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Cheap flights from Los Angeles to Washington, D.C. Dulles Intl Airport from £80

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 31/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
8 Jul — 15 Jul1
1 adult

Cheapflights Tip: The best prices from Los Angeles to Washington, D.C. Dulles Intl are usually found in May or August, booked 81 days in advance, depart on a Friday or Saturday 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 3 July 2025.

Round-trip from

£145

One-way from

£80

Popular in

December

Cheapest in

May

Average price

£282

Good one-way deal

£327 or less
Southwest
  • Southwest
  • 9/10-12/10
  • 2 total stops
  • 15h 05m total
  • Los Angeles to Washington, D.C.
United Airlines
  • United Airlines
  • 31/10
  • Nonstop
  • 4h 54m total
  • Los Angeles to Washington, D.C.
Highest demand for flights based on searches. 14% potential increase in price (£34 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in July 2025
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 3 July 2025.

Thu 9/1013:25LAX - IAD
1 stop7h 05mSouthwest
Sun 12/1018:35IAD - LAX
1 stop8h 00mSouthwest
Deal found 2/7£145
Sun 17/813:57LAX - IAD
1 stop19h 54mFrontier
Sun 24/821:33IAD - LAX
1 stop13h 35mFrontier
Deal found 2/7£163
Thu 28/823:00LAX - IAD
Nonstop4h 51mUnited Airlines
Sun 31/807:00IAD - LAX
Nonstop5h 26mUnited Airlines
Deal found 1/7£173
Wed 23/708:20LAX - IAD
Nonstop5h 05mAlaska Airlines
Wed 23/720:19IAD - LAX
Nonstop5h 29mAlaska Airlines
Deal found 1/7£198
Wed 13/808:20LAX - IAD
Nonstop5h 05mHawaiian Airlines
Wed 20/807:00IAD - LAX
1 stop10h 57mHawaiian Airlines
Deal found 1/7£206
Wed 23/723:55LAX - IAD
1 stop8h 48mSun Country Air
Wed 30/712:40IAD - LAX
1 stop7h 31mSun Country Air
Deal found 3/7£230

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 3 July 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

Thu 9/10

13:25-23:30

1 stop7h 05m

Washington, D.C. Dulles Intl

Sun 12/10

18:35-23:35

1 stop8h 00m

£145

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 17/8

13:57-12:51

1 stop19h 54m

Washington, D.C. Dulles Intl

Sun 24/8

21:33-08:08

1 stop13h 35m

£163

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 28/8

23:00-06:51

Nonstop4h 51m

Washington, D.C. Dulles Intl

Sun 31/8

07:00-09:26

Nonstop5h 26m

£173

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 23/7

08:20-16:25

Nonstop5h 05m

Washington, D.C. Dulles Intl

Wed 23/7

20:19-22:48

Nonstop5h 29m

£198

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 13/8

08:20-16:25

Nonstop5h 05m

Washington, D.C. Dulles Intl

Wed 20/8

07:00-14:57

1 stop10h 57m

£206

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 23/7

23:55-11:43

1 stop8h 48m

Washington, D.C. Dulles Intl

Wed 30/7

12:40-17:11

1 stop7h 31m

£230

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 31/10

11:00-18:54

Nonstop4h 54m

£80

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 8/11

13:18-23:55

1 stop7h 37m

£85

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 15/8

08:20-16:25

Nonstop5h 05m

£102

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Mon 24/11

17:00-05:55

1 stop9h 55m

£105

Flights are sorted by cheapest return flights first.

Deals found on 2/7

Showing 1-10 of 14 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 27 June 2025.

Booking 81 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, January is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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 3 July 2025.

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 35% versus a flight at midday.

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 3 July 2025.

The most flights from LAX to IAD are scheduled on a Monday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (13 on average).

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 3 July 2025.
See what other customers who have flown with Alaska Airlines, Southwest, andDelta from Los Angeles to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

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

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Food

7.1

Entertainment

7.1

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?

    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 26 daily outbound flights to Washington, D.C. Dulles Intl from 0 different airlines.

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

    Flying on Southwest is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at £145. Additional return tickets that might be worth considering are offered by Frontier and United Airlines, with the lowest prices starting at £163 and £173, respectively. Users have found that Southwest is 48% cheaper than the other options available to this destination.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at £80. Frontier flights start at £85 while deals on Alaska Airlines start at £102 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 Egyptair (95%), Brussels Airlines (89%) or Singapore Airlines (89%) 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 £361 for a flight from Los Angeles to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is £123 while the most popular route, (Los Angeles - Washington, D.C. Dulles Intl) is currently priced at £206.

  • 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, January is the cheapest month in which you can book a flight from Los Angeles to Washington, D.C. Dulles Intl Airport (average of £599). Flying from Los Angeles to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of £947). 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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