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Cheap flights from Porto to Las Vegas from $540

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 6/13. 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
11:15 pm - 11:45 am
LAS
-
OPO
28h 30m
1 stop
$793Air Transat
Mon, Jun 22 - Wed, Jul 8
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
11:15 pm - 11:45 am
LAS
-
OPO
28h 30m
1 stop
$820Air Transat
Thu, Jun 18 - Thu, Jul 2
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
11:15 pm - 11:45 am
LAS
-
OPO
28h 30m
1 stop
$889Air Transat
Thu, Jun 18 - Wed, Jul 1
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
9:45 am - 11:45 am
LAS
-
OPO
18h 00m
1 stop
$892Air Transat
Thu, Jun 18 - Fri, Jul 3
Air Transat Logo
1:30 pm - 11:42 am
OPO
-
LAS
30h 12m
1 stop
Air Transat Logo
11:15 pm - 11:45 am
LAS
-
OPO
28h 30m
1 stop
$898Air Transat
Thu, Jun 18 - Wed, Jul 1
KLM Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
KLM Logo
5:50 pm - 10:00 pm
LAS
-
OPO
20h 10m
1 stop
$935KLM
Wed, May 20 - Sat, May 30
Delta Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
Delta Logo
6:20 am - 10:20 am
LAS
-
OPO
20h 00m
2 stops
$939Delta
Wed, May 20 - Sat, May 30
Delta Logo
11:45 am - 6:35 pm
OPO
-
LAS
14h 50m
1 stop
Delta Logo
6:10 am - 10:20 am
LAS
-
OPO
20h 10m
2 stops
$940Delta
Wed, May 20 - Sat, May 30
Delta Logo
11:45 am - 6:35 pm
OPO
-
LAS
14h 50m
1 stop
Delta Logo
6:10 am - 10:20 am
LAS
-
OPO
20h 10m
2 stops
$941Delta
Wed, May 20 - Sat, May 30
Delta Logo
5:00 am - 6:06 pm
OPO
-
LAS
21h 06m
2 stops
Delta Logo
6:10 am - 10:20 am
LAS
-
OPO
20h 10m
2 stops
$944Delta
Wed, May 20 - Sat, May 30

Delta flights from Porto to Las Vegas

Our best Delta deals on Porto to Las Vegas flight tickets
Delta
May 20
OPO5:00 amPorto
21h 35m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 30
LAS6:20 amLas Vegas Harry Reid Intl
20h 00m
2 stops
OPO10:20 amPorto
$939
Delta
May 20
OPO11:45 amPorto
14h 50m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 30
LAS6:10 amLas Vegas Harry Reid Intl
20h 10m
2 stops
OPO10:20 amPorto
$940
Delta
May 20
OPO11:45 amPorto
14h 50m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
May 30
LAS6:10 amLas Vegas Harry Reid Intl
20h 10m
2 stops
OPO10:20 amPorto
$941

United Airlines flights from Porto to Las Vegas

Our best United Airlines deals on Porto to Las Vegas flight tickets
United Airlines
Sep 24
OPO6:00 amPorto
25h 52m
2 stops
LAS11:52 pmLas Vegas Harry Reid Intl
Sep 28
LAS12:30 pmLas Vegas Harry Reid Intl
13h 15m
1 stop
OPO9:45 amPorto
$993
United Airlines
Sep 24
OPO6:00 amPorto
22h 07m
2 stops
LAS8:07 pmLas Vegas Harry Reid Intl
Sep 28
LAS11:59 pmLas Vegas Harry Reid Intl
25h 46m
1 stop
OPO9:45 amPorto
$994
United Airlines
Sep 24
OPO6:00 amPorto
25h 52m
2 stops
LAS11:52 pmLas Vegas Harry Reid Intl
Sep 28
LAS12:30 pmLas Vegas Harry Reid Intl
13h 15m
1 stop
OPO9:45 amPorto
$995

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 May 5, 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 6/22

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 7/8

11:15 pm-11:45 am

1 stop28h 30m

$793

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 6/18

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Thu 7/2

11:15 pm-11:45 am

1 stop28h 30m

$820

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 6/18

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 7/1

11:15 pm-11:45 am

1 stop28h 30m

$889

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 6/18

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Fri 7/3

9:45 am-11:45 am

1 stop18h 00m

$892

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 6/18

1:30 pm-11:42 am

1 stop30h 12m

Las Vegas Harry Reid Intl

Wed 7/1

11:15 pm-11:45 am

1 stop28h 30m

$898

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Sat 5/30

5:50 pm-10:00 pm

1 stop20h 10m

$935

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Sat 5/30

6:20 am-10:20 am

2 stops20h 00m

$939
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

11:45 am-6:35 pm

1 stop14h 50m

Las Vegas Harry Reid Intl

Sat 5/30

6:10 am-10:20 am

2 stops20h 10m

$940

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

11:45 am-6:35 pm

1 stop14h 50m

Las Vegas Harry Reid Intl

Sat 5/30

6:10 am-10:20 am

2 stops20h 10m

$941

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 5/20

5:00 am-6:06 pm

2 stops21h 06m

Las Vegas Harry Reid Intl

Sat 5/30

6:10 am-10:20 am

2 stops20h 10m

$944

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 $814.

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

You could potentially save up to 18% 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

14h 50m

Direct flights

None
The fastest flight from Porto to Las Vegas takes 14h 50m
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 14h 50m 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
Mesquite
Kingman
Pahrump
Furnace Creek
Boulder City
Primm
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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