$141+ Cheap flights from Riverside, 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 Riverside 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 Riverside to Dulles Intl
Cheapest flights from Riverside to Dulles IntlExplore the most affordable flight options available from Riverside 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 Riverside 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 Riverside to Dulles Intl
Keep the following information in mind while searching for Riverside 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 Riverside 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 Riverside to Dulles Intl
Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Riverside with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Riverside to Washington, D.C. Dulles Intl Airport
How far ahead should I book a flight from Riverside to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the optimal time to book a round-trip flight from Riverside to Dulles Intl. Price data was last updated on January 23, 2026.
To ensure you get the cheapest price possible for a flight from Riverside to Washington, D.C. Dulles Intl Airport, you should look to book at least 81 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 month to book a flight from Riverside to Washington, D.C. Dulles Intl Airport?
Currently, June is the cheapest month in which you can book a flight from Riverside to Washington, D.C. Dulles Intl Airport (average of $142). Flying from Riverside 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 R1V to IAD?
Find hourly flight availability from Riverside 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.
It’s optimal to fly from Riverside to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 22% on the cost of your flight, compared to a flight at noon.
What is the cheapest day to fly from Riverside to Washington, D.C. Dulles Intl Airport?
Use this chart to determine the cheapest time to fly round-trip from Riverside to Dulles Intl. Price data was last updated on January 24, 2026.
Travelers seeking maximum savings on their Riverside 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 Riverside to Washington, D.C. Dulles Intl Airport
Explore weekly flight availability from Riverside 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 R1V 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 through reviews of airlines operating flights from Riverside to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines, Southwest, and Hawaiian Airlines. Reviews also offer insight into each airline's 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 Riverside 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?
Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locationsBrowse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Riverside to Dulles Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top 8 airlines flying from Riverside to Dulles Intl
Discover the top 8 airlines that operate flights from Riverside 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$446 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$247 | Average$413 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$250 | Average$409 | FlexibilityNo cancel fee | On-time71% |