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Sun Valley

$209+ Cheap flights from Denver (DEN) to Sun Valley, ID

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
1 adult, Economy
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Cheapflights Tip: The best prices from Denver Intl to Sun Valley are usually found in June or January, booked 32 days in advance, depart on a Saturday or Wednesday and return on a Saturday

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 June 16, 2025.

Round-trip from

$209
(United Airlines)

Popular in

November

Cheapest in

June

Average price

$344
From Denver Intl to Sun Valley
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($36 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 16, 2025.

This United Airlines deal was found by Cheapflights users on 6/15. 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 8/27:00 pmDEN - SUN
Nonstop2h 02mUnited Airlines
Tue 8/57:00 amSUN - DEN
Nonstop2h 08mUnited Airlines
Deal found 6/15$209
This Delta deal was found by Cheapflights users on 6/14. 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.
Tue 7/296:10 pmDEN - SUN
1 stop3h 46mDelta
Tue 8/57:30 amSUN - DEN
1 stop4h 28mDelta
Deal found 6/14$229
This Alaska Airlines deal was found by Cheapflights users on 6/14. 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 9/111:06 pmDEN - SUN
1 stop20h 28mAlaska Airlines
Wed 9/1710:16 amSUN - DEN
1 stop7h 05mAlaska Airlines
Deal found 6/14$353
This United deal was found by Cheapflights users on 6/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:31 amDEN - SUN
Nonstop2h 01mMultiple Airlines
Tue 9/2310:16 amSUN - DEN
1 stop7h 05mMultiple Airlines
Deal found 6/15$423

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 June 16, 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

Sat 8/2

7:00 pm-9:02 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

Tue 8/5

7:00 am-9:08 am

Nonstop2h 08m

$209

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Tue 7/29

6:10 pm-9:56 pm

1 stop3h 46m

Hailey Sun Valley-Friedman

Tue 8/5

7:30 am-11:58 am

1 stop4h 28m

$229

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 9/11

1:06 pm-9:34 am

1 stop20h 28m

Hailey Sun Valley-Friedman

Wed 9/17

10:16 am-5:21 pm

1 stop7h 05m

$353

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Mon 7/14

7:00 pm-9:02 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

Tue 7/15

10:20 am-4:54 pm

1 stop6h 34m

$568

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 7/12

7:00 pm-9:02 pm

Nonstop2h 02m

$224

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 7/12

3:55 pm-9:56 pm

1 stop6h 01m

$234

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Mon 7/14

11:33 am-9:38 am

2 stops22h 05m

$361

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

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 June 13, 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 $395). 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 June 16, 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 June 15, 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. Wednesday 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 June 16, 2025.

The most flights from DEN to SV9 are scheduled on a Sunday (20 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 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 June 16, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 5 different airlines.

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

    The Denver Intl to Sun Valley flight path was viewed by 7 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 United Airlines. According to our data, you can fly for as low as $224. Users have also found prices from $234 and $361 on Delta and Alaska 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: SkyWest Airlines (78%), United Airlines (77%), Air Canada (73%).

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

    Looking at all options, your cheapest flight can be booked for $59. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $209 on average our data indicates $161 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 $395). 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

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Alternative routes for Denver to Sun Valley

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Denver to Sun Valley

Discover the top 5 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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$64Average$133FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$415FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$168Average$235FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$197Average$292FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$210Average$389FlexibilityNo cancel feeOn-time69%

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