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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Maryland to Washington, D.C. Dulles Intl Airport for a low price.

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

Currently, August is the cheapest month in which you can book a flight from Maryland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Maryland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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.

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.

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).

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

When flying from Maryland 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.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Maryland 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.

$120+ Flights from Maryland to Washington, D.C. Dulles Intl Airport

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Cheap flight deals from Maryland to Dulles Intl

Round-trip from	$179 (United Airlines)
One-way from	$120 (Orbitz)

From Maryland to Washington, D.C. Dulles Intl

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

Search Deals

Find flight deals from Maryland to Dulles Intl

Cheapest flights from Maryland to Dulles Intl
Explore the most affordable flight options available from Maryland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

jue. 7/3110:40 amPHL - IAD

Nonstop1h 00mUnited Airlines

lun. 8/1110:05 pmIAD - PHL

Nonstop1h 09mUnited Airlines

Deal found 7/2

$179

jue. 7/2410:29 pmPHL - IAD

1 stop14h 13mFrontier

dom. 7/277:46 pmIAD - PHL

1 stop15h 48mFrontier

Deal found 6/30

$201

mié. 8/277:09 pmPHL - IAD

2 stops15h 35mMultiple Airlines

sáb. 8/308:12 pmIAD - PHL

2 stops16h 49mMultiple Airlines

Deal found 7/3

$259

sáb. 7/126:08 amPHL - IAD

1 stop4h 29mAmerican Airlines

mar. 7/156:35 amIAD - PHL

1 stop4h 02mAmerican Airlines

Deal found 7/2

$289

Best flights from Maryland to Dulles Intl
Discover carefully curated flight deals from Maryland to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated julio 3, 2025.

jue. 7/3110:40 amPHL - IAD

Nonstop1h 00mUnited Airlines

lun. 8/1110:05 pmIAD - PHL

Nonstop1h 09mUnited Airlines

Deal found 7/2

$179

jue. 7/2410:29 pmPHL - IAD

1 stop14h 13mFrontier

dom. 7/277:46 pmIAD - PHL

1 stop15h 48mFrontier

Deal found 6/30

$201

mié. 8/277:09 pmPHL - IAD

2 stops15h 35mMultiple Airlines

sáb. 8/308:12 pmIAD - PHL

2 stops16h 49mMultiple Airlines

Deal found 7/3

$259

mié. 7/303:35 pmPHL - IAD

1 stop4h 01mAmerican Airlines

mié. 8/67:25 pmIAD - PHL

1 stop3h 59mAmerican Airlines

Deal found 7/2

$289

Last-minute flights from Maryland to Dulles Intl
Discover last-minute flight deals from Maryland to Dulles Intl. Data last updated julio 3, 2025 and is based on user searches.

vie. 7/116:45 pmPHL - IAD

1 stop5h 27mFrontier

lun. 7/144:24 pmIAD - PHL

1 stop8h 11mFrontier

Deal found 7/1

$300

vie. 7/116:05 amPHL - IAD

Nonstop1h 10mUnited Airlines

lun. 7/1410:05 pmIAD - PHL

Nonstop1h 09mUnited Airlines

Deal found 7/1

$343

sáb. 7/126:08 amPHL - IAD

1 stop4h 29mAmerican Airlines

mar. 7/156:35 amIAD - PHL

1 stop4h 02mAmerican Airlines

Deal found 7/2

$289

jue. 7/2410:29 pmPHL - IAD

1 stop14h 13mFrontier

dom. 7/277:46 pmIAD - PHL

1 stop15h 48mFrontier

Deal found 6/30

$201

jue. 7/3110:40 amPHL - IAD

Nonstop1h 00mUnited Airlines

lun. 8/1110:05 pmIAD - PHL

Nonstop1h 09mUnited Airlines

Deal found 7/2

$179

mié. 8/277:09 pmPHL - IAD

2 stops15h 35mMultiple Airlines

sáb. 8/308:12 pmIAD - PHL

2 stops16h 49mMultiple Airlines

Deal found 7/3

$259

One-way flights from Maryland to Dulles Intl
Search for one-way flight options from Maryland to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated julio 3, 2025.

jue. 7/316:45 pmPHL - IAD

1 stop5h 27mFrontier

Deal found 7/1

$120

sáb. 8/95:21 pmPHL - IAD

2 stops17h 47mMultiple Airlines

Deal found 7/2

$122

vie. 8/87:59 pmPHL - IAD

Nonstop1h 09mUnited Airlines

Deal found 7/3

$204

vie. 8/155:53 pmPHL - IAD

1 stop5h 03mAmerican Airlines

Deal found 7/1

$214

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

jue. 7/31

7:59 pm-9:08 pm

Nonstop1h 09m

Washington, D.C. Dulles Intl

jue. 8/7

10:05 pm-11:14 pm

Nonstop1h 09m

$179

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

jue. 7/24

10:29 pm-12:42 pm

1 stop14h 13m

Washington, D.C. Dulles Intl

dom. 7/27

7:46 pm-11:34 am

1 stop15h 48m

$201

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

mié. 8/27

7:09 pm-10:44 am

2 stops15h 35m

Washington, D.C. Dulles Intl

sáb. 8/30

8:12 pm-1:01 pm

2 stops16h 49m

$259

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

sáb. 7/12

6:08 am-10:37 am

1 stop4h 29m

Washington, D.C. Dulles Intl

mar. 7/15

8:06 pm-12:25 am

1 stop4h 19m

$289

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

jue. 7/31

6:45 pm-12:12 am

1 stop5h 27m

$120

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

sáb. 8/9

5:21 pm-11:08 am

2 stops17h 47m

$122

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

vie. 8/8

7:59 pm-9:08 pm

Nonstop1h 09m

$204

PhiladelphiaWashington, D.C.

PHL - IAD

PHLIAD

Philadelphia

vie. 8/15

5:53 pm-10:56 pm

1 stop5h 03m

$214

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Best time to book a flight from Maryland to Dulles Intl

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

No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Maryland to Washington, D.C. Dulles Intl Airport, such as United Airlines, American Airlines, and Frontier. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,845 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,845 reviews

United Airlines

7.4

Good

8,845 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

American Airlines

7.2

Good

10,000 reviews

United Airlines

7.4

Good

8,845 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Frontier

5.9

Fair

3,284 reviews

United Airlines

7.4

Good

8,845 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

What are the cheapest airlines to fly from Maryland to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $120. However, be on the lookout for offers from United Airlines and American Airlines, as they are both options that can get you from Maryland to Washington, D.C. Dulles Intl Airport for a low price.
Can I find deals for flights from Maryland to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Maryland to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Maryland to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Maryland to Dulles Intl.
Can I find deals for business class flights from Maryland to Dulles Intl?
Yes. Cheapflights offers flight deals from Maryland 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 Maryland to Washington, D.C. Dulles Intl Airport?
Currently, August is the cheapest month in which you can book a flight from Maryland to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Maryland to Washington, D.C. Dulles Intl Airport in July is currently the most expensive (average of $345). 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

Arlington

Woodbridge

Alexandria

Tysons

Silver Spring

Fredericksburg

Linthicum Heights

Gaithersburg

Fairfax

Easton

Towson

Waldorf

Laurel

Falls Church

Rockville

Springfield

National Harbor

Manassas

Dundalk

Bowie

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$120+ Cheap flights from Maryland 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 7/31. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Maryland to Dulles Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Maryland to Dulles Intl

Keep the following information in mind while searching for Maryland to Dulles Intl flight deals. Data was last updated julio 3, 2025.

Round-trip from

One-way from

Find flight deals from Maryland to Dulles Intl

Cheapest flights from Maryland to Dulles IntlExplore the most affordable flight options available from Maryland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

Explore the most affordable flight options available from Maryland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Maryland to Dulles Intl

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

Cheapflights Insights

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

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Maryland to Washington, D.C. Dulles Intl Airport, such as United Airlines, American Airlines, and Frontier. You can also see how each airline stacks up 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 Maryland 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 Maryland to Washington, D.C. Dulles Intl Airport one-way?

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

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

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

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

Traveling to a place near Maryland?

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Alternative routes for Maryland to Dulles Intl

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Cheapest flights from Maryland to Dulles Intl
Explore the most affordable flight options available from Maryland to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.