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Sun Valley

$113+ 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 2/13. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Jan 21 — Jan 281
Wed 1/21
Wed 1/28
1 adult, Economy
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Cheap 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 December 22, 2025.

This United Airlines deal was found by Cheapflights users on 12/21. 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 12/277:16 pmDEN - SUN
Nonstop2h 14mUnited Airlines
Tue 12/307:00 amSUN - DEN
Nonstop2h 13mUnited Airlines
Deal found 12/21$539
This Delta deal was found by Cheapflights users on 12/21. 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 12/276:27 pmDEN - SUN
1 stop3h 53mDelta
Tue 12/306:42 pmSUN - DEN
1 stop4h 14mDelta
Deal found 12/21$559
This Delta deal was found by Cheapflights users on 12/20. 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 12/276:27 pmDEN - SUN
1 stop3h 53mDelta
Wed 12/3112:40 pmSUN - DEN
1 stop6h 33mDelta
Deal found 12/20$609
This Alaska Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/2911:31 amDEN - SUN
2 stops22h 21mAlaska Airlines
Wed 12/317:26 pmSUN - DEN
1 stop15h 50mAlaska Airlines
Deal found 12/21$667
This United Airlines deal was found by Cheapflights users on 12/21. 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.
Mon 12/297:16 pmDEN - SUN
Nonstop2h 14mUnited Airlines
Wed 12/312:11 pmSUN - DEN
2 stops18h 21mUnited Airlines
Deal found 12/21$671
This United Airlines deal was found by Cheapflights users on 12/20. 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 12/277:16 pmDEN - SUN
Nonstop2h 14mUnited Airlines
Wed 12/312:15 pmSUN - DEN
Nonstop2h 00mUnited Airlines
Deal found 12/20$803
This American Airlines deal was found by Cheapflights users on 12/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:13 pmDEN - SUN
1 stop6h 12mAmerican Airlines
Tue 12/308:10 amSUN - DEN
1 stop6h 57mAmerican Airlines
Deal found 12/21$839

Find 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 December 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$190
(Delta)

One-way from

$113
(Delta)

Popular in

August

Cheapest in

November

Average price

$428
Provider with most accurate pricing for Denver Intl-Hailey Sun Valley-Friedman flight deals.
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Provider most trusted by Cheapflights users for Denver Intl-Hailey Sun Valley-Friedman flights.
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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. 20% potential increase in price ($110 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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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 December 22, 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 2/13

6:40 am-1:01 pm

1 stop6h 21m

Hailey Sun Valley-Friedman

Wed 2/18

3:25 pm-11:25 pm

2 stops8h 00m

$190

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Fri 2/13

6:40 am-1:01 pm

1 stop6h 21m

Hailey Sun Valley-Friedman

Thu 2/19

7:25 am-12:00 pm

1 stop4h 35m

$307

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 2/11

6:23 pm-9:55 pm

1 stop3h 32m

Hailey Sun Valley-Friedman

Thu 2/19

3:25 pm-11:25 pm

2 stops8h 00m

$312

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 2/11

4:10 pm-9:55 pm

1 stop5h 45m

Hailey Sun Valley-Friedman

Tue 2/17

3:25 pm-11:25 pm

2 stops8h 00m

$312

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 2/14

3:59 pm-9:53 pm

1 stop5h 54m

Hailey Sun Valley-Friedman

Thu 2/19

12:41 pm-11:25 pm

2 stops10h 44m

$312

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 2/12

5:30 am-12:01 pm

1 stop6h 31m

Hailey Sun Valley-Friedman

Wed 2/18

12:41 pm-11:25 pm

2 stops10h 44m

$312

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 2/11

12:30 pm-9:55 pm

2 stops9h 25m

Hailey Sun Valley-Friedman

Wed 2/18

3:25 pm-11:25 pm

2 stops8h 00m

$335

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Fri 1/23

5:09 pm-11:14 am

1 stop18h 05m

Hailey Sun Valley-Friedman

Mon 1/26

8:21 pm-12:38 pm

1 stop16h 17m

$345

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 2/11

6:23 pm-9:55 pm

1 stop3h 32m

Hailey Sun Valley-Friedman

Sun 2/15

1:41 pm-11:25 pm

1 stop9h 44m

$347

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 2/14

5:49 pm-2:40 pm

2 stops20h 51m

Hailey Sun Valley-Friedman

Wed 2/18

3:25 pm-11:25 pm

2 stops8h 00m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/20

Showing 1-10 of 17 results
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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

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 $54). Flying from Denver to Sun Valley in March is currently the most expensive (average of $197). 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 December 22, 2025.

It’s optimal to fly from Denver to Sun Valley in the evening. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight at noon.

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 December 20, 2025.

Travelers seeking maximum savings on their Denver to Sun Valley flight should consider departing on Thursday mornings when fares are most often at their lowest. Monday afternoons 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 December 22, 2025.

The most flights from DEN to SV9 are scheduled on a Saturday (17 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (12 on average).

How much does it cost to fly round-trip from Denver to Sun Valley?

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 December 22, 2025.
Read reviews from past customers who have flown United Airlines from Denver to Sun Valley. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,102 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.
United Airlines
7.4
Good
9,102 reviews
United Airlines
7.4
Good
9,102 reviews

Food

6.6

Boarding

7.7

Comfort

7.3

Crew

8.1

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Michelle,Dec 2025

DEN - MKE

I liked that the plane waited 5 minutes for a family whose incoming plane was late. This was the last flight of the day to MKE. Flight attendants actually checked in throughout the flight. Although, not really friendly. Happy to see screens on seat backs again. This is my first time not flying first class in over 10 years. It was economy plus.

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

  • How long is the flight from Denver to Sun Valley?

    For as low as $190, Delta can have you in Sun Valley from Denver in 6h 21m. The distance from Denver to Sun Valley is about 556 mi.

  • 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: Frontier (87%), United Airlines (86%), SkyWest Airlines (86%).

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

    Looking at all options, your cheapest flight can be booked for $42. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $369 on average, our data indicates $189 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 $54). Flying from Denver to Sun Valley in March is currently the most expensive (average of $197). 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 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 December 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$59Average$136FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$230FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$400FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$197Average$285FlexibilityNo cancel feeOn-time63%

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