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Cheap flights from Porto to Las Vegas from $464

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 10/4. 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 (OPO-LAS)

Cheap round-trip flights

Logo
6:25 am - 9:31 amOPO-LAS
35h 06m3 stops
Logo
12:11 pm - 7:00 pmLAS-OPO
22h 49m2 stops
$711
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Thu, Sep 11 - Wed, Sep 24
Logo
6:05 pm - 9:28 amOPO-LAS
23h 23m1 stop
Logo
9:36 am - 10:35 pmLAS-OPO
28h 59m2 stops
$726
Find Deal
Thu, Sep 11 - Wed, Sep 24
Air Transat Logo
1:30 pm - 11:15 amOPO-LAS
29h 45m1 stop
Air Transat Logo
12:20 pm - 11:55 amLAS-OPO
15h 35m1 stop
$727Air Transat
Find Deal
Thu, Sep 11 - Wed, Sep 24
Air Transat Logo
1:30 pm - 11:15 amOPO-LAS
29h 45m1 stop
Air Transat Logo
12:20 pm - 11:55 amLAS-OPO
15h 35m1 stop
$729Air Transat
Find Deal
Thu, Sep 11 - Wed, Sep 24
Logo
7:00 am - 9:53 pmOPO-LAS
22h 53m2 stops
Logo
12:11 pm - 7:00 pmLAS-OPO
22h 49m2 stops
$749
Find Deal
Thu, Sep 11 - Wed, Sep 24
United Airlines Logo
6:00 am - 8:24 pmOPO-LAS
22h 24m2 stops
United Airlines Logo
6:00 am - 9:45 amLAS-OPO
19h 45m2 stops
$829United Airlines
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Thu, Sep 11 - Wed, Sep 24
United Airlines Logo
12:35 pm - 8:00 pmOPO-LAS
15h 25m1 stop
United Airlines Logo
6:00 am - 9:45 amLAS-OPO
19h 45m2 stops
$852United Airlines
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Thu, Sep 11 - Wed, Sep 24
American Airlines Logo
8:15 am - 8:50 pmOPO-LAS
20h 35m2 stops
American Airlines Logo
11:41 am - 3:55 pmLAS-OPO
20h 14m2 stops
$876American Airlines
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Thu, Oct 2 - Thu, Oct 9
Lufthansa Logo
6:15 am - 12:57 amOPO-LAS
26h 42m2 stops
Lufthansa Logo
9:55 am - 12:50 pmLAS-OPO
18h 55m2 stops
$882Lufthansa
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Fri, Dec 26 - Mon, Dec 29
Lufthansa Logo
6:15 am - 6:08 pmOPO-LAS
19h 53m2 stops
Lufthansa Logo
9:55 am - 12:50 pmLAS-OPO
18h 55m2 stops
$900Lufthansa
Find Deal
Sat, Dec 27 - Mon, Dec 29

American Airlines flights from Porto to Las Vegas

Our best American Airlines deals on Porto to Las Vegas flight tickets
American Airlines
Oct 2
OPO8:15 amPorto
20h 35m
2 stops
LAS8:50 pmLas Vegas Harry Reid Intl
Oct 9
LAS11:41 amLas Vegas Harry Reid Intl
20h 14m
2 stops
OPO3:55 pmPorto
$876
Find similar
American Airlines
Aug 21
OPO12:20 pmPorto
19h 24m
2 stops
LAS11:44 pmLas Vegas Harry Reid Intl
Aug 24
LAS9:46 amLas Vegas Harry Reid Intl
26h 09m
2 stops
OPO7:55 pmPorto
$1,281
Find similar
American Airlines
Aug 21
OPO12:20 pmPorto
40h 22m
2 stops
LAS8:42 pmLas Vegas Harry Reid Intl
Aug 26
LAS7:50 amLas Vegas Harry Reid Intl
19h 50m
2 stops
OPO11:40 amPorto
$1,503
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Delta flights from Porto to Las Vegas

Our best Delta deals on Porto to Las Vegas flight tickets
Delta
Sep 11
OPO6:30 amPorto
20h 37m
2 stops
LAS7:07 pmLas Vegas Harry Reid Intl
Sep 24
LAS1:35 pmLas Vegas Harry Reid Intl
17h 55m
2 stops
OPO3:30 pmPorto
$897
Find similar
Delta
Jan 7
OPO11:15 amPorto
35h 00m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Jun 21
LAS8:25 pmLas Vegas Harry Reid Intl
13h 45m
1 stop
OPO6:10 pmPorto
$925
Find similar
Delta
Jan 1
OPO6:35 amPorto
15h 40m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Jun 21
LAS8:25 pmLas Vegas Harry Reid Intl
13h 45m
1 stop
OPO6:10 pmPorto
$943
Find similar

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 August 18, 2025.
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

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

6:25 am-9:31 am

3 stops35h 06m

Las Vegas Harry Reid Intl

Wed 9/24

12:11 pm-7:00 pm

2 stops22h 49m

$711

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

6:05 pm-9:28 am

1 stop23h 23m

Las Vegas Harry Reid Intl

Wed 9/24

9:36 am-10:35 pm

2 stops28h 59m

$726

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

1:30 pm-11:15 am

1 stop29h 45m

Las Vegas Harry Reid Intl

Wed 9/24

12:20 pm-11:55 am

1 stop15h 35m

$727

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

1:30 pm-11:15 am

1 stop29h 45m

Las Vegas Harry Reid Intl

Wed 9/24

12:20 pm-11:55 am

1 stop15h 35m

$729

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

7:00 am-9:53 pm

2 stops22h 53m

Las Vegas Harry Reid Intl

Wed 9/24

12:11 pm-7:00 pm

2 stops22h 49m

$749

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

6:00 am-8:24 pm

2 stops22h 24m

Las Vegas Harry Reid Intl

Wed 9/24

6:00 am-9:45 am

2 stops19h 45m

$829

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/11

12:35 pm-8:00 pm

1 stop15h 25m

Las Vegas Harry Reid Intl

Wed 9/24

6:00 am-9:45 am

2 stops19h 45m

$852

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 10/2

8:15 am-8:50 pm

2 stops20h 35m

Las Vegas Harry Reid Intl

Thu 10/9

11:41 am-3:55 pm

2 stops20h 14m

$876

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Fri 12/26

6:15 am-12:57 am

2 stops26h 42m

Las Vegas Harry Reid Intl

Mon 12/29

9:55 am-12:50 pm

2 stops18h 55m

$882

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sat 12/27

6:15 am-6:08 pm

2 stops19h 53m

Las Vegas Harry Reid Intl

Mon 12/29

9:55 am-12:50 pm

2 stops18h 55m

$900

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 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 $790. The month of May is another great option to travel to Las Vegas, with average flight prices from Porto averaging around $821.

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

You could potentially save up to 42% 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

Best Price Found

$464

Fastest flight time

15h 25m

Direct flights

None

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Porto in the past 72 hours is $464. The best round-trip flight deal from Porto to Las Vegas found on momondo in the last 72 hours is $711.
The fastest flight from Porto to Las Vegas takes 15h 25m
There are no direct flights from Porto to Las Vegas. Popular non-direct route for this connection is Porto Airport - Las Vegas Harry Reid Intl Airport.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
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 25m 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
Mesquite
North Las Vegas
Paradise
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Winchester
Sunrise Manor
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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