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$674+ Cheap flights from Sioux City (SUX) to Spain

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — MAD
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Sioux City to Spain

Cheapest flights from Sioux City to Spain
Explore the most affordable flight options available from Sioux City to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This United Airlines deal was found by Cheapflights users on 2/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:00 am
SUX
-
MAD
2 stops20h 15m
United Airlines
Sun 3/111:15 am
MAD
-
SUX
2 stops19h 27m
United Airlines
Deal found 2/8$674
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/86:42 pm
SUX
-
MAD
2 stops55h 08m
United Airlines
Thu 8/612:45 pm
MAD
-
SUX
2 stops28h 54m
United Airlines
Deal found 2/9$759

Find flight deals from Sioux City to Spain

Keep the following information in mind while searching for Sioux City to Spain flight deals. Data was last updated February 11, 2026.

Round-trip from

$674
(United Airlines)
From Sioux City Sioux Gateway to Spain
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Spain 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 2,558,603 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Sioux City to Spain that are best for you.

Fly from

Sioux City

Fly to

Spain

Route

Depart

Return

Price

Sioux CityMadrid

SUX - MAD

SUXMAD

Sioux City Sioux Gateway

Wed 2/25

6:00 am-9:15 am

2 stops20h 15m

Madrid Barajas

Sun 3/1

11:15 am-11:42 pm

2 stops19h 27m

$674

Sioux CityMadrid

SUX - MAD

SUXMAD

Sioux City Sioux Gateway

Fri 5/8

6:42 pm-8:50 am

2 stops55h 08m

Madrid Barajas

Thu 8/6

12:45 pm-10:39 am

2 stops28h 54m

$759

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/8

Best time to book a flight from Sioux City to Spain

Have a flexible travel schedule? Discover the best time to fly to Spain from Sioux City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Sioux City to Spain

What is the cheapest month to book a flight from Sioux City to Spain?

Currently, February is the cheapest month in which you can book a flight from Sioux City to Spain (average of $465). Flying from Sioux City to Spain in June is currently the most expensive (average of $1,109). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Sioux City to Spain?

    If you book a flight to Spain from Sioux City, you will be flying from Sioux Gateway, which is the city’s only airport. Sioux City Sioux Gateway (SUX) is located 7.0 mi from the center of Sioux City.

  • How long is the flight from Sioux City to Spain?

    United Airlines can get you from Sioux City to Spain in just under 20h 15m. Your travel time can differ by up to . The distance between Sioux City and Spain is about 4542 mi.

  • Can I find deals for flights from Sioux City to Spain that include hotel bookings?

    Yes. In addition to deals on Sioux City to Spain flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Sioux City to Spain?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sioux City to Spain.

  • Can I find deals for business class flights from Sioux City to Spain?

    Yes. Cheapflights offers flight deals from Sioux City to Spain by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Sioux City to Spain?

    Currently, February is the cheapest month in which you can book a flight from Sioux City to Spain (average of $465). Flying from Sioux City to Spain in June is currently the most expensive (average of $1,109). 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.

See more FAQs

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