$224 Cheap United flights Denver (DEN) to Sun Valley (SUN)

View $224 flight on Fri, Sep 19, 2025Opens in a new window

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$224 Cheap United flights Denver (DEN) to Sun Valley (SUN)

Prices were available within the past 7 days and start at $224 for one-way flights and $209 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Sep 25 - Sat, Sep 27
DEN
Denver
SUN
Sun Valley
$209 Roundtrip, found 5 hours ago
$209
Roundtrip
found 5 hours ago
Select United flight, departing Thu, Sep 25 from Denver to Sun Valley, returning Sat, Sep 27, priced at $209 found 5 hours ago
United
Tue, Sep 2 - Tue, Sep 9
DEN
Denver
SUN
Sun Valley
$219 Roundtrip, found 17 hours ago
$219
Roundtrip
found 17 hours ago
Select United flight, departing Tue, Sep 2 from Denver to Sun Valley, returning Tue, Sep 9, priced at $219 found 17 hours ago
United
Sat, Sep 6 - Mon, Sep 8
DEN
Denver
SUN
Sun Valley
$229 Roundtrip, found 5 hours ago
$229
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Sep 6 from Denver to Sun Valley, returning Mon, Sep 8, priced at $229 found 5 hours ago
United
Sat, Sep 27 - Mon, Sep 29
DEN
Denver
SUN
Sun Valley
$249 Roundtrip, found 5 hours ago
$249
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Sep 27 from Denver to Sun Valley, returning Mon, Sep 29, priced at $249 found 5 hours ago
United
Sat, Oct 4 - Mon, Oct 6
DEN
Denver
SUN
Sun Valley
$274 Roundtrip, found 5 hours ago
$274
Roundtrip
found 5 hours ago
Select United flight, departing Sat, Oct 4 from Denver to Sun Valley, returning Mon, Oct 6, priced at $274 found 5 hours ago
United
Wed, Sep 17 - Sun, Sep 21
DEN
Denver
SUN
Sun Valley
$279 Roundtrip, found 12 hours ago
$279
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Sep 17 from Denver to Sun Valley, returning Sun, Sep 21, priced at $279 found 12 hours ago
Flights from Denver (DEN) to Sun Valley (SUN)
Origin airport
Denver Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Popular airline
Alaska Airlines
Distance
556 mi
Average flight time
2 hours 1 min

Frequently asked questions

How much is a United Airlines flight from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN)?
Apply the "Price (lowest to highest)" filter on Expedia to look for cheap United Airlines round-trip flights from $209 from DEN to SUN. Affordable one-way options from $224 are also on offer.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from DEN to SUN with United Airlines?
United Airlines flights to Sun Valley are generally cheaper in the quieter months of November and April. Whether you're in search of a return or one-way ticket, you could score a better deal then.
What is the cheapest time to book flights from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN) with United Airlines?
For cheap United Airlines fares from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect what you pay. Sunday is typically the most affordable, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your flight on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN)?
United Airlines has direct flights from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN), with 14 departures each week. Simply select the "Nonstop" and "Airline" filters during your search on Expedia to show all direct United Airlines flights to SUN.
How long does it take to fly from DEN to SUN with United Airlines?
From wheels-up to touchdown, a direct United Airlines flight from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN) takes approximately 2h 9m.
Which day of the week has the most United Airlines flights from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN)?
If it's flexibility you're after, Saturday offers the most choice for United Airlines flights from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN). Take your pick of 2 different departures.
What is the earliest United Airlines flight from DEN to SUN?
Departing DEN at 11:25AM UTC-7, the earliest United Airlines flight to SUN lands at 1:38PM UTC-7. Traveling early means you'll be less likely to encounter delays or cancellations.* Not an early riser? The last United Airlines flight from DEN to SUN departs at 7:20PM UTC-7 and touches down at 9:25PM UTC-7.*Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Sun Valley?
Friedman Memorial Airport (SUN) is the primary Sun Valley hub for United Airlines flights from Denver Intl. Airport (DEN).
Why fly with United Airlines from DEN to SUN?
Journey from DEN to SUN with United Airlines and you'll enjoy a range of benefits starting with a rewarding loyalty program. When booking through Expedia as a United Mileage Plus and One Key™ member, you may also earn OneKeyCash™* to use on select future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN)?
Book a United Airlines flight from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN), and you'll likely be flying on an Embraer 175. Bear in mind though, that the aircraft type can vary due to operational needs.
Can I change or cancel my United Airlines flight from Denver Intl. Airport (DEN) to Friedman Memorial Airport (SUN)?
Depending on the type of ticket you purchased, a fee will generally apply if you cancel or change your booking more than 24 hours after it has been confirmed. To secure tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when looking for flights. For more information on modifying or canceling your reservation, go to "Trips," select your flight and click on "Manage Booking."

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