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Sun Valley

$229+ 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 10/16. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
out 16 — out 231
qui 10/16
qui 10/23
1 adult, Economy
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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 setembro 16, 2025.

Round-trip from

$229
(United Airlines)

Popular in

August

Cheapest in

January

Average price

$539
From Denver Intl to Sun Valley
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($94 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 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 setembro 16, 2025.

This United Airlines deal was found by Cheapflights users on 9/15. 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.
qui 10/1611:31 amDEN - SUN
Nonstop2h 02mUnited Airlines
dom 10/197:00 amSUN - DEN
Nonstop1h 53mUnited Airlines
Deal found 9/15$229
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 12/307:16 pmDEN - SUN
Nonstop2h 14mUnited Airlines
ter 1/67:00 amSUN - DEN
Nonstop2h 14mUnited Airlines
Deal found 9/14$269
This Delta deal was found by Cheapflights users on 9/16. 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.
qua 10/83:41 pmDEN - SUN
1 stop6h 12mDelta
sáb 10/117:30 amSUN - DEN
1 stop4h 17mDelta
Deal found 9/16$289
This United Airlines deal was found by Cheapflights users on 9/16. 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.
qui 10/167:16 pmDEN - SUN
Nonstop2h 02mUnited Airlines
seg 10/207:00 amSUN - DEN
Nonstop1h 55mUnited Airlines
Deal found 9/16$299
This United Airlines deal was found by Cheapflights users on 9/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 10/811:31 amDEN - SUN
Nonstop2h 02mUnited Airlines
sáb 10/117:00 amSUN - DEN
Nonstop1h 55mUnited Airlines
Deal found 9/14$364
This United Airlines deal was found by Cheapflights users on 9/16. 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.
sex 10/176:00 amDEN - SUN
1 stop6h 59mUnited Airlines
seg 10/207:00 amSUN - DEN
Nonstop1h 55mUnited Airlines
Deal found 9/16$393
This Delta deal was found by Cheapflights users on 9/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 10/163:41 pmDEN - SUN
1 stop6h 12mDelta
dom 10/197:30 amSUN - DEN
1 stop4h 17mDelta
Deal found 9/15$409
This Delta deal was found by Cheapflights users on 9/16. 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.
ter 12/306:27 pmDEN - SUN
1 stop3h 53mDelta
sáb 1/36:42 pmSUN - DEN
1 stop4h 17mDelta
Deal found 9/16$414

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 setembro 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

qua 10/8

3:41 pm-9:53 pm

1 stop6h 12m

Hailey Sun Valley-Friedman

sáb 10/11

12:49 pm-7:01 pm

1 stop6h 12m

$289

DenverHailey

DEN - SUN

DENSUN

Denver Intl

qui 10/16

7:16 pm-9:18 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

dom 10/19

7:00 am-8:53 am

Nonstop1h 53m

$299

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 10/17

7:16 pm-9:18 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

seg 10/20

7:00 am-8:55 am

Nonstop1h 55m

$299

DenverHailey

DEN - SUN

DENSUN

Denver Intl

qui 10/16

7:16 pm-9:18 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

seg 10/20

7:00 am-8:55 am

Nonstop1h 55m

$299

DenverHailey

DEN - SUN

DENSUN

Denver Intl

qua 10/8

11:31 am-1:33 pm

Nonstop2h 02m

Hailey Sun Valley-Friedman

sáb 10/11

7:00 am-8:55 am

Nonstop1h 55m

$364

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 9/19

9:23 pm-9:34 am

1 stop12h 11m

$265

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 10/10

7:16 pm-9:18 pm

Nonstop2h 02m

$320

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 10/10

5:30 am-12:09 pm

1 stop6h 39m

$440

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 9/19

7:04 pm-9:05 pm

Nonstop2h 01m

$479

DenverHailey

DEN - SUN

DENSUN

Denver Intl

sex 10/10

8:03 pm-9:36 am

3 stops37h 33m

$507

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 11 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 $314). Flying from Denver to Sun Valley in June is currently the most expensive (average of $398). 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 setembro 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 September 14, 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. Sunday 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 setembro 16, 2025.

The most flights from DEN to SV9 are scheduled on a Monday (17 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 setembro 16, 2025.
Read reviews from past customers who have flown Delta and 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.
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,957 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,924 reviews
Delta
8.0
Very good
7,957 reviews

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Overall

8.0

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 8 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 $299, Delta can have you in Sun Valley from Denver in 2h 02m. 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 $265. Users have also found prices from $320 and $440 on United Airlines and Delta, 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 (79%), United Airlines (77%), Air Canada (72%).

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

    Looking at all options, your cheapest flight can be booked for $75. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $249 on average, our data indicates $219 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 $398). 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 setembro 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$62Average$133FlexibilityNo cancel feeOn-time62%
DeltaCheapest$98Average$413FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$197Average$284FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$208Average$409FlexibilityNo cancel feeOn-time69%

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