$146 Cheap Flights from Green Bay (GRB) to Buffalo (BUF)

View $146 flight on Wed, Apr 22, 2026Opens in a new window

Popular airlines from Green Bay Austin Straubel Intl. Airport (GRB) to Buffalo Niagara Intl. Airport (BUF)

Cheap Flights from Green Bay to Buffalo (GRB-BUF)

Prices were available within the past 7 days and start at $146 for one-way flights and $289 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, May 23 - Sun, May 24
GRB
Green Bay
BUF
Buffalo
$289 Roundtrip, found 1 day ago
$289
Roundtrip
found 1 day ago
Select American Airlines flight, departing Sat, May 23 from Green Bay to Buffalo, returning Sun, May 24, priced at $289 found 1 day ago
United
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$291 Roundtrip, found 10 hours ago
$291
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $291 found 10 hours ago
United
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$296 Roundtrip, found 10 hours ago
$296
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $296 found 10 hours ago
United
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$305 Roundtrip, found 10 hours ago
$305
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $305 found 10 hours ago
United
Sat, Aug 8 - Wed, Aug 12
GRB
Green Bay
BUF
Buffalo
$309 Roundtrip, found 14 hours ago
$309
Roundtrip
found 14 hours ago
Select United flight, departing Sat, Aug 8 from Green Bay to Buffalo, returning Wed, Aug 12, priced at $309 found 14 hours ago
United
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$312 Roundtrip, found 10 hours ago
$312
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $312 found 10 hours ago
American Airlines
Sat, Jun 27 - Fri, Jul 3
GRB
Green Bay
BUF
Buffalo
$314 Roundtrip, found 3 days ago
$314
Roundtrip
found 3 days ago
Select American Airlines flight, departing Sat, Jun 27 from Green Bay to Buffalo, returning Fri, Jul 3, priced at $314 found 3 days ago
American Airlines
Wed, Nov 11 - Sat, Nov 14
GRB
Green Bay
BUF
Buffalo
$319 Roundtrip, found 4 days ago
$319
Roundtrip
found 4 days ago
Select American Airlines flight, departing Wed, Nov 11 from Green Bay to Buffalo, returning Sat, Nov 14, priced at $319 found 4 days ago
United
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$321 Roundtrip, found 10 hours ago
$321
Roundtrip
found 10 hours ago
Select United flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $321 found 10 hours ago
Delta
Wed, Apr 22 - Sat, Apr 25
GRB
Green Bay
BUF
Buffalo
$331 Roundtrip, found 10 hours ago
$331
Roundtrip
found 10 hours ago
Select Delta flight, departing Wed, Apr 22 from Green Bay to Buffalo, returning Sat, Apr 25, priced at $331 found 10 hours ago

Find the cheapest month to fly from Green Bay (GRB) to Buffalo (BUF)

May is typically the cheapest month to fly

From $198 - $568 per traveler.

Frequently asked questions

How much does a flight from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $146 and cheap return flights from $289 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. One-way flights generally range between $233 and $836, and roundtrip flights usually range from $291 to $1239. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The cheapest month to fly from GRB to BUF is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter GRB to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.), 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 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
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.
What is the earliest flight from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Austin Straubel International Airport (GRB) to Buffalo Niagara International Airport (BUF) typically departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in March, allowing you to kick off your trip early. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) are in the morning, from 6am to 9am. About 40% of passengers prefer this time window. Many major carriers, including American Airlines, United Airlines, and Delta Airlines, offer flights during this window. This timing works well because it allows you to arrive in Buffalo early and make the most of your day.
How long does it take to fly from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
A flight from GRB to BUF with a layover takes around 4 hours 20 minutes, with the route covering approximately 481 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 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
You can fly first class between GRB and BUF. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How do I earn miles on a Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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 Buffalo from Austin Straubel Intl. (GRB)?
If you're planning to travel to Buffalo from Austin Straubel Intl. (GRB), you can fly into Buffalo Niagara Intl. (BUF) Some flights may connect through major hubs like O'Hare Intl. (ORD), Hartsfield-Jackson Atlanta Intl. (ATL), Minneapolis - St. Paul Intl. (MSP) before reaching Buffalo. 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 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) Buffalo Vacation Packages 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 Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Green Bay, WI (GRB-Austin Straubel Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) 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
Austin Straubel Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
American Airlines, Delta, United
Roundtrip price
$288
Distance
481 mi

Book with confidence

Green Bay to Buffalo Flights

The cheapest times to fly from Green Bay to Buffalo

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Green Bay to Buffalo are during the month of May. You can find some of the cheapest flights from Green Bay to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Green Bay to Buffalo

Sunday is one of the best days to book for cheap flights from Green Bay to Buffalo: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Green Bay to Buffalo

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Green Bay to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $146 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Green Bay to Buffalo flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Green Bay to Buffalo airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Green Bay to Buffalo Flights

*Flight schedules are subject to change.

Explore a world of travel with Expedia

*Available to One Key members.