$42 Cheap Flights from Portland (PDX) to Las Vegas (LAS)

View $42 flight on Sun, Sep 21, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $42 for one-way flights and $84 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Sun, Sep 7 - Tue, Sep 9
PDX
Portland
LAS
Las Vegas
$84 Roundtrip, just found
$84
Roundtrip
just found
Select Spirit Airlines flight, departing Sun, Sep 7 from Portland to Las Vegas, returning Tue, Sep 9, priced at $84 just found
Spirit Airlines
Thu, Sep 4 - Mon, Sep 8
PDX
Portland
LAS
Las Vegas
$90 Roundtrip, just found
$90
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 4 from Portland to Las Vegas, returning Mon, Sep 8, priced at $90 just found
Spirit Airlines
Tue, Sep 2 - Fri, Sep 5
PDX
Portland
LAS
Las Vegas
$94 Roundtrip, just found
$94
Roundtrip
just found
Select Spirit Airlines flight, departing Tue, Sep 2 from Portland to Las Vegas, returning Fri, Sep 5, priced at $94 just found
Spirit Airlines
Wed, Sep 3 - Fri, Sep 5
PDX
Portland
LAS
Las Vegas
$94 Roundtrip, found 5 hours ago
$94
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Wed, Sep 3 from Portland to Las Vegas, returning Fri, Sep 5, priced at $94 found 5 hours ago
Spirit Airlines
Fri, Nov 7 - Tue, Nov 11
PDX
Portland
LAS
Las Vegas
$95 Roundtrip, just found
$95
Roundtrip
just found
Select Spirit Airlines flight, departing Fri, Nov 7 from Portland to Las Vegas, returning Tue, Nov 11, priced at $95 just found
Spirit Airlines
Thu, Sep 11 - Mon, Sep 15
PDX
Portland
LAS
Las Vegas
$96 Roundtrip, just found
$96
Roundtrip
just found
Select Spirit Airlines flight, departing Thu, Sep 11 from Portland to Las Vegas, returning Mon, Sep 15, priced at $96 just found
Frontier Airlines
Thu, Sep 11 - Mon, Sep 15
PDX
Portland
LAS
Las Vegas
$102 Roundtrip, just found
$102
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Sep 11 from Portland to Las Vegas, returning Mon, Sep 15, priced at $102 just found
Southwest Airlines
Mon, Dec 15 - Wed, Dec 17
PDX
Portland
LAS
Las Vegas
$157 Roundtrip, just found
$157
Roundtrip
just found
Select Southwest Airlines flight, departing Mon, Dec 15 from Portland to Las Vegas, returning Wed, Dec 17, priced at $157 just found
American Airlines
Mon, Dec 15 - Wed, Dec 17
PDX
Portland
LAS
Las Vegas
$177 Roundtrip, just found
$177
Roundtrip
just found
Select American Airlines flight, departing Mon, Dec 15 from Portland to Las Vegas, returning Wed, Dec 17, priced at $177 just found
Delta
Mon, Dec 15 - Wed, Dec 17
PDX
Portland
LAS
Las Vegas
$177 Roundtrip, just found
$177
Roundtrip
just found
Select Delta flight, departing Mon, Dec 15 from Portland to Las Vegas, returning Wed, Dec 17, priced at $177 just found

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

Alternative airports near Las Vegas

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to McCarran Intl. LAS. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $95
LAS
McCarran Intl.
CheapestClosest
Average driving time to city center6 min
Flights from $95
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, Southwest Airlines, Spirit Airlines, United
Roundtrip price
$84
Distance
762 mi
Average flight time
2 hours 11 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 September. 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 $42 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?
Book cheap return fares starting from $74 from Portland Intl. Airport (PDX) to Harry Reid Intl. Airport (LAS). This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Frontier Airlines flight leaving PDX on August 18 2025 and touching down at LAS. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from PDX to LAS?
The cheapest flights from PDX to LAS are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 PDX to LAS?
Jet off from PDX to LAS with Frontier Airlines. This carrier currently offers the cheapest one-way fare on this route, starting at $37. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from PDX on September 28 2025. Prices were last updated on July 23 2025 and have not changed since.
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.

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