Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $183
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
Cheapflights Tip: The best prices from Los Angeles to Washington, D.C. Dulles Intl are usually found in May or July, booked 81 days in advance, depart on a Thursday or Tuesday and return on a Tuesday
Cheap flight deals from Los Angeles to Dulles Intl
Discover tips and strategies to find the most affordable flight options for your journey from Los Angeles (LAX) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 24 October 2025.
Find flight deals from Los Angeles to Dulles Intl
Cheapest flights from Los Angeles to Dulles IntlExplore the most affordable flight options available from Los Angeles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.
Explore the most affordable flight options available from Los Angeles to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.
Cheapflights Fare Finder
Use the filters below to find and compare flights from Los Angeles to Washington, D.C. Dulles Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 2/12
12:40-22:00
1 stop6h 20m
Washington, D.C. Dulles Intl
Tue 9/12
17:45-22:15
1 stop7h 30m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Sat 6/12
05:30-15:15
1 stop6h 45m
Washington, D.C. Dulles Intl
Fri 12/12
13:50-21:10
2 stops10h 20m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 11/11
08:35-22:00
2 stops10h 25m
Washington, D.C. Dulles Intl
Wed 11/2
16:30-21:25
1 stop7h 55m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Mon 8/12
20:18-17:30
2 stops18h 12m
Washington, D.C. Dulles Intl
Thu 11/12
07:34-15:20
1 stop10h 46m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Sat 6/12
23:35-07:26
Nonstop4h 51m
Washington, D.C. Dulles Intl
Fri 12/12
06:45-09:37
Nonstop5h 52m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Sat 31/1
12:30-17:04
2 stops25h 34m
Washington, D.C. Dulles Intl
Wed 4/2
18:04-09:02
1 stop17h 58m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Fri 14/11
12:45-20:39
Nonstop4h 54m
Washington, D.C. Dulles Intl
Thu 20/11
06:48-09:39
Nonstop5h 51m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 31/3
17:00-05:49
1 stop9h 49m
Washington, D.C. Dulles Intl
Wed 8/4
07:00-14:43
1 stop10h 43m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Mon 8/12
23:40-07:31
Nonstop4h 51m
Washington, D.C. Dulles Intl
Thu 11/12
15:23-18:10
Nonstop5h 47m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Wed 4/2
12:30-17:04
2 stops25h 34m
Washington, D.C. Dulles Intl
Sun 8/2
17:26-07:24
2 stops16h 58m
Best time to book a flight from Los Angeles to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Los Angeles with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Los Angeles to Washington, D.C. Dulles Intl Airport
How far ahead should I book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport?
The price you pay for your flight from Los Angeles to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 81 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport?
Currently, February is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $221). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $363). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LAX to IAD?
A simple way to save on the total cost of your ticket is to fly from Los Angeles to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight in the morning.
How often are flights from Los Angeles to Washington, D.C. delayed?
About 9% of weekly flights between Los Angeles and Washington, D.C. have experienced delays in the past year, with the average delay time being 132 minutes.
What is the most punctual flight time for Los Angeles to Washington, D.C. flights?
Historically, flights departing in the evening are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Thursday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Los Angeles to Washington, D.C. flights?
Over the past year, Cathay Pacific have had the lowest number of delays on this route, with no flights being classified as delayed.
Related info for your journey
Find useful and relevant information for your journey from Los Angeles to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Travelling to a place near Washington, D.C. Dulles Intl Airport?
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Alternative routes for Los Angeles to Dulles Intl
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How does Cheapflights help users find flights from Los Angeles to Dulles Intl?
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Can Cheapflights find flights from Los Angeles to Dulles Intl with no change fees?
Yes, we can. To see specific flights from Los Angeles to Dulles Intl with no change fees, users can toggle flexible booking options after using the search form above to find flights.
Can Cheapflights notify me if prices for flights from Los Angeles to Dulles Intl become cheaper?
Not ready to book yet? You can track prices for flights from Los Angeles to Dulles Intl on Cheapflights with our Price Alert feature and get notified when better prices are available.