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Cheap flights from Los Angeles to Washington, D.C. from $142

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 2/21. 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 round-trip flights

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Frontier Logo
1:51 pm - 12:36 am
LAX
-
IAD
7h 45m
1 stop
Frontier Logo
6:20 am - 12:36 pm
IAD
-
LAX
9h 16m
1 stop
$256Frontier
Thu, Apr 23 - Sun, Apr 26
Southwest Logo
6:30 am - 3:50 pm
LAX
-
IAD
6h 20m
1 stop
Southwest Logo
5:30 pm - 10:00 pm
IAD
-
LAX
7h 30m
1 stop
$257Southwest
Wed, Feb 18 - Tue, Feb 24
Frontier Logo
6:33 pm - 10:33 am
LAX
-
IAD
13h 00m
2 stops
Frontier Logo
10:23 am - 6:52 pm
IAD
-
LAX
11h 29m
1 stop
$258Frontier
Wed, Feb 18 - Fri, Feb 20
Multiple Airlines Logo
8:16 am - 12:36 am
LAX
-
IAD
13h 20m
2 stops
Multiple Airlines Logo
12:18 pm - 6:39 pm
IAD
-
LAX
9h 21m
1 stop
$260Multiple Airlines
Tue, Apr 7 - Thu, Apr 9
Frontier Logo
10:41 pm - 11:33 am
LAX
-
IAD
9h 52m
1 stop
Frontier Logo
6:20 am - 12:36 pm
IAD
-
LAX
9h 16m
1 stop
$261Frontier
Wed, Apr 8 - Tue, Apr 14
Southwest Logo
12:30 pm - 9:55 pm
LAX
-
IAD
6h 25m
1 stop
Southwest Logo
9:05 am - 5:05 pm
IAD
-
LAX
11h 00m
2 stops
$262Southwest
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
10:45 pm - 10:33 am
LAX
-
IAD
8h 48m
1 stop
Multiple Airlines Logo
7:05 am - 3:36 pm
IAD
-
LAX
11h 31m
1 stop
$263Multiple Airlines
Wed, Feb 25 - Sat, Feb 28
Multiple Airlines Logo
10:22 pm - 10:49 am
LAX
-
IAD
9h 27m
1 stop
Multiple Airlines Logo
6:37 pm - 7:15 am
IAD
-
LAX
15h 38m
1 stop
$264Multiple Airlines
Wed, Feb 11 - Mon, Feb 16
Frontier Logo
5:14 pm - 9:25 am
LAX
-
IAD
13h 11m
1 stop
Frontier Logo
6:52 pm - 6:52 pm
IAD
-
LAX
27h 00m
1 stop
$265Frontier
Thu, Feb 12 - Thu, Feb 19
Multiple Airlines Logo
1:05 am - 6:25 pm
LAX
-
IAD
14h 20m
1 stop
Multiple Airlines Logo
10:23 am - 6:52 pm
IAD
-
LAX
11h 29m
1 stop
$266Multiple Airlines
Sat, Feb 14 - Fri, Feb 20

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
Feb 19
LAX4:05 pmLos Angeles
4h 51m
IAD11:56 pmWashington, D.C. Dulles Intl
Feb 25
IAD10:05 pmWashington, D.C. Dulles Intl
6h 04m
LAX1:09 amLos Angeles
$257
United Airlines
May 13
LAX9:35 pmLos Angeles
5h 05m
IAD5:40 amWashington, D.C. Dulles Intl
May 17
IAD10:11 pmWashington, D.C. Dulles Intl
5h 44m
LAX12:55 amLos Angeles
$289
United Airlines
Mar 12
LAX4:37 pmLos Angeles
4h 51m
IAD12:28 amWashington, D.C. Dulles Intl
Mar 15
IAD10:05 pmWashington, D.C. Dulles Intl
6h 04m
LAX1:09 amLos Angeles
$300

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

Our best Frontier deals on Los Angeles to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Apr 23
LAX1:51 pmLos Angeles
7h 45m
1 stop
IAD12:36 amWashington, D.C. Dulles Intl
Apr 26
IAD6:20 amWashington, D.C. Dulles Intl
9h 16m
1 stop
LAX12:36 pmLos Angeles
$256
Frontier
Feb 18
LAX6:33 pmLos Angeles
13h 00m
2 stops
IAD10:33 amWashington, D.C. Dulles Intl
Feb 20
IAD10:23 amWashington, D.C. Dulles Intl
11h 29m
1 stop
LAX6:52 pmLos Angeles
$258
Frontier
Apr 8
LAX10:41 pmLos Angeles
9h 52m
1 stop
IAD11:33 amWashington, D.C. Dulles Intl
Apr 14
IAD6:20 amWashington, D.C. Dulles Intl
9h 16m
1 stop
LAX12:36 pmLos Angeles
$261

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated January 28, 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

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 4/23

1:51 pm-12:36 am

1 stop7h 45m

Washington, D.C. Dulles Intl

Sun 4/26

6:20 am-12:36 pm

1 stop9h 16m

$256

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 2/18

6:30 am-3:50 pm

1 stop6h 20m

Washington, D.C. Dulles Intl

Tue 2/24

5:30 pm-10:00 pm

1 stop7h 30m

$257

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 2/18

6:33 pm-10:33 am

2 stops13h 00m

Washington, D.C. Dulles Intl

Fri 2/20

10:23 am-6:52 pm

1 stop11h 29m

$258

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 4/7

8:16 am-12:36 am

2 stops13h 20m

Washington, D.C. Dulles Intl

Thu 4/9

12:18 pm-6:39 pm

1 stop9h 21m

$260

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 4/8

10:41 pm-11:33 am

1 stop9h 52m

Washington, D.C. Dulles Intl

Tue 4/14

6:20 am-12:36 pm

1 stop9h 16m

$261

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 2/18

12:30 pm-9:55 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Wed 2/25

9:05 am-5:05 pm

2 stops11h 00m

$262

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 2/25

10:45 pm-10:33 am

1 stop8h 48m

Washington, D.C. Dulles Intl

Sat 2/28

7:05 am-3:36 pm

1 stop11h 31m

$263

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 2/11

10:22 pm-10:49 am

1 stop9h 27m

Washington, D.C. Dulles Intl

Mon 2/16

6:37 pm-7:15 am

1 stop15h 38m

$264

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 2/12

5:14 pm-9:25 am

1 stop13h 11m

Washington, D.C. Dulles Intl

Thu 2/19

6:52 pm-6:52 pm

1 stop27h 00m

$265

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 2/14

1:05 am-6:25 pm

1 stop14h 20m

Washington, D.C. Dulles Intl

Fri 2/20

10:23 am-6:52 pm

1 stop11h 29m

$266

Flights are sorted by cheapest round-trip 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?

In general, May is the cheapest month to fly from Los Angeles to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $327. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of May, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $337.

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

Our data shows that Wednesday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $418. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Los Angeles to Washington, D.C. Dulles Intl Airport for around $553.

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

Flying to Washington, D.C. Dulles Intl Airport from Los Angeles in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $382 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $560 on average. Flights to Washington, D.C. Dulles Intl Airport from Los Angeles at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $392 when searching weeks out. 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 $292 on momondo.

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

There are 4 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 25% 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 January 2026, prices for Los Angeles to Washington, D.C. Dulles Intl Airport flights are approximately 4% 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 round-trip 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

$208

Fastest flight time

4h 33m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Los Angeles in the past 72 hours is $208. The best round-trip flight deal from Los Angeles to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $348.
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?

    Washington, D.C. Dulles Intl is 2274.0 mi away from Los Angeles. Typically, this will take 4h 33m by plane in normal conditions.

  • 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 updated daily.

  • How many operators does momondo search for flights from Los Angeles Airport to Washington, D.C. Dulles Intl Airport?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for 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 travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Los Angeles to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Los Angeles to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $50Free CancellationRating
6.3
8,387 reviews
Search Spirit Airlines flights
FrontierPriceFrom $102Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $113Free CancellationRating
7.8
2,830 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $168Free CancellationRating
7.9
8,123 reviews
Search Delta flights
Alaska AirlinesPriceFrom $227Free CancellationRating
8.0
11,801 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $227Free CancellationRating
7.4
9,209 reviews
Search United Airlines flights
SouthwestPriceFrom $247Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
American AirlinesPriceFrom $356Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights

  • United Airlines Flights From Los Angeles to Washington, D.C. Dulles Intl Airport

    The lowest priced United Airlines flight from Los Angeles to Washington, D.C. Dulles Intl Airport from the last 72 hours was $227. Generally, United Airlines has 29 flights on this route every week with an average price of $402. United Airlines is rated 7.4/10 by our users.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
National Harbor
Gettysburg
Arlington
Winchester
Waldorf
Woodbridge
Tysons
Laurel
Colonial Beach
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Sterling
Fairfax
Linthicum Heights

Why use momondo?

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

Finding the right flight to Washington, D.C. from Los Angeles is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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?

Of course. momondo tracks the price of Los Angeles to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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

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