PDX - SUX

$431 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 7/19. 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, 0 bags

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
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Everything you should know

Cheapest round-trip
$431
United Airlines
Sun 7/19Thu 7/30
PDX - SUX • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Portland and Sioux City. You'll need at least 1 connection.
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We hope you love your trip to Sioux City!
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Booking Insights
Flight 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

Sun, Jul 19 - Thu, Jul 30
United Airlines Logo
4:15 pm - 11:41 pm
PDX
-
SUX
5h 26m
1 stop
United Airlines Logo
6:30 pm - 11:03 pm
SUX
-
PDX
6h 33m
1 stop
$431United Airlines
Wed, May 6 - Mon, May 11
United Airlines Logo
5:00 am - 10:41 am
PDX
-
SUX
27h 41m
1 stop
United Airlines Logo
6:42 pm - 10:54 pm
SUX
-
PDX
6h 12m
1 stop
$462United Airlines
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
7:05 pm - 10:46 am
PDX
-
SUX
13h 41m
1 stop
United Airlines Logo
6:00 am - 9:48 am
SUX
-
PDX
5h 48m
1 stop
$480United Airlines
Wed, May 6 - Tue, May 12
United Airlines Logo
7:05 pm - 10:41 am
PDX
-
SUX
13h 36m
1 stop
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$486United Airlines
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
5:00 am - 10:46 am
PDX
-
SUX
27h 46m
1 stop
United Airlines Logo
12:55 pm - 12:44 am
SUX
-
PDX
13h 49m
2 stops
$494United Airlines
Mon, Apr 13 - Mon, Apr 20
United Airlines Logo
5:00 am - 10:46 am
PDX
-
SUX
27h 46m
1 stop
United Airlines Logo
6:00 am - 9:48 am
SUX
-
PDX
5h 48m
1 stop
$497United Airlines
Wed, May 6 - Tue, May 12
United Airlines Logo
7:05 pm - 10:41 am
PDX
-
SUX
13h 36m
1 stop
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$507United Airlines
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
1:39 pm - 10:46 am
PDX
-
SUX
19h 07m
2 stops
United Airlines Logo
12:55 pm - 12:44 am
SUX
-
PDX
13h 49m
2 stops
$509United Airlines
Wed, Apr 15 - Sat, Apr 18
United Airlines Logo
7:05 pm - 10:46 am
PDX
-
SUX
13h 41m
1 stop
United Airlines Logo
6:00 am - 9:48 am
SUX
-
PDX
5h 48m
1 stop
$510United Airlines
Wed, May 13 - Tue, May 19
United Airlines Logo
7:05 pm - 10:41 am
PDX
-
SUX
13h 36m
1 stop
United Airlines Logo
6:00 am - 9:38 am
SUX
-
PDX
5h 38m
1 stop
$519United Airlines
Booking Insights

Good to know

Cheapest flight$431
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 $431 for a round-trip ticket.

  • 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 9431 reviews
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
6.6Food
Airline reviews

OK, we were delayed and had to de plane and reboard.

6.0 GoodJamie, Mar 2026
LAX - EWR
Read more United Airlines reviews

OK, we were delayed and had to de plane and reboard.

United is one airline which regardless of how many separate United tickets in existence, if one flight breaks down, the airline will take care of all the flights.

Both our flights were delayed. Almost didn’t get in the second flight. Staff was rude to the bone.

Both my flight where delayed Had 25min to make it to my transfer flight

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

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

Information on your arrival and departure airports

Portland (PDX)
Sioux City (SUX)