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$296+ Cheap flights from Sioux City (SUX) to Dallas

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — DFW
May 3 — May 101
Sun 5/3
Sun 5/10
1 adult, Economy
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Cheap flight deals from Sioux City to Dallas

Cheapest flights from Sioux City to Dallas
Explore the most affordable flight options available from Sioux City to Dallas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 3, 2026.

This United Airlines deal was found by Cheapflights users on 3/31. 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 6/126:30 pm
SUX
-
DFW
1 stop5h 29m
United Airlines
Sun 6/146:45 pm
DFW
-
SUX
1 stop4h 59m
United Airlines
Deal found 3/31$314
This United Airlines deal was found by Cheapflights users on 3/31. 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.
Sun 6/146:30 pm
SUX
-
DFW
1 stop5h 29m
United Airlines
Wed 6/175:45 am
DFW
-
SUX
1 stop5h 12m
United Airlines
Deal found 3/31$439
This United Airlines deal was found by Cheapflights users on 4/1. 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 4/212:55 pm
SUX
-
DFW
1 stop5h 35m
United Airlines
Mon 4/65:05 pm
DFW
-
SUX
1 stop6h 39m
United Airlines
Deal found 4/1$514
This United Airlines deal was found by Cheapflights users on 3/30. 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.
Tue 12/89:03 am
SUX
-
DFW
1 stop28h 30m
United Airlines
Sat 12/121:45 pm
DFW
-
SUX
1 stop4h 26m
United Airlines
Deal found 3/30$517
This United Airlines deal was found by Cheapflights users on 4/1. 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.
Sun 4/266:00 am
SUX
-
DFW
1 stop6h 41m
United Airlines
Fri 5/16:01 pm
DFW
-
SUX
1 stop16h 40m
United Airlines
Deal found 4/1$525
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/1712:55 pm
SUX
-
DFW
1 stop5h 30m
United Airlines
Sun 4/196:02 pm
DFW
-
SUX
1 stop5h 42m
United Airlines
Deal found 3/31$569

Find flight deals from Sioux City to Dallas

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Dallas (A78). 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 April 3, 2026.

Round-trip from

$314
(United Airlines)

One-way from

$296
(United Airlines)
From Sioux City Sioux Gateway to Dallas
Search Deals
One-way flight from Sioux City Sioux Gateway to Dallas
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Dallas 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 April 3, 2026.
Use the filters below to find and compare flights from Sioux City to Dallas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Sun 6/14

6:30 pm-11:59 pm

1 stop5h 29m

Dallas/Fort Worth

Wed 6/17

5:45 am-10:57 am

1 stop5h 12m

$439

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Sun 4/26

6:00 am-12:41 pm

1 stop6h 41m

Dallas/Fort Worth

Fri 5/1

6:01 pm-10:41 am

1 stop16h 40m

$525

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Fri 4/17

12:55 pm-6:25 pm

1 stop5h 30m

Dallas/Fort Worth

Sun 4/19

6:02 pm-11:44 pm

1 stop5h 42m

$569
Cheapest one-way
Quickest one-way

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Sun 5/17

6:00 am-10:52 am

1 stop4h 52m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/31

Sorted by cheapest first

Best time to book a flight from Sioux City to Dallas

Have a flexible travel schedule? Discover the best time to fly to Dallas 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 Dallas

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

Currently, February is the cheapest month in which you can book a flight from Sioux City to Dallas (average of $137). Flying from Sioux City to Dallas in June is currently the most expensive (average of $284). 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 Dallas

Get insights into the airlines that provide service to Dallas. 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 Dallas. Reviews last updated April 3, 2026.
See what other customers who have flown with United Airlines from Sioux City to Dallas have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,538 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

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
9,538 reviews
United Airlines
7.4
Good
9,538 reviews

Entertainment

7.1

Crew

8.1

Boarding

7.7

Food

6.6

Overall

7.4

Comfort

7.3

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 Sioux City to Dallas. 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 Dallas?

    If you book a flight to Dallas 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. There are 0 flights from Sioux Gateway to Dallas per day from 1 airline.

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

    There are many flights that can get you from Sioux City to Dallas in 5h 29m. Fly via United Airlines to get the fastest option. The distance between Sioux City and Dallas is about 657 mi.

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

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

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

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

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

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

    Currently, February is the cheapest month in which you can book a flight from Sioux City to Dallas (average of $137). Flying from Sioux City to Dallas in June is currently the most expensive (average of $284). 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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Alternative routes for Sioux City to Dallas

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Top airline flying from Sioux City to Dallas

Discover the top airline that operate flights from Sioux City to Dallas. 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 April 3, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$269Average$338FlexibilityNo cancel feeOn-time69%

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