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Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $163

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 7/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
18 Oct — 25 Oct1
1 adult
1 adult, Economy

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 Tuesday or Thursday 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 18 September 2025.

Round-trip from

$295

One-way from

$163

Popular in

December

Cheapest in

May

Average price

$595
United Airlines
  • United Airlines
  • 15/10-19/10
  • Nonstop
  • 10h 28m total
  • Los Angeles to Washington, D.C.
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United Airlines
  • United Airlines
  • 7/10
  • Nonstop
  • 5h 03m total
  • Los Angeles to Washington, D.C.
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($144 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($24 potential savings vs. average return price).
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Average for round-trip flights in September 2025
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Find flight deals from Los Angeles to Dulles Intl

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 18 September 2025.

Wed 15/1021:35LAX - IAD
Nonstop5h 03mUnited Airlines
Sun 19/1007:00IAD - LAX
Nonstop5h 25mUnited Airlines
Deal found 15/9$295
Sun 9/1116:34LAX - IAD
Nonstop4h 41mUnited Airlines
Wed 12/1122:08IAD - LAX
Nonstop5h 51mUnited Airlines
Deal found 15/9$319
Wed 15/1022:35LAX - IAD
Nonstop5h 04mUnited Airlines
Wed 22/1022:14IAD - LAX
Nonstop5h 31mUnited Airlines
Deal found 16/9$325
Tue 7/1022:45LAX - IAD
Nonstop5h 04mUnited Airlines
Mon 13/1022:14IAD - LAX
Nonstop5h 31mUnited Airlines
Deal found 16/9$339
Wed 8/1021:35LAX - IAD
Nonstop5h 03mUnited Airlines
Fri 10/1022:14IAD - LAX
Nonstop5h 31mUnited Airlines
Deal found 16/9$349
Wed 8/1008:15LAX - IAD
Nonstop5h 08mUnited Airlines
Tue 14/1007:00IAD - LAX
Nonstop5h 25mUnited Airlines
Deal found 16/9$355
Sat 1/1105:30LAX - IAD
1 stop7h 45mSouthwest
Tue 4/1107:40IAD - LAX
2 stops9h 55mSouthwest
Deal found 16/9$363
Sun 2/1105:35LAX - IAD
1 stop10h 25mSouthwest
Tue 4/1107:40IAD - LAX
2 stops9h 55mSouthwest
Deal found 16/9$372
Fri 31/1008:35LAX - IAD
1 stop10h 50mSouthwest
Wed 5/1107:40IAD - LAX
1 stop7h 15mSouthwest
Deal found 16/9$378
Wed 8/1013:00LAX - IAD
Nonstop5h 01mUnited Airlines
Sat 11/1022:14IAD - LAX
Nonstop5h 31mUnited Airlines
Deal found 16/9$384
Thu 16/1016:30LAX - IAD
Nonstop5h 03mUnited Airlines
Tue 21/1007:00IAD - LAX
Nonstop5h 25mUnited Airlines
Deal found 16/9$385
Tue 14/1006:45LAX - IAD
1 stop8h 10mSouthwest
Tue 21/1007:40IAD - LAX
2 stops12h 10mSouthwest
Deal found 16/9$393

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 18 September 2025.
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

Los Angeles

Fly to

Dulles Intl

Route

Depart

Return

Price

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 9/11

16:34-00:15

Nonstop4h 41m

Washington, D.C. Dulles Intl

Wed 12/11

22:08-00:59

Nonstop5h 51m

$319

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 19/11

15:58-06:23

1 stop11h 25m

Washington, D.C. Dulles Intl

Mon 24/11

07:38-14:12

1 stop9h 34m

$399

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 31/10

08:35-22:25

1 stop10h 50m

Washington, D.C. Dulles Intl

Sat 8/11

05:00-09:15

1 stop7h 15m

$408

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 17/10

22:35-06:39

Nonstop5h 04m

Washington, D.C. Dulles Intl

Wed 22/10

17:42-20:14

Nonstop5h 32m

$415

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 17/10

13:00-21:01

Nonstop5h 01m

Washington, D.C. Dulles Intl

Sat 25/10

07:00-09:25

Nonstop5h 25m

$415

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 23/10

21:35-05:38

Nonstop5h 03m

Washington, D.C. Dulles Intl

Wed 29/10

22:08-00:59

Nonstop5h 51m

$415

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 30/10

22:57-06:48

Nonstop4h 51m

Washington, D.C. Dulles Intl

Sun 2/11

22:08-00:59

Nonstop5h 51m

$445

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 12/11

20:10-17:13

2 stops18h 03m

Washington, D.C. Dulles Intl

Sun 16/11

17:40-07:20

2 stops16h 40m

$466

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 7/10

22:45-06:49

Nonstop5h 04m

Washington, D.C. Dulles Intl

Fri 10/10

19:22-21:52

Nonstop5h 30m

$475

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 11/10

21:35-05:38

Nonstop5h 03m

Washington, D.C. Dulles Intl

Tue 14/10

07:00-09:25

Nonstop5h 25m

$475

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 22 results
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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 12 September 2025.

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 $1,013). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,608). 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 18 September 2025.

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 morning. If you’re flexible enough to do this you can expect to save up to 24% on your trip compared to booking a flight at midday.

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 23 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 4h 41m. United Airlines provides one of the quickest options available for as low as $319. 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 Brussels Airlines(90%), Austrian Airlines(88%) or United Airlines(88%), 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, February is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of $1,013). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in December is currently the most expensive (average of $1,608). 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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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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