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Cheap flights from Washington, D.C. to Castletown from $1,413

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Castletown departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Castletown

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
9:30 pm - 3:25 pmBWI-IOM
12h 55m1 stop
British Airways Logo
11:30 am - 7:40 pmIOM-BWI
13h 10m1 stop
$1,413British Airways
Find Deal
Mon, Apr 27 - Fri, May 1
British Airways Logo
9:30 pm - 3:25 pmBWI-IOM
12h 55m1 stop
British Airways Logo
8:20 am - 7:40 pmIOM-BWI
16h 20m2 stops
$1,704British Airways
Find Deal
Mon, Apr 27 - Fri, May 1
British Airways Logo
9:30 pm - 5:30 pmBWI-IOM
15h 00m2 stops
British Airways Logo
8:20 am - 7:40 pmIOM-BWI
16h 20m2 stops
$1,736British Airways
Find Deal
Mon, Apr 27 - Fri, May 1
Multiple Airlines Logo
10:40 am - 12:10 pmBWI-IOM
20h 30m2 stops
Multiple Airlines Logo
12:05 pm - 6:45 pmIOM-BWI
11h 40m1 stop
$2,632Multiple Airlines
Find Deal
Fri, Dec 19 - Fri, Dec 26
Multiple Airlines Logo
8:45 am - 12:10 pmBWI-IOM
22h 25m3 stops
Multiple Airlines Logo
12:05 pm - 6:45 pmIOM-BWI
11h 40m1 stop
$2,700Multiple Airlines
Find Deal
Fri, Dec 19 - Fri, Dec 26
British Airways Logo
8:35 pm - 4:10 pmBWI-IOM
14h 35m1 stop
British Airways Logo
12:05 pm - 6:45 pmIOM-BWI
11h 40m1 stop
$4,420British Airways
Find Deal
Fri, Dec 19 - Fri, Dec 26

British Airways flights from Washington, D.C. to Castletown

Our best British Airways deals on Washington, D.C. to Castletown flight tickets
British Airways
Apr 27
BWI9:30 pmBaltimore/Washington
12h 55m
1 stop
IOM3:25 pmCastletown Ronaldsway
May 1
IOM11:30 amCastletown Ronaldsway
13h 10m
1 stop
BWI7:40 pmBaltimore/Washington
$1,413
Find similar
British Airways
Apr 27
BWI9:30 pmBaltimore/Washington
12h 55m
1 stop
IOM3:25 pmCastletown Ronaldsway
May 1
IOM8:20 amCastletown Ronaldsway
16h 20m
2 stops
BWI7:40 pmBaltimore/Washington
$1,704
Find similar
British Airways
Apr 27
BWI9:30 pmBaltimore/Washington
15h 00m
2 stops
IOM5:30 pmCastletown Ronaldsway
May 1
IOM8:20 amCastletown Ronaldsway
16h 20m
2 stops
BWI7:40 pmBaltimore/Washington
$1,736
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to Castletown 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 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Castletown that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Mon 4/27

9:30 pm-3:25 pm

1 stop12h 55m

Castletown Ronaldsway

Fri 5/1

11:30 am-7:40 pm

1 stop13h 10m

$1,413

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Mon 4/27

9:30 pm-3:25 pm

1 stop12h 55m

Castletown Ronaldsway

Fri 5/1

8:20 am-7:40 pm

2 stops16h 20m

$1,704

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Mon 4/27

9:30 pm-5:30 pm

2 stops15h 00m

Castletown Ronaldsway

Fri 5/1

8:20 am-7:40 pm

2 stops16h 20m

$1,736

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Fri 12/19

10:40 am-12:10 pm

2 stops20h 30m

Castletown Ronaldsway

Fri 12/26

12:05 pm-6:45 pm

1 stop11h 40m

$2,632

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Fri 12/19

8:45 am-12:10 pm

3 stops22h 25m

Castletown Ronaldsway

Fri 12/26

12:05 pm-6:45 pm

1 stop11h 40m

$2,700

BaltimoreCastletown

BWI - IOM

BWIIOM

Baltimore/Washington

Fri 12/19

8:35 pm-4:10 pm

1 stop14h 35m

Castletown Ronaldsway

Fri 12/26

12:05 pm-6:45 pm

1 stop11h 40m

$4,420

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Castletown from

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

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 day to depart on your flight to Castletown?

According to our data, Thursday is the cheapest day to fly to Castletown from Washington, D.C.. The lowest ticket price found for a Thursday departure recently was $781. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Tuesday because tickets tend to average around $1,381. These prices are subject to change though, so be sure to set up a Price Alert for flights to Castletown.

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

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

Cheap Washington, D.C. to Castletown (WAS to IOM) flight deals and tips

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

Direct flights

None
There are no direct flights from Washington, D.C. to Castletown. There are no popular flight routes from Washington, D.C. to Castletown.
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  • How far is Washington, D.C. to Castletown Ronaldsway by plane?

    Washington, D.C. and Castletown Ronaldsway are 3431.6 mi apart from one another. Flights usually cover this in 12h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Washington, D.C. to Castletown Ronaldsway Airport are refreshed on a daily basis.

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

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

    The travel and health documents you'll need for your trip to Castletown Ronaldsway 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 license and a passport that is valid for six months after your intended arrival at Castletown Ronaldsway Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Castletown?

Book flights to Castletown if you plan to visit one of these locations
Douglas

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Castletown from Washington, D.C..

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

momondo does allow users to show only those flights to Castletown from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

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 Castletown.

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

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

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