SLC - IAD

$158 Find Cheap Flights from Salt Lake City to Washington Dulles Airport - Compare and Save

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Everything you should know

Cheapest round-trip
$333
Typical prices: $331-$532
Frontier
Thu 9/27Fri 10/5
SLC - IAD • 1 stop
Cheapest non-stop
$359
Typical prices: $333-$539
Delta
Wed 10/24Thu 11/22
SLC - IAD • Non-stop
Nonstop flights
Every day
You can fly direct with Delta and United Airlines. Average duration is 4h 04m
Direct flights
+1
Direct flights
+1
When to book
25 weeks
in advance
Our data shows that travelers who book at least 25 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 11% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Orlando (MCO)
Cheapest • Avg $260 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 25m (one-way)
Insights
Insights
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We hope you love your trip to Washington, D.C. Dulles Intl Airport!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from Salt Lake City to Dulles Intl (SLC-IAD)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Salt Lake City to Dulles Intl

Sun, Sep 27 - Mon, Oct 5
Frontier Logo
8:24 pm - 6:20 amSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
7h 56m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:00 am - 7:29 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
15h 29m1 stop Las Vegas Harry Reid Intl
$333Frontier
Thu, Oct 15 - Mon, Oct 19
Frontier Logo
8:19 pm - 6:20 amSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
8h 01m1 stop Las Vegas Harry Reid Intl
Frontier Logo
9:06 pm - 3:21 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
20h 15m2 stops Atlanta Hartsfield-Jackson Denver Intl
$333Frontier
Fri, Oct 2 - Sun, Oct 4
Frontier Logo
8:24 pm - 6:20 amSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
7h 56m1 stop Las Vegas Harry Reid Intl
Frontier Logo
6:00 am - 1:10 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
9h 10m1 stop Las Vegas Harry Reid Intl
$333Frontier
Mon, Oct 5 - Tue, Oct 13
Multiple Airlines Logo
11:29 am - 11:59 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
10h 30m1 stop Seattle/Tacoma Intl
Multiple Airlines Logo
6:00 am - 1:02 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
9h 02m1 stop Las Vegas Harry Reid Intl
$334Multiple Airlines
Thu, Nov 12 - Tue, Nov 17
United Airlines Logo
10:05 am - 4:08 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
4h 03mnonstop
United Airlines Logo
6:00 pm - 8:56 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 56mnonstop
$359United Airlines
Wed, Oct 21 - Sat, Oct 24
United Airlines Logo
9:45 am - 4:04 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
4h 19mnonstop
United Airlines Logo
6:00 pm - 8:56 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 56mnonstop
$359United Airlines
Sat, Oct 24 - Sun, Nov 22
Delta Logo
2:10 pm - 8:09 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
3h 59mnonstop
Delta Logo
7:00 am - 9:52 amIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 52mnonstop
$359Delta
Wed, Sep 30 - Tue, Oct 6
Delta Logo
5:40 pm - 11:43 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
4h 03mnonstop
Delta Logo
6:13 am - 8:50 amIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 37mnonstop
$359Delta
Fri, Nov 13 - Mon, Nov 16
Delta Logo
5:55 pm - 11:47 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
3h 52mnonstop
Delta Logo
7:00 am - 9:52 amIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 52mnonstop
$359Delta
Sat, Nov 14 - Wed, Nov 25
United Airlines Logo
10:05 am - 4:08 pmSLC  Salt Lake City-IAD Washington, D.C. Dulles Intl
4h 03mnonstop
United Airlines Logo
6:00 pm - 8:56 pmIAD  Washington, D.C. Dulles Intl-SLC Salt Lake City
4h 56mnonstop
$359United Airlines
Booking Insights

Price, demand and travel trends for Salt Lake City to Washington, D.C. Dulles Intl Airport flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Salt Lake City to Washington, D.C. Dulles Intl Airport with more confidence.

How much is a round-trip flight from Salt Lake City to Washington, D.C. Dulles Intl Airport?

Round-trip flights from Salt Lake City to Washington, D.C. Dulles Intl Airport start at $333. Prices are typical for this route right now, with typical round-trip fares ranging from $331 to $532. The lowest price found in the past 5 days was $333 on Frontier.

What's the cheapest day of the week to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport?

Friday is the cheapest day of the week to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport, it is 7% cheaper than the average day. Sunday is the most expensive day with flight prices 34% higher than average. Based on deals found by KAYAK users in the last 12 months.

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

  • March is the cheapest month to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport at $359 round-trip.
  • June ($517) and July ($414) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 44% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices from Salt Lake City to Washington, D.C. Dulles Intl Airport the cheapest?

Flights from Salt Lake City to Washington, D.C. Dulles Intl Airport are cheapest 25 weeks before departure. Booking in this window typically costs about 41% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Expert advice

Expert advice for your flight from Salt Lake City to Dulles Intl

 
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Stefanie Waldek

Stefanie Waldek

Expert on United Airlines, Delta and IAD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Read more
Harriet Baskas

Harriet Baskas

Expert on SLC

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Key details for Salt Lake City to Washington, D.C. Dulles Intl Airport flights

Low season

February

Cheapest flight

$158
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 10% lower on average.
Flight from Salt Lake City to Washington, D.C. Dulles Intl Airport

When to book flights from Salt Lake City to Dulles Intl

Are your dates flexible? Find out the best times to travel from Salt Lake City to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Salt Lake City to Washington, D.C. Dulles Intl Airport flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airlines offer extra legroom and free seat selection on Salt Lake City to Washington, D.C. Dulles Intl Airport flights?

    Among airlines operating Salt Lake City to Washington, D.C. Dulles Intl Airport flights:

    • Delta: offers extra legroom; offers free seat selection
    • United Airlines: offers extra legroom; offers free seat selection

    Extra legroom and free seat selection availability depends on fare class and route.

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

    2 airlines operate flights between Salt Lake City and Washington, D.C. Dulles Intl Airport. The airlines offering nonstop flights on this route include:

    • Delta
    • United Airlines

  • Which airports can I use when flying from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    Flights from Salt Lake City to Washington, D.C. Dulles Intl Airport usually depart from Salt Lake City (SLC) and arrive at Washington, D.C. Dulles Intl (IAD).

  • Which airlines include bags at no extra cost on Salt Lake City to Washington, D.C. Dulles Intl Airport flights?

    Here are some options for this route, based on selected ticket types and cabin classes:

    • United Airlines: a cabin bag and a checked bag in Economy Class
    • Delta: a cabin bag and a checked bag in First Class
    • JetBlue: a cabin bag in Economy Class class

    Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

  • What cabin classes can I book on flights from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    Two cabin classes are available on flights from Salt Lake City to Washington, D.C. Dulles Intl Airport:

    • Economy Class
    • First Class

  • How much can I save by taking a layover when flying from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    On this route, layover flights are cheaper than nonstop options on average. Layover fares average $260 round-trip via Orlando (MCO), compared to $412 for nonstop.

  • What is the standard checked-bag allowance on flights from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    There is no standard. Checked-bag policies vary by airline on this route. Most carriers charge $35–$90 for the first checked bag in economy. Premium fares and elite-status bookings typically include a free checked bag.

  • Which aircraft model is used most often on flights from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    The Boeing 737-900 family is used most often on this route, operated mainly by Delta. Other aircraft seen on the route include Boeing 737-700 variants.

  • Which airports do connecting flights from Salt Lake City to Washington, D.C. Dulles Intl Airport pass through?

    One-stop flights from Salt Lake City to Washington, D.C. Dulles Intl Airport most commonly connect through:

    • Denver Intl (DEN) - 52% of one-stop connections
    • Charlotte Douglas (CLT) - 9% of one-stop connections
    • Dallas/Fort Worth (DFW) - 9% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 9% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    Yes. Being flexible with your travel dates can save you up to 31% on the Salt Lake City to Washington, D.C. Dulles Intl Airport route. Friday is the cheapest departure day at $376 round-trip on average, while Sunday is the most expensive at $539, a difference of $163. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How are flight departures from Salt Lake City to Washington, D.C. Dulles Intl Airport spread across the day?

    Morning is the busiest departure period on Salt Lake City to Washington, D.C. Dulles Intl Airport flights, with 50% of flights leaving in that window. Evening departures account for 50%, afternoon flights for 0%, and night flights for 0%.

  • What popular places can I visit in Washington, D.C. Dulles Intl Airport?

    Some of the most popular sights in Washington, D.C. Dulles Intl Airport are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. Dulles Intl Airport on KAYAK.

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

    These are the earliest and latest flight times available from Salt Lake City to Washington, D.C. Dulles Intl Airport:

    • Earliest: departs at 9:45 am and lands at 1:49 pm
    • Latest: departs at 5:55 pm and lands at 9:59 pm.

    The flight takes about 4h 04m.

  • How expensive are last-minute Salt Lake City to Washington, D.C. Dulles Intl Airport flights?

    Last-minute fares on this route - booked within 2 weeks of departure - run 42% above the route average of $401. Book 25 weeks before departure for the lowest fares.

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

    A nonstop flight from Salt Lake City to Washington, D.C. Dulles Intl Airport takes 4h 04m, covering 1,823 miles.

  • Do I need a passport to fly from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Salt Lake City to Washington, D.C. Dulles Intl Airport changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $333 to $1,727. That means the highest observed fare was about 5x higher than the lowest one.

  • How are flight prices from Salt Lake City to Washington, D.C. Dulles Intl Airport looking right now?

    One-way fares from Salt Lake City to Washington, D.C. Dulles Intl Airport are currently lower than usual. Average one-way flight prices are about $216, which is 34% below the typical average for this route.

  • How much time can I save by choosing a different layover airport from Salt Lake City to Washington, D.C. Dulles Intl Airport?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 25m, compared with 6h 41m via Detroit Metropolitan Wayne County (DTW) and 7h 12m via Charlotte Douglas (CLT).

  • What is the time difference between Salt Lake City and Washington, D.C. Dulles Intl Airport?

    Washington, D.C. Dulles Intl Airport is 2 hours ahead of Salt Lake City (Eastern Time vs Mountain Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Washington, D.C. Dulles Intl Airport (IAD)?

    Washington, D.C. Dulles Intl Airport (IAD) hosts 5 major car rental companies, with daily rates starting from around $24 for economy cars. Top options include:
    • Dollar
    • Budget
    • Hertz
    • Sixt
    • Thrifty

  • How much should I expect to pay for a Salt Lake City to Washington, D.C. Dulles Intl Airport flight?

    Round-trip flights from Salt Lake City to Washington, D.C. Dulles Intl Airport range from $331 to $532, with an average of $401 over the past 12 months. Anything below $331 counts as a good deal.

  • Which airlines offer Wi-Fi on Salt Lake City to Washington, D.C. Dulles Intl Airport flights?

    Two airlines offer in-flight Wi-Fi on Salt Lake City to Washington, D.C. Dulles Intl Airport flights:

    • • Delta
    • • JetBlue

    Pricing varies by airline and fare class. Some plans are included with the ticket or loyalty program; others are paid add-ons priced by flight length.

Your guide to booking Salt Lake City to Washington, D.C. Dulles Intl Airport flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $376 - about $163 less than Sunday (30% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 41% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Salt Lake City to Washington, D.C. Dulles Intl Airport trip for March. Fares historically average $359 round-trip in that month - typically $158 less than the most expensive month, which is June (based on the last 12 months).
  • If you have the time, taking a 1-stop flight through Orlando Airport (MCO) can be cheaper than flying direct. The cheapest layover option averages $260 round-trip on this route - about $152 less than direct flights (based on the last 12 months).

Prefer to fly direct from Salt Lake City to Washington Dulles Airport?

 
Find which airlines fly direct from Salt Lake City Airport to Washington, D.C. Dulles Intl Airport, which days they fly and book direct flights.

Direct departures

Salt Lake City to Washington, D.C. Dulles Intl

Monday

Delta,United Airlines

Delta,United Airlines

Tuesday

Delta,United Airlines

Delta,United Airlines

Wednesday

Delta,United Airlines

Delta,United Airlines

Thursday

Delta,United Airlines

Delta,United Airlines

Friday

Delta,United Airlines

Delta,United Airlines

Saturday

Delta,United Airlines

Delta,United Airlines

Sunday

Delta,United Airlines

Delta,United Airlines

See more direct flights

Direct returns

Washington, D.C. Dulles Intl to Salt Lake City

Monday

Delta,United Airlines

Delta,United Airlines

Tuesday

Delta,United Airlines

Delta,United Airlines

Wednesday

Delta,United Airlines

Delta,United Airlines

Thursday

Delta,United Airlines

Delta,United Airlines

Friday

Delta,United Airlines

Delta,United Airlines

Saturday

Delta,United Airlines

Delta,United Airlines

Sunday

Delta,United Airlines

Delta,United Airlines

See more direct flights

More options for your flight from Salt Lake City to Dulles Intl

Complete your trip to Washington, D.C. with a hotel stay or car rental

Car rentals in Washington, D.C.
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