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Cheap flights from Los Angeles to Washington, D.C. from $152

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Los Angeles to Washington, D.C. departing on 21/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

United Airlines Logo
16:29 - 00:30LAX-IAD
5h 01mdirect
United Airlines Logo
20:00 - 22:30IAD-LAX
5h 30mdirect
$334United Airlines
Find Deal
Thu, 4 Sep - Sat, 6 Sep
United Airlines Logo
12:45 - 20:39LAX-IAD
4h 54mdirect
United Airlines Logo
05:24 - 08:15IAD-LAX
5h 51mdirect
$380United Airlines
Find Deal
Fri, 31 Oct - Sun, 2 Nov
Logo
14:27 - 19:07LAX-IAD
25h 40m1 stop
Logo
06:25 - 14:52IAD-LAX
11h 27m1 stop
$414
Find Deal
Wed, 8 Oct - Wed, 15 Oct
Southwest Logo
08:35 - 22:25LAX-IAD
10h 50m1 stop
Southwest Logo
19:50 - 00:05IAD-LAX
7h 15m1 stop
$419Southwest
Find Deal
Fri, 31 Oct - Sun, 2 Nov
Logo
00:09 - 19:14LAX-IAD
16h 05m2 stops
Logo
10:04 - 18:05IAD-LAX
11h 01m1 stop
$436
Find Deal
Sun, 19 Oct - Mon, 27 Oct
Sun Country Air Logo
18:10 - 10:59LAX-IAD
13h 49m1 stop
Sun Country Air Logo
11:56 - 22:47IAD-LAX
13h 51m1 stop
$439Sun Country Air
Find Deal
Thu, 6 Nov - Fri, 14 Nov
Alaska Airlines Logo
12:00 - 00:23LAX-IAD
9h 23m1 stop
Alaska Airlines Logo
18:09 - 09:47IAD-LAX
18h 38m1 stop
$456Alaska Airlines
Find Deal
Wed, 17 Sep - Wed, 24 Sep
Southwest Logo
07:45 - 17:40LAX-IAD
6h 55m1 stop
Southwest Logo
19:50 - 00:05IAD-LAX
7h 15m1 stop
$457Southwest
Find Deal
Thu, 30 Oct - Sun, 2 Nov
Alaska Airlines Logo
10:00 - 00:23LAX-IAD
11h 23m1 stop
Alaska Airlines Logo
17:52 - 07:21IAD-LAX
16h 29m2 stops
$459Alaska Airlines
Find Deal
Wed, 24 Sep - Mon, 29 Sep
Sun Country Air Logo
18:16 - 11:48LAX-IAD
14h 32m1 stop
Sun Country Air Logo
11:56 - 22:47IAD-LAX
13h 51m1 stop
$470Sun Country Air
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Sat, 8 Nov - Fri, 14 Nov

United Airlines flights from Los Angeles to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Los Angeles to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
4 Sept
LAX16:29Los Angeles
5h 01m
IAD00:30Washington, D.C. Dulles Intl
6 Sept
IAD20:00Washington, D.C. Dulles Intl
5h 30m
LAX22:30Los Angeles
$334
Find similar
United Airlines
31 Oct
LAX12:45Los Angeles
4h 54m
IAD20:39Washington, D.C. Dulles Intl
2 Nov
IAD05:24Washington, D.C. Dulles Intl
5h 51m
LAX08:15Los Angeles
$380
Find similar
United Airlines
29 Oct
LAX13:30Los Angeles
4h 56m
IAD21:26Washington, D.C. Dulles Intl
31 Oct
IAD18:59Washington, D.C. Dulles Intl
5h 51m
LAX21:50Los Angeles
$411
Find similar

Southwest flights from Los Angeles to Washington, D.C. Dulles Intl Airport

Our best Southwest deals on Los Angeles to Washington, D.C. Dulles Intl Airport flight tickets
Southwest
3 Sept
LAX06:50Los Angeles
7h 25m
1 stop
IAD17:15Washington, D.C. Dulles Intl
5 Sept
IAD16:30Washington, D.C. Dulles Intl
9h 40m
1 stop
LAX23:10Los Angeles
$365
Find similar
Southwest
3 Sept
LAX06:15Los Angeles
7h 00m
1 stop
IAD16:15Washington, D.C. Dulles Intl
3 Sept
IAD18:05Washington, D.C. Dulles Intl
8h 20m
1 stop
LAX23:25Los Angeles
$411
Find similar
Southwest
31 Oct
LAX08:35Los Angeles
10h 50m
1 stop
IAD22:25Washington, D.C. Dulles Intl
4 Nov
IAD07:40Washington, D.C. Dulles Intl
9h 50m
1 stop
LAX14:30Los Angeles
$419
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Los Angeles to Washington, D.C. Dulles Intl Airport 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, momondo users made 78,305 searches. Data last updated 25 August 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

Fly to

Route

Depart

Return

Price

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 4/9

16:29-00:30

Nonstop5h 01m

Washington, D.C. Dulles Intl

Sat 6/9

20:00-22:30

Nonstop5h 30m

$334

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 31/10

12:45-20:39

Nonstop4h 54m

Washington, D.C. Dulles Intl

Sun 2/11

05:24-08:15

Nonstop5h 51m

$380

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 8/10

14:27-19:07

1 stop25h 40m

Washington, D.C. Dulles Intl

Wed 15/10

06:25-14:52

1 stop11h 27m

$414

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 31/10

08:35-22:25

1 stop10h 50m

Washington, D.C. Dulles Intl

Sun 2/11

19:50-00:05

1 stop7h 15m

$419

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 19/10

00:09-19:14

2 stops16h 05m

Washington, D.C. Dulles Intl

Mon 27/10

10:04-18:05

1 stop11h 01m

$436

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 6/11

18:10-10:59

1 stop13h 49m

Washington, D.C. Dulles Intl

Fri 14/11

11:56-22:47

1 stop13h 51m

$439

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 17/9

12:00-00:23

1 stop9h 23m

Washington, D.C. Dulles Intl

Wed 24/9

18:09-09:47

1 stop18h 38m

$456

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 30/10

07:45-17:40

1 stop6h 55m

Washington, D.C. Dulles Intl

Sun 2/11

19:50-00:05

1 stop7h 15m

$457

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 24/9

10:00-00:23

1 stop11h 23m

Washington, D.C. Dulles Intl

Mon 29/9

17:52-07:21

2 stops16h 29m

$459

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 8/11

18:16-11:48

1 stop14h 32m

Washington, D.C. Dulles Intl

Fri 14/11

11:56-22:47

1 stop13h 51m

$470

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Los Angeles to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

The cheapest month to fly to Washington, D.C. Dulles Intl Airport from Los Angeles is in May. Flight prices, which tend to average around $503, are often lower during this time because this is during the off-season. If you’re not able to fly to Washington, D.C. Dulles Intl Airport in May, then July is your next best option. Flight prices from Los Angeles to Washington, D.C. Dulles Intl Airport during July average around $519.

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

According to our data, Thursday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Los Angeles. The lowest ticket price found for a Thursday departure recently was $370. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Monday is $795.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is in the morning when flights can be purchased for as low as $503. Flights to Washington, D.C. Dulles Intl Airport are more costly in the evening, with an average ticket price of $596. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Los Angeles to Washington, D.C. Dulles Intl flight route?

Fly from Los Angeles to Washington, D.C. Dulles Intl for the best Los Angeles - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Los Angeles when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $597 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Los Angeles for as low as $491 on momondo.

What cabin class options are available on Los Angeles to Washington, D.C. Dulles Intl flights?

There are 2 cabin classes available to choose from on Los Angeles to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Los Angeles to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 17% on your flight if you consider stops on a Los Angeles to Washington, D.C. Dulles Intl Airport flight.

How have Los Angeles to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of August 2025, prices for Los Angeles to Washington, D.C. Dulles Intl Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Los Angeles to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Los Angeles to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Los Angeles to Washington, D.C. Dulles Intl Airport (LAX to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Los Angeles to Washington, D.C. Dulles Intl Airport

Fastest flight time

4h 41m

Direct flights

Every day
The fastest flight from Los Angeles to Washington, D.C. Dulles Intl Airport takes 4h 41m
Direct flights go from Los Angeles to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • How far is Los Angeles to Washington, D.C. Dulles Intl by plane?

    A flight from Los Angeles to Washington, D.C. Dulles Intl will travel around 3659.7 km. By plane, this route typically takes 4h 54m.

  • When did momondo last update prices for flights from Los Angeles Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Los Angeles Airport to Washington, D.C. Dulles Intl Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Los Angeles Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Los Angeles Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's licence and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Los Angeles to Washington, D.C. Dulles Intl Airport?

Travelling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
McLean
Linthicum Heights
Winchester
Arlington

Why use momondo?

Why should I use momondo to find a flight deal from Los Angeles to Washington, D.C.?

It is quick and easy to find Los Angeles to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

Can I find flights from Los Angeles to Washington, D.C. with flexible booking policies on momondo?

momondo does allow users to show only those flights to Washington, D.C. from Los Angeles which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Los Angeles to Washington, D.C.?

Once you have performed a search for Los Angeles to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Los Angeles to Washington, D.C. right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Los Angeles and alert you when they change.

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

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