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Sun Valley

$147+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Denver Intl to Sun Valley are usually found in April or May, booked 67 days in advance, depart on a Saturday or Tuesday and return on a Thursday

Cheap flight deals from Denver to Sun Valley

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) to Sun Valley (SV9). 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 January 21, 2025.

Round-trip from

$306
(Delta)

One-way from

$147
(Delta)

Popular in

November

Cheapest in

April

Average price

$352
From Denver Intl to Sun Valley
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One-way flight from Denver Intl to Sun Valley
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Highest demand for flights based on searches. 12% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in January 2025
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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 January 21, 2025.

This Delta deal was found by Cheapflights users on 1/20. 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 2/226:25 amDEN - SUN
1 stop6h 13mDelta
Wed 2/263:35 pmSUN - DEN
1 stop3h 46mDelta
Deal found 1/20$306
This United Airlines deal was found by Cheapflights users on 1/20. 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 2/227:05 pmDEN - SUN
Nonstop2h 07mUnited Airlines
Wed 2/262:27 pmSUN - DEN
Nonstop2h 04mUnited Airlines
Deal found 1/20$309
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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.
Thu 2/277:55 pmDEN - SUN
1 stop13h 42mAlaska Airlines
Tue 3/410:19 amSUN - DEN
1 stop5h 53mAlaska Airlines
Deal found 1/20$341

Find flights from Denver to Sun Valley within your budget

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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 2/22

6:25 am-12:38 pm

1 stop6h 13m

Hailey Sun Valley-Friedman

Wed 2/26

3:35 pm-7:21 pm

1 stop3h 46m

$306

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 2/22

7:05 pm-9:12 pm

Nonstop2h 07m

Hailey Sun Valley-Friedman

Wed 2/26

2:27 pm-4:31 pm

Nonstop2h 04m

$309

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 2/27

7:55 pm-9:37 am

1 stop13h 42m

Hailey Sun Valley-Friedman

Tue 3/4

10:19 am-4:12 pm

1 stop5h 53m

$341

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 2/20

7:50 pm-12:38 pm

1 stop16h 48m

$147

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Fri 2/28

7:00 am-6:19 pm

1 stop11h 19m

$148

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 2/15

7:46 am-10:01 pm

2 stops14h 15m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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.

Travel insights for flights from Denver to Sun Valley

Get recent, data-driven insights about flights from Denver to Sun Valley including ideal travel times, pricing trends, and more.

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 January 17, 2025.

Booking 66 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 $436). 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 January 21, 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.

What is the cheapest day to fly from Denver to Sun Valley?

Use this chart to determine the cheapest time to fly round-trip from Denver to Sun Valley. Price data was last updated on January 21, 2025.

Travelers seeking maximum savings on their Denver to Sun Valley flight should consider departing on Saturday mornings when fares are most often at their lowest. Tuesday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 January 21, 2025.

The most flights from DEN to SV9 are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 January 21, 2025.
Read through reviews of airlines operating flights from Denver to Sun Valley, such as Delta, United Airlines and Alaska Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,706 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 10

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
9,706 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 10

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
8,521 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 10

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
8,985 reviews
Alaska Airlines
8.0
Very good
9,706 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Entertainment

7.1

Food

7.1

Reviews

1 / 10

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 are 2 flights 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 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • What are the cheapest airlines to fly from Denver to Sun Valley one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $147. Users have also found prices from $148 and $273 on Alaska Airlines and United Airlines, respectively.

  • 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: Air Canada (83%), United Airlines (79%), Southwest (78%).

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

    Looking at all options, your cheapest flight can be booked for $128. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $288 on average our data indicates $320 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 $436). 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.

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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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$156Average$402FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$182Average$235FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$195Average$378FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$223Average$295FlexibilityNo cancel feeOn-time63%
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