Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Washington to Sioux City from $324

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Sioux City departing on 11/19. 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.

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

Find the cheapest flights from Washington to Sioux City

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
$324United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
United Airlines Logo
7:00 am - 5:41 pmPDX-SUX
8h 41m1 stop
United Airlines Logo
1:00 pm - 6:49 pmSUX-PDX
7h 49m1 stop
$334United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
7:00 am - 5:41 pmPDX-SUX
8h 41m1 stop
United Airlines Logo
1:00 pm - 10:59 pmSUX-PDX
11h 59m2 stops
$344United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
5:05 am - 5:41 pmPDX-SUX
10h 36m2 stops
United Airlines Logo
1:00 pm - 12:44 amSUX-PDX
13h 44m2 stops
$384United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
6:00 am - 10:59 pmPDX-SUX
14h 59m3 stops
United Airlines Logo
6:46 pm - 10:56 pmSUX-PDX
6h 10m1 stop
$419United Airlines
Find Deal
Wed, Nov 19 - Sun, Nov 23
United Airlines Logo
5:05 am - 5:41 pmPDX-SUX
10h 36m2 stops
United Airlines Logo
1:00 pm - 12:44 amSUX-PDX
13h 44m2 stops
$423United Airlines
Find Deal
Sat, Feb 21 - Wed, Feb 25
United Airlines Logo
8:30 am - 6:10 pmPDX-SUX
7h 40m1 stop
United Airlines Logo
6:52 pm - 9:38 amSUX-PDX
16h 46m1 stop
$437United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
8:30 am - 6:10 pmPDX-SUX
7h 40m1 stop
United Airlines Logo
6:52 pm - 11:03 amSUX-PDX
18h 11m2 stops
$442United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
5:00 am - 6:10 pmPDX-SUX
11h 10m1 stop
United Airlines Logo
6:52 pm - 9:38 amSUX-PDX
16h 46m1 stop
$460United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10
United Airlines Logo
5:00 am - 6:10 pmPDX-SUX
11h 10m1 stop
United Airlines Logo
6:52 pm - 11:03 amSUX-PDX
18h 11m2 stops
$465United Airlines
Find Deal
Tue, Dec 2 - Wed, Dec 10

United Airlines flights from State of Washington to Sioux City

Our best United Airlines deals on State of Washington to Sioux City flight tickets
United Airlines
Nov 19
PDX8:30 amPortland
7h 38m
1 stop
SUX6:08 pmSioux City Sioux Gateway
Nov 23
SUX6:46 pmSioux City Sioux Gateway
6h 10m
1 stop
PDX10:56 pmPortland
$324
Find similar
United Airlines
Feb 21
PDX7:00 amPortland
8h 41m
1 stop
SUX5:41 pmSioux City Sioux Gateway
Feb 25
SUX1:00 pmSioux City Sioux Gateway
7h 49m
1 stop
PDX6:49 pmPortland
$334
Find similar
United Airlines
Feb 21
PDX7:00 amPortland
8h 41m
1 stop
SUX5:41 pmSioux City Sioux Gateway
Feb 25
SUX1:00 pmSioux City Sioux Gateway
11h 59m
2 stops
PDX10:59 pmPortland
$344
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 November 6, 2025.
Use the filters below to find and compare flights from Washington to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 11/19

8:30 am-6:08 pm

1 stop7h 38m

Sioux City Sioux Gateway

Sun 11/23

6:46 pm-10:56 pm

1 stop6h 10m

$324

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 2/21

7:00 am-5:41 pm

1 stop8h 41m

Sioux City Sioux Gateway

Wed 2/25

1:00 pm-6:49 pm

1 stop7h 49m

$334

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 2/21

7:00 am-5:41 pm

1 stop8h 41m

Sioux City Sioux Gateway

Wed 2/25

1:00 pm-10:59 pm

2 stops11h 59m

$344

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 2/21

5:05 am-5:41 pm

2 stops10h 36m

Sioux City Sioux Gateway

Wed 2/25

1:00 pm-12:44 am

2 stops13h 44m

$384

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 11/19

6:00 am-10:59 pm

3 stops14h 59m

Sioux City Sioux Gateway

Sun 11/23

6:46 pm-10:56 pm

1 stop6h 10m

$419

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Sat 2/21

5:05 am-5:41 pm

2 stops10h 36m

Sioux City Sioux Gateway

Wed 2/25

1:00 pm-12:44 am

2 stops13h 44m

$423

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 12/2

8:30 am-6:10 pm

1 stop7h 40m

Sioux City Sioux Gateway

Wed 12/10

6:52 pm-9:38 am

1 stop16h 46m

$437

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 12/2

8:30 am-6:10 pm

1 stop7h 40m

Sioux City Sioux Gateway

Wed 12/10

6:52 pm-11:03 am

2 stops18h 11m

$442

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 12/2

5:00 am-6:10 pm

1 stop11h 10m

Sioux City Sioux Gateway

Wed 12/10

6:52 pm-9:38 am

1 stop16h 46m

$460

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Tue 12/2

5:00 am-6:10 pm

1 stop11h 10m

Sioux City Sioux Gateway

Wed 12/10

6:52 pm-11:03 am

2 stops18h 11m

$465

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 State of Washington 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 State of Washington is on a Thursday. momondo users have found tickets for Thursday departures for as low as $461. 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 State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $493.

Cheap State of Washington to Sioux City flight deals and tips

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

Direct flights

None
There are no direct flights from State of Washington to Sioux City. There are no popular flight routes from State of Washington to Sioux City.
Search flight deals

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

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

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

  • How old do you have to be to fly from Washington 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 Washington 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.

Best airlines flying from State of Washington to Sioux City

Compare and see reviews for airlines that fly from State of Washington to Sioux City with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $253Free CancellationRating
7.4
9,007 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 Washington to Sioux City?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington to Sioux City. momondo saves you time and could save you money on your trip.

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

momondo does allow users to show only those flights to Sioux City from Washington which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Washington to Sioux City 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 Washington to Sioux City right now. Can momondo alert me if prices change?

Price alerts on flights to Sioux City from Washington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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 12/6
Sat 12/13
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States