$99 Cheap Flights from Washington (IAD) to Los Angeles (LAX)

View $99 flight on Sun, Aug 31, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. (LAX)

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Cheap Flights from Washington to Los Angeles (IAD-LAX)

Prices were available within the past 7 days and start at $99 for one-way flights and $210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Sun, Aug 31 - Thu, Sep 4
IAD
Washington
LAX
Los Angeles
$210 Roundtrip, just found
$210
Roundtrip
just found
Select United flight, departing Sun, Aug 31 from Washington to Los Angeles, returning Thu, Sep 4, priced at $210 just found
Southwest Airlines
Sun, Aug 31 - Thu, Sep 4
IAD
Washington
LAX
Los Angeles
$211 Roundtrip, just found
$211
Roundtrip
just found
Select Southwest Airlines flight, departing Sun, Aug 31 from Washington to Los Angeles, returning Thu, Sep 4, priced at $211 just found
Frontier Airlines
Thu, Aug 28 - Sun, Aug 31
IAD
Washington
LAX
Los Angeles
$213 Roundtrip, found 2 hours ago
$213
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Aug 28 from Washington to Los Angeles, returning Sun, Aug 31, priced at $213 found 2 hours ago
Frontier Airlines
Thu, Aug 21 - Sun, Sep 7
IAD
Washington
LAX
Los Angeles
$215 Roundtrip, found 2 days ago
$215
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Thu, Aug 21 from Washington to Los Angeles, returning Sun, Sep 7, priced at $215 found 2 days ago
Frontier Airlines
Thu, Aug 28 - Sun, Aug 31
IAD
Washington
LAX
Los Angeles
$217 Roundtrip, found 2 hours ago
$217
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Thu, Aug 28 from Washington to Los Angeles, returning Sun, Aug 31, priced at $217 found 2 hours ago
Frontier Airlines
Fri, Aug 29 - Sat, Sep 6
IAD
Washington
LAX
Los Angeles
$218 Roundtrip, found 13 hours ago
$218
Roundtrip
found 13 hours ago
Select Frontier Airlines flight, departing Fri, Aug 29 from Washington to Los Angeles, returning Sat, Sep 6, priced at $218 found 13 hours ago
Frontier Airlines
Fri, Aug 29 - Mon, Sep 8
IAD
Washington
LAX
Los Angeles
$219 Roundtrip, found 11 hours ago
$219
Roundtrip
found 11 hours ago
Select Frontier Airlines flight, departing Fri, Aug 29 from Washington to Los Angeles, returning Mon, Sep 8, priced at $219 found 11 hours ago
United
Sun, Aug 31 - Thu, Sep 4
IAD
Washington
LAX
Los Angeles
$221 Roundtrip, just found
$221
Roundtrip
just found
Select United flight, departing Sun, Aug 31 from Washington to Los Angeles, returning Thu, Sep 4, priced at $221 just found
Hawaiian Airlines
Wed, Nov 5 - Sat, Nov 8
IAD
Washington
LAX
Los Angeles
$256 Roundtrip, found 6 days ago
$256
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Nov 5 from Washington to Los Angeles, returning Sat, Nov 8, priced at $256 found 6 days ago
Sun Country Airlines
Tue, Jul 29 - Fri, Aug 1
IAD
Washington
LAX
Los Angeles
$337 Roundtrip, just found
$337
Roundtrip
just found
Select Sun Country Airlines flight, departing Tue, Jul 29 from Washington to Los Angeles, returning Fri, Aug 1, priced at $337 just found

Find the cheapest month to fly from Washington (IAD) to Los Angeles (LAX)

January is typically the cheapest month to fly

From $138 - $347 per traveler.

Graph displaying average flight prices per month

Flights from Washington (IAD) to Los Angeles (LAX)
Origin airport
Washington Dulles Intl.
Destination airport
Los Angeles Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Roundtrip price
$210
Distance
2282 mi
Average flight time
2 hours 26 mins

Washington to Los Angeles Flights

The cheapest times to fly from Washington to Los Angeles

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Los Angeles are during the month of August. You can find some of the cheapest flights from Washington to Los Angeles with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Los Angeles

Sunday is one of the best days to book for cheap flights from Washington to Los Angeles: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Los Angeles

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Los Angeles in 2025. You can also book with separate airlines for your outbound and return journeys, from $99 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Los Angeles flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Los Angeles airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX) cost?
You can score cheap return fares from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX) starting from $169. Book your seat and set off on your next adventure. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a United and Spirit Airlines flight leaving IAD on July 24 2025 and touching down at LAX. The price was last updated on June 29 2025 and has not changed since.
What is the cheapest month to fly from IAD to LAX?
The cheapest flights from IAD to LAX are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
You can fly straight from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX) on a United Airlines flight.
What is the cheapest airline that flies from IAD to LAX?
With prices starting from $99 for a one-way journey from IAD to LAX, United is currently the cheapest airline on this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from IAD on August 31 2025. Prices were last updated on June 29 2025 and have not changed since.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
Daily, an average of 4 direct flights operate from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX). Choose the departure that best suits your travel plans.
What are the most popular departure times for flights from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
Flights between IAD and LAX are their busiest at 5 PM. If you want a more relaxed experience and possibly cheaper prices, look for a departure that's outside typical rush times.
What day of the week has the most flights from IAD to LAX?
Friday has the most flights from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX). Consider jetting off on this day and you'll have the best chance of finding a departure that fits your plans.
What is the earliest flight from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
Hop on the earliest flight at around 8:45AM UTC-5, leaving from Washington Dulles Intl. Airport (IAD). You'll be traveling for about 5h 52m, landing at Los Angeles Intl. Airport (LAX) at approximately 11:37AM UTC-8.
How long does it take to fly from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
It takes roughly 5 hours and 47 minutes to fly the 2,300 mi from IAD to LAX.
What airline has the least delays from IAD to LAX?
Consider booking with American Airlines if you'd like to go straight from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX) without any delays. This carrier has the strongest track record for punctuality, with an on-time score of 84%. Want real-time updates? You can check your flight status using the Expedia App.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
To arrive at Los Angeles Intl. Airport (LAX) on time, select a flight that leaves Washington Dulles Intl. Airport (IAD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Los Angeles from Washington Dulles Intl. Airport (IAD)?
Check out your flight options from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX). This is the only Los Angeles airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX) last-minute?
Booking your flight from IAD to LAX just before your getaway is generally more expensive. But if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book an IAD to LAX flight and hotel package?
You'll generally save money by booking an IAD to LAX flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, you can add extras like car rentals, tours and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Los Angeles Intl. Airport (LAX)?
You can usually cancel or reschedule your IAD to LAX flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

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