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$130+ 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 3/7. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Dec 4 — Dec 111
Thu 12/4
Thu 12/11
1 adult, Economy
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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 November 4, 2025.

This Alaska Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/36:45 amDEN - SUN
1 stop27h 23mAlaska Airlines
Fri 12/510:50 amSUN - DEN
1 stop13h 09mAlaska Airlines
Deal found 11/4$281
This Delta deal was found by Cheapflights users on 11/4. 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.
Thu 12/183:54 pmDEN - SUN
1 stop6h 10mDelta
Fri 1/26:42 pmSUN - DEN
1 stop4h 14mDelta
Deal found 11/4$489
This United deal was found by Cheapflights users on 11/4. 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.
Wed 12/311:30 amDEN - SUN
Nonstop2h 07mMultiple Airlines
Fri 12/510:50 amSUN - DEN
1 stop7h 13mMultiple Airlines
Deal found 11/4$513
This Delta deal was found by Cheapflights users on 11/3. 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 12/306:05 amDEN - SUN
1 stop6h 55mDelta
Sat 1/36:42 pmSUN - DEN
1 stop4h 14mDelta
Deal found 11/3$539
This Alaska Airlines deal was found by Cheapflights users on 11/3. 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.
Tue 12/306:02 amDEN - SUN
1 stop12h 42mAlaska Airlines
Sat 1/37:26 pmSUN - DEN
2 stops15h 09mAlaska Airlines
Deal found 11/3$661
This United Airlines deal was found by Cheapflights users on 11/4. 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.
Wed 12/311:30 amDEN - SUN
Nonstop2h 07mUnited Airlines
Fri 12/52:20 pmSUN - DEN
Nonstop1h 55mUnited Airlines
Deal found 11/4$707
This American Airlines deal was found by Cheapflights users on 11/4. 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.
Tue 12/308:11 pmDEN - SUN
2 stops24h 14mAmerican Airlines
Sat 1/38:10 amSUN - DEN
2 stops8h 20mAmerican Airlines
Deal found 11/4$1,127

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 November 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$248
(Alaska Airlines)

One-way from

$130
(Alaska Airlines)

Popular in

August

Cheapest in

June

Average price

$573
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. 13% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 4, 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

Wed 1/28

5:09 pm-11:14 am

1 stop18h 05m

Hailey Sun Valley-Friedman

Sat 1/31

11:56 am-11:35 pm

1 stop11h 39m

$248

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Fri 1/23

1:37 pm-7:38 pm

1 stop6h 01m

Hailey Sun Valley-Friedman

Mon 1/26

8:21 pm-12:38 pm

1 stop16h 17m

$268

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sun 3/1

6:29 am-12:59 pm

1 stop6h 30m

Hailey Sun Valley-Friedman

Sat 3/7

3:22 pm-9:06 pm

1 stop5h 44m

$277

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Wed 12/3

6:45 am-10:08 am

1 stop27h 23m

Hailey Sun Valley-Friedman

Fri 12/5

10:50 am-11:59 pm

1 stop13h 09m

$281

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 4/25

7:05 am-12:35 pm

1 stop5h 30m

Hailey Sun Valley-Friedman

Wed 4/29

3:25 pm-7:10 pm

1 stop3h 45m

$289

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 4/25

11:43 am-1:44 pm

Nonstop2h 01m

Hailey Sun Valley-Friedman

Wed 4/29

2:29 pm-4:27 pm

Nonstop1h 58m

$339

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 3/7

7:50 pm-9:45 am

1 stop13h 55m

$130

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Tue 12/30

6:05 am-1:00 pm

1 stop6h 55m

$133

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 3/7

5:12 am-12:59 pm

2 stops7h 47m

$138

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 2/5

1:34 pm-7:38 pm

1 stop6h 04m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/4

Showing 1-10 of 17 results
1
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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 $56). Flying from Denver to Sun Valley in January is currently the most expensive (average of $233). 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 November 4, 2025.

It’s optimal to fly from Denver to Sun Valley in the evening. By choosing this option you can save up to 16% 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 November 2, 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 November 4, 2025.

The most flights from DEN to SV9 are scheduled on a Monday (16 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (8 on average).

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 November 4, 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
9,002 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
9,002 reviews
United Airlines
7.4
Good
9,002 reviews

Entertainment

7.1

Overall

7.4

Comfort

7.3

Food

6.6

Boarding

7.7

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 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 $277, Alaska Airlines can have you in Sun Valley from Denver in 6h 30m. The distance from Denver to Sun Valley is about 556 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    For one-way options, check prices for Alaska Airlines. According to our data, you can fly for as low as $130. Users have also found prices from $133 and $139 on Delta and Hawaiian 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 (86%), United Airlines (85%), Southwest (83%).

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

    Looking at all options, your cheapest flight can be booked for $52. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $269 on average, our data indicates $192 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 $56). Flying from Denver to Sun Valley in January is currently the most expensive (average of $233). 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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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 November 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$139FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$236FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$288FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$198Average$406FlexibilityNo cancel feeOn-time69%

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