HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$167+ 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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.
Cheapflights Tip: The best prices from Riverside to Washington, D.C. Dulles Intl are usually found in August or October, booked 82 days in advance, depart on a Wednesday or Thursday and return on a Thursday

Cheap flight deals from Riverside to Dulles Intl

Cheapest flights from Riverside to Dulles Intl
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 July 9, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/209:09 pm
LAX
-
IAD
1 stop8h 11m
Frontier
Wed 8/198:59 am
IAD
-
LAX
1 stop27h 30m
Frontier
Deal found 7/9$296
This Kiwi.com deal was found by Cheapflights users on 7/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:09 pm
LAX
-
IAD
1 stop8h 11m
Frontier
Tue 8/119:50 am
IAD
-
LAX
1 stop13h 13m
Frontier
Deal found 7/9$298
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:09 pm
LAX
-
IAD
1 stop8h 11m
Frontier
Wed 8/59:50 am
IAD
-
LAX
1 stop13h 13m
Frontier
Deal found 7/8$299
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/39:09 pm
LAX
-
IAD
1 stop8h 11m
Frontier
Thu 8/66:46 pm
IAD
-
LAX
1 stop25h 44m
Frontier
Deal found 7/8$300
This Booking.com deal was found by Cheapflights users on 7/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:30 am
LAX
-
IAD
1 stop22h 50m
Frontier
Fri 8/2110:45 am
IAD
-
LAX
1 stop10h 27m
Frontier
Deal found 7/7$301
This United Airlines deal was found by Cheapflights users on 7/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:00 pm
LAX
-
IAD
Nonstop4h 53m
United Airlines
Sat 8/229:00 am
IAD
-
LAX
Nonstop5h 32m
United Airlines
Deal found 7/8$302
This CheapOair deal was found by Cheapflights users on 7/6. 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.
Fri 7/246:30 am
LAX
-
IAD
1 stop22h 50m
Frontier
Mon 7/277:18 pm
IAD
-
LAX
1 stop25h 39m
Frontier
Deal found 7/6$303
This Expedia deal was found by Cheapflights users on 7/8. 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 Expedia 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
Tue 8/49:50 am
IAD
-
LAX
1 stop13h 13m
Frontier
Deal found 7/8$304
This Expedia deal was found by Cheapflights users on 7/5. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1412:07 pm
LAX
-
IAD
1 stop17h 13m
Frontier
Tue 7/289:50 am
IAD
-
LAX
1 stop13h 13m
Frontier
Deal found 7/5$305
This Kiwi.com deal was found by Cheapflights users on 7/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:59 pm
LAX
-
IAD
2 stops16h 45m
Frontier
Fri 8/2110:45 am
IAD
-
LAX
1 stop10h 27m
Frontier
Deal found 7/8$306
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Wed 7/226:30 am
LAX
-
IAD
1 stop22h 50m
Frontier
Tue 7/289:38 pm
IAD
-
LAX
1 stop14h 16m
Frontier
Deal found 7/4$307
This Kiwi.com deal was found by Cheapflights users on 7/4. 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.
Tue 7/2111:00 pm
LAX
-
IAD
1 stop8h 16m
Frontier
Wed 7/299:50 am
IAD
-
LAX
1 stop26h 35m
Frontier
Deal found 7/4$308

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 July 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$298
(Kiwi.com)

One-way from

$167
(Super.com)

Popular in

June

Cheapest in

August

Average price

$410
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 Riverside to Washington, D.C. Dulles Intl
Search Deals
One-way flight from Riverside to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Riverside 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 July 9, 2026.
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

Cheapest round-trip

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 10/1

10:30 pm-6:29 am

Nonstop4h 59m

Washington, D.C. Dulles Intl

Thu 10/8

12:58 pm-3:19 pm

Nonstop5h 21m

$301

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 9/5

10:39 pm-6:38 am

Nonstop4h 59m

Washington, D.C. Dulles Intl

Mon 9/14

8:33 pm-11:05 pm

Nonstop5h 32m

$337

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 8/19

10:39 pm-6:38 am

Nonstop4h 59m

Washington, D.C. Dulles Intl

Sat 8/29

7:00 am-9:34 am

Nonstop5h 34m

$371

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 9/29

10:54 am-6:57 pm

Nonstop5h 03m

Washington, D.C. Dulles Intl

Wed 9/30

10:13 pm-12:45 am

Nonstop5h 32m

$377

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 10/6

10:30 pm-6:29 am

Nonstop4h 59m

Washington, D.C. Dulles Intl

Sun 10/11

12:58 pm-3:19 pm

Nonstop5h 21m

$412

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 8/27

12:49 pm-8:48 pm

Nonstop4h 59m

Washington, D.C. Dulles Intl

Mon 8/31

9:00 am-11:32 am

Nonstop5h 32m

$412

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 7/30

9:20 pm-5:26 am

Nonstop5h 06m

Washington, D.C. Dulles Intl

Sun 8/2

10:20 pm-12:57 am

Nonstop5h 37m

$459

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Tue 9/15

1:59 pm-5:40 am

2 stops12h 41m

Washington, D.C. Dulles Intl

Wed 9/16

7:00 am-3:57 pm

1 stop11h 57m

$485

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 10/15

3:56 pm-5:40 am

1 stop10h 44m

Washington, D.C. Dulles Intl

Sun 10/18

9:35 am-4:52 pm

1 stop10h 17m

$487

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Fri 9/4

8:03 pm-6:14 pm

2 stops19h 11m

Washington, D.C. Dulles Intl

Wed 9/9

9:03 am-8:05 pm

2 stops14h 02m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/8

Showing 1-10 of 23 resultsSorted by cheapest first
1
2
3

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.
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 Riverside to Washington, D.C. Dulles Intl Airport

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 July 9, 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 36% on the cost of your flight, compared to a flight in the morning.

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 July 9, 2026.

The most flights from R1V to IAD are scheduled on a Monday (37 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (19 on average).

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

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 July 4, 2026.

Travelers seeking maximum savings on their Riverside 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.

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 July 9, 2026.
Read through reviews of airlines operating flights from Riverside to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines,Southwest, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Alaska Airlines
7.9
Good
12,640 reviews
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Southwest
7.9
Good
4,249 reviews
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
United Airlines
7.4
Good
9,954 reviews
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
American Airlines
7.1
Good
11,791 reviews
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.
Frontier
5.6
Fair
2,835 reviews
Alaska Airlines
7.9
Good
12,640 reviews

Entertainment

7.0

Overall

7.9

Comfort

7.8

Crew

8.5

Boarding

8.1

Food

7.0

Reviews

1 / 20
10.0
Excellent

Franzi,Mar 2026

SFO - PDX

I love flying with Alaska. I think they sre the best airline.

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.

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

    Airlines like Frontier and United Airlines fly from Riverside to Washington, D.C. Dulles Intl Airport in about 4h 53m. The time it takes to get you to your destination can typically vary by up to 1h 44m. Airlines will cover a distance of 2282 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Riverside 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 Southwest and American Airlines, with prices starting from $128 and $133, respectively.

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

    Consider Ethiopian Air (97%), Air China (96%) or Egyptair (96%) when booking your flight. These represent the most reliable airlines when flying from Riverside to Washington, D.C. Dulles Intl Airport.

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

    Looking for the cheapest flight from Riverside to Washington, D.C. Dulles Intl Airport? While on average our users pay $1,531, our data indicates the cheapest price to be $134. The most popular route (Los Angeles - Washington, D.C. Dulles Intl), is priced around $227.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Riverside 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.

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
Arlington
Tysons
Owings Mills
Springfield
Lanham
Reston
Herndon
Rockville
Hyattsville
Manassas
Falls Church
Fredericksburg
Hanover
Chantilly
Laurel
Sterling
Silver Spring
Clinton
Hunt Valley

Browse 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.
Los Angeles to Reagan-National flights
Los Angeles to Dulles Intl flights
Los Angeles to Baltimore flights
San Francisco to Dulles Intl flights
San Francisco to Reagan-National flights
San Francisco to Baltimore flights
Ontario to Dulles Intl flights
Ontario to Reagan-National flights
Ontario to Baltimore flights
San Diego to Dulles Intl flights
San Diego to Baltimore flights
San Diego to Reagan-National flights
Santa Ana to Dulles Intl flights
Las Vegas to Dulles Intl flights
San Jose to Dulles Intl flights
Burbank to Dulles Intl flights
Las Vegas to Reagan-National flights
Las Vegas to Baltimore flights
Oakland to Dulles Intl flights
Santa Ana to Reagan-National flights
San Jose to Reagan-National flights
Sacramento to Dulles Intl flights
Santa Ana to Baltimore flights
Burbank to Baltimore flights
San Jose to Baltimore flights
Sacramento to Baltimore flights
Oakland to Baltimore flights
Oakland to Reagan-National flights
Sacramento to Reagan-National flights
Burbank to Reagan-National flights
Long Beach to Dulles Intl flights
Fresno to Dulles Intl flights
Palm Springs to Dulles Intl flights
Fresno to Reagan-National flights
Long Beach to Baltimore flights
Long Beach to Reagan-National flights
Palm Springs to Reagan-National flights
Reno to Dulles Intl flights
Fresno to Baltimore flights
Palm Springs to Baltimore flights
Monterey to Baltimore flights
San Luis Obispo to Baltimore flights
Monterey to Dulles Intl flights
Reno to Reagan-National flights
Santa Barbara to Dulles Intl flights
Reno to Baltimore flights
San Luis Obispo to Dulles Intl flights
San Luis Obispo to Reagan-National flights
Santa Barbara to Baltimore flights

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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$133Average$294FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$327FlexibilityNo cancel feeOn-time85%
DeltaCheapest$172Average$514FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$237Average$518FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$238Average$533FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$246Average$421FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$271Average$425FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$277Average$422FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.