$422+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SUX
Oct 28 — Nov 41
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Portland to Sioux City
Cheapest
Best
Last-minute
Cheapest flights from Portland to Sioux CityExplore 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 September 28, 2026.
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 September 28, 2026.
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/304:25 pm -
1 stop5h 18m
Sun 11/16:45 pm -
1 stop6h 24m
Deal found 9/26![United Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/304:25 pm -
1 stop5h 18m
Mon 11/26:45 pm -
2 stops17h 33m
Deal found 9/27![United Airlines logo]()
$592
This United Airlines deal was found by Cheapflights users on 9/23. 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 11/307:15 pm -
1 stop26h 28m
Sat 12/55:00 am -
1 stop8h 41m
Deal found 9/23![United Airlines logo]()
$655
Best flights from Portland to Sioux CityDiscover carefully curated flight deals from Portland to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
Discover carefully curated flight deals from Portland to Sioux City that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. 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 1/307:01 am -
1 stop8h 53m
Wed 2/39:03 am -
2 stops15h 40m
Deal found 9/24![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/301:25 pm -
2 stops8h 18m
Mon 11/26:45 pm -
2 stops21h 52m
Deal found 9/27![United Airlines logo]()
$597
Last-minute flights from Portland to Sioux CityDiscover last-minute flight deals from Portland to Sioux City. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to Sioux City. Data last updated September 28, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/26. 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 10/304:25 pm -
1 stop5h 18m
Sun 11/16:45 pm -
1 stop6h 24m
Deal found 9/26![United Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 9/27. 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 10/304:25 pm -
1 stop5h 18m
Mon 11/26:45 pm -
2 stops17h 33m
Deal found 9/27![United Airlines logo]()
$592
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 September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $422 (United Airlines) |
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 7,457,451 searches. Data last updated September 28, 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
Cheapest round-trip
Quickest round-trip
PortlandSioux City
PDX Portland - SUX Sioux City Sioux Gateway
PDXSUX
Portland
Sat 1/30
7:01 am-5:54 pm
1 stop8h 53m
Sioux City Sioux Gateway
Wed 2/3
9:03 am-10:43 pm
2 stops15h 40m
$464
PortlandSioux City
PDX Portland - SUX Sioux City Sioux Gateway
PDXSUX
Portland
Fri 10/30
1:25 pm-11:43 pm
2 stops8h 18m
Sioux City Sioux Gateway
Mon 11/2
6:45 pm-2:37 pm
2 stops21h 52m
$597
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.
PDX-SUX
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 September 28, 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.
Comfort
7.3
Crew
8.1
Entertainment
7.1
Food
6.7
Overall
7.4
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Crew
8.1
Entertainment
7.1
Food
6.7
Overall
7.4
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
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Portland and Sioux City flights
Browse other Portland and Sioux City flight options. Last updated on September 28, 2026.
Other flights from Portland
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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 7,457,451 searches. Data last updated September 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$343 | Average$481 | FlexibilityNo cancel fee | On-time69% |