$184 Cheap United flights Seattle (SEA) to Boston (BOS)

View $184 flight on Tue, Jul 14, 2026Opens in a new window

$184 Cheap United flights Seattle (SEA) to Boston (BOS)

Prices were available within the past 7 days and start at $184 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Oct 7 - Sat, Oct 17
SEA
Seattle
BOS
Boston
$317 Roundtrip, found 12 hours ago
$317
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct 7 from Seattle to Boston, returning Sat, Oct 17, priced at $317 found 12 hours ago
United
Wed, Oct 7 - Sat, Oct 17
SEA
Seattle
BOS
Boston
$336 Roundtrip, found 12 hours ago
$336
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct 7 from Seattle to Boston, returning Sat, Oct 17, priced at $336 found 12 hours ago
United
Tue, Jun 9 - Tue, Jun 23
SEA
Seattle
BOS
Boston
$339 Roundtrip, found 3 days ago
$339
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 9 from Seattle to Boston, returning Tue, Jun 23, priced at $339 found 3 days ago
United
Wed, Oct 7 - Sat, Oct 17
SEA
Seattle
BOS
Boston
$350 Roundtrip, found 12 hours ago
$350
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct 7 from Seattle to Boston, returning Sat, Oct 17, priced at $350 found 12 hours ago
United
Tue, Jun 9 - Tue, Jun 23
SEA
Seattle
BOS
Boston
$360 Roundtrip, found 3 days ago
$360
Roundtrip
found 3 days ago
Select United flight, departing Tue, Jun 9 from Seattle to Boston, returning Tue, Jun 23, priced at $360 found 3 days ago
United
Wed, Oct 7 - Sat, Oct 17
SEA
Seattle
BOS
Boston
$362 Roundtrip, found 12 hours ago
$362
Roundtrip
found 12 hours ago
Select United flight, departing Wed, Oct 7 from Seattle to Boston, returning Sat, Oct 17, priced at $362 found 12 hours ago

Alternative airports near Boston

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Logan Intl. BOS. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $412
BOS
Logan Intl.
CheapestClosest
Average driving time to city center7 min
Flights from $412

Find the cheapest month to fly from Seattle (SEA) to Boston (BOS)

March is typically the cheapest month to fly

From $156 - $307 per traveler.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Logan Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Southwest Airlines, Sun Country Airlines, United
Popular airline
Delta
Distance
3980 km
Average flight time
8 hours 59 mins

Explore a world of travel with Expedia