Dulles Intl

$141+ 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 7/12. Fares are subject to change and may not be available on all flights or dates of travel.
SLC — IAD
Jun 17 — Jun 241
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Cheapflights Tip: The best prices from Salt Lake City to Washington, D.C. Dulles Intl are usually found in June or July, booked 37 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap 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 June 12, 2025.

Round-trip from

$265
(Frontier)

One-way from

$141
(FlightHub)

Popular in

February

Cheapest in

June

Average price

$379

Good round-trip deal

$351 or less

Good one-way deal

$273 or less
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. 8% potential increase in price ($45 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Average for round-trip flights in June 2025
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.

Find 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 June 12, 2025.

This Frontier deal was found by Cheapflights users on 6/11. 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 8/97:47 pmSLC - IAD
1 stop12h 20mFrontier
Mon 8/187:30 amIAD - SLC
1 stop11h 08mFrontier
Deal found 6/11$265
This Delta deal was found by Cheapflights users on 6/11. 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.
Sat 10/185:50 pmSLC - IAD
Nonstop3h 59mDelta
Mon 10/277:20 amIAD - SLC
Nonstop4h 55mDelta
Deal found 6/11$269
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/297:00 amSLC - IAD
1 stop7h 16mUnited Airlines
Wed 11/55:55 pmIAD - SLC
Nonstop5h 00mUnited Airlines
Deal found 6/11$275
This Hawaiian Airlines deal was found by Cheapflights users on 6/10. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/287:20 amSLC - IAD
1 stop7h 46mHawaiian Airlines
Sat 11/17:43 amIAD - SLC
1 stop8h 51mHawaiian Airlines
Deal found 6/10$288
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/411:59 pmSLC - IAD
1 stop8h 38mAmerican Airlines
Fri 7/115:39 pmIAD - SLC
1 stop7h 34mAmerican Airlines
Deal found 6/10$290
This Southwest deal was found by Cheapflights users on 6/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/296:35 amSLC - IAD
1 stop7h 10mSouthwest
Tue 9/25:45 amIAD - SLC
1 stop6h 05mSouthwest
Deal found 6/10$293
This Sun Country Air deal was found by Cheapflights users on 6/10. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/275:54 pmSLC - IAD
1 stop15h 55mSun Country Air
Tue 7/112:40 pmIAD - SLC
1 stop6h 44mSun Country Air
Deal found 6/10$325
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 10/1611:05 amSLC - IAD
1 stop11h 18mAlaska Airlines
Tue 10/287:43 amIAD - SLC
1 stop8h 51mAlaska Airlines
Deal found 6/11$343
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/410:54 amSLC - IAD
2 stops31h 59mMultiple Airlines
Fri 7/118:25 amIAD - SLC
3 stops28h 26mMultiple Airlines
Deal found 6/10$432

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 June 12, 2025.
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

Sat 8/9

7:47 pm-10:07 am

1 stop12h 20m

Washington, D.C. Dulles Intl

Mon 8/18

7:30 am-4:38 pm

1 stop11h 08m

$265

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Sat 10/18

5:50 pm-11:49 pm

Nonstop3h 59m

Washington, D.C. Dulles Intl

Mon 10/27

7:20 am-10:15 am

Nonstop4h 55m

$269

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 10/29

7:00 am-4:16 pm

1 stop7h 16m

Washington, D.C. Dulles Intl

Wed 11/5

5:55 pm-8:55 pm

Nonstop5h 00m

$275

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 10/28

7:20 am-5:06 pm

1 stop7h 46m

Washington, D.C. Dulles Intl

Sat 11/1

7:43 am-2:34 pm

1 stop8h 51m

$288

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 7/4

11:59 pm-10:37 am

1 stop8h 38m

Washington, D.C. Dulles Intl

Fri 7/11

5:39 pm-11:13 pm

1 stop7h 34m

$290

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 8/29

6:35 am-3:45 pm

1 stop7h 10m

Washington, D.C. Dulles Intl

Tue 9/2

5:45 am-9:50 am

1 stop6h 05m

$293

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 6/27

5:54 pm-11:49 am

1 stop15h 55m

Washington, D.C. Dulles Intl

Tue 7/1

12:40 pm-5:24 pm

1 stop6h 44m

$325

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 10/16

11:05 am-12:23 am

1 stop11h 18m

Washington, D.C. Dulles Intl

Sat 10/25

6:25 am-1:01 pm

1 stop8h 36m

$343

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 7/4

10:54 am-8:53 pm

2 stops31h 59m

Washington, D.C. Dulles Intl

Fri 7/11

8:25 am-10:51 am

3 stops28h 26m

$432

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Sat 7/12

7:47 pm-10:07 am

1 stop12h 20m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 18 results
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The best insider tips for Salt Lake City to Washington, D.C. Dulles Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-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.
Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Washington, D.C. Dulles Intl Airport trip
Airports
SLC

After security, enjoy local dining at The Plaza, featuring Utah craft beer and Mexican tacos.

Read more about SLCby Ramsey Qubein
IAD

Use the Silver Line Metro for a cheap, 40-minute ride to downtown D.C. from IAD.

Read more about IADby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on SLC and IAD

Ramsey Qubein

Ramsey Qubein

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

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 June 9, 2025.

Booking 37 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, August is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 June 12, 2025.

It’s optimal to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport at noon. By choosing this option you can save up to 30% 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 June 8, 2025.

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.

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

Explore weekly flight availability from Salt Lake City to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from SLC to IAD are scheduled on a Wednesday (5 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (1 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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 June 12, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Salt Lake City to Washington, D.C.. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very good

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 2 daily outbound flights to Washington, D.C. Dulles Intl from 5 different airlines.

  • 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 $265. Other airlines that can offer you cheap pricing are United Airlines, from $269, and Hawaiian Airlines, from $288. You may be able to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport for 48% 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 ($141), Hawaiian Airlines ($144), and Southwest ($145).

  • 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 (100%), WestJet (96%) or United Airlines (84%) 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 $856, our data shows the cheapest flight currently is $188. 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, August is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $349). 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 Salt Lake City?

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$124Average$290FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$196Average$441FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$269Average$492FlexibilityNo cancel feeOn-time69%
DeltaCheapest$277Average$541FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$388Average$533FlexibilityNo cancel feeOn-time63%

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