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$137+ Cheap flights from Las Vegas to Portland, ME (LAS - PWM)

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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — PWM
Aug 20 — Aug 271
Wed 8/20
Wed 8/27
1 adult, Economy
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Cheap flight deals from Las Vegas to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Portland (PWM). 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 August 15, 2025.

Round-trip from

$273
(Delta)

One-way from

$137
(Delta)

Popular in

February

Cheapest in

January

Average price

$479
From Las Vegas Harry Reid Intl to Portland
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One-way flight from Las Vegas Harry Reid Intl to Portland
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Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Las Vegas to Portland

Cheapest flights from Las Vegas to Portland
Explore the most affordable flight options available from Las Vegas to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 15, 2025.

This Delta deal was found by Cheapflights users on 8/12. 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.
Fri 9/512:35 amLAS - PWM
1 stop7h 07mDelta
Wed 9/102:36 pmPWM - LAS
1 stop10h 42mDelta
Deal found 8/12$273
This American Airlines deal was found by Cheapflights users on 8/12. 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.
Sat 9/67:03 amLAS - PWM
2 stops12h 26mAmerican Airlines
Wed 9/102:30 pmPWM - LAS
2 stops9h 53mAmerican Airlines
Deal found 8/12$283
This Delta deal was found by Cheapflights users on 8/13. 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.
Fri 9/1211:55 amLAS - PWM
1 stop9h 39mDelta
Fri 9/192:41 pmPWM - LAS
1 stop10h 39mDelta
Deal found 8/13$333
This American Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/2111:20 pmLAS - PWM
1 stop10h 09mAmerican Airlines
Thu 9/253:56 pmPWM - LAS
1 stop9h 15mAmerican Airlines
Deal found 8/14$344
This Delta deal was found by Cheapflights users on 8/14. 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 10/110:14 amLAS - PWM
2 stops10h 57mDelta
Wed 10/86:00 amPWM - LAS
1 stop8h 10mDelta
Deal found 8/14$360
This American Airlines deal was found by Cheapflights users on 8/14. 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 10/211:10 amLAS - PWM
1 stop7h 04mAmerican Airlines
Sun 10/264:15 pmPWM - LAS
1 stop8h 53mAmerican Airlines
Deal found 8/14$386
This Expedia deal was found by Cheapflights users on 8/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:44 pmLAS - PWM
1 stop13h 38mJetBlue
Wed 10/87:09 amPWM - LAS
1 stop8h 16mJetBlue
Deal found 8/14$387
This Southwest deal was found by Cheapflights users on 8/14. 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.
Wed 10/2212:30 pmLAS - PWM
1 stop7h 00mSouthwest
Sun 10/265:25 pmPWM - LAS
1 stop9h 20mSouthwest
Deal found 8/14$396

Cheapflights Fare Finder

 
Customize your flight search to find flights from Las Vegas to Portland 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 August 15, 2025.
Use the filters below to find and compare flights from Las Vegas to Portland that are best for you.

Fly from

Las Vegas

Fly to

Portland

Route

Depart

Return

Price

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Fri 9/5

12:35 am-10:42 am

1 stop7h 07m

Portland

Wed 9/10

2:36 pm-10:18 pm

1 stop10h 42m

$273

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Sat 9/6

7:03 am-5:45 pm

1 stop7h 42m

Portland

Wed 9/10

6:00 am-11:37 am

1 stop8h 37m

$273

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Fri 9/12

11:55 am-12:34 am

1 stop9h 39m

Portland

Fri 9/19

2:41 pm-10:20 pm

1 stop10h 39m

$333

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Sun 9/21

11:20 pm-12:29 pm

1 stop10h 09m

Portland

Thu 9/25

3:56 pm-10:11 pm

1 stop9h 15m

$344

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Wed 10/1

10:14 am-12:11 am

2 stops10h 57m

Portland

Wed 10/8

6:00 am-11:10 am

1 stop8h 10m

$360

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Tue 10/21

1:10 am-11:14 am

1 stop7h 04m

Portland

Sun 10/26

4:15 pm-10:08 pm

1 stop8h 53m

$386

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Wed 10/1

8:44 pm-1:22 pm

1 stop13h 38m

Portland

Wed 10/8

7:09 am-12:25 pm

1 stop8h 16m

$387

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Wed 9/10

8:30 am-7:29 pm

1 stop7h 59m

$137

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Tue 9/9

12:35 am-10:42 am

1 stop7h 07m

$137

Las VegasPortland

LAS - PWM

LASPWM

Las Vegas Harry Reid Intl

Wed 9/10

10:06 am-11:45 pm

2 stops10h 39m

$142

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 16 results
1
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Best time to book a flight from Las Vegas to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Las Vegas 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 Las Vegas to Portland

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

Currently, January is the cheapest month in which you can book a flight from Las Vegas to Portland, Maine (average of $296). Flying from Las Vegas to Portland, Maine in July is currently the most expensive (average of $394). 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 LAS to PWM?

Find hourly flight availability from Las Vegas to Portland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 15, 2025.

It’s typically best to fly out from Las Vegas to Portland, Maine at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

How much does it cost to fly round-trip from Las Vegas to Portland, Maine?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated August 15, 2025.
Get a feel of what it's like to fly with Southwest, Delta, and United Airlines from Las Vegas to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,982 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,915 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Food

7.0

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

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

    According to our current data, United Airlines ($226), Delta ($262), and American Airlines ($272) offers the cheapest pricing from Las Vegas to Portland, Maine. United Airlines is 53% cheaper than the average price of flights available within the next 90 days to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Las Vegas to Portland 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 Las Vegas to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from Las Vegas to Portland, Maine (average of $296). Flying from Las Vegas to Portland, Maine in July is currently the most expensive (average of $394). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
Brunswick
North Conway
Auburn
Conway
Lewiston

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Las Vegas to Portland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Las Vegas to Portland

Discover the top 4 airlines that operate flights from Las Vegas to Portland. 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 August 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$226Average$490FlexibilityNo cancel feeOn-time69%
DeltaCheapest$262Average$472FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$272Average$426FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$412Average$546FlexibilityNo cancel feeOn-time63%

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