$124 Cheap Delta flights Washington (IAD) to Boston (BOS)

View $124 flight on Mon, May 18, 2026Opens in a new window

$124 Cheap Delta flights Washington (IAD) to Boston (BOS)

Prices were available within the past 7 days and start at $124 for one-way flights and $437 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Wed, Oct 14 - Sun, Oct 18
IAD
Washington
BOS
Boston
$437 Roundtrip, found 1 day ago
$437
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 14 from Washington to Boston, returning Sun, Oct 18, priced at $437 found 1 day ago
Delta
Wed, Oct 14 - Sun, Oct 18
IAD
Washington
BOS
Boston
$442 Roundtrip, found 1 day ago
$442
Roundtrip
found 1 day ago
Select Delta flight, departing Wed, Oct 14 from Washington to Boston, returning Sun, Oct 18, priced at $442 found 1 day ago

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

February is typically the cheapest month to fly

From $113 - $243 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Logan Intl.
Airlines serving
American Airlines, Delta, Frontier Airlines, United
Popular airline
United
Distance
657 km
Average flight time
5 hours 13 mins

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