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$112+ 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 11/1. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — LAS
oct. 11 — oct. 181
sáb. 10/11
sáb. 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Las Vegas Harry Reid Intl are usually found in September or August, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

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 septiembre 11, 2025.

Round-trip from

$197
(Southwest)

One-way from

$112
(Southwest)

Popular in

April

Cheapest in

September

Average price

$391
From Portland to Las Vegas Harry Reid Intl
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One-way flight from Portland to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 11% potential increase in price ($58 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 septiembre 11, 2025.

This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/153:15 pmPWM - LAS
1 stop9h 05mSouthwest
mié. 11/199:45 amLAS - PWM
2 stops9h 30mSouthwest
Deal found 9/11$197
This Southwest deal was found by Cheapflights users on 9/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 11/95:25 pmPWM - LAS
1 stop8h 50mSouthwest
mié. 11/1210:20 pmLAS - PWM
1 stop9h 50mSouthwest
Deal found 9/9$245
This American Airlines deal was found by Cheapflights users on 9/10. 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.
sáb. 11/13:50 pmPWM - LAS
1 stop9h 18mAmerican Airlines
mar. 11/47:00 amLAS - PWM
1 stop8h 10mAmerican Airlines
Deal found 9/10$249
This American Airlines deal was found by Cheapflights users on 9/10. 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.
sáb. 10/253:28 pmPWM - LAS
1 stop10h 38mAmerican Airlines
jue. 10/3010:30 amLAS - PWM
1 stop9h 18mAmerican Airlines
Deal found 9/10$255
This Delta deal was found by Cheapflights users on 9/9. 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.
sáb. 11/81:27 pmPWM - LAS
1 stop8h 19mDelta
sáb. 11/156:00 amLAS - PWM
1 stop7h 07mDelta
Deal found 9/9$257
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/66:00 amPWM - LAS
1 stop10h 03mUnited Airlines
mié. 11/129:46 amLAS - PWM
2 stops10h 31mUnited Airlines
Deal found 9/10$260
This Delta deal was found by Cheapflights users on 9/11. 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.
lun. 11/32:38 pmPWM - LAS
1 stop10h 42mDelta
dom. 11/1612:43 amLAS - PWM
1 stop8h 47mDelta
Deal found 9/11$261
This Delta deal was found by Cheapflights users on 9/9. 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.
sáb. 11/81:27 pmPWM - LAS
1 stop9h 23mDelta
mié. 11/126:00 amLAS - PWM
2 stops14h 54mDelta
Deal found 9/9$262

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 septiembre 11, 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

sáb. 11/15

3:15 pm-9:20 pm

1 stop9h 05m

Las Vegas Harry Reid Intl

mié. 11/19

9:45 am-10:15 pm

2 stops9h 30m

$197

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

mar. 12/2

2:34 pm-7:35 pm

1 stop8h 01m

Las Vegas Harry Reid Intl

mar. 12/9

9:47 am-10:17 pm

1 stop9h 30m

$257

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

mié. 12/3

6:15 am-2:27 pm

1 stop11h 12m

Las Vegas Harry Reid Intl

mié. 12/10

6:00 am-4:06 pm

1 stop7h 06m

$257

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

sáb. 11/8

1:27 pm-9:00 pm

1 stop10h 33m

Las Vegas Harry Reid Intl

mar. 11/11

10:20 pm-1:50 pm

2 stops12h 30m

$262

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

mié. 11/12

4:40 pm-12:25 am

2 stops10h 45m

Las Vegas Harry Reid Intl

vie. 11/14

12:43 am-12:30 pm

1 stop8h 47m

$262

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

sáb. 11/15

1:25 pm-11:19 pm

2 stops12h 54m

Las Vegas Harry Reid Intl

mar. 11/18

12:43 am-12:30 pm

1 stop8h 47m

$262

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

sáb. 11/1

12:59 pm-8:15 pm

2 stops10h 16m

$130

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

lun. 11/24

6:00 am-12:30 pm

1 stop9h 30m

$131

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

vie. 11/14

5:25 pm-11:15 pm

1 stop8h 50m

$146

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

mié. 10/1

6:00 am-1:24 pm

2 stops10h 24m

$147

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 15 results
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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 August 29, 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 81 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, August is the cheapest month in which you can book a flight from Portland, Maine to Las Vegas (average of $198). Flying from Portland, Maine to Las Vegas in March is currently the most expensive (average of $269). 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 septiembre 11, 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 afternoon, which can drop the price by up to 47% versus a flight at noon.

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 septiembre 11, 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
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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
2,913 reviews
Southwest
8.0
Very good
4,248 reviews

Boarding

8.1

Crew

8.6

Entertainment

7.5

Overall

8.0

Comfort

8.0

Food

7.0

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 01m. 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 $201. Other airlines that can offer you cheap pricing are Delta, from $272, and American Airlines, from $277. JetBlue is currently priced 57% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland, Maine to Las Vegas one-way?

    The cheapest airline one-way is American Airlines, with whom users have recently found tickets for as low as $130. However, be on the lookout for offers from Delta and Southwest, as they are both options that can get you from Portland, Maine to Las Vegas for a low price.

  • 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, August is the cheapest month in which you can book a flight from Portland, Maine to Las Vegas (average of $198). Flying from Portland, Maine to Las Vegas in March is currently the most expensive (average of $269). 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
Sunrise Manor
Winchester
Kingman
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 septiembre 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$201Average$373FlexibilityNo cancel feeOn-time62%
DeltaCheapest$272Average$447FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$476FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$346Average$519FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$362Average$502FlexibilityNo cancel feeOn-time63%

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