Portugal

$331+ Cheap flights from Las Vegas (LAS) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — LIS
Aug 3 — Aug 101
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Cheap flight deals from Las Vegas to Portugal

Cheapest flights from Las Vegas to Portugal
Explore the most affordable flight options available from Las Vegas to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 4, 2026.

This FlightHub deal was found by Cheapflights users on 6/30. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/252:35 pm
LAS
-
LIS
1 stop32h 10m
Air Transat
Thu 12/39:00 am
LIS
-
LAS
1 stop36h 37m
Air Transat
Deal found 6/30$739
This CheapOair deal was found by Cheapflights users on 7/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:50 am
LAS
-
LIS
1 stop14h 50m
Multiple Airlines
Fri 11/275:00 am
LIS
-
LAS
2 stops24h 40m
Multiple Airlines
Deal found 7/1$741
This United Airlines deal was found by Cheapflights users on 7/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am
LAS
-
LIS
2 stops18h 10m
United Airlines
Thu 12/35:00 am
LIS
-
LAS
1 stop17h 35m
United Airlines
Deal found 7/3$742
This United Airlines deal was found by Cheapflights users on 7/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/612:30 am
LAS
-
LIS
2 stops26h 10m
United Airlines
Thu 12/105:00 am
LIS
-
LAS
1 stop17h 35m
United Airlines
Deal found 7/2$746
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/168:55 pm
LAS
-
LIS
1 stop17h 00m
British Airways
Fri 11/2710:40 am
LIS
-
LAS
1 stop16h 10m
British Airways
Deal found 6/30$755
This Air Canada deal was found by Cheapflights users on 6/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:20 am
LAS
-
LIS
2 stops19h 20m
Air Canada
Thu 12/108:55 am
LIS
-
LAS
1 stop34h 00m
Air Canada
Deal found 6/29$757
This Delta deal was found by Cheapflights users on 7/3. 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.
Wed 11/2511:30 am
LAS
-
LIS
2 stops19h 40m
Delta
Thu 12/35:00 am
LIS
-
LAS
2 stops21h 46m
Delta
Deal found 7/3$758
This Delta deal was found by Cheapflights users on 7/3. 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.
Tue 11/247:05 am
LAS
-
LIS
1 stop16h 55m
Delta
Tue 12/15:00 am
LIS
-
LAS
1 stop17h 15m
Delta
Deal found 7/3$775
This United deal was found by Cheapflights users on 7/1. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
LAS
-
FNC
1 stop17h 05m
Multiple Airlines
Tue 8/253:40 pm
FNC
-
LAS
1 stop32h 40m
Multiple Airlines
Deal found 7/1$945
This Air France deal was found by Cheapflights users on 6/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:55 pm
LAS
-
FAO
2 stops19h 45m
Multiple Airlines
Thu 8/209:05 pm
FAO
-
LAS
2 stops26h 52m
Multiple Airlines
Deal found 6/29$983
This Booking.com deal was found by Cheapflights users on 7/2. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:51 am
LAS
-
FAO
2 stops19h 14m
Multiple Airlines
Sun 8/237:00 pm
FAO
-
LAS
1 stop29h 25m
Multiple Airlines
Deal found 7/2$984
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:25 pm
LAS
-
FAO
2 stops31h 40m
Multiple Airlines
Tue 9/293:55 pm
FAO
-
LAS
2 stops31h 55m
Multiple Airlines
Deal found 7/1$990

Find flight deals from Las Vegas to Portugal

Keep the following information in mind while searching for Las Vegas to Portugal flight deals. Data was last updated July 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$722
(Trip.com)

One-way from

$331
(oojo)

Popular in

August

Cheapest in

April

Average price

$994
Provider with most accurate pricing for Las Vegas Harry Reid Intl-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for Las Vegas Harry Reid Intl-Lisbon Humberto Delgado flights.
From Las Vegas Harry Reid Intl to Portugal
One-way flight from Las Vegas Harry Reid Intl to Portugal
Highest demand for flights based on searches. 11% potential increase in price ($117 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average RT price).
Average for round-trip flights in July 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Portugal 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 July 4, 2026.
Use the filters below to find and compare flights from Las Vegas to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Mon 12/7

7:10 am-8:10 am

1 stop17h 00m

Lisbon Humberto Delgado

Thu 12/10

5:00 am-2:35 pm

1 stop17h 35m

$742

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 11/24

11:38 am-8:10 am

1 stop12h 32m

Lisbon Humberto Delgado

Tue 12/1

12:50 pm-12:40 pm

2 stops31h 50m

$776

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Fri 11/13

11:59 pm-8:10 am

1 stop24h 11m

Lisbon Humberto Delgado

Wed 11/18

11:20 am-11:22 am

1 stop32h 02m

$802

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Mon 11/16

11:16 am-10:05 am

3 stops38h 49m

Lisbon Humberto Delgado

Mon 11/30

11:20 am-4:08 pm

2 stops36h 48m

$852

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Thu 9/24

11:53 am-2:55 pm

2 stops19h 02m

Lisbon Humberto Delgado

Tue 9/29

10:00 am-5:45 pm

1 stop15h 45m

$890

Las VegasLisbon

LAS - LIS

LASLIS

Las Vegas Harry Reid Intl

Tue 9/8

7:05 am-8:00 am

1 stop16h 55m

Lisbon Humberto Delgado

Thu 9/24

3:35 pm-6:35 pm

1 stop35h 00m

$936

Las VegasFunchal

LAS - FNC

LASFNC

Las Vegas Harry Reid Intl

Tue 8/18

7:00 am-8:05 am

1 stop17h 05m

Funchal Madeira

Tue 8/25

3:40 pm-4:20 pm

1 stop32h 40m

$945

Las VegasFaro

LAS - FAO

LASFAO

Las Vegas Harry Reid Intl

Sun 8/16

11:51 am-3:05 pm

2 stops19h 14m

Faro

Sun 8/23

7:00 pm-4:25 pm

1 stop29h 25m

$984

Las VegasFaro

LAS - FAO

LASFAO

Las Vegas Harry Reid Intl

Sat 9/19

11:25 pm-3:05 pm

2 stops31h 40m

Faro

Tue 9/29

3:55 pm-3:50 pm

2 stops31h 55m

$990

Las VegasFaro

LAS - FAO

LASFAO

Las Vegas Harry Reid Intl

Sun 8/16

7:00 am-9:55 am

1 stop18h 55m

Faro

Sun 8/23

3:25 pm-11:54 pm

3 stops40h 29m

$1,006

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

Showing 1-10 of 28 resultsSorted by cheapest first
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Best time to book a flight from Las Vegas to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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 Portugal

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

Currently, April is the cheapest month in which you can book a flight from Las Vegas to Portugal (average of $485). Flying from Las Vegas to Portugal in July is currently the most expensive (average of $764). 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.

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

To ensure you get the cheapest price possible for a flight from Las Vegas to Portugal, you should look to book at least 40 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated July 4, 2026.
Read reviews from past customers who have flown KLM,Delta, andAir Transat from Las Vegas to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Entertainment

7.2

Crew

8.4

Overall

7.8

Food

7.3

Comfort

7.7

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

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

    For a flight from Las Vegas to Portugal, you will be flying from Harry Reid Intl. Las Vegas Harry Reid Intl (LAS) is just 6.2 mi from the center of the city.

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

    Air Transat, Porter Airlines, and United Airlines can get you from Las Vegas to Portugal in just under 15h 50m. Your travel time can differ by up to 16h 20m. The distance between Las Vegas and Portugal is about 5437 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Las Vegas to Portugal one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $238. However, be on the lookout for offers from Air Canada and British Airways, as they are both options that can get you from Las Vegas to Portugal for a low price.

  • What are the most popular routes from Las Vegas to Portugal?

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Las Vegas to Portugal (average of $485). Flying from Las Vegas to Portugal in July is currently the most expensive (average of $764). 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 7 airlines flying from Las Vegas to Portugal

Discover the top 7 airlines that operate flights from Las Vegas to Portugal. 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 July 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$485Average$1,086FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$493Average$757FlexibilityNo cancel feeOn-time77%
DeltaCheapest$498Average$1,102FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$503Average$855FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$504Average$1,193FlexibilityNo cancel feeOn-time67%
British AirwaysCheapest$505Average$728FlexibilityNo cancel feeOn-time70%
Air TransatCheapest$682Average$964FlexibilityNo cancel feeOn-time50%

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