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 56% less than the average price by searching for these airlines.

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

The most flights from SLC to IAD are scheduled on a Monday (3 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

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.

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).

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 $479, our data shows the cheapest flight currently is $189. When looking at the most popular route, (Salt Lake City - Washington, D.C. Dulles Intl), you can expect to pay $230 for that flight.

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 United Airlines (95%), Lufthansa (95%) or Korean Air (87%) as they are the most reliable in getting you off to your destination on time.

What are the most popular airlines that fly from Salt Lake City to Washington, D.C. Dulles Intl Airport?

United Airlines, Delta and Southwest are the most popular airlines when flying from Salt Lake City to Washington, D.C. Dulles Intl Airport.

Most accurate provider : When it comes to deals on Salt Lake City-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Salt Lake City-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

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.

$122+ Flights from Salt Lake City to Washington, D.C. Dulles Intl Airport

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1. Tell us where you want to go

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2. Select your favorite providers

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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 July, 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 December 12, 2025.

Fri 12/2611:59 pmSLC - IAD

Nonstop3h 53mUnited Airlines

Mon 1/55:55 pmIAD - SLC

Nonstop5h 02mUnited Airlines

Deal found 12/10

$304

Mon 12/297:15 amSLC - IAD

1 stop8h 15mUnited Airlines

Thu 1/15:20 pmIAD - SLC

1 stop6h 55mUnited Airlines

Deal found 12/11

$324

Mon 12/297:15 amSLC - IAD

1 stop8h 15mUnited Airlines

Mon 1/55:55 pmIAD - SLC

Nonstop5h 02mUnited Airlines

Deal found 12/11

$338

Tue 12/2310:25 pmSLC - IAD

2 stops41h 51mFrontier

Thu 1/15:35 amIAD - SLC

2 stops41h 58mFrontier

Deal found 12/11

$349

Fri 12/2611:14 pmSLC - IAD

1 stop7h 28mAmerican Airlines

Fri 1/21:57 pmIAD - SLC

1 stop9h 49mAmerican Airlines

Deal found 12/11

$358

Fri 12/1911:59 pmSLC - IAD

Nonstop3h 53mUnited Airlines

Thu 1/16:08 amIAD - SLC

1 stop10h 12mUnited Airlines

Deal found 12/10

$370

Sat 12/2011:59 pmSLC - IAD

Nonstop3h 53mUnited Airlines

Thu 1/15:20 pmIAD - SLC

1 stop6h 55mUnited Airlines

Deal found 12/10

$374

Best flights from Salt Lake City to Dulles Intl
Discover carefully curated flight deals from Salt Lake City to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Wed 1/75:55 pmSLC - IAD

Nonstop3h 53mDelta

Mon 1/125:26 pmIAD - SLC

1 stop6h 40mDelta

Deal found 12/11

$279

Tue 1/61:47 pmSLC - IAD

1 stop9h 12mUnited Airlines

Mon 1/125:44 pmIAD - SLC

Nonstop5h 02mUnited Airlines

Deal found 12/10

$279

Thu 2/266:20 amSLC - IAD

1 stop9h 00mAlaska Airlines

Mon 3/27:05 amIAD - SLC

1 stop18h 53mAlaska Airlines

Deal found 12/11

$285

Wed 1/711:59 amSLC - IAD

1 stop7h 18mAmerican Airlines

Mon 1/121:08 pmIAD - SLC

1 stop9h 18mAmerican Airlines

Deal found 12/11

$289

Fri 2/207:30 amSLC - IAD

1 stop6h 35mUnited Airlines

Mon 2/235:17 pmIAD - SLC

1 stop7h 22mUnited Airlines

Deal found 12/10

$284

Thu 1/83:40 pmSLC - IAD

1 stop22h 46mAlaska Airlines

Mon 1/126:04 pmIAD - SLC

1 stop28h 54mAlaska Airlines

Deal found 12/11

$285

Thu 1/155:55 pmSLC - IAD

Nonstop3h 53mDelta

Sun 1/187:05 amIAD - SLC

Nonstop4h 57mDelta

Deal found 12/10

$289

Tue 1/65:55 pmSLC - IAD

Nonstop3h 53mDelta

Wed 1/147:05 amIAD - SLC

Nonstop4h 57mDelta

Deal found 12/11

$289

Tue 1/67:18 pmSLC - IAD

1 stop19h 46mAlaska Airlines

Mon 1/126:04 pmIAD - SLC

1 stop22h 38mAlaska Airlines

Deal found 12/10

$289

Thu 2/265:55 pmSLC - IAD

Nonstop3h 51mDelta

Mon 3/27:05 amIAD - SLC

Nonstop4h 57mDelta

Deal found 12/10

$289

Last-minute flights from Salt Lake City to Dulles Intl
Discover last-minute flight deals from Salt Lake City to Dulles Intl. Data last updated December 12, 2025 and is based on user searches.

Tue 1/61:47 pmSLC - IAD

1 stop9h 12mUnited Airlines

Thu 1/158:15 amIAD - SLC

1 stop9h 21mUnited Airlines

Deal found 12/10

$289

Thu 1/83:29 pmSLC - IAD

2 stops23h 17mFrontier

Thu 1/158:59 pmIAD - SLC

1 stop22h 11mFrontier

Deal found 12/10

$276

Thu 1/86:00 amSLC - IAD

1 stop8h 46mDelta

Wed 1/147:05 amIAD - SLC

Nonstop4h 57mDelta

Deal found 12/9

$279

Thu 1/87:35 amSLC - IAD

1 stop8h 54mUnited Airlines

Thu 1/158:15 amIAD - SLC

1 stop9h 21mUnited Airlines

Deal found 12/10

$284

Thu 1/89:00 amSLC - IAD

1 stop29h 26mAlaska Airlines

Mon 1/126:04 pmIAD - SLC

1 stop22h 38mAlaska Airlines

Deal found 12/9

$285

Thu 1/85:30 amSLC - IAD

1 stop9h 01mAmerican Airlines

Wed 1/147:01 amIAD - SLC

2 stops14h 52mAmerican Airlines

Deal found 12/10

$294

Fri 1/1610:05 amSLC - IAD

Nonstop3h 54mUnited Airlines

Mon 1/195:44 pmIAD - SLC

Nonstop5h 02mUnited Airlines

Deal found 12/9

$269

Thu 1/2211:56 amSLC - IAD

2 stops26h 30mMultiple Airlines

Sun 1/2510:50 amIAD - SLC

1 stop12h 49mMultiple Airlines

Deal found 12/10

$268

Thu 1/2210:05 amSLC - IAD

Nonstop3h 54mUnited Airlines

Sun 1/255:44 pmIAD - SLC

Nonstop5h 02mUnited Airlines

Deal found 12/10

$288

Fri 1/307:14 amSLC - IAD

1 stop7h 50mMultiple Airlines

Sun 2/15:37 pmIAD - SLC

2 stops27h 30mMultiple Airlines

Deal found 12/10

$266

One-way flights from Salt Lake City to Dulles Intl
Search for one-way flight options from Salt Lake City to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated December 12, 2025.

Mon 1/129:40 pmSLC - IAD

3 stops36h 03mMultiple Airlines

Deal found 12/8

$122

Sun 3/16:50 pmSLC - IAD

2 stops17h 52mFrontier

Deal found 12/8

$123

Tue 3/36:41 pmSLC - IAD

2 stops42h 01mFrontier

Deal found 12/8

$125

Tue 2/178:01 pmSLC - IAD

2 stops42h 42mFrontier

Deal found 12/10

$126

Fri 1/99:40 pmSLC - IAD

2 stops35h 48mFrontier

Deal found 12/10

$127

Tue 1/138:40 amSLC - IAD

3 stops25h 03mMultiple Airlines

Deal found 12/10

$129

Wed 3/48:00 amSLC - IAD

2 stops30h 43mFrontier

Deal found 12/10

$130

Wed 1/288:35 amSLC - IAD

3 stops29h 53mMultiple Airlines

Deal found 12/10

$131

Thu 1/89:15 amSLC - IAD

3 stops20h 40mMultiple Airlines

Deal found 12/11

$132

Wed 1/2111:44 amSLC - IAD

3 stops26h 44mMultiple Airlines

Deal found 12/10

$133

Find flight deals from Salt Lake City to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$263 (Expedia)
One-way from	$122 (Kiwi.com)
Popular in	February
Cheapest in	September
Average price	$419
Good round-trip deal	$369 or less
Good one-way deal	$273 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

Highest demand for flights based on searches. 18% potential increase in price ($99 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease ($25 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

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

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

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 1/7

5:55 pm-11:48 pm

Nonstop3h 53m

Washington, D.C. Dulles Intl

Mon 1/12

5:26 pm-10:06 pm

1 stop6h 40m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 1/6

1:47 pm-12:59 am

1 stop9h 12m

Washington, D.C. Dulles Intl

Mon 1/12

5:44 pm-8:46 pm

Nonstop5h 02m

$279

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Fri 2/20

7:30 am-4:05 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Mon 2/23

5:17 pm-10:39 pm

1 stop7h 22m

$284

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/26

6:20 am-5:20 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

Mon 3/2

7:05 am-11:58 pm

1 stop18h 53m

$285

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 1/8

3:40 pm-4:26 pm

1 stop22h 46m

Washington, D.C. Dulles Intl

Mon 1/12

6:04 pm-8:58 pm

1 stop28h 54m

$285

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 1/7

11:59 am-9:17 pm

1 stop7h 18m

Washington, D.C. Dulles Intl

Mon 1/12

1:08 pm-8:26 pm

1 stop9h 18m

$289

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 1/15

5:55 pm-11:48 pm

Nonstop3h 53m

Washington, D.C. Dulles Intl

Sun 1/18

7:05 am-10:02 am

Nonstop4h 57m

$289

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 1/6

5:55 pm-11:48 pm

Nonstop3h 53m

Washington, D.C. Dulles Intl

Wed 1/14

7:05 am-10:02 am

Nonstop4h 57m

$289

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 1/6

7:18 pm-5:04 pm

1 stop19h 46m

Washington, D.C. Dulles Intl

Mon 1/12

6:04 pm-2:42 pm

1 stop22h 38m

$289

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

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 21 results

Compare providers for flights from Salt Lake City to Dulles Intl

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
Trip.com	Price Accuracy2 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Salt Lake City-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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

Prices

Airlines

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

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, January is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $169). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $278). 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?

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 25% 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?

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

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.

IAD

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

Our travel experts

Ramsey Qubein

Expert on SLC and IAD

Reviews of airlines servicing Dulles Intl

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.

Southwest

7.9

Good

4,253 reviews

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

Southwest

7.9

Good

4,253 reviews

Southwest

7.9

Good

4,253 reviews

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

Delta

7.9

Good

8,008 reviews

Southwest

7.9

Good

4,253 reviews

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

United Airlines

7.4

Good

9,095 reviews

Southwest

7.9

Good

4,253 reviews

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

American Airlines

7.2

Good

11,050 reviews

Southwest

7.9

Good

4,253 reviews

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

Frontier

5.8

Fair

3,084 reviews

Southwest

7.9

Good

4,253 reviews

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

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.
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 53m. Fly via Delta, United Airlines, 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 $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 56% 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 ($185).
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 United Airlines (95%), Lufthansa (95%) or Korean Air (87%) 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 $479, our data shows the cheapest flight currently is $189. When looking at the most popular route, (Salt Lake City - Washington, D.C. Dulles Intl), you can expect to pay $230 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, January is the cheapest month in which you can book a flight from Salt Lake City to Washington, D.C. Dulles Intl Airport (average of $169). Flying from Salt Lake City to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $278). 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

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Browse thousands of different options on Cheapflights for your next trip

Top 5 airlines flying from Salt Lake City to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$185	Average$229	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$269	Average$394	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$269	Average$412	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$288	Average$513	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$288	Average$416	FlexibilityNo cancel fee	On-time63%

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$122+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Salt Lake City to Dulles Intl with Cheapflights

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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 July, 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 IntlExplore 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 December 12, 2025.

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 December 12, 2025.

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

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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?

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

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

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

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Cheapflights partnered with top experts to bring you the best recommendations for your Salt Lake City to Washington, D.C. Dulles Intl Airport trip

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Reviews of airlines servicing Dulles Intl

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.

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.

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

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

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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 December 12, 2025.