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Dulles Intl

$116+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheapflights Tip: The best prices from Riverside to Washington, D.C. Dulles Intl are usually found in May or July, booked 81 days in advance, depart on a Thursday or Wednesday and return on a Wednesday

Find 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 October 30, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:23 pmLAX - IAD
1 stop25h 23mMultiple Airlines
Wed 12/39:00 amIAD - LAX
1 stop31h 11mMultiple Airlines
Deal found 10/29$234
This Frontier deal was found by Cheapflights users on 10/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/11:23 pmLAX - IAD
1 stop7h 32mFrontier
Sat 11/155:58 amIAD - LAX
1 stop9h 30mFrontier
Deal found 10/29$236
This Southwest deal was found by Cheapflights users on 10/28. 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.
Wed 12/35:35 amLAX - IAD
1 stop8h 30mSouthwest
Thu 12/44:40 pmIAD - LAX
1 stop7h 40mSouthwest
Deal found 10/28$237
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Mon 11/1011:59 pmLAX - IAD
2 stops17h 21mMultiple Airlines
Mon 11/176:00 amIAD - LAX
1 stop9h 25mMultiple Airlines
Deal found 10/28$238
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1610:49 amLAX - IAD
1 stop10h 22mMultiple Airlines
Thu 11/2011:12 amIAD - LAX
1 stop10h 11mMultiple Airlines
Deal found 10/29$239
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/161:23 pmLAX - IAD
1 stop7h 48mFrontier
Thu 11/206:55 amIAD - LAX
1 stop8h 40mFrontier
Deal found 10/29$240
This Kiwi.com deal was found by Cheapflights users on 10/28. 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.
Tue 11/41:23 pmLAX - IAD
1 stop27h 57mFrontier
Mon 11/105:44 pmIAD - LAX
2 stops33h 41mFrontier
Deal found 10/28$241
This Southwest deal was found by Cheapflights users on 10/28. 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.
Thu 12/48:35 amLAX - IAD
2 stops10h 25mSouthwest
Wed 12/105:45 pmIAD - LAX
1 stop7h 30mSouthwest
Deal found 10/28$242
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:40 pmLAX - IAD
1 stop16h 06mMultiple Airlines
Thu 11/276:41 pmIAD - LAX
1 stop17h 29mMultiple Airlines
Deal found 10/29$244
This Kiwi.com deal was found by Cheapflights users on 10/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/191:23 pmLAX - IAD
1 stop25h 23mFrontier
Wed 12/39:00 amIAD - LAX
2 stops14h 05mFrontier
Deal found 10/29$245
This Frontier deal was found by Cheapflights users on 10/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/171:23 pmLAX - IAD
1 stop7h 48mFrontier
Sat 12/65:45 amIAD - LAX
1 stop10h 02mFrontier
Deal found 10/28$246
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:57 pmLAX - IAD
Nonstop4h 51mUnited Airlines
Thu 12/46:45 amIAD - LAX
Nonstop5h 52mUnited Airlines
Deal found 10/29$247

Cheap 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 October 30, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$234
(Kiwi.com)

One-way from

$116
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$382
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. 13% potential increase in price ($63 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 October 30, 2025.
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

Riverside

Fly to

Dulles Intl

Route

Depart

Return

Price

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 11/20

1:30 pm-9:25 pm

Nonstop4h 55m

Washington, D.C. Dulles Intl

Thu 12/4

7:00 pm-9:51 pm

Nonstop5h 51m

$277

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Wed 3/25

8:40 am-4:23 pm

Nonstop4h 43m

Washington, D.C. Dulles Intl

Sat 4/4

10:05 pm-12:30 am

Nonstop5h 25m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 4/18

6:15 am-1:48 pm

Nonstop4h 33m

Washington, D.C. Dulles Intl

Thu 4/30

3:35 pm-6:09 pm

Nonstop5h 34m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 2/8

9:30 pm-5:24 am

Nonstop4h 54m

Washington, D.C. Dulles Intl

Wed 2/11

8:25 am-11:25 am

Nonstop6h 00m

$297

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 2/8

12:30 pm-9:55 pm

1 stop6h 25m

Washington, D.C. Dulles Intl

Wed 2/11

9:05 am-5:05 pm

2 stops11h 00m

$317

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 12/4

11:40 pm-7:31 am

Nonstop4h 51m

Washington, D.C. Dulles Intl

Tue 12/9

9:00 am-11:50 am

Nonstop5h 50m

$317

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Thu 12/25

4:50 pm-12:45 am

Nonstop4h 55m

Washington, D.C. Dulles Intl

Thu 1/1

6:10 am-9:03 am

Nonstop5h 53m

$318

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 2/14

5:45 am-3:45 pm

1 stop7h 00m

Washington, D.C. Dulles Intl

Sat 2/21

5:05 am-11:45 am

2 stops9h 40m

$322

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sat 1/31

9:38 am-5:04 pm

2 stops28h 26m

Washington, D.C. Dulles Intl

Wed 2/4

6:04 pm-9:02 am

1 stop17h 58m

$325

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

Sun 12/7

11:25 am-6:06 am

1 stop15h 41m

Washington, D.C. Dulles Intl

Tue 12/9

5:37 pm-3:20 pm

2 stops24h 43m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 24 results
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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

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 October 24, 2025.

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 $236). 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 October 30, 2025.

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 20% 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 October 26, 2025.

Travelers seeking maximum savings on their Riverside to Washington, D.C. Dulles Intl Airport flight should consider departing on Friday afternoons when fares are most often at their lowest. Tuesday evenings 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 October 30, 2025.
Read through reviews of airlines operating flights from Riverside to Washington, D.C. Dulles Intl Airport, such as Alaska Airlines, Hawaiian Airlines, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
11,219 reviews
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Hawaiian Airlines
7.8
Good
2,797 reviews
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,998 reviews
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Spirit Airlines
6.3
Okay
8,116 reviews
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Frontier
5.8
Fair
3,122 reviews
Alaska Airlines
8.0
Very good
11,219 reviews

Overall

8.0

Boarding

8.1

Entertainment

7.0

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

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 United Airlines and Southwest fly from Riverside to Washington, D.C. Dulles Intl Airport in about 4h 55m. The time it takes to get you to your destination can typically vary by up to 1h 30m. Airlines will cover a distance of 2282 mi. This flight may include one or multiple stops.

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

    Consider Qatar Airways (100%), Alaska Airlines (100%) or Qantas Airways (100%) 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 $1,028, our data indicates the cheapest price to be $145. The most popular route (Los Angeles - Washington, D.C. Dulles Intl), is priced around $180.

  • 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.

  • 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 $236). 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
Springfield
Hanover
Silver Spring
Fairfax
Fredericksburg
Falls Church
Owings Mills
Linthicum Heights
Manassas
Largo
Oxon Hill
Laurel
Towson
National Harbor
Waldorf
Bowie

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Alternative routes for Riverside to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$72Average$233FlexibilityNo cancel feeOn-time65%
FrontierCheapest$123Average$275FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$326FlexibilityNo cancel feeOn-time85%
DeltaCheapest$138Average$376FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$207Average$415FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$218Average$419FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$226Average$358FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$227Average$450FlexibilityNo cancel feeOn-time69%

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