CA $610 Cheap Flights from Buffalo (BUF) to Sioux City (SUX)

View CA $610 flight on Wed, Jun 24, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Sioux City, IA (SUX-Sioux Gateway)

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Cheap flights from Buffalo (BUF) to Sioux City (SUX)

Prices were available within the past 7 days and start at CA $610 for one-way flights and CA $818 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Tue, Jun 23 - Tue, Jun 30
BUF
Buffalo
SUX
Sioux City
CA $818 Roundtrip, found 5 days ago
CA $818
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 23 from Buffalo to Sioux City, returning Tue, Jun 30, priced at CA $818 found 5 days ago
United
Tue, Jun 23 - Sat, Jul 4
BUF
Buffalo
SUX
Sioux City
CA $859 Roundtrip, found 5 days ago
CA $859
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 23 from Buffalo to Sioux City, returning Sat, Jul 4, priced at CA $859 found 5 days ago
United
Tue, Jun 23 - Sun, Jun 28
BUF
Buffalo
SUX
Sioux City
CA $886 Roundtrip, found 5 days ago
CA $886
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 23 from Buffalo to Sioux City, returning Sun, Jun 28, priced at CA $886 found 5 days ago
United
Wed, Jun 24 - Tue, Jun 30
BUF
Buffalo
SUX
Sioux City
CA $897 Roundtrip, found 5 days ago
CA $897
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jun 24 from Buffalo to Sioux City, returning Tue, Jun 30, priced at CA $897 found 5 days ago
United
Wed, Jun 24 - Mon, Jun 29
BUF
Buffalo
SUX
Sioux City
CA $917 Roundtrip, found 5 days ago
CA $917
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jun 24 from Buffalo to Sioux City, returning Mon, Jun 29, priced at CA $917 found 5 days ago
United
Wed, Jun 24 - Sun, Jun 28
BUF
Buffalo
SUX
Sioux City
CA $943 Roundtrip, found 5 days ago
CA $943
Roundtrip
found 5 days ago
Select United flight, departing Wed, Jun 24 from Buffalo to Sioux City, returning Sun, Jun 28, priced at CA $943 found 5 days ago
United
Tue, Jun 23 - Sat, Jun 27
BUF
Buffalo
SUX
Sioux City
CA $957 Roundtrip, found 5 days ago
CA $957
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 23 from Buffalo to Sioux City, returning Sat, Jun 27, priced at CA $957 found 5 days ago
United
Tue, Jun 23 - Fri, Jul 3
BUF
Buffalo
SUX
Sioux City
CA $957 Roundtrip, found 5 days ago
CA $957
Roundtrip
found 5 days ago
Select United flight, departing Tue, Jun 23 from Buffalo to Sioux City, returning Fri, Jul 3, priced at CA $957 found 5 days ago
United
Sat, Jun 27 - Tue, Jun 30
BUF
Buffalo
SUX
Sioux City
CA $971 Roundtrip, found 5 days ago
CA $971
Roundtrip
found 5 days ago
Select United flight, departing Sat, Jun 27 from Buffalo to Sioux City, returning Tue, Jun 30, priced at CA $971 found 5 days ago
United
Thu, Jun 25 - Tue, Jun 30
BUF
Buffalo
SUX
Sioux City
CA $978 Roundtrip, found 5 days ago
CA $978
Roundtrip
found 5 days ago
Select United flight, departing Thu, Jun 25 from Buffalo to Sioux City, returning Tue, Jun 30, priced at CA $978 found 5 days ago

Frequently asked questions

How do I find cheap flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
There are approximately 8 connecting flights per day from Buffalo Niagara Intl. (BUF) to Sioux Gateway (SUX). Some common connection points include O'Hare Intl. (ORD), Liberty Intl. (EWR), and Washington Dulles Intl. (IAD).
What is the earliest flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
The earliest flight from Buffalo Niagara Intl. (BUF) to Sioux Gateway (SUX) typically departs at approximately 6:00 AM local time. This service is operated by Delta and United. This is a seasonal service active in November. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
You'll typically find the most flights from Buffalo Niagara Intl. (BUF) to Sioux Gateway (SUX) on a Wednesday, with around 12 flights available. This gives you a good selection for your travel plans. Major airlines on this route include United Airlines and Delta Air Lines. Compared to other days, Wednesdays offer notably more flight options.
What are the most popular departure times for flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
The most popular departure times for flights from Buffalo Niagara Intl. (BUF) to Sioux Gateway (SUX) are between 12pm and 3pm. About 46% of passengers prefer this time. Many major carriers, including United Airlines and Delta Air Lines, offer flights during this window. This timing works well for many travelers as it allows for a morning start and an afternoon arrival.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
Flights from BUF to SUX with one stop typically take around 4 hours 50 minutes, covering approximately 896 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
Select the "Business class" and "First class" filters when looking for BUF to SUX flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sioux City from Buffalo Niagara Intl. (BUF)?
From Buffalo Niagara Intl. (BUF), you can fly directly into Sioux Gateway (SUX) to reach Sioux City. Some flights may connect through major hubs like Washington Dulles Intl. (IAD), O'Hare Intl. (ORD), Liberty Intl. (EWR) before reaching Sioux City. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sioux City, IA (SUX-Sioux Gateway) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Buffalo Niagara Intl.
Destination airport
Sioux Gateway
Roundtrip price
CA $818
Distance
1432 km

Book with confidence

Buffalo to Sioux City Flights

The easy way to book your flights from Buffalo to Sioux City 

With Expedia, it’s simple to find and book flights to Sioux City from Buffalo whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Sioux Gateway, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Buffalo to Sioux City today, tomorrow, or this week.  

 

Save dollars with cheap flights from Buffalo Niagara Intl., BUF to Sioux Gateway, SUX 

Sort your search results by price to find great deals on your flight from Buffalo to Sioux City—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sioux City from Buffalo currently is just CA $818 rising to CA $978.  

Here are more money-saving tips: 

  • Fly in June when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Sioux City  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Sioux City from Buffalo 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Sioux City with Expedia today.

Buffalo to Sioux City Flights

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