IAD - SUN

$171 Find Cheap Flights from Washington Dulles Airport to Hailey

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Hailey departing on 12/17. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Hailey

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Hailey, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Hailey, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$329
United Airlines
Wed 3/11Tue 3/17
IAD - SUN • 1 stop
Cheapest one-way
$171
United Airlines
Wed 12/17
IAD - SUN • 1 stop
Top airlines
Delta
Cheapest • from $301 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Hailey!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Hailey (IAD-SUN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Hailey 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 Dulles Intl to Hailey

Wed, Mar 11 - Tue, Mar 17
United Airlines Logo
2:12 pm - 9:24 pmIAD-SUN
9h 12m1 stop
United Airlines Logo
2:33 pm - 11:20 pmSUN-IAD
6h 47m1 stop
$329United Airlines
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Sat, Dec 6 - Wed, Dec 10
Delta Logo
7:05 am - 12:26 pmIAD-SUN
7h 21m1 stop
Delta Logo
3:21 pm - 11:29 pmSUN-IAD
6h 08m1 stop
$359Delta
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Sat, Dec 6 - Wed, Dec 10
Delta Logo
7:05 am - 12:26 pmIAD-SUN
7h 21m1 stop
Delta Logo
1:06 pm - 12:12 amSUN-IAD
9h 06m2 stops
$364Delta
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Tue, Dec 9 - Sat, Dec 13
Delta Logo
7:05 am - 2:41 pmIAD-SUN
9h 36m1 stop
Delta Logo
7:30 am - 9:29 pmSUN-IAD
11h 59m2 stops
$384Delta
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Thu, Mar 12 - Tue, Mar 17
United Airlines Logo
6:15 am - 11:56 amIAD-SUN
7h 41m1 stop
United Airlines Logo
2:33 pm - 11:20 pmSUN-IAD
6h 47m1 stop
$386United Airlines
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Mon, Feb 2 - Mon, Feb 9
United Airlines Logo
2:24 pm - 9:29 pmIAD-SUN
9h 05m1 stop
United Airlines Logo
4:03 pm - 5:32 amSUN-IAD
11h 29m1 stop
$401United Airlines
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Tue, Dec 9 - Sat, Dec 13
Delta Logo
7:01 am - 2:41 pmIAD-SUN
9h 40m2 stops
Delta Logo
7:30 am - 9:29 pmSUN-IAD
11h 59m2 stops
$409Delta
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
7:05 am - 12:26 pmIAD-SUN
7h 21m1 stop
Delta Logo
3:21 pm - 11:29 pmSUN-IAD
6h 08m1 stop
$419Delta
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
7:05 am - 12:26 pmIAD-SUN
7h 21m1 stop
Delta Logo
1:06 pm - 12:12 amSUN-IAD
9h 06m2 stops
$424Delta
Find Deal
Tue, Jan 27 - Sun, Feb 1
United Airlines Logo
4:11 pm - 9:29 pmIAD-SUN
7h 18m1 stop
United Airlines Logo
4:03 pm - 5:32 amSUN-IAD
11h 29m1 stop
$425United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Dulles Intl to Hailey flights

Get data-powered insights and trends into flights from Dulles Intl to Hailey to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Washington Dulles Airport to Hailey?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Washington Dulles Airport to Hailey were found on Delta ($301) and United Airlines ($329).

Which airlines fly non-stop between Washington, D.C. Dulles Intl Airport and Hailey?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Washington, D.C. Dulles Intl Airport to Hailey.

There is just one airline that flies from Washington, D.C. Dulles Intl Airport to Hailey direct and that is Delta. The best round-trip deal found from Delta for the route is $401.

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Good to know

Low seasonSeptember
Cheapest flight$171
Best time to beat the crowds with an average 68% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Washington Dulles Airport to Hailey

When to book flights from Dulles Intl to Hailey

Are your dates flexible? Find out the best times to travel from Dulles Intl to Hailey based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Hailey flights

  • What is the cheapest flight from Washington, D.C. Dulles Intl Airport to Hailey?

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Hailey was $171 for a one-way ticket and $329 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Hailey?

    No, a passport isn't needed to fly from Washington Dulles Airport to Hailey. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Washington Dulles Airport to Hailey?

    When flying out of Washington Dulles Airport you will be using Washington, D.C. Dulles Intl. You will be landing at Hailey, also known as Hailey Sun Valley-Friedman.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Hailey?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Hailey?

    SkyTeam is the only airline alliance operating flights between Washington Dulles Airport and Hailey.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Hailey?

    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 Washington Dulles Airport to Hailey.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Hailey?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Hailey from Washington Dulles Airport 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 Washington Dulles Airport to Hailey?

    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 Hailey with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and SUN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Hailey?

    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 Hailey from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dulles Intl to Hailey

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Hailey. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Hailey? 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 7998 reviews
7.3Food
8.5Crew
8.1Boarding
7.9Comfort
7.9Entertainment
Airline reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

2.0 MediocreAnonymous, Nov 2025ATL - TPA
Read more Delta reviews

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

It would’ve been nice for all that money to have a more substantial snack for free. I remember once upon a time getting a very nice turkey sandwich with Swiss cheese on whole wheat bread for no charge along with a drink. I guess those days are gone. it’s a little insulting being given a cookie or a bag of baked chips Going forward I’ll just bring my own.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Service in business class was not impressive. I ordered coffee with dinner and then watched other people get 2 refills before I got my 1 cup of coffee, and only after I pressed the attendant button overhead. Furthermore, the seats in the forward cabin need maintenance on this 737-800: the upholstery is detaching from the seat frame, at least on the backs of seats 1C, 1D.

The ticket agents in West Palm Beach on Friday afternoon Nov. 7th were incredible in getting us on an earlier plane to Atlanta during the government shutdown. Had the taken our original flight we would have missed our connection. She did this on her own, We didn't even have to ask, and she did it all with a smile and showing genuine concern that we would be taken care of. We are very grateful and thankful. We fly often, and now we will be sure to fly Delta.

Flight delayed then cancelled. Misplaced luggage. Still do not have. Rented car 1100 mile drive. I had to buy some overnight Hotels clothes toiletries gas food at my expense. Still not home. Not sure where luggage is. Over 4 hours on hold to Felta

I truly love flying with Delta. They have always treated me with the upmost respect

Our flight attendant in FIRST CLASS was one of the worst I’ve ever had. She was not at all pleasant, nor particularly good at her service.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Everything you need to know for your flight from Dulles Intl to Hailey

Information on your arrival and departure airports

Washington Dulles Airport (IAD)
Hailey (SUN)