$249+ Cheap flights from Green Bay to Buffalo (GRB - BUF)
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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — BUF
Sep 9 — Sep 161
Round-trip
1 adult, Economy
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Find cheap flights from Green Bay to Buffalo 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 Green Bay to Buffalo
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Cheapest flights from Green Bay to BuffaloExplore the most affordable flight options available from Green Bay to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
Explore the most affordable flight options available from Green Bay to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/42:31 pm -
1 stop5h 36m
Thu 9/105:58 pm -
1 stop6h 21m
Deal found 8/6![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:26 pm -
2 stops8h 22m
Fri 9/115:44 pm -
2 stops7h 29m
Deal found 8/8![American Airlines logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/111:45 am -
1 stop4h 11m
Sat 9/55:58 pm -
1 stop6h 21m
Deal found 8/6![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:26 pm -
2 stops8h 22m
Thu 9/105:44 pm -
2 stops7h 29m
Deal found 8/6![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:02 pm -
1 stop4h 00m
Sun 9/136:56 pm -
1 stop6h 17m
Deal found 8/8![American Airlines logo]()
$393
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sun 8/162:36 pm -
1 stop5h 35m
Sun 8/235:58 pm -
1 stop6h 21m
Deal found 8/9![United Airlines logo]()
$413
Best flights from Green Bay to BuffaloDiscover carefully curated flight deals from Green Bay to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
Discover carefully curated flight deals from Green Bay to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 10, 2026.
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/42:31 pm -
1 stop5h 36m
Thu 9/105:58 pm -
1 stop6h 21m
Deal found 8/6![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 8/6. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/165:25 pm -
1 stop4h 40m
Mon 1/1812:50 pm -
1 stop4h 38m
Deal found 8/6![Delta logo]()
$322
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:26 pm -
2 stops8h 22m
Thu 9/105:44 pm -
2 stops7h 29m
Deal found 8/6![American Airlines logo]()
$388
This United Airlines deal was found by Cheapflights users on 8/8. 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 9/111:45 am -
1 stop4h 11m
Sat 9/55:58 pm -
1 stop6h 21m
Deal found 8/8![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:02 pm -
1 stop4h 00m
Sun 9/134:55 pm -
2 stops8h 18m
Deal found 8/8![American Airlines logo]()
$462
Last-minute flights from Green Bay to BuffaloDiscover last-minute flight deals from Green Bay to Buffalo. Data last updated August 10, 2026 and is based on user searches.
Discover last-minute flight deals from Green Bay to Buffalo. Data last updated August 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sun 8/162:36 pm -
1 stop5h 35m
Sun 8/235:58 pm -
1 stop6h 21m
Deal found 8/9![United Airlines logo]()
$413
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/111:45 am -
1 stop4h 11m
Sat 9/55:58 pm -
1 stop6h 21m
Deal found 8/6![United Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/42:31 pm -
1 stop5h 36m
Thu 9/105:58 pm -
1 stop6h 21m
Deal found 8/6![United Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 8/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:26 pm -
2 stops8h 22m
Thu 9/105:44 pm -
2 stops7h 29m
Deal found 8/6![American Airlines logo]()
$388
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:26 pm -
2 stops8h 22m
Fri 9/115:44 pm -
2 stops7h 29m
Deal found 8/8![American Airlines logo]()
$309
This American Airlines deal was found by Cheapflights users on 8/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:02 pm -
1 stop4h 00m
Sun 9/136:56 pm -
1 stop6h 17m
Deal found 8/8![American Airlines logo]()
$393
One-way flights from Green Bay to BuffaloSearch for one-way flight options from Green Bay to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
Search for one-way flight options from Green Bay to Buffalo. Find affordable one-way fares based on user searches. Data last updated August 10, 2026.
This Delta deal was found by Cheapflights users on 8/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am -
1 stop3h 35m
Deal found 8/10![Delta logo]()
$249
This Delta deal was found by Cheapflights users on 8/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 pm -
1 stop3h 35m
Deal found 8/8![Delta logo]()
$253
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Sat 9/511:45 am -
2 stops10h 27m
Deal found 8/6![United Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:57 am -
1 stop3h 25m
Deal found 8/9![Delta logo]()
$264
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Thu 10/85:00 am -
2 stops8h 23m
Deal found 8/9![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 8/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:19 pm -
2 stops18h 57m
Deal found 8/9![Delta logo]()
$275
This American Airlines deal was found by Cheapflights users on 8/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/77:02 pm -
1 stop4h 00m
Deal found 8/7![American Airlines logo]()
$284
This American Airlines deal was found by Cheapflights users on 8/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:26 pm -
2 stops8h 22m
Deal found 8/9![American Airlines logo]()
$289
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/46:25 am -
2 stops6h 53m
Deal found 8/7![United Airlines logo]()
$298
This American Airlines deal was found by Cheapflights users on 8/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:43 am -
2 stops9h 38m
Deal found 8/5![American Airlines logo]()
$304
Find flight deals from Green Bay to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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 August 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $299 (United Airlines) |
One-way from | $249 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Green Bay 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 August 10, 2026.
Use the filters below to find and compare flights from Green Bay to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Fri 9/4
2:31 pm-9:07 pm
1 stop5h 36m
Buffalo
Thu 9/10
5:58 pm-11:19 pm
1 stop6h 21m
$299
Quickest round-trip
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Sat 1/16
5:25 pm-11:05 pm
1 stop4h 40m
Buffalo
Mon 1/18
12:50 pm-4:28 pm
1 stop4h 38m
$322
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Tue 9/1
11:45 am-4:56 pm
1 stop4h 11m
Buffalo
Sat 9/5
5:58 pm-11:19 pm
1 stop6h 21m
$369
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Fri 9/4
12:26 pm-9:48 pm
2 stops8h 22m
Buffalo
Thu 9/10
5:44 pm-12:13 am
2 stops7h 29m
$388
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Mon 9/7
7:02 pm-12:02 am
1 stop4h 00m
Buffalo
Sun 9/13
4:55 pm-12:13 am
2 stops8h 18m
$462
Cheapest one-way
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Fri 2/5
7:00 am-11:44 am
1 stop3h 44m
$249
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Sat 11/7
1:58 pm-8:51 pm
1 stop5h 53m
$249
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Mon 10/5
6:00 pm-11:53 pm
1 stop4h 53m
$249
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Sat 9/5
8:55 am-4:56 pm
1 stop7h 01m
$249
Quickest one-way
Green BayBuffalo
GRB Green Bay Austin-Straubel - BUF Buffalo
GRBBUF
Green Bay Austin-Straubel
Sat 11/7
7:00 am-11:35 am
1 stop3h 35m
$249
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Green Bay to Buffalo
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 Green Bay to Buffalo in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Green Bay-Buffalo flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Green Bay-Buffalo flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Green Bay-Buffalo flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Green Bay-Buffalo 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 Green Bay-Buffalo 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 Green Bay to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from Green Bay with our price prediction graph.
GRB-BUF
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.
Related info for your journey
Find useful and relevant information for your journey from Green Bay to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Amherst
Williamsville
Orchard Park
Eden
Bowmansville
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