IAD - SUN

$160 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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Everything you should know

Cheapest round-trip
$314
Delta
Tue 4/7Sat 5/9
IAD - SUN • 2 stops
Cheapest one-way
$160
Alaska Airlines
Tue 4/7
IAD - SUN • 1 stop
Top airlines
Delta
Cheapest • from $314 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
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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

Tue, Apr 7 - Sat, May 9
Delta Logo
7:00 am - 2:49 pm
IAD
-
SUN
9h 49m
2 stops
Delta Logo
3:20 pm - 11:32 pm
SUN
-
IAD
6h 12m
1 stop
$314Delta
Tue, Apr 7 - Sat, May 9
Delta Logo
7:20 am - 2:49 pm
IAD
-
SUN
9h 29m
1 stop
Delta Logo
3:20 pm - 11:32 pm
SUN
-
IAD
6h 12m
1 stop
$334Delta
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:35 pm - 9:53 pm
IAD
-
SUN
11h 18m
2 stops
Delta Logo
1:41 pm - 11:10 pm
SUN
-
IAD
7h 29m
1 stop
$339Delta
Mon, Mar 2 - Fri, Mar 6
Alaska Airlines Logo
6:27 pm - 11:10 am
IAD
-
SUN
18h 43m
1 stop
Alaska Airlines Logo
7:04 pm - 5:40 am
SUN
-
IAD
8h 36m
1 stop
$344Alaska Airlines
Tue, Mar 3 - Sat, Mar 7
Delta Logo
12:35 pm - 9:53 pm
IAD
-
SUN
11h 18m
2 stops
Delta Logo
1:41 pm - 11:10 pm
SUN
-
IAD
7h 29m
1 stop
$349Delta
Mon, Jun 29 - Wed, Jul 1
United Airlines Logo
1:25 pm - 6:57 pm
IAD
-
SUN
7h 32m
1 stop
United Airlines Logo
2:29 pm - 12:37 am
SUN
-
IAD
8h 08m
1 stop
$351United Airlines
Wed, Apr 8 - Tue, May 12
Delta Logo
7:20 am - 2:49 pm
IAD
-
SUN
9h 29m
1 stop
Delta Logo
3:20 pm - 11:32 pm
SUN
-
IAD
6h 12m
1 stop
$374Delta
Tue, Mar 3 - Sat, Mar 7
Delta Logo
7:05 am - 2:40 pm
IAD
-
SUN
9h 35m
1 stop
Delta Logo
1:41 pm - 11:10 pm
SUN
-
IAD
7h 29m
1 stop
$379Delta
Tue, Mar 3 - Sat, Mar 7
American Airlines Logo
5:00 am - 12:54 pm
IAD
-
SUN
9h 54m
2 stops
American Airlines Logo
7:55 am - 8:30 pm
SUN
-
IAD
10h 35m
2 stops
$389American Airlines
Tue, Mar 3 - Wed, Mar 4
United Airlines Logo
2:12 pm - 9:19 pm
IAD
-
SUN
9h 07m
1 stop
United Airlines Logo
1:14 pm - 11:56 pm
SUN
-
IAD
8h 42m
1 stop
$399United 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 Delta ($314) and Alaska Airlines ($344).

Good to know

Cheapest flight$160
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 $160 for a one-way ticket and $314 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?

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

  • Which is the best airline for flights from Washington, D.C. to Hailey, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Hailey are Delta and United Airlines. With an average price for the route of $739 and an overall rating of 7.9, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $588 and an overall rating of 7.4.

  • 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 airlines 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 8191 reviews
7.9Comfort
8.5Crew
7.2Food
8.1Boarding
7.8Entertainment
Airline reviews

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

6.0 GoodNikhil, Feb 2026
DTW - ORD
Read more Delta reviews

Flight delay was frustrating, also you cannot checkin online without delta app, web browser check-in throw errors

The gate agent was most helpful in getting me on to fly standby. I greatly appreciate it.

bulkhead seat had very little legroom - even in bsiness class.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Sorry I didn't realize I was writing a review for each leg. Please see my previous review - it applies to the entire flight, not just a single leg.

This is the first time I've been disappointed with Delta. I was called by Delta to see if I would volunteer to change flights since my original flight home was overbooked. I accepted. The modified booking only provided me a 35 minute layover - when you subtract the fact that boarding closes for a flight 15 minutes early, that gave me 20 minutes to run for one end of the airport to the other. I barely made it. On the 2.5 hour flight to Tampa, the crew repeatedly let us know over the intercom that they cannot serve drinks or snacks due to safety/turbulence. I would have accepted this reason if they did not CONTINUALLY SERVE DRINKS AND COOKED FOOD to First class. If safety is the excuse then the entire plane should be strapped in for safety. On top of this the air conditioning vents were not working correctly and the plane was uncomfortably warm. I love Delta and am a loyal Delta traveler, and I have never had an experience like this. I don't know if there's a disconnect between availability among third-party sites like KAYAK and the airlines or what, but when overbooking causes issues like this for travelers it should be reviewed and changes to the booking process should be made. I blame BOTH KAYAK and Delta for this terrible experience.

boarded at 5:30 pm, pushed away from gate at 6pm ... takeoff was not until ~6:45pm; disappointing

Smooth boarding, pleasant and professional lady checking us in. Crew service was excellent, again pleasant, but professional. Nice touch-down on landing! Thank you Delta. 💗

Originally, I was booked in economy. I paid several hundred additional dollars to upgrade to first class. Then I paid several more hundred dollars to change my flight to a slightly earlier flight. I asked if the changed flight would also seat me in first class, and I was told that it would. When I boarded the plane, however, I was seated in economy. So, I paid $500-600 more than I paid for my original ticket for an upgrade and a changed flight - received the changed flight (which was nice), but did not receive the upgrade. So, I was not completely satisfied.

Awesome! On time flight, early arrival, and a complimentary upgrade!

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

The Crew and the food was the worst I ever had in Business Class. First they told us there were no space for carry on. It was plenty of space over our 2 row seats, we had to ask to let us travel with it which was accepted. They were aware that we had to run for the connection due to the previous flight delay. Have us one hour waiting for more customers and not even offer a glass of water. Then started the service and they started to serve other passengers drinks in business and did not offer any drinks until they serve our pre ordered meal and I ask for something to drink. I had to wait until they finished to serve all passengers until Inget something. The crew was the worts I ever had for Business Class in my life.

Not great experience - we were super late boarding due to issues with aircraft. Then when we finally all got onboard and seated and they started taxiing out to the runway they just stopped then turned around and went back to the airport. Apparently the crew “ran out of time” to legally fly us. They mentioned that they were about 2 minutes away from taking off. I understand the rules and safety but kinda wonder why they would have bothered boarding us in the first place? Had to go all the way back and de plane and then wait in a HUGE line to get a hotel (this is somewhere around 2:30am) finally got to hotel by Uber (no shuttle after 20min so gave up) and they ended up putting us all back on the same aircraft at 10am next morning so got about 2.5 hours sleep. They did give us. $250 credit, but it was a São Paulo Brazil flight out of Dulles. The flight and everything was fine.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

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

Information on your arrival and departure airports