Find flights
Deals
When to book
FAQs

Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $240

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 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
20 Jun — 27 Jun1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Los Angeles to Washington, D.C. Dulles Intl are usually found in July or August, booked 82 days in advance, depart on a Thursday or Friday and return on a Monday

Cheap flight deals from Los Angeles to Dulles Intl

Enter your travel dates to find the best prices.

Cheapest flights from Los Angeles to Dulles Intl
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 21 May 2026.

Tue 8/922:59
LAX
-
IAD
Nonstop4h 53m
United Airlines
Fri 11/913:03
IAD
-
LAX
Nonstop5h 23m
United Airlines
Deal found 20/5$375
Thu 27/822:59
LAX
-
IAD
Nonstop4h 53m
United Airlines
Mon 31/813:03
IAD
-
LAX
Nonstop5h 23m
United Airlines
Deal found 19/5$379
Wed 19/822:59
LAX
-
IAD
Nonstop4h 53m
United Airlines
Mon 24/813:03
IAD
-
LAX
Nonstop5h 23m
United Airlines
Deal found 18/5$382
Fri 2/1022:30
LAX
-
IAD
Nonstop4h 58m
United Airlines
Sun 11/1007:00
IAD
-
LAX
Nonstop5h 33m
United Airlines
Deal found 20/5$390
Wed 5/823:30
LAX
-
IAD
Nonstop5h 03m
United Airlines
Wed 12/813:03
IAD
-
LAX
Nonstop5h 23m
United Airlines
Deal found 19/5$396
Fri 4/922:59
LAX
-
IAD
Nonstop4h 53m
United Airlines
Sun 6/908:20
IAD
-
LAX
Nonstop5h 32m
United Airlines
Deal found 18/5$405
Thu 8/1021:30
LAX
-
IAD
Nonstop5h 00m
United Airlines
Sun 11/1007:00
IAD
-
LAX
Nonstop5h 33m
United Airlines
Deal found 18/5$412
Wed 7/1023:30
LAX
-
IAD
Nonstop4h 50m
United Airlines
Sun 11/1007:00
IAD
-
LAX
Nonstop5h 33m
United Airlines
Deal found 19/5$415
Thu 6/821:20
LAX
-
IAD
Nonstop5h 06m
United Airlines
Sun 9/822:20
IAD
-
LAX
Nonstop5h 37m
United Airlines
Deal found 17/5$424
Thu 6/822:41
LAX
-
IAD
Nonstop5h 06m
United Airlines
Tue 11/807:00
IAD
-
LAX
Nonstop5h 34m
United Airlines
Deal found 19/5$426
Tue 11/822:59
LAX
-
IAD
Nonstop4h 53m
United Airlines
Fri 14/822:23
IAD
-
LAX
Nonstop5h 36m
United Airlines
Deal found 17/5$429

Find 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 21 May 2026.

Round-trip from

$375

One-way from

$240

Popular in

November

Cheapest in

July

Average price

$557

Good round-trip deal

$445 or less
United Airlines
  • United Airlines
  • 8/9-11/9
  • Nonstop
  • 10h 16m total
  • Los Angeles to Washington, D.C.
Search Deals
Frontier
  • Frontier
  • 1/7
  • 1 total stop
  • 17h 11m total
  • Los Angeles to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($62 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in May 2026
Search Deals
Price to beat on a round-trip flight from Los Angeles to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Los Angeles to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 21 May 2026.
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

Cheapest return flight

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 23/10

21:30-05:30

Nonstop5h 00m

Washington, D.C. Dulles Intl

Mon 26/10

22:10-00:35

Nonstop5h 25m

$379

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 25/8

22:59-06:52

Nonstop4h 53m

Washington, D.C. Dulles Intl

Sat 29/8

07:00-09:34

Nonstop5h 34m

$473

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 12/6

16:49-00:55

Nonstop5h 06m

Washington, D.C. Dulles Intl

Wed 25/11

22:10-00:35

Nonstop5h 25m

$495

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 10/7

06:00-14:08

Nonstop5h 08m

Washington, D.C. Dulles Intl

Tue 14/7

09:10-11:39

Nonstop5h 29m

$577
Fastest return journey

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 3/9

12:49-20:48

Nonstop4h 59m

Washington, D.C. Dulles Intl

Fri 4/9

13:03-15:26

Nonstop5h 23m

$591

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 4/9

20:03-18:14

2 stops19h 11m

Washington, D.C. Dulles Intl

Wed 9/9

07:00-14:44

1 stop10h 44m

$659

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 9/6

22:36-06:42

Nonstop5h 06m

Washington, D.C. Dulles Intl

Tue 16/6

20:23-23:00

Nonstop5h 37m

$662

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 23/6

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Fri 26/6

22:20-00:57

Nonstop5h 37m

$722

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 16/6

16:49-00:55

Nonstop5h 06m

Washington, D.C. Dulles Intl

Fri 19/6

22:20-00:57

Nonstop5h 37m

$774

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 19/8

08:33-05:40

2 stops18h 07m

Washington, D.C. Dulles Intl

Sat 22/8

07:00-13:52

1 stop9h 52m

$839

Flights are sorted by cheapest return flights first.

Deals found on 17/5

Showing 1-10 of 24 resultsSorted by cheapest first
1
2
3

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.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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, July is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $501). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $682). 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?

Find hourly flight availability from Los Angeles to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 21 May 2026.

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 evening. If you’re flexible enough to do this you can expect to save up to 21% on your trip compared to booking a flight in the morning.

How much does it cost for a return flight from Los Angeles to Washington, D.C. Dulles Intl Airport?

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.

  • What airport do you fly from for flights from Los Angeles to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Los Angeles, you will be flying from Los Angeles, which is the city’s only airport. Los Angeles (LAX) is located 15.1 km from the centre of Los Angeles. There are 9 flights from Los Angeles to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • How long is the flight from Los Angeles to Washington, D.C. Dulles Intl Airport?

    A quick flight from Los Angeles to Washington, D.C. Dulles Intl Airport can take about 5h. United Airlines provides one of the quickest options available for as low as $379. Airlines will cover a distance of 3673 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Los Angeles to Washington, D.C. Dulles Intl Airport?

    No one likes to see their flight delayed. When booking a flight from Los Angeles to Washington, D.C. Dulles Intl Airport consider choosing Air China(94%), Air New Zealand(93%) or Virgin Australia(93%), as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Los Angeles to Washington, D.C. Dulles Intl Airport?

    On average you can expect to pay $446 for a flight from Los Angeles to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $304 while the most popular route, (Los Angeles - Washington, D.C. Dulles Intl) is currently priced at $584.

  • Can I find deals for flights from Los Angeles to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Los Angeles to Dulles Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Los Angeles to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Los Angeles to Dulles Intl.

  • Can I find deals for business class flights from Los Angeles to Dulles Intl?

    Yes. Cheapflights offers flight deals from Los Angeles to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport?

    Currently, July is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $501). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $682). 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.

See more FAQs

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Linthicum Heights

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Los Angeles to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Reagan-National flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Los Angeles to Dulles Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Dulles Intl from Los Angeles today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Los Angeles to Dulles Intl?

Cheapflights helps you find that perfect flight to Dulles Intl from Los Angeles by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.