$114 Cheap Flights from Washington (IAD) to Salt Lake City (SLC)

View $114 flight on Fri, May 30, 2025Opens in a new window
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Cheap Flights from Washington to Salt Lake City (IAD-SLC)

Prices were available within the past 7 days and start at $114 for one-way flights and $188 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Wed, May 28 - Sat, May 31
IAD
Washington
SLC
Salt Lake City
$188 Roundtrip, found 14 hours ago
$188
Roundtrip
found 14 hours ago
Select Frontier Airlines flight, departing Wed, May 28 from Washington to Salt Lake City, returning Sat, May 31, priced at $188 found 14 hours ago
Frontier Airlines
Wed, May 14 - Thu, May 15
IAD
Washington
SLC
Salt Lake City
$198 Roundtrip, found 10 hours ago
$198
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Wed, May 14 from Washington to Salt Lake City, returning Thu, May 15, priced at $198 found 10 hours ago
Frontier Airlines
Sun, May 25 - Sat, May 31
IAD
Washington
SLC
Salt Lake City
$218 Roundtrip, found 4 hours ago
$218
Roundtrip
found 4 hours ago
Select Frontier Airlines flight, departing Sun, May 25 from Washington to Salt Lake City, returning Sat, May 31, priced at $218 found 4 hours ago
Frontier Airlines
Mon, Jun 2 - Thu, Jun 5
IAD
Washington
SLC
Salt Lake City
$228 Roundtrip, found 7 hours ago
$228
Roundtrip
found 7 hours ago
Select Frontier Airlines flight, departing Mon, Jun 2 from Washington to Salt Lake City, returning Thu, Jun 5, priced at $228 found 7 hours ago
Frontier Airlines
Thu, May 15 - Sat, May 17
IAD
Washington
SLC
Salt Lake City
$238 Roundtrip, found 10 hours ago
$238
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, May 15 from Washington to Salt Lake City, returning Sat, May 17, priced at $238 found 10 hours ago
Frontier Airlines
Sat, May 31 - Thu, Jun 5
IAD
Washington
SLC
Salt Lake City
$244 Roundtrip, found 12 hours ago
$244
Roundtrip
found 12 hours ago
Select Frontier Airlines flight, departing Sat, May 31 from Washington to Salt Lake City, returning Thu, Jun 5, priced at $244 found 12 hours ago
Alaska Airlines
Sat, May 10 - Sat, May 24
IAD
Washington
SLC
Salt Lake City
$269 Roundtrip, found 3 days ago
$269
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sat, May 10 from Washington to Salt Lake City, returning Sat, May 24, priced at $269 found 3 days ago
United
Sat, May 17 - Sat, May 24
IAD
Washington
SLC
Salt Lake City
$269 Roundtrip, just found
$269
Roundtrip
just found
Select United flight, departing Sat, May 17 from Washington to Salt Lake City, returning Sat, May 24, priced at $269 just found
Sun Country Airlines
Thu, May 15 - Sat, May 24
IAD
Washington
SLC
Salt Lake City
$278 Roundtrip, found 9 hours ago
$278
Roundtrip
found 9 hours ago
Select Sun Country Airlines flight, departing Thu, May 15 from Washington to Salt Lake City, returning Sat, May 24, priced at $278 found 9 hours ago
Delta
Sat, May 17 - Sat, May 24
IAD
Washington
SLC
Salt Lake City
$279 Roundtrip, just found
$279
Roundtrip
just found
Select Delta flight, departing Sat, May 17 from Washington to Salt Lake City, returning Sat, May 24, priced at $279 just found
Flights from Washington (IAD) to Salt Lake City (SLC)
Origin airport
Washington Dulles Intl.
Destination airport
Salt Lake City Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$188
Distance
1823 mi

Washington to Salt Lake City Flights

The cheapest times to fly from Washington to Salt Lake City

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Salt Lake City are during the month of May. You can find some of the cheapest flights from Washington to Salt Lake City with Expedia's search tool and vast selection of airlines.

The best time to book a flight from Washington to Salt Lake City

Sunday is one of the best days to book for cheap flights from Washington to Salt Lake City: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

How to find cheap round-trip tickets from Washington to Salt Lake City

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Salt Lake City in 2025. You can also book with separate airlines for your outbound and return journeys, from $114 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Salt Lake City flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Salt Lake City airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

*Terms apply.

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC) cost?
You can score affordable return tickets from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC) starting at $269. Book your seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Delta flight leaving IAD on May 17 2025 and touching down at SLC. The price was last updated on April 24 2025 and has not changed since.
What is the cheapest month to fly from IAD to SLC?
The cheapest flights from IAD to SLC are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
Board a nonstop flight with United Airlines and go straight from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC).
What is the cheapest airline that flies from IAD to SLC?
Currently, the cheapest carrier operating one-way flights from IAD to SLC is Delta. You can jet off on this route from $186. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on May 14 2025. Prices were last updated on April 24 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
When departing from Washington Dulles Intl. Airport (IAD), you’ll have a choice from an average of 2 daily direct flights to Salt Lake City Intl. Airport (SLC).
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
The 5 PM departures from IAD to SLC are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you’re hoping to save money, pick a less crowded time to fly.
What day of the week has the most flights from IAD to SLC?
Friday has the most flights from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC). Consider jetting off on this day and you’ll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
Washington Dulles Intl. Airport (IAD)’s first flight to Salt Lake City Intl. Airport (SLC) takes off at approximately 7:20AM UTC-5. With a flight time of 5h, you’ll arrive at around 10:20AM UTC-7.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
It takes approximately 5 hours and 3 minutes to fly the 1,850 mi from IAD to SLC.
What airline has the least delays from IAD to SLC?
United Airlines has the strongest track record for on-time direct flights from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC), with an on-time score of 90%. Use the Expedia App to check your flight schedule before you head off and get notified of any changes.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
To avoid potential delays on the Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC) route, fly before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.
What airports do you fly into for Salt Lake City from Washington Dulles Intl. Airport (IAD)?
If you’re leaving on a direct flight from Washington Dulles Intl. Airport (IAD) to Salt Lake City, you’ll come into land at either Salt Lake City Intl. Airport (SLC) or Provo, UT (PVU).
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC) last-minute?
Booking your flight from IAD to SLC right before your getaway is typically more expensive. But if you’re flexible with your itinerary, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to SLC flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to SLC flight and hotel package with Expedia could result in significant savings. What’s more, having it all in one place takes the hassle out of planning your trip. Simply pick your flights and select from our wide range of stays, then tailor your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Salt Lake City Intl. Airport (SLC)?
Typically, you can modify or cancel your IAD to SLC flight. However, additional fees may apply, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline’s fees and guidelines on flight changes, or if you need more information, head to our Customer Service portal.

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*Available to One Key members.