Find flight deals from Portland to Sioux Falls for the next 3 months. Book one way flights from ILS 1,083 or round trip flights from ILS 2,960.

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.

Flight Info | Portland to Sioux Falls

The distance between Portland and Sioux Falls is approximately 2,118.93 km. Based on Trip.com's data travel demand peaks in August. The off-season for travel is October.

Cheapest one-way flight priceILS 1,083
Cheapest round-trip ticket priceILS 2,960
Off-season for travelOctober
Peak season for travelAugust
Flight distance2,118.93 km

When is the cheapest time to fly from Portland to Sioux Falls?

The cheapest time for Portland to Sioux Falls flights: Jan 11 to Jan 18 — one way flight prices from ILS 722.

Cheapest flights
From price
Search
  • 714
  • 1421
  • 2128
  • Jan

    284
  • 411
  • 1118
  • 1825
  • Feb

    251
  • 18
  • 815
  • 1522
  • Mar

    221
Displayed fare trends are based on Trip.com's aggregated average of the lowest flight prices from Portland to Sioux Falls, calculated over the upcoming 10 weeks.

Frequently Asked Questions

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

    Based on Trip.com data, United Airlines offers one-way fares as low as ILS 1,083 on Cheapest nonstop routes (e.g. PWM to FSD on Thu, Dec 11), while United Airlines offers Cheapest nonstop round-trips from ILS 2,960 departing on Thu, Dec 25 and returning on Tue, Dec 30.
  • 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 Thu, Dec 11, with one-way flights priced at just ILS 1,083.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is United Airlines.
    · 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 August.
    · 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 December flight calendar, it's currently cheapest to fly from Portland to Sioux Falls on December 25, 2025 with United Airlines, with prices starting at ILS 2,959.
  • The time difference between Sioux Falls and Portland is 1h.
  • 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.