Cheapest airlines flights from Portland to Sioux Falls

You can choose from 1 airlines that fly from Portland to Sioux Falls, including American Airlines, Delta Air Lines has lowest fares on this route.
American Airlines logo American Airlines
Airlines are determined based on actual purchased flight tickets from Portland to Sioux Falls according to previous 12 months data from Trip.com.

Search cheap flights from Portland to Sioux Falls in the next 3 months. Based on Trip.com's latest 7-day data, one-way fares start at US$133, and round-trip tickets start at US$259.

Displayed flight fares from Portland to Sioux Falls are based on average prices across airlines for the next 3 months, according to the latest Trip.com database.

Portland to Sioux Falls Flight Details

The distance between Portland and Sioux Falls is about 2,050.72 km. Based on Trip.com's latest data, travel demand is highest in July. The off-season for travel is October.

Cheapest one-way flight priceUS$133
Cheapest return ticket priceUS$259
Cheapest monthOctober
Peak season for travelJuly
Flight distance2,050.72 km
Popular airlineAmerican Airlines
Flight statistics for the Portland–Sioux Falls route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Portland to Sioux Falls (PDX-FSD)?

    Based on Trip.com data, Delta Air Lines offers one-way fares as low as US$133 on Cheapest nonstop routes (e.g. PDX to FSD on Sat, Feb 21), while Delta Air Lines offers Cheapest nonstop round-trips from US$259 departing on Wed, Mar 4 and returning on Wed, Mar 11.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Portland to Sioux Falls is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Portland to Sioux Falls, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sat, Feb 21, with one-way flights priced at just US$133.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Delta Air Lines.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Sioux Falls travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Portland to Sioux Falls is October, when demand for travel is lower.
  • After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Portland to Sioux Falls on February 20, 2026 with Delta Air Lines, with prices starting at US$279.
  • The time difference between Sioux Falls and Portland is 2h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.