March is by far the best month, wherein you can get cheapest flights for Seattle to Baltimore. Meanwhile, March is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
March- During this month the footfall is less so, the flight is gradually inexpensive.
March - is the cheapest month to book round trip flights.
Cheapest Fare- Currently, this is the fare price based on the current demand.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Seattle
09:50
Seattle Tacoma International Airport [SEA]
Wed , 25 Mar 2026

Baltimore
22:55
Baltimore Washington International Thurgood Marshall Airport [BWI]
Wed, 25 Mar 2026

Seattle
19:10
Seattle Tacoma International Airport [SEA]
Wed , 15 Apr 2026

Baltimore
05:45
Baltimore Washington International Thurgood Marshall Airport [BWI]
Thu, 16 Apr 2026

Seattle
19:10
Seattle Tacoma International Airport [SEA]
Tue , 14 Apr 2026

Baltimore
05:45
Baltimore Washington International Thurgood Marshall Airport [BWI]
Wed, 15 Apr 2026

Seattle
09:46
Seattle Tacoma International Airport [SEA]
Tue , 17 Mar 2026

Baltimore
17:46
Baltimore Washington International Thurgood Marshall Airport [BWI]
Tue, 17 Mar 2026

Seattle
09:46
Seattle Tacoma International Airport [SEA]
Tue , 17 Mar 2026

Baltimore
17:46
Baltimore Washington International Thurgood Marshall Airport [BWI]
Tue, 17 Mar 2026

Seattle
11:41
Seattle Tacoma International Airport [SEA]
Wed , 15 Apr 2026

Baltimore
23:09
Baltimore Washington International Thurgood Marshall Airport [BWI]
Wed, 15 Apr 2026

Seattle
00:13
Seattle Tacoma International Airport [SEA]
Tue , 17 Mar 2026

Baltimore
12:02
Baltimore Washington International Thurgood Marshall Airport [BWI]
Tue, 17 Mar 2026

Seattle
00:13
Seattle Tacoma International Airport [SEA]
Tue , 31 Mar 2026

Baltimore
12:02
Baltimore Washington International Thurgood Marshall Airport [BWI]
Tue, 31 Mar 2026

Seattle
17:20
Seattle Tacoma International Airport [SEA]
Tue , 17 Mar 2026

Baltimore
07:19
Baltimore Washington International Thurgood Marshall Airport [BWI]
Wed, 18 Mar 2026

Seattle
23:59
Seattle Tacoma International Airport [SEA]
Wed , 08 Apr 2026

Baltimore
09:39
Baltimore Washington International Thurgood Marshall Airport [BWI]
Thu, 09 Apr 2026

Seattle
23:59
Seattle Tacoma International Airport [SEA]
Sun , 12 Apr 2026

Baltimore
09:39
Baltimore Washington International Thurgood Marshall Airport [BWI]
Mon, 13 Apr 2026










