Washington, D.C. to Brussels Flights on Aer Lingus from $545.92*

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Book Washington, D.C. to Brussels flight deals*

Grand Place (Grote Markt) in Brussels, Belgium, illuminated at night.
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Book Washington, D.C. to Brussels flight deals*

$
Book Washington, D.C. to Brussels flight deals*
From
To
Fare Type
Dates
Price
Washington, D.C. (IAD)Brussels (BRU)Roundtrip*
/
Economy
May 17 2026 - May 24 2026

From

$845.26

Seen: 2 hrs ago

Washington, D.C. (IAD)Brussels (BRU)Roundtrip*
/
Economy
May 19 2026 - May 25 2026

From

$856.48

Seen: 2 hrs ago

Washington, D.C. (IAD)Brussels (BRU)Roundtrip*
/
Economy
May 29 2026 - Jun 7 2026

From

$1,140.79

Seen: 6 hrs ago

Washington, D.C. (IAD)Brussels (BRU)Roundtrip*
/
Economy
Jun 7 2026 - Jun 14 2026

From

$1,466.70

Seen: 1 hour ago

* Fares displayed include air transportation charges, taxes and fees. Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Fares are economy class and may include connections with our partner airlines. Modifying this information may result in a different fare. Additional baggage fees and charges for optional products and services may apply.