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Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $187

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
20 Apr — 27 Apr1
1 adult

Cheapflights Tip: The best prices from Los Angeles to Washington, D.C. Dulles Intl are usually found in September or August, booked 63 days in advance, depart on a Saturday or Thursday and return on a Wednesday

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 15 April 2025.

Round-trip from

$334

One-way from

$187

Popular in

December

Cheapest in

September

Average price

$586

Good round-trip deal

$356 or less

Good one-way deal

$259 or less
Alaska Airlines
  • Alaska Airlines
  • 2/7-2/7
  • Nonstop
  • 10h 34m total
  • Los Angeles to Washington, D.C.
Alaska Airlines
  • Alaska Airlines
  • 13/5
  • 1 total stop
  • 11h 13m total
  • Los Angeles to Washington, D.C.
Highest demand for flights based on searches. 12% potential increase in price ($140 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($28 potential savings vs. average return price).
Average for round-trip flights in April 2025
Price to beat on a round-trip flight from Los Angeles to Washington, D.C. Dulles Intl.
Price to beat on a one-way flight from Los Angeles to Washington, D.C. Dulles Intl.

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 15 April 2025.

Wed 2/708:20LAX - IAD
Nonstop5h 05mAlaska Airlines
Wed 2/720:19IAD - LAX
Nonstop5h 29mAlaska Airlines
Deal found 14/4$334
Thu 29/514:41LAX - IAD
1 stop6h 53mUnited Airlines
Sat 31/508:15IAD - LAX
Nonstop5h 16mUnited Airlines
Deal found 14/4$337
Sat 10/508:00LAX - IAD
Nonstop5h 00mMultiple Airlines
Sat 24/507:25IAD - LAX
1 stop7h 41mMultiple Airlines
Deal found 14/4$339
Sun 27/422:35LAX - IAD
1 stop12h 47mFrontier
Thu 1/516:00IAD - LAX
1 stop8h 43mFrontier
Deal found 14/4$378
Thu 29/506:00LAX - IAD
1 stop9h 59mHawaiian Airlines
Tue 3/606:30IAD - LAX
1 stop11h 16mHawaiian Airlines
Deal found 14/4$397
Fri 9/510:25LAX - IAD
1 stop9h 15mSouthwest
Tue 13/507:50IAD - LAX
2 stops13h 25mSouthwest
Deal found 14/4$488
Thu 18/909:54LAX - IAD
1 stop23h 29mSun Country Air
Sun 21/910:48IAD - LAX
1 stop27h 27mSun Country Air
Deal found 14/4$499
Wed 25/621:40LAX - IAD
1 stop11h 19mDelta
Sat 5/706:00IAD - LAX
2 stops14h 46mDelta
Deal found 14/4$643

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 15 April 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

Wed 2/7

08:20-16:25

Nonstop5h 05m

Washington, D.C. Dulles Intl

Wed 2/7

20:19-22:48

Nonstop5h 29m

$334

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 29/5

14:41-00:34

1 stop6h 53m

Washington, D.C. Dulles Intl

Sat 31/5

08:15-10:31

Nonstop5h 16m

$337

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 10/5

08:00-16:00

Nonstop5h 00m

Washington, D.C. Dulles Intl

Sat 24/5

07:25-12:06

1 stop7h 41m

$339

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 27/4

22:35-14:22

1 stop12h 47m

Washington, D.C. Dulles Intl

Thu 1/5

16:00-21:43

1 stop8h 43m

$378

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 29/5

06:00-18:59

1 stop9h 59m

Washington, D.C. Dulles Intl

Tue 3/6

06:30-14:46

1 stop11h 16m

$397

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 9/5

10:25-22:40

1 stop9h 15m

Washington, D.C. Dulles Intl

Tue 13/5

07:50-18:15

2 stops13h 25m

$488

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 18/9

09:54-12:23

1 stop23h 29m

Washington, D.C. Dulles Intl

Sun 21/9

10:48-11:15

1 stop27h 27m

$499

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 25/6

21:40-11:59

1 stop11h 19m

Washington, D.C. Dulles Intl

Sat 5/7

06:00-17:46

2 stops14h 46m

$643

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 13/5

09:45-23:58

1 stop11h 13m

$187

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 17/7

19:18-05:24

1 stop7h 06m

$196

Flights are sorted by cheapest return flights first.

Deals found on 13/4

Showing 1-10 of 14 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 11 April 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 63 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 15 April 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 afternoon. If you’re flexible enough to do this you can expect to save up to 22% on your trip compared to booking a flight in the morning.

Weekly flight availability from Los Angeles to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Los Angeles to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 15 April 2025.

The most flights from LAX to IAD are scheduled on a Friday (44 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (30 on average).

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 66.0 - 102.0 inches per month. May is typically the wettest month, when rainfall can reach 102.0 mm. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 66.0 mm.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 27.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 2.0 C).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated 15 April 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Los Angeles to Washington, D.C. to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
8.0
Very Good

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

Crew

8.5

Boarding

8.2

Entertainment

7.1

Overall

8.0

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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 37 flights from Los Angeles to Washington, D.C. Dulles Intl per day from 1 airline.

  • What are the cheapest airlines flying from Los Angeles to Washington, D.C. Dulles Intl Airport round-trip?

    Flying on Alaska Airlines is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $334. Additional round-trip tickets that might be worth considering are offered by United Airlines and Frontier, with the lowest prices starting at $337 and $378, respectively. Alaska Airlines is 46% cheaper than the average price of flights available within the next 90 days to this destination.

  • What are the cheapest airlines to fly from Los Angeles to Washington, D.C. Dulles Intl Airport one-way?

    One-way options have recently been found by users for as low as $187 on Alaska Airlines. Other airlines that offer cheap prices include United Airlines from $196 and Hawaiian Airlines from $203 one-way.

  • 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 Qantas Airways(100%), Cathay Pacific(100%) or Iberia(100%), 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 $388 for a flight from Los Angeles to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $259 while the most popular route, (Los Angeles - Washington, D.C. Dulles Intl) is currently priced at $339.

  • 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

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Alternative routes for Los Angeles to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top airline flying from Los Angeles to Dulles Intl

Discover the top airline that operate flights from Los Angeles to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 647,157 searches. Data last updated 15 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$474Average$613FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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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