Cheap flights from Seattle to Sioux City (SEA - SUX) from $449

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight to Sioux City departing on 3/12. 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.
SEA — SUX
Mar 5 — Mar 121

Cheap flight deals from Seattle to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Sioux City (SUX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 29, 2024.

Round-trip from

$312
From Seattle/Tacoma Intl to Sioux City Sioux Gateway

What is the cheapest day to fly round-trip from Seattle to Sioux City?

Flights from Seattle to Sioux City are found to be more expensive on Tuesday. This shouldn't discourage you from searching as you can still find great deals by being flexible with your options. Use our search form to find deals on tickets to Sioux City.

When is the cheapest time to fly from Seattle to Sioux City (SEA - SUX)?

When flying from Seattle to Sioux City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Cheap United Airlines flights from Seattle to Sioux City

Explore cheap flight options specifically provided by United Airlines for the route between Seattle and Sioux City. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
1 stop5h 54mUnited Airlines
Deal found 2/29$449
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$454
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$459
Fri 3/297:15 pmSEA - SUX
1 stop26h 17mUnited Airlines
Fri 4/57:24 amSUX - SEA
1 stop13h 21mUnited Airlines
Deal found 2/28$556
Fri 3/14:19 pmSEA - SUX
1 stop5h 23mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop6h 11mUnited Airlines
Deal found 2/28$566
Fri 3/297:15 pmSEA - SUX
1 stop26h 17mUnited Airlines
Fri 4/57:24 amSUX - SEA
2 stops28h 23mUnited Airlines
Deal found 2/28$620
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/191:04 pmSUX - SEA
3 stops25h 44mUnited Airlines
Deal found 2/29$625
Sat 3/25:10 amSEA - SUX
1 stop16h 32mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop19h 06mUnited Airlines
Deal found 2/28$630
Fri 3/153:10 pmSEA - SUX
2 stops30h 22mUnited Airlines
Sun 3/176:00 amSUX - SEA
1 stop5h 58mUnited Airlines
Deal found 2/29$631

Cheap Seattle to Sioux City flights in February & March 2024

Find cheap flight options from Seattle to Sioux City specifically for the months of February and March 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 3,314,962 searches. Prices were last updated on February 29, 2024.
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
1 stop5h 54mUnited Airlines
Deal found 2/29$449
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$454
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$459
Fri 3/297:15 pmSEA - SUX
1 stop26h 17mUnited Airlines
Fri 4/57:24 amSUX - SEA
1 stop13h 21mUnited Airlines
Deal found 2/28$556
Fri 3/14:19 pmSEA - SUX
1 stop5h 23mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop6h 11mUnited Airlines
Deal found 2/28$566
Fri 3/297:15 pmSEA - SUX
1 stop26h 17mUnited Airlines
Fri 4/57:24 amSUX - SEA
2 stops28h 23mUnited Airlines
Deal found 2/28$620
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/191:04 pmSUX - SEA
3 stops25h 44mUnited Airlines
Deal found 2/29$625
Thu 2/295:10 amSEA - SUX
1 stop16h 32mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop19h 06mUnited Airlines
Deal found 2/28$630
Fri 3/153:10 pmSEA - SUX
2 stops30h 22mUnited Airlines
Sun 3/176:00 amSUX - SEA
1 stop5h 58mUnited Airlines
Deal found 2/29$631

Seattle to Sioux City 2024 flight deals

Discover exclusive flight deals for travel between Seattle and Sioux City in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
1 stop5h 54mUnited Airlines
Deal found 2/29$449
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$454
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$459
Sat 10/265:30 pmSEA - SUX
1 stop28h 19mUnited Airlines
Tue 10/2912:50 pmSUX - SEA
1 stop11h 39mUnited Airlines
Deal found 2/28$503
Sat 10/268:40 amSEA - SUX
1 stop13h 09mUnited Airlines
Tue 10/2912:50 pmSUX - SEA
1 stop11h 39mUnited Airlines
Deal found 2/27$533
Sat 10/265:30 pmSEA - SUX
1 stop28h 19mUnited Airlines
Tue 10/2912:50 pmSUX - SEA
2 stops23h 09mUnited Airlines
Deal found 2/28$538
Fri 3/297:15 pmSEA - SUX
1 stop26h 17mUnited Airlines
Fri 4/57:24 amSUX - SEA
1 stop13h 21mUnited Airlines
Deal found 2/28$556
Fri 3/14:19 pmSEA - SUX
1 stop5h 23mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop6h 11mUnited Airlines
Deal found 2/28$566
Sat 10/265:20 amSEA - SUX
1 stop16h 29mUnited Airlines
Tue 10/2912:50 pmSUX - SEA
2 stops26h 25mUnited Airlines
Deal found 2/27$568

Seattle to Sioux City flights leaving soon

Find last-minute flight options from Seattle to Sioux City for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
1 stop5h 54mUnited Airlines
Deal found 2/29$449
Tue 3/124:20 pmSEA - SUX
1 stop5h 12mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$454
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/196:00 amSUX - SEA
2 stops9h 49mUnited Airlines
Deal found 2/29$459
Fri 3/14:19 pmSEA - SUX
1 stop5h 23mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop6h 11mUnited Airlines
Deal found 2/28$566
Tue 3/128:13 amSEA - SUX
2 stops13h 19mUnited Airlines
Tue 3/191:04 pmSUX - SEA
3 stops25h 44mUnited Airlines
Deal found 2/29$625
Sat 3/25:10 amSEA - SUX
1 stop16h 32mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop19h 06mUnited Airlines
Deal found 2/28$630
Fri 3/19:00 amSEA - SUX
2 stops12h 42mUnited Airlines
Sun 3/35:50 amSUX - SEA
1 stop19h 06mUnited Airlines
Deal found 2/28$635
Fri 3/12:40 pmSEA - SUX
2 stops31h 02mUnited Airlines
Sun 3/35:50 amSUX - SEA
2 stops33h 57mUnited Airlines
Deal found 2/28$801
Fri 3/16:30 amSEA - SUX
3 stops15h 12mUnited Airlines
Sun 3/31:05 pmSUX - SEA
2 stops11h 51mUnited Airlines
Deal found 2/28$2,304

Find flights from Seattle to Sioux City within your budget

Customize your flight search to find flights from Seattle 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, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.

Fly from

Any airport

Fly to

Any airport

Budget

$449 - $793

Route

Depart

Return

Price

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Tue 3/12

1 stop5h 12m

Sioux City Sioux Gateway

Tue 3/19

1 stop5h 54m

$449

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Tue 3/12

1 stop5h 12m

Sioux City Sioux Gateway

Tue 3/19

2 stops9h 49m

$454

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Tue 3/12

2 stops13h 19m

Sioux City Sioux Gateway

Tue 3/19

2 stops9h 49m

$459

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Fri 3/29

1 stop26h 17m

Sioux City Sioux Gateway

Fri 4/5

1 stop13h 21m

$556

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Fri 3/29

1 stop26h 17m

Sioux City Sioux Gateway

Fri 4/5

2 stops28h 23m

$620

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Tue 3/12

2 stops13h 19m

Sioux City Sioux Gateway

Tue 3/19

3 stops25h 44m

$625

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Fri 3/15

2 stops30h 22m

Sioux City Sioux Gateway

Sun 3/17

1 stop5h 58m

$631

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Fri 3/15

1 stop26h 17m

Sioux City Sioux Gateway

Sun 3/17

1 stop5h 58m

$656

Seattle/Tacoma IntlSioux City Sioux Gateway

SEA - SUX

SEASUX

Seattle/Tacoma Intl

Fri 3/15

2 stops30h 22m

Sioux City Sioux Gateway

Sun 3/17

2 stops26h 45m

$793

Flights are sorted by cheapest first

Deals found on 2/29

When is the cheapest time to fly from Seattle to Sioux City?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Sioux City. Price data was last updated on February 25, 2024.
Morning
Noon
Afternoon
Evening
All times are departure.
Travelers seeking maximum savings on their Seattle to Sioux City flight should consider departing on Thursday afternoons when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Search Deals

Average price of flights to Sioux City by month

Plan your trip from Seattle to Sioux City by taking into account the cheapest months to travel. The average price of a one-way flight from Seattle to Sioux City is currently $0 while a round-trip flight costs $583. Price data was last updated on February 25, 2024.

Currently, February is the cheapest month in which you can book a flight from Seattle to Sioux City (average of $312). Flying from Seattle to Sioux City in June is currently the most expensive (average of $550). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

January

$352

February

$312

March

$356

April

$398

May

$426

June

$550

July

$533

August

$412

September

$352

October

$454

November

$375

December

$416

Temperature and rainfall in Sioux City by month

Plan your trip to Sioux City by taking into account the average temperature and rainfall totals by month.

SUX

Temperature

21.2 - 75.2 °F

Reviews of airlines servicing Sioux City

Get insights into the airlines that provide service to Sioux City. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sioux City. Reviews last updated February 29, 2024.
7.4
Good
11,794 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.2

Food

6.7

Reviews

1 / 10

There were a lot of delays. Not sure if they could be helped, but it made me super nervous about catching my already tight connection. The connection was held for me, but I had to really hurry to make it.

7.4
Good
11,794 reviews
7.4
Good
11,794 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.2

Food

6.7

Reviews

1 / 10

There were a lot of delays. Not sure if they could be helped, but it made me super nervous about catching my already tight connection. The connection was held for me, but I had to really hurry to make it.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Sioux City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find flights from Seattle to Sioux City for under $500 on Cheapflights?

Yes, there are multiple flights from Seattle to Sioux City for under $500. The cheapest flight booked recently is on United Airlines for just $449, but on average you can expect to pay $582.

Are there last-minute flights available from Seattle to Sioux City for under $500?

There are currently 9+ open flights from Seattle to Sioux City within the next 7 days for less than $500.

What is the cheapest airline to fly from Seattle to Sioux City round-trip?

United Airlines, at $449, was found to be the cheapest airline from Seattle to Sioux City..

What does SEA to SUX mean?

SEA and SUX are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SEA to SUX refers to a flight route from Seattle/Tacoma Intl Airport to Sioux City Sioux Gateway Airport.

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Seattle to Sioux City

Discover the top airline that operate flights from Seattle to Sioux City. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 3,314,962 searches. Data last updated February 29, 2024.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$297Average$563FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Search flights from Seattle to Sioux City by cabin class

Find flights from Seattle to Sioux City, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Fly with Cheapflights

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How does Cheapflights help users find flights from Seattle to Sioux City?

Cheapflights makes it easy to find Seattle to Sioux City flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Sioux City?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Sioux City.

Can Cheapflights find flights from Seattle to Sioux City with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Sioux City flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from Seattle to Sioux City become cheaper?

Yes! Start tracking prices for Seattle to Sioux City flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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