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$234+ Cheap flights from Portland to Sioux Falls (PDX - FSD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — FSD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to Sioux Falls Joe Foss Field are usually found in January or August, booked 86 days in advance, depart on a Tuesday or Saturday and return on a Friday

Cheap flight deals from Portland to Sioux Falls

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Sioux Falls (FSD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 11, 2025.

Round-trip from

$234
(Frontier)

Popular in

December

Cheapest in

January

Average price

$395
From Portland to Sioux Falls Joe Foss Field
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($18 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Portland to Sioux Falls

Cheapest flights from Portland to Sioux Falls
Explore the most affordable flight options available from Portland to Sioux Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Frontier deal was found by Cheapflights users on 9/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/156:05 amPDX - FSD
1 stop6h 04mFrontier
Fri 9/192:54 pmFSD - PDX
1 stop11h 18mFrontier
Deal found 9/8$234
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2510:50 amPDX - FSD
1 stop7h 31mUnited Airlines
Tue 10/286:00 amFSD - PDX
1 stop5h 38mUnited Airlines
Deal found 9/9$251
This United Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:59 pmPDX - FSD
1 stop8h 38mUnited Airlines
Sat 10/45:14 pmFSD - PDX
1 stop5h 52mUnited Airlines
Deal found 9/9$255
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:35 amPDX - FSD
2 stops11h 47mUnited Airlines
Tue 10/76:00 amFSD - PDX
1 stop5h 29mUnited Airlines
Deal found 9/11$256
This American Airlines deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/241:16 pmPDX - FSD
1 stop7h 26mAmerican Airlines
Tue 10/285:25 pmFSD - PDX
1 stop7h 41mAmerican Airlines
Deal found 9/9$260
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/255:40 amPDX - FSD
2 stops11h 39mDelta
Tue 10/285:20 amFSD - PDX
2 stops11h 18mDelta
Deal found 9/9$261
This Delta deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:59 pmPDX - FSD
2 stops12h 14mDelta
Tue 10/285:20 amFSD - PDX
1 stop7h 41mDelta
Deal found 9/9$265
This American Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/83:15 pmPDX - FSD
1 stop6h 24mAmerican Airlines
Mon 12/155:18 pmFSD - PDX
1 stop8h 05mAmerican Airlines
Deal found 9/10$269
This Frontier deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:05 amPDX - FSD
1 stop6h 04mFrontier
Mon 9/222:54 pmFSD - PDX
1 stop11h 18mFrontier
Deal found 9/9$274
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/286:05 amPDX - FSD
1 stop6h 04mFrontier
Mon 10/62:54 pmFSD - PDX
1 stop22h 54mFrontier
Deal found 9/10$277
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/196:05 amPDX - FSD
1 stop6h 04mFrontier
Sun 9/212:54 pmFSD - PDX
1 stop11h 18mFrontier
Deal found 9/10$284

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Sioux Falls that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
Use the filters below to find and compare flights from Portland to Sioux Falls that are best for you.

Fly from

Portland

Fly to

Sioux Falls

Route

Depart

Return

Price

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Tue 11/11

11:43 am-10:27 pm

1 stop8h 44m

Sioux Falls Joe Foss Field

Sat 11/15

6:30 am-1:06 pm

1 stop8h 36m

$251

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 10/4

10:46 am-10:22 pm

1 stop9h 36m

Sioux Falls Joe Foss Field

Tue 10/7

6:00 am-9:29 am

1 stop5h 29m

$251

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 10/24

12:40 am-10:13 am

1 stop7h 33m

Sioux Falls Joe Foss Field

Tue 10/28

5:20 am-11:01 am

1 stop7h 41m

$251

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 10/25

5:34 am-4:35 pm

1 stop9h 01m

Sioux Falls Joe Foss Field

Tue 10/28

2:50 pm-7:27 pm

1 stop6h 37m

$251

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 10/25

10:50 am-8:21 pm

1 stop7h 31m

Sioux Falls Joe Foss Field

Tue 10/28

6:00 am-9:38 am

1 stop5h 38m

$251

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 11/1

4:02 pm-11:44 pm

1 stop5h 42m

Sioux Falls Joe Foss Field

Sat 11/8

11:17 am-9:26 pm

2 stops12h 09m

$256

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Fri 10/3

11:59 pm-10:37 am

1 stop8h 38m

Sioux Falls Joe Foss Field

Sat 10/4

5:14 pm-12:28 am

2 stops9h 14m

$261

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 12/20

3:03 pm-11:58 pm

1 stop6h 55m

$325

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 12/20

1:45 pm-11:07 pm

2 stops7h 22m

$474

PortlandSioux Falls

PDX - FSD

PDXFSD

Portland

Sat 12/20

6:40 pm-2:27 pm

2 stops17h 47m

$509

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Portland to Sioux Falls

Have a flexible travel schedule? Discover the best time to fly to Sioux Falls from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Portland to Sioux Falls

How far ahead should I book a flight from Portland to Sioux Falls?

Use this chart to determine the optimal time to book a round-trip flight from Portland to Sioux Falls. Price data was last updated on August 29, 2025.

The price you pay for your flight from Portland to Sioux Falls may vary depending on when you book. For the best chance of a lower fare, look to book 85 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Portland to Sioux Falls?

Currently, September is the cheapest month in which you can book a flight from Portland to Sioux Falls (average of $334). Flying from Portland to Sioux Falls in December is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from PDX to FSD?

Find hourly flight availability from Portland to Sioux Falls. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

It’s typically best to fly out from Portland to Sioux Falls in the evening. Doing so could potentially save you 26% on the flight price compared to flying in the morning, which is usually more expensive.

What is the cheapest day to fly from Portland to Sioux Falls?

Use this chart to determine the cheapest time to fly round-trip from Portland to Sioux Falls. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Portland to Sioux Falls flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip from Portland to Sioux Falls?

Reviews of airlines servicing Sioux Falls

Get insights into the airlines that provide service to Sioux Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux Falls. Reviews last updated September 11, 2025.
Read through reviews of airlines operating flights from Portland to Sioux Falls, such as Alaska Airlines, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,177 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.0

Overall

8.0

Food

7.1

Crew

8.5

Boarding

8.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Portland to Sioux Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Sioux Falls?

    American Airlines and United Airlines can get you from Portland to Sioux Falls in just under 8h 44m. Your travel time can differ by up to 52m. Airlines will cover a distance of 1273 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Portland to Sioux Falls round-trip?

    Currently priced at $130, Frontier will fly you from Portland to Sioux Falls and back. In addition to Frontier, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and Alaska Airlines - these airlines can fly you to your destination from $238 and $257, respectively. You may be able to fly from Portland to Sioux Falls for 68% less than the average price by searching for these airlines.

  • Can I find deals for flights from Portland to Sioux Falls that include hotel bookings?

    Yes. In addition to deals on Portland to Sioux Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Sioux Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Sioux Falls.

  • Can I find deals for business class flights from Portland to Sioux Falls?

    Yes. Cheapflights offers flight deals from Portland to Sioux Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Portland to Sioux Falls?

    Currently, September is the cheapest month in which you can book a flight from Portland to Sioux Falls (average of $334). Flying from Portland to Sioux Falls in December is currently the most expensive (average of $446). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Sioux Falls?

Book flights to Sioux Falls if you plan to visit one of these locations
Marshall

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Top 5 airlines flying from Portland to Sioux Falls

Discover the top 5 airlines that operate flights from Portland to Sioux Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$130Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$238Average$378FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$257Average$533FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$259Average$426FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$309Average$507FlexibilityNo cancel feeOn-time69%

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