$223 Cheap Flights from Buffalo (BUF) to Sun Valley (SUN)

View $223 flight on Wed, Nov 11, 2026Opens in a new window

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Sun Valley, ID (SUN-Friedman Memorial)

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Cheap Flights from Buffalo to Sun Valley (BUF-SUN)

Prices were available within the past 7 days and start at $223 for one-way flights and $401 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$401 Roundtrip, found 6 days ago
$401
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $401 found 6 days ago
United
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$423 Roundtrip, found 6 days ago
$423
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $423 found 6 days ago
United
Thu, Nov 12 - Mon, Nov 16
BUF
Buffalo
SUN
Sun Valley
$439 Roundtrip, found 6 days ago
$439
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 12 from Buffalo to Sun Valley, returning Mon, Nov 16, priced at $439 found 6 days ago
Delta
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$490 Roundtrip, found 6 days ago
$490
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $490 found 6 days ago
United
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$501 Roundtrip, found 6 days ago
$501
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $501 found 6 days ago
United
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$523 Roundtrip, found 6 days ago
$523
Roundtrip
found 6 days ago
Select United flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $523 found 6 days ago
United
Thu, Nov 12 - Mon, Nov 16
BUF
Buffalo
SUN
Sun Valley
$539 Roundtrip, found 6 days ago
$539
Roundtrip
found 6 days ago
Select United flight, departing Thu, Nov 12 from Buffalo to Sun Valley, returning Mon, Nov 16, priced at $539 found 6 days ago
Delta
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$540 Roundtrip, found 6 days ago
$540
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $540 found 6 days ago
Delta
Wed, Nov 11 - Sun, Nov 15
BUF
Buffalo
SUN
Sun Valley
$545 Roundtrip, found 6 days ago
$545
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Nov 11 from Buffalo to Sun Valley, returning Sun, Nov 15, priced at $545 found 6 days ago
Alaska Airlines
Thu, Jul 23 - Sun, Jul 26
BUF
Buffalo
SUN
Sun Valley
$1,287 Roundtrip, found 1 day ago
$1,287
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, Jul 23 from Buffalo to Sun Valley, returning Sun, Jul 26, priced at $1,287 found 1 day ago

Frequently asked questions

How much does a flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) cost?
You can find cheap one-way flights from $223 and cheap return flights from $401 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) with Expedia. One-way flights usually range from $250 to $1138, and return flights typically cost between $339 and $2185. 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The cheapest month to fly from BUF to SUN is November 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Enter BUF to SUN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
United is one of the cheapest airlines offering connecting flights from Buffalo, NY (BUF) to Sun Valley, ID (SUN), with round-trip tickets starting from around $333.37. This flight includes 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
To find a cheap flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial), 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 Sun Valley, ID (SUN-Friedman Memorial)?
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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The earliest flight from Buffalo Niagara International Airport (BUF) to Friedman Memorial Airport (SUN) usually leaves at around 6:00 AM, operated by Delta. An early flight like this allows you to arrive in Sun Valley with plenty of time to enjoy the day. 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 Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
For flights from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial), the most popular departure times are in the early morning, from 6am to 9am. About 73% of passengers prefer this time window. Many major carriers, including American Airlines, United, and Delta, offer flights during this window. This timing works well because it allows travelers to arrive in Sun Valley early and make the most of their day.
How long does it take to fly from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
A flight from BUF to SUN with a layover takes around 7 hours 20 minutes, with the route covering approximately 1,778 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 Sun Valley, ID (SUN-Friedman Memorial)?
First class seats are offered on the BUF to SUN route. First class cabins are available on:

  • American Airlines
  • Delta Air Lines
  • United Airlines

How do I earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight with Expedia?
It's easy to earn miles on a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) 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 Sun Valley from Buffalo Niagara Intl. (BUF)?
If you're planning to travel to Sun Valley from Buffalo Niagara Intl. (BUF), you can fly into Friedman Memorial (SUN) Some flights may connect through major hubs like Detroit Metropolitan Wayne County (DTW), Hartsfield-Jackson Atlanta Intl. (ATL), O'Hare Intl. (ORD) before reaching Sun Valley. 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 Sun Valley, ID (SUN-Friedman Memorial) at the last minute?
Typically, booking a last minute flight from Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) 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 Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package?
Securing a Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) 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 Sun Valley, ID (SUN-Friedman Memorial)?
If you booked your Buffalo, NY (BUF-Buffalo Niagara Intl.) to Sun Valley, ID (SUN-Friedman Memorial) 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
Friedman Memorial
Roundtrip price
$400
Distance
1777 mi

Book with confidence

Buffalo to Sun Valley Flights

The cheapest times to fly from Buffalo to Sun Valley

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 Buffalo to Sun Valley are during the month of November. You can find some of the cheapest flights from Buffalo to Sun Valley with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Sun Valley

Sunday is one of the best days to book for cheap flights from Buffalo to Sun Valley: 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 Buffalo to Sun Valley

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 Buffalo to Sun Valley in 2026. You can also book with separate airlines for your outbound and return journeys, from $223 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 Buffalo to Sun Valley 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 Buffalo to Sun Valley 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.

 

Buffalo to Sun Valley Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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