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Dulles Intl

$120+ Cheap flights from California to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap flight deals from California to Dulles Intl

Cheapest flights from California to Dulles Intl
Explore the most affordable flight options available from California to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 9, 2026.

This CheapOair deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:34 pm
ONT
-
IAD
1 stop13h 51m
Frontier
Sat 7/49:35 am
IAD
-
ONT
1 stop13h 16m
Frontier
Deal found 6/6$252
This Cheapflightsfares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Tue 7/219:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/5$270
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/102:25 pm
LAS
-
IAD
1 stop7h 20m
United Airlines
Sun 7/128:10 pm
IAD
-
LAS
Nonstop5h 09m
United Airlines
Deal found 6/9$274
This Frontier deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:59 pm
LAS
-
IAD
1 stop7h 17m
Frontier
Sat 8/299:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Deal found 6/8$275
This Kiwi.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1712:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Tue 7/218:33 pm
IAD
-
LAS
1 stop26h 53m
Frontier
Deal found 6/4$276
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:59 pm
LAX
-
IAD
Nonstop4h 53m
United Airlines
Tue 8/187:00 am
IAD
-
LAX
Nonstop5h 34m
United Airlines
Deal found 6/4$276
This Frontier deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2312:50 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Sat 7/119:30 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/4$277
This Expedia deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:46 am
LAS
-
IAD
Nonstop4h 34m
Frontier
Wed 8/129:50 am
IAD
-
LAS
Nonstop4h 55m
Frontier
Deal found 6/6$278
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:30 am
LAX
-
IAD
1 stop22h 50m
Frontier
Wed 8/199:20 am
IAD
-
LAX
1 stop13h 00m
Frontier
Deal found 6/5$279
This Cheapflightsfares deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:15 am
LAS
-
IAD
Nonstop4h 35m
Frontier
Tue 8/259:20 am
IAD
-
LAS
Nonstop4h 58m
Frontier
Deal found 6/5$280
This Trip.com deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:30 am
LAX
-
IAD
1 stop22h 50m
Frontier
Mon 7/209:50 am
IAD
-
LAX
1 stop13h 24m
Frontier
Deal found 6/8$282
This Delta deal was found by Cheapflights users on 6/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1410:00 pm
ONT
-
IAD
1 stop9h 04m
Delta
Thu 8/203:03 pm
IAD
-
ONT
1 stop9h 49m
Delta
Deal found 6/8$282

Find flight deals from California to Dulles Intl

Keep the following information in mind while searching for California to Dulles Intl flight deals. Data was last updated June 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$252
(CheapOair)

One-way from

$120
(Frontier)

Popular in

March

Cheapest in

August

Average price

$385

Good round-trip deal

$410 or less

Good one-way deal

$241 or less
Provider with most accurate pricing for Los Angeles Los Angeles-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles Los Angeles-Washington, D.C. (WAS) flights.
Search Deals
From California to Washington, D.C. Dulles Intl
Search Deals
One-way flight from California to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($38 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals
Price to beat on a round-trip flight from California to Washington, D.C. Dulles Intl.
Search Deals
Price to beat on a one-way flight from California to Washington, D.C. Dulles Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from California to Dulles Intl 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, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
Use the filters below to find and compare flights from California to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Fri 7/10

2:25 pm-12:45 am

1 stop7h 20m

Washington, D.C. Dulles Intl

Sun 7/12

8:10 pm-10:19 pm

Nonstop5h 09m

$274

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Tue 7/14

8:12 pm-6:45 pm

1 stop19h 33m

Washington, D.C. Dulles Intl

Tue 7/21

7:53 pm-9:26 am

1 stop16h 33m

$285
Quickest round-trip

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Mon 10/19

11:55 pm-7:28 am

Nonstop4h 33m

Washington, D.C. Dulles Intl

Sat 10/24

6:00 pm-8:08 pm

Nonstop5h 08m

$289

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 8/12

11:57 pm-7:30 am

Nonstop4h 33m

Washington, D.C. Dulles Intl

Thu 8/27

6:00 pm-8:08 pm

Nonstop5h 08m

$290

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Thu 10/22

6:31 am-5:53 pm

1 stop8h 22m

Washington, D.C. Dulles Intl

Tue 10/27

7:00 am-3:52 pm

1 stop11h 52m

$320

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles Los Angeles

Thu 8/27

12:49 pm-8:48 pm

Nonstop4h 59m

Washington, D.C. Dulles Intl

Mon 8/31

1:00 pm-3:23 pm

Nonstop5h 23m

$327

San JoseWashington, D.C.

SJC - IAD

SJCIAD

San Jose

Wed 6/24

1:10 pm-12:31 am

1 stop8h 21m

Washington, D.C. Dulles Intl

Tue 6/30

6:30 am-12:03 pm

1 stop8h 33m

$332

OntarioWashington, D.C.

ONT - IAD

ONTIAD

Ontario

Thu 10/1

12:12 pm-11:59 pm

1 stop8h 47m

Washington, D.C. Dulles Intl

Tue 10/6

7:00 am-1:19 pm

1 stop9h 19m

$337

OntarioWashington, D.C.

ONT - IAD

ONTIAD

Ontario

Fri 8/28

7:05 am-6:28 pm

1 stop8h 23m

Washington, D.C. Dulles Intl

Mon 8/31

7:00 am-12:16 pm

1 stop8h 16m

$351

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

Wed 7/8

11:11 am-6:45 pm

1 stop28h 34m

Washington, D.C. Dulles Intl

Tue 7/14

7:53 pm-10:31 am

1 stop17h 38m

$355

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/5

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from California to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from California with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from California to Washington, D.C. Dulles Intl Airport

What is the cheapest month to book a flight from California to Washington, D.C. Dulles Intl Airport?

Currently, October is the cheapest month in which you can book a flight from California to Washington, D.C. Dulles Intl Airport (average of $386). Flying from California to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $975). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from CA to IAD?

Find hourly flight availability from California to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 9, 2026.

When flying from California to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 42% versus a flight in the morning.

Weekly flight availability from California to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from California to Dulles Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 9, 2026.

The most flights from USCA to IAD are scheduled on a Monday (39 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (16 on average).

How much does it cost to fly round-trip from California to Washington, D.C. Dulles Intl Airport?

How far ahead should I book a flight from California to Washington, D.C. Dulles Intl Airport?

To ensure you get the cheapest price possible for a flight from California to Washington, D.C. Dulles Intl Airport, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest day to fly from California to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from California to Dulles Intl. Price data was last updated on May 30, 2026.

Travelers seeking maximum savings on their California to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

Find useful and relevant information for your journey from California to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from California to Washington, D.C. Dulles Intl Airport?

    Frontier, United Airlines, and Alaska Airlines can get you from California to Washington, D.C. Dulles Intl Airport in just under 4h 34m. Your travel time can differ by up to 14h 59m. There are 2059 mi between California and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from California to Washington, D.C. Dulles Intl Airport one-way?

    $55 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on American Airlines and Breeze Airways, with prices starting from $86 and $95, respectively.

  • What are the most popular routes from California to Washington, D.C. Dulles Intl Airport?

    Most travelers choose Los Angeles Los Angeles - Washington, D.C. Dulles Intl, San Francisco - Washington, D.C. Dulles Intl or Ontario - Washington, D.C. Dulles Intl when deciding on the best route from California to Washington, D.C. Dulles Intl Airport.

  • What are the most reliable airlines from California to Washington, D.C. Dulles Intl Airport?

    Before booking your flight to Washington, D.C. Dulles Intl Airport from California, check out the most reliable airlines to get you to your destination on time: ITA Airways (100%), Asiana Airlines (97%), Virgin Australia( 96%).

  • What are the cheapest flights from California to Washington, D.C. Dulles Intl Airport?

    While on average a flight from California to Washington, D.C. Dulles Intl Airport is generally $1,385, our data shows the cheapest flight currently is $133. When looking at the most popular route, (Los Angeles Los Angeles - Washington, D.C. Dulles Intl), you can expect to pay $227 for that flight.

  • Can I find deals for flights from California to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on California to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from California to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from California to Dulles Intl.

  • Can I find deals for business class flights from California to Dulles Intl?

    Yes. Cheapflights offers flight deals from California to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from California to Washington, D.C. Dulles Intl Airport?

    Currently, October is the cheapest month in which you can book a flight from California to Washington, D.C. Dulles Intl Airport (average of $386). Flying from California to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $975). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Tysons
Owings Mills
Springfield
Arlington
Reston
Rockville
Herndon
Fredericksburg
Hyattsville
Manassas
Hanover
Chantilly
Laurel
Falls Church
Waldorf
Silver Spring
Largo
Clinton
Hunt Valley

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for California to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Dulles Intl flights
Dallas/Fort Worth to Baltimore flights
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
Hobby to Baltimore flights
Seattle to Dulles Intl flights
Boston to Baltimore flights
Seattle to Reagan-National flights
Dallas/Fort Worth to Reagan-National flights
Denver to Dulles Intl flights
Atlanta to Baltimore flights
O'Hare Intl to Reagan-National flights
Hobby to Reagan-National flights
Atlanta to Reagan-National flights
San Francisco to Dulles Intl flights
Boston to Reagan-National flights
Seattle to Baltimore flights
Denver to Baltimore flights
Atlanta to Dulles Intl flights
Boston to Dulles Intl flights
San Francisco to Baltimore flights
San Francisco to Reagan-National flights
George Bush Intcntl to Baltimore flights
O'Hare Intl to Dulles Intl flights
O'Hare Intl to Baltimore flights
Tampa to Dulles Intl flights
Hobby to Dulles Intl flights
Orlando to Dulles Intl flights
Ontario to Dulles Intl flights
Minneapolis to Reagan-National flights
Tampa to Baltimore flights
Minneapolis to Dulles Intl flights
Orlando to Baltimore flights
George Bush Intcntl to Reagan-National flights
George Bush Intcntl to Dulles Intl flights
Austin to Dulles Intl flights
Orlando to Reagan-National flights
Denver to Reagan-National flights
Austin to Baltimore flights
Detroit to Baltimore flights
Fort Lauderdale to Baltimore flights
Tampa to Reagan-National flights
Sky Harbor Intl to Dulles Intl flights
John F Kennedy Intl to Dulles Intl flights
San Diego to Dulles Intl flights
Ontario to Baltimore flights
Austin to Reagan-National flights
John F Kennedy Intl to Reagan-National flights
Miami to Reagan-National flights

Top 8 airlines flying from California to Dulles Intl

Discover the top 8 airlines that operate flights from California to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$128Average$399FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$129Average$283FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$383FlexibilityNo cancel feeOn-time85%
American AirlinesCheapest$172Average$453FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$196Average$416FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$236Average$504FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$237Average$394FlexibilityNo cancel feeOn-time75%
JetBlueCheapest$271Average$425FlexibilityNo cancel feeOn-time62%

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