Seattle to Baltimore (SEA–BWI) — Airlines, Schedules & Connections

SEA Airport Page →
2,329 mi airlines 26/wk
On-time Some delays Frequent delays
Flight Schedule 6 flights Verified 55m ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight Hide codeshares
  Flight Airline AC Dep Arr Dur OTP Sched  
✈ Nonstop
✓
→
AS378+1
AS Alaska
739
9:55 AM
PDT
6:16 PM
EDT
5h 21m
—
M T W T F S S
Prices
✓
→
AS379+1
AS Alaska
73J
10:20 AM
PDT
6:35 PM
EDT
5h 15m
—
M T W T F S S
Prices
✓
→
AS763
AS Alaska
7M9
9:32 PM
PDT
5:44 AM+1
EDT
5h 12m
—
M T W T F S S
Prices
✓
→
AS344
AS Alaska
7M9
10:20 PM
PDT
6:28 AM+1
EDT
5h 8m
—
M T W T F S S
Prices
✓
←
AS764
AS Alaska
7M9
7:04 AM
EDT
9:51 AM
PDT
5h 47m
—
M T W T F S S
Prices
✓
←
AS379+1
AS Alaska
73J
7:35 PM
EDT
10:26 PM
PDT
5h 51m
—
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

✦ 1-STOP More options, longer trips
✧ 2-STOP Loading... Reach the hardest destinations
Seattle to Baltimore
1 carrier, 26 flights/week nonstop.
1 Airlines 26 Flights/wk 2,329 mi 5h 8m nonstop +3h ahead 75 1-stop hubs

SEA–BWI is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 2,329 miles in approximately 5h 8m. Beyond nonstop, 75 hubs offer 1-stop connections.

Also explore SEA Routes BWI Routes SEA Live Flights BWI Live Flights SEA Delays BWI Delays
Carriers on this route

Airline Landscape

All carriers operating nonstop SEA–BWI service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines Also: HA 26 739, 73J, 7M9 5h08-5h21 81% Oneworld HA
Aircraft on this route
739 Boeing 737-900 – AS
73J Boeing 737-900ER – AS
7M9 Boeing 737 MAX 9 – AS
Alliance coverage
Oneworld: AS (26 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.
Schedule

Weekly Schedule Pattern

Nonstop flight frequency by day of week, SEA to BWI direction.
Mon
4
flights
Tue
3
flights
Wed
4
flights
Thu
4
flights
Fri
4
flights
Sat
3
flights
Sun
4
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
4
Nonstop flights
26
Outbound / wk
14
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to BWI.
1-STOP
One-Stop Connections
75
Hubs
~6h
Fastest
~31h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
3,246
Candidates
Two-stop connections loaded in the connections tab above.
Connections computed from published schedules with minimum connection time verification. Use the interactive explorer above the fold to filter by airline, tier, and layover time.
Alternatives

Other ways to reach Baltimore from Seattle

Nearby airports with service to Baltimore/Washington International Thurgood Marshall Airport.
Metric SEA→BWI BFI→BWI
Distance from SEA – 5 mi
Nonstop airlines 1 1
Weekly flights 26 –
Flight time 5h 8m 5h 1m
Departure OTP 81% –
Seattle (BFI) to Baltimore flights
Airports within 200 miles of SEA with service to Baltimore/Washington International Thurgood Marshall Airport.
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
+3h
Baltimore is 3 hours ahead of Seattle.
SEA: PDT · BWI: EDT

When it's 6:00 PM in Seattle, it's 9:00 PM in Baltimore.
Distance & Flight Time
2,329 mi / 3,748 km
Nonstop flight time is approximately 5h 8m to 5h 21m.
Getting to SEA

Link Light Rail runs from downtown Seattle (Westlake station) to the airport in 38 minutes ($3.50 peak). Trains run every 6–12 minutes during peak hours from 5am to 1am. Ride-shares run $30–50 from downtown; SR-99 and I-5 can be heavily congested southbound during afternoon rush (3–7pm).

Sound Transit 574 express bus serves Tacoma ($2.50–4). Sounder commuter rail connects Tacoma to the airport area via a shuttle.

Facts

SEA–BWI Quick Facts

Key statistics for the Seattle to Baltimore route.
Route details
Distance2,329 mi / 3,748 km
Flight time5h 8m to 5h 21m
Time difference+3 hours
Airlines (nonstop)1
Weekly flights26 out / 14 return
1-stop connections75 hubs
Origin: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Los_Angeles
Passengers/yr52.6M
Elevation433 ft / 132 m
Destination: BWI
Full nameBaltimore/Washington International Thurgood Marshall Airport
IATA / ICAOBWI / KBWI
TimezoneAmerica/New_York
Passengers/yr26.4M
Elevation146 ft / 45 m
FAQ

Frequently Asked Questions

Common questions about SEA to BWI flights.
Nonstop flights from Seattle–Tacoma International Airport to Baltimore/Washington International Thurgood Marshall Airport take approximately 5h 8m to 5h 21m. The route covers 2,329 miles.
1 airline operates nonstop service: Alaska Airlines. Plus 1 codeshare partner.
There are approximately 26 nonstop flights per week from SEA to BWI. The return direction has about 14 weekly flights.
Yes, 1-stop connections are available through BZN, MKC, ILN, GEG, BFI, MEM, GSO, GRK, YYZ, AFW, TEB, AHN, EWR, ASE, SBD, DCA, OAK, SCF, AZA, FAT, SGR, SNA, MLB, SJD, ANC, MDW, SJC, SLC, SMF, IND, SNN, ONT, PIT, CLE, CMH, DUB, DAL, MCI, PDX, DEN, ATL, PIK, DTW, MCO, IAH, MSP, MSY, RDU, STL, SFO, BNA, CLT, ABQ, AUS, ORD, CHS, MKE, PHX, TPA, BOS, LHR, LAS, DFW, LAX, MIA, SAN, AMS, RSW, KEF, SAT, FLL, CVG, CUN, LIR and BZE. These options provide additional schedule flexibility.
Baltimore is 3 hours ahead of Seattle.
Yes, return flights from BWI to SEA are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BFI. See the Alternatives section for a full comparison.
Click the 'Search Flights' button to check availability and prices on Google Flights. You can also compare airlines and schedules on this page to find the best option.
See the On-Time Performance section for the latest delay data at both airports. This shows departure and arrival reliability to help you plan.
Route data is updated regularly from official airline schedules. On-time performance data comes from recent airport delay snapshots.

Flights from SEA to BWI

Seattle–Tacoma International Airport (SEA) and Baltimore/Washington International Thurgood Marshall Airport (BWI) are connected by nonstop service from Alaska Airlines. With 26 weekly departures, this is a well served route.

SEA to BWI Flight Duration and Schedule

Nonstop flight time from SEA to BWI ranges from 5 hours 8 minutes to 5 hours 21 minutes. The route covers a distance of 2,329 miles (3,748 km). There are approximately 26 weekly flights outbound and 14 return, totaling 40 flights per week in both directions.

Connecting Options and Alternatives

75 one-stop connections are available, with the fastest taking approximately 6 hours via BZN. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Seattle (BFI).