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$338+ Cheap flights from Sioux City to Buffalo (SUX - BUF)

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 10/28. Fares are subject to change and may not be available on all flights or dates of travel.
SUX — BUF
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Sioux City to Buffalo

Discover tips and strategies to find the most affordable flight options for your journey from Sioux City (SUX) to Buffalo (BUF). 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 29, 2025.

Round-trip from

$338
(United Airlines)
From Sioux City Sioux Gateway to Buffalo
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Find flight deals from Sioux City to Buffalo

Cheapest flights from Sioux City to Buffalo
Explore the most affordable flight options available from Sioux City to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

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.
Tue 10/287:45 amSUX - BUF
1 stop4h 32mUnited Airlines
Sat 11/110:50 amBUF - SUX
2 stops8h 18mUnited Airlines
Deal found 7/27$338

Cheapflights Fare Finder

 
Customize your flight search to find flights from Sioux City to Buffalo 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 29, 2025.
Use the filters below to find and compare flights from Sioux City to Buffalo that are best for you.

Fly from

Sioux City

Fly to

Buffalo

Route

Depart

Return

Price

Sioux CityBuffalo

SUX - BUF

SUXBUF

Sioux City Sioux Gateway

Tue 10/28

7:45 am-1:17 pm

1 stop4h 32m

Buffalo

Sat 11/1

10:50 am-6:08 pm

2 stops8h 18m

$338

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Sioux City to Buffalo

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

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

Currently, January is the cheapest month in which you can book a flight from Sioux City to Buffalo (average of $256). Flying from Sioux City to Buffalo in December is currently the most expensive (average of $337). 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 Buffalo

Get insights into the airlines that provide service to Buffalo. 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 Buffalo. Reviews last updated July 29, 2025.
See what other customers who have flown with United Airlines from Sioux City to Buffalo 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
8,899 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

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
8,899 reviews
United Airlines
7.4
Good
8,899 reviews

Comfort

7.3

Crew

8.1

Boarding

7.7

Entertainment

7.1

Food

6.6

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 Sioux City to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Sioux City to Buffalo (average of $256). Flying from Sioux City to Buffalo in December is currently the most expensive (average of $337). 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 Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Orchard Park
Batavia
Williamsville
Eden
Amherst
West Seneca

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