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Cheap flights from Washington, D.C. to Donegal from €275

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Donegal departing on 3/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Washington, D.C. to Donegal

Cheap return flights

Enter your travel dates to find the best prices.
Aer Lingus Logo
20:55 - 20:00
IAD
-
CFN
18h 05m
1 stop
Aer Lingus Logo
08:00 - 15:45
CFN
-
IAD
12h 45m
1 stop
€618Aer Lingus
Fri, 3 Apr - Fri, 10 Apr
Multiple Airlines Logo
20:30 - 20:00
IAD
-
CFN
18h 30m
2 stops
Multiple Airlines Logo
08:00 - 19:20
CFN
-
IAD
16h 20m
2 stops
€660Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
20:30 - 20:00
BWI
-
CFN
18h 30m
2 stops
Multiple Airlines Logo
08:00 - 19:25
CFN
-
BWI
16h 25m
2 stops
€660Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
20:30 - 20:00
BWI
-
CFN
18h 30m
3 stops
Multiple Airlines Logo
08:00 - 19:25
CFN
-
BWI
16h 25m
2 stops
€771Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
17:15 - 07:35
IAD
-
CFN
9h 20m
1 stop
Multiple Airlines Logo
08:00 - 19:25
CFN
-
IAD
16h 25m
1 stop
€815Multiple Airlines
Fri, 3 Apr - Fri, 10 Apr
Multiple Airlines Logo
20:30 - 20:00
IAD
-
CFN
18h 30m
3 stops
Multiple Airlines Logo
08:00 - 15:10
CFN
-
IAD
36h 10m
3 stops
€818Multiple Airlines
Mon, 13 Apr - Mon, 20 Apr
Multiple Airlines Logo
09:00 - 20:00
IAD
-
CFN
30h 00m
2 stops
Multiple Airlines Logo
20:30 - 19:25
CFN
-
IAD
27h 55m
3 stops
€842Multiple Airlines
Fri, 3 Apr - Fri, 10 Apr
Multiple Airlines Logo
22:25 - 20:00
IAD
-
CFN
16h 35m
2 stops
Multiple Airlines Logo
08:00 - 15:45
CFN
-
IAD
12h 45m
1 stop
€851Multiple Airlines
Fri, 3 Apr - Fri, 10 Apr
Multiple Airlines Logo
17:15 - 07:35
IAD
-
CFN
9h 20m
1 stop
Multiple Airlines Logo
08:00 - 20:29
CFN
-
IAD
17h 29m
2 stops
€870Multiple Airlines
Fri, 3 Apr - Fri, 10 Apr
Aer Lingus Logo
13:54 - 07:35
DCA
-
CFN
12h 41m
2 stops
Aer Lingus Logo
08:00 - 22:59
CFN
-
DCA
19h 59m
2 stops
€939Aer Lingus
Fri, 3 Apr - Fri, 10 Apr

Aer Lingus flights from Washington, D.C. to Donegal

Our best Aer Lingus deals on Washington, D.C. to Donegal flight tickets
Aer Lingus
3 Apr
IAD20:55Washington, D.C. Dulles Intl
18h 05m
1 stop
CFN20:00Donegal
10 Apr
CFN08:00Donegal
12h 45m
1 stop
IAD15:45Washington, D.C. Dulles Intl
€618
Aer Lingus
3 Apr
DCA13:54Washington, D.C. Reagan-National
12h 41m
2 stops
CFN07:35Donegal
10 Apr
CFN08:00Donegal
19h 59m
2 stops
DCA22:59Washington, D.C. Reagan-National
€939
Aer Lingus
3 Apr
BWI21:30Baltimore/Washington
17h 30m
2 stops
CFN20:00Donegal
10 Apr
CFN08:00Donegal
16h 40m
2 stops
BWI19:40Baltimore/Washington
€1,043

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Donegal 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, momondo users made 13,528 searches. Data last updated 3 March 2026.
Use the filters below to find and compare flights from Washington, D.C. to Donegal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 3/4

20:55-20:00

1 stop18h 05m

Donegal

Fri 10/4

08:00-15:45

1 stop12h 45m

€618

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Mon 13/4

20:30-20:00

2 stops18h 30m

Donegal

Mon 20/4

08:00-19:20

2 stops16h 20m

€660

BaltimoreDonegal

BWI - CFN

BWICFN

Baltimore/Washington

Mon 13/4

20:30-20:00

2 stops18h 30m

Donegal

Mon 20/4

08:00-19:25

2 stops16h 25m

€660

BaltimoreDonegal

BWI - CFN

BWICFN

Baltimore/Washington

Mon 13/4

20:30-20:00

3 stops18h 30m

Donegal

Mon 20/4

08:00-19:25

2 stops16h 25m

€771

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 3/4

17:15-07:35

1 stop9h 20m

Donegal

Fri 10/4

08:00-19:25

1 stop16h 25m

€815

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Mon 13/4

20:30-20:00

3 stops18h 30m

Donegal

Mon 20/4

08:00-15:10

3 stops36h 10m

€818

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 3/4

09:00-20:00

2 stops30h 00m

Donegal

Fri 10/4

20:30-19:25

3 stops27h 55m

€842

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 3/4

22:25-20:00

2 stops16h 35m

Donegal

Fri 10/4

08:00-15:45

1 stop12h 45m

€851

Washington, D.C.Donegal

IAD - CFN

IADCFN

Washington, D.C. Dulles Intl

Fri 3/4

17:15-07:35

1 stop9h 20m

Donegal

Fri 10/4

08:00-20:29

2 stops17h 29m

€870

Washington, D.C.Donegal

DCA - CFN

DCACFN

Washington, D.C. Reagan-National

Fri 3/4

13:54-07:35

2 stops12h 41m

Donegal

Fri 10/4

08:00-22:59

2 stops19h 59m

€939

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Donegal from

How to get the cheapest flight ticket from Washington, D.C. to Donegal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. to Donegal?

Aer Lingus is the most popular carrier operating from Washington, D.C. to Donegal

When to book flights from Washington, D.C. to Donegal

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Donegal according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Donegal (WAS to CFN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Donegal

Fastest flight time

12h 41m

Direct flights

None
The fastest flight from Washington, D.C. to Donegal takes 12h 41m
There are no direct flights from Washington, D.C. to Donegal. There are no popular flight routes from Washington, D.C. to Donegal.
Search flight deals

  • How far is Washington, D.C. to Donegal by plane?

    The distance between Washington, D.C. and Donegal is about 5290.3 km. A reasonable flight in good conditions will take 12h 41m.

  • When did momondo last update prices for flights from Washington, D.C. to Donegal Airport?

    Prices for flights from Washington, D.C. to Donegal Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. to Donegal Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. to Donegal Airport.

  • What documentation or ID do you need to fly to Donegal Airport?

    The travel and health documents you'll need for your trip to Donegal Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Donegal Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Donegal?

Book flights to Donegal if you plan to visit one of these locations
Letterkenny
Bundoran
Killybegs

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Donegal?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to Donegal . Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Washington, D.C. to Donegal with flexible booking policies on momondo?

Flights from Washington, D.C. to Donegal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Donegal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Donegal.

I’m not ready to book a flight from Washington, D.C. to Donegal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington, D.C. to Donegal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Donegal and let you know when they change.

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