The cheapest times to fly from IAD to SLC are
- January 1st to February 11th
- April 16th to May 6th
- August 13th to November 18th
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from IAD to SLC is late October to early November. Prices can be as high as $950 for Sunday flights during early August, or as low as $297 for Tuesday flights around late October to early November.
When to Fly to Salt Lake City
Flying from Washington, DC (IAD) to Salt Lake City, UT (SLC) will usually cost between $319 to $561 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late October to early November with an average ticket price of $327. Due to high demand the most expensive time to fly is early August, with an average price of $553. Planning your trip to low-cost times can easily save you $226 on economy flights and even more on first-class flights. Generally, any price below $377 can be considered a good price for a round-trip IAD to SLC flight.
See below for a graph of average weekly prices for the IAD to SLC route. All prices are for round-trip tickets in USD.
Compared to other flights, the IAD to SLC flight is much cheaper than the average and costs much less than the average flight leaving from Washington. The average price per mile (for a direct flight) is $0.13, which is far below average.
Flight Prices by Day of the Week
Tuesday is usually the cheapest day to depart and return on this flight. Sundays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $118 (26%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $333. Return trip prices are from the SLC to IAD flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from IAD to SLC can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 4 hour 16 minutes may be realistic.
Flight Questions Answered
Still have questions about flying from IAD to SLC? We’ve got answers.
Which airlines fly this route?
You can find 10 major airlines flying this route most often: Alaska, American, China Eastern, Delta, Fiji Airways, Frontier, Qantas, Singapore Airlines, Southwest, United, and potentially more during busy seasons.
How far away is it from Salt Lake City International Airport to Washington Dulles International Airport?
The distance between the two airports is roughly 1823 miles or 2934 kilometers.
How long does it take to fly from IAD to SLC?
The real-world flight time for a nonstop IAD to SLC flight is about 4 hour 16 minutes.
How many flights go between Washington, DC and Salt Lake City, UT?
It depends on the day of the week and the date, but a typical day might have around 99 available flights from IAD to SLC.
Airport Location Info
|Origination airport name||Washington Dulles International Airport|
|Country||the United States|
|Destination airport name||Salt Lake City International Airport|
|City||Salt Lake City, UT|
|Country||the United States|
Late and Early Flight Data
Flights from IAD to SLC tend to depart late almost never compared to the average flight. According to our recently updated data, 3% of flights departed 5 or more minutes late, and 20% of flights left 5 or more minutes early. On average you can expect to leave SLC heading for IAD about 2 minutes early. This does significantly impact arrival time, as the average landing time in Salt Lake City, UT is about 23 minutes early. The numbers below show a recent average of take-off times versus the scheduled departure flight:
- Delta: 2 minutes early
- Some airlines not reporting
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.