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Cheap flights from Porto to Las Vegas from $517

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Las Vegas departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Porto to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
12:45 pm - 11:45 am
LAS
-
OPO
15h 00m
1 stop
$816Air Transat
Mon, May 4 - Mon, May 11
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
12:45 pm - 11:45 am
LAS
-
OPO
15h 00m
1 stop
$856Air Transat
Mon, May 4 - Wed, May 13
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
12:45 pm - 11:45 am
LAS
-
OPO
15h 00m
1 stop
$887Air Transat
Mon, May 4 - Wed, May 13
Delta Logo
11:25 am - 6:35 pm
OPO
-
LAS
15h 10m
1 stop
Delta Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$891Delta
Fri, Apr 3 - Sat, Apr 18
KLM Logo
5:00 am - 3:27 pm
OPO
-
LAS
18h 27m
2 stops
KLM Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$896KLM
Mon, May 4 - Wed, May 13
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
$898KLM
Sat, Apr 4 - Sat, Apr 18
Delta Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
Delta Logo
9:55 am - 3:25 pm
LAS
-
OPO
21h 30m
2 stops
$899Delta
Sun, Apr 5 - Sat, Apr 18
Multiple Airlines Logo
7:00 pm - 6:35 pm
OPO
-
LAS
31h 35m
1 stop
Multiple Airlines Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$900Multiple Airlines
Sun, May 3 - Wed, May 13
Delta Logo
11:25 am - 12:24 am
OPO
-
LAS
20h 59m
2 stops
Delta Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$901Delta
Mon, May 4 - Wed, May 13
KLM Logo
4:20 pm - 6:35 pm
OPO
-
LAS
34h 15m
1 stop
KLM Logo
8:25 pm - 6:20 pm
LAS
-
OPO
13h 55m
1 stop
$903KLM
Mon, May 4 - Tue, May 12

United Airlines flights from Porto to Las Vegas

Our best United Airlines deals on Porto to Las Vegas flight tickets
United Airlines
May 20
OPO6:00 amPorto
18h 20m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
May 30
LAS9:56 amLas Vegas Harry Reid Intl
15h 49m
1 stop
OPO9:45 amPorto
$919
United Airlines
May 20
OPO6:00 amPorto
18h 20m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
May 30
LAS9:56 amLas Vegas Harry Reid Intl
12h 59m
1 stop
OPO6:55 amPorto
$924
United Airlines
May 20
OPO6:00 amPorto
18h 20m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
May 29
LAS12:36 amLas Vegas Harry Reid Intl
22h 19m
2 stops
OPO6:55 amPorto
$930

Lufthansa flights from Porto to Las Vegas

Our best Lufthansa deals on Porto to Las Vegas flight tickets
Lufthansa
Apr 3
OPO12:05 pmPorto
19h 06m
2 stops
LAS11:11 pmLas Vegas Harry Reid Intl
Apr 18
LAS9:10 pmLas Vegas Harry Reid Intl
18h 15m
2 stops
OPO11:25 pmPorto
$953
Lufthansa
Apr 5
OPO6:20 amPorto
19h 03m
2 stops
LAS5:23 pmLas Vegas Harry Reid Intl
Apr 18
LAS9:10 pmLas Vegas Harry Reid Intl
18h 15m
2 stops
OPO11:25 pmPorto
$974
Lufthansa
Mar 21
OPO12:55 pmPorto
36h 05m
2 stops
LAS6:00 pmLas Vegas Harry Reid Intl
Mar 27
LAS11:36 pmLas Vegas Harry Reid Intl
26h 09m
1 stop
OPO8:45 amPorto
$1,452

momondo Fare Finder

 
Customize your flight search to find flights from Porto to Las Vegas 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, momondo users made 832,500 searches. Data last updated March 19, 2026.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Mon 5/11

12:45 pm-11:45 am

1 stop15h 00m

$816

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 5/13

12:45 pm-11:45 am

1 stop15h 00m

$856

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 5/13

12:45 pm-11:45 am

1 stop15h 00m

$887
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 4/3

11:25 am-6:35 pm

1 stop15h 10m

Las Vegas Harry Reid Intl

Sat 4/18

5:50 pm-10:00 pm

1 stop20h 10m

$891

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

5:00 am-3:27 pm

2 stops18h 27m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:00 pm

1 stop20h 10m

$896

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 4/4

4:20 pm-6:35 pm

1 stop34h 15m

Las Vegas Harry Reid Intl

Sat 4/18

5:50 pm-10:00 pm

1 stop20h 10m

$898

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 4/5

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Sat 4/18

9:55 am-3:25 pm

2 stops21h 30m

$899

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 5/3

7:00 pm-6:35 pm

1 stop31h 35m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:00 pm

1 stop20h 10m

$900

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

11:25 am-12:24 am

2 stops20h 59m

Las Vegas Harry Reid Intl

Wed 5/13

5:50 pm-10:00 pm

1 stop20h 10m

$901

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

4:20 pm-6:35 pm

1 stop34h 15m

Las Vegas Harry Reid Intl

Tue 5/12

8:25 pm-6:20 pm

1 stop13h 55m

$903

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Las Vegas from

How to get the cheapest flight ticket from Porto to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on Porto to Las Vegas flights?

You could potentially save up to 50% on your flight if you consider stops on a Porto to Las Vegas flight.

When to book flights from Porto to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Las Vegas (OPO to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Porto to Las Vegas

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Porto to Las Vegas takes 15h 10m
There are no direct flights from Porto to Las Vegas. There are no popular flight routes from Porto to Las Vegas.
Search flight deals

  • How far is Porto to Las Vegas Harry Reid Intl by plane?

    The straight-line distance from Porto to Las Vegas Harry Reid Intl is 5353.7 mi. Typically, this will take 15h 10m by plane in normal conditions.

  • When did momondo last update prices for flights from Porto Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Porto Airport to Las Vegas Harry Reid Intl Airport refresh daily.

  • How old do you have to be to fly from Porto Airport to Las Vegas Harry Reid Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Porto Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
Needles

Why use momondo?

Why should I use momondo to find a flight deal from Porto to Las Vegas?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Porto to Las Vegas. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Porto to Las Vegas with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Porto to Las Vegas flights to just show those with flexible booking policies.

How can momondo help me find flights from Porto to Las Vegas?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Las Vegas from Porto.

I’m not ready to book a flight from Porto to Las Vegas right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Porto to Las Vegas now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Las Vegas and let you know when they change.

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