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 44% 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 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?

As of December 2025, there is 1 operator available to choose from 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.

$286 Cheap Flights from Portland to Sioux City in 2025/26

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Find the cheapest flights from Portland to Sioux City

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 5:28 pm

PDX

SUX

8h 28m1 stop

6:00 am - 9:45 am

SUX

PDX

5h 45m1 stop

$354United Airlines

Wed, Jan 7 - Sat, Jan 10

5:00 am - 5:28 pm

PDX

SUX

10h 28m2 stops

6:00 am - 9:45 am

SUX

PDX

5h 45m1 stop

$364United Airlines

Wed, Jan 7 - Sat, Jan 10

5:00 am - 5:28 pm

PDX

SUX

10h 28m2 stops

6:00 am - 12:33 pm

SUX

PDX

8h 33m2 stops

$369United Airlines

Wed, Jan 7 - Sat, Jan 10

3:50 pm - 11:47 pm

PDX

SUX

29h 57m3 stops

12:45 pm - 12:42 am

SUX

PDX

13h 57m2 stops

$472United Airlines

Wed, Jan 7 - Sat, Jan 10

9:00 am - 6:13 pm

PDX

SUX

7h 13m1 stop

6:54 pm - 10:59 pm

SUX

PDX

6h 05m1 stop

$509United Airlines

Fri, Jan 2 - Sun, Jan 4

9:00 am - 6:13 pm

PDX

SUX

7h 13m1 stop

6:54 pm - 10:46 pm

SUX

PDX

29h 52m2 stops

$610United Airlines

Fri, Jan 2 - Sun, Jan 4

4:20 pm - 11:42 pm

PDX

SUX

5h 22m1 stop

6:30 pm - 12:19 pm

SUX

PDX

43h 49m3 stops

$661United Airlines

Tue, Apr 21 - Thu, Apr 23

11:59 pm - 5:32 pm

PDX

SUX

15h 33m1 stop

12:45 pm - 6:54 pm

SUX

PDX

8h 09m1 stop

$663United Airlines

Tue, Apr 7 - Thu, Apr 9

7:42 pm - 5:32 pm

PDX

SUX

19h 50m2 stops

12:45 pm - 6:54 pm

SUX

PDX

8h 09m1 stop

$673United Airlines

Tue, Apr 7 - Thu, Apr 9

7:42 pm - 5:32 pm

PDX

SUX

19h 50m2 stops

12:45 pm - 12:54 am

SUX

PDX

14h 09m2 stops

$678United Airlines

Tue, Apr 7 - Thu, Apr 9

United Airlines flights from Portland to Sioux City

Our best United Airlines deals on Portland to Sioux City flight tickets

United Airlines

Jan 7

PDX7:00 amPortland

8h 28m

1 stop

SUX5:28 pmSioux City Sioux Gateway

Jan 10

SUX6:00 amSioux City Sioux Gateway

5h 45m

1 stop

PDX9:45 amPortland

$354

Find similar

United Airlines

Jan 7

PDX5:00 amPortland

10h 28m

2 stops

SUX5:28 pmSioux City Sioux Gateway

Jan 10

SUX6:00 amSioux City Sioux Gateway

5h 45m

1 stop

PDX9:45 amPortland

$364

Find similar

United Airlines

Jan 7

PDX5:00 amPortland

10h 28m

2 stops

SUX5:28 pmSioux City Sioux Gateway

Jan 10

SUX6:00 amSioux City Sioux Gateway

8h 33m

2 stops

PDX12:33 pmPortland

$369

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 1/7

7:00 am-5:28 pm

1 stop8h 28m

Sioux City Sioux Gateway

Sat 1/10

6:00 am-9:45 am

1 stop5h 45m

$354

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 1/7

5:00 am-5:28 pm

2 stops10h 28m

Sioux City Sioux Gateway

Sat 1/10

6:00 am-9:45 am

1 stop5h 45m

$364

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 1/7

5:00 am-5:28 pm

2 stops10h 28m

Sioux City Sioux Gateway

Sat 1/10

6:00 am-12:33 pm

2 stops8h 33m

$369

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 1/7

3:50 pm-11:47 pm

3 stops29h 57m

Sioux City Sioux Gateway

Sat 1/10

12:45 pm-12:42 am

2 stops13h 57m

$472

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 1/2

9:00 am-6:13 pm

1 stop7h 13m

Sioux City Sioux Gateway

Sun 1/4

6:54 pm-10:59 pm

1 stop6h 05m

$509

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Fri 1/2

9:00 am-6:13 pm

1 stop7h 13m

Sioux City Sioux Gateway

Sun 1/4

6:54 pm-10:46 pm

2 stops29h 52m

$610

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 4/21

4:20 pm-11:42 pm

1 stop5h 22m

Sioux City Sioux Gateway

Thu 4/23

6:30 pm-12:19 pm

3 stops43h 49m

$661

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 4/7

11:59 pm-5:32 pm

1 stop15h 33m

Sioux City Sioux Gateway

Thu 4/9

12:45 pm-6:54 pm

1 stop8h 09m

$663

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 4/7

7:42 pm-5:32 pm

2 stops19h 50m

Sioux City Sioux Gateway

Thu 4/9

12:45 pm-6:54 pm

1 stop8h 09m

$673

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 4/7

7:42 pm-5:32 pm

2 stops19h 50m

Sioux City Sioux Gateway

Thu 4/9

12:45 pm-12:54 am

2 stops14h 09m

$678

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Sioux City?

The cheapest month to fly to Sioux City from Portland is in September. Flight prices, which tend to average around $278, are often lower during this time because this is during the off-season. The month of January is another great option to travel to Sioux City, with average flight prices from Portland averaging around $328.

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

Fastest flight time	5h 22m
Direct flights	None

The fastest flight from Portland to Sioux City takes 5h 22m

There are no direct flights from Portland to Sioux City. There are no popular flight routes from Portland to Sioux City.

Search flight deals

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 22m.
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?
As of December 2025, there is 1 operator available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to Sioux City is United Airlines (100% of total bookings).

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 Airlines	PriceFrom $278	Free Cancellation	Rating 7.4 9,094 reviews		Search United Airlines flights

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.