Dulles Intl

$143+ 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 3/16. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — IAD
Feb 25 — Mar 41
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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 Tuesday or Saturday and return on a Wednesday

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 January 26, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Wed 3/1111:17 am
SLC
-
IAD
1 stop27h 45m
Frontier
Tue 3/177:00 am
IAD
-
SLC
2 stops19h 14m
Frontier
Deal found 1/25$247
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Fri 2/279:59 pm
SLC
-
IAD
2 stops9h 35m
Frontier
Thu 3/56:52 pm
IAD
-
SLC
1 stop14h 51m
Frontier
Deal found 1/25$260
This Expedia deal was found by Cheapflights users on 1/23. 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 5/711:10 am
SLC
-
IAD
1 stop10h 59m
Multiple Airlines
Thu 5/148:09 am
IAD
-
SLC
1 stop14h 20m
Multiple Airlines
Deal found 1/23$261
This Delta deal was found by Cheapflights users on 1/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/195:55 pm
SLC
-
IAD
Nonstop3h 51m
Delta
Sun 2/227:05 am
IAD
-
SLC
Nonstop4h 57m
Delta
Deal found 1/24$269
This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:30 am
SLC
-
IAD
1 stop6h 35m
United Airlines
Mon 3/95:55 pm
IAD
-
SLC
Nonstop5h 04m
United Airlines
Deal found 1/24$275
This Alaska Airlines deal was found by Cheapflights users on 1/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/117:08 am
SLC
-
IAD
1 stop8h 19m
Alaska Airlines
Tue 3/177:05 am
IAD
-
SLC
1 stop9h 21m
Alaska Airlines
Deal found 1/24$277
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/256:20 am
SLC
-
IAD
1 stop9h 00m
Alaska Airlines
Sun 3/17:05 am
IAD
-
SLC
1 stop9h 21m
Alaska Airlines
Deal found 1/26$283
This United Airlines deal was found by Cheapflights users on 1/24. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/71:04 pm
SLC
-
IAD
1 stop7h 32m
United Airlines
Tue 3/104:00 pm
IAD
-
SLC
1 stop6h 57m
United Airlines
Deal found 1/24$285
This United Airlines deal was found by Cheapflights users on 1/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/1011:40 pm
SLC
-
IAD
Nonstop3h 59m
United Airlines
Sat 3/145:55 pm
IAD
-
SLC
Nonstop5h 06m
United Airlines
Deal found 1/26$288
This Alaska Airlines deal was found by Cheapflights users on 1/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:10 am
SLC
-
IAD
1 stop10h 59m
Alaska Airlines
Sun 4/267:10 am
IAD
-
SLC
1 stop9h 31m
Alaska Airlines
Deal found 1/25$289
This Kiwi.com deal was found by Cheapflights users on 1/25. 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.
Sat 2/284:20 pm
SLC
-
IAD
2 stops16h 10m
Frontier
Thu 3/56:52 pm
IAD
-
SLC
1 stop14h 51m
Frontier
Deal found 1/25$292

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 January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$247
(Kiwi.com)

One-way from

$143
(Kiwi.com)

Popular in

February

Cheapest in

September

Average price

$359

Good round-trip deal

$304 or less

Good one-way deal

$224 or less
Provider with most accurate pricing for Salt Lake City-Washington, D.C. Dulles Intl flight deals.
Provider most trusted by Cheapflights users for Salt Lake City-Washington, D.C. Dulles Intl flights.
From Salt Lake City to Washington, D.C. Dulles Intl
One-way flight from Salt Lake City to Washington, D.C. Dulles Intl
Highest demand for flights based on searches. 17% potential increase in price ($89 potential increase over avg. RT price).
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
Average for round-trip flights in January 2026
Price to beat on a round-trip flight from Salt Lake City to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Salt Lake City to Washington, D.C. Dulles Intl.

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 January 26, 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

Salt Lake City

Fly to

Dulles Intl

Route

Depart

Return

Price

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/26

5:55 pm-11:46 pm

Nonstop3h 51m

Washington, D.C. Dulles Intl

Mon 3/2

7:05 am-10:02 am

Nonstop4h 57m

$269

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 3/11

7:08 am-5:27 pm

1 stop8h 19m

Washington, D.C. Dulles Intl

Tue 3/17

7:05 am-2:26 pm

1 stop9h 21m

$277

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 3/6

11:40 pm-5:39 am

Nonstop3h 59m

Washington, D.C. Dulles Intl

Tue 3/10

2:12 pm-8:57 pm

1 stop8h 45m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 2/18

6:00 am-4:28 pm

1 stop8h 28m

Washington, D.C. Dulles Intl

Sun 2/22

7:05 am-10:02 am

Nonstop4h 57m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 4/15

6:00 am-4:15 pm

1 stop8h 15m

Washington, D.C. Dulles Intl

Sun 4/19

7:20 am-10:04 am

Nonstop4h 44m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 3/3

5:55 pm-11:46 pm

Nonstop3h 51m

Washington, D.C. Dulles Intl

Tue 3/10

2:15 pm-9:59 pm

1 stop9h 44m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 4/24

3:37 pm-5:50 am

1 stop12h 13m

Washington, D.C. Dulles Intl

Tue 4/28

9:00 am-7:37 pm

1 stop12h 37m

$283

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 7/2

8:00 am-4:01 pm

1 stop6h 01m

Washington, D.C. Dulles Intl

Thu 7/9

6:20 am-11:37 am

1 stop7h 17m

$289

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 4/23

11:10 am-12:09 am

1 stop10h 59m

Washington, D.C. Dulles Intl

Mon 4/27

7:10 am-2:41 pm

1 stop9h 31m

$289

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/19

2:05 pm-11:55 pm

1 stop7h 50m

Washington, D.C. Dulles Intl

Mon 2/23

10:08 am-5:17 pm

1 stop9h 09m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/24

Showing 1-10 of 19 results
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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 January.
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 January 23, 2026.

Booking 15 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 June is currently the most expensive (average of $279). 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 January 26, 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 28% 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 January 24, 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.

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 January 26, 2026.
Get a feel of what it's like to fly with Southwest, Delta, and United 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.

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Boarding

8.1

Entertainment

7.5

Food

7.0

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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 3h 51m. Fly via Delta or Alaska Airlines 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 $150. 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 64% 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 Frontier ($89), Southwest ($144), and United Airlines ($186).

  • 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 Korean Air (96%), Aeromexico (96%) or Delta (93%) 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 $398, our data shows the cheapest flight currently is $168. When looking at the most popular route, (Salt Lake City - Washington, D.C. Dulles Intl), you can expect to pay $269 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 June is currently the most expensive (average of $279). 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
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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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 January 26, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$150Average$187FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$269Average$380FlexibilityNo cancel feeOn-time69%
DeltaCheapest$269Average$384FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$288Average$407FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$288Average$416FlexibilityNo cancel feeOn-time63%

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