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Cheap flights from Portland to Sioux City from $318

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Sioux City departing on 10/9. 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

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Find the cheapest flights from Portland to Sioux City

Cheap round-trip flights

United Airlines Logo
2:15 pm - 11:00 pmPDX-SUX
6h 45m1 stop
United Airlines Logo
6:51 pm - 10:46 pmSUX-PDX
5h 55m1 stop
$318United Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 23
United Airlines Logo
2:15 pm - 11:00 pmPDX-SUX
6h 45m1 stop
United Airlines Logo
7:50 am - 3:05 pmSUX-PDX
9h 15m2 stops
$331United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
7:11 am - 5:32 pmPDX-SUX
8h 21m1 stop
United Airlines Logo
6:54 pm - 10:38 pmSUX-PDX
5h 44m1 stop
$334United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
1:32 pm - 11:34 pmPDX-SUX
8h 02m2 stops
United Airlines Logo
6:54 pm - 10:38 pmSUX-PDX
5h 44m1 stop
$344United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
7:30 am - 6:14 pmPDX-SUX
8h 44m2 stops
United Airlines Logo
7:50 am - 3:05 pmSUX-PDX
9h 15m2 stops
$362United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
8:30 am - 6:08 pmPDX-SUX
7h 38m1 stop
United Airlines Logo
6:46 pm - 10:56 pmSUX-PDX
6h 10m1 stop
$375United Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
United Airlines Logo
2:15 pm - 11:00 pmPDX-SUX
6h 45m1 stop
United Airlines Logo
7:50 am - 3:30 pmSUX-PDX
9h 40m1 stop
$393United Airlines
Find Deal
Tue, Sep 30 - Sat, Oct 4
United Airlines Logo
3:54 pm - 6:08 pmPDX-SUX
24h 14m2 stops
United Airlines Logo
6:46 pm - 10:56 pmSUX-PDX
6h 10m1 stop
$442United Airlines
Find Deal
Fri, Nov 7 - Mon, Nov 10
United Airlines Logo
2:15 pm - 11:00 pmPDX-SUX
6h 45m1 stop
United Airlines Logo
7:50 am - 5:21 pmSUX-PDX
11h 31m2 stops
$460United Airlines
Find Deal
Thu, Oct 9 - Thu, Oct 23
United Airlines Logo
7:00 am - 5:32 pmPDX-SUX
32h 32m3 stops
United Airlines Logo
6:54 pm - 10:38 pmSUX-PDX
5h 44m1 stop
$467United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7

United Airlines flights from Portland to Sioux City

Our best United Airlines deals on Portland to Sioux City flight tickets
United Airlines
Oct 9
PDX2:15 pmPortland
6h 45m
1 stop
SUX11:00 pmSioux City Sioux Gateway
Oct 23
SUX6:51 pmSioux City Sioux Gateway
5h 55m
1 stop
PDX10:46 pmPortland
$318
Find similar
United Airlines
Sep 30
PDX2:15 pmPortland
6h 45m
1 stop
SUX11:00 pmSioux City Sioux Gateway
Oct 4
SUX7:50 amSioux City Sioux Gateway
9h 15m
2 stops
PDX3:05 pmPortland
$331
Find similar
United Airlines
Mar 3
PDX7:11 amPortland
8h 21m
1 stop
SUX5:32 pmSioux City Sioux Gateway
Mar 7
SUX6:54 pmSioux City Sioux Gateway
5h 44m
1 stop
PDX10:38 pmPortland
$334
Find similar

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 September 15, 2025.
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

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Thu 10/9

2:15 pm-11:00 pm

1 stop6h 45m

Sioux City Sioux Gateway

Thu 10/23

6:51 pm-10:46 pm

1 stop5h 55m

$318

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 9/30

2:15 pm-11:00 pm

1 stop6h 45m

Sioux City Sioux Gateway

Sat 10/4

7:50 am-3:05 pm

2 stops9h 15m

$331

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 3/3

7:11 am-5:32 pm

1 stop8h 21m

Sioux City Sioux Gateway

Sat 3/7

6:54 pm-10:38 pm

1 stop5h 44m

$334

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 3/3

1:32 pm-11:34 pm

2 stops8h 02m

Sioux City Sioux Gateway

Sat 3/7

6:54 pm-10:38 pm

1 stop5h 44m

$344

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 9/30

7:30 am-6:14 pm

2 stops8h 44m

Sioux City Sioux Gateway

Sat 10/4

7:50 am-3:05 pm

2 stops9h 15m

$362

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 11/7

8:30 am-6:08 pm

1 stop7h 38m

Sioux City Sioux Gateway

Mon 11/10

6:46 pm-10:56 pm

1 stop6h 10m

$375

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 9/30

2:15 pm-11:00 pm

1 stop6h 45m

Sioux City Sioux Gateway

Sat 10/4

7:50 am-3:30 pm

1 stop9h 40m

$393

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 11/7

3:54 pm-6:08 pm

2 stops24h 14m

Sioux City Sioux Gateway

Mon 11/10

6:46 pm-10:56 pm

1 stop6h 10m

$442

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Thu 10/9

2:15 pm-11:00 pm

1 stop6h 45m

Sioux City Sioux Gateway

Thu 10/23

7:50 am-5:21 pm

2 stops11h 31m

$460

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 3/3

7:00 am-5:32 pm

3 stops32h 32m

Sioux City Sioux Gateway

Sat 3/7

6:54 pm-10:38 pm

1 stop5h 44m

$467

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 day to depart on your flight to Sioux City?

On average, the least expensive day to fly to Sioux City from Portland is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $421. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Wednesday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $596.

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

Direct flights

None
There are no direct flights from Portland to Sioux City. There are no popular flight routes from Portland to Sioux City.
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  • 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 6h 45m.

  • 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 $278Free CancellationRating
7.4
8,929 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.

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