PDX - SUX

$320 Find Cheap Flights from Portland to Sioux City

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Sioux City departing on 7/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to Sioux City, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 20% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Useful Info
Flights Deals

Cheap Flights from Portland to Sioux City (PDX-SUX)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Sioux City

Sat, Jul 12 - Mon, Jul 28
United Airlines Logo
5:25 am - 6:18 pmPDX-SUX
10h 53m2 stops
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$320United Airlines
Find Deal
Fri, Jul 11 - Thu, Jul 31
United Airlines Logo
10:55 am - 6:18 pmPDX-SUX
5h 23m1 stop
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$334United Airlines
Find Deal
Wed, Jul 9 - Wed, Jul 30
United Airlines Logo
5:25 am - 6:18 pmPDX-SUX
10h 53m2 stops
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$344United Airlines
Find Deal
Thu, Jul 3 - Tue, Jul 22
United Airlines Logo
10:54 am - 10:40 pmPDX-SUX
9h 46m1 stop
United Airlines Logo
10:10 am - 3:14 pmSUX-PDX
7h 04m1 stop
$359United Airlines
Find Deal
Sat, Jul 12 - Mon, Jul 28
United Airlines Logo
8:50 am - 6:18 pmPDX-SUX
7h 28m1 stop
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$366United Airlines
Find Deal
Thu, Jul 3 - Sat, Jul 19
United Airlines Logo
10:55 am - 10:40 pmPDX-SUX
9h 45m2 stops
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$369United Airlines
Find Deal
Sat, Aug 9 - Sat, Aug 16
United Airlines Logo
6:43 pm - 6:18 pmPDX-SUX
21h 35m1 stop
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$412United Airlines
Find Deal
Wed, Jul 9 - Thu, Jul 31
United Airlines Logo
8:50 am - 6:18 pmPDX-SUX
7h 28m1 stop
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$414United Airlines
Find Deal
Wed, Jul 9 - Fri, Jul 18
United Airlines Logo
5:25 am - 6:18 pmPDX-SUX
10h 53m2 stops
United Airlines Logo
6:53 pm - 7:42 amSUX-PDX
14h 49m1 stop
$422United Airlines
Find Deal
Sat, Jul 12 - Sat, Jul 26
United Airlines Logo
7:37 am - 6:18 pmPDX-SUX
8h 41m2 stops
United Airlines Logo
6:53 pm - 10:16 pmSUX-PDX
5h 23m1 stop
$424United Airlines
Find Deal
Useful Info

KAYAK's insights & trends for Portland to Sioux City flights

Get data-powered insights and trends into flights from Portland to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Sioux City?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Sioux City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Sioux City is January, where tickets cost $328 (return) on average. On the other hand, the most expensive months are November and March, where the average cost of round-trip tickets is $706 and $638 respectively.

Good to know

Low seasonOctober
High seasonJune
Cheapest flight$320
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Portland to Sioux City

When to book flights from Portland to Sioux City

Are your dates flexible? Find out the best times to travel from Portland to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to Sioux City

  • What is the cheapest flight from Portland to Sioux City?

    In the last 3 days, the lowest price for a flight from Portland to Sioux City was $444 for a one-way ticket and $320 for a round-trip.

  • Do I need a passport to fly between Portland and Sioux City?

    No

  • Which airports will I be using when flying from Portland to Sioux City?

    Portland and Sioux City are both served by 1 main airport. You will leave Portland from Portland and will be arriving at Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Portland to Sioux City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to Sioux City?

    Star Alliance is the only airline alliance operating flights between Portland and Sioux City.

  • How does KAYAK find such low prices on flights from Portland to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Portland with another airline. Booking your flights between Portland and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Portland to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Portland to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8809 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.0Entertainment
Airline reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

2.0 MediocreJack, Jun 2025SAT - IAH
Read more United Airlines reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Everything you need to know for your flight from Portland to Sioux City

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.