Cheap flights from Los Angeles to Washington, D.C. from $238

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 10/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Los Angeles to Washington, D.C.

Cheap return flights

Enter your travel dates to find the best prices.
Frontier Logo
21:56 - 19:09
LAX
-
IAD
18h 13m
1 stop
Frontier Logo
20:00 - 18:48
IAD
-
LAX
25h 48m
1 stop
$403Frontier
Wed, 9 Sep - Fri, 11 Sep
United Airlines Logo
21:39 - 05:40
LAX
-
IAD
5h 01mdirect
United Airlines Logo
07:00 - 09:33
IAD
-
LAX
5h 33mdirect
$404United Airlines
Thu, 17 Sep - Sun, 27 Sep
United Airlines Logo
06:00 - 14:08
LAX
-
IAD
5h 08mdirect
United Airlines Logo
07:00 - 09:34
IAD
-
LAX
5h 34mdirect
$410United Airlines
Thu, 6 Aug - Sat, 15 Aug
United Airlines Logo
23:30 - 07:33
LAX
-
IAD
5h 03mdirect
United Airlines Logo
13:00 - 15:23
IAD
-
LAX
5h 23mdirect
$414United Airlines
Wed, 29 Jul - Sun, 30 Aug
Alaska Airlines Logo
10:50 - 23:59
LAX
-
IAD
10h 09m
1 stop
Alaska Airlines Logo
07:00 - 14:44
IAD
-
LAX
10h 44m
1 stop
$424Alaska Airlines
Wed, 16 Sep - Wed, 23 Sep
United Airlines Logo
21:20 - 05:26
LAX
-
IAD
5h 06mdirect
United Airlines Logo
08:20 - 10:52
IAD
-
LAX
5h 32mdirect
$428United Airlines
Fri, 7 Aug - Fri, 14 Aug
United Airlines Logo
23:30 - 07:33
LAX
-
IAD
5h 03mdirect
United Airlines Logo
17:42 - 20:18
IAD
-
LAX
5h 36mdirect
$437United Airlines
Wed, 29 Jul - Tue, 25 Aug
United Airlines Logo
16:49 - 00:55
LAX
-
IAD
5h 06mdirect
United Airlines Logo
22:20 - 00:57
IAD
-
LAX
5h 37mdirect
$440United Airlines
Tue, 4 Aug - Mon, 10 Aug
United Airlines Logo
23:30 - 07:33
LAX
-
IAD
5h 03mdirect
United Airlines Logo
22:23 - 00:59
IAD
-
LAX
5h 36mdirect
$441United Airlines
Wed, 29 Jul - Sun, 30 Aug
Frontier Logo
23:03 - 19:09
LAX
-
IAD
17h 06m
1 stop
Frontier Logo
20:00 - 18:48
IAD
-
LAX
25h 48m
1 stop
$447Frontier
Tue, 8 Sep - Fri, 11 Sep

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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
16 Sept
LAX10:50Los Angeles Los Angeles
10h 09m
1 stop
IAD23:59Washington, D.C. Dulles Intl
23 Sept
IAD07:00Washington, D.C. Dulles Intl
10h 44m
1 stop
LAX14:44Los Angeles Los Angeles
$424
Alaska Airlines
14 Oct
LAX16:59Los Angeles Los Angeles
9h 41m
1 stop
IAD05:40Washington, D.C. Dulles Intl
24 Oct
IAD07:00Washington, D.C. Dulles Intl
10h 34m
1 stop
LAX14:34Los Angeles Los Angeles
$465
Alaska Airlines
29 Sept
LAX15:47Los Angeles Los Angeles
10h 53m
1 stop
IAD05:40Washington, D.C. Dulles Intl
20 Oct
IAD09:35Washington, D.C. Dulles Intl
10h 17m
1 stop
LAX16:52Los Angeles Los Angeles
$469

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
17 Sept
LAX21:39Los Angeles Los Angeles
5h 01m
IAD05:40Washington, D.C. Dulles Intl
27 Sept
IAD07:00Washington, D.C. Dulles Intl
5h 33m
LAX09:33Los Angeles Los Angeles
$404
United Airlines
6 Aug
LAX06:00Los Angeles Los Angeles
5h 08m
IAD14:08Washington, D.C. Dulles Intl
15 Aug
IAD07:00Washington, D.C. Dulles Intl
5h 34m
LAX09:34Los Angeles Los Angeles
$410
United Airlines
29 July
LAX23:30Los Angeles Los Angeles
5h 03m
IAD07:33Washington, D.C. Dulles Intl
30 Aug
IAD13:00Washington, D.C. Dulles Intl
5h 23m
LAX15:23Los Angeles Los Angeles
$414

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 15 June 2026.
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

Cheapest return flight

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 9/9

21:56-19:09

1 stop18h 13m

Washington, D.C. Dulles Intl

Fri 11/9

20:00-18:48

1 stop25h 48m

$403

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 17/9

21:39-05:40

Nonstop5h 01m

Washington, D.C. Dulles Intl

Sun 27/9

07:00-09:33

Nonstop5h 33m

$404

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 6/8

06:00-14:08

Nonstop5h 08m

Washington, D.C. Dulles Intl

Sat 15/8

07:00-09:34

Nonstop5h 34m

$410
Fastest return journey

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 29/7

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Sun 30/8

13:00-15:23

Nonstop5h 23m

$414

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 16/9

10:50-23:59

1 stop10h 09m

Washington, D.C. Dulles Intl

Wed 23/9

07:00-14:44

1 stop10h 44m

$424

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Fri 7/8

21:20-05:26

Nonstop5h 06m

Washington, D.C. Dulles Intl

Fri 14/8

08:20-10:52

Nonstop5h 32m

$428

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 29/7

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Tue 25/8

17:42-20:18

Nonstop5h 36m

$437

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Tue 4/8

16:49-00:55

Nonstop5h 06m

Washington, D.C. Dulles Intl

Mon 10/8

22:20-00:57

Nonstop5h 37m

$440

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Wed 29/7

23:30-07:33

Nonstop5h 03m

Washington, D.C. Dulles Intl

Sun 30/8

22:23-00:59

Nonstop5h 36m

$441

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Tue 8/9

23:03-19:09

1 stop17h 06m

Washington, D.C. Dulles Intl

Fri 11/9

20:00-18:48

1 stop25h 48m

$447

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 typical price of a round-trip flight between Los Angeles and Washington, D.C. Dulles Intl Airport?

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 August. Flight prices, which tend to average around $527, 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 August, then October is your next best option. Flight prices from Los Angeles to Washington, D.C. Dulles Intl Airport during October average around $535.

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 $450. 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 Sunday as prices are generally higher than usual. According to our data, the average ticket price to Washington, D.C. Dulles Intl Airport on Sunday is $648.

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 evening when flights can be purchased for as low as $454. Flights to Washington, D.C. Dulles Intl Airport are more costly in the morning, with an average ticket price of $577. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

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

How far in advance should I book a flight from Los Angeles 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 $606 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 $462 on momondo.

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

There are 2 cabin classes available to choose from on Los Angeles to Washington, D.C. Dulles Intl Airport 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?

No. A direct flight is the cheapest option for a flight between Los Angeles to Washington, D.C. Dulles Intl Airport.

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

As of June 2026, prices for Los Angeles to Washington, D.C. Dulles Intl Airport flights are approximately 11% cheaper 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

$454

Fastest flight time

4h 53m

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 $454
The fastest flight from Los Angeles to Washington, D.C. Dulles Intl Airport takes 4h 53m
Direct flights go from Los Angeles to Washington, D.C. Dulles Intl Airport every day.

Frequently asked questions about flying from Los Angeles to Washington, D.C. Dulles Intl Airport

  • 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 53m.

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

    Prices for flights from Los Angeles 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 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 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

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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1 adult
Wed 15/7
Wed 22/7

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