$141+ 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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Irvine to Dulles Intl with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Irvine to Dulles Intl
Cheapest flights from Irvine to Dulles IntlExplore 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 January 29, 2026.
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 January 29, 2026.
This Frontier deal was found by Cheapflights users on 1/27. 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.
This Southwest deal was found by Cheapflights users on 1/29. 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.
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
This Kiwi.com deal was found by Cheapflights users on 1/28. 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.
This Frontier deal was found by Cheapflights users on 1/27. 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.
This Southwest deal was found by Cheapflights users on 1/28. 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.
This Expedia deal was found by Cheapflights users on 1/26. 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.
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
This Kiwi.com deal was found by Cheapflights users on 1/27. 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.
This Southwest deal was found by Cheapflights users on 1/27. 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.
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 January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $256 (Frontier) |
One-way from | $141 (Kiwi.com) |
Popular in | December |
Cheapest in | May |
Average price | $427 |
Cheapflights Fare Finder
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
Fly to
Route
Depart
Return
Price
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 3/3
5:45 am-4:50 pm
1 stop8h 05m
Washington, D.C. Dulles Intl
Sat 3/7
4:45 pm-9:35 pm
1 stop7h 50m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Mon 2/23
6:00 am-4:00 pm
1 stop7h 00m
Washington, D.C. Dulles Intl
Wed 2/25
9:05 am-5:05 pm
2 stops11h 00m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Fri 7/17
6:15 am-1:48 pm
Nonstop4h 33m
Washington, D.C. Dulles Intl
Sun 7/26
8:10 pm-10:34 pm
Nonstop5h 24m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Fri 4/17
4:42 pm-12:45 am
Nonstop5h 03m
Washington, D.C. Dulles Intl
Mon 4/20
3:25 pm-6:10 pm
Nonstop5h 45m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 3/3
5:45 am-4:50 pm
1 stop8h 05m
Washington, D.C. Dulles Intl
Fri 3/6
4:45 pm-10:30 pm
1 stop8h 45m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Fri 4/24
4:42 pm-12:45 am
Nonstop5h 03m
Washington, D.C. Dulles Intl
Sun 4/26
7:49 pm-10:35 pm
Nonstop5h 46m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Mon 6/22
11:10 pm-7:12 am
Nonstop5h 02m
Washington, D.C. Dulles Intl
Mon 6/29
3:35 pm-6:09 pm
Nonstop5h 34m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Mon 3/2
5:00 am-5:00 pm
1 stop9h 00m
Washington, D.C. Dulles Intl
Wed 3/4
9:05 am-4:15 pm
2 stops10h 10m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Tue 3/17
2:30 pm-11:40 pm
1 stop6h 10m
Washington, D.C. Dulles Intl
Mon 3/30
7:45 pm-12:15 am
1 stop7h 30m
Los AngelesWashington, D.C.
LAX - IAD
LAXIAD
Los Angeles
Wed 5/6
10:45 am-11:40 pm
2 stops9h 55m
Washington, D.C. Dulles Intl
Mon 5/11
4:30 pm-11:20 pm
1 stop9h 50m
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.
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 23, 2026.
Booking 81 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 January 29, 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 24, 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 January 29, 2026.
The most flights from IR9 to IAD are scheduled on a Monday (28 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (12 on average).
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 January 29, 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.
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Jan 2026
STS - LAX
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.
Traveling to a place near Washington, D.C. Dulles Intl Airport?
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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.
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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$50 | Average$180 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$102 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$113 | Average$315 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$168 | Average$443 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$227 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$227 | Average$447 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$247 | Average$435 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$278 | Average$418 | FlexibilityNo cancel fee | On-time71% |