Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Salt Lake City to Washington, D.C. from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Salt Lake City to Washington, D.C. departing on 2/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Salt Lake City to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
9:59 pm - 9:34 am
SLC
-
IAD
33h 35m
2 stops
Frontier Logo
6:52 pm - 7:43 am
IAD
-
SLC
14h 51m
1 stop
$251Frontier
Thu, Feb 26 - Thu, Mar 5
Frontier Logo
8:01 pm - 10:33 am
SLC
-
IAD
12h 32m
2 stops
Frontier Logo
7:20 pm - 8:31 pm
IAD
-
SLC
27h 11m
1 stop
$254Frontier
Wed, Feb 18 - Sun, Feb 22
Frontier Logo
3:46 pm - 12:36 am
SLC
-
IAD
6h 50m
1 stop
Frontier Logo
6:15 am - 2:51 pm
IAD
-
SLC
10h 36m
1 stop
$265Frontier
Wed, Apr 1 - Fri, Apr 10
Delta Logo
5:55 pm - 11:46 pm
SLC
-
IAD
3h 51mnonstop
Delta Logo
7:05 am - 10:02 am
IAD
-
SLC
4h 57mnonstop
$269Delta
Thu, Feb 19 - Sun, Feb 22
Frontier Logo
2:13 pm - 7:20 am
SLC
-
IAD
15h 07m
2 stops
Frontier Logo
7:20 pm - 8:31 pm
IAD
-
SLC
27h 11m
1 stop
$270Frontier
Thu, Feb 19 - Sun, Feb 22
United Airlines Logo
7:30 am - 4:05 pm
SLC
-
IAD
6h 35m
1 stop
United Airlines Logo
5:55 pm - 8:59 pm
IAD
-
SLC
5h 04mnonstop
$275United Airlines
Wed, Mar 4 - Mon, Mar 9
Alaska Airlines Logo
6:20 am - 5:20 pm
SLC
-
IAD
9h 00m
1 stop
Alaska Airlines Logo
7:05 am - 2:26 pm
IAD
-
SLC
9h 21m
1 stop
$277Alaska Airlines
Tue, Feb 24 - Tue, Mar 3
Delta Logo
6:00 am - 4:28 pm
SLC
-
IAD
8h 28m
1 stop
Delta Logo
7:05 am - 10:02 am
IAD
-
SLC
4h 57mnonstop
$279Delta
Wed, Feb 18 - Sun, Feb 22
Alaska Airlines Logo
6:20 am - 5:20 pm
SLC
-
IAD
9h 00m
1 stop
Alaska Airlines Logo
7:05 am - 2:26 pm
IAD
-
SLC
9h 21m
1 stop
$283Alaska Airlines
Wed, Feb 25 - Sat, Feb 28
United Airlines Logo
7:30 am - 4:05 pm
SLC
-
IAD
6h 35m
1 stop
United Airlines Logo
6:03 am - 12:17 pm
IAD
-
SLC
8h 14m
1 stop
$284United Airlines
Sat, Feb 21 - Wed, Mar 4

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

Our best American Airlines deals on Salt Lake City to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Feb 25
SLC11:07 pmSalt Lake City
7h 41m
1 stop
IAD8:48 amWashington, D.C. Dulles Intl
Feb 28
IAD5:00 amWashington, D.C. Dulles Intl
11h 28m
2 stops
SLC2:28 pmSalt Lake City
$294
American Airlines
Feb 25
SLC5:26 amSalt Lake City
13h 04m
2 stops
IAD8:30 pmWashington, D.C. Dulles Intl
Feb 28
IAD9:18 amWashington, D.C. Dulles Intl
12h 39m
2 stops
SLC7:57 pmSalt Lake City
$300
American Airlines
Feb 21
SLC5:26 amSalt Lake City
13h 04m
2 stops
IAD8:30 pmWashington, D.C. Dulles Intl
Mar 4
IAD11:30 amWashington, D.C. Dulles Intl
12h 32m
2 stops
SLC10:02 pmSalt Lake City
$309

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

Our best Southwest deals on Salt Lake City to Washington, D.C. Dulles Intl Airport flight tickets
Southwest
Feb 19
SLC1:20 pmSalt Lake City
7h 20m
1 stop
IAD10:40 pmWashington, D.C. Dulles Intl
Feb 22
IAD3:25 pmWashington, D.C. Dulles Intl
10h 30m
1 stop
SLC11:55 pmSalt Lake City
$323
Southwest
Feb 10
SLC11:30 amSalt Lake City
8h 25m
2 stops
IAD9:55 pmWashington, D.C. Dulles Intl
Mar 9
IAD5:50 amWashington, D.C. Dulles Intl
6h 15m
1 stop
SLC10:05 amSalt Lake City
$329
Southwest
Feb 24
SLC11:30 amSalt Lake City
8h 25m
2 stops
IAD9:55 pmWashington, D.C. Dulles Intl
Mar 3
IAD9:05 amWashington, D.C. Dulles Intl
12h 00m
2 stops
SLC7:05 pmSalt Lake City
$333

momondo Fare Finder

 
Customize your flight search to find flights from Salt Lake City to Washington, D.C. Dulles Intl Airport 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, momondo users made 832,500 searches. Data last updated January 29, 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

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/26

9:59 pm-9:34 am

2 stops33h 35m

Washington, D.C. Dulles Intl

Thu 3/5

6:52 pm-7:43 am

1 stop14h 51m

$251

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 2/18

8:01 pm-10:33 am

2 stops12h 32m

Washington, D.C. Dulles Intl

Sun 2/22

7:20 pm-8:31 pm

1 stop27h 11m

$254

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 4/1

3:46 pm-12:36 am

1 stop6h 50m

Washington, D.C. Dulles Intl

Fri 4/10

6:15 am-2:51 pm

1 stop10h 36m

$265

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/19

5:55 pm-11:46 pm

Nonstop3h 51m

Washington, D.C. Dulles Intl

Sun 2/22

7:05 am-10:02 am

Nonstop4h 57m

$269

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Thu 2/19

2:13 pm-7:20 am

2 stops15h 07m

Washington, D.C. Dulles Intl

Sun 2/22

7:20 pm-8:31 pm

1 stop27h 11m

$270

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Wed 3/4

7:30 am-4:05 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Mon 3/9

5:55 pm-8:59 pm

Nonstop5h 04m

$275

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Tue 2/24

6:20 am-5:20 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

Tue 3/3

7:05 am-2:26 pm

1 stop9h 21m

$277

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 2/25

6:20 am-5:20 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

Sat 2/28

7:05 am-2:26 pm

1 stop9h 21m

$283

Salt Lake CityWashington, D.C.

SLC - IAD

SLCIAD

Salt Lake City

Sat 2/21

7:30 am-4:05 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Wed 3/4

6:03 am-12:17 pm

1 stop8h 14m

$284

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Salt Lake City to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

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

In general, September is the cheapest month to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $318. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $328.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Tuesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $433. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Salt Lake City to Washington, D.C. Dulles Intl Airport for around $580.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Salt Lake City in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $389 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $541 on average. Flights to Washington, D.C. Dulles Intl Airport from Salt Lake City in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Fly from Salt Lake City to Washington, D.C. Dulles Intl for the best Salt Lake City - Washington, D.C. Dulles Intl flight prices

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Salt Lake City when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $422 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Salt Lake City for as low as $327 on momondo.

What cabin class options are available on Salt Lake City to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Salt Lake City to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Salt Lake City to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Salt Lake City to Washington, D.C. Dulles Intl Airport.

How have Salt Lake City to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of January 2026, prices for Salt Lake City to Washington, D.C. Dulles Intl Airport flights are approximately 8% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Salt Lake City to Washington, D.C. Dulles Intl Airport (SLC to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Salt Lake City to Washington, D.C. Dulles Intl Airport

Best Price Found

$224

Fastest flight time

3h 50m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Salt Lake City in the past 72 hours is $224. The best round-trip flight deal from Salt Lake City to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $304.
The fastest flight from Salt Lake City to Washington, D.C. Dulles Intl Airport takes 3h 50m
Direct flights go from Salt Lake City to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Salt Lake City to Washington, D.C. Dulles Intl by plane?

    There are 1817.6 mi between Salt Lake City and Washington, D.C. Dulles Intl. Flights usually cover this in 3h 50m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport were last updated today.

  • How many operators does momondo search for flights from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents you'll need for your trip to Washington, D.C. Dulles Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Salt Lake City to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Salt Lake City to Washington, D.C. Dulles Intl Airport?

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

Compare and see reviews for airlines that fly from Salt Lake City to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $150Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
United AirlinesPriceFrom $269Free CancellationRating
7.4
9,215 reviews
Search United Airlines flights
DeltaPriceFrom $269Free CancellationRating
7.9
8,128 reviews
Search Delta flights
American AirlinesPriceFrom $288Free CancellationRating
7.2
11,205 reviews
Search American Airlines flights
SouthwestPriceFrom $288Free CancellationRating
8.0
4,267 reviews
Search Southwest flights

  • Delta Flights From Salt Lake City to Washington, D.C. Dulles Intl Airport

    Delta operates around 7 flights from Salt Lake City to Washington, D.C. Dulles Intl Airport every week. The average price of these flights found in the last 72 hours has been $384, but momondo users have found Delta deals from Salt Lake City to Washington, D.C. Dulles Intl Airport from as low as $269 round-trip. Delta has been scored 7.9/10 in 8,128 reviews.

  • United Airlines Flights From Salt Lake City to Washington, D.C. Dulles Intl Airport

    United Airlines (7.4/10 from 9,215 reviews) operates around 9 flights from Salt Lake City to Washington, D.C. Dulles Intl Airport in any given week. The average United Airlines airfare for this route is around $380, with deals from around $269 rare but found on momondo. Referenced prices are for round-trip Salt Lake City to Washington, D.C. Dulles Intl Airport flight searches in the last 72 hours.

Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Linthicum Heights

Why use momondo?

Why should I use momondo to find a flight deal from Salt Lake City to Washington, D.C.?

It is quick and easy to find Salt Lake City to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Salt Lake City to Washington, D.C. with flexible booking policies on momondo?

Flights from Salt Lake City to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Salt Lake City to Washington, D.C.?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Salt Lake City.

I’m not ready to book a flight from Salt Lake City to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from Salt Lake City. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 2/28
Sat 3/7
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Washington, D.C.