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Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from $178

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
5 May — 12 May1
1 adult

Cheapflights Tip: The best prices from Los Angeles to Washington, D.C. Dulles Intl are usually found in September or August, booked 81 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 30 April 2025.

Round-trip from

$315

One-way from

$178

Popular in

December

Cheapest in

September

Average price

$589

Good round-trip deal

$350 or less

Good one-way deal

$177 or less
Alaska Airlines
  • Alaska Airlines
  • 25/5-7/6
  • Nonstop
  • 10h 52m total
  • Los Angeles to Washington, D.C.
United Airlines
  • United Airlines
  • 12/6
  • Nonstop
  • 4h 59m total
  • Los Angeles to Washington, D.C.
Highest demand for flights based on searches. 12% potential increase in price ($139 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease ($27 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 30 April 2025.

Sun 25/508:00LAX - IAD
Nonstop5h 14mAlaska Airlines
Sat 7/619:25IAD - LAX
Nonstop5h 38mAlaska Airlines
Deal found 29/4$315
Thu 29/516:45LAX - IAD
Nonstop4h 59mUnited Airlines
Sun 1/620:20IAD - LAX
Nonstop5h 29mUnited Airlines
Deal found 29/4$317
Tue 6/506:46LAX - IAD
1 stop7h 36mHawaiian Airlines
Sat 10/507:00IAD - LAX
1 stop11h 06mHawaiian Airlines
Deal found 28/4$322
Sun 8/623:55LAX - IAD
1 stop8h 48mSun Country Air
Thu 12/612:40IAD - LAX
1 stop13h 04mSun Country Air
Deal found 29/4$445
Wed 28/505:25LAX - IAD
2 stops9h 30mSouthwest
Thu 29/514:10IAD - LAX
1 stop10h 05mSouthwest
Deal found 28/4$465

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 30 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

Sun 25/5

08:00-16:14

Nonstop5h 14m

Washington, D.C. Dulles Intl

Sat 7/6

19:25-22:03

Nonstop5h 38m

$315

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 29/5

16:45-00:44

Nonstop4h 59m

Washington, D.C. Dulles Intl

Sun 1/6

20:20-22:49

Nonstop5h 29m

$317

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 10/5

08:00-16:00

Nonstop5h 00m

Washington, D.C. Dulles Intl

Tue 13/5

07:00-15:08

1 stop11h 08m

$347

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 8/6

23:55-11:43

1 stop8h 48m

Washington, D.C. Dulles Intl

Thu 12/6

12:40-22:44

1 stop13h 04m

$445

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 28/5

05:25-17:55

2 stops9h 30m

Washington, D.C. Dulles Intl

Thu 29/5

14:10-21:15

1 stop10h 05m

$465

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 12/6

16:45-00:44

Nonstop4h 59m

$178

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 8/5

08:00-16:00

Nonstop5h 00m

$186

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 25/9

06:05-15:45

1 stop6h 40m

$194

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 20/5

19:55-07:36

1 stop8h 41m

$200

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 12/6

23:55-12:25

1 stop9h 30m

$239

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 11 results
1
2

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 25 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 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 30 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 23% 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 30 April 2025.

The most flights from LAX to IAD are scheduled on a Tuesday (35 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 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 30 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.

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
8.0
Very Good

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Boarding

8.2

Food

7.1

Entertainment

7.1

Comfort

7.9

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 15 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 $315. Additional round-trip tickets that might be worth considering are offered by United Airlines and Hawaiian Airlines, with the lowest prices starting at $317 and $347, respectively. Alaska Airlines is 48% 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 $178 on United Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $186 and Southwest from $194 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 Cathay Pacific(100%), Iberia(100%) or Singapore Airlines(97%), 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 $381 for a flight from Los Angeles to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $131 while the most popular route, (Los Angeles - Washington, D.C. Dulles Intl) is currently priced at $1,299.

  • 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 30 April 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$467Average$604FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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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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