$126 Cheap Flights from Portland (PDX) to Sioux Falls (FSD)

View $126 flight on Wed, Dec 17, 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at $126 for one-way flights and $160 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, Nov 15 - Mon, Nov 17
PDX
Portland
FSD
Sioux Falls
$160 Roundtrip, found 14 hours ago
$160
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Sat, Nov 15 from Portland to Sioux Falls, returning Mon, Nov 17, priced at $160 found 14 hours ago
Frontier Airlines
Sat, Nov 8 - Mon, Nov 17
PDX
Portland
FSD
Sioux Falls
$172 Roundtrip, found 3 days ago
$172
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Nov 8 from Portland to Sioux Falls, returning Mon, Nov 17, priced at $172 found 3 days ago
Frontier Airlines
Thu, Nov 13 - Sun, Nov 16
PDX
Portland
FSD
Sioux Falls
$192 Roundtrip, found 2 days ago
$192
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Nov 13 from Portland to Sioux Falls, returning Sun, Nov 16, priced at $192 found 2 days ago
Frontier Airlines
Sat, Nov 8 - Fri, Nov 14
PDX
Portland
FSD
Sioux Falls
$204 Roundtrip, found 3 days ago
$204
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Sat, Nov 8 from Portland to Sioux Falls, returning Fri, Nov 14, priced at $204 found 3 days ago
Frontier Airlines
Sun, Nov 9 - Mon, Nov 17
PDX
Portland
FSD
Sioux Falls
$212 Roundtrip, found 5 days ago
$212
Roundtrip
found 5 days ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Portland to Sioux Falls, returning Mon, Nov 17, priced at $212 found 5 days ago
Frontier Airlines
Sun, Nov 9 - Sun, Nov 16
PDX
Portland
FSD
Sioux Falls
$214 Roundtrip, found 4 days ago
$214
Roundtrip
found 4 days ago
Select Frontier Airlines flight, departing Sun, Nov 9 from Portland to Sioux Falls, returning Sun, Nov 16, priced at $214 found 4 days ago
United
Tue, Nov 18 - Wed, Nov 19
PDX
Portland
FSD
Sioux Falls
$246 Roundtrip, found 4 days ago
$246
Roundtrip
found 4 days ago
Select United flight, departing Tue, Nov 18 from Portland to Sioux Falls, returning Wed, Nov 19, priced at $246 found 4 days ago
American Airlines
Tue, Nov 18 - Wed, Nov 19
PDX
Portland
FSD
Sioux Falls
$251 Roundtrip, found 4 days ago
$251
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 18 from Portland to Sioux Falls, returning Wed, Nov 19, priced at $251 found 4 days ago
Delta
Sat, Dec 13 - Tue, Dec 16
PDX
Portland
FSD
Sioux Falls
$251 Roundtrip, found 1 day ago
$251
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 13 from Portland to Sioux Falls, returning Tue, Dec 16, priced at $251 found 1 day ago
Alaska Airlines
Tue, Dec 30 - Thu, Jan 8
PDX
Portland
FSD
Sioux Falls
$379 Roundtrip, found 6 days ago
$379
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Tue, Dec 30 from Portland to Sioux Falls, returning Thu, Jan 8, priced at $379 found 6 days ago

Find the cheapest month to fly from Portland (PDX) to Sioux Falls (FSD)

November is typically the cheapest month to fly

From $138 - $679 per traveler.

Alternative airports near Sioux Falls

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

Select flight to Sioux Falls Regional FSD. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $339
FSD
Sioux Falls Regional
CheapestClosest
Average driving time to city center6 min
Flights from $339

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD) cost?
Snag a cheap one-way flight from $126 or cheap return flight from $160 from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD)?
Flying in November may help you find better deals, as it's the cheapest month for flights between PDX and FSD. You'll typically find the lowest prices during off-peak months.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Sioux Falls Regional Airport (FSD)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from PDX to FSD. Then, sort your results by "Price (lowest to highest)" to snag a good 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.

Travel information

Origin airport
Portland Intl.
Destination airport
Sioux Falls Regional
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, United
Roundtrip price
$160
Distance
1274 mi

Book with confidence

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 November. 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 $126 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.

 

Portland to Sioux Falls Flights

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*Available to One Key members.