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Sioux City

$344+ Cheap flights from Raleigh to Sioux City (RDU - SUX)

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 2/14. Fares are subject to change and may not be available on all flights or dates of travel.
RDU — SUX
Feb 10 — Feb 171
Tue 2/10
Tue 2/17
1 adult, Economy
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Cheap flight deals from Raleigh to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Raleigh (RDU) 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 January 11, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$339
(United Airlines)
Provider with most accurate pricing for Raleigh-Durham-Sioux City Sioux Gateway flight deals.
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Provider most trusted by Cheapflights users for Raleigh-Durham-Sioux City Sioux Gateway flights.
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From Raleigh-Durham to Sioux City Sioux Gateway
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Find flight deals from Raleigh to Sioux City

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

This United Airlines deal was found by Cheapflights users on 1/10. 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.
Sat 2/141:26 pmRDU - SUX
1 stop5h 15mUnited Airlines
Wed 2/181:00 pmSUX - RDU
1 stop6h 56mUnited Airlines
Deal found 1/10$344
This United Airlines deal was found by Cheapflights users on 1/9. 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.
Thu 5/1410:34 amRDU - SUX
2 stops7h 58mUnited Airlines
Mon 5/186:54 pmSUX - RDU
2 stops13h 04mUnited Airlines
Deal found 1/9$404

Cheapflights Fare Finder

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

Fly from

Raleigh

Fly to

Sioux City

Route

Depart

Return

Price

RaleighSioux City

RDU - SUX

RDUSUX

Raleigh-Durham

Sat 2/14

1:26 pm-5:41 pm

1 stop5h 15m

Sioux City Sioux Gateway

Wed 2/18

1:00 pm-8:56 pm

1 stop6h 56m

$344

RaleighSioux City

RDU - SUX

RDUSUX

Raleigh-Durham

Thu 5/14

10:34 am-5:32 pm

2 stops7h 58m

Sioux City Sioux Gateway

Mon 5/18

6:54 pm-8:58 am

2 stops13h 04m

$404

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/9

Compare providers for flights from Raleigh to Sioux City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Raleigh to Sioux City in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Raleigh-Sioux City flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Raleigh-Sioux City flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Raleigh-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Raleigh-Sioux City flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Raleigh-Sioux City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Raleigh to Sioux City

Have a flexible travel schedule? Discover the best time to fly to Sioux City from Raleigh 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 Raleigh to Sioux City

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

Currently, November is the cheapest month in which you can book a flight from Raleigh to Sioux City (average of $179). Flying from Raleigh to Sioux City in April is currently the most expensive (average of $279). 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.

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 January 11, 2026.
Read reviews from past customers who have flown United Airlines from Raleigh to Sioux City. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,144 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,144 reviews
United Airlines
7.4
Good
9,144 reviews

Boarding

7.7

Comfort

7.3

Food

6.6

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

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

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

    United Airlines can get you from Raleigh to Sioux City in just under 5h 15m. Your travel time can differ by up to . Airlines will cover a distance of 1042 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Raleigh to Sioux City 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 Raleigh to Sioux City?

    Currently, November is the cheapest month in which you can book a flight from Raleigh to Sioux City (average of $179). Flying from Raleigh to Sioux City in April is currently the most expensive (average of $279). 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.

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Top airline flying from Raleigh to Sioux City

Discover the top airline that operate flights from Raleigh 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 2,558,603 searches. Data last updated January 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$364Average$453FlexibilityNo cancel feeOn-time69%

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