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$180+ Cheap flights from Portland, ME to Las Vegas (PWM - LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LAS
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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1. Tell us where you want to go

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2. Select your favorite providers

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Cheapflights Tip: The best prices from Portland to Las Vegas Harry Reid Intl are usually found in August or October, booked 52 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Find flight deals from Portland to Las Vegas

Cheapest flights from Portland to Las Vegas
Explore the most affordable flight options available from Portland to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:18 pmPWM - LAS
2 stops40h 31mMultiple Airlines
Wed 12/1010:20 pmLAS - PWM
1 stop31h 46mMultiple Airlines
Deal found 10/25$324
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:34 pmPWM - LAS
1 stop8h 16mDelta
Wed 12/106:00 amLAS - PWM
2 stops14h 59mDelta
Deal found 10/27$343
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:15 amPWM - LAS
1 stop11h 14mDelta
Sat 12/66:00 amLAS - PWM
2 stops14h 59mDelta
Deal found 10/27$353
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:02 amPWM - LAS
1 stop8h 36mAmerican Airlines
Wed 12/1011:24 amLAS - PWM
1 stop7h 13mAmerican Airlines
Deal found 10/27$359
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/212:52 pmPWM - LAS
1 stop8h 55mAmerican Airlines
Tue 12/91:26 pmLAS - PWM
1 stop7h 11mAmerican Airlines
Deal found 10/27$368

Cheap flight deals from Portland to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 27, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$324
(Kiwi.com)

One-way from

$180
(American Airlines)

Popular in

April

Cheapest in

August

Average price

$384
Provider with most accurate pricing for Portland-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-Las Vegas Harry Reid Intl flights.
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From Portland to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Portland to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($72 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Portland to Las Vegas that are best for you.

Fly from

Portland

Fly to

Las Vegas

Route

Depart

Return

Price

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sun 1/18

3:42 pm-9:51 pm

1 stop9h 09m

Las Vegas Harry Reid Intl

Thu 1/22

6:44 pm-9:01 am

2 stops11h 17m

$337

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sun 1/18

2:35 pm-11:35 pm

2 stops12h 00m

Las Vegas Harry Reid Intl

Thu 1/22

6:00 am-10:29 pm

2 stops13h 29m

$342

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Wed 12/3

2:34 pm-7:50 pm

1 stop8h 16m

Las Vegas Harry Reid Intl

Wed 12/10

6:00 am-11:59 pm

2 stops14h 59m

$343

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Wed 12/3

6:00 am-5:32 pm

2 stops14h 32m

Las Vegas Harry Reid Intl

Sat 12/6

6:00 am-11:59 pm

2 stops14h 59m

$358

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Mon 12/8

12:45 pm-6:50 pm

1 stop9h 05m

Las Vegas Harry Reid Intl

Thu 12/11

10:20 pm-11:10 am

1 stop9h 50m

$359

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Thu 12/4

6:00 am-1:03 pm

1 stop10h 03m

Las Vegas Harry Reid Intl

Tue 12/9

8:04 am-6:42 pm

1 stop7h 38m

$359

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Thu 1/29

3:56 pm-9:59 pm

1 stop9h 03m

Las Vegas Harry Reid Intl

Sat 1/31

10:42 am-10:54 pm

1 stop9h 12m

$368

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Thu 1/29

12:20 pm-8:55 pm

2 stops11h 35m

Las Vegas Harry Reid Intl

Sat 1/31

11:56 am-11:59 pm

1 stop9h 03m

$373

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Thu 1/29

9:40 am-5:53 pm

2 stops11h 13m

$185

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sun 11/9

3:15 pm-8:19 am

2 stops44h 04m

$220

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 18 results
1
2

Compare providers for flights from Portland to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Portland to Las Vegas in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Portland, Maine-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland, Maine-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Las Vegas

How far ahead should I book a flight from Portland, Maine to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Las Vegas. Price data was last updated on October 24, 2025.

To ensure you get the cheapest price possible for a flight from Portland, Maine to Las Vegas, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Portland, Maine to Las Vegas?

Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Las Vegas (average of $128). Flying from Portland, Maine to Las Vegas in July is currently the most expensive (average of $214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PWM to LAS?

Find hourly flight availability from Portland to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

When flying from Portland, Maine to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 46% versus a flight in the afternoon.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated October 27, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Portland to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,236 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,996 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,997 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,033 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
JetBlue
7.2
Good
2,907 reviews
Southwest
8.0
Very good
4,236 reviews

Overall

8.0

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

Related info for your journey

Find useful and relevant information for your journey from Portland to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland, Maine to Las Vegas?

    Departing from Portland, Maine to Las Vegas will take you 8h 16m. The distance between Portland, Maine and Las Vegas is about 2403 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Portland, Maine to Las Vegas round-trip?

    Cheapflights users have booked flights from Portland, Maine to Las Vegas round-trip from $186. Other airlines that can offer you cheap pricing are Delta, from $272, and American Airlines, from $274. JetBlue is currently priced 59% below the average price you’ll pay for this route.

  • Can I find deals for flights from Portland to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Portland to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Las Vegas.

  • Can I find deals for business class flights from Portland to Las Vegas?

    Yes. Cheapflights offers flight deals from Portland to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland, Maine to Las Vegas?

    Currently, January is the cheapest month in which you can book a flight from Portland, Maine to Las Vegas (average of $128). Flying from Portland, Maine to Las Vegas in July is currently the most expensive (average of $214). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Henderson
North Las Vegas
Winchester
Kingman
Sunrise Manor
Primm
Mount Charleston
Mesquite
Needles
Boulder City

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Top 5 airlines flying from Portland to Las Vegas

Discover the top 5 airlines that operate flights from Portland to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$186Average$354FlexibilityNo cancel feeOn-time62%
DeltaCheapest$272Average$460FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$274Average$469FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$331Average$511FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$356Average$493FlexibilityNo cancel feeOn-time63%

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