$90 Cheap United flights Washington (IAD) to Dayton (DAY)

View $90 flight on Sat, Aug 30, 2025Opens in a new window

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • one key icon

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

$90 Cheap United flights Washington (IAD) to Dayton (DAY)

Prices were available within the past 7 days and start at $90 for one-way flights and $189 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 8 - Sun, Oct 12
IAD
Washington
DAY
Dayton
$189 Roundtrip, found 3 hours ago
$189
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Oct 8 from Washington to Dayton, returning Sun, Oct 12, priced at $189 found 3 hours ago
United
Fri, Aug 22 - Mon, Aug 25
IAD
Washington
DAY
Dayton
$194 Roundtrip, found 10 hours ago
$194
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Aug 22 from Washington to Dayton, returning Mon, Aug 25, priced at $194 found 10 hours ago
United
Wed, Oct 8 - Sun, Oct 12
IAD
Washington
DAY
Dayton
$199 Roundtrip, found 3 hours ago
$199
Roundtrip
found 3 hours ago
Select United flight, departing Wed, Oct 8 from Washington to Dayton, returning Sun, Oct 12, priced at $199 found 3 hours ago
United
Fri, Aug 22 - Mon, Aug 25
IAD
Washington
DAY
Dayton
$204 Roundtrip, found 10 hours ago
$204
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Aug 22 from Washington to Dayton, returning Mon, Aug 25, priced at $204 found 10 hours ago
United
Mon, Aug 18 - Mon, Aug 25
IAD
Washington
DAY
Dayton
$206 Roundtrip, found 1 hour ago
$206
Roundtrip
found 1 hour ago
Select United flight, departing Mon, Aug 18 from Washington to Dayton, returning Mon, Aug 25, priced at $206 found 1 hour ago
United
Fri, Aug 22 - Mon, Aug 25
IAD
Washington
DAY
Dayton
$209 Roundtrip, found 10 hours ago
$209
Roundtrip
found 10 hours ago
Select United flight, departing Fri, Aug 22 from Washington to Dayton, returning Mon, Aug 25, priced at $209 found 10 hours ago
Flights from Washington (IAD) to Dayton (DAY)
Origin airport
Washington Dulles Intl.
Destination airport
James M. Cox Dayton Intl.
Airlines serving
American Airlines, Delta, United
Popular airline
United
Distance
367 mi
Average flight time
1 hour 38 mins

Frequently asked questions

How much is a United Airlines flight from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY)?
You'll discover cheap round-trip United Airlines flights from $189 from IAD to DAY by organizing your results from "Price (lowest to highest)" on Expedia. Or search for options from $90 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from IAD to DAY with United Airlines?
January is one of the most affordable months to travel to Dayton with United Airlines. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY) with United Airlines?
To find cheap United Airlines fares from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also impact what you pay. Sunday is generally the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking your trip on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does United Airlines fly nonstop from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY)?
Choose from one of United Airlines's 11 weekly direct flights from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY). To see what's available, enter your destination, origin and dates and hit search. Next, apply the "Nonstop" and "Airline" filters.
How long does it take to fly from IAD to DAY with United Airlines?
Leave Washington Dulles Intl. Airport (IAD) for James M. Cox Dayton Intl. Airport (DAY) on a direct United Airlines flight, and you'll be in the skies for approximately 1h 44m.
Which day of the week has the most United Airlines flights from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY)?
Thursday has the most United Airlines flights from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY). With 2 daily departures, this is the best day to book something that will suit your schedule.
What is the earliest United Airlines flight from IAD to DAY?
The first United Airlines flight from IAD to DAY departs at 12:35PM UTC-5, landing at 2:19PM UTC-5. If you'd like to set off later, the last United Airlines flight leaves IAD at 5:50PM UTC-5 and lands at DAY at 7:34PM UTC-5. Flying earlier is generally a smart option as morning and mid-morning flights are less likely to be canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does United Airlines fly into in Dayton?
United Airlines flights from Washington Dulles Intl. Airport (IAD) to Dayton arrive at James M. Cox Dayton Intl. Airport (DAY) and Cincinnati - Northern Kentucky Intl. Airport (CVG). The main Dayton hub served by this airline is DAY. It's always worth checking out flights arriving at nearby airports on Expedia as they may offer lower prices.
Why fly with United Airlines from IAD to DAY?
A rewarding loyalty program and the opportunity to collect points through United Mileage Plus are the start of the reasons to fly from IAD to DAY with United Airlines. Plus, when you join Expedia's free One Key™ program, you can earn OneKeyCash™* in addition to any airline loyalty program earnings. It's yours to use wherever your next trip takes you.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does United Airlines fly from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY)?
United Airlines typically uses Embraer ERJ planes for flights from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY). Bear in mind that aircraft type can change depending on operational requirements, so the plane you board might be different on your day of travel.
Can I change or cancel my United Airlines flight from Washington Dulles Intl. Airport (IAD) to James M. Cox Dayton Intl. Airport (DAY)?
Typically, you can modify or cancel your flight, although there may be additional charges if your booking was made more than 24 hours ago. Prefer to keep your options open? Use Expedia's "Changes included" and "No cancel fee" filters to find flights that won't charge extra if you have to adjust your plans. To make modifications, go to "Trips," select your flight and click on "Manage Booking" for further information.

Explore a world of travel with Expedia

*Available to One Key members.