$104 Cheap Flights from Portland (PDX) to Sioux Falls (FSD)

Popular airlines from Portland International Airport (PDX) to Sioux Falls Regional Airport (FSD)

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Cheap Flights from Portland to Sioux Falls (PDX-FSD)

Prices were available within the past 7 days and start at $104 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
United
Frontier Airlines
United
Frontier Airlines
United
American Airlines
Frontier Airlines
Delta
Frontier Airlines
Flights from Portland (PDX) to Sioux Falls (FSD)
Origin airport
Portland Intl.
Destination airport
Sioux Falls Regional
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$208
Distance
1274 mi

Portland to Sioux Falls Flights

The cheapest times to fly from Portland to Sioux Falls

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 Sioux Falls are during the month of May. You can find some of the cheapest flights from Portland to Sioux Falls with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Portland to Sioux Falls

Sunday is one of the best days to book for cheap flights from Portland to Sioux Falls: 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 Sioux Falls

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 Sioux Falls in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 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 Sioux Falls 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 Sioux Falls 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 Sioux Falls Regional Airport (FSD) cost?
Discover the latest flight deals from PDX to FSD by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from PDX to FSD?
The cheapest flights from PDX to FSD are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from PDX to FSD?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that’ll take you from PDX to FSD. Sort your results by “Price (lowest to highest)” to snap up a great deal.
How many flights per day from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD)?
You’ll need to hop on a flight with a layover if you’re traveling from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD). Direct flights don’t operate daily on this route. However, just filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from PDX to FSD?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can change based on a number of factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD)?
Choose a flight from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD) that leaves before 3 PM to reduce the likelihood of delays. Departures after this time have a 22% higher chance of being canceled, on average.**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.
Is it cheaper to buy a plane ticket from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD) last-minute?
Booking your ticket from PDX to FSD shortly before your journey is usually more expensive. But if there’s some wiggle room with your travel times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a PDX to FSD flight and hotel package?
Compared with arranging flights and hotels separately, booking a PDX to FSD flight and hotel package with Expedia could lead to significant savings. What’s more, managing everything in one place takes the hassle out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD)?
It’s generally possible to cancel or reschedule your PDX to FSD flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline’s policies in your itinerary to see what changes are possible and whether any costs are involved. You’ll also find further details on our Customer Service portal.

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*Available to One Key members.