Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Portland to Sioux City from $321

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sioux City departing on 5/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
4:15 pm - 11:32 pm
PDX
-
SUX
5h 17m
1 stop
United Airlines Logo
6:42 pm - 10:54 pm
SUX
-
PDX
6h 12m
1 stop
$384United Airlines
Thu, Apr 30 - Mon, May 4
United Airlines Logo
4:15 pm - 11:32 pm
PDX
-
SUX
5h 17m
1 stop
United Airlines Logo
12:55 pm - 10:54 pm
SUX
-
PDX
11h 59m
2 stops
$389United Airlines
Thu, Apr 30 - Mon, May 4
United Airlines Logo
5:00 am - 10:41 am
PDX
-
SUX
27h 41m
1 stop
United Airlines Logo
6:00 am - 9:38 am
SUX
-
PDX
5h 38m
1 stop
$482United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
5:00 am - 10:41 am
PDX
-
SUX
27h 41m
1 stop
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$492United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
3:59 pm - 10:41 am
PDX
-
SUX
16h 42m
2 stops
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$497United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
5:00 am - 10:41 am
PDX
-
SUX
27h 41m
1 stop
United Airlines Logo
6:00 am - 9:38 am
SUX
-
PDX
5h 38m
1 stop
$532United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
4:15 pm - 10:41 am
PDX
-
SUX
16h 26m
1 stop
United Airlines Logo
12:55 pm - 12:33 am
SUX
-
PDX
13h 38m
2 stops
$542United Airlines
Sat, May 2 - Tue, May 5
United Airlines Logo
4:07 pm - 11:46 pm
PDX
-
SUX
5h 39m
1 stop
United Airlines Logo
6:30 pm - 5:43 pm
SUX
-
PDX
25h 13m
1 stop
$545United Airlines
Tue, Aug 25 - Fri, Aug 28
United Airlines Logo
1:14 pm - 11:46 pm
PDX
-
SUX
8h 32m
2 stops
United Airlines Logo
6:30 pm - 5:43 pm
SUX
-
PDX
25h 13m
1 stop
$555United Airlines
Tue, Aug 25 - Fri, Aug 28
United Airlines Logo
3:59 pm - 6:06 pm
PDX
-
SUX
24h 07m
3 stops
United Airlines Logo
6:00 am - 12:35 pm
SUX
-
PDX
8h 35m
2 stops
$565United Airlines
Sat, May 2 - Tue, May 5

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

United Airlines flights from Portland to Sioux City

Our best United Airlines deals on Portland to Sioux City flight tickets
United Airlines
Apr 30
PDX4:15 pmPortland
5h 17m
1 stop
SUX11:32 pmSioux City Sioux Gateway
May 4
SUX6:42 pmSioux City Sioux Gateway
6h 12m
1 stop
PDX10:54 pmPortland
$384
United Airlines
Apr 30
PDX4:15 pmPortland
5h 17m
1 stop
SUX11:32 pmSioux City Sioux Gateway
May 4
SUX12:55 pmSioux City Sioux Gateway
11h 59m
2 stops
PDX10:54 pmPortland
$389
United Airlines
Apr 25
PDX7:00 amPortland
8h 56m
1 stop
SUX5:56 pmSioux City Sioux Gateway
Apr 28
SUX12:55 pmSioux City Sioux Gateway
7h 39m
1 stop
PDX6:34 pmPortland
$429

momondo 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, momondo users made 832,500 searches. Data last updated April 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
Quickest round-trip

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Thu 4/30

4:15 pm-11:32 pm

1 stop5h 17m

Sioux City Sioux Gateway

Mon 5/4

6:42 pm-10:54 pm

1 stop6h 12m

$384

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Thu 4/30

4:15 pm-11:32 pm

1 stop5h 17m

Sioux City Sioux Gateway

Mon 5/4

12:55 pm-10:54 pm

2 stops11h 59m

$389

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

5:00 am-10:41 am

1 stop27h 41m

Sioux City Sioux Gateway

Tue 5/5

6:00 am-9:38 am

1 stop5h 38m

$482

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

5:00 am-10:41 am

1 stop27h 41m

Sioux City Sioux Gateway

Tue 5/5

6:00 am-12:35 pm

2 stops8h 35m

$492

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

3:59 pm-10:41 am

2 stops16h 42m

Sioux City Sioux Gateway

Tue 5/5

6:00 am-12:35 pm

2 stops8h 35m

$497

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

5:00 am-10:41 am

1 stop27h 41m

Sioux City Sioux Gateway

Tue 5/5

6:00 am-9:38 am

1 stop5h 38m

$532

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

4:15 pm-10:41 am

1 stop16h 26m

Sioux City Sioux Gateway

Tue 5/5

12:55 pm-12:33 am

2 stops13h 38m

$542

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 8/25

4:07 pm-11:46 pm

1 stop5h 39m

Sioux City Sioux Gateway

Fri 8/28

6:30 pm-5:43 pm

1 stop25h 13m

$545

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 8/25

1:14 pm-11:46 pm

2 stops8h 32m

Sioux City Sioux Gateway

Fri 8/28

6:30 pm-5:43 pm

1 stop25h 13m

$555

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 5/2

3:59 pm-6:06 pm

3 stops24h 07m

Sioux City Sioux Gateway

Tue 5/5

6:00 am-12:35 pm

2 stops8h 35m

$565

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

See travel insights to Sioux City from

How to get the cheapest flight ticket from Portland to Sioux City

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Portland to Sioux City Sioux Gateway?

United Airlines is the most popular carrier operating from Portland to Sioux City Sioux Gateway

What airlines fly to Sioux City?

United Airlines, Southwest and American Airlines are the top three most popular airlines that fly to Sioux City from Portland according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Sioux City. Keep in mind that there are 6 different airlines that fly to Sioux City on a routine basis, so you have a few additional options to choose from.

When to book flights from Portland to Sioux City

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to Sioux City according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to Sioux City (PDX to SUX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Sioux City

Fastest flight time

5h 17m

Direct flights

None
The fastest flight from Portland to Sioux City takes 5h 17m
There are no direct flights from Portland to Sioux City. There are no popular flight routes from Portland to Sioux City.
Search flight deals

Frequently asked questions about flying from Portland to Sioux City

  • How far is Portland to Sioux City Sioux Gateway by plane?

    A flight from Portland to Sioux City Sioux Gateway will travel around 1315.3 mi. A reasonable flight in good conditions will take 5h 17m.

  • When did momondo last update prices for flights from Portland Airport to Sioux City Sioux Gateway Airport?

    Prices for flights from Portland Airport to Sioux City Sioux Gateway Airport are updated daily.

  • How many operators does momondo search for flights from Portland Airport to Sioux City Sioux Gateway Airport?

  • How old do you have to be to fly from Portland Airport to Sioux City Sioux Gateway Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to Sioux City Sioux Gateway Airport.

  • What documentation or ID do you need to fly to Sioux City Sioux Gateway Airport?

    The travel and health documents required for your trip to Sioux City Sioux Gateway Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Sioux City Sioux Gateway Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Portland to Sioux City?

Best airlines flying from Portland to Sioux City

Compare and see reviews for airlines that fly from Portland to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $333Free CancellationRating
7.4
9,594 reviews
Search United Airlines flights

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Sioux City?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Sioux City from Portland.

Can I find flights from Portland to Sioux City with flexible booking policies on momondo?

Yes. All flights to Sioux City from Portland on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Portland to Sioux City?

momondo provides multiple filters to help you find the best flight to Sioux City from Portland. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Portland to Sioux City right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Portland to Sioux City now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Sioux City and let you know when they change.

An easier way to manage your Sioux City trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 5/16
Sat 5/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States