IAD - SUN

$165 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 4/4. 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
Mon 3/30Fri 4/3
IAD - SUN • 1 stop
Cheapest one-way
$165
United Airlines
Sat 4/4
IAD - SUN • 1 stop
Top airlines
United Airlines
Cheapest • from $329 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Hailey. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $702 (round-trip)
Denver (DEN)
Shortest trip • 7h 21m (one-way)
Insights
Insights
Insights
Insights
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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!
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

Mon, Mar 30 - Fri, Apr 3
United Airlines Logo
6:15 am - 11:44 am
IAD
-
SUN
7h 29m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$329United Airlines
Thu, May 7 - Sat, May 9
Delta Logo
11:15 am - 9:59 pm
IAD
-
SUN
12h 44m
2 stops
Delta Logo
3:20 pm - 11:32 pm
SUN
-
IAD
6h 12m
1 stop
$354Delta
Sat, Mar 21 - Sat, Mar 28
Alaska Airlines Logo
7:00 am - 7:12 pm
IAD
-
SUN
14h 12m
1 stop
Alaska Airlines Logo
7:54 pm - 5:40 am
SUN
-
IAD
7h 46m
1 stop
$370Alaska Airlines
Mon, Mar 30 - Fri, Apr 3
United Airlines Logo
6:15 am - 11:44 am
IAD
-
SUN
7h 29m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$396United Airlines
Thu, Mar 26 - Mon, Mar 30
United Airlines Logo
6:15 am - 11:53 am
IAD
-
SUN
7h 38m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$399United Airlines
Tue, Mar 31 - Sat, Apr 4
United Airlines Logo
6:15 am - 11:44 am
IAD
-
SUN
7h 29m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$414United Airlines
Sun, Mar 29 - Sat, Apr 4
United Airlines Logo
6:15 am - 11:44 am
IAD
-
SUN
7h 29m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$419United Airlines
Tue, Mar 24 - Sat, Mar 28
United Airlines Logo
2:12 pm - 9:24 pm
IAD
-
SUN
9h 12m
1 stop
United Airlines Logo
7:00 am - 4:40 pm
SUN
-
IAD
7h 40m
1 stop
$429United Airlines
Tue, Mar 24 - Sat, Mar 28
American Airlines Logo
11:30 am - 9:36 pm
IAD
-
SUN
12h 06m
2 stops
American Airlines Logo
7:40 am - 8:30 pm
SUN
-
IAD
10h 50m
2 stops
$439American Airlines
Mon, Mar 23 - Mon, Mar 30
United Airlines Logo
6:15 am - 11:53 am
IAD
-
SUN
7h 38m
1 stop
United Airlines Logo
12:25 pm - 9:04 pm
SUN
-
IAD
6h 39m
1 stop
$444United Airlines
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 United Airlines ($329) and Delta ($354).

Find deals

Good to know

Cheapest flight$165
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 $165 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 8286 reviews
8.5Crew
7.9Comfort
8.1Boarding
7.8Entertainment
7.2Food
Airline reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

2.0 MediocreIsabella, Mar 2026
SLC - AUS
Read more Delta reviews

Another late night flight and MORE men belligerently drinking and yelling. I had to move from first to economy because they were so obnoxious and disruptive. Crazy to go from a cozy chair to cardboard when you were supposed to be in first. Delta allows was too much drinking which leads to belligerent behavior.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Love delta smaller commuter plane so no entertainment and paid wifi on MKE-LGA leg was extremely unreliable and slow

Stop changing gates. Stop cancelling flights Stop moving my seat.

Extremely disappointed with Delta. They canceled flight last minute and then I rebooked the other flights and with which were delayed as well

Could not get my connecting flight boarding pass until four hrs before departure! Ver annoying especially since the staff could not explain why!

The flight was flying with 30% capacity. The flight my seat from preferred seating to back of the seat. Even though i can understand that this was to balance the flight weight. The flight attendance decided to do the serving near my seat and in the middle , their noices woke me up from sleep , when i realized that the service has ended and when they were going back asked for a coffee, for which they answered they have completed teh service in my location. That really upset me as they woke me up and also rejected the coffee i asked. I ended up landing with a headache, thanks to the crew that screwed up my travel

Delayed. Hot. Passenger next to me was so large I couldn’t move.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

The boarding process doesn't make sense since some people that will sit behind your rows are boarded before you and then they take up the luggage space above your head. I then have to wait for people to get off the plane before I can go back to get my luggage.

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)