$154 Find Cheap Flights from Denver to Sun Valley

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Sun Valley departing on 12/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Denver to Sun Valley (DEN-SUN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Sun Valley that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Sun Valley

Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
1:37 pm - 7:38 pmDEN-SUN
6h 01m1 stop
Alaska Airlines Logo
8:21 pm - 12:38 pmSUN-DEN
16h 17m1 stop
$308Alaska Airlines
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Wed, Nov 12 - Sun, Nov 16
Alaska Airlines Logo
8:02 pm - 9:35 amDEN-SUN
13h 33m1 stop
Alaska Airlines Logo
10:17 am - 5:50 pmSUN-DEN
7h 33m1 stop
$328Alaska Airlines
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Sun, Mar 1 - Sat, Mar 7
Delta Logo
6:15 am - 12:41 pmDEN-SUN
6h 26m1 stop
Delta Logo
1:35 pm - 7:02 pmSUN-DEN
5h 27m1 stop
$343Delta
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Fri, Jan 23 - Mon, Jan 26
Alaska Airlines Logo
7:00 am - 7:38 pmDEN-SUN
12h 38m1 stop
Alaska Airlines Logo
8:21 pm - 10:53 amSUN-DEN
14h 32m2 stops
$347Alaska Airlines
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Sat, Apr 25 - Wed, Apr 29
Delta Logo
7:05 am - 12:35 pmDEN-SUN
5h 30m1 stop
Delta Logo
3:25 pm - 7:10 pmSUN-DEN
3h 45m1 stop
$349Delta
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Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
11:43 am - 1:44 pmDEN-SUN
2h 01mnonstop
United Airlines Logo
2:29 pm - 4:27 pmSUN-DEN
1h 58mnonstop
$399United Airlines
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Wed, Apr 1 - Sat, Apr 4
American Airlines Logo
3:05 pm - 8:10 pmDEN-SUN
5h 05m1 stop
American Airlines Logo
8:00 am - 3:07 pmSUN-DEN
7h 07m1 stop
$414American Airlines
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Sun, Mar 1 - Sat, Mar 7
United Airlines Logo
11:30 am - 1:44 pmDEN-SUN
2h 14mnonstop
United Airlines Logo
7:00 am - 8:55 amSUN-DEN
1h 55mnonstop
$429United Airlines
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Fri, Feb 6 - Fri, Feb 6
Multiple Airlines Logo
11:30 am - 1:45 pmDEN-SUN
2h 15mnonstop
Multiple Airlines Logo
8:21 pm - 11:58 pmSUN-DEN
27h 37m2 stops
$585Multiple Airlines
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Wed, Dec 31 - Mon, Jan 5
Multiple Airlines Logo
11:15 am - 1:27 pmDEN-SUN
2h 12mnonstop
Multiple Airlines Logo
7:26 pm - 5:52 pmSUN-DEN
22h 26m1 stop
$590Multiple Airlines
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Everything you should know

Cheapest round-trip
$308
Overall average: $349
Alaska Airlines
Fri 1/23Mon 1/26
DEN - SUN • 1 stop
Cheapest non-stop
$349
Typical prices: $369-$677
United Airlines
Wed 11/12Sun 11/16
DEN - SUN • Non-stop
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We hope you love your trip to Sun Valley!
Useful Info

Good to know

Low seasonMay
Cheapest flight$160
Best time to beat the crowds but there is an average 7% increase in price.
Most popular time to fly with an average 5% increase in price.
Flight from Denver to Hailey

When to book flights from Denver to Sun Valley

Are your dates flexible? Find out the best times to travel from Denver to Sun Valley based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

FAQs for booking flights from Denver to Sun Valley

  • Which airports will I be using when flying from Denver to Sun Valley?

    When flying out of Denver you’ll be using Denver Intl. Sun Valley does not have its own airport so you’ll be flying into nearby Hailey Sun Valley-Friedman airport, which is 13.4 mi away.

  • How long does a flight from Denver to Sun Valley take?

    Direct flights cover the 556 miles separating Denver and Sun Valley in about 2h 01m.

  • How many flights are there between Denver and Sun Valley?

    1 direct flights run between Denver and Sun Valley on a daily basis. On average, there are about 9 departures each week.

  • What’s the cheapest day of the week to fly between Denver and Sun Valley?

    Consider leaving on a Friday and avoid Tuesdays if you are looking for the best rates. For your return to Denver, you’ll find the best rates on Fridays and the most expensive ones on Tuesdays.

  • How does KAYAK find such low prices on flights from Denver to Sun Valley?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Sun Valley.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Sun Valley?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sun Valley from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Sun Valley?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Sun Valley with an airline and back to Denver with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Sun Valley?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sun Valley from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • Which airlines provide the cheapest flights from Denver to Sun Valley?

    In the last 72 hours, the cheapest one-way ticket between Denver and Sun Valley found on KAYAK was with Alaska Airlines for $160. Alaska Airlines offered a round-trip connection from $308 and Delta from $343.

Top tips for finding cheap flights from Denver to Sun Valley

  • There is no airport in Sun Valley. Instead, you’ll be flying into Hailey Sun Valley-Friedman Airport when flying between Denver and Sun Valley.
  • High season is considered to be July, August and September. The cheapest month to fly is June.

Reviews of the top airlines flying from Denver to Sun Valley

 
Need help choosing which airline to fly with from Denver to Sun Valley? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7992 reviews
8.2Boarding
8.5Crew
7.3Food
7.9Comfort
7.9Entertainment
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

We were delayed, which I think had to do with air traffic control. Otherwise, everything was great.

Crew seemed a bit cranky. No seatback screens. But boarding was efficient and on time and we arrived early.

See previous note about the passenger in Denver who threw my husband's bag out of the overhead bin in order to maker room for his own. And the flight attendant back up the new passenger.

Terrible. They wouldn't allow me on my flight on the 14th..

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

Electric plugs didn't work. Entertainment system wasn't working

The design of the light switch on the arm rest is ridiculous.

The gate attendant let me walk right by her with a bag too big for the overhead compartment

Overall, it was a good experience. Boarding was good and there was plenty of overhead bin space for everyone’s carryons (even when we boarded toward the end). Only improvement would be to offer trash service more regularly.

David went above and beyond to make our flight the best that it could be

Everything you need to know for your flight from Denver to Sun Valley

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