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SEA - SUX

$297 Find cheap flights from Seattle to Sioux City

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Sioux City departing on 7/31. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Fri 7/12
Fri 7/19

Search hundreds of travel sites at once for deals on flights to Sioux City

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Sioux City, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Sioux City, as well as popular online travel agencies
In the last 7 days travelers have searched 44,148,666 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Sioux City (SEA-SUX)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Sioux City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
3:37 pm - 6:26 pmSEA-SUX
24h 49m1 stop
3:35 pm - 9:20 pmSUX-SEA
7h 45m1 stop
$466United Airlines
Find Deal
Wed, Aug 7 - Tue, Aug 20
6:35 pm - 6:26 pmSEA-SUX
21h 51m1 stop
3:35 pm - 10:22 pmSUX-SEA
8h 47m2 stops
$475United Airlines
Find Deal
Wed, Aug 7 - Tue, Aug 20
3:37 pm - 6:26 pmSEA-SUX
24h 49m1 stop
7:20 am - 9:59 pmSUX-SEA
16h 39m3 stops
$480United Airlines
Find Deal
Wed, Aug 7 - Tue, Aug 20
6:45 am - 6:26 pmSEA-SUX
9h 41m2 stops
7:20 am - 9:59 pmSUX-SEA
16h 39m3 stops
$508United Airlines
Find Deal
Wed, Aug 7 - Tue, Aug 20
2:25 pm - 6:26 pmSEA-SUX
26h 01m1 stop
7:01 pm - 10:45 pmSUX-SEA
5h 44m1 stop
$509United Airlines
Find Deal
Mon, Jul 22 - Tue, Jul 30
6:35 pm - 6:26 pmSEA-SUX
21h 51m1 stop
7:01 pm - 10:45 pmSUX-SEA
5h 44m1 stop
$516United Airlines
Find Deal
Thu, Jul 25 - Sun, Jul 28
12:30 am - 10:53 pmSEA-SUX
20h 23m1 stop
3:35 pm - 9:20 pmSUX-SEA
7h 45m1 stop
$527United Airlines
Find Deal
Tue, Aug 6 - Tue, Aug 20
12:30 am - 10:53 pmSEA-SUX
20h 23m1 stop
7:20 am - 6:39 pmSUX-SEA
13h 19m2 stops
$536United Airlines
Find Deal
Tue, Aug 6 - Tue, Aug 20
12:30 am - 10:53 pmSEA-SUX
20h 23m1 stop
7:20 am - 9:59 pmSUX-SEA
16h 39m3 stops
$541United Airlines
Find Deal
Tue, Aug 6 - Tue, Aug 20
4:30 pm - 6:26 pmSEA-SUX
23h 56m2 stops
7:01 pm - 10:45 pmSUX-SEA
5h 44m1 stop
$558United Airlines
Find Deal
Mon, Jul 22 - Tue, Jul 30

Flights from Seattle to Sioux City - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Sioux City to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Seattle to Sioux City?

The average price of all flights from Seattle to Sioux City clicked on KAYAK for each day over the last 12 months.
Your flight ticket price will generally be cheaper if you fly to Sioux City on a Monday and more expensive on a Wednesday. On your return trip to Seattle, you should consider flying back on a Monday, and avoid Thursdays for better deals.

Good to know

Cheapest flight

$297
Flight from Seattle to Sioux City

When to book flights from Seattle to Sioux City

Are your dates flexible? Find out the best times to travel from Seattle to Sioux City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Sioux City

  • What is the cheapest flight from Seattle to Sioux City?

    In the last 3 days, the lowest price for a flight from Seattle to Sioux City was $297 for a one-way ticket and $466 for a round-trip.

  • Do I need a passport to fly between Seattle and Sioux City?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which airports will I be using when flying from Seattle to Sioux City?

    On your way to Sioux City, you’ll fly out from Seattle/Tacoma Intl. You’ll be landing at Sioux City Sioux Gateway.

  • Which aircraft models fly most regularly from Seattle to Sioux City?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Seattle to Sioux City?

    Star Alliance is the only airline alliance operating flights between Seattle and Sioux City.

  • How does KAYAK find such low prices on flights from Seattle to Sioux City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Sioux City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Sioux City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sioux City from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Sioux City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sioux City with an airline and back to Seattle with another airline. Booking your flights between Seattle and SUX can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Sioux City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sioux City from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Seattle to Sioux City

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Sioux City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Sioux City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 10000 reviews
8.1Crew
7.2Comfort
7.7Boarding
6.7Food
7.1Entertainment
Airline reviews

The entertainment wasn’t playing in the app or online.

4.0 OkayJohn, Jun 2024SFO - DCA
Read more about United Airlines reviews

The entertainment wasn’t playing in the app or online.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Book cheap flights from Seattle to Sioux City

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Sioux City found on KAYAK in the last 72 hours.
7/31Wed
1 stopUnited Airlines
11h 16mSEA-SUX
$297
7/31Wed
2 stopsUnited Airlines
24h 51mSEA-SUX
$326
7/30Tue
1 stopUnited Airlines
20h 23mSEA-SUX
$342
7/31Wed
3 stopsUnited Airlines
11h 55mSEA-SUX
$1,243

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Seattle - Sioux City Flights

Departure:

Seattle (SEA)United States

Destination:

Sioux City (SUX)United States

Return flight deals:

Sioux City - Seattle

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