HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Sun Valley

$309+ Cheap flights from Denver (DEN) to Sun Valley, ID

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Denver to Sun Valley 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.

Cheapflights Tip: The best prices from Denver Intl to Sun Valley are usually found in May or January, booked 32 days in advance, depart on a Monday or Saturday and return on a Friday

Cheap flight deals from Denver to Sun Valley

Keep the following information in mind while searching for Denver to Sun Valley flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$371
(Alaska Airlines)

One-way from

$309
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$499
Provider with most accurate pricing for Denver Intl-Hailey Sun Valley-Friedman flight deals.
Search Deals
Provider most trusted by Cheapflights users for Denver Intl-Hailey Sun Valley-Friedman flights.
Search Deals
From Denver Intl to Sun Valley
Search Deals
One-way flight from Denver Intl to Sun Valley
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($51 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find flight deals from Denver to Sun Valley

Cheapest flights from Denver to Sun Valley
Explore the most affordable flight options available from Denver to Sun Valley. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This Alaska Airlines deal was found by Cheapflights users on 3/31. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/136:00 amDEN - SUN
1 stop27h 38mAlaska Airlines
Mon 6/1610:20 amSUN - DEN
1 stop13h 39mAlaska Airlines
Deal found 3/31$371
This Delta deal was found by Cheapflights users on 3/30. 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.
Mon 5/56:30 amDEN - SUN
2 stops29h 38mDelta
Sat 5/1012:37 pmSUN - DEN
2 stops9h 10mDelta
Deal found 3/30$376
This United Airlines deal was found by Cheapflights users on 3/31. 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 6/227:06 pmDEN - SUN
Nonstop2h 03mUnited Airlines
Sat 7/267:00 amSUN - DEN
Nonstop2h 08mUnited Airlines
Deal found 3/31$389

Cheapflights Fare Finder

Customize your flight search to find flights from Denver to Sun Valley 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 March 31, 2025.
Use the filters below to find and compare flights from Denver to Sun Valley that are best for you.

Fly from

Denver

Fly to

Sun Valley

Route

Depart

Return

Price

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Fri 6/13

6:00 am-9:38 am

1 stop27h 38m

Hailey Sun Valley-Friedman

Mon 6/16

10:20 am-11:59 pm

1 stop13h 39m

$371

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Mon 5/5

6:30 am-12:08 pm

2 stops29h 38m

Hailey Sun Valley-Friedman

Sat 5/10

12:37 pm-9:47 pm

2 stops9h 10m

$376

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sun 6/22

7:06 pm-9:09 pm

Nonstop2h 03m

Hailey Sun Valley-Friedman

Sat 7/26

7:00 am-9:08 am

Nonstop2h 08m

$389

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sun 4/27

11:31 am-1:35 pm

Nonstop2h 04m

$309

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sun 4/27

6:05 pm-10:25 pm

1 stop4h 20m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Best time to book a flight from Denver to Sun Valley

Have a flexible travel schedule? Discover the best time to fly to Sun Valley from Denver with our price prediction graph.
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.

Cheapflights Insights

Everything you need to know about your flight from Denver to Sun Valley

How far ahead should I book a flight from Denver to Sun Valley?

Use this chart to determine the optimal time to book a round-trip flight from Denver to Sun Valley. Price data was last updated on March 28, 2025.

Booking 32 days in advance of your planned departure date is, on average, the best time to get cheap flights from Denver to Sun Valley. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Denver to Sun Valley?

Currently, October is the cheapest month in which you can book a flight from Denver to Sun Valley (average of $314). Flying from Denver to Sun Valley in June is currently the most expensive (average of $419). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DEN to SV9?

Find hourly flight availability from Denver to Sun Valley. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 31, 2025.

When flying from Denver to Sun Valley, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Denver to Sun Valley

Explore weekly flight availability from Denver to Sun Valley. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 31, 2025.

The most flights from DEN to SV9 are scheduled on a Monday (16 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

Rainfall in Sun Valley by month

Plan your trip to Sun Valley by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Sun Valley ranges from 0.4 - 2.4 inches per month. January is typically the wettest month, when rainfall can reach 2.4 in. July is typically the driest time to visit Sun Valley when rainfall is around 0.4 in.

Temperature in Sun Valley by month

Plan your trip to Sun Valley by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Sun Valley, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 64.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 19.4 F).

Reviews of airlines servicing Sun Valley

Get insights into the airlines that provide service to Sun Valley. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Sun Valley. Reviews last updated March 31, 2025.
Read through reviews of airlines operating flights from Denver to Sun Valley, such as Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,818 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,899 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,614 reviews
Alaska Airlines
8.0
Very good
9,818 reviews

Crew

8.5

Food

7.1

Comfort

7.9

Overall

8.0

Entertainment

7.1

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Related info for your journey

Find useful and relevant information for your journey from Denver to Sun Valley. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Denver to Sun Valley?

    If you book a flight to Sun Valley from Denver, you will be flying from Denver Intl, which is the city’s only airport. Denver Intl (DEN) is located 18.5 mi from the center of Denver. There is 1 flight from Denver Intl to Sun Valley per day from 4 different airlines.

  • How popular is this Denver to Sun Valley flight route?

    The Denver Intl to Sun Valley flight path was viewed by 3 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the most reliable airlines from Denver to Sun Valley?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Denver to Sun Valley on time: SkyWest Airlines (88%), United Airlines (87%), Air Canada (83%).

  • What are the cheapest flights from Denver to Sun Valley?

    Looking at all options, your cheapest flight can be booked for $69. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $309 on average our data indicates $299 when flying from Denver to Sun Valley.

  • Can I find deals for flights from Denver to Sun Valley that include hotel bookings?

    Yes. In addition to deals on Denver to Sun Valley flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Sun Valley?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Sun Valley.

  • Can I find deals for business class flights from Denver to Sun Valley?

    Yes. Cheapflights offers flight deals from Denver to Sun Valley by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Denver to Sun Valley?

    Currently, October is the cheapest month in which you can book a flight from Denver to Sun Valley (average of $314). Flying from Denver to Sun Valley in June is currently the most expensive (average of $419). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Denver to Sun Valley

See prices for flight routes from nearby airports that may be better suited for you.
Denver to Boise flights
Denver to Spokane flights
Denver to Jackson flights
Denver to Idaho Falls flights
Colorado Springs to Boise flights
Durango to Spokane flights
Colorado Springs to Spokane flights
Montrose to Spokane flights
Denver to West Yellowstone flights
Denver to Hailey flights
Denver to Lewiston flights
Denver to Twin Falls flights
Grand Junction to Spokane flights
Colorado Springs to Jackson flights
Colorado Springs to Idaho Falls flights
Grand Junction to Boise flights
Hayden to Jackson flights
Hayden to Boise flights
Denver to Pocatello flights
Grand Junction to Jackson flights
Durango to Idaho Falls flights
Aspen to Boise flights
Gunnison to Boise flights
Aspen to Hailey flights
Alamosa to Spokane flights
Colorado Springs to Lewiston flights
Colorado Springs to Pocatello flights
Vail to Spokane flights
Aspen to Spokane flights
Colorado Springs to Hailey flights

Top 4 airlines flying from Denver to Sun Valley

Discover the top 4 airlines that operate flights from Denver to Sun Valley. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$169Average$405FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$182Average$407FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$292FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$201Average$379FlexibilityNo cancel feeOn-time69%
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.