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Sioux City

$301+ 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 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — SUX
Aug 18 — Aug 251
Mon 8/18
Mon 8/25
1 adult, Economy
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Cheap 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 August 13, 2025.

Round-trip from

$623
(United Airlines)

One-way from

$301
(United Airlines)
From Baltimore/Washington to Sioux City Sioux Gateway
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One-way flight from Baltimore/Washington to Sioux City Sioux Gateway
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Find 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 August 13, 2025.

This United Airlines deal was found by Cheapflights users on 8/11. 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 8/2510:10 amBWI - SUX
1 stop9h 03mUnited Airlines
Thu 8/287:49 amSUX - BWI
1 stop4h 59mUnited Airlines
Deal found 8/11$623
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/265:20 pmBWI - SUX
1 stop6h 40mUnited Airlines
Sun 9/287:50 amSUX - BWI
1 stop5h 18mUnited Airlines
Deal found 8/11$626

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 August 13, 2025.
Use the filters below to find and compare flights from Baltimore to Sioux City that are best for you.

Fly from

Baltimore

Fly to

Sioux City

Route

Depart

Return

Price

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Mon 8/25

10:10 am-6:13 pm

1 stop9h 03m

Sioux City Sioux Gateway

Thu 8/28

7:49 am-1:48 pm

1 stop4h 59m

$623

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Fri 9/26

5:20 pm-11:00 pm

1 stop6h 40m

Sioux City Sioux Gateway

Sun 9/28

7:50 am-2:08 pm

1 stop5h 18m

$626

BaltimoreSioux City

BWI - SUX

BWISUX

Baltimore/Washington

Thu 12/4

5:18 pm-10:59 pm

1 stop6h 41m

$301

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/11

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 $318). Flying from Baltimore to Sioux City in March is currently the most expensive (average of $446). 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 August 13, 2025.
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
8,920 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,920 reviews
United Airlines
7.4
Good
8,920 reviews

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

Comfort

7.3

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • 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 $623 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 $318). Flying from Baltimore to Sioux City in March is currently the most expensive (average of $446). 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

Traveling to a place near Sioux City?

Book flights to Sioux City if you plan to visit one of these locations
Norfolk

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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 August 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$367Average$429FlexibilityNo cancel feeOn-time69%

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