IAD - SLC

$119 Find Cheap Flights from Washington Dulles Airport to Salt Lake City

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 Salt Lake City departing on 8/9. 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 Salt Lake City

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

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

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

Sat, Aug 16 - Mon, Aug 18
Frontier Logo
12:27 pm - 6:58 pmIAD-SLC
8h 31m1 stop
Frontier Logo
5:03 pm - 6:34 amSLC-IAD
11h 31m1 stop
$248Frontier
Find Deal
Mon, Aug 11 - Thu, Aug 21
Frontier Logo
11:04 am - 6:58 pmIAD-SLC
9h 54m1 stop
Frontier Logo
7:34 pm - 6:30 amSLC-IAD
8h 56m1 stop
$258Frontier
Find Deal
Fri, Aug 22 - Tue, Aug 26
Delta Logo
7:30 am - 10:00 amIAD-SLC
4h 30mnonstop
Delta Logo
5:35 pm - 11:32 pmSLC-IAD
3h 57mnonstop
$271Delta
Find Deal
Thu, Sep 25 - Sat, Sep 27
Delta Logo
5:25 pm - 12:41 amIAD-SLC
9h 16m1 stop
Delta Logo
5:35 pm - 11:33 pmSLC-IAD
3h 58mnonstop
$281Delta
Find Deal
Sat, Oct 18 - Tue, Oct 28
American Airlines Logo
6:34 am - 12:18 pmIAD-SLC
7h 44m1 stop
American Airlines Logo
1:51 pm - 10:51 pmSLC-IAD
7h 00m1 stop
$289American Airlines
Find Deal
Tue, Sep 9 - Thu, Sep 18
United Airlines Logo
5:55 pm - 8:52 pmIAD-SLC
4h 57mnonstop
United Airlines Logo
10:00 am - 4:08 pmSLC-IAD
4h 08mnonstop
$294United Airlines
Find Deal
Wed, Aug 27 - Tue, Sep 2
American Airlines Logo
7:44 am - 4:26 pmIAD-SLC
10h 42m2 stops
American Airlines Logo
11:58 pm - 10:07 amSLC-IAD
8h 09m1 stop
$296American Airlines
Find Deal
Wed, Aug 27 - Sun, Aug 31
United Airlines Logo
5:55 pm - 8:52 pmIAD-SLC
4h 57mnonstop
United Airlines Logo
5:25 am - 1:26 pmSLC-IAD
6h 01m1 stop
$304United Airlines
Find Deal
Fri, Aug 29 - Mon, Sep 1
Southwest Logo
4:30 pm - 11:55 pmIAD-SLC
9h 25m1 stop
Southwest Logo
5:25 am - 1:20 pmSLC-IAD
5h 55m1 stop
$327Southwest
Find Deal
Wed, Sep 3 - Tue, Sep 9
Southwest Logo
6:05 pm - 10:15 pmIAD-SLC
6h 10m1 stop
Southwest Logo
9:10 am - 10:05 pmSLC-IAD
10h 55m2 stops
$336Southwest
Find Deal
Expert advice

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

 
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 onboard connectivity.


Delta's Sky Priority check-in benefits elite status and premium cabin passengers for faster service.

Read more about Deltaby Stefanie Waldek
United Airlines

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


United's Priority Boarding can be purchased to ensure overhead bin space, placing you in Zone 2.

Airports
IAD

For a smooth departure from IAD, plan your route using the airport map to navigate between terminals efficiently.

Read more about IADby Stefanie Waldek
SLC

Use TRAX light rail for a cost-effective 20-minute ride from SLC to downtown Salt Lake City.

Read more about SLCby Harriet Baskas
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
Booking Insights

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

Get data-powered insights and trends into flights from Dulles Intl to Salt Lake City 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 Washington Dulles Airport to Salt Lake City?

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

For Washington Dulles Airport to Salt Lake City, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from Salt Lake City back to Washington Dulles Airport, the best deals are generally found on Tuesday, with Sunday being the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Salt Lake City, 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 Washington, D.C. Dulles Intl Airport to Salt Lake City is July, where tickets cost $359 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $718 and $599 respectively.

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

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.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $978 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Salt Lake City, 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 Washington, D.C. Dulles Intl Airport to Salt Lake City, you should book around 4 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$119
Best time to beat the crowds but there is an average 15% increase in price.
Most popular time to fly and prices are also 31% lower on average.
Flight from Washington Dulles Airport to Salt Lake City

When to book flights from Dulles Intl to Salt Lake City

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

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Salt Lake City was $119 for a one-way ticket and $248 for a round-trip.

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

    A passport is not required to fly from Washington Dulles Airport to Salt Lake City.

  • Which airports will I be using when flying from Washington Dulles Airport to Salt Lake City?

    Washington Dulles Airport and Salt Lake City are both served by 1 main airport. You will leave Washington Dulles Airport from Washington, D.C. Dulles Intl and will be arriving at Salt Lake City.

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

    Delta, Alaska Airlines, Hawaiian Airlines, and American Airlines offer inflight Wi-Fi service on the Washington Dulles Airport to Salt Lake City flight route.

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

    The Boeing 737-900 is the aircraft model that flies most regularly on the Washington Dulles Airport to Salt Lake City flight route.

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

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Salt Lake City are Delta and Southwest. With an average price for the route of $521 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 $525 and an overall rating of 8.0.

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

    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 Salt Lake City.

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

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

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

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $269 or less one-way and $324 or less round-trip.

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

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Washington, D.C. Dulles Intl to Salt Lake City.
Find which airlines fly direct from Washington, D.C. Dulles Intl Airport to Salt Lake City Airport, which days they fly and book direct flights.

Direct departures

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

Monday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

Tuesday

Delta, Korean Air, Lufthansa, +3 more

Delta, Korean Air, +4 more

Wednesday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

Thursday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

Friday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

Saturday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

Sunday

Delta, Korean Air, Lufthansa, +2 more

Delta, Korean Air, +3 more

See more direct flights

Direct returns

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

Monday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Tuesday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Wednesday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Thursday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Friday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Saturday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

Sunday

Delta, KLM, Korean Air, +3 more

Delta, KLM, +4 more

See more direct flights

Reviews of the top 5 airlines serving from Dulles Intl to Salt Lake City

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Salt Lake City. 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 Salt Lake City? 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 4246 reviews
8.6Crew
8.1Boarding
7.0Food
8.0Comfort
7.5Entertainment
Airline reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

2.0 MediocreAnonymous, Jul 2025AUS - RDU
Read more Southwest reviews

southwest just starting charging for luggage. hadnt realized it until it was too late. now out $70 when i couldve bought a carry on if i wouldve known. free bags was one of the only reasons i chose southwest over another airline (the other being no assigned seats, which is apparently also being changed). stupid business decision. wont be flying southwest anymore.

The quality of Southwest Airlines continues to degrade each time I fly with them. If it were not for the free luggage, I would probably choose another airline. Their prices are a little bit competitive, but way too high for the quality of the service. Southwest is not unique in this way. Domestic flight in the United States of America has continued to be a lower and lower quality product. Very sad when you compare the quality of domestic airlines to that of many international airlines around the world.

Very smooth checking in our luggage with a super pleasant SW agent. I enjoyed a fun entertaining movie.

WiFi did not work. For as outrageous as these flights cost, when they’re advertised with certain services/ features they should be in working order

Worst experience I had on Southwest. Still better than most, but the seating was barely tolerable.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was okay. The plane was delayed from earlier in the day, but they kept updating the departure time, sometimes later, sometimes earlier. That was stressful. Once we finally got on and took off, it was fine. I was supposed to have a connection in Chicago to Los Angeles, and the time for so late I was rebooked to arrive in LA 3 hours late. The departure time to Chicago later became early enough to have taken my original connection and arrive earlier but that wasn't an option.

It was one and half hour late... Not sure if any other experience matters.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

For my birthday trip this was my second time ever flying, this trip was the best.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

We had to turn around and head back to Manchester. Problem with a plane engine.

Flight was delayed. Staff at the gate effectively and proactively communicated about the delay.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

They changed our Gate 5 times, and concourse twice. Changed our seats twice.

Severe turbulence. Captain never came on to reassure passengers after things settled down.

My first flight was delayed 5 hours. The 2nd flight was canceled til the next day and the never even tried to compensate for it. Worse I was delayed again on the flight the rebooked me on.

Boarding in Orlando was not good. Giant mob at the gate, should have been lines.

Decent clean onboard experience. Okay discount airline experience. Unfortunately, any customer service interactions are difficult and unhelpful. There is no service. Also, a premium seat only gets you premium boarding if you line up first. Once they start general boarding you must go to the back of the line. Not very premium

baggage clamed had to wait over a hour and half for all people on my flight it was terrible

The ticketing agents were rude but then we had a great gate agent very nice we had to ride a buss out to where the plane was parked but it was in some back corner of the airport when we got to the plane the captain who was great btw was cleaning the plane because the same rude ticketing agent told them they we not contracted to vacuum the plane. The ride to las Vegas was fine We had a connecting flight to Dallas. The flight was fine but when we arrived in Dallas everyone who flew on any frontier airlines the picked up bags from baggage claim D15 had to wait over a hour for their bags to start we arrived at 11:30pm ish to the gate we didn't leave the baggage clamed till 12:50 am very not happy and i used to fly frontier 4 times a week for work in Denver i will not be using them again

I was 2 hr arrive in the airport and 45 min in the line . After take to my turn . The agent tell me I’m later . I can not board . So my vacation was going to the floor . Just for their bad customer service agent in the airline

Frontier Airlines was AWFUL. I was an hour early for my flight and the lady refused to check me in. I had to purchase a whole new ticket with a different airline.

My flight was canceled I was promised a reginf still not received.

Late, terrible communication, horrible planning of passenger seating until the literal last minute. One of the worst flying experiences of my life. Y'all suck

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

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