$134+ Cheap flights from Dulles Intl (IAD) to Delaware
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 6/28. Fares are subject to change and may not be available on all flights or dates of travel.
Find cheap flights from Dulles Intl to Delaware with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Dulles Intl to Delaware
Keep the following information in mind while searching for Dulles Intl to Delaware flight deals. Data was last updated June 12, 2025.
Round-trip from | $179 (United Airlines) |
|---|---|
One-way from | $134 (Mytrip) |
Popular in | August |
Cheapest in | April |
Average price | $538 |
Find flight deals from Dulles Intl to Delaware
Cheapest flights from Dulles Intl to DelawareExplore the most affordable flight options available from Dulles Intl to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.
Explore the most affordable flight options available from Dulles Intl to Delaware. 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.
This Frontier 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
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.
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.
Cheapflights Fare Finder
Customize your flight search to find flights from Dulles Intl to Delaware 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 Washington, D.C. Dulles Intl Airport to Delaware that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Thu 7/3
8:45 am-9:55 am
Nonstop1h 10m
Philadelphia
Sun 7/6
6:05 am-7:15 am
Nonstop1h 10m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Fri 8/1
4:24 pm-12:35 am
1 stop8h 11m
Philadelphia
Mon 8/4
5:25 am-5:17 pm
1 stop11h 52m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Mon 6/30
6:55 am-10:38 am
1 stop3h 43m
Philadelphia
Mon 9/1
8:30 am-12:37 pm
1 stop4h 07m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Thu 7/3
11:58 am-9:47 am
2 stops21h 49m
Philadelphia
Mon 7/7
12:06 pm-12:13 pm
1 stop24h 07m
Washington, D.C.Salisbury
IAD - SBY
IADSBY
Washington, D.C. Dulles Intl
Sat 7/5
1:19 pm-8:30 pm
1 stop7h 11m
Salisbury-Ocean City
Sat 7/12
5:00 am-10:37 am
1 stop5h 37m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Sat 6/28
9:42 pm-1:41 pm
1 stop15h 59m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Tue 8/5
6:10 am-5:55 pm
1 stop11h 45m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Sun 7/6
5:30 pm-6:48 pm
Nonstop1h 18m
Washington, D.C.Philadelphia
IAD - PHL
IADPHL
Washington, D.C. Dulles Intl
Tue 8/5
1:06 pm-8:09 pm
1 stop7h 03m
Washington, D.C.Salisbury
IAD - SBY
IADSBY
Washington, D.C. Dulles Intl
Fri 7/11
5:39 pm-10:11 pm
1 stop28h 32m
Best time to book a flight from Dulles Intl to Delaware
Have a flexible travel schedule? Discover the best time to fly to Delaware from Dulles Intl with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Delaware
Rainfall in Delaware by month
Plan your trip to Delaware by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Delaware ranges from 2.9 - 4.3 inches per month. July is typically the wettest month, when rainfall can reach 4.3 in. February is typically the driest time to visit Delaware when rainfall is around 2.9 in.
Temperature in Delaware by month
Plan your trip to Delaware by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Delaware, 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 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).
Reviews of airlines servicing Delaware
Get insights into the airlines that provide service to Delaware. 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 Delaware. Reviews last updated June 12, 2025.
Peruse reviews from past customers who have flown with Qatar Airways, United Airlines and American Airlines from Washington, D.C. to Delaware to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL
Boarding
Comfort
Entertainment
Overall
Food
Crew
Reviews
preeti,Jan 2025
DOH - PHL