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Cheap flights from Sioux City to Portland from $356

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Sioux City to Portland departing on 7/7. 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 Sioux City to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:43 pm - 10:54 pm
SUX
-
PDX
6h 11m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$404United Airlines
Fri, Sep 4 - Sat, Sep 12
United Airlines Logo
6:43 pm - 10:54 pm
SUX
-
PDX
6h 11m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$448United Airlines
Fri, Sep 4 - Tue, Sep 15
United Airlines Logo
11:30 am - 3:03 pm
SUX
-
PDX
5h 33m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$464United Airlines
Sun, Sep 6 - Wed, Sep 16
United Airlines Logo
6:43 pm - 10:54 pm
SUX
-
PDX
6h 11m
1 stop
United Airlines Logo
9:00 am - 11:43 pm
PDX
-
SUX
12h 43m
2 stops
$498United Airlines
Fri, Sep 4 - Tue, Sep 15
United Airlines Logo
6:43 pm - 10:54 pm
SUX
-
PDX
6h 11m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$504United Airlines
Thu, Sep 3 - Wed, Sep 16
United Airlines Logo
11:30 am - 3:03 pm
SUX
-
PDX
5h 33m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$508United Airlines
Sun, Sep 6 - Tue, Sep 15
United Airlines Logo
11:30 am - 3:05 pm
SUX
-
PDX
5h 35m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$533United Airlines
Wed, Sep 2 - Sat, Sep 12
United Airlines Logo
11:30 am - 3:05 pm
SUX
-
PDX
5h 35m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$540United Airlines
Mon, Sep 7 - Thu, Sep 10
United Airlines Logo
6:43 pm - 10:54 pm
SUX
-
PDX
6h 11m
1 stop
United Airlines Logo
4:07 pm - 11:43 pm
PDX
-
SUX
5h 36m
1 stop
$548United Airlines
Thu, Sep 3 - Tue, Sep 15
United Airlines Logo
11:30 am - 3:03 pm
SUX
-
PDX
5h 33m
1 stop
United Airlines Logo
9:00 am - 11:43 pm
PDX
-
SUX
12h 43m
2 stops
$558United Airlines
Sun, Sep 6 - Tue, Sep 15

United Airlines flights from Sioux City to Portland

Our best United Airlines deals on Sioux City to Portland flight tickets
United Airlines
Sep 4
SUX6:43 pmSioux City Sioux Gateway
6h 11m
1 stop
PDX10:54 pmPortland
Sep 12
PDX4:07 pmPortland
5h 36m
1 stop
SUX11:43 pmSioux City Sioux Gateway
$404
United Airlines
Sep 4
SUX6:43 pmSioux City Sioux Gateway
6h 11m
1 stop
PDX10:54 pmPortland
Sep 15
PDX4:07 pmPortland
5h 36m
1 stop
SUX11:43 pmSioux City Sioux Gateway
$448
United Airlines
Sep 6
SUX11:30 amSioux City Sioux Gateway
5h 33m
1 stop
PDX3:03 pmPortland
Sep 16
PDX4:07 pmPortland
5h 36m
1 stop
SUX11:43 pmSioux City Sioux Gateway
$464

momondo 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, momondo users made 832,500 searches. Data last updated May 28, 2026.
Use the filters below to find and compare flights from Sioux City to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Fri 9/4

6:43 pm-10:54 pm

1 stop6h 11m

Portland

Sat 9/12

4:07 pm-11:43 pm

1 stop5h 36m

$404

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Fri 9/4

6:43 pm-10:54 pm

1 stop6h 11m

Portland

Tue 9/15

4:07 pm-11:43 pm

1 stop5h 36m

$448
Quickest round-trip

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Sun 9/6

11:30 am-3:03 pm

1 stop5h 33m

Portland

Wed 9/16

4:07 pm-11:43 pm

1 stop5h 36m

$464

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Fri 9/4

6:43 pm-10:54 pm

1 stop6h 11m

Portland

Tue 9/15

9:00 am-11:43 pm

2 stops12h 43m

$498

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Thu 9/3

6:43 pm-10:54 pm

1 stop6h 11m

Portland

Wed 9/16

4:07 pm-11:43 pm

1 stop5h 36m

$504

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Sun 9/6

11:30 am-3:03 pm

1 stop5h 33m

Portland

Tue 9/15

4:07 pm-11:43 pm

1 stop5h 36m

$508

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Wed 9/2

11:30 am-3:05 pm

1 stop5h 35m

Portland

Sat 9/12

4:07 pm-11:43 pm

1 stop5h 36m

$533

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Mon 9/7

11:30 am-3:05 pm

1 stop5h 35m

Portland

Thu 9/10

4:07 pm-11:43 pm

1 stop5h 36m

$540

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Thu 9/3

6:43 pm-10:54 pm

1 stop6h 11m

Portland

Tue 9/15

4:07 pm-11:43 pm

1 stop5h 36m

$548

Sioux CityPortland

SUX - PDX

SUXPDX

Sioux City Sioux Gateway

Sun 9/6

11:30 am-3:03 pm

1 stop5h 33m

Portland

Tue 9/15

9:00 am-11:43 pm

2 stops12h 43m

$558

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Portland from

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

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 Sioux City Sioux Gateway to Portland?

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

What airlines fly to Portland?

United Airlines, Southwest and Delta are the top three most popular airlines that fly to Portland from Sioux City according to our data. United Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Portland. Keep in mind that there are 6 different airlines that fly to Portland on a routine basis, so you have a few additional options to choose from.

When to book flights from Sioux City to Portland

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

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

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

Fastest flight time

6h 38m

Direct flights

None
The fastest flight from Sioux City to Portland takes 6h 38m
There are no direct flights from Sioux City to Portland. There are no popular flight routes from Sioux City to Portland.
Search flight deals

Frequently asked questions about flying from Sioux City to Portland

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

    The straight-line distance from Sioux City Sioux Gateway to Portland is 1315.3 mi. By plane, this route typically takes 6h 38m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Sioux City Sioux Gateway Airport to Portland Airport.

  • What documentation or ID do you need to fly to Portland Airport?

    The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from Sioux City to Portland

Compare and see reviews for airlines that fly from Sioux City to Portland with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $273Free CancellationRating
7.4
9,751 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Rockaway Beach
Beaverton
Depoe Bay
Hillsboro
Tigard
Hood River
Longview
Troutdale
Newberg
The Dalles
McMinnville
Gresham
Clackamas

Why use momondo?

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

It is quick and easy to find Sioux City to Portland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portland that suits you.

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

Yes. momondo enables you to select and highlight flights to Portland from Sioux City with this policy.

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

Once you have performed a search for Sioux City to Portland flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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

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