC - AUS
Read more Delta reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

I wish the inflight entertainment system options were broader, but overall this was a fantastic crew and I can’t express how cheerful, welcoming, and attentive they were.

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
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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)