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Dulles Intl

$120+ Cheap flights from Dayton (DAY) 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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — IAD
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheap flight deals from Dayton to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Dayton (DAY) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$189
(United Airlines)

One-way from

$120
(United Airlines)

Popular in

November

Cheapest in

May

Average price

$349

Good round-trip deal

$424 or less

Good one-way deal

$260 or less
From Dayton to Washington, D.C. Dulles Intl
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One-way flight from Dayton to Washington, D.C. Dulles Intl
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High demand for flights, 4% potential price rise
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Dayton to Washington, D.C. Dulles Intl.
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Price to beat on a one-way flight from Dayton to Washington, D.C. Dulles Intl.
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Find flight deals from Dayton to Dulles Intl

Cheapest flights from Dayton to Dulles Intl
Explore the most affordable flight options available from Dayton to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 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.
Fri 9/510:25 amDAY - IAD
Nonstop1h 37mUnited Airlines
Sun 9/78:15 amIAD - DAY
Nonstop1h 35mUnited Airlines
Deal found 7/28$189
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/276:00 amDAY - IAD
1 stop5h 23mDelta
Sat 8/306:00 amIAD - DAY
1 stop4h 26mDelta
Deal found 7/28$204
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/912:56 pmDAY - IAD
1 stop5h 55mAmerican Airlines
Wed 9/102:21 pmIAD - DAY
1 stop6h 40mAmerican Airlines
Deal found 7/26$251

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton 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 28, 2025.
Use the filters below to find and compare flights from Dayton to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Dayton

Fly to

Dulles Intl

Route

Depart

Return

Price

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Fri 9/5

10:25 am-12:02 pm

Nonstop1h 37m

Washington, D.C. Dulles Intl

Sun 9/7

8:15 am-9:50 am

Nonstop1h 35m

$189

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Wed 8/27

6:00 am-11:23 am

1 stop5h 23m

Washington, D.C. Dulles Intl

Sat 8/30

6:00 am-10:26 am

1 stop4h 26m

$204

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Tue 9/9

12:56 pm-6:51 pm

1 stop5h 55m

Washington, D.C. Dulles Intl

Wed 9/10

2:21 pm-9:01 pm

1 stop6h 40m

$251

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Fri 10/31

10:27 am-11:55 am

Nonstop1h 28m

$120

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Sat 9/20

6:00 am-10:07 am

1 stop4h 07m

$126

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Tue 9/2

11:11 am-4:30 pm

1 stop5h 19m

$200

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Mon 9/22

12:01 pm-11:23 am

3 stops23h 22m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Dayton to Dulles Intl

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

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

Currently, August is the cheapest month in which you can book a flight from Dayton to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Dayton 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 DAY to IAD?

Find hourly flight availability from Dayton 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 28, 2025.

It’s optimal to fly from Dayton to Washington, D.C. Dulles Intl Airport in the morning. By choosing this option you can save up to 60% on the cost of your flight, compared to a flight at noon.

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

Explore weekly flight availability from Dayton 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 28, 2025.

The most flights from DAY to IAD are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).

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 28, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Dayton to Washington, D.C. Dulles Intl Airport have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,971 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
8,893 reviews
Delta
8.0
Very good
7,971 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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
7,971 reviews

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Crew

8.5

Overall

8.0

Food

7.3

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

Find useful and relevant information for your journey from Dayton 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 Dayton to Washington, D.C. Dulles Intl?

    Most people fly from Dayton (DAY) if they book a flight from Dayton to Washington, D.C. Dulles Intl. On average, Dayton has 9 outbound flights to Washington, D.C. Dulles Intl per day from 1 airline. Dayton is conveniently located just 10.0 mi from Dayton’s city center.

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

    According to our current data, United Airlines ($189), Delta ($204), and American Airlines ($251) offers the cheapest pricing from Dayton to Washington, D.C. Dulles Intl Airport. United Airlines is 41% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with United Airlines, which is currently one of the cheapest options available, starting at $120. American Airlines flights start at $126 while deals on Delta start at $200 one-way.

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

    Consider Copa Airlines (75%), Lufthansa (72%) or Austrian Airlines (71%) when booking your flight. These represent the most reliable airlines when flying from Dayton to Washington, D.C. Dulles Intl Airport.

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

    While on average a flight from Dayton to Washington, D.C. Dulles Intl Airport is generally $2,024, our data shows the cheapest flight currently is $155. When looking at the most popular route, (Dayton - Washington, D.C. Dulles Intl), you can expect to pay $189 for that flight.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dayton 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 Dayton to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Dayton to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Dayton 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
Easton
Towson
Linthicum Heights
Fairfax
Manassas
Falls Church
Waldorf
Laurel
Rockville
Oxon Hill
Springfield
National Harbor
Dundalk

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Alternative routes for Dayton to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Dayton to Dulles Intl

Discover the top airline that operate flights from Dayton 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$194Average$315FlexibilityNo cancel feeOn-time69%

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