PDX - SUX

$359 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 5/15. 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
$359
United Airlines
Fri 5/15Sun 5/17
PDX - SUX • 1 stop
Cheapest one-way
$467
United Airlines
Fri 5/8
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!
Flight Deals
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

Fri, May 15 - Sun, May 17
United Airlines Logo
4:15 pm - 11:32 pm
PDX
-
SUX
5h 17m
1 stop
United Airlines Logo
6:00 am - 9:38 am
SUX
-
PDX
5h 38m
1 stop
$359United Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
4:15 pm - 11:41 pm
PDX
-
SUX
5h 26m
1 stop
United Airlines Logo
11:32 am - 3:13 pm
SUX
-
PDX
5h 41m
1 stop
$499United Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
11:16 am - 11:41 pm
PDX
-
SUX
10h 25m
2 stops
United Airlines Logo
11:32 am - 5:44 pm
SUX
-
PDX
8h 12m
1 stop
$516United Airlines
Sat, May 30 - Tue, Jun 2
United Airlines Logo
7:00 am - 5:54 pm
PDX
-
SUX
8h 54m
1 stop
United Airlines Logo
7:53 am - 3:56 pm
SUX
-
PDX
10h 03m
1 stop
$573United Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
11:16 am - 11:41 pm
PDX
-
SUX
10h 25m
2 stops
United Airlines Logo
11:32 am - 10:49 pm
SUX
-
PDX
13h 17m
2 stops
$596United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
11:59 pm - 6:06 pm
PDX
-
SUX
16h 07m
2 stops
United Airlines Logo
6:00 am - 9:38 am
SUX
-
PDX
5h 38m
1 stop
$677United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
5:00 am - 6:06 pm
PDX
-
SUX
11h 06m
2 stops
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$1,154United Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
5:15 am - 11:41 pm
PDX
-
SUX
16h 26m
3 stops
United Airlines Logo
11:32 am - 10:49 pm
SUX
-
PDX
13h 17m
2 stops
$1,813United Airlines
Fri, May 15 - Sun, May 17
United Airlines Logo
10:15 pm - 6:06 pm
PDX
-
SUX
17h 51m
2 stops
United Airlines Logo
6:00 am - 8:58 pm
SUX
-
PDX
16h 58m
3 stops
$2,204United Airlines
Booking Insights

Good to know

Cheapest flight$359
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 $467 for a one-way ticket and $359 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 9678 reviews
7.3Comfort
7.1Entertainment
8.1Crew
7.7Boarding
6.6Food
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

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)