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Dulles Intl

$97+ 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 8/27. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — IAD
ago. 3 — ago. 101
dom. 8/3
dom. 8/10
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 September, booked 81 days in advance, depart on a Thursday or Friday and return on a Wednesday

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 julio 29, 2025.

Round-trip from

$237
(United Airlines)

One-way from

$97
(Trip.com)

Popular in

December

Cheapest in

May

Average price

$377
From Riverside to Washington, D.C. Dulles Intl
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One-way flight from Riverside to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 13% potential increase in price ($62 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 julio 29, 2025.

This United Airlines deal was found by Cheapflights users on 7/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/304:29 pmLAX - IAD
Nonstop5h 01mUnited Airlines
mié. 9/35:40 pmIAD - LAX
Nonstop5h 31mUnited Airlines
Deal found 7/28$237
This Cheapflightsfares deal was found by Cheapflights users on 7/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/141:18 pmLAX - IAD
1 stop7h 27mFrontier
mar. 10/217:25 amIAD - LAX
1 stop7h 58mFrontier
Deal found 7/28$245
This Kiwi.com deal was found by Cheapflights users on 7/29. 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.
mar. 8/53:48 pmLAX - IAD
1 stop11h 46mMultiple Airlines
mar. 8/198:19 pmIAD - LAX
Nonstop5h 29mMultiple Airlines
Deal found 7/29$273
This Jettzy deal was found by Cheapflights users on 7/27. 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 Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/2410:00 amLAX - IAD
1 stop11h 23mAlaska Airlines
jue. 10/27:00 amIAD - LAX
1 stop10h 57mAlaska Airlines
Deal found 7/27$280
This Hawaiian Airlines deal was found by Cheapflights users on 7/29. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/312:00 pmLAX - IAD
1 stop9h 23mHawaiian Airlines
lun. 9/89:00 amIAD - LAX
1 stop11h 07mHawaiian Airlines
Deal found 7/29$286
This Southwest deal was found by Cheapflights users on 7/28. 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.
mié. 8/278:30 amLAX - IAD
2 stops10h 35mSouthwest
mié. 9/34:55 pmIAD - LAX
1 stop7h 25mSouthwest
Deal found 7/28$292
This Sun Country Air deal was found by Cheapflights users on 7/29. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/188:00 amLAX - IAD
1 stop25h 23mSun Country Air
dom. 9/2110:54 amIAD - LAX
1 stop27h 21mSun Country Air
Deal found 7/29$295

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 julio 29, 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

sáb. 8/30

4:29 pm-12:30 am

Nonstop5h 01m

Washington, D.C. Dulles Intl

mié. 9/3

5:40 pm-8:11 pm

Nonstop5h 31m

$237

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mar. 10/14

1:18 pm-11:45 pm

1 stop7h 27m

Washington, D.C. Dulles Intl

mar. 10/21

7:25 am-12:23 pm

1 stop7h 58m

$245

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mar. 8/5

3:48 pm-6:34 am

1 stop11h 46m

Washington, D.C. Dulles Intl

mar. 8/19

8:19 pm-10:48 pm

Nonstop5h 29m

$273

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mié. 9/24

10:00 am-12:23 am

1 stop11h 23m

Washington, D.C. Dulles Intl

jue. 10/2

7:00 am-2:57 pm

1 stop10h 57m

$280

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mié. 9/3

5:36 pm-7:33 am

1 stop10h 57m

Washington, D.C. Dulles Intl

lun. 9/8

9:00 am-5:07 pm

1 stop11h 07m

$286

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mié. 8/27

8:30 am-10:05 pm

2 stops10h 35m

Washington, D.C. Dulles Intl

mié. 9/3

4:55 pm-9:20 pm

1 stop7h 25m

$292

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

jue. 9/18

8:00 am-12:23 pm

1 stop25h 23m

Washington, D.C. Dulles Intl

dom. 9/21

10:54 am-11:15 am

1 stop27h 21m

$295

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

mié. 8/27

9:22 am-6:30 am

1 stop18h 08m

$97

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

sáb. 8/30

4:29 pm-12:30 am

Nonstop5h 01m

$109

Los AngelesWashington, D.C.

LAX - IAD

LAXIAD

Los Angeles

dom. 9/14

2:21 pm-6:24 pm

1 stop25h 03m

$111

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 14 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 July 25, 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, July is the cheapest month in which you can book a flight from Riverside to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Riverside to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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 julio 29, 2025.

When flying from Riverside to Washington, D.C. Dulles Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 27, 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. 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 julio 29, 2025.

The most flights from R1V to IAD are scheduled on a Monday (38 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (14 on average).

How much does it cost to fly round-trip from Riverside 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 julio 29, 2025.
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.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,238 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.8
Good
2,605 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,899 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Sun Country Air
6.9
Okay
333 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    $109 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Frontier and Southwest, with prices starting from $111 and $119, respectively.

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

    Consider Egyptair (94%), Singapore Airlines (91%) or Brussels Airlines (88%) 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 $1,334, our data indicates the cheapest price to be $138. The most popular route (Los Angeles - Washington, D.C. Dulles Intl), is priced around $222.

  • 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, July is the cheapest month in which you can book a flight from Riverside to Washington, D.C. Dulles Intl Airport (average of $306). Flying from Riverside to Washington, D.C. Dulles Intl Airport in April is currently the most expensive (average of $337). 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
Woodbridge
Arlington
Alexandria
Tysons
Silver Spring
Fredericksburg
Gaithersburg
Towson
Linthicum Heights
Easton
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
National Harbor
Dundalk
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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Oakland to Reagan-National flights
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San Luis Obispo to Reagan-National flights
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Palm Springs to Reagan-National flights
Palm Springs to Baltimore flights
Long Beach to Baltimore flights
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Monterey to Dulles Intl flights
Long Beach to Reagan-National flights
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Monterey to Baltimore flights
San Luis Obispo 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 julio 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$98Average$254FlexibilityNo cancel feeOn-time65%
FrontierCheapest$114Average$260FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$138Average$326FlexibilityNo cancel feeOn-time85%
DeltaCheapest$138Average$420FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$206Average$377FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$207Average$464FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$227Average$453FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$286Average$442FlexibilityNo cancel feeOn-time71%

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