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Sioux City

$351+ Cheap flights from Portland to Sioux City (PDX - SUX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SUX
Jul 4 — Jul 111
Sat 7/4
Sat 7/11
1 adult, Economy
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Cheap flight deals from Portland to Sioux City

Cheapest flights from Portland to Sioux City
Explore the most affordable flight options available from Portland to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 4, 2026.

This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/24:15 pm
PDX
-
SUX
1 stop5h 26m
United Airlines
Thu 7/96:35 pm
SUX
-
PDX
1 stop6h 38m
United Airlines
Deal found 6/2$351
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/74:15 pm
PDX
-
SUX
1 stop5h 26m
United Airlines
Sun 8/96:35 pm
SUX
-
PDX
1 stop6h 38m
United Airlines
Deal found 5/30$356
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:15 pm
PDX
-
SUX
1 stop5h 29m
United Airlines
Tue 6/238:08 am
SUX
-
PDX
2 stops14h 46m
United Airlines
Deal found 6/4$505
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:15 pm
PDX
-
SUX
1 stop5h 29m
United Airlines
Sun 6/216:30 pm
SUX
-
PDX
1 stop6h 30m
United Airlines
Deal found 6/4$518
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/278:45 am
PDX
-
SUX
1 stop7h 26m
United Airlines
Tue 12/16:46 pm
SUX
-
PDX
1 stop28h 03m
United Airlines
Deal found 6/1$617
This United Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:50 pm
PDX
-
SUX
1 stop14h 07m
United Airlines
Mon 7/611:32 am
SUX
-
PDX
1 stop13h 41m
United Airlines
Deal found 6/1$630
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/176:50 pm
PDX
-
SUX
1 stop26h 54m
United Airlines
Sun 6/216:30 pm
SUX
-
PDX
1 stop6h 30m
United Airlines
Deal found 6/2$635

Find flight deals from Portland to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$351
(United Airlines)
Provider with most accurate pricing for Portland-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-Sioux City Sioux Gateway flights.
Search Deals
From Portland to Sioux City Sioux Gateway
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland to Sioux City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 4, 2026.
Use the filters below to find and compare flights from Portland to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 8/7

4:15 pm-11:41 pm

1 stop5h 26m

Sioux City Sioux Gateway

Sun 8/9

6:35 pm-11:13 pm

1 stop6h 38m

$356

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Thu 7/2

4:15 pm-11:41 pm

1 stop5h 26m

Sioux City Sioux Gateway

Thu 7/9

11:32 am-8:54 pm

2 stops11h 22m

$512

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Mon 6/29

6:50 pm-10:57 am

1 stop14h 07m

Sioux City Sioux Gateway

Mon 7/6

11:32 am-11:13 pm

1 stop13h 41m

$630

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 6/17

6:50 pm-11:44 pm

1 stop26h 54m

Sioux City Sioux Gateway

Sun 6/21

6:30 pm-11:00 pm

1 stop6h 30m

$635

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 6/19

1:02 pm-5:53 pm

2 stops26h 51m

Sioux City Sioux Gateway

Tue 6/23

8:08 am-8:54 pm

2 stops14h 46m

$692

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 6/26

5:00 am-11:41 pm

1 stop16h 41m

Sioux City Sioux Gateway

Wed 7/1

8:10 am-9:47 am

2 stops27h 37m

$705

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/30

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Portland-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Sioux City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Portland with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Portland to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Portland to Sioux City?

    For as low as $356, United Airlines can have you in Sioux City from Portland in 5h 26m. Airlines will cover a distance of 1314 mi.

  • Can I find deals for flights from Portland to Sioux City that include hotel bookings?

    Yes. In addition to deals on Portland to Sioux City flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to Sioux City?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to Sioux City.

  • Can I find deals for business class flights from Portland to Sioux City?

    Yes. Cheapflights offers flight deals from Portland to Sioux City by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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