Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from £118

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 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
29 Apr — 6 May1
1 adult
1 adult, Economy, 0 bags

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 30 March 2026.

Fri 17/405:10
LAX
-
IAD
1 stop8h 55m
Southwest
Mon 20/405:55
IAD
-
LAX
2 stops9h 40m
Southwest
Deal found 26/3£208
Tue 21/410:45
LAX
-
IAD
2 stops9h 55m
Southwest
Sun 26/405:50
IAD
-
LAX
1 stop7h 10m
Southwest
Deal found 27/3£212
Thu 16/414:20
LAX
-
IAD
1 stop7h 00m
Southwest
Sun 19/405:50
IAD
-
LAX
1 stop7h 10m
Southwest
Deal found 26/3£214
Wed 20/522:10
LAX
-
IAD
Nonstop5h 02m
United Airlines
Sun 24/520:15
IAD
-
LAX
Nonstop5h 37m
United Airlines
Deal found 26/3£215
Wed 15/410:45
LAX
-
IAD
2 stops9h 55m
Southwest
Sat 18/417:05
IAD
-
LAX
1 stop7h 25m
Southwest
Deal found 26/3£216
Thu 23/411:00
LAX
-
IAD
1 stop10h 20m
Southwest
Sun 26/405:50
IAD
-
LAX
1 stop7h 10m
Southwest
Deal found 26/3£218
Thu 6/823:03
LAX
-
IAD
1 stop10h 50m
Frontier
Tue 11/811:11
IAD
-
LAX
1 stop8h 54m
Frontier
Deal found 26/3£219
Tue 28/410:45
LAX
-
IAD
2 stops9h 55m
Southwest
Mon 11/505:55
IAD
-
LAX
2 stops9h 40m
Southwest
Deal found 26/3£222
Thu 16/411:00
LAX
-
IAD
1 stop10h 20m
Southwest
Wed 22/406:20
IAD
-
LAX
2 stops10h 00m
Southwest
Deal found 25/3£222
Fri 7/820:15
LAX
-
IAD
1 stop8h 35m
Frontier
Wed 12/807:30
IAD
-
LAX
1 stop9h 43m
Frontier
Deal found 29/3£223
Thu 23/416:42
LAX
-
IAD
Nonstop5h 03m
United Airlines
Sun 26/422:05
IAD
-
LAX
Nonstop5h 50m
United Airlines
Deal found 30/3£224

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 30 March 2026.

Round-trip from

£208

One-way from

£118

Popular in

December

Cheapest in

May

Average price

£345

Good one-way deal

£199 or less
Southwest
  • Southwest
  • 17/4-20/4
  • 3 total stops
  • 18h 35m total
  • Los Angeles to Washington, D.C.
United Airlines
  • United Airlines
  • 17/4
  • Nonstop
  • 5h 03m total
  • Los Angeles to Washington, D.C.
Highest demand for flights based on searches. 10% potential increase in price (£26 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Average for round-trip flights in March 2026
Price to beat on a one-way flight from Los Angeles to Washington, D.C. Dulles Intl.

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 858,174 searches. Data last updated 30 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

Tue 21/4

10:45-23:40

2 stops9h 55m

Washington, D.C. Dulles Intl

Sun 26/4

05:50-10:00

1 stop7h 10m

£212

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 17/7

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Fri 24/7

22:20-00:57

Nonstop5h 37m

£239

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 14/4

10:55-23:40

2 stops9h 45m

Washington, D.C. Dulles Intl

Thu 30/4

05:55-10:00

1 stop7h 05m

£256

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 23/4

11:00-00:20

1 stop10h 20m

Washington, D.C. Dulles Intl

Sun 26/4

05:50-12:45

2 stops9h 55m

£290
Fastest return journey

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 4/8

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Thu 13/8

20:30-23:01

Nonstop5h 31m

£306

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Mon 3/8

21:35-05:41

Nonstop5h 06m

Washington, D.C. Dulles Intl

Tue 11/8

09:00-11:31

Nonstop5h 31m

£306

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 2/7

21:35-05:41

Nonstop5h 06m

Washington, D.C. Dulles Intl

Fri 10/7

22:20-00:57

Nonstop5h 37m

£320

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 7/8

16:49-00:55

Nonstop5h 06m

Washington, D.C. Dulles Intl

Fri 14/8

20:30-23:01

Nonstop5h 31m

£321

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 7/8

21:35-05:41

Nonstop5h 06m

Washington, D.C. Dulles Intl

Thu 13/8

22:20-00:56

Nonstop5h 36m

£322

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 21/4

11:03-05:40

2 stops15h 37m

Washington, D.C. Dulles Intl

Tue 5/5

07:10-13:43

1 stop9h 33m

£328

Flights are sorted by cheapest return flights first.

Deals found on 26/3

Showing 1-10 of 22 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.

Booking 90 days in advance of your planned departure date is, on average, the best time to get cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 £117). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of £209). 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 30 March 2026.

When flying from Los Angeles to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 62% versus a flight at midday.

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?

    Located just 9.4 mi from the city center, Los Angeles is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Los Angeles. Booking flights from Los Angeles (LAX) to Washington, D.C. Dulles Intl should be relatively easy as there are 17 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

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

    There are many flights that can get you from Los Angeles to Washington, D.C. Dulles Intl Airport in 5h 03m. Fly via Southwest or United Airlines to get the fastest option. There are 2282 mi between Los Angeles and Washington, D.C. Dulles Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

  • 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.

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

    On average you can expect to pay £199 for a flight from Los Angeles to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £105 while the most popular route, (Los Angeles - Washington, D.C. Dulles Intl) is currently priced at £153.

  • 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 £117). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of £209). 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
Silver Spring
Hanover
Oxon Hill
Gaithersburg
Woodbridge
Arlington
Alexandria
Sterling

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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?

When you search for this flight from Los Angeles to Dulles Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Los Angeles to Dulles Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Los Angeles to Dulles Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Los Angeles to Dulles Intl with no change fees.

Can Cheapflights notify me if prices for flights from Los Angeles to Dulles Intl become cheaper?

Of course! You can now track prices for flights from Los Angeles to Dulles Intl and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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