Cheap Flights from LAX to IAD: When to Fly from Los Angeles to Washington

The cheapest times to fly from LAX to IAD are

• January 8th to March 11th
• April 23rd to May 6th
• August 20th 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 LAX to IAD is early November. Prices can be as high as $918 for Sunday flights during early August, or as low as $282 for Tuesday flights around early November.

When to Fly to Washington

Flying from Los Angeles, CA (LAX) to Washington, DC (IAD) will usually cost between $295 to $501 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early November with an average ticket price of $292. Due to high demand the most expensive time to fly is early August, with an average price of $501. Planning your trip to low-cost times can easily save you $209 on economy flights and even more on first-class flights. Generally, any price below $311 can be considered a good price for a round-trip LAX to IAD flight.

See below for a graph of average weekly prices for the LAX to IAD route. All prices are for round-trip tickets in USD.

Compared to other flights, the LAX to IAD flight is much cheaper than the average and costs much less than the average flight leaving from Los Angeles. The average price per mile (for a direct flight) is $0.08, 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 $80 (20%) 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 $309. Return trip prices are from the IAD to LAX flight, and often highlight the quality of our data in showing the same trend.

Nonstop Flights and Layovers

Travelers looking to fly from LAX to IAD can generally find a 0-layover flight. Because there is a direct flight option the real-world direct flight time of 5 hour 5 minutes may be realistic.

Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is a nonstop flight from LAX to IAD while comparing.

Flight Questions Answered

Still have questions about flying from LAX to IAD? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Alaska, American, China Eastern, Delta, Frontier, Singapore Airlines, Southwest, Sun Country Airlines, United, and potentially more during busy seasons.

How far away is it from Washington Dulles International Airport to Los Angeles International Airport?

The distance between the two airports is roughly 2282 miles or 3673 kilometers.

How long does it take to fly from LAX to IAD?

The real-world flight time for a nonstop LAX to IAD flight is about 5 hour 5 minutes.

How many flights go between Los Angeles, CA and Washington, DC?

It depends on the day of the week and the date, but a typical day might have around 105 available flights from LAX to IAD.

Airport Location Info

Late and Early Flight Data

Flights from LAX to IAD tend to depart late far less frequently than the average flight. According to our recently updated data, 23% of flights departed 5 or more minutes late, and 29% of flights left 5 or more minutes early. On average you can expect to leave IAD heading for LAX about 5 minutes late. This does significantly impact arrival time, as the average landing time in Washington, DC is about 1 minutes late. The numbers below show a recent average of take-off times versus the scheduled departure flight:

• American: 11 minutes late
• United: 3 minutes late
• Alaska: 6 minutes late
• 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.