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$274+ Cheap flights from Sioux City to Portland (SUX - PDX)

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — PDX
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Sioux City to Portland

Cheapest flights from Sioux City to Portland
Explore the most affordable flight options available from Sioux City to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 3/56:30 pm
SUX
-
PDX
1 stop6h 29m
United Airlines
Wed 3/113:52 pm
PDX
-
SUX
1 stop5h 49m
United Airlines
Deal found 1/26$354
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 3/196:30 pm
SUX
-
PDX
1 stop6h 30m
United Airlines
Wed 3/251:39 pm
PDX
-
SUX
2 stops8h 02m
United Airlines
Deal found 1/26$425
This United Airlines deal was found by Cheapflights users on 1/25. 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 3/41:00 pm
SUX
-
PDX
1 stop7h 49m
United Airlines
Sat 3/75:05 am
PDX
-
SUX
1 stop26h 40m
United Airlines
Deal found 1/25$450
This United Airlines deal was found by Cheapflights users on 1/26. 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 3/206:10 am
SUX
-
PDX
2 stops18h 54m
United Airlines
Wed 3/251:39 pm
PDX
-
SUX
2 stops8h 02m
United Airlines
Deal found 1/26$538
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Tue 2/106:00 am
SUX
-
PDX
1 stop5h 45m
United Airlines
Sat 2/145:05 am
PDX
-
SUX
1 stop27h 40m
United Airlines
Deal found 1/26$555

Find flight deals from Sioux City to Portland

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Portland (PDX). 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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$274
(United Airlines)
Provider with most accurate pricing for Sioux City Sioux Gateway-Portland flight deals.
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Provider most trusted by Cheapflights users for Sioux City Sioux Gateway-Portland flights.
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From Sioux City Sioux Gateway to Portland
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Portland 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 January 26, 2026.
Use the filters below to find and compare flights from Sioux City to Portland that are best for you.

Fly from

Sioux City

Fly to

Portland

Route

Depart

Return

Price

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Thu 3/5

6:30 pm-10:59 pm

1 stop6h 29m

Portland

Wed 3/11

3:52 pm-11:41 pm

1 stop5h 49m

$274

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Thu 3/19

6:10 am-9:54 am

1 stop5h 44m

Portland

Wed 3/25

3:52 pm-11:41 pm

1 stop5h 49m

$274

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Fri 3/20

6:30 pm-11:00 pm

1 stop6h 30m

Portland

Wed 3/25

1:39 pm-11:41 pm

2 stops8h 02m

$328

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

  • Most accurate provider: When it comes to deals on Sioux City-Portland flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Sioux City-Portland flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Sioux City-Portland flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Sioux City-Portland 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 Sioux City-Portland 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 Sioux City to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from Sioux City 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.

Cheapflights Insights

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

What is the cheapest month to book a flight from Sioux City to Portland?

Currently, February is the cheapest month in which you can book a flight from Sioux City to Portland (average of $94). Flying from Sioux City to Portland in November is currently the most expensive (average of $274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. 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 Portland. Reviews last updated January 26, 2026.
Read reviews from past customers who have flown United Airlines from Sioux City to Portland. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,199 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,199 reviews
United Airlines
7.4
Good
9,199 reviews

Crew

8.1

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Sioux City to Portland. 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 Sioux City to Portland?

    There are many flights that can get you from Sioux City to Portland in 6h 29m. Fly via United Airlines to get the fastest option. There are 1314 mi between Sioux City and Portland.

  • What is the cheapest airline to fly from Sioux City to Portland round-trip?

    Cheapflights users have booked flights from Sioux City to Portland round-trip from $273.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Sioux City to Portland?

    Currently, February is the cheapest month in which you can book a flight from Sioux City to Portland (average of $94). Flying from Sioux City to Portland in November is currently the most expensive (average of $274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Vancouver
Seaside
Clackamas
Lincoln City
Longview
Lake Oswego
Beaverton
Hillsboro
Troutdale
Cannon Beach
Long Beach
McMinnville
Tigard
The Dalles
Depoe Bay
Stevenson
Wilsonville
Tillamook
Pacific City
Gresham

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Sioux City to Portland

Discover the top airline that operate flights from Sioux City to Portland. 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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$273Average$508FlexibilityNo cancel feeOn-time69%

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