$129 Cheap American Airlines flights Washington (IAD) to Boston (BOS)

View $129 flight on Thu, Jan 29, 2026Opens in a new window

$129 Cheap American Airlines flights Washington (IAD) to Boston (BOS)

Prices were available within the past 7 days and start at $129 for one-way flights and $351 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sun, Jan 18 - Fri, Jan 23
IAD
Washington
BOS
Boston
$351 Roundtrip, found 16 hours ago
$351
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Sun, Jan 18 from Washington to Boston, returning Fri, Jan 23, priced at $351 found 16 hours ago

Find the cheapest month to fly from Washington (IAD) to Boston (BOS)

February is typically the cheapest month to fly

From $97 - $232 per traveler.
Flights from Washington (IAD) to Boston (BOS)
Origin airport
Washington Dulles Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Frontier Airlines, United
Popular airline
Frontier Airlines
Distance
657 km
Average flight time
1 hour 36 mins