What are the cheapest airlines flying from Raleigh to Washington, D.C. Dulles Intl Airport round-trip?

According to our current data, Frontier ($149), United Airlines ($157), and Delta ($229) offers the cheapest pricing from Raleigh to Washington, D.C. Dulles Intl Airport. Frontier is 44% cheaper than the average price of flights available within the next 90 days to this destination.

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

On average you can expect to pay $1,128 for a flight from Raleigh to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $113 while the most popular route, (Raleigh-Durham - Washington, D.C. Dulles Intl) is currently priced at $137.

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

Before booking your flight to Washington, D.C. Dulles Intl Airport from Raleigh, check out the most reliable airlines to get you to your destination on time: Air China (100%), Avianca (97%), ANA( 97%).

What is the cheapest day to fly round-trip from Raleigh to Washington, D.C. Dulles Intl Airport?

Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 26% on the overall cost on flights from Raleigh to Washington, D.C. Dulles Intl Airport.

What is the cheapest month to fly from Raleigh to Washington, D.C. Dulles Intl Airport?

Our data shows that January tends to be the cheapest month to fly to Washington, D.C. Dulles Intl Airport from Raleigh. Users have commonly found prices around $242 for the month, but tickets can be as low as $179. Due to multiple factors, prepare for potentially higher prices in September.

What airport do you fly from for flights from Raleigh to Washington, D.C. Dulles Intl?

Located just 11.1 mi from the city center, Raleigh-Durham is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Raleigh. Booking flights from Raleigh-Durham (RDU) to Washington, D.C. Dulles Intl should be relatively easy as there are 16 daily outbound flights to Washington, D.C. Dulles Intl from 2 different airlines.

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

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

How can I find direct flights from Raleigh to Dulles Intl?

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

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

Yes. Cheapflights offers flight deals from Raleigh 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.

$69+ Flights from Raleigh to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Raleigh-Durham to Washington, D.C. Dulles Intl are usually found in July or May, booked 72 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Raleigh to Dulles Intl

Round-trip from	$149 (Frontier)
One-way from	$69 (United Airlines)
Popular in	February
Cheapest in	July
Average price	$275
Good round-trip deal	$541 or less
Good one-way deal	$184 or less

From Raleigh-Durham to Washington, D.C. Dulles Intl

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One-way flight from Raleigh-Durham to Washington, D.C. Dulles Intl

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Highest demand for flights based on searches. 10% potential increase in price ($32 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($7 potential savings vs. average RT price).

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Average for round-trip flights in June 2025

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Price to beat on a round-trip flight from Raleigh-Durham to Washington, D.C. Dulles Intl.

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Price to beat on a one-way flight from Raleigh-Durham to Washington, D.C. Dulles Intl.

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Find flight deals from Raleigh to Dulles Intl

Cheapest flights from Raleigh to Dulles Intl
Explore the most affordable flight options available from Raleigh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

Fri 7/45:07 pmRDU - IAD

1 stop6h 57mFrontier

Fri 7/116:10 amIAD - RDU

1 stop10h 02mFrontier

Deal found 6/17

$149

Thu 8/143:10 pmRDU - IAD

Nonstop1h 15mUnited Airlines

Fri 8/158:20 amIAD - RDU

Nonstop1h 08mUnited Airlines

Deal found 6/18

$157

Wed 7/211:08 amRDU - IAD

1 stop5h 25mDelta

Thu 7/106:00 amIAD - RDU

1 stop5h 32mDelta

Deal found 6/17

$229

Wed 8/66:00 amRDU - IAD

1 stop3h 53mAmerican Airlines

Wed 8/207:44 amIAD - RDU

1 stop5h 20mAmerican Airlines

Deal found 6/18

$251

Fri 7/46:11 pmRDU - IAD

1 stop17h 32mMultiple Airlines

Fri 7/114:46 pmIAD - RDU

2 stops24h 55mMultiple Airlines

Deal found 6/15

$287

Best flights from Raleigh to Dulles Intl
Discover carefully curated flight deals from Raleigh to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 18, 2025.

Fri 7/45:07 pmRDU - IAD

1 stop6h 57mFrontier

Fri 7/116:10 amIAD - RDU

1 stop10h 02mFrontier

Deal found 6/17

$149

Tue 8/1210:34 amRDU - IAD

Nonstop1h 11mUnited Airlines

Fri 8/151:02 pmIAD - RDU

Nonstop1h 11mUnited Airlines

Deal found 6/16

$157

Tue 7/12:08 pmRDU - IAD

1 stop5h 43mDelta

Sat 7/56:00 amIAD - RDU

1 stop5h 37mDelta

Deal found 6/18

$229

Fri 9/56:00 amRDU - IAD

1 stop6h 18mAmerican Airlines

Sun 9/78:13 pmIAD - RDU

1 stop3h 55mAmerican Airlines

Deal found 6/16

$265

Fri 7/46:11 pmRDU - IAD

1 stop17h 32mMultiple Airlines

Fri 7/114:46 pmIAD - RDU

2 stops24h 55mMultiple Airlines

Deal found 6/15

$287

Last-minute flights from Raleigh to Dulles Intl
Discover last-minute flight deals from Raleigh to Dulles Intl. Data last updated June 18, 2025 and is based on user searches.

Tue 6/2410:01 amRDU - IAD

1 stop4h 35mDelta

Sat 6/286:00 amIAD - RDU

1 stop4h 02mDelta

Deal found 6/16

$239

Wed 6/256:18 pmRDU - IAD

1 stop5h 41mAmerican Airlines

Fri 7/116:35 amIAD - RDU

1 stop3h 53mAmerican Airlines

Deal found 6/16

$273

Fri 6/275:07 pmRDU - IAD

1 stop6h 57mFrontier

Sat 6/286:10 amIAD - RDU

1 stop9h 47mFrontier

Deal found 6/17

$153

Fri 6/276:00 amRDU - IAD

Nonstop1h 13mUnited Airlines

Fri 7/48:20 amIAD - RDU

Nonstop1h 08mUnited Airlines

Deal found 6/16

$199

Fri 6/275:07 pmRDU - IAD

1 stop6h 57mMultiple Airlines

Sun 6/298:15 amIAD - RDU

Nonstop1h 08mMultiple Airlines

Deal found 6/17

$344

Wed 7/212:42 pmRDU - IAD

1 stop3h 51mDelta

Thu 7/107:02 amIAD - RDU

1 stop4h 30mDelta

Deal found 6/18

$229

Fri 7/45:07 pmRDU - IAD

1 stop6h 57mFrontier

Fri 7/116:10 amIAD - RDU

1 stop10h 02mFrontier

Deal found 6/17

$149

Fri 7/46:11 pmRDU - IAD

1 stop17h 32mMultiple Airlines

Fri 7/114:46 pmIAD - RDU

2 stops24h 55mMultiple Airlines

Deal found 6/15

$287

Mon 7/77:52 pmRDU - IAD

Nonstop1h 16mUnited Airlines

Tue 7/88:20 amIAD - RDU

Nonstop1h 08mUnited Airlines

Deal found 6/15

$177

One-way flights from Raleigh to Dulles Intl
Search for one-way flight options from Raleigh to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated June 18, 2025.

Mon 8/46:00 amRDU - IAD

Nonstop1h 13mUnited Airlines

Deal found 6/15

$69

Sat 6/284:42 pmRDU - IAD

1 stop6h 34mFrontier

Deal found 6/18

$72

Fri 8/155:20 amRDU - IAD

1 stop3h 52mDelta

Deal found 6/15

$121

Mon 12/158:41 pmRDU - IAD

1 stop3h 14mAmerican Airlines

Deal found 6/16

$132

Sun 7/279:10 amRDU - IAD

2 stops24h 13mMultiple Airlines

Deal found 6/18

$135

Tue 11/2511:39 amRDU - IAD

1 stop24h 15mSun Country Air

Deal found 6/15

$144

Cheapflights Fare Finder

Use the filters below to find and compare flights from Raleigh to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 7/4

5:07 pm-12:04 am

1 stop6h 57m

Washington, D.C. Dulles Intl

Fri 7/11

6:10 am-4:12 pm

1 stop10h 02m

$149

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Thu 8/14

3:10 pm-4:25 pm

Nonstop1h 15m

Washington, D.C. Dulles Intl

Fri 8/15

8:20 am-9:28 am

Nonstop1h 08m

$157

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Wed 7/2

11:08 am-4:33 pm

1 stop5h 25m

Washington, D.C. Dulles Intl

Thu 7/10

6:00 am-11:32 am

1 stop5h 32m

$229

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Wed 8/6

6:00 am-9:53 am

1 stop3h 53m

Washington, D.C. Dulles Intl

Wed 8/20

7:44 am-1:04 pm

1 stop5h 20m

$251

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 7/4

6:11 pm-11:43 am

1 stop17h 32m

Washington, D.C. Dulles Intl

Fri 7/11

4:46 pm-5:41 pm

2 stops24h 55m

$287

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 8/4

6:00 am-7:13 am

Nonstop1h 13m

$69

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Sat 6/28

4:42 pm-11:16 pm

1 stop6h 34m

$72

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Fri 8/15

5:20 am-9:12 am

1 stop3h 52m

$121

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Mon 12/15

8:41 pm-11:55 pm

1 stop3h 14m

$132

RaleighWashington, D.C.

RDU - IAD

RDUIAD

Raleigh-Durham

Sun 7/27

9:10 am-9:23 am

2 stops24h 13m

$135

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/15

Showing 1-10 of 11 results

The best insider tips for Raleigh to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Washington, D.C. Dulles Intl Airport trip

Airports

RDU

RDU offers free Wi-Fi throughout the terminals. Connect to the 'RDU Free WiFi' network for seamless browsing before your flight.

IAD

The Washington Metro Silver line reaches IAD in under 40 minutes, offering a cost-effective way to reach the city.

Our travel experts

John Walton

Expert on RDU

Ramsey Qubein

Expert on IAD

Best time to book a flight from Raleigh to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Raleigh to Washington, D.C. Dulles Intl Airport?

Booking 72 days in advance of your planned departure date is, on average, the best time to get cheap flights from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $347). 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 RDU to IAD?

It’s optimal to fly from Raleigh to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 41% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Raleigh to Washington, D.C. Dulles Intl Airport?

Travelers seeking maximum savings on their Raleigh to Washington, D.C. Dulles Intl Airport flight should consider departing on Thursday mornings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Raleigh to Washington, D.C. Dulles Intl Airport

The most flights from RDU to IAD are scheduled on a Tuesday (22 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

Rainfall in Dulles Intl by month

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Raleigh to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,964 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,810 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Sun Country Air

6.9

Okay

345 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Frontier

5.9

Fair

3,301 reviews

Delta

8.0

Very good

7,964 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What airport do you fly from for flights from Raleigh to Washington, D.C. Dulles Intl?
Located just 11.1 mi from the city center, Raleigh-Durham is the airport most travelers will use when flying to Washington, D.C. Dulles Intl from Raleigh. Booking flights from Raleigh-Durham (RDU) to Washington, D.C. Dulles Intl should be relatively easy as there are 16 daily outbound flights to Washington, D.C. Dulles Intl from 2 different airlines.
What are the cheapest airlines flying from Raleigh to Washington, D.C. Dulles Intl Airport round-trip?
According to our current data, Frontier ($149), United Airlines ($157), and Delta ($229) offers the cheapest pricing from Raleigh to Washington, D.C. Dulles Intl Airport. Frontier is 44% cheaper than the average price of flights available within the next 90 days to this destination.
What are the cheapest airlines to fly from Raleigh to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airlines for a one-way flight from Raleigh to Washington, D.C. Dulles Intl Airport are United Airlines ($69), Frontier ($72), and Delta ($121).
What are the most reliable airlines from Raleigh to Washington, D.C. Dulles Intl Airport?
Before booking your flight to Washington, D.C. Dulles Intl Airport from Raleigh, check out the most reliable airlines to get you to your destination on time: Air China (100%), Avianca (97%), ANA( 97%).
What are the cheapest flights from Raleigh to Washington, D.C. Dulles Intl Airport?
On average you can expect to pay $1,128 for a flight from Raleigh to Washington, D.C. Dulles Intl Airport. The cheapest flight overall is $113 while the most popular route, (Raleigh-Durham - Washington, D.C. Dulles Intl) is currently priced at $137.
Can I find deals for flights from Raleigh to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Raleigh to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Raleigh to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Raleigh to Dulles Intl.
Can I find deals for business class flights from Raleigh to Dulles Intl?
Yes. Cheapflights offers flight deals from Raleigh 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 Raleigh to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Raleigh to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Raleigh to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $347). 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

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Tysons

Silver Spring

Linthicum Heights

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Dundalk

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Top 2 airlines flying from Raleigh to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$179	Average$261	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$239	Average$328	FlexibilityNo cancel fee	On-timeN/A

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$69+ Cheap flights from Raleigh (RDU) 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Raleigh to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Raleigh-Durham to Washington, D.C. Dulles Intl are usually found in July or May, booked 72 days in advance, depart on a Thursday or Wednesday and return on a Thursday

Cheap flight deals from Raleigh to Dulles Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Raleigh to Dulles Intl

Cheapest flights from Raleigh to Dulles IntlExplore the most affordable flight options available from Raleigh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

Explore the most affordable flight options available from Raleigh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Raleigh to Washington, D.C. Dulles Intl Airport that are best for you.

The best insider tips for Raleigh to Washington, D.C. Dulles Intl Airport flights

Cheapflights partnered with top experts to bring you the best recommendations for your Raleigh to Washington, D.C. Dulles Intl Airport trip

Airports

RDU

IAD

Our travel experts

Best time to book a flight from Raleigh to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Raleigh with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Raleigh to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Raleigh to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Raleigh to Dulles Intl. Price data was last updated on June 13, 2025.

What is the cheapest month to book a flight from Raleigh to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to fly from RDU to IAD?

Find hourly flight availability from Raleigh 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 June 18, 2025.

What is the cheapest day to fly from Raleigh to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the cheapest time to fly round-trip from Raleigh to Dulles Intl. Price data was last updated on June 15, 2025.

Weekly flight availability from Raleigh to Washington, D.C. Dulles Intl Airport

Explore weekly flight availability from Raleigh 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 June 18, 2025.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Dulles Intl

Get a feel of what it's like to fly with Delta, United Airlines and American Airlines from Raleigh to Washington, D.C. by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Raleigh 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 airport do you fly from for flights from Raleigh to Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Raleigh to Washington, D.C. Dulles Intl Airport round-trip?

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

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

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

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

How can I find direct flights from Raleigh to Dulles Intl?

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

What is the cheapest month to book a flight from Raleigh to Washington, D.C. Dulles Intl Airport?

Traveling to a place near Raleigh?

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Alternative routes for Raleigh to Dulles Intl

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Top 2 airlines flying from Raleigh to Dulles Intl

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Cheapest flights from Raleigh to Dulles Intl
Explore the most affordable flight options available from Raleigh to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 18, 2025.