$138 Cheap Frontier Airlines flights Portland (PDX) to Austin (AUS)

View $138 flight on Mon, Oct 6, 2025Opens in a new window

$138 Cheap Frontier Airlines flights Portland (PDX) to Austin (AUS)

Prices were available within the past 7 days and start at $138 for one-way flights and $185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Fri, Sep 5 - Mon, Sep 8
PDX
Portland
AUS
Austin
$185 Roundtrip, found 1 hour ago
$185
Roundtrip
found 1 hour ago
Select Frontier Airlines flight, departing Fri, Sep 5 from Portland to Austin, returning Mon, Sep 8, priced at $185 found 1 hour ago
Frontier Airlines
Fri, Aug 29 - Sun, Aug 31
PDX
Portland
AUS
Austin
$190 Roundtrip, found 5 hours ago
$190
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Fri, Aug 29 from Portland to Austin, returning Sun, Aug 31, priced at $190 found 5 hours ago
Frontier Airlines
Tue, Sep 2 - Mon, Sep 8
PDX
Portland
AUS
Austin
$215 Roundtrip, just found
$215
Roundtrip
just found
Select Frontier Airlines flight, departing Tue, Sep 2 from Portland to Austin, returning Mon, Sep 8, priced at $215 just found
Flights from Portland (PDX) to Austin (AUS)
Origin airport
Portland Intl.
Destination airport
Austin-Bergstrom Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Spirit Airlines, United
Popular airline
Alaska Airlines
Distance
1712 mi
Average flight time
8 hours 21 mins

Frequently asked questions

How much is a Frontier Airlines flight from Portland Intl. Airport (PDX) to Austin-Bergstrom Intl. Airport (AUS)?
Landing cheap one-way Frontier Airlines flights from PDX to AUS from $138 on Expedia couldn't be simpler --- just filter by "Price (lowest to highest)." Or check out our budget-friendly return fares from $185 for your next break.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from PDX to AUS with Frontier Airlines?
Search for return or one-way flights to Austin in January or December. You could find cheaper fares with Frontier Airlines during these off-peak times.
What is the cheapest time to book flights from Portland Intl. Airport (PDX) to Austin-Bergstrom Intl. Airport (AUS) with Frontier Airlines?
Look for cheap Frontier Airlines flights from Portland Intl. Airport (PDX) to Austin-Bergstrom Intl. Airport (AUS) one to three months before your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and journey, the best day to book a domestic flight is generally Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Frontier Airlines fly nonstop from Portland Intl. Airport (PDX) to Austin-Bergstrom Intl. Airport (AUS)?
Click on the "Nonstop" filter when browsing for direct Frontier Airlines flights from PDX to AUS. It's also a great way to compare other carriers servicing the same nonstop route.
What is the earliest Frontier Airlines flight from PDX to AUS?
To find the earliest departure from PDX to AUS with Frontier Airlines, filter your results by "Early Morning" and "Morning." Booking an early flight usually means you're less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Frontier Airlines fly into in Austin?
Austin-Bergstrom Intl. Airport (AUS) is the primary Austin hub for Frontier Airlines flights from Portland Intl. Airport (PDX).
Why fly with Frontier Airlines from PDX to AUS?
A rewarding loyalty program and the ability to collect points through Frontier Miles are the start of the reasons to travel from PDX to AUS with Frontier Airlines. Plus, by joining Expedia's free One Key™ program, you can receive OneKeyCash™* on top of any airline loyalty program earnings. It's yours to spend on your next adventure.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Frontier Airlines flight from Portland Intl. Airport (PDX) to Austin-Bergstrom Intl. Airport (AUS)?
Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about altering your flights, go to your "Trips," select your flight and click on "Manage Booking." If you'd like the freedom to update your itinerary without additional charges, apply the "No cancel fee" or "Changes included" filter when organizing your next getaway.

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*Available to One Key members.