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Cheap flights from Los Angeles to Washington, D.C. from $179

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 15/11. 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

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Frontier Logo
22:30 - 14:29LAX-IAD
12h 59m1 stop
Frontier Logo
05:45 - 12:47IAD-LAX
10h 02m1 stop
$355Frontier
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Mon, 1 Dec - Mon, 8 Dec
Multiple Airlines Logo
22:40 - 14:29LAX-IAD
12h 49m1 stop
Multiple Airlines Logo
16:00 - 18:38IAD-LAX
29h 38m2 stops
$359Multiple Airlines
Find Deal
Mon, 1 Dec - Mon, 8 Dec
Southwest Logo
05:40 - 15:45LAX-IAD
7h 05m1 stop
Southwest Logo
15:55 - 20:20IAD-LAX
7h 25m1 stop
$365Southwest
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Thu, 4 Dec - Sat, 6 Dec
Southwest Logo
08:35 - 22:00LAX-IAD
10h 25m2 stops
Southwest Logo
15:55 - 20:20IAD-LAX
7h 25m1 stop
$372Southwest
Find Deal
Thu, 4 Dec - Sat, 6 Dec
Southwest Logo
12:40 - 22:00LAX-IAD
6h 20m1 stop
Southwest Logo
17:45 - 22:15IAD-LAX
7h 30m1 stop
$380Southwest
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Wed, 17 Dec - Wed, 31 Dec
Alaska Airlines Logo
17:01 - 06:23LAX-IAD
10h 22m1 stop
Alaska Airlines Logo
07:43 - 14:08IAD-LAX
9h 25m1 stop
$394Alaska Airlines
Find Deal
Wed, 12 Nov - Tue, 18 Nov
United Airlines Logo
23:30 - 07:21LAX-IAD
4h 51mdirect
United Airlines Logo
20:04 - 22:55IAD-LAX
5h 51mdirect
$396United Airlines
Find Deal
Sat, 15 Nov - Mon, 17 Nov
United Airlines Logo
22:57 - 06:48LAX-IAD
4h 51mdirect
United Airlines Logo
22:08 - 00:59IAD-LAX
5h 51mdirect
$411United Airlines
Find Deal
Sat, 15 Nov - Sat, 22 Nov
United Airlines Logo
23:00 - 06:51LAX-IAD
4h 51mdirect
United Airlines Logo
18:00 - 20:38IAD-LAX
5h 38mdirect
$412United Airlines
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Wed, 10 Dec - Wed, 17 Dec
Alaska Airlines Logo
15:58 - 06:23LAX-IAD
11h 25m1 stop
Alaska Airlines Logo
07:43 - 14:08IAD-LAX
9h 25m1 stop
$425Alaska Airlines
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Thu, 13 Nov - Tue, 18 Nov

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
4 Dec
LAX05:40Los Angeles
7h 05m
1 stop
IAD15:45Washington, D.C. Dulles Intl
6 Dec
IAD15:55Washington, D.C. Dulles Intl
7h 25m
1 stop
LAX20:20Los Angeles
$365
Find similar
Southwest
4 Dec
LAX08:35Los Angeles
10h 25m
2 stops
IAD22:00Washington, D.C. Dulles Intl
6 Dec
IAD15:55Washington, D.C. Dulles Intl
7h 25m
1 stop
LAX20:20Los Angeles
$372
Find similar
Southwest
17 Dec
LAX12:40Los Angeles
6h 20m
1 stop
IAD22:00Washington, D.C. Dulles Intl
31 Dec
IAD17:45Washington, D.C. Dulles Intl
7h 30m
1 stop
LAX22:15Los Angeles
$380
Find similar

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

Our best Alaska Airlines deals on Los Angeles to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
12 Nov
LAX17:01Los Angeles
10h 22m
1 stop
IAD06:23Washington, D.C. Dulles Intl
18 Nov
IAD07:43Washington, D.C. Dulles Intl
9h 25m
1 stop
LAX14:08Los Angeles
$394
Find similar
Alaska Airlines
13 Nov
LAX15:58Los Angeles
11h 25m
1 stop
IAD06:23Washington, D.C. Dulles Intl
18 Nov
IAD07:43Washington, D.C. Dulles Intl
9h 25m
1 stop
LAX14:08Los Angeles
$425
Find similar
Alaska Airlines
26 Feb
LAX18:05Los Angeles
8h 50m
1 stop
IAD05:55Washington, D.C. Dulles Intl
10 Mar
IAD07:00Washington, D.C. Dulles Intl
10h 40m
1 stop
LAX14:40Los Angeles
$428
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 19 October 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

Mon 1/12

22:30-14:29

1 stop12h 59m

Washington, D.C. Dulles Intl

Mon 8/12

05:45-12:47

1 stop10h 02m

$355

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Mon 1/12

22:40-14:29

1 stop12h 49m

Washington, D.C. Dulles Intl

Mon 8/12

16:00-18:38

2 stops29h 38m

$359

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 4/12

05:40-15:45

1 stop7h 05m

Washington, D.C. Dulles Intl

Sat 6/12

15:55-20:20

1 stop7h 25m

$365

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 4/12

08:35-22:00

2 stops10h 25m

Washington, D.C. Dulles Intl

Sat 6/12

15:55-20:20

1 stop7h 25m

$372

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 17/12

12:40-22:00

1 stop6h 20m

Washington, D.C. Dulles Intl

Wed 31/12

17:45-22:15

1 stop7h 30m

$380

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 12/11

17:01-06:23

1 stop10h 22m

Washington, D.C. Dulles Intl

Tue 18/11

07:43-14:08

1 stop9h 25m

$394

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 15/11

23:30-07:21

Nonstop4h 51m

Washington, D.C. Dulles Intl

Mon 17/11

20:04-22:55

Nonstop5h 51m

$396

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 15/11

22:57-06:48

Nonstop4h 51m

Washington, D.C. Dulles Intl

Sat 22/11

22:08-00:59

Nonstop5h 51m

$411

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 10/12

23:00-06:51

Nonstop4h 51m

Washington, D.C. Dulles Intl

Wed 17/12

18:00-20:38

Nonstop5h 38m

$412

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 13/11

15:58-06:23

1 stop11h 25m

Washington, D.C. Dulles Intl

Tue 18/11

07:43-14:08

1 stop9h 25m

$425

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, Saturday is the cheapest day to fly to Washington, D.C. Dulles Intl Airport from Los Angeles. The lowest ticket price found for a Saturday departure recently was $548. 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 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 $601 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 $508 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 70% 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 October 2025, prices for Los Angeles to Washington, D.C. Dulles Intl Airport flights are approximately 43% 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

Best price found

$611

Fastest flight time

4h 33m

Direct flights

Every day
The best flight deal from Los Angeles to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $611
The fastest flight from Los Angeles to Washington, D.C. Dulles Intl Airport takes 4h 33m
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 41m.

  • 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
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.

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