Direct flights from Seattle to Baltimore

Did you mean Flights from Baltimore to Seattle?

Seattle

United States

SEA

Seattle Tacoma International Airport

Baltimore

United States

BWI

Baltimore/Washington International Thurgood Marshal Airport

Route: Nonstop service available
Distance: 2,329 miles
Marketing airlines: 6 airlines
Aircraft: 9 aircraft types
Dates: Oct 19, 2026 – Oct 17, 2027

Observed award fares

A sample of one-way prices for one traveler from Roame’s fare cache. Points, fees, and seats describe the same observation. Availability can change; confirm with the loyalty program before transferring points.

Lowest price in this limited sample: 12,500 points + $5.00 for SEA → BWI, Economy, on 2026-11-06, booked with Alaska Atmos Rewards. This is an observed fare, not a guaranteed price or the lowest price across all dates and programs.

Departure window: 2026-10-23 – 2026-11-21.

SEA → BWIEconomy
AS781
12,500 points+ $5.00
Departure
2026-11-06
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 17:12
SEA → BWIEconomy
AS781
12,500 points+ $5.00
Departure
2026-11-13
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-23 01:57
SEA → BWIEconomy
AS781
17,500 points+ $5.00
Departure
2026-11-01
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 22:22
SEA → BWIEconomy
AS781
20,000 points+ $5.00
Departure
2026-10-28
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 21:17
SEA → BWIEconomy
AS378
22,500 points+ $5.00
Departure
2026-11-13
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-23 01:57
SEA → BWIEconomy
AS781
22,500 points+ $5.00
Departure
2026-11-20
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 23:49
SEA → BWIEconomy
AS781
22,500 points+ $5.00
Departure
2026-11-21
Seats seen
7
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 14:22
SEA → BWIEconomy
AS378
27,500 points+ $5.00
Departure
2026-10-29
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 14:39
SEA → BWIEconomy
AS378
27,500 points+ $5.00
Departure
2026-11-04
Seats seen
2
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 05:07
SEA → BWIEconomy
AS781
27,500 points+ $5.00
Departure
2026-11-05
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-22 02:48
SEA → BWIEconomy
AS378
27,500 points+ $5.00
Departure
2026-11-20
Seats seen
5
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 23:49
SEA → BWIEconomy
AS781
27,500 points+ $5.00
Departure
2026-11-20
Seats seen
9
Book with
Alaska Atmos Rewards
Observed (UTC)
2026-10-21 04:04

Seattle to Baltimore route overview

Seattle Tacoma International Airport (SEA) serves Seattle; Baltimore/Washington International Thurgood Marshal Airport (BWI) serves Baltimore.

The airports are 2,329 miles apart by great-circle distance.

Roame's current schedule feed shows nonstop service from SEA to BWI.

Marketing airlines listed in the current schedule, including codeshare sellers, are Alaska Airlines (AS), Finnair (AY), Cathay Pacific (CX), Hawaiian Airlines (HA), United Airlines (UA) and Southwest Airlines (WN). This list does not identify the operating airline for each flight; check the flight details before booking.

Published schedule dates span Oct 19, 2026 – Oct 17, 2027.

Marketing airlines on the Seattle to Baltimore route

These are marketing airlines, including codeshare sellers. This list does not identify the operating airline for each flight; check the flight details before booking.

Finnair (AY)Codeshare only
Cathay Pacific (CX)Codeshare only
Hawaiian Airlines (HA)Codeshare only

Airline alliance affiliations represented: Oneworld, Star Alliance

Aircraft flying from SEA to BWI

Frequently asked questions

Which airports serve the Seattle to Baltimore route?

Seattle Tacoma International Airport (SEA) is the origin airport and Baltimore/Washington International Thurgood Marshal Airport (BWI) is the destination airport.

How far is Baltimore from Seattle?

SEA and BWI are approximately 2,329 miles apart by great-circle distance.

Are there direct flights from SEA to BWI?

Yes. Roame's current schedule feed shows nonstop service from SEA to BWI.

Which airlines market flights from SEA to BWI?

Which aircraft fly from SEA to BWI?

Aircraft listed in the current schedule include Airbus A319 (319), Airbus A320 (320), 737, Boeing 737-800 (738), Boeing 737-900 / Boeing 737-900ER (739), Boeing 737-800 Winglets (73H), Boeing 737-900 Winglets (73J), Boeing 737 MAX 8 (7M8) and JET.