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 2/18. 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

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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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

Sat, Feb 28 - Fri, Mar 6
Alaska Airlines Logo
5:51 pm - 6:30 pmIAD-SUN
26h 39m2 stops
Alaska Airlines Logo
7:15 pm - 5:55 amSUN-IAD
8h 40m1 stop
$457Alaska Airlines
Find Deal
Sat, Feb 28 - Fri, Mar 6
Alaska Airlines Logo
5:51 pm - 2:01 pmIAD-SUN
22h 10m1 stop
Alaska Airlines Logo
7:15 pm - 5:55 amSUN-IAD
8h 40m1 stop
$461Alaska Airlines
Find Deal
Sat, Oct 4 - Wed, Oct 8
Delta Logo
7:05 am - 2:37 pmIAD-SUN
9h 32m1 stop
Delta Logo
3:23 pm - 11:33 pmSUN-IAD
6h 10m1 stop
$480Delta
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Sat, Oct 4 - Wed, Oct 8
Delta Logo
6:00 am - 2:37 pmIAD-SUN
10h 37m2 stops
Delta Logo
3:23 pm - 11:33 pmSUN-IAD
6h 10m1 stop
$485Delta
Find Deal
Sat, Feb 28 - Fri, Mar 6
American Airlines Logo
11:30 am - 8:10 pmIAD-SUN
10h 40m2 stops
American Airlines Logo
1:30 pm - 11:54 pmSUN-IAD
8h 24m2 stops
$519American Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
Alaska Airlines Logo
6:55 pm - 10:45 amIAD-SUN
17h 50m1 stop
Alaska Airlines Logo
2:50 pm - 5:25 pmSUN-IAD
24h 35m1 stop
$557Alaska Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
Alaska Airlines Logo
7:00 am - 6:30 pmIAD-SUN
13h 30m1 stop
Alaska Airlines Logo
2:50 pm - 5:25 pmSUN-IAD
24h 35m1 stop
$562Alaska Airlines
Find Deal
Wed, Dec 17 - Wed, Dec 31
United Airlines Logo
5:15 pm - 12:12 pmIAD-SUN
20h 57m1 stop
United Airlines Logo
12:53 pm - 12:15 amSUN-IAD
9h 22m1 stop
$574United Airlines
Find Deal
Tue, Dec 23 - Wed, Dec 31
United Airlines Logo
10:10 pm - 9:30 pmIAD-SUN
25h 20m1 stop
United Airlines Logo
12:53 pm - 12:15 amSUN-IAD
9h 22m1 stop
$584United Airlines
Find Deal
Wed, Mar 4 - Sun, Mar 8
American Airlines Logo
11:30 am - 8:10 pmIAD-SUN
10h 40m2 stops
American Airlines Logo
1:30 pm - 11:54 pmSUN-IAD
8h 24m2 stops
$736American Airlines
Find Deal

Everything you should know

Top airlines
Alaska Airlines
Cheapest • from $457 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$457
Alaska Airlines
Sat 2/28Fri 3/6
IAD - SUN • 2 stops
Cheapest one-way
$171
Delta
Wed 2/18
IAD - SUN • 1 stop
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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 ($457) and Delta ($480).

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 $457 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, oneworld, and Star Alliance are the airline alliances operating flights between Washington Dulles Airport and Hailey, with oneworld being the most commonly used for this route.

  • 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 7964 reviews
7.9Comfort
8.5Crew
7.9Entertainment
8.2Boarding
7.3Food
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

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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