Cheap Flights from Washington, D.C. to County Donegal from $843 Roundtrip

Flight deals from Washington, D.C. to County Donegal

Looking for a cheap last-minute deal or the best roundtrip flight from Washington, D.C. to County Donegal? If you want to travel next month, roundtrip fares start from $890. Find the lowest prices on one-way and roundtrip tickets right here.

Donegal.$843 per passenger.Departing Fri, Jun 26, returning Thu, Jul 2.Round-trip flight with Porter Airlines and Aer Lingus.Outbound indirect flight with Porter Airlines, departing from Washington Dulles on Fri, Jun 26, arriving in Donegal.Inbound indirect flight with Aer Lingus, departing from Donegal on Thu, Jul 2, arriving in Washington Dulles.Price includes taxes and charges.From $843, select.

Show more deals

Flying from Washington, D.C. to County Donegal

Arm yourself with these facts on the fly.

Cheapest flight found	$843
Cheapest month to fly	June
Cheapest airport to fly from	Washington Dulles

How to find cheap flights from Washington, D.C. to County Donegal

Ready to join the other savvy travelers booking the cheapest one-way and round-trip flights to County Donegal? Here are a few tips to help you do it the smart way.

Fly from Washington Dulles into Donegal

At the moment, the lowest-priced flight tickets to County Donegal are from Washington Dulles Airport to Donegal Airport.

Fly in June

We crunched the flight calendar and found the cheapest time to fly from Washington, D.C. to County Donegal is currently June.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from Washington, D.C. to anywhere you choose in County Donegal.

Watch as flight prices go up and down

With Price Alerts, we'll let you know when flight prices from Washington, D.C. to County Donegal go up or down so you can book when the time is just right.

Relax – these are fee-free plane tickets

With us, there are no added fees – the County Donegal to County Donegal flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

What's the average Washington, D.C. to County Donegal flight price?

We looked at all of the upcoming round-trip flights from Washington, D.C. to County Donegal we could find over the next 12 months. It looks like $843 is the best price. This is good, compared to the average County Donegal ticket price of $843.

What is the cheapest month to fly from Washington, D.C. to County Donegal?

The cheapest month to fly from Washington, D.C. to County Donegal is currently June.

On which upcoming date is it cheapest to fly from Washington, D.C. to County Donegal?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Washington, D.C. to County Donegal on Friday, June 26, 2026.

Are there any direct flights from Washington, D.C. to County Donegal?

Currently, there aren't any direct flights from Washington, D.C. to County Donegal, but you can still fly with a stopover.

If I'm flying from Washington, D.C., where in County Donegal is cheapest to fly to?

If you're flying from Washington, D.C., the cheapest city in County Donegal to fly into is Donegal. The cheapest airport serving Donegal at the moment is Donegal.