SLC - IAD

$105 Find Cheap Flights from Salt Lake City to Washington Dulles Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Salt Lake City to Dulles Intl departing on 5/31. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Salt Lake City to Washington, D.C., 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 Salt Lake City to Washington, D.C., as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Salt Lake City to Dulles Intl (SLC-IAD)

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

Recent round-trip flight deals from Salt Lake City to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Salt Lake City to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Frontier Logo
6:36 pm - 10:07 amSLC-IAD
13h 31m1 stop
Frontier Logo
7:25 am - 4:42 pmIAD-SLC
11h 17m1 stop
$198Frontier
Find Deal
Wed, May 28 - Sat, May 31
Frontier Logo
5:06 pm - 5:55 amSLC-IAD
10h 49m1 stop
Frontier Logo
7:40 am - 4:41 pmIAD-SLC
11h 01m1 stop
$208Frontier
Find Deal
Wed, May 28 - Thu, Jun 5
Delta Logo
5:55 pm - 11:53 pmSLC-IAD
3h 58mnonstop
Delta Logo
7:30 am - 10:06 amIAD-SLC
4h 36mnonstop
$269Delta
Find Deal
Sat, May 24 - Fri, Jun 6
Delta Logo
10:20 am - 6:47 pmSLC-IAD
6h 27m1 stop
Delta Logo
7:30 am - 10:06 amIAD-SLC
4h 36mnonstop
$279Delta
Find Deal
Thu, May 29 - Mon, Jun 2
United Airlines Logo
7:45 am - 1:44 pmSLC-IAD
3h 59mnonstop
United Airlines Logo
5:45 pm - 8:49 pmIAD-SLC
5h 04mnonstop
$319United Airlines
Find Deal
Thu, May 15 - Wed, May 21
United Airlines Logo
8:50 am - 2:58 pmSLC-IAD
4h 08mnonstop
United Airlines Logo
5:18 pm - 11:36 pmIAD-SLC
8h 18m1 stop
$332United Airlines
Find Deal
Tue, Jun 10 - Sat, Jun 14
American Airlines Logo
7:02 pm - 8:38 amSLC-IAD
11h 36m2 stops
American Airlines Logo
5:26 pm - 11:00 pmIAD-SLC
7h 34m1 stop
$345American Airlines
Find Deal
Tue, May 20 - Tue, May 27
American Airlines Logo
12:32 pm - 11:59 pmSLC-IAD
9h 27m2 stops
American Airlines Logo
9:10 am - 6:17 pmIAD-SLC
11h 07m2 stops
$349American Airlines
Find Deal
Thu, Jun 5 - Mon, Jun 16
Southwest Logo
1:15 pm - 10:50 pmSLC-IAD
7h 35m1 stop
Southwest Logo
7:20 pm - 9:40 amIAD-SLC
16h 20m2 stops
$380Southwest
Find Deal
Thu, Sep 4 - Sun, Sep 7
Southwest Logo
6:00 am - 4:45 pmSLC-IAD
8h 45m1 stop
Southwest Logo
5:00 am - 1:45 pmIAD-SLC
10h 45m2 stops
$430Southwest
Find Deal
Wed, May 21 - Fri, Jul 11
Expert advice

Expert advice for your flight from Salt Lake City to Dulles Intl

 
Snippets provided in this section are AI-generated based on a summarization of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airlines
Delta

Delta offers free Wi-Fi for SkyMiles members on domestic flights, enhancing in-flight productivity.


Delta's Sky Priority check-in expedites the process for premium cabin and elite status passengers.

Read more about Deltaby Stefanie Waldek
United Airlines

United's Premier Access offers priority check-in for Polaris, First, and Premium Plus passengers.


United's Economy Plus seats provide up to six inches more legroom than standard economy.

Airports
SLC

For a quicker security experience at SLC, use the Level 1 checkpoint, which is usually less crowded than the main Level 2 area.

Read more about SLCby Harriet Baskas
IAD

Use the Silver Line Metro for convenient travel from IAD to downtown D.C. It takes about 50 minutes and is cost-effective.

Read more about IADby Stefanie Waldek
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on Delta, United Airlines and IAD

Stefanie Waldek

Stefanie Waldek

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Useful Info

KAYAK's insights & trends for Salt Lake City to Dulles Intl flights

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

What’s the cheapest day of the week to fly from Salt Lake City to Washington Dulles Airport?

The average price of all round-trip flights from Salt Lake City to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Salt Lake City to Washington Dulles Airport, look for departures on Wednesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Washington Dulles Airport, Tuesday is the cheapest day to fly and Sunday is the most expensive.

What is the cheapest month to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Salt Lake City to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Salt Lake City to Washington, D.C. Dulles Intl Airport is May, where tickets cost $422 (return) on average. On the other hand, the most expensive months are February and November, where the average cost of round-trip tickets is $658 and $656 respectively.

Can I save money by flying with a layover from Salt Lake City to Washington, D.C. Dulles Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $789, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Salt Lake City to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Salt Lake City to Washington, D.C. Dulles Intl Airport, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 10 weeks before departure.

Good to know

Low seasonJanuary
High seasonMay
Cheapest flight$105
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly and prices are also 24% lower on average.
Flight from Salt Lake City to Washington Dulles Airport

When to book flights from Salt Lake City to Dulles Intl

Are your dates flexible? Find out the best times to travel from Salt Lake City to Dulles Intl 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 Salt Lake City to Washington Dulles Airport flights

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

    In the last 3 days, the lowest price for a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport was $105 for a one-way ticket and $198 for a round-trip.

  • Do I need a passport to fly between Salt Lake City and Washington Dulles Airport?

    No

  • Which airlines offer Wi-Fi service onboard planes from Salt Lake City to Washington Dulles Airport?

    All the following airlines offer inflight Wi-Fi service on the Salt Lake City to Washington Dulles Airport flight route: Delta, American Airlines, JetBlue, Virgin Atlantic, WestJet, Alaska Airlines, and Air France.

  • Which aircraft models fly most regularly from Salt Lake City to Washington Dulles Airport?

    The Boeing 737-800 is the aircraft model that flies most regularly on the Salt Lake City to Washington Dulles Airport flight route.

  • Which airline alliances offer flights from Salt Lake City to Washington Dulles Airport?

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

  • On which days can I fly direct from Salt Lake City to Washington Dulles Airport?

    There are nonstop flights from Salt Lake City to Washington Dulles Airport on a daily basis.

  • Which is the best airline for flights from Salt Lake City to Washington, D.C., Delta or Southwest?

    The two airlines most popular with KAYAK users for flights from Salt Lake City to Washington, D.C. are Delta and Southwest. With an average price for the route of $596 and an overall rating of 8.0, Delta is the most popular choice. Southwest is also a great choice for the route, with an average price of $518 and an overall rating of 8.0.

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

    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 Salt Lake City to Washington Dulles Airport.

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

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

    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 Washington Dulles Airport with an airline and back to Salt Lake City with another airline. Booking your flights between Salt Lake City and IAD 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 Salt Lake City to Washington Dulles Airport?

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

KAYAK’s top tips for finding a cheap flight from Salt Lake City to Washington, D.C. Dulles Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $223 or less one-way and $324 or less round-trip.

Prefer to fly direct from Salt Lake City to Washington Dulles Airport?

Find which airlines fly direct from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Salt Lake City to Washington, D.C. Dulles Intl

Monday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Tuesday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Wednesday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Thursday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Friday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Saturday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Sunday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Salt Lake City

Monday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Tuesday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Wednesday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Thursday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Friday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Saturday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

Sunday

Delta, Lufthansa, United Airlines, +2 more

Delta, Lufthansa, +3 more

See more direct flights
See more direct flights

Top 5 airlines serving from Salt Lake City to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Salt Lake City to Washington, D.C.. 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 Salt Lake City to Dulles Intl? 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.
8.0
SouthwestOverall score based on 4294 reviews
8.2Boarding
8.6Crew
8.0Comfort
7.6Entertainment
7.1Food
Airline reviews

It is southwest seat was ok. Not the most comfortable seat

8.0 ExcellentJohn, Apr 2025PVD - FLL
Read more Southwest reviews

It is southwest seat was ok. Not the most comfortable seat

I’ve always loved Southwest. No issues at all. I was flying standby and the gate agent was extremely friendly and helpful. Boarding was smooth and I was able to get a window seat in the emergency exit row. Crew was fantastic! They were very professional and accommodating. We had to divert from our destination due to weather but the flight crew kept everyone at ease and informed us of all pertinent information. Excellent flight

The price of the tickets isn't matching the flight experience. No matter how long the flight is, you're only getting pretzels. The flight attendants looked unkept and over it.

Plz don't take away free bags and free seating

The seats were a bit cramped and worn, but otherwise okay.

I would have liked to arrive on time - not 5 hours late!

After a 3 hour layover in Denver my flight was delayed over 5 hours! No explanation; no assistance; no offer to provide compensation; no one at Southwest was willing to offer any assistance. 8 hours in the Denver airport - ridiculous!

It was a perfect flight in all aspects! Both legs!

Only one drink pass through the cabin for a 4 hour flight. Quite rough and bumpy landing.

Boarding process, crew were good. But the seats were so uncomfortable that was all I could focus on. I literally had to sit forward so that all 3 of us could fit in row. I will try to avoid Southwest in the future for any flights over 60 minutes.

Delta is my preferred airline. I've traveled with them for years. On time in most cases, good communication, easy to use app. Most planes are pretty nice. I was on a CRJ 700/900 however, which was pretty badly aged inside and needed a refresh. No infotainment, unreliable wifi, best to download before boarding or bring a book. Food choices are really just snacks on this flight, nice variety but about what you'd expect. Great staff and prompt in departure and early arrival too. Overall quite satisfied.

Crew was friendly Love the entertainment in the seat head rest.

Delta flight was on time, seats were comfortable, and crew was nice.

This had nothing to do with Delta… The flights were on time and flawless. The service was excellent. We purchased seats in (aisle/middle) comfort plus since this was a cross country flight. Unfortunately, the woman seated at the window was 300+ pounds and, as might be expected, covered up about a third of the middle seat also. there was absolutely nothing that Delta could have done about that… I just don’t know what the answer should be. If you purchase a seat, you should should be able to use the entire seat and not just the portion that someone else is not sitting/oozing in. Disappointing…there should be something that could be done….I'm just not sure what solution could be.

Delayed take-off. Very small plane so very scary with lots of bumps during the flight. Would never fly Delta on short flights in small 80 seaters plane again! Felt relieved when landed.

The worst part was I was NOT allowed in the lounge even though I was holding a first class ticket and have a premium American Express card. I have flown Business or First Class with many airlines. Delta is the ONLY one who does not extend this courtesy to anyone except people who hold the very expensive American Express card. As a result, I won’t fly Delta if I have any other choice.

A little bumpy ride . No food was being provided due the the turbulence. That was ok it was a short flight to my standards.

Simply outstanding. Their new lounge for Delta One customers is a cut above the rest.

The Dekta Rep that checked us in was great. She's very personable, pleasant, and can tell she enjoys her job.

The plane was old with small storage areas that had problems closing/latching and not enough storage for everyone, and worn, damaged seats. Service was great but feel a little unsafe on such well used planes.

Mostly the experience was good except for the flight changes made by UA which meant longer layover in DC

Terrible. First of all we were delayed 4 3/4 hours departing Honolulu. As we had to leave our condo and the rental car had to be returned we had to go to the airport. Even though we had a business class boarding pass to Washington, since we did not have business class to Montreal we could not access the lounge without paying a $59 fee each. This does not make sense to us. Since we could not meet our original connection United booked us to Montreal via New York LaGuardia on Air Canada. In Washington a further delay got us into LaGuardia too late to make our connection to Montreal so we were booked on another Air Canada flight 3 hours later. We were originally scheduled to arrive in Montreal at 10:40 and arrived at 19:55. A totally exhausting day, United did not offer a meal voucher or any type of compensation. Air Canada did give us a digital meal voucher. The food in United business class is poor among all meals offered. The pods look nice but are not that confortable. Overall would not fly on United again.

Change cabin crew assisting business class. Not taking care, ignoring requests and calls. Never had such an experience in business class.

United left one of our bags back in SFO but that’s not my real complaint. The complaint is how it all went down. So we checked in the day before online and were told we could use the quick drop for luggage. So the next day I used baggage quick drop curbside at SFO. The agent mistakenly didn't tag my bag as he put my bag on the conveyor belt untagged. We immediately alerted him he had not tagged the bag. I walked with him to the baggage service office to find my bag and tag it. We waited outside the office for 10 mins. He came out and said everything was ok and the bag was going to be tagged and on my flight. We received a text that one of our bags was on the flight but the other was not. I alerted my first class flight attendant immediately upon boarding the flight. She was helpful and said she’d get it sorted out right away. She called over the gate agent. The gate agent used my bag number and looked over information on her device. She said my bag was on the flight. The flight attendant was standing with her, looking at the device, and also said “yep it’s on the flight”. During the flight the flight attendant made reference to how reassuring it must feel knowing the bag was on the flight. Upon arriving to IAD we received a text that my bag was not on my flight. The text said my bag would arrive to my final destination LIS 24 hrs late. I understand that mistakes happen. I was totally ok with my bag mistakenly not getting tagged at the quick drop. I was fine with walking down to baggage services to tag my bag. But, what I am not ok with is that the United staff said they fixed the mistake two different times, assuring me twice that my bag would be/was on the plane…and it wasn’t. I expected better attention by the employees, for them to do what they said they were going to do. We also spent extra money to upgrade our seats to first class, including the entire return leg from Lisbon to San Francisco because we wanted a smoother and more relaxing travel experience. Our money was not well spent. We will not be using United for travel going forward.

The flight was delayed, it took longer than anticipated because of weather, and they broke my luggage.

Horrifying! And I am almost 2 million miles with United. Late by 3 1/2 hours. Worst: after two hours on the plane waiting, they decided that one of the tires had been damaged and then decided to change it. Another hour and a half to change the tire!!!!! NO EXCUSE FOR THIS. The crew didn't even offer a glass of water until we had been on the plane for FIVE hours. This is the worst airline in the world. I'm simply stuck because they fly on the only routes I need.

Gate got changed about 4 times. Very confusing and very crowded. If you don’t have wifi to help get updates, you can be in deep trouble.

Attendants zipped through cabin so fast hardly anyone got the water they told us we could have in the short flight. Nothing else was offered.

Sucks ! All three flights I was on this trip were delayed.

The flight attendants were unhelpful. It was a packed flight, and usually a flight attendant would help find a spot in the bin for your carry on or shift things around. Neither made any effort to do so. Also, I had to then check my bag. I was told it would be on the carousel in YYZ, but it came up on the jetway. So lucky I saw others standing around for their bags. I would have walked straight past this and on to the carousel. They could have at least told me that they had given me wrong information. Very unsatisfactory.

The boarding crew was incredibly helpful getting me on an earlier flight

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

Flight delayed on both ends - have a gate ready at DCA, don't make us sit for 30min after being late to take off as well.

AA can't control the weather. But the airplane was hot and stuffy while stuck on the runway with a broken entertainment system.

very bare bones flight no entertainment screen, download shows prior to boarding to watch on phone or tablet.

It was good. It’s been a long time since my wife and I fly any where and things have changed. Our trip was to see our new grandson. We fly economy and that was not good for my bad back. It was a quick flight but uncomfortable.

Service in first class no longer exists on American Airlines .

It went up and down at the right time and place. I’m happy with that outcome.

Flight was delayed by 11 hours. Flight agent finally had to rebook us, but did not rebook fully correctly. We had to pay out of pocket to get to the hotel they booked us and couldn’t check in the next day online because the next day’s agent said they didn’t complete the process the night before.

The flight got canceled last minute with no explanation or refund, I had to rebook for a different day

The reps working at the airport counter were dumber than a second coat of paint.

My costume jewelry was stolen out of my bag. Got to airport and my bag weighed 45 pounds- 5 pounds over cost me $100 Long lines in tier one. No entertainment No WiFi no free drinks or snacks

Not very good. Paid in excess of $400 for assigned seating for my family and that was not provided. I want that money back.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

The seats were awful, hard plastic covered in sheet vinyl. The airline tries to scam you into paying extra to get seat together when the flight wasn’t full. They were going to separate a family with young children but my wife who had a row to herself gave up her seat so the young mom could be with her young boys. I’m never giving this airline my money again.

It was a short flight so no food or entertainment….

Seats are uncomfortable but price is good. Guess I can put up with misery for four hours.

I’ve never traveled on Frontier before. If you want basic, no frills, friendly service at great prices then give them a fly!

Cancelled and declined to find alternatives Earlier flight is 2 days later Sent the cancellation notification very late, wish I knew earlier would have stayed to watch the Miami open final game Very disappointing service

The worst flight of my life. Never will I fly frontier again

Everything you need to know for your flight from Salt Lake City to Dulles Intl

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