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 $265. Other airlines that can offer you cheap pricing are American Airlines, from $271, and Delta, from $273. JetBlue is currently priced 44% 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 $137. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Portland, Maine to Las Vegas for a low price.

What is the cheapest day to fly from Portland, Maine to Las Vegas?

Travelers seeking maximum savings on their Portland, Maine to Las Vegas flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What are the most popular airlines that fly from Portland, Maine to Las Vegas?

Before booking your flight from Portland, Maine to Las Vegas check out the most popular airlines for this route: American Airlines, JetBlue or Delta.

What is the cheapest day to fly round-trip from Portland, Maine to Las Vegas?

Sunday flights are generally found to be more expensive for flights from Portland, Maine to Las Vegas. This shouldn’t discourage you from searching, as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Las Vegas.

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

To save up to 59% on this flight, we recommend booking at least 37 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Portland, Maine to Las Vegas from $366 1-2 weeks out and tickets from $914 for flights departing within the next 72 hours.

What is the cheapest month to fly from Portland, Maine to Las Vegas?

Flights from Portland, Maine to Las Vegas lean towards being more expensive in April. Prices are generally better when you fly from Portland, Maine to Las Vegas in September, with the cheapest ticket starting at $282.

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.

$137+ Flights from Portland, ME to Las Vegas

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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 September or January, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Las Vegas

Round-trip from	$265 (Expedia)
One-way from	$137 (American Airlines)
Popular in	April
Cheapest in	September
Average price	$471

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. 9% potential increase in price ($48 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).

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Average for round-trip flights in July 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 July 29, 2025.

Tue 10/72:17 pmPWM - LAS

1 stop9h 55mJetBlue

Tue 10/1411:59 pmLAS - PWM

1 stop10h 23mJetBlue

Deal found 7/28

$265

Tue 10/76:00 amPWM - LAS

1 stop7h 43mAmerican Airlines

Mon 10/131:10 amLAS - PWM

1 stop7h 04mAmerican Airlines

Deal found 7/28

$271

Sat 9/206:33 amPWM - LAS

1 stop9h 57mDelta

Tue 9/231:23 pmLAS - PWM

1 stop7h 48mDelta

Deal found 7/28

$273

Sat 11/13:20 pmPWM - LAS

1 stop8h 26mUnited Airlines

Sat 11/85:20 amLAS - PWM

1 stop7h 28mUnited Airlines

Deal found 7/28

$300

Best flights from Portland to Las Vegas
Discover carefully curated flight deals from Portland to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 29, 2025.

Tue 10/72:17 pmPWM - LAS

1 stop9h 55mJetBlue

Tue 10/1411:59 pmLAS - PWM

1 stop10h 23mJetBlue

Deal found 7/28

$265

Tue 10/76:00 amPWM - LAS

1 stop7h 43mAmerican Airlines

Mon 10/131:10 amLAS - PWM

1 stop7h 04mAmerican Airlines

Deal found 7/28

$271

Sat 9/206:33 amPWM - LAS

1 stop9h 57mDelta

Tue 9/231:23 pmLAS - PWM

1 stop7h 48mDelta

Deal found 7/28

$273

Sat 11/13:20 pmPWM - LAS

1 stop8h 26mUnited Airlines

Sat 11/85:20 amLAS - PWM

1 stop7h 28mUnited Airlines

Deal found 7/28

$300

Last-minute flights from Portland to Las Vegas
Discover last-minute flight deals from Portland to Las Vegas. Data last updated July 29, 2025 and is based on user searches.

Mon 8/412:34 pmPWM - LAS

1 stop7h 56mSun Country Air

Fri 8/89:55 amLAS - PWM

1 stop22h 40mSun Country Air

Deal found 7/26

$435

Mon 8/43:58 pmPWM - LAS

1 stop10h 56mAmerican Airlines

Fri 8/811:55 pmLAS - PWM

2 stops10h 40mAmerican Airlines

Deal found 7/26

$601

Thu 8/712:46 pmPWM - LAS

1 stop7h 32mMultiple Airlines

Fri 8/812:52 amLAS - PWM

1 stop14h 21mMultiple Airlines

Deal found 7/28

$438

Thu 8/712:51 pmPWM - LAS

1 stop10h 23mDelta

Fri 8/812:34 amLAS - PWM

2 stops11h 09mDelta

Deal found 7/28

$580

Fri 8/85:35 amPWM - LAS

2 stops11h 50mUnited Airlines

Sun 8/107:25 amLAS - PWM

1 stop11h 36mUnited Airlines

Deal found 7/27

$895

Mon 8/1112:46 pmPWM - LAS

1 stop8h 26mMultiple Airlines

Fri 8/1511:00 pmLAS - PWM

1 stop16h 13mMultiple Airlines

Deal found 7/27

$422

Wed 8/206:00 amPWM - LAS

1 stop8h 07mAmerican Airlines

Sat 8/236:46 amLAS - PWM

1 stop8h 53mAmerican Airlines

Deal found 7/27

$273

Wed 8/206:14 amPWM - LAS

1 stop8h 02mUnited Airlines

Fri 8/2212:59 amLAS - PWM

2 stops10h 27mUnited Airlines

Deal found 7/27

$378

Sun 8/2412:48 pmPWM - LAS

1 stop7h 31mSun Country Air

Sun 8/316:01 pmLAS - PWM

1 stop14h 39mSun Country Air

Deal found 7/27

$415

Tue 8/261:34 pmPWM - LAS

1 stop9h 56mDelta

Sat 8/3012:35 amLAS - PWM

1 stop7h 07mDelta

Deal found 7/26

$325

Sat 8/306:05 amPWM - LAS

1 stop11h 33mJetBlue

Thu 9/47:00 amLAS - PWM

1 stop12h 02mJetBlue

Deal found 7/27

$285

One-way flights from Portland to Las Vegas
Search for one-way flight options from Portland to Las Vegas. Find affordable one-way fares based on user searches. Data last updated July 29, 2025.

Sat 9/61:57 pmPWM - LAS

1 stop10h 17mAmerican Airlines

Deal found 7/29

$137

Fri 9/56:33 pmPWM - LAS

1 stop7h 14mDelta

Deal found 7/29

$167

Wed 8/135:35 amPWM - LAS

2 stops12h 28mUnited Airlines

Deal found 7/29

$194

Tue 8/54:55 pmPWM - LAS

1 stop8h 50mSouthwest

Deal found 7/28

$288

Mon 9/229:46 amPWM - LAS

3 stops38h 23mMultiple Airlines

Deal found 7/29

$294

Fly from

Fly to

Route

Depart

Return

Price

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Tue 10/7

2:17 pm-9:12 pm

1 stop9h 55m

Las Vegas Harry Reid Intl

Tue 10/14

11:59 pm-1:22 pm

1 stop10h 23m

$265

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Tue 10/7

6:00 am-10:43 am

1 stop7h 43m

Las Vegas Harry Reid Intl

Mon 10/13

1:10 am-11:14 am

1 stop7h 04m

$271

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sat 9/20

6:33 am-1:30 pm

1 stop9h 57m

Las Vegas Harry Reid Intl

Tue 9/23

1:23 pm-12:11 am

1 stop7h 48m

$273

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sat 11/1

3:20 pm-8:46 pm

1 stop8h 26m

Las Vegas Harry Reid Intl

Sat 11/8

5:20 am-3:48 pm

1 stop7h 28m

$300

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Sat 9/6

1:57 pm-9:14 pm

1 stop10h 17m

$137

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Fri 9/5

6:33 pm-10:47 pm

1 stop7h 14m

$167

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Wed 8/13

5:35 am-3:03 pm

2 stops12h 28m

$194

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Tue 8/5

4:55 pm-10:45 pm

1 stop8h 50m

$288

PortlandLas Vegas

PWM - LAS

PWMLAS

Portland

Mon 9/22

9:46 am-9:09 pm

3 stops38h 23m

$294

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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?

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?

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

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

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

We experienced bad weather, which turned our 1.5 hour flight from Las Vegas to Denver, into 3.5. The pilot and crew kept us updated and explained that we had to circle and or possibly redirect to another airport. After circling for sometime, we were able to land smoothly in Denver. Thank you to all the flight crew, tower control, and all who got us to our destination safely.

Southwest

8.0

Very good

4,238 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Delta

8.0

Very good

7,977 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

United Airlines

7.4

Good

8,899 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

JetBlue

7.3

Good

2,913 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

American Airlines

7.2

Good

10,000 reviews

Southwest

8.0

Very good

4,238 reviews

Reviews

1 / 20

8.0

Excellent

Gina,Jul 2025

LAS - DEN

Related info for your journey

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 $265. Other airlines that can offer you cheap pricing are American Airlines, from $271, and Delta, from $273. JetBlue is currently priced 44% 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 $137. However, be on the lookout for offers from Delta and United Airlines, 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

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Other flights to Las Vegas

Top 5 airlines flying from Portland to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$201	Average$377	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$272	Average$458	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$314	Average$479	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$350	Average$531	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$377	Average$508	FlexibilityNo cancel fee	On-time63%

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$137+ 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 9/6. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Portland to Las Vegas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Portland to Las Vegas Harry Reid Intl are usually found in September or January, booked 81 days in advance, depart on a Tuesday or Wednesday and return on a Wednesday

Cheap flight deals from Portland to Las Vegas

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Portland to Las Vegas

Cheapest flights from Portland to Las VegasExplore 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 July 29, 2025.

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 July 29, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Portland to Las Vegas that are best for you.

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.

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 July 25, 2025.

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

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 July 29, 2025.

Reviews of airlines servicing Las Vegas

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.

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.

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

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

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

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

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

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

Traveling to a place near Las Vegas?

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Alternative routes for Portland to Las Vegas

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Top 5 airlines flying from Portland to Las Vegas

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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 July 29, 2025.