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Sun Valley

$200+ 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 7/27. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — BOI
Jul 31 — Aug 71
Fri 7/31
Fri 8/7
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 July 1, 2026.

This Orbitz deal was found by Cheapflights users on 6/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:02 am
DEN
-
SUN
1 stop27h 36m
Alaska Airlines
Sat 8/2210:21 am
SUN
-
DEN
1 stop12h 55m
Alaska Airlines
Deal found 6/28$426
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 9/177:30 pm
DEN
-
SUN
1 stop14h 16m
Alaska Airlines
Mon 9/2110:28 am
SUN
-
DEN
1 stop7h 42m
Alaska Airlines
Deal found 6/30$429
This Alaska Airlines deal was found by Cheapflights users on 6/29. 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.
Sat 11/76:31 pm
DEN
-
SUN
1 stop16h 20m
Alaska Airlines
Wed 11/1111:33 am
SUN
-
DEN
1 stop6h 02m
Alaska Airlines
Deal found 6/29$436
This United Airlines deal was found by Cheapflights users on 6/30. 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 8/87:25 pm
DEN
-
SUN
Nonstop2h 01m
United Airlines
Sat 8/222:29 pm
SUN
-
DEN
Nonstop2h 02m
United Airlines
Deal found 6/30$449
This United Airlines deal was found by Cheapflights users on 6/26. 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 7/117:25 pm
DEN
-
SUN
Nonstop2h 01m
United Airlines
Wed 7/157:00 am
SUN
-
DEN
Nonstop1h 58m
United Airlines
Deal found 6/26$459
This Alaska Airlines deal was found by Cheapflights users on 6/30. 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 8/253:00 pm
DEN
-
SUN
1 stop18h 39m
Alaska Airlines
Mon 8/3110:21 am
SUN
-
DEN
1 stop7h 49m
Alaska Airlines
Deal found 6/30$462
This Orbitz deal was found by Cheapflights users on 6/26. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/297:05 am
DEN
-
SUN
1 stop28h 06m
Alaska Airlines
Sat 10/3111:53 am
SUN
-
DEN
1 stop6h 07m
Alaska Airlines
Deal found 6/26$466
This Delta deal was found by Cheapflights users on 6/28. 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.
Fri 7/243:55 pm
DEN
-
SUN
1 stop6h 12m
Delta
Mon 7/273:15 pm
SUN
-
DEN
1 stop4h 46m
Delta
Deal found 6/28$469

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 July 1, 2026.

Round-trip from

$426
(Orbitz)

One-way from

$200
(Alaska Airlines)

Popular in

August

Cheapest in

November

Average price

$489
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. 28% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 8% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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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 July 1, 2026.
Use the filters below to find and compare flights from Denver to Sun Valley that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 11/7

6:31 pm-10:51 am

1 stop16h 20m

Hailey Sun Valley-Friedman

Wed 11/11

11:33 am-5:35 pm

1 stop6h 02m

$436

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 8/8

7:25 pm-9:26 pm

Nonstop2h 01m

Hailey Sun Valley-Friedman

Sat 8/22

7:00 am-9:02 am

Nonstop2h 02m

$449

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Tue 8/25

3:00 pm-9:39 am

1 stop18h 39m

Hailey Sun Valley-Friedman

Mon 8/31

10:21 am-6:10 pm

1 stop7h 49m

$464

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 9/17

8:22 am-9:46 am

1 stop25h 24m

Hailey Sun Valley-Friedman

Mon 9/21

10:28 am-9:46 pm

2 stops11h 18m

$467

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Thu 9/17

7:30 pm-9:46 am

1 stop14h 16m

Hailey Sun Valley-Friedman

Sun 9/20

10:28 am-6:10 pm

1 stop7h 42m

$516

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 7/11

6:02 am-9:38 am

1 stop27h 36m

Hailey Sun Valley-Friedman

Wed 7/15

10:20 am-5:20 pm

1 stop7h 00m

$524
Quickest round-trip

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Sat 11/7

11:43 am-1:44 pm

Nonstop2h 01m

Hailey Sun Valley-Friedman

Wed 11/11

2:29 pm-4:27 pm

Nonstop1h 58m

$529

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Tue 8/25

11:45 am-1:48 pm

Nonstop2h 03m

Hailey Sun Valley-Friedman

Mon 8/31

7:00 am-9:02 am

Nonstop2h 02m

$529
Cheapest one-way

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Mon 7/27

9:08 pm-9:38 am

1 stop12h 30m

$200

DenverHailey

DEN - SUN

DENSUN

Denver Intl

Mon 8/3

8:40 am-7:01 pm

1 stop10h 21m

$200

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 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 July 1, 2026.

It’s optimal to fly from Denver to Sun Valley in the afternoon. By choosing this option you can save up to 7% on the cost of your flight, compared to a flight in the evening.

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 July 1, 2026.

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 (7 on average).

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

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 27, 2026.

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. Thursday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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 July 1, 2026.
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
9,909 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

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
9,909 reviews
United Airlines
7.4
Good
9,909 reviews

Comfort

7.3

Entertainment

7.1

Overall

7.4

Boarding

7.7

Crew

8.1

Food

6.6

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 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 4 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 $449, Alaska Airlines can have you in Sun Valley from Denver in 2h 01m. 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 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 (91%), United Airlines (84%), Air Canada (78%).

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

    Looking at all options, your cheapest flight can be booked for $74. While the most popular route (Denver Intl - Hailey Sun Valley-Friedman) can be booked for $449 on average, our data indicates $269 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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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 July 1, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$54Average$130FlexibilityNo cancel feeOn-time62%
DeltaCheapest$68Average$202FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$177Average$389FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$189Average$323FlexibilityNo cancel feeOn-time63%

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