Title: CA $165 Cheap Flights from Denver (DEN) to Buffalo (BUF) - Expedia.ca ![Buffalo, NY](https://images.trvl-media.com/place/602674/87d981cf-5755-46d3-aea8-dd650f6a21eb.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $165 Cheap Flights from Denver (DEN) to Buffalo (BUF) [View CA $165 flight on Sun, Nov 16, 2025](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:DEN,to:BUF,departure:16/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:164.90&airProductToken=AQpmCjEIwYIBEgM4NTIYg2kgo7EBKKSe_QIwsZ_9AjhCQABYAWoFQkFTSUNyCE9XQVVaTkJWCjEIwYIBEgM3NDYYo7EBIIEtKOuf_QIwnaH9AjhCQAFYAWoFQkFTSUNyCE9XQVVaTkJWEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Denver International Airport (DEN) to Buffalo Niagara Intl. Airport (BUF) - ![JetBlue Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![Delta](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:den,to:buf,departure:21/10/2025TANYT&leg2=from:buf,to:den,departure:28/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) ![notification illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* ![trophy illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Denver (DEN) to Buffalo (BUF) Prices were available within the past 7 days and start at CA $165 for one-way flights and CA $329 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Tue, Nov 4 - Sat, Nov 15 DEN Denver BUF Buffalo CA $329 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:04/11/2025TANYT&leg2=from:BUF,to:DEN,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:328.70&airProductToken=AQpGCiEIxJgBEgQxNjQ4GINpIOO0ASjrmvwCMJKc_AI4RUAAWAEKIQjEmAESBDMxOTIY47QBIIEtKOWc_AIwqJ38AjhFQAFYAQpGCiEIxJgBEgQyODk4GIEtIOO0ASigkf0CMO6R_QI4RUAAWAEKIQjEmAESBDExMTMY47QBIINpKMaS_QIwkpT9AjhFQAFYARIKCAEQARgBKgJETBgBIgQIARABKAQwAQ) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Nov 7 - Sun, Nov 9 DEN Denver BUF Buffalo CA $331 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:07/11/2025TANYT&leg2=from:BUF,to:DEN,departure:09/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:330.20&airProductToken=AQptCjQIxJgBEgM3NTgYg2kgqVEow8D8AjC0wvwCOEVAAFgBaglNQUlOQkFTSUNyCFZBV05BMEJHCjUIxJgBEgQ1MjIzGKlRIIEtKN7D_AIww8T8AjhFQAFYAWoJTUFJTkJBU0lDcghWQVdOQTBCRwpwCjYIxJgBEgQyODk4GIEtIOO0ASjgzfwCMK7O_AI4RUAAWAFqCU1BSU5CQVNJQ3IIVkFXTkEwQkcKNgjEmAESBDExMTMY47QBIINpKIbP_AIw0tD8AjhFQAFYAWoJTUFJTkJBU0lDcghWQVdOQTBCRxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Oct 25 - Sat, Nov 8 DEN Denver BUF Buffalo CA $357 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:25/10/2025TANYT&leg2=from:BUF,to:DEN,departure:08/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:356.60&airProductToken=AQpGCiEIxJgBEgQxNTc4GINpIOO0ASj5qfsCMKKr-wI4RUAAWAEKIQjEmAESBDMxOTIY47QBIIEtKOmr-wIwrKz7AjhFQAFYAQpGCiEIxJgBEgQyODk4GIEtIOO0ASjIwvwCMJHD_AI4RUAAWAEKIQjEmAESBDExMTMY47QBIINpKOfD_AIwp8X8AjhFQAFYARIKCAEQARgBKgJETBgBIgQIARABKAQwAQ) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sun, Nov 2 - Wed, Nov 5 DEN Denver BUF Buffalo CA $359 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:02/11/2025TANYT&leg2=from:BUF,to:DEN,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:358.10&airProductToken=AQpnCjIIwYIBEgQzMjg1GINpIKOxASjs__sCMOqA_AI4QkAAWAFqBUJBU0lDcghRVkFVWk5CVgoxCMGCARIDNzQ2GKOxASCBLSirgvwCMN2D_AI4QkABWAFqBUJBU0lDcghRVkFVWk5CVgpnCjIIwYIBEgQxMDQ0GIEtIKOxASiOpvwCMOun_AI4QkAAWAFqBUJBU0lDcghPV0FVWk5CVgoxCMGCARIDNTc3GKOxASCDaSidqPwCMJ-p_AI4QkABWAFqBUJBU0lDcghPV0FVWk5CVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Sat, Dec 13 - Mon, Dec 15 DEN Denver BUF Buffalo CA $360 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:13/12/2025TANYT&leg2=from:BUF,to:DEN,departure:15/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:359.90&airProductToken=AQpcCisIwmwSAjk4GINpIKlRKJ3V_wIw8db_AjhMQABYAWoCRE5yCFBDMkFVRUwxCi0IwmwSBDE2MDIYqVEggS0ootj_AjD82P8COExAAVgBagJETnIIUEMyQVVFTDEKXgotCMJsEgMyMTYYgS0gwZMBKNni_wIwreP_AjhMQABYAWoCRE5yCFBDMkFVRUwxCi0IwmwSAzM5MxjBkwEgg2kozuT_AjDs5v8COExAAVgBagJETnIIUEMyQVVFTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Tue, Feb 3 - Tue, Feb 10 DEN Denver BUF Buffalo CA $362 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:03/02/2026TANYT&leg2=from:BUF,to:DEN,departure:10/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:361.30&airProductToken=AQpcCisIwmwSAjk4GINpIKlRKJyehAMw-J-EAzhMQABYAWoCRE5yCFBDMkFVRUwxCi0IwmwSBDI5MDIYqVEggS0ojqGEAzDsoYQDOExAAVgBagJETnIIUEMyQVVFTDEKXgotCMJsEgM3MTYYgS0gwZMBKKnohAMw_uiEAzhMQABYAWoCRE5yCFBDMkFVRUwxCi0IwmwSAzk5MxjBkwEgg2koy-qEAzDs7IQDOExAAVgBagJETnIIUEMyQVVFTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Wed, Dec 3 - Wed, Dec 10 DEN Denver BUF Buffalo CA $371 Roundtrip found 1 hour ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:03/12/2025TANYT&leg2=from:BUF,to:DEN,departure:10/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:371.00&airProductToken=AQpBCh8IwmwSBDEyOTgYg2kgqVEoqt_-AjCF4f4COExAAFgBCh4IwmwSAzEwMhipUSCBLSjb4f4CMLri_gI4TEABWAEKQQoeCMJsEgM1MDEYgS0gqVEoyK__AjCisP8COExAAFgBCh8IwmwSBDEyOTcYqVEgg2ko47b_AjD9uP8COExAAVgBEgoIARABGAEqAkI2GAEiBAgBEAEoBDAB) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Sat, Dec 13 - Mon, Dec 15 DEN Denver BUF Buffalo CA $378 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:13/12/2025TANYT&leg2=from:BUF,to:DEN,departure:15/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:377.10&airProductToken=AQpeCi0IwmwSAzk5NBiDaSDBkwEow9X_AjCk1_8COExAAFgBagJETnIIUEMyQVVFTDEKLQjCbBIDNzE1GMGTASCBLSj32P8CMNvZ_wI4TEABWAFqAkROcghQQzJBVUVMMQpcCi0IwmwSBDI5MDEYgS0gqVEozuX_AjCj5v8COExAAFgBagJETnIIUEkyUVJFTDEKKwjCbBICOTcYqVEgg2ko_uj_AjCT6_8COExAAVgBagJETnIIUEkyUVJFTDESCggBEAEYASoCQjYYASIECAEQASgCKAQoBjAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Thu, Oct 23 - Mon, Oct 27 DEN Denver BUF Buffalo CA $386 Roundtrip found 5 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:23/10/2025TANYT&leg2=from:BUF,to:DEN,departure:27/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:385.70&airProductToken=AQpuCjUIxJgBEgQxMDM1GINpIOBcKImT-wIwu5T7AjhFQABYAWoJTUFJTkJBU0lDcghWQVZOQTBCRwo1CMSYARIEMjMzNBjgXCCBLSijlfsCMJuW-wI4RUABWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQkcKbQo1CMSYARIEMjA1MBiBLSDgXCiiwfsCMKzC-wI4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQkcKNAjEmAESAzk1NhjgXCCDaSjfwvsCMKfE-wI4RUABWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQkcSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Sun, Nov 2 - Sun, Nov 16 DEN Denver BUF Buffalo CA $414 Roundtrip found 6 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:DEN,to:BUF,departure:02/11/2025TANYT&leg2=from:BUF,to:DEN,departure:16/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:413.50&airProductToken=AQoiCiAI1YIBEgQyNDczGINpIIEtKKaF_AIw6Ib8AjhLQABYAQoiCiAI1YIBEgQxNzI3GIEtIINpKLad_QIwmJ_9AjhLQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) ## Find the cheapest month to fly from Denver (DEN) to Buffalo (BUF) ### January is typically the cheapest month to fly From CA $164 - CA $517 per traveller. ## Alternative airports near Buffalo Prices were available within the past 7 days. Prices and availability are subject to change. [](https://www.expedia.ca/Flights-Search?leg1=from:DEN,to:BUF,departure:21/10/2025TANYT&leg2=from:BUF,to:DEN,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) BUF Buffalo Niagara Intl. CheapestClosest 16 min [Flights from CA $399](https://www.expedia.ca/Flights-Search?leg1=from:DEN,to:BUF,departure:21/10/2025TANYT&leg2=from:BUF,to:DEN,departure:02/11/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&sortOrder=INCREASING&sortType=PRICE) Flight from Denver to Buffalo (DEN - BUF) route information | Origin airport | Denver Intl. | | --- | --- | | Destination airport | Buffalo Niagara Intl. | | Airlines serving | American Airlines, Delta, JetBlue Airways, United | | Roundtrip price | CA $329 | | Distance | 2169 km | | Average flight time | 5 hours 41 mins | ## Denver to Buffalo Flights **The easy way to book your flights from Denver to Buffalo**  With Expedia, it’s simple to find and book flights to Buffalo from Denver 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 Buffalo Niagara Intl., 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 Denver to Buffalo today, tomorrow, or this week.   **Save dollars with cheap flights from Denver Intl., DEN to Buffalo Niagara Intl., BUF**  Sort your search results by price to find great deals on your flight from Denver to Buffalo—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Buffalo from Denver currently is just CA $329 rising to CA $414.   Here are more money-saving tips:  - Fly in November when flight prices are normally at their lowest  - Book about a month to 6 weeks before you travel for the best prices to Buffalo   - 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 Buffalo from Denver**  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 Buffalo with Expedia today. ## Frequently asked questions ### How much is a flight from Denver Airport to Buffalo Niagara Intl. Airport (BUF)? > Round-trip journeys from DEN to Buffalo Niagara International Airport start from CA $329. This figure is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book today so you don't miss out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from DIA airport to Buffalo Niagara International Airport? > The majority of flights can be cancelled online, but whether or not you are charged a fee varies between airlines. If you do have to cancel your trip, follow the instructions in the [Customer Service Portal](https://www.expedia.ca/helpcenter). ### How do I find cheap flights from DEN to BUF that have flexible change policies? > Flights from DEN to Buffalo Niagara Intl. Airport (BUF) with flexible change policies are available from several carriers. Simply use our "No change fees" filter when searching. You'll only need to pay the difference in ticket price, with no extra fees to worry about. ### How many hours is the flight from Denver Airport to Buffalo Niagara Intl. Airport (BUF)? > The flight time between DIA airport and Buffalo Niagara International Airport is 5 hours and 23 minutes. If you get peckish on longer flights, pack some fruit or snacks in your carry-on luggage. ### How far is the flight from Denver Intl. Airport (DEN) to Buffalo Niagara Intl. Airport (BUF)? > You'll be cruising at altitude for a while, as the flight distance from Denver Intl. Airport (DEN) to BUF is 2,200 kilometres. Create a playlist of your favourite tunes before you leave home to keep yourself entertained during the journey. ### Which airlines fly direct from DIA airport to BUF? > Southwest Airlines (WN) will get you from DEN to Buffalo Niagara International Airport safely and reliably. Choose from 17 flights every month along this route. ### Are DIA airport to BUF flight tickets cheaper when they're purchased at the last minute? > Flight prices fluctuate, so there are no guarantees. While last-minute flight deals between Denver Intl. Airport (DEN) and Buffalo Niagara Intl. Airport (BUF) are of course possible, it's also a good idea to keep track of prices well before you fly. In fact, some airlines release their prices up to a year ahead of the departure date. 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