$243 Cheap Flights from Duluth (DLH) to Buffalo (BUF)

View $243 flight on Wed, Aug 5, 2026Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Buffalo Niagara Intl. Airport (BUF)

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Cheap Flights from Duluth to Buffalo (DLH-BUF)

Prices were available within the past 7 days and start at $243 for one-way flights and $258 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sat, Apr 25 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$258 Roundtrip, found 2 days ago
$258
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Duluth to Buffalo, returning Wed, Apr 29, priced at $258 found 2 days ago
United
Sat, Apr 25 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$284 Roundtrip, found 2 days ago
$284
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Duluth to Buffalo, returning Wed, Apr 29, priced at $284 found 2 days ago
Delta
Wed, Sep 30 - Thu, Oct 8
DLH
Duluth
BUF
Buffalo
$293 Roundtrip, found 6 days ago
$293
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 30 from Duluth to Buffalo, returning Thu, Oct 8, priced at $293 found 6 days ago
Delta
Wed, Sep 16 - Thu, Sep 24
DLH
Duluth
BUF
Buffalo
$298 Roundtrip, found 6 days ago
$298
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Sep 16 from Duluth to Buffalo, returning Thu, Sep 24, priced at $298 found 6 days ago
Delta
Tue, Apr 21 - Sat, May 2
DLH
Duluth
BUF
Buffalo
$304 Roundtrip, found 2 days ago
$304
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Apr 21 from Duluth to Buffalo, returning Sat, May 2, priced at $304 found 2 days ago
United
Tue, Apr 21 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$328 Roundtrip, found 2 days ago
$328
Roundtrip
found 2 days ago
Select United flight, departing Tue, Apr 21 from Duluth to Buffalo, returning Wed, Apr 29, priced at $328 found 2 days ago
Delta
Wed, Apr 22 - Sat, May 2
DLH
Duluth
BUF
Buffalo
$339 Roundtrip, found 2 days ago
$339
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Apr 22 from Duluth to Buffalo, returning Sat, May 2, priced at $339 found 2 days ago
United
Sat, Apr 25 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$340 Roundtrip, found 2 days ago
$340
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Duluth to Buffalo, returning Wed, Apr 29, priced at $340 found 2 days ago
United
Sat, Apr 25 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$348 Roundtrip, found 2 days ago
$348
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Duluth to Buffalo, returning Wed, Apr 29, priced at $348 found 2 days ago
United
Sat, Apr 25 - Wed, Apr 29
DLH
Duluth
BUF
Buffalo
$354 Roundtrip, found 2 days ago
$354
Roundtrip
found 2 days ago
Select United flight, departing Sat, Apr 25 from Duluth to Buffalo, returning Wed, Apr 29, priced at $354 found 2 days ago
Flights from Duluth (DLH) to Buffalo (BUF)
Origin airport
Duluth Intl.
Destination airport
Buffalo Niagara Intl.
Airlines serving
Delta, United
Roundtrip price
$258
Distance
710 mi

Duluth to Buffalo Flights

The cheapest times to fly from Duluth 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 Duluth to Buffalo are during the month of April. You can find some of the cheapest flights from Duluth to Buffalo with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to Buffalo

Sunday is one of the best days to book for cheap flights from Duluth 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 Duluth 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 Duluth to Buffalo in 2026. You can also book with separate airlines for your outbound and return journeys, from $243 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 Duluth 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 Duluth 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.

 

Frequently asked questions

How much does a flight from Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) cost?
You can find cheap one-way flights from $243 and cheap return flights from $258 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) with Expedia. Return flights typically cost between $516 and $1507. 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 Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The cheapest month to fly from DLH to BUF is April 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Enter DLH to BUF and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
United is one of the cheapest airlines offering connecting flights from Duluth, MN (DLH) to Buffalo, NY (BUF) with return tickets starting from around $480.448 with a layover in O'Hare Intl. (ORD). Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
To find a cheap flight from Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The earliest flight from Duluth International Airport (DLH) to Buffalo Niagara International Airport (BUF) typically departs at around 5:00 AM. This flight is operated by Delta and is part of a seasonal service, meaning it may not be available throughout the year. An early start can help you maximize your time in Buffalo. 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
The most popular departure times for flights from Duluth (DLH) to Buffalo (BUF) are in the early morning, from 3am to 6am. About 35% of passengers prefer this time window. Many major carriers, including Delta Airlines, United Airlines and American Airlines, offer flights during this window. This timing is popular because it allows you to arrive in Buffalo with a full day ahead of you.
How long does it take to fly from Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
Flights from DLH to BUF with one stop typically take around 4 hours 30 minutes, covering approximately 710 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
First class seats are offered on the DLH to BUF route with Delta Air Lines and United Airlines.
How do I earn miles on a Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight with Expedia?
It's easy to earn miles on a Duluth, MN (DLH-Duluth 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 Duluth Intl. (DLH)?
From Duluth Intl. (DLH), you can fly into Buffalo Niagara Intl. (BUF) to reach Buffalo. Some flights may connect through major hubs like Minneapolis - St. Paul Intl. (MSP), O'Hare Intl. (ORD) 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) at the last minute?
Typically, booking a last minute flight from Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.) flight and hotel package?
Securing a Duluth, MN (DLH-Duluth 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 Duluth, MN (DLH-Duluth Intl.) to Buffalo, NY (BUF-Buffalo Niagara Intl.)?
If you booked your Duluth, MN (DLH-Duluth 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.

*Flight schedules are subject to change.

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*Available to One Key members.