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Dulles Intl

$139+ Cheap flights from Irvine, CA 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 4/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
mrt. 7 — mrt. 141
za 3/7
za 3/14
1 adult, Economy
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Cheapflights Tip: The best prices from Irvine to Washington, D.C. Dulles Intl are usually found in May or July, booked 82 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Cheap flight deals from Irvine to Dulles Intl

Cheapest flights from Irvine to Dulles Intl
Explore the most affordable flight options available from Irvine to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on februari 5, 2026.

This Frontier deal was found by Cheapflights users on 2/2. 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.
za 5/210:07 pm
LAX
-
IAD
1 stop7h 49m
Frontier
zo 5/108:09 am
IAD
-
LAX
1 stop13h 30m
Frontier
Deal found 2/2$255
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
wo 3/188:18 am
LAX
-
IAD
2 stops13h 03m
Multiple Airlines
wo 3/256:20 am
IAD
-
LAX
1 stop9h 40m
Multiple Airlines
Deal found 2/3$256
This Southwest deal was found by Cheapflights users on 2/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 3/25:00 am
LAX
-
IAD
1 stop9h 00m
Southwest
wo 3/45:30 pm
IAD
-
LAX
1 stop7h 30m
Southwest
Deal found 2/4$257
This Frontier deal was found by Cheapflights users on 2/3. 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.
do 2/195:14 pm
LAX
-
IAD
1 stop13h 11m
Frontier
zo 2/227:20 pm
IAD
-
LAX
1 stop15h 19m
Frontier
Deal found 2/3$258
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
do 3/56:20 am
LAX
-
IAD
2 stops22h 04m
Frontier
di 3/107:00 am
IAD
-
LAX
1 stop9h 00m
Frontier
Deal found 2/2$259
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
vr 2/2710:50 pm
LAX
-
IAD
1 stop7h 44m
Multiple Airlines
za 3/75:05 am
IAD
-
LAX
2 stops20h 35m
Multiple Airlines
Deal found 2/2$260
This Kiwi.com deal was found by Cheapflights users on 2/2. 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.
za 2/282:31 pm
LAX
-
IAD
2 stops16h 59m
Frontier
di 3/107:00 am
IAD
-
LAX
1 stop9h 00m
Frontier
Deal found 2/2$261
This Southwest deal was found by Cheapflights users on 2/5. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma 3/27:35 am
LAX
-
IAD
1 stop6h 25m
Southwest
zo 3/85:05 am
IAD
-
LAX
1 stop11h 55m
Southwest
Deal found 2/5$262
This Kiwi.com deal was found by Cheapflights users on 2/3. 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.
ma 3/96:00 pm
LAX
-
IAD
1 stop8h 40m
Multiple Airlines
wo 3/186:20 am
IAD
-
LAX
1 stop9h 40m
Multiple Airlines
Deal found 2/3$263
This Expedia deal was found by Cheapflights users on 2/3. 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.
vr 2/2010:50 pm
LAX
-
IAD
1 stop7h 44m
Multiple Airlines
di 2/247:05 am
IAD
-
LAX
1 stop11h 31m
Multiple Airlines
Deal found 2/3$264
This United Airlines deal was found by Cheapflights users on 2/4. 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.
do 5/74:42 pm
LAX
-
IAD
Nonstop5h 03m
United Airlines
zo 5/1010:11 pm
IAD
-
LAX
Nonstop5h 44m
United Airlines
Deal found 2/4$265
This Frontier deal was found by Cheapflights users on 2/4. 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.
vr 2/2010:50 pm
LAX
-
IAD
1 stop7h 44m
Frontier
ma 2/2310:20 am
IAD
-
LAX
1 stop10h 14m
Frontier
Deal found 2/4$266

Find flight deals from Irvine to Dulles Intl

Keep the following information in mind while searching for Irvine to Dulles Intl flight deals. Data was last updated februari 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$255
(Frontier)

One-way from

$139
(United Airlines)

Popular in

December

Cheapest in

May

Average price

$397
Provider with most accurate pricing for Los Angeles-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Washington, D.C. (WAS) flights.
Search Deals
From Irvine to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Irvine to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($65 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Irvine 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 februari 5, 2026.
Use the filters below to find and compare flights from Irvine to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Irvine

Fly to

Dulles Intl

Route

Depart

Return

Price

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

za 2/28

5:45 am-3:45 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

zo 3/1

3:25 pm-10:45 pm

1 stop10h 20m

$257

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

wo 4/1

6:30 am-5:20 pm

1 stop7h 50m

Washington, D.C. Dulles Intl

zo 4/5

5:05 pm-12:20 am

1 stop10h 15m

$257

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

vr 5/8

5:10 am-5:05 pm

1 stop8h 55m

Washington, D.C. Dulles Intl

zo 5/10

4:25 pm-9:55 pm

1 stop8h 30m

$257

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

di 3/3

7:50 am-9:55 pm

2 stops11h 05m

Washington, D.C. Dulles Intl

vr 3/6

7:35 pm-12:15 am

1 stop7h 40m

$262

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

di 3/10

8:45 am-4:29 pm

Nonstop4h 44m

Washington, D.C. Dulles Intl

do 3/12

10:05 pm-1:09 am

Nonstop6h 04m

$277

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

ma 2/23

5:00 am-5:00 pm

1 stop9h 00m

Washington, D.C. Dulles Intl

wo 2/25

9:05 am-2:40 pm

1 stop8h 35m

$287

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

do 2/26

9:30 am-11:10 pm

2 stops10h 40m

Washington, D.C. Dulles Intl

wo 3/4

9:05 am-2:40 pm

1 stop8h 35m

$292

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

za 2/28

10:00 am-9:45 pm

1 stop8h 45m

Washington, D.C. Dulles Intl

wo 3/4

9:05 am-4:15 pm

2 stops10h 10m

$292

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

vr 2/27

1:50 pm-11:10 pm

1 stop6h 20m

Washington, D.C. Dulles Intl

zo 3/1

7:00 pm-11:45 pm

1 stop7h 45m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

ma 3/9

2:45 pm-12:15 am

1 stop6h 30m

Washington, D.C. Dulles Intl

vr 3/13

4:50 pm-10:30 pm

1 stop8h 40m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 21 results
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Best time to book a flight from Irvine to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Irvine 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 Irvine to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Irvine to Dulles Intl. Price data was last updated on January 30, 2026.

Booking 82 days in advance of your planned departure date is, on average, the best time to get cheap flights from Irvine to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, June is the cheapest month in which you can book a flight from Irvine to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Irvine to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $267). 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 IR9 to IAD?

Find hourly flight availability from Irvine 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 februari 5, 2026.

A simple way to save on the total cost of your ticket is to fly from Irvine to Washington, D.C. Dulles Intl Airport in the afternoon. If you’re flexible enough to do this you can expect to save up to 31% on your trip compared to booking a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Irvine to Dulles Intl. Price data was last updated on January 31, 2026.

Travelers seeking maximum savings on their Irvine to Washington, D.C. Dulles Intl Airport flight should consider departing on Tuesday 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.

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

Explore weekly flight availability from Irvine 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 februari 5, 2026.

The most flights from IR9 to IAD are scheduled on a Thursday (26 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (15 on average).

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

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated februari 5, 2026.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Hawaiian Airlines from Irvine to Washington, D.C. Dulles Intl Airport. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,843 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,276 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Hawaiian Airlines
7.8
Good
2,831 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,241 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Frontier
5.7
Fair
3,053 reviews
Alaska Airlines
8.0
Very good
11,843 reviews

Food

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

Related info for your journey

Find useful and relevant information for your journey from Irvine 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 Irvine to Washington, D.C. Dulles Intl Airport?

    Airlines like Southwest and United Airlines fly from Irvine to Washington, D.C. Dulles Intl Airport in about 4h 44m. The time it takes to get you to your destination can typically vary by up to 2h 16m. The distance from Irvine to Washington, D.C. Dulles Intl Airport is about 2282 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $48. Frontier flights start at $72 while deals on Southwest start at $99 one-way.

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

    Before booking your flight to Washington, D.C. Dulles Intl Airport from Irvine, check out the most reliable airlines to get you to your destination on time: Egyptair (92%), Asiana Airlines (88%), Air New Zealand( 85%).

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

    The cheapest flight price from Irvine to Washington, D.C. Dulles Intl Airport is $146. On average you can expect to pay $1,116. The most popular route, (Los Angeles - Washington, D.C. Dulles Intl), can usually be booked for $229.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Irvine 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 Irvine to Washington, D.C. Dulles Intl Airport?

    Currently, June is the cheapest month in which you can book a flight from Irvine to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Irvine to Washington, D.C. Dulles Intl Airport in November is currently the most expensive (average of $267). 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
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Upper Marlboro
Manassas
Largo
Bowie
McLean
Clinton

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Irvine to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Las Vegas to Reagan-National flights
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San Jose to Reagan-National flights
Santa Ana to Baltimore flights
Santa Ana to Reagan-National flights
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Fresno to Reagan-National flights
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Burbank to Reagan-National flights
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Reno to Reagan-National flights
Long Beach to Dulles Intl flights
Palm Springs to Baltimore flights
Fresno to Baltimore flights
Palm Springs to Reagan-National flights
Reno to Baltimore flights
Santa Barbara to Dulles Intl flights
Long Beach to Baltimore flights
Santa Barbara to Reagan-National flights
Monterey to Reagan-National flights
Monterey to Baltimore flights
San Luis Obispo to Reagan-National flights
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Bakersfield to Dulles Intl flights
San Luis Obispo to Baltimore flights
San Luis Obispo to Dulles Intl flights

Top 8 airlines flying from Irvine to Dulles Intl

Discover the top 8 airlines that operate flights from Irvine 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 februari 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$50Average$180FlexibilityNo cancel feeOn-time65%
FrontierCheapest$102Average$274FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$113Average$315FlexibilityNo cancel feeOn-time85%
DeltaCheapest$168Average$453FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$227Average$368FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$227Average$448FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$247Average$435FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$418FlexibilityNo cancel feeOn-time71%

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