HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sioux City

$376+ Cheap flights from Baltimore to Sioux City (BWI - SUX)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SUX
Apr 5 — Apr 121
Sun 4/5
Sun 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Sioux City 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 Baltimore to Sioux City

Cheapest flights from Baltimore to Sioux City
Explore the most affordable flight options available from Baltimore to Sioux City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 6, 2026.

This United Airlines deal was found by Cheapflights users on 3/1. 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.
Wed 4/296:55 pm
BWI
-
SUX
1 stop24h 11m
United Airlines
Sat 5/212:55 pm
SUX
-
BWI
1 stop7h 07m
United Airlines
Deal found 3/1$453
This United Airlines deal was found by Cheapflights users on 3/4. 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 3/204:03 pm
BWI
-
SUX
1 stop8h 38m
United Airlines
Tue 3/2412:53 pm
SUX
-
BWI
1 stop7h 49m
United Airlines
Deal found 3/4$466
This United Airlines deal was found by Cheapflights users on 3/5. 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 6/210:44 am
BWI
-
SUX
1 stop8h 10m
United Airlines
Sat 6/611:32 am
SUX
-
BWI
2 stops12h 01m
United Airlines
Deal found 3/5$518
This United Airlines deal was found by Cheapflights users on 3/3. 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 4/104:18 pm
BWI
-
SUX
1 stop8h 26m
United Airlines
Mon 4/136:32 pm
SUX
-
BWI
1 stop27h 52m
United Airlines
Deal found 3/3$593

Find flight deals from Baltimore to Sioux City

Discover tips and strategies to find the most affordable flight options for your journey from Baltimore (BWI) 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 March 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$453
(United Airlines)

One-way from

$376
(United Airlines)
Provider with most accurate pricing for Baltimore/Washington-Sioux City Sioux Gateway flight deals.
Search Deals
Provider most trusted by Cheapflights users for Baltimore/Washington-Sioux City Sioux Gateway flights.
Search Deals
From Baltimore/Washington to Sioux City Sioux Gateway
Search Deals
One-way flight from Baltimore/Washington to Sioux City Sioux Gateway
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore 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 March 6, 2026.
Use the filters below to find and compare flights from Baltimore to Sioux City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Wed 4/29

6:55 pm-6:06 pm

1 stop24h 11m

Sioux City Sioux Gateway

Sat 5/2

12:55 pm-9:02 pm

1 stop7h 07m

$453
Quickest round-trip

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 3/20

4:03 pm-11:41 pm

1 stop8h 38m

Sioux City Sioux Gateway

Tue 3/24

12:53 pm-9:42 pm

1 stop7h 49m

$466

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Tue 6/2

10:44 am-5:54 pm

1 stop8h 10m

Sioux City Sioux Gateway

Sat 6/6

11:32 am-12:33 am

2 stops12h 01m

$518

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 4/10

4:18 pm-11:44 pm

1 stop8h 26m

Sioux City Sioux Gateway

Mon 4/13

6:32 pm-4:24 pm

2 stops20h 52m

$599
Cheapest one-way

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Wed 4/15

8:00 am-10:46 am

1 stop27h 46m

$376
Quickest one-way

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 5/15

6:15 am-6:06 pm

1 stop12h 51m

$407

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 3/27

6:05 am-11:41 pm

2 stops18h 36m

$1,294

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/2

Sorted by cheapest first

Compare providers for flights from Baltimore 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 Baltimore to Sioux City in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 Baltimore-Sioux City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Baltimore-Sioux City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Baltimore-Sioux City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Baltimore-Sioux City flights, Cheapflights users trust FlightHub the most. FlightHub 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 Baltimore-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 Baltimore to Sioux City

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

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

Currently, October is the cheapest month in which you can book a flight from Baltimore to Sioux City (average of $126). Flying from Baltimore to Sioux City in April is currently the most expensive (average of $269). 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 March 6, 2026.
See what other customers who have flown with United Airlines from Baltimore to Sioux City 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
9,403 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

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
9,403 reviews
United Airlines
7.4
Good
9,403 reviews

Boarding

7.7

Food

6.6

Entertainment

7.1

Comfort

7.3

Overall

7.4

Crew

8.1

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 Baltimore 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 Baltimore to Sioux City?

    For as low as $453, United Airlines can have you in Sioux City from Baltimore in 24h 11m. The distance between Baltimore and Sioux City is about 1052 mi.

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

    Our cheapest airline available from Baltimore to Sioux City is United Airlines. Our recent data shows that you can find tickets from as low as $263 on this airline.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Baltimore to Sioux City (average of $126). Flying from Baltimore to Sioux City in April is currently the most expensive (average of $269). 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

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 Baltimore to Sioux City

Discover the top airline that operate flights from Baltimore 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 March 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$263Average$533FlexibilityNo 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.