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Cheap flights from Porto to Las Vegas from $431

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 9/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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 - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$727Air Transat
Mon, Jul 27 - Wed, Aug 12
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$748Air Transat
Thu, Jul 9 - Wed, Jul 22
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
9:45 am - 11:55 am
LAS
-
OPO
18h 10m
1 stop
$754Air Transat
Thu, Jul 9 - Wed, Jul 22
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$758Air Transat
Thu, Jul 2 - Thu, Jul 16
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$762Air Transat
Thu, Jul 2 - Thu, Jul 16
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$774Air Transat
Thu, Jul 2 - Thu, Jul 16
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
11:20 pm - 11:55 am
LAS
-
OPO
28h 35m
1 stop
$783Air Transat
Tue, Jul 21 - Tue, Jul 28
Air Transat Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Air Transat Logo
9:45 am - 11:55 am
LAS
-
OPO
18h 10m
1 stop
$787Air Transat
Thu, Jul 23 - Wed, Jul 29
Air Transat Logo
1:30 pm - 8:47 am
OPO
-
LAS
27h 17m
1 stop
Air Transat Logo
11:20 pm - 11:45 am
LAS
-
OPO
28h 25m
1 stop
$797Air Transat
Mon, Jul 27 - Wed, Aug 12
Multiple Airlines Logo
1:30 pm - 10:22 pm
OPO
-
LAS
16h 52m
1 stop
Multiple Airlines Logo
11:39 pm - 11:10 pm
LAS
-
OPO
39h 31m
2 stops
$804Multiple Airlines
Thu, Jul 23 - Fri, Jul 31

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Air Transat flights from Porto to Las Vegas

Our best Air Transat deals on Porto to Las Vegas flight tickets
Air Transat
Jul 27
OPO1:30 pmPorto
16h 52m
1 stop
LAS10:22 pmLas Vegas Harry Reid Intl
Aug 12
LAS11:20 pmLas Vegas Harry Reid Intl
28h 25m
1 stop
OPO11:45 amPorto
$727
Air Transat
Jul 9
OPO1:30 pmPorto
16h 52m
1 stop
LAS10:22 pmLas Vegas Harry Reid Intl
Jul 22
LAS11:20 pmLas Vegas Harry Reid Intl
28h 25m
1 stop
OPO11:45 amPorto
$748
Air Transat
Jul 9
OPO1:30 pmPorto
16h 52m
1 stop
LAS10:22 pmLas Vegas Harry Reid Intl
Jul 22
LAS9:45 amLas Vegas Harry Reid Intl
18h 10m
1 stop
OPO11:55 amPorto
$754

Delta flights from Porto to Las Vegas

Our best Delta deals on Porto to Las Vegas flight tickets
Delta
Sep 21
OPO5:00 amPorto
21h 46m
2 stops
LAS6:46 pmLas Vegas Harry Reid Intl
Sep 27
LAS7:05 amLas Vegas Harry Reid Intl
19h 20m
1 stop
OPO10:25 amPorto
$883
Delta
Sep 21
OPO5:00 amPorto
21h 46m
2 stops
LAS6:46 pmLas Vegas Harry Reid Intl
Sep 27
LAS7:05 amLas Vegas Harry Reid Intl
19h 20m
1 stop
OPO10:25 amPorto
$884
Delta
Sep 20
OPO6:30 amPorto
21h 11m
2 stops
LAS7:41 pmLas Vegas Harry Reid Intl
Sep 26
LAS5:50 pmLas Vegas Harry Reid Intl
20h 10m
1 stop
OPO10:00 pmPorto
$885

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 June 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 7/27

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Wed 8/12

11:20 pm-11:45 am

1 stop28h 25m

$727

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/9

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Wed 7/22

11:20 pm-11:45 am

1 stop28h 25m

$748
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/9

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Wed 7/22

9:45 am-11:55 am

1 stop18h 10m

$754

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/2

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Thu 7/16

11:20 pm-11:45 am

1 stop28h 25m

$758

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/2

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Thu 7/16

11:20 pm-11:45 am

1 stop28h 25m

$762

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/2

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Thu 7/16

11:20 pm-11:45 am

1 stop28h 25m

$774

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Tue 7/21

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Tue 7/28

11:20 pm-11:55 am

1 stop28h 35m

$783

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/23

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Wed 7/29

9:45 am-11:55 am

1 stop18h 10m

$787

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 7/27

1:30 pm-8:47 am

1 stop27h 17m

Las Vegas Harry Reid Intl

Wed 8/12

11:20 pm-11:45 am

1 stop28h 25m

$797

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 7/23

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Fri 7/31

11:39 pm-11:10 pm

2 stops39h 31m

$804

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

What is the typical price of a round-trip flight between Porto and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of February is, on average, the cheapest month to fly to Las Vegas from Porto, with most prices found around $0. The month of October is another great option to travel to Las Vegas, with average flight prices from Porto averaging around $852.

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

You could potentially save up to 26% 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

16h 52m

Direct flights

None
The fastest flight from Porto to Las Vegas takes 16h 52m
There are no direct flights from Porto to Las Vegas. There are no popular flight routes from Porto to Las Vegas.
Search flight deals

Frequently asked questions about flying from Porto to Las Vegas

  • 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 16h 52m 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
Paradise
Henderson
North Las Vegas
Kingman
Mesquite
Sunrise Manor
Pahrump
Furnace Creek
Boulder City
Primm
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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