HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dallas

$302+ Cheap flights from Sioux City (SUX) to Dallas

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 8/14. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — DFW
Aug 27 — Sep 31
Thu 8/27
Thu 9/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Sioux City to Dallas with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 July 28, 2026.

This United Airlines deal was found by Cheapflights users on 7/24. 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 8/146:43 pm
SUX
-
DFW
1 stop5h 16m
United Airlines
Mon 8/175:45 am
DFW
-
SUX
1 stop5h 10m
United Airlines
Deal found 7/24$302
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Mon 9/146:35 pm
SUX
-
DFW
1 stop5h 24m
United Airlines
Fri 9/186:47 pm
DFW
-
SUX
1 stop4h 56m
United Airlines
Deal found 7/25$370
This United Airlines deal was found by Cheapflights users on 7/27. 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 9/511:30 am
SUX
-
DFW
1 stop5h 19m
United Airlines
Wed 9/911:56 am
DFW
-
SUX
1 stop5h 56m
United Airlines
Deal found 7/27$380
This United Airlines deal was found by Cheapflights users on 7/24. 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 8/146:43 pm
SUX
-
DFW
1 stop5h 16m
United Airlines
Sun 8/165:45 am
DFW
-
SUX
1 stop5h 10m
United Airlines
Deal found 7/24$384
This United Airlines deal was found by Cheapflights users on 7/26. 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 7/3111:32 am
SUX
-
DFW
1 stop7h 16m
United Airlines
Mon 8/34:50 pm
DFW
-
SUX
1 stop6h 51m
United Airlines
Deal found 7/26$409

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 July 28, 2026.

Round-trip from

$302
(United Airlines)
From Sioux City Sioux Gateway to Dallas
Search Deals

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 July 28, 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

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Fri 8/14

6:43 pm-11:59 pm

1 stop5h 16m

Dallas/Fort Worth

Mon 8/17

5:45 am-10:55 am

1 stop5h 10m

$302

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Sat 9/5

11:30 am-4:49 pm

1 stop5h 19m

Dallas/Fort Worth

Wed 9/9

11:56 am-5:52 pm

1 stop5h 56m

$380

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Fri 8/14

8:10 am-3:15 pm

1 stop7h 05m

Dallas/Fort Worth

Sun 8/16

5:45 am-10:55 am

1 stop5h 10m

$414
Quickest round-trip

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Mon 9/14

6:35 pm-11:59 pm

1 stop5h 24m

Dallas/Fort Worth

Fri 9/18

6:47 pm-11:43 pm

1 stop4h 56m

$536
Cheapest one-way
Quickest one-way

Sioux CityDallas

SUX - DFW

SUXDFW

Sioux City Sioux Gateway

Sun 8/23

6:43 pm-7:57 pm

2 stops25h 14m

$415

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/23

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

No data available for this route at this time. Please check back soon.

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 July 28, 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
10,049 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Isaac,May 2024

SHV - IAH

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport
United Airlines
7.4
Good
10,049 reviews
United Airlines
7.4
Good
10,049 reviews

Entertainment

7.1

Food

6.6

Boarding

7.7

Crew

8.1

Overall

7.4

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Isaac,May 2024

SHV - IAH

Flight from shv was great. My connecting flight was canceled though. Had to stay overnight in airport

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 16m. Fly via United Airlines to get the fastest option. The distance between Sioux City and Dallas is about 657 mi.

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

    According to our current data, United Airlines ($266), offers the cheapest pricing from Sioux City to Dallas.

  • 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.

See more FAQs

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 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 July 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$266Average$338FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.