Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from Porto to Las Vegas from $788

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 3/2. 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
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Porto to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:20 am - 2:04 pm
OPO
-
LAS
37h 44m3 stops
Multiple Airlines Logo
1:05 am - 7:40 am
LAS
-
OPO
22h 35m2 stops
$788Multiple Airlines
Mon, Mar 2 - Sat, Mar 7
Multiple Airlines Logo
7:00 am - 10:09 pm
OPO
-
LAS
23h 09m2 stops
Multiple Airlines Logo
7:07 am - 10:45 pm
LAS
-
OPO
31h 38m3 stops
$796Multiple Airlines
Thu, Jan 15 - Sat, Jan 31
Multiple Airlines Logo
6:35 am - 5:50 pm
OPO
-
LAS
19h 15m2 stops
Multiple Airlines Logo
7:35 pm - 10:30 am
LAS
-
OPO
30h 55m2 stops
$828Multiple Airlines
Thu, Jan 15 - Sat, Jan 31
Multiple Airlines Logo
12:25 pm - 2:04 pm
OPO
-
LAS
33h 39m3 stops
Multiple Airlines Logo
12:59 am - 11:45 am
LAS
-
OPO
26h 46m3 stops
$842Multiple Airlines
Mon, Mar 2 - Sat, Mar 7
Air Transat Logo
1:30 pm - 9:55 pm
OPO
-
LAS
16h 25m1 stop
Air Transat Logo
9:55 am - 11:45 am
LAS
-
OPO
17h 50m1 stop
$849Air Transat
Mon, May 4 - Wed, May 13
Air Transat Logo
1:30 pm - 9:55 pm
OPO
-
LAS
16h 25m1 stop
Air Transat Logo
9:55 am - 11:45 am
LAS
-
OPO
17h 50m1 stop
$850Air Transat
Mon, May 4 - Wed, May 13
Air Transat Logo
1:30 pm - 9:55 pm
OPO
-
LAS
16h 25m1 stop
Air Transat Logo
9:55 am - 11:45 am
LAS
-
OPO
17h 50m1 stop
$851Air Transat
Mon, May 4 - Wed, May 13
Delta Logo
6:35 am - 2:15 pm
OPO
-
LAS
15h 40m1 stop
Delta Logo
7:00 am - 10:25 am
LAS
-
OPO
19h 25m2 stops
$883Delta
Thu, Jan 8 - Thu, Jan 22
Multiple Airlines Logo
11:15 am - 2:15 pm
OPO
-
LAS
35h 00m1 stop
Multiple Airlines Logo
10:19 am - 10:30 am
LAS
-
OPO
16h 11m2 stops
$884Multiple Airlines
Mon, Jan 12 - Tue, Jan 27
Lufthansa Logo
6:00 am - 12:57 am
OPO
-
LAS
26h 57m2 stops
Lufthansa Logo
11:53 am - 12:50 pm
LAS
-
OPO
16h 57m2 stops
$887Lufthansa
Sun, Jan 18 - Tue, Jan 27

KLM flights from Porto to Las Vegas

Our best KLM deals on Porto to Las Vegas flight tickets
KLM
Jan 18
OPO11:15 amPorto
21h 25m
2 stops
LAS12:40 amLas Vegas Harry Reid Intl
Jan 27
LAS4:05 pmLas Vegas Harry Reid Intl
15h 20m
1 stop
OPO3:25 pmPorto
$900
Find similar
KLM
Feb 3
OPO5:00 amPorto
17h 15m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Feb 6
LAS9:35 amLas Vegas Harry Reid Intl
16h 55m
2 stops
OPO10:30 amPorto
$985
Find similar
KLM
Feb 3
OPO5:00 amPorto
17h 15m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Feb 6
LAS9:35 amLas Vegas Harry Reid Intl
16h 55m
2 stops
OPO10:30 amPorto
$1,000
Find similar

Delta flights from Porto to Las Vegas

Our best Delta deals on Porto to Las Vegas flight tickets
Delta
Jan 8
OPO6:35 amPorto
15h 40m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Jan 22
LAS7:00 amLas Vegas Harry Reid Intl
19h 25m
2 stops
OPO10:25 amPorto
$883
Find similar
Delta
Jan 15
OPO6:35 amPorto
15h 40m
1 stop
LAS2:15 pmLas Vegas Harry Reid Intl
Jan 31
LAS4:05 pmLas Vegas Harry Reid Intl
22h 20m
1 stop
OPO10:25 pmPorto
$889
Find similar
Delta
May 4
OPO11:45 amPorto
20h 17m
2 stops
LAS12:02 amLas Vegas Harry Reid Intl
May 13
LAS1:05 pmLas Vegas Harry Reid Intl
21h 05m
2 stops
OPO6:10 pmPorto
$893
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 December 8, 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

Mon 3/2

8:20 am-2:04 pm

3 stops37h 44m

Las Vegas Harry Reid Intl

Sat 3/7

1:05 am-7:40 am

2 stops22h 35m

$788

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/15

7:00 am-10:09 pm

2 stops23h 09m

Las Vegas Harry Reid Intl

Sat 1/31

7:07 am-10:45 pm

3 stops31h 38m

$796

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/15

6:35 am-5:50 pm

2 stops19h 15m

Las Vegas Harry Reid Intl

Sat 1/31

7:35 pm-10:30 am

2 stops30h 55m

$828

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 3/2

12:25 pm-2:04 pm

3 stops33h 39m

Las Vegas Harry Reid Intl

Sat 3/7

12:59 am-11:45 am

3 stops26h 46m

$842

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-9:55 pm

1 stop16h 25m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-11:45 am

1 stop17h 50m

$849

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-9:55 pm

1 stop16h 25m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-11:45 am

1 stop17h 50m

$850

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 5/4

1:30 pm-9:55 pm

1 stop16h 25m

Las Vegas Harry Reid Intl

Wed 5/13

9:55 am-11:45 am

1 stop17h 50m

$851

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 1/8

6:35 am-2:15 pm

1 stop15h 40m

Las Vegas Harry Reid Intl

Thu 1/22

7:00 am-10:25 am

2 stops19h 25m

$883

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 1/12

11:15 am-2:15 pm

1 stop35h 00m

Las Vegas Harry Reid Intl

Tue 1/27

10:19 am-10:30 am

2 stops16h 11m

$884

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 1/18

6:00 am-12:57 am

2 stops26h 57m

Las Vegas Harry Reid Intl

Tue 1/27

11:53 am-12:50 pm

2 stops16h 57m

$887

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 7% 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 25m

Direct flights

None
The fastest flight from Porto to Las Vegas takes 16h 25m
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 40m 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
Paradise
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.

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 1/7
Wed 1/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States