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Dulles Intl

$97+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — IAD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheapflights Tip: The best prices from Dayton to Washington, D.C. Dulles Intl are usually found in May or August, booked 32 days in advance, depart on a Friday or Thursday and return on a Tuesday

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 June 12, 2025.

Round-trip from

$189
(United Airlines)

One-way from

$97
(Mytrip)

Popular in

November

Cheapest in

May

Average price

$401

Good round-trip deal

$350 or less

Good one-way deal

$224 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, 1% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($8 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 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 June 12, 2025.

This United Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 7/77:48 pmDAY - IAD
Nonstop1h 37mUnited Airlines
Sat 7/1912:40 pmIAD - DAY
Nonstop1h 36mUnited Airlines
Deal found 6/10$189
This Delta deal was found by Cheapflights users on 6/10. 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.
Fri 7/187:18 pmDAY - IAD
1 stop5h 16mDelta
Wed 7/236:00 amIAD - DAY
1 stop4h 27mDelta
Deal found 6/10$209
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Sat 7/265:22 pmDAY - IAD
1 stop6h 36mAmerican Airlines
Sat 8/96:34 amIAD - DAY
1 stop6h 55mAmerican Airlines
Deal found 6/10$260
This Mytrip deal was found by Cheapflights users on 6/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/259:43 amDAY - IAD
1 stop22h 48mMultiple Airlines
Sun 6/2912:55 pmIAD - DAY
3 stops31h 42mMultiple Airlines
Deal found 6/11$408

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 June 12, 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

Mon 7/7

7:48 pm-9:25 pm

Nonstop1h 37m

Washington, D.C. Dulles Intl

Sat 7/19

12:40 pm-2:16 pm

Nonstop1h 36m

$189

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Fri 7/18

7:18 pm-12:34 am

1 stop5h 16m

Washington, D.C. Dulles Intl

Wed 7/23

5:20 pm-12:13 am

1 stop6h 53m

$209

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Sat 7/26

5:22 pm-11:58 pm

1 stop6h 36m

Washington, D.C. Dulles Intl

Sat 8/9

6:34 am-1:29 pm

1 stop6h 55m

$260

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Sat 7/26

11:31 am-8:35 am

1 stop21h 04m

Washington, D.C. Dulles Intl

Wed 7/30

5:40 pm-8:40 pm

3 stops27h 00m

$367

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Wed 7/9

9:41 am-8:35 am

1 stop22h 54m

$97

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Tue 7/1

10:26 am-11:55 am

Nonstop1h 29m

$181

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Thu 7/24

7:18 pm-12:34 am

1 stop5h 16m

$224

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Mon 7/14

9:28 pm-9:09 pm

3 stops23h 41m

$230

DaytonWashington, D.C.

DAY - IAD

DAYIAD

Dayton

Sun 7/27

5:22 pm-11:58 pm

1 stop6h 36m

$269

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/9

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

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

Use this chart to determine the optimal time to book a round-trip flight from Dayton to Dulles Intl. Price data was last updated on June 9, 2025.

To ensure you get the cheapest price possible for a flight from Dayton to Washington, D.C. Dulles Intl Airport, you should look to book at least 32 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 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 July is currently the most expensive (average of $349). 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 June 12, 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 June 12, 2025.

The most flights from DAY to IAD are scheduled on a Thursday (10 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (6 on average).

Rainfall in Dulles Intl by month

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

Plan your trip to Dulles Intl by taking into account the average temperature totals 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 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 June 12, 2025.
To help decide which airline to fly from Dayton to Washington, D.C., see what other customers have to say about Delta, United Airlines and Allegiant Air. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
8,790 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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!
Allegiant Air
7.3
Good
725 reviews
Delta
8.0
Very good
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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
7,946 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Food

7.3

Crew

8.5

Comfort

7.9

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 8 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 ($209), and American Airlines ($260) offers the cheapest pricing from Dayton to Washington, D.C. Dulles Intl Airport. United Airlines is 42% 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 Allegiant Air, which is currently one of the cheapest options available, starting at $97. United Airlines flights start at $120 while deals on American Airlines start at $150 one-way.

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

    Consider Copa Airlines (87%), Avianca (85%) or Lufthansa (82%) 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 $2,329, our data shows the cheapest flight currently is $157. 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 July is currently the most expensive (average of $349). 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 Dayton?

Book flights to Dayton if you plan to visit one of these locations
Arlington
Alexandria
Woodbridge
Tysons
Silver Spring
Linthicum Heights
Fredericksburg
Gaithersburg
Fairfax
Falls Church
Easton
Herndon
Towson
Sterling
Bowie
Rockville
Reston
National Harbor
Springfield
Manassas

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Alternative routes for Dayton to Dulles Intl

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$191Average$306FlexibilityNo cancel feeOn-time69%

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