$161 Cheap Flights from Duluth (DLH) to Washington (IAD)

View $161 flight on Tue, Jan 13, 2026Opens in a new window

Popular airlines from Duluth, MN (DLH-Duluth Intl.) to Washington Dulles Intl. Airport (IAD)

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Cheap Flights from Duluth to Washington (DLH-IAD)

Prices were available within the past 7 days and start at $161 for one-way flights and $268 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Feb 26 - Wed, Mar 4
DLH
Duluth
IAD
Washington
$268 Roundtrip, found 4 hours ago
$268
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Feb 26 from Duluth to Washington, returning Wed, Mar 4, priced at $268 found 4 hours ago
Delta
Fri, Jan 23 - Sun, Jan 25
DLH
Duluth
IAD
Washington
$288 Roundtrip, found 2 days ago
$288
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jan 23 from Duluth to Washington, returning Sun, Jan 25, priced at $288 found 2 days ago
Delta
Tue, Jan 6 - Sun, Jan 18
DLH
Duluth
IAD
Washington
$295 Roundtrip, found 2 days ago
$295
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 6 from Duluth to Washington, returning Sun, Jan 18, priced at $295 found 2 days ago
Delta
Thu, Jan 22 - Mon, Jan 26
DLH
Duluth
IAD
Washington
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Jan 22 from Duluth to Washington, returning Mon, Jan 26, priced at $298 found 1 day ago
United
Thu, Feb 26 - Wed, Mar 4
DLH
Duluth
IAD
Washington
$310 Roundtrip, found 4 hours ago
$310
Roundtrip
found 4 hours ago
Select United flight, departing Thu, Feb 26 from Duluth to Washington, returning Wed, Mar 4, priced at $310 found 4 hours ago
United
Thu, Jan 22 - Mon, Jan 26
DLH
Duluth
IAD
Washington
$311 Roundtrip, found 1 day ago
$311
Roundtrip
found 1 day ago
Select United flight, departing Thu, Jan 22 from Duluth to Washington, returning Mon, Jan 26, priced at $311 found 1 day ago
Delta
Tue, Jan 6 - Sat, Jan 17
DLH
Duluth
IAD
Washington
$319 Roundtrip, found 2 days ago
$319
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 6 from Duluth to Washington, returning Sat, Jan 17, priced at $319 found 2 days ago
Delta
Tue, Jan 6 - Wed, Jan 7
DLH
Duluth
IAD
Washington
$322 Roundtrip, found 2 days ago
$322
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 6 from Duluth to Washington, returning Wed, Jan 7, priced at $322 found 2 days ago
Delta
Fri, Jan 23 - Sun, Jan 25
DLH
Duluth
IAD
Washington
$326 Roundtrip, found 2 days ago
$326
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jan 23 from Duluth to Washington, returning Sun, Jan 25, priced at $326 found 2 days ago
United
Thu, Jan 15 - Thu, Jan 22
DLH
Duluth
IAD
Washington
$333 Roundtrip, found 2 days ago
$333
Roundtrip
found 2 days ago
Select United flight, departing Thu, Jan 15 from Duluth to Washington, returning Thu, Jan 22, priced at $333 found 2 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $442
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $442

Frequently asked questions

How much does a flight from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD) cost?
Snag a cheap one-way flight from $161 or cheap return flight from $268 from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from DLH to IAD is February, when demand is low. Off-peak season is typically when better flight deals are available between these airports.
What is the cheapest airline that flies from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline that'll fly you from DLH to IAD, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD)?
You'll need to hop on a flight with a layover when traveling from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from DLH to IAD?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD) route, travel before 3 PM. Departures after this time have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until just before your departure to book your flight from DLH to IAD often results in higher prices. While you might find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule for the best chance of landing a bargain.
Is it cheaper to book a DLH to IAD flight and hotel package?
Compared with arranging hotels and flights separately, booking a DLH to IAD flight and hotel package with Expedia could lead to significant savings. What's more, having it all in one place will take the stress out of planning your trip. Simply pick your flights and choose from our extensive range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Duluth Intl. Airport (DLH) to Washington Dulles Intl. Airport (IAD)?
Usually, it's possible to cancel or reschedule your DLH to IAD flight. However, for bookings made more than 24 hours ago, additional charges may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Duluth Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Delta, United
Roundtrip price
$268
Distance
921 mi

Book with confidence

Duluth to Washington Flights

The cheapest times to fly from Duluth to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Duluth to Washington are during the month of February. You can find some of the cheapest flights from Duluth to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Duluth to Washington

Sunday is one of the best days to book for cheap flights from Duluth to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Duluth to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Duluth to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from $161 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Duluth to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Duluth to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Duluth to Washington Flights

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*Available to One Key members.