SUX - SEA

$367 Find Cheap Flights from Sioux City to Seattle

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Sioux City to Seattle departing on 1/21. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Sioux City to Seattle, 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 Sioux City to Seattle, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$367
United Airlines
Wed 1/21Sat 1/24
SUX - SEA • 1 stop
Cheapest one-way
Multiple Airlines
Sat 12/13
SUX - SEA • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Sioux City to Seattle (SUX-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Sioux City to Seattle 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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Sioux City to Seattle

Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
12:45 pm - 6:14 pm
SUX
-
SEA
7h 29m1 stop
United Airlines Logo
3:30 pm - 11:47 pm
SEA
-
SUX
6h 17m1 stop
$367United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
6:00 am - 3:44 pm
SUX
-
SEA
11h 44m2 stops
United Airlines Logo
3:30 pm - 11:47 pm
SEA
-
SUX
6h 17m1 stop
$377United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
6:00 am - 3:44 pm
SUX
-
SEA
11h 44m2 stops
United Airlines Logo
9:00 am - 11:47 pm
SEA
-
SUX
12h 47m2 stops
$382United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
12:45 pm - 6:14 pm
SUX
-
SEA
7h 29m1 stop
United Airlines Logo
8:40 am - 10:55 am
SEA
-
SUX
24h 15m1 stop
$391United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
6:00 am - 3:44 pm
SUX
-
SEA
11h 44m2 stops
United Airlines Logo
12:25 pm - 10:55 am
SEA
-
SUX
20h 30m1 stop
$401United Airlines
Wed, Jan 21 - Sat, Jan 24
United Airlines Logo
12:45 pm - 12:59 am
SUX
-
SEA
14h 14m2 stops
United Airlines Logo
5:00 am - 5:28 pm
SEA
-
SUX
10h 28m2 stops
$422United Airlines
Tue, Dec 30 - Sat, Jan 3
United Airlines Logo
6:54 pm - 6:06 pm
SUX
-
SEA
25h 12m1 stop
United Airlines Logo
8:57 am - 6:13 pm
SEA
-
SUX
7h 16m1 stop
$585United Airlines
Wed, Dec 31 - Sat, Jan 3
United Airlines Logo
11:48 am - 12:59 am
SUX
-
SEA
15h 11m2 stops
United Airlines Logo
8:57 am - 6:13 pm
SEA
-
SUX
7h 16m1 stop
$595United Airlines
Wed, Dec 31 - Sat, Jan 3
United Airlines Logo
11:48 am - 9:55 am
SUX
-
SEA
24h 07m1 stop
United Airlines Logo
8:57 am - 6:13 pm
SEA
-
SUX
7h 16m1 stop
$605United Airlines
Tue, Dec 30 - Sat, Jan 3
United Airlines Logo
6:54 pm - 12:27 pm
SUX
-
SEA
19h 33m2 stops
United Airlines Logo
8:57 am - 6:13 pm
SEA
-
SUX
7h 16m1 stop
$685United Airlines
Booking Insights

KAYAK's insights & trends for Sioux City to Seattle flights

Get data-powered insights and trends into flights from Sioux City to Seattle 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 Sioux City to Seattle?

The average price of all round-trip flights from Sioux City to Seattle clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Sioux City to Seattle, look for departures on Tuesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Seattle, Thursday is the cheapest day to fly and Wednesday is the most expensive.

Find deals

Good to know

Cheapest flight$367
Flight from Sioux City to Seattle

When to book flights from Sioux City to Seattle

Are your dates flexible? Find out the best times to travel from Sioux City to Seattle 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 Sioux City to Seattle

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

    In the last 3 days, the lowest price for a flight from Sioux City to Seattle was $367 for a round-trip ticket.

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

    No

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

    Sioux City and Seattle are both served by 1 main airport. You will leave Sioux City from Sioux City Sioux Gateway and will be arriving at Seattle/Tacoma Intl.

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

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

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

    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 Sioux City to Seattle.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Sioux City 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 Sioux City to Seattle?

    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 Seattle with an airline and back to Sioux City with another airline. Booking your flights between Sioux City and SEA 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 Sioux City to Seattle?

    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 Seattle from Sioux City up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Sioux City to Seattle

Information on your arrival and departure airports

Sioux City (SUX)
Seattle (SEA)