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Dulles Intl

$125+ Cheap flights from Salt Lake City (SLC) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — IAD
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
1 adult, Economy
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Find cheap flights from Salt Lake City to Dulles Intl with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

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Cheapflights Tip: The best prices from Salt Lake City to Washington, D.C. Dulles Intl are usually found in September or November, booked 52 days in advance, depart on a Friday or Saturday and return on a Tuesday

Cheap flight deals from Salt Lake City to Dulles Intl

Cheapest flights from Salt Lake City to Dulles Intl
Explore the most affordable flight options available from Salt Lake City to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.

This Frontier deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/179:29 pm
SLC
-
IAD
1 stop7h 58m
Frontier
Sun 4/191:26 pm
IAD
-
SLC
1 stop9h 08m
Frontier
Deal found 3/8$211
This Super.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:46 pm
SLC
-
IAD
1 stop6h 50m
Frontier
Mon 4/612:55 pm
IAD
-
SLC
1 stop25h 57m
Frontier
Deal found 3/9$226
This Priceline deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/13:46 pm
SLC
-
IAD
1 stop6h 50m
Frontier
Thu 4/3012:23 pm
IAD
-
SLC
1 stop10h 11m
Frontier
Deal found 3/9$240
This Expedia deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:59 pm
SLC
-
IAD
1 stop9h 08m
Multiple Airlines
Wed 5/67:10 am
IAD
-
SLC
1 stop9h 31m
Multiple Airlines
Deal found 3/9$250
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/134:08 pm
SLC
-
IAD
1 stop11h 32m
Multiple Airlines
Thu 4/2312:20 pm
IAD
-
SLC
1 stop10h 14m
Multiple Airlines
Deal found 3/8$255
This Frontier deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/29:59 pm
SLC
-
IAD
1 stop9h 08m
Frontier
Thu 5/78:09 am
IAD
-
SLC
1 stop14h 20m
Frontier
Deal found 3/8$260
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:59 pm
SLC
-
IAD
1 stop12h 47m
Frontier
Sun 4/191:26 pm
IAD
-
SLC
1 stop9h 08m
Frontier
Deal found 3/6$261
This Frontier deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/299:59 pm
SLC
-
IAD
1 stop11h 36m
Frontier
Thu 5/78:09 am
IAD
-
SLC
1 stop14h 20m
Frontier
Deal found 3/8$281
This Expedia deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 am
SLC
-
IAD
1 stop10h 11m
Multiple Airlines
Sun 4/191:26 pm
IAD
-
SLC
1 stop9h 08m
Multiple Airlines
Deal found 3/5$284
This Kiwi.com deal was found by Cheapflights users on 3/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/59:59 pm
SLC
-
IAD
1 stop31h 28m
Frontier
Sun 5/107:04 pm
IAD
-
SLC
2 stops17h 50m
Frontier
Deal found 3/5$286

Find flight deals from Salt Lake City to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Salt Lake City (SLC) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$211
(Frontier)

One-way from

$125
(Kiwi.com)

Popular in

October

Cheapest in

September

Average price

$387

Good round-trip deal

$304 or less

Good one-way deal

$274 or less
Provider with most accurate pricing for Salt Lake City-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Salt Lake City-Washington, D.C. Dulles Intl flights.
Search Deals
From Salt Lake City to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Salt Lake City to Washington, D.C. Dulles Intl
Search Deals
High demand for flights, 2% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Salt Lake City to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from Salt Lake City to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Salt Lake City to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
Use the filters below to find and compare flights from Salt Lake City to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 4/21

2:22 pm-11:25 pm

1 stop7h 03m

Washington, D.C. Dulles Intl

Wed 4/22

10:10 am-3:22 pm

1 stop7h 12m

$304

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 5/1

2:31 pm-11:25 pm

1 stop6h 54m

Washington, D.C. Dulles Intl

Sun 5/10

6:15 am-11:36 am

1 stop7h 21m

$309

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 4/21

9:20 am-11:40 pm

2 stops12h 20m

Washington, D.C. Dulles Intl

Wed 4/22

4:30 pm-8:40 pm

1 stop6h 10m

$314

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 5/1

11:30 am-12:20 am

2 stops10h 50m

Washington, D.C. Dulles Intl

Sun 5/10

5:50 am-10:05 am

1 stop6h 15m

$314

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 5/1

7:45 am-5:57 pm

1 stop8h 12m

Washington, D.C. Dulles Intl

Mon 5/4

7:20 am-10:04 am

Nonstop4h 44m

$334

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Mon 5/4

6:00 am-4:15 pm

1 stop8h 15m

Washington, D.C. Dulles Intl

Tue 5/12

7:30 am-10:03 am

Nonstop4h 33m

$334

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 5/7

6:30 am-3:50 pm

1 stop7h 20m

Washington, D.C. Dulles Intl

Sun 5/10

5:50 am-1:20 pm

2 stops9h 30m

$334

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Sat 5/9

7:50 am-10:55 pm

2 stops13h 05m

Washington, D.C. Dulles Intl

Sat 5/16

5:50 am-10:10 am

1 stop6h 20m

$339
Quickest round-trip

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Mon 5/4

3:00 pm-11:03 pm

1 stop6h 03m

Washington, D.C. Dulles Intl

Sun 5/10

6:00 am-10:05 am

1 stop6h 05m

$344

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 5/21

11:35 pm-9:16 am

1 stop7h 41m

Washington, D.C. Dulles Intl

Sun 5/24

6:00 am-10:14 am

1 stop6h 14m

$344

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/6

Showing 1-10 of 23 resultsSorted by cheapest first
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Compare providers for flights from Salt Lake City to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Salt Lake City to Dulles Intl in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
Trip.comPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Salt Lake City-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Salt Lake City-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Salt Lake City-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Salt Lake City-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Salt Lake City-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Salt Lake City to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Salt Lake City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Salt Lake City to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Salt Lake City to Dulles Intl. Price data was last updated on March 6, 2026.

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Salt Lake City to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, February is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $178). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $277). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SLC to IAD?

Find hourly flight availability from Salt Lake City to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 10, 2026.

It’s optimal to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 31% on the cost of your flight, compared to a flight in the morning.

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

Use this chart to determine the cheapest time to fly round-trip from Salt Lake City to Dulles Intl. Price data was last updated on February 21, 2026.

Travelers seeking maximum savings on their Salt Lake City to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday at noon when fares are most often at their lowest. Friday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

The best insider tips for Salt Lake City to Washington, D.C. Dulles Intl Airport flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Washington, D.C. Dulles Intl Airport trip
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on SLC and IAD

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated March 10, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from Salt Lake City to Washington, D.C. Dulles Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Southwest
8.0
Very good
4,317 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Delta
7.9
Good
8,276 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
United Airlines
7.4
Good
9,409 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
American Airlines
7.1
Good
11,414 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..
Frontier
5.7
Fair
3,033 reviews
Southwest
8.0
Very good
4,317 reviews

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Boarding

8.1

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

KOA - HNL

pretty smooth and fast service ever, that flight is very helpful each and everyone for price and also fright for free..

Related info for your journey

Find useful and relevant information for your journey from Salt Lake City to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Salt Lake City to Washington, D.C. Dulles Intl?

    Located just 5.7 mi from the city center, Salt Lake City is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Salt Lake City. Booking flights from Salt Lake City (SLC) to Washington, D.C. Dulles Intl should be relatively easy as there are 4 daily outbound flights to Washington, D.C. Dulles Intl from 5 different airlines.

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

    There are many flights that can get you from Salt Lake City to Washington, D.C. Dulles Intl Airport in 7h 03m. Fly via United Airlines or Southwest to get the fastest option. Airlines will cover a distance of 1823 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Salt Lake City to Washington, D.C. Dulles Intl Airport round-trip?

    Cheapflights users have booked flights from Salt Lake City to Washington, D.C. Dulles Intl Airport round-trip from $185. Other airlines that can offer you cheap pricing are United Airlines, from $269, and Delta, from $269. You may be able to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport for 49% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport one-way?

    The cheapest airlines for a one-way flight from Salt Lake City to Washington, D.C. Dulles Intl Airport are Southwest ($144), United Airlines ($186), and Delta ($239).

  • What are the most reliable airlines from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport consider choosing Aeromexico (92%), Korean Air (84%) or United Airlines (83%) as they are the most reliable in getting you off to your destination on time.

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

    While on average a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport is generally $464, our data shows the cheapest flight currently is $128. When looking at the most popular route, (Salt Lake City - Washington, D.C. Dulles Intl), you can expect to pay $250 for that flight.

  • Can I find deals for flights from Salt Lake City to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Salt Lake City to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Salt Lake City to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Salt Lake City to Dulles Intl.

  • Can I find deals for business class flights from Salt Lake City to Dulles Intl?

    Yes. Cheapflights offers flight deals from Salt Lake City to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $178). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $277). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Hyattsville
Hanover
Laurel
Rockville
Upper Marlboro
Linthicum Heights
Fredericksburg
Largo
Bowie
Clinton
Towson
College Park

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Salt Lake City to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Salt Lake City to Reagan-National flights
Salt Lake City to Baltimore flights
Saint George to Dulles Intl flights
Saint George to Baltimore flights

Top 5 airlines flying from Salt Lake City to Dulles Intl

Discover the top 5 airlines that operate flights from Salt Lake City to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$185Average$187FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$269Average$370FlexibilityNo cancel feeOn-time69%
DeltaCheapest$269Average$375FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$384FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$288Average$388FlexibilityNo cancel feeOn-time63%

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