$326 Find Cheap Flights from Las Vegas to Portugal - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Las Vegas to Portugal departing on 11/22. 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.
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Cheap Flights from Las Vegas to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon1 stop$716
Porto
Porto2 stops$734
Faro
Faro1 stop$941
Funchal
Funchal1 stop$894
Lisbon
Lisbon1 stop$716
Porto
Porto2 stops$734
Faro
Faro1 stop$941
Funchal
Funchal1 stop$894

Book Cheap Las Vegas to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Las Vegas to Portugal 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 Las Vegas to Portugal

Mon, Nov 16 - Fri, Nov 27
Air Canada Logo
11:50 am - 10:40 am
LAS
-
LIS
14h 50m
1 stop
Air Canada Logo
11:20 am - 10:55 am
LIS
-
LAS
31h 35m
1 stop
$716Air Canada
Mon, Nov 16 - Fri, Nov 27
Air Canada Logo
11:50 am - 10:40 am
LAS
-
LIS
14h 50m
1 stop
Air Canada Logo
11:20 am - 10:47 pm
LIS
-
LAS
19h 27m
2 stops
$724Air Canada
Wed, Nov 25 - Thu, Dec 3
Air Transat Logo
2:35 pm - 6:45 am
LAS
-
LIS
32h 10m
1 stop
Air Transat Logo
9:00 am - 1:37 pm
LIS
-
LAS
36h 37m
1 stop
$743Air Transat
Wed, Nov 25 - Thu, Dec 3
Lufthansa Logo
11:53 am - 1:20 pm
LAS
-
LIS
17h 27m
2 stops
Lufthansa Logo
5:00 am - 2:35 pm
LIS
-
LAS
17h 35m
1 stop
$743Lufthansa
Wed, Nov 25 - Thu, Dec 3
Lufthansa Logo
11:55 am - 1:20 pm
LAS
-
LIS
17h 25m
2 stops
Lufthansa Logo
5:00 am - 2:35 pm
LIS
-
LAS
17h 35m
1 stop
$743Lufthansa
Wed, Nov 25 - Thu, Dec 3
United Airlines Logo
7:45 am - 10:20 am
LAS
-
LIS
18h 35m
1 stop
United Airlines Logo
5:00 am - 2:35 pm
LIS
-
LAS
17h 35m
1 stop
$747United Airlines
Wed, Nov 25 - Thu, Dec 3
United Airlines Logo
6:00 am - 8:10 am
LAS
-
LIS
18h 10m
2 stops
United Airlines Logo
5:00 am - 2:35 pm
LIS
-
LAS
17h 35m
1 stop
$747United Airlines
Tue, Dec 1 - Tue, Dec 8
KLM Logo
7:05 am - 8:00 am
LAS
-
LIS
16h 55m
1 stop
KLM Logo
5:00 am - 2:15 pm
LIS
-
LAS
17h 15m
1 stop
$749KLM
Thu, Oct 8 - Fri, Oct 16
KLM Logo
8:25 pm - 6:45 pm
LAS
-
LIS
14h 20m
1 stop
KLM Logo
5:00 am - 6:35 pm
LIS
-
LAS
21h 35m
1 stop
$874KLM
Thu, Sep 10 - Thu, Sep 17
Air Transat Logo
9:45 am - 9:35 am
LAS
-
LIS
15h 50m
1 stop
Air Transat Logo
11:35 am - 10:22 pm
LIS
-
LAS
18h 47m
1 stop
$896Air Transat
Booking Insights

KAYAK's insights & trends for Las Vegas to Portugal flights

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

What is the cheapest month to fly from Las Vegas to Portugal?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Las Vegas to Portugal, 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 from Las Vegas to Portugal is April, when tickets cost $649 (return) on average. On the other hand, the most expensive months are August and May, when the average cost of round-trip tickets is $1,267 and $1,187 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Las Vegas to Portugal, 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 on the flight from Las Vegas to Portugal, you should book around 2 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low season

January

Cheapest flight

$326
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 26% increase in price.
Flight from Las Vegas to Lisbon

FAQs - booking Portugal flights

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

    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 from Las Vegas to Portugal.

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

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

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

    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 from Las Vegas to Portugal 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 from Las Vegas to Portugal?

    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 from Las Vegas to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Las Vegas to Portugal

 
Need help choosing which airline to fly with from Las Vegas to Portugal? 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.
7.8
KLMOverall score based on 1550 reviews
7.8Boarding
7.2Entertainment
8.4Crew
7.3Food
7.7Comfort
Airline reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

10.0 ExcellentEmily, Jul 2026
ORD - MSP
Read more KLM reviews

I think I previously submitted my feedback about flight lead Katherine in a different field by mistake. Please see those comments. Comments for Hyd to AMS are it was good. The flight lead and service met expectations for satisfactory high quality service but the flight lead did not stand out as exceptional as did the leads on the other two flights so I don’t remember anything specific one way or the other besides the fact I was satisfied.

Had to cancel and rebook, KLM connection was cancelled prior to departure, ended up flying to Munich on non-Delta carrier.

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

Transfer at CDG to connecting KLM flight to Amsterdam was a NIGHTMARE. LONG WALKWAYS, NO MOVING WALKWAYS, POOR signage, Have to take a train & No staff visible to help navigate the maze. AVOID TRANSFER AT CDG AT ALL COST.

Delta is always a wonderful experience. A clean plane and the crew is really friendly.

Air travel sucks. It continues to be awful for all airlines. No shame on delta alone.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

Overall Delta was amazing from automatically booking us on the next flight once we missed our connection due to a delay to the constant communication throughout the entire process. We will continue to fly Delta going forward more and pay a little more if needed.

Long line to check bags. Curbside check-in was closed. Seat back monitor was not working.

Left on time. Arrived on time. That’s all i ask.

AC barely worked on a 50 minute flight. It was very warm the whole flight. Flight was very bumpy and hard landing.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

The dinner was bland and boring, but the economy seats were surprisingly comfortable. The flight was very packed.

We are a senior couple (70+) and chose emergency exit seats so we would have 2 seats together and neither of us had to sit in a middle seat. My husband is type 1 diabetic on an insulin pump and I monitor his blood sugar levels. I am 5'9" and 250 lbs and found the seats extremely uncomfortable. Toward the end of the flight I developed diarrhea which lasted a full 24 hours.

I was very nice to arrive earlier than scheduled. Very much appreciated. No issues with flight. All was good.

Nice complete meal included and great services. Plus the plane was very clean.

The crew were polite and courteous. The Pilot did an excellent landing. It was very smooth and gentle. My only regret is that I was charged twice for my luggage . The attendant gave me no receipt . I didn't realize until I was about to board. How can this be resolved? Thank you.

Very smooth flights Toronto to Rome and return. Crews were great, food was fine but very narrow seats and limited leg room. Aisle seats on our return helped with a bit more space.

YUL AIRPORT is the worst. 1 Hr to Get out of the plane, 1 Hr To Cross the Border. 1Hr waiting to be pick up curbside. Trafic is ubeliveble.

Great flight and crew. Food isn't free and neither are headphones...

Once we got through the long line at security, everything was very good from boarding to exiting the place. The flight crew was very friendly. What Air Transat could do much better is to put us through to TSA Pre-Check since my wife and I are Nexus members. We have never enjoyed this privilege with Air Transat, but, we always get this with Air Canada at the FLL airport. So, this is possible to do.

Clean plane. Departed ahead of schedule, arrived early. Captain was informative- could clearly hear announcements and flight went as he told us. Could use some simple snack with free beverages. Consider comp with-go on planes.

We had to wait almost an hour for the wheelchair porter to be ready to pick up my mother. And when she arrived in Newark airport the porter was not there and she started walking with her cane and her poor mobility. When the Newark porter found her they didn't want to transfer her bags to the wheelchair for her.

Flight was 3 1/2 hour delayed with no credit or meal vouchers

The plane was so gross and dirty. Literally saw dust layering and flowing out the grey vents. Dust was all over the air vent knobs to the point where I took my sani wipe and cleaned them down so at least it wasn't blowing my my face. Also, I upgraded and paid for Wifi and it's always so spotty. I get we are in the air, but don't charge for it if it's not going to work. I expect so much more from United. They really are giving up.

Too many canceled flights and kept my wife and I separated on alternate flights. We did not fly out of Denver. We paid a lot of money for the seats we wanted and now that money is gone and we did not sit together. That being said, the many agents were very friendly and did everything possible to help us.

It was soooo hot I was sweating even at altitude. I know you want people to sleep, but keeping it that hot is stupid!

Your app is impossible to use. I couldn't load it. Then i couldn't open it. When i finally got both those things done -with much help -then i couldn't open the app to install a credit card. The upshot was 4 flights without access to food or drink. When i first tried to download united app some company called starlier opened instead and i would up signing up for some 49 dollar a month music service which i still have not been able to cancel.

I contacted both carriers months beforehand to change the cabin (booked in April) but to no avail (united asked to contact Swiss since it was their equipment, Swiss told me to reach out to united). So yeah… My seat was pretty worn down, legroom on 27K was more than enough, but still economy seating so, getting to know your neighbours was easy. According to ground staff, the flight was massively overbooked- and this showed. I ordered a gluten free meal beforehand (which was honoured) but for breakfast got a bread roll and croissant 🤷🏼‍♂️ The connection itself is great. Leaving SFO late PM to arrive at ZRH in the afternoon makes it easier to get re adjusted again. However, and since I’ve flown this connection a couple of times in the past, I will rather deal with one carrier only and include a layover on the east coast.

Nothing bad to say about the actual crew or airline. It was nice to have a complimentary FULL can of soda, as well as a snack. Blankets and earbuds were also provided at no cost for this red eye flight. I especially appreciated the free WiFi and movie selection with the Bluetooth option. It helped the flight pass more quickly. No matter who you fly, boarding and disembarking are always SUCH a pain. As I mentioned, this is on the passengers and not the crew!!

You can not pay credit Card for purchase Of food in airplane

Overall good experience. The positive: nice courteous crew. A modern aircraft, with extra space for carry on luggage. The okeish: Unfortunately, no entertainment screens, you have to you use your phone with the United App. The bad: in seat power was not working in our row, even it was promised as an onboard service. We were looking to charge our almost depleted phone batteries during g the flight This no power also happened in the flight to las Vegas. We paid extra to be in seats closer to the entrance. It was not advised that the seats we selected couldn't recline as behind us was was the emergency exit.

1st class seats NOT REALLY 1st class or business class but like premier economy. Should be listed as such or named something else. I have flown 1st class with other airlines and they are nothing like it at all.

It was not British Air, we were put onto Air Portugal for our London to Lisbon leg.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

Nice flight. Legroom was good. Food was good. Staff was friendly and helpful. Plane was modern and clean. Seats and headrests were comfortable. Entertainment system was good and modern, with a bright LCD screen and many appealing choices.

On this flight I was in BA business class. I am used to flying United Airlines Polaris class and I was underwhelmed by BA’s business suite class. A few things: - the lounge at LAS was very basic and crowded and the LHR/T3 lounge a bit better, but still not like the Polaris lounges - boarding was chaotic, no one knew what group was supposed to board - the suites were nice, but the padding was not really made for sleeping on - crew were friendly, but only really one tray/serving for the dinner service. None of “drink first, then dinner with 1-2 pourings of wine, then dessert”. UA might not be known for the best service in the industry, but compared to BA they are super attentive. During the BA flight there was no one checking in on you after you got your one tray. - arrival at LHR was busses taking us back to the terminal, surprising for a long flight. Once again chaotic. The bus for First/Business was completely packed with anyone who could get on and the driver was screaming at passengers to get every inch packed before he drove to the terminal. By the time I arrived I felt like BA had sold me a superior flight experience and delivered a mediocre economy class experience just because they can and do not really care about their customers. Very disappointing.

Wheel chair assistance was requested but found very poor status at London.

Despite many attempts to work out a change, neither British Airways nor Kayak nor Chatdeal would allow us to cancel or change this flight so we lost all of the payments when we were not able to fly. Absolutely terrible customer service. We will never use either of the services again.

The mobile app for BA could have been better. It did not update real time on gate chnage information at the airport.

Allow extra time if changing planes at Gatwick, UK. You have to go through customs, out of the departure area and then go back through airline check in, back through security and back to departure area. Departures is at the opposite end of the terminal area, about a quarter mile hike each direction. Poor signage also.

The flight connection information and management was ZERO. This was one of the reasons why we delayed the connecting flight. The crew was rushing with drinks and always miss something.

Everything you need to know for your flight from Las Vegas to Portugal

Information on your arrival and departure airports