$45 Cheap Flights from Portland (PDX) to Las Vegas (LAS)

View $45 flight on Fri, Sep 5, 2025Opens in a new window

Popular airlines from Portland International Airport (PDX) to Harry Reid Intl. Airport (LAS)

Today's featured flight deals from Portland International Airport (PDX) to Harry Reid Intl. Airport (LAS)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Portland to Las Vegas (PDX-LAS)

Prices were available within the past 7 days and start at $45 for one-way flights and $88 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sun, Aug 31 - Thu, Sep 4
PDX
Portland
LAS
Las Vegas
$88 Roundtrip, just found
$88
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 31 from Portland to Las Vegas, returning Thu, Sep 4, priced at $88 just found
Spirit Airlines
Tue, Oct 21 - Sat, Oct 25
PDX
Portland
LAS
Las Vegas
$90 Roundtrip, just found
$90
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Oct 21 from Portland to Las Vegas, returning Sat, Oct 25, priced at $90 just found
Frontier Airlines
Sun, Aug 31 - Thu, Sep 4
PDX
Portland
LAS
Las Vegas
$91 Roundtrip, just found
$91
Roundtrip
just found
Select Frontier Airlines flight, departing Sun, Aug 31 from Portland to Las Vegas, returning Thu, Sep 4, priced at $91 just found
Frontier Airlines
Mon, Sep 22 - Thu, Sep 25
PDX
Portland
LAS
Las Vegas
$94 Roundtrip, just found
$94
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Sep 22 from Portland to Las Vegas, returning Thu, Sep 25, priced at $94 just found
Frontier Airlines
Mon, Sep 22 - Thu, Sep 25
PDX
Portland
LAS
Las Vegas
$95 Roundtrip, just found
$95
Roundtrip
just found
Select Frontier Airlines flight, departing Mon, Sep 22 from Portland to Las Vegas, returning Thu, Sep 25, priced at $95 just found
Spirit Airlines
Fri, Sep 5 - Sun, Sep 7
PDX
Portland
LAS
Las Vegas
$96 Roundtrip, just found
$96
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Sep 5 from Portland to Las Vegas, returning Sun, Sep 7, priced at $96 just found
Spirit Airlines
Tue, Sep 2 - Thu, Sep 4
PDX
Portland
LAS
Las Vegas
$99 Roundtrip, just found
$99
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Sep 2 from Portland to Las Vegas, returning Thu, Sep 4, priced at $99 just found
Hawaiian Airlines
Tue, Nov 11 - Wed, Nov 19
PDX
Portland
LAS
Las Vegas
$121 Roundtrip, found 1 day ago
$121
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Nov 11 from Portland to Las Vegas, returning Wed, Nov 19, priced at $121 found 1 day ago
Southwest Airlines
Wed, Oct 1 - Tue, Oct 7
PDX
Portland
LAS
Las Vegas
$121 Roundtrip, found 1 hour ago
$121
Roundtrip
found 1 hour ago
Select Southwest Airlines flight, departing Wed, Oct 1 from Portland to Las Vegas, returning Tue, Oct 7, priced at $121 found 1 hour ago
Delta
Wed, Oct 1 - Tue, Oct 7
PDX
Portland
LAS
Las Vegas
$141 Roundtrip, found 1 hour ago
$141
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Oct 1 from Portland to Las Vegas, returning Tue, Oct 7, priced at $141 found 1 hour ago

Find the cheapest month to fly from Portland (PDX) to Las Vegas (LAS)

September is typically the cheapest month to fly

From $40 - $90 per traveler.

Graph displaying average flight prices per month

Flights from Portland (PDX) to Las Vegas (LAS)
Origin airport
Portland Intl.
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$88
Distance
762 mi
Average flight time
2 hours 38 mins

Portland to Las Vegas Flights

The cheapest times to fly from Portland to Las Vegas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Portland to Las Vegas are during the month of August. You can find some of the cheapest flights from Portland to Las Vegas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Portland to Las Vegas

Sunday is one of the best days to book for cheap flights from Portland to Las Vegas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Portland to Las Vegas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Portland to Las Vegas in 2025. You can also book with separate airlines for your outbound and return journeys, from $45 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Portland to Las Vegas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Portland to Las Vegas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS) cost?
Lock in a cheap one-way flight from $45 or cheap return flight from $88 from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
August is the most affordable month to fly from PDX to LAS. Traveling during an off-peak travel window is often the key to finding a great deal.
Which airlines fly direct from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
Select from 4 airlines that fly directly from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS). These include:

  • Alaska Airlines
  • Southwest Airlines
  • Spirit Airlines

What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
The cheapest airline to offer flights between Portland Intl. Airport (PDX) and Harry Reid Intl. Airport (LAS) can vary based on your travel dates. Frontier Airlines and Spirit Airlines are just some of the choices offering competitive fares. Use Expedia's filters to compare airlines in one place and find the right PDX to LAS flight that fits your budget.
How many flights per day from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
With an average of 8 direct flights departing from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS) daily, you'll be soaring through the skies in no time.
What are the most popular departure times for flights from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
Flights between PDX and LAS are their busiest at 5 PM. If you'd like a more relaxed atmosphere and potentially cheaper fares, look for a time outside the usual busy windows.
What day of the week has the most flights from PDX to LAS?
If you fly on a Friday, you'll get the greatest range of choices for flights from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS).
What is the earliest flight from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
Portland Intl. Airport (PDX)'s earliest flight to Harry Reid Intl. Airport (LAS) takes off at approximately 5:20AM UTC-8. With a total flight time of 2h 10m, you'll land at around 7:30AM UTC-8.
How long does it take to fly from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
Flights from PDX to LAS have an average travel time of 2 hours and 10 minutes. The distance between the two airports is 760 mi.
What airline has the least delays from PDX to LAS?
Southwest Airlines has the best track record for on-time direct flights from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS), with an on-time score of 87%. Use the Expedia App to see your flight schedule before you leave and get real-time alerts about any changes.
What is the best time to fly from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
Book a flight from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS) that takes off before 3 PM to reduce the risk of cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Las Vegas from Portland Intl. Airport (PDX)?
Browse your flight options from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS). This is the only airport in Las Vegas you can fly into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS) last-minute?
Holding off until just before your departure to book a flight from PDX to LAS often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Keep your travel schedule open for a better chance of snagging a bargain.
Is it cheaper to book a PDX to LAS flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to LAS flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place takes the hassle out of planning your trip. Just pick your flights and choose from our wide range of stays, then customize your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS)?
You can usually reschedule or cancel your PDX to LAS flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.