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Cheap flights from Porto to Las Vegas from $755

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Las Vegas departing on 9/10. 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
12:45 pm - 11:55 am
LAS
-
OPO
15h 10m
1 stop
$755Air Transat
Thu, Sep 10 - Wed, Sep 23
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
$791Air Transat
Mon, Oct 19 - Thu, Oct 22
Multiple Airlines Logo
8:25 am - 10:22 pm
OPO
-
LAS
21h 57m
2 stops
Multiple Airlines Logo
12:45 pm - 11:55 am
LAS
-
OPO
15h 10m
1 stop
$850Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
8:25 am - 10:22 pm
OPO
-
LAS
21h 57m
2 stops
Multiple Airlines Logo
11:25 pm - 11:45 am
LAS
-
OPO
28h 20m
2 stops
$887Multiple Airlines
Wed, Sep 2 - Wed, Sep 9
Multiple Airlines Logo
9:15 pm - 10:22 pm
OPO
-
LAS
33h 07m
2 stops
Multiple Airlines Logo
8:30 am - 11:00 pm
LAS
-
OPO
30h 30m
3 stops
$932Multiple Airlines
Thu, Sep 17 - Thu, Sep 24
Multiple Airlines Logo
4:00 pm - 3:30 pm
OPO
-
LAS
31h 30m
3 stops
Multiple Airlines Logo
6:50 am - 5:00 pm
LAS
-
OPO
26h 10m
3 stops
$937Multiple Airlines
Thu, Sep 10 - Wed, Sep 23
Delta Logo
5:00 am - 6:35 pm
OPO
-
LAS
21h 35m
1 stop
Delta Logo
12:22 pm - 3:25 pm
LAS
-
OPO
19h 03m
2 stops
$940Delta
Thu, Sep 10 - Wed, Sep 23
Delta Logo
11:35 am - 6:35 pm
OPO
-
LAS
15h 00m
1 stop
Delta Logo
11:25 am - 3:25 pm
LAS
-
OPO
20h 00m
2 stops
$942Delta
Thu, Sep 10 - Wed, Sep 23
Delta Logo
5:00 am - 7:39 pm
OPO
-
LAS
22h 39m
2 stops
Delta Logo
12:22 pm - 3:25 pm
LAS
-
OPO
19h 03m
2 stops
$945Delta
Thu, Sep 10 - Wed, Sep 23
Delta Logo
5:00 am - 7:51 pm
OPO
-
LAS
22h 51m
2 stops
Delta Logo
11:25 am - 3:25 pm
LAS
-
OPO
20h 00m
2 stops
$947Delta
Thu, Sep 10 - Wed, Sep 23

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KLM flights from Porto to Las Vegas

Our best KLM deals on Porto to Las Vegas flight tickets
KLM
Sep 4
OPO11:25 amPorto
15h 10m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
Sep 7
LAS5:50 pmLas Vegas Harry Reid Intl
20h 40m
1 stop
OPO10:30 pmPorto
$954
KLM
Sep 21
OPO5:00 amPorto
21h 35m
1 stop
LAS6:35 pmLas Vegas Harry Reid Intl
Sep 27
LAS9:59 amLas Vegas Harry Reid Intl
16h 26m
1 stop
OPO10:25 amPorto
$974
KLM
Sep 21
OPO7:00 amPorto
16h 35m
1 stop
LAS3:35 pmLas Vegas Harry Reid Intl
Sep 27
LAS8:25 pmLas Vegas Harry Reid Intl
14h 40m
1 stop
OPO7:05 pmPorto
$975

United Airlines flights from Porto to Las Vegas

Our best United Airlines deals on Porto to Las Vegas flight tickets
United Airlines
Sep 18
OPO6:00 amPorto
18h 20m
1 stop
LAS4:20 pmLas Vegas Harry Reid Intl
Sep 22
LAS7:00 amLas Vegas Harry Reid Intl
15h 15m
1 stop
OPO6:15 amPorto
$990
United Airlines
Nov 12
OPO6:00 amPorto
16h 35m
1 stop
LAS2:35 pmLas Vegas Harry Reid Intl
Nov 16
LAS11:36 amLas Vegas Harry Reid Intl
13h 54m
1 stop
OPO9:30 amPorto
$992
United Airlines
Sep 18
OPO6:00 amPorto
22h 04m
2 stops
LAS8:04 pmLas Vegas Harry Reid Intl
Sep 21
LAS12:59 amLas Vegas Harry Reid Intl
21h 16m
2 stops
OPO6:15 amPorto
$996

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 3, 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
Quickest round-trip

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Wed 9/23

12:45 pm-11:55 am

1 stop15h 10m

$755

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 10/19

1:30 pm-10:22 pm

1 stop16h 52m

Las Vegas Harry Reid Intl

Thu 10/22

11:20 pm-11:45 am

1 stop28h 25m

$791

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 9/2

8:25 am-10:22 pm

2 stops21h 57m

Las Vegas Harry Reid Intl

Wed 9/9

12:45 pm-11:55 am

1 stop15h 10m

$850

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 9/2

8:25 am-10:22 pm

2 stops21h 57m

Las Vegas Harry Reid Intl

Wed 9/9

11:25 pm-11:45 am

2 stops28h 20m

$887

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/17

9:15 pm-10:22 pm

2 stops33h 07m

Las Vegas Harry Reid Intl

Thu 9/24

8:30 am-11:00 pm

3 stops30h 30m

$932

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

4:00 pm-3:30 pm

3 stops31h 30m

Las Vegas Harry Reid Intl

Wed 9/23

6:50 am-5:00 pm

3 stops26h 10m

$937

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

5:00 am-6:35 pm

1 stop21h 35m

Las Vegas Harry Reid Intl

Wed 9/23

12:22 pm-3:25 pm

2 stops19h 03m

$940

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

11:35 am-6:35 pm

1 stop15h 00m

Las Vegas Harry Reid Intl

Wed 9/23

11:25 am-3:25 pm

2 stops20h 00m

$942

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

5:00 am-7:39 pm

2 stops22h 39m

Las Vegas Harry Reid Intl

Wed 9/23

12:22 pm-3:25 pm

2 stops19h 03m

$945

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 9/10

5:00 am-7:51 pm

2 stops22h 51m

Las Vegas Harry Reid Intl

Wed 9/23

11:25 am-3:25 pm

2 stops20h 00m

$947

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?

Prices are currently low for flights on this route.

Typical prices usually range from $990 to $1,279.
The lowest price recently found on this route was $755.

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 March is another great option to travel to Las Vegas, with average flight prices from Porto averaging around $866.

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

You could potentially save up to 27% 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

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 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
Paradise
Henderson
North Las Vegas
Kingman
Mesquite
Sunrise Manor
Pahrump
Furnace Creek
Boulder City
Winchester
Primm
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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