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Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $225

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 17/4. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
25 Apr — 2 May1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Los Angeles Los Angeles to Washington, D.C. Dulles Intl are usually found in May or July, booked 90 days in advance, depart on a Tuesday 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 26 March 2026.

Fri 1/505:10
LAX
-
IAD
1 stop8h 55m
Southwest
Mon 4/505:55
IAD
-
LAX
2 stops9h 40m
Southwest
Deal found 25/3$396
Wed 22/410:45
LAX
-
IAD
2 stops9h 55m
Southwest
Sun 26/405:50
IAD
-
LAX
1 stop7h 10m
Southwest
Deal found 24/3$403
Fri 8/523:21
LAX
-
IAD
1 stop16h 11m
Frontier
Fri 15/515:59
IAD
-
LAX
2 stops20h 04m
Frontier
Deal found 24/3$405
Thu 7/514:20
LAX
-
IAD
1 stop7h 00m
Southwest
Sun 10/518:05
IAD
-
LAX
1 stop7h 55m
Southwest
Deal found 25/3$408
Wed 15/421:20
LAX
-
IAD
Nonstop5h 05m
United Airlines
Mon 20/422:05
IAD
-
LAX
Nonstop5h 50m
United Airlines
Deal found 25/3$409
Wed 15/410:45
LAX
-
IAD
2 stops9h 55m
Southwest
Mon 20/405:55
IAD
-
LAX
2 stops9h 40m
Southwest
Deal found 25/3$411
Tue 14/410:55
LAX
-
IAD
2 stops9h 45m
Southwest
Mon 20/416:30
IAD
-
LAX
1 stop9h 50m
Southwest
Deal found 25/3$412
Thu 16/414:20
LAX
-
IAD
1 stop7h 00m
Southwest
Wed 22/406:20
IAD
-
LAX
2 stops10h 00m
Southwest
Deal found 26/3$415
Tue 5/510:00
LAX
-
IAD
1 stop11h 09m
Alaska Airlines
Wed 6/507:10
IAD
-
LAX
1 stop11h 38m
Alaska Airlines
Deal found 24/3$421
Tue 12/510:45
LAX
-
IAD
2 stops9h 55m
Southwest
Thu 28/505:55
IAD
-
LAX
2 stops9h 40m
Southwest
Deal found 22/3$422

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 26 March 2026.

Round-trip from

$396

One-way from

$225

Popular in

December

Cheapest in

May

Average price

$656
Southwest
  • Southwest
  • 24/4-2/5
  • 3 total stops
  • 18h 15m total
  • Los Angeles to Washington, D.C.
Search Deals
United Airlines
  • United Airlines
  • 30/4
  • Nonstop
  • 5h 01m total
  • Los Angeles to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($96 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($16 potential savings vs. average return price).
Search Deals
Average for round-trip flights in March 2026
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 26 March 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 Los Angeles

Tue 12/5

10:45-23:40

2 stops9h 55m

Washington, D.C. Dulles Intl

Thu 28/5

05:55-12:35

2 stops9h 40m

$422

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 23/7

21:35-05:41

Nonstop5h 06m

Washington, D.C. Dulles Intl

Sun 2/8

22:20-00:57

Nonstop5h 37m

$426
Fastest return journey

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Fri 29/5

16:49-00:55

Nonstop5h 06m

Washington, D.C. Dulles Intl

Sun 31/5

07:00-09:26

Nonstop5h 26m

$455

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Tue 5/5

10:45-23:40

2 stops9h 55m

Washington, D.C. Dulles Intl

Tue 12/5

06:20-16:15

2 stops12h 55m

$469

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Sat 9/5

10:30-22:55

2 stops9h 25m

Washington, D.C. Dulles Intl

Sat 16/5

05:50-15:15

2 stops12h 25m

$501

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 14/5

21:35-05:40

Nonstop5h 05m

Washington, D.C. Dulles Intl

Sat 16/5

20:29-23:15

Nonstop5h 46m

$527

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Tue 5/5

22:10-06:12

Nonstop5h 02m

Washington, D.C. Dulles Intl

Wed 13/5

22:05-00:52

Nonstop5h 47m

$550

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 21/5

11:10-00:20

2 stops10h 10m

Washington, D.C. Dulles Intl

Tue 26/5

06:20-13:00

2 stops9h 40m

$556

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 13/5

10:45-23:40

2 stops9h 55m

Washington, D.C. Dulles Intl

Tue 19/5

06:20-16:15

2 stops12h 55m

$556

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 14/5

11:10-00:20

2 stops10h 10m

Washington, D.C. Dulles Intl

Sat 16/5

05:50-15:15

2 stops12h 25m

$570

Flights are sorted by cheapest return flights first.

Deals found on 24/3

Showing 1-10 of 24 resultsSorted by cheapest first
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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?

Use this chart to determine the optimal time to book a return flight from Los Angeles to Dulles Intl. Price data was last updated on 13 March 2026.

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 90 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, August is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $222). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $398). 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 26 March 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 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 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 Los Angeles (LAX) is located 15.1 km from the centre of Los Angeles. There are 18 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 05m. Southwest provides one of the quickest options available for as low as $500. 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(88%), Asiana Airlines(87%) or Lufthansa(85%), as they are the most reliable in getting you off to your destination on time.

  • 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, August is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $222). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $398). 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

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Alternative routes for Los Angeles to Dulles Intl

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Fly with Cheapflights

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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.

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