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 4/7. 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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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

Fri, Feb 20 - Tue, Feb 24
Alaska Airlines Logo
6:55 pm - 10:45 amIAD-SUN
17h 50m1 stop
Alaska Airlines Logo
7:15 pm - 5:55 amSUN-IAD
8h 40m1 stop
$340Alaska Airlines
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Sat, Jan 10 - Wed, Jan 14
Delta Logo
7:05 am - 12:03 pmIAD-SUN
6h 58m1 stop
Delta Logo
3:24 pm - 11:48 pmSUN-IAD
6h 24m1 stop
$341Delta
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Sat, Jan 10 - Wed, Jan 14
Delta Logo
6:20 am - 2:42 pmIAD-SUN
10h 22m2 stops
Delta Logo
3:24 pm - 11:48 pmSUN-IAD
6h 24m1 stop
$346Delta
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Sat, Jan 10 - Wed, Jan 14
Delta Logo
6:20 am - 2:42 pmIAD-SUN
10h 22m2 stops
Delta Logo
12:43 pm - 11:37 pmSUN-IAD
8h 54m2 stops
$351Delta
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Mon, Mar 2 - Mon, Mar 9
Alaska Airlines Logo
7:00 am - 6:30 pmIAD-SUN
13h 30m1 stop
Alaska Airlines Logo
7:15 pm - 5:55 amSUN-IAD
8h 40m1 stop
$369Alaska Airlines
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Tue, Apr 28 - Thu, Apr 30
Delta Logo
7:59 pm - 12:35 pmIAD-SUN
18h 36m2 stops
Delta Logo
3:25 pm - 11:51 pmSUN-IAD
6h 26m1 stop
$399Delta
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Wed, Dec 31 - Wed, Jan 7
United Airlines Logo
6:20 am - 1:27 pmIAD-SUN
9h 07m1 stop
United Airlines Logo
2:31 pm - 11:22 pmSUN-IAD
6h 51m1 stop
$432United Airlines
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Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
2:24 pm - 9:29 pmIAD-SUN
9h 05m1 stop
United Airlines Logo
12:43 pm - 9:17 pmSUN-IAD
6h 34m1 stop
$436United Airlines
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Tue, Mar 3 - Tue, Mar 10
American Airlines Logo
7:05 am - 9:22 pmIAD-SUN
16h 17m2 stops
American Airlines Logo
8:00 am - 10:15 pmSUN-IAD
12h 15m2 stops
$469American Airlines
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Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
9:15 am - 9:22 pmIAD-SUN
14h 07m2 stops
American Airlines Logo
7:45 am - 10:51 pmSUN-IAD
13h 06m2 stops
$489American Airlines
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Everything you should know

Top airlines
Alaska Airlines
Cheapest • from $340 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$340
Alaska Airlines
Fri 2/20Tue 2/24
IAD - SUN • 1 stop
Cheapest one-way
$171
Delta
Tue 4/7
IAD - SUN • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Hailey!
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 Alaska Airlines ($340) and Delta ($341).

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.

Find deals

Good to know

Cheapest flight$171
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 $340 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 7992 reviews
7.9Entertainment
8.2Boarding
7.3Food
8.5Crew
7.9Comfort
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.

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)

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