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Sioux City

$345+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SUX
Sep 15 — Sep 221
Tue 9/15
Tue 9/22
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 August 16, 2026.

This United Airlines deal was found by Cheapflights users on 8/13. 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 10/164:07 pm -
1 stop5h 36m
Sat 10/178:35 am -
1 stop9h 21m
Deal found 8/13$345
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sat 9/199:00 am -
2 stops12h 43m
Tue 9/228:06 am -
1 stop9h 50m
Deal found 8/14$456
This United Airlines deal was found by Cheapflights users on 8/12. 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.
Sun 8/167:16 am -
1 stop8h 37m
Tue 8/1811:30 am -
1 stop24h 02m
Deal found 8/12$1,154

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 August 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$345
(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
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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 August 16, 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

PortlandSioux City

PDX Portland - SUX Sioux City Sioux Gateway

PDXSUX

Portland

Fri 10/16

4:07 pm-11:43 pm

1 stop5h 36m

Sioux City Sioux Gateway

Sat 10/17

8:35 am-3:56 pm

1 stop9h 21m

$345
Quickest round-trip

PortlandSioux City

PDX Portland - SUX Sioux City Sioux Gateway

PDXSUX

Portland

Sat 1/9

4:05 pm-11:42 pm

1 stop5h 37m

Sioux City Sioux Gateway

Wed 1/13

6:00 am-9:40 am

1 stop5h 40m

$414

PortlandSioux City

PDX Portland - SUX Sioux City Sioux Gateway

PDXSUX

Portland

Sat 9/19

9:00 am-11:43 pm

2 stops12h 43m

Sioux City Sioux Gateway

Tue 9/22

8:06 am-3:56 pm

1 stop9h 50m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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.

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated August 16, 2026.
Read through reviews of airlines operating flights from Portland to Sioux City, such as United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,105 reviews

Entertainment

7.1

Food

6.7

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!
United Airlines
7.4
Good
10,105 reviews
United Airlines
7.4
Good
10,105 reviews

Entertainment

7.1

Food

6.7

Crew

8.1

Comfort

7.3

Overall

7.4

Boarding

7.7

Reviews

1 / 20
4.0
Okay

Chris,Aug 2026

MIA - ORD

Had to go through TSA again, already purchased bottle drink. TSA would not let through, United changed gates last minute. This experience bad for everyone. Staff rude, not our fault. Staff from Chicago to Wichita excellent!

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 $345, United Airlines can have you in Sioux City from Portland in 5h 36m. 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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Top airline flying from Portland to Sioux City

Discover the top airline that operate flights from Portland to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$347Average$513FlexibilityNo cancel feeOn-time69%

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