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Cheap flights from Washington to Sioux City from $334

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 3/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Washington to Sioux City

Cheap round-trip flights

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
11:10 am - 6:14 pmSEA-SUX
5h 04m1 stop
United Airlines Logo
6:51 pm - 11:29 pmSUX-SEA
6h 38m1 stop
$384United Airlines
Find Deal
Sat, Oct 4 - Wed, Oct 8
United Airlines Logo
11:10 am - 11:00 pmSEA-SUX
9h 50m2 stops
United Airlines Logo
6:51 pm - 11:29 pmSUX-SEA
6h 38m1 stop
$394United Airlines
Find Deal
Sat, Oct 4 - Wed, Oct 8
United Airlines Logo
2:45 pm - 6:13 pmPDX-SUX
25h 28m1 stop
United Airlines Logo
6:54 pm - 10:59 pmSUX-PDX
6h 05m1 stop
$412United Airlines
Find Deal
Wed, Dec 24 - Sun, Jan 4
United Airlines Logo
1:57 pm - 11:00 pmSEA-SUX
7h 03m1 stop
United Airlines Logo
6:51 pm - 11:29 pmSUX-SEA
6h 38m1 stop
$414United Airlines
Find Deal
Sat, Oct 4 - Wed, Oct 8
United Airlines Logo
3:52 pm - 6:13 pmPDX-SUX
24h 21m2 stops
United Airlines Logo
6:54 pm - 10:59 pmSUX-PDX
6h 05m1 stop
$422United Airlines
Find Deal
Wed, Dec 24 - Sun, Jan 4
United Airlines Logo
6:35 am - 6:14 pmSEA-SUX
9h 39m2 stops
United Airlines Logo
6:51 pm - 11:29 pmSUX-SEA
6h 38m1 stop
$424United Airlines
Find Deal
Sat, Oct 4 - Wed, Oct 8
United Airlines Logo
1:32 pm - 11:34 pmPDX-SUX
8h 02m2 stops
United Airlines Logo
12:45 pm - 10:38 pmSUX-PDX
11h 53m2 stops
$429United Airlines
Find Deal
Tue, Mar 3 - Sat, Mar 7
United Airlines Logo
2:45 pm - 6:13 pmPDX-SUX
25h 28m1 stop
United Airlines Logo
6:54 pm - 10:58 pmSUX-PDX
6h 04m1 stop
$437United Airlines
Find Deal
Wed, Dec 24 - Sat, Jan 3

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
Oct 3
PDX2:15 pmPortland
6h 45m
1 stop
SUX11:00 pmSioux City Sioux Gateway
Oct 6
SUX6:51 pmSioux City Sioux Gateway
5h 54m
1 stop
PDX10:45 pmPortland
$334
Find similar
United Airlines
Oct 3
PDX10:50 amPortland
10h 10m
2 stops
SUX11:00 pmSioux City Sioux Gateway
Oct 6
SUX6:51 pmSioux City Sioux Gateway
5h 54m
1 stop
PDX10:45 pmPortland
$344
Find similar
United Airlines
Oct 4
SEA11:10 amSeattle/Tacoma Intl
5h 04m
1 stop
SUX6:14 pmSioux City Sioux Gateway
Oct 8
SUX6:51 pmSioux City Sioux Gateway
6h 38m
1 stop
SEA11:29 pmSeattle/Tacoma Intl
$384
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 September 22, 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

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

SeattleSioux City

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Sat 10/4

11:10 am-6:14 pm

1 stop5h 04m

Sioux City Sioux Gateway

Wed 10/8

6:51 pm-11:29 pm

1 stop6h 38m

$384

SeattleSioux City

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Sat 10/4

11:10 am-11:00 pm

2 stops9h 50m

Sioux City Sioux Gateway

Wed 10/8

6:51 pm-11:29 pm

1 stop6h 38m

$394

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 12/24

2:45 pm-6:13 pm

1 stop25h 28m

Sioux City Sioux Gateway

Sun 1/4

6:54 pm-10:59 pm

1 stop6h 05m

$412

SeattleSioux City

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Sat 10/4

1:57 pm-11:00 pm

1 stop7h 03m

Sioux City Sioux Gateway

Wed 10/8

6:51 pm-11:29 pm

1 stop6h 38m

$414

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 12/24

3:52 pm-6:13 pm

2 stops24h 21m

Sioux City Sioux Gateway

Sun 1/4

6:54 pm-10:59 pm

1 stop6h 05m

$422

SeattleSioux City

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Sat 10/4

6:35 am-6:14 pm

2 stops9h 39m

Sioux City Sioux Gateway

Wed 10/8

6:51 pm-11:29 pm

1 stop6h 38m

$424

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

12:45 pm-10:38 pm

2 stops11h 53m

$429

PortlandSioux City

PDX - SUX

PDXSUX

Portland

Wed 12/24

2:45 pm-6:13 pm

1 stop25h 28m

Sioux City Sioux Gateway

Sat 1/3

6:54 pm-10:58 pm

1 stop6h 04m

$437

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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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.
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  • 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
8,922 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.

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