Billings to Seattle (BIL–SEA) — Airlines, Schedules & Connections

BIL Airport Page →
662 mi airlines 21/wk
On-time Some delays Frequent delays
Flight Schedule 6 flights Verified 3h ago
Nonstop 1-Stop 2-Stop Hide separate tickets Hide overnight
  Flight Airline AC Dep Arr Dur OTP Sched  
AS2555
AS Alaska
E75
7:00 AM
CDT
8:17 AM
MDT
2h 17m
M T W T F S S
Prices
BA2962
BA British
E75
2:04 PM
CDT
3:17 PM
MDT
2h 13m
M T W T F S S
Prices
AS2084
AS Alaska
E75
2:04 PM
CDT
3:17 PM
MDT
2h 13m
M T W T F S S
Prices
AS2353
AS Alaska
E75L
12:53 PM
MDT
3:25 PM
CDT
1h 32m
M T W T F S S
Prices
BA2961
BA British
E75L
8:45 PM
MDT
11:38 PM
CDT
1h 53m
M T W T F S S
Prices
AS2457
AS Alaska
E75L
8:45 PM
MDT
11:38 PM
CDT
1h 53m
M T W T F S S
Prices

No flights match your filters.

No nonstop flights on this route. connecting options below.

1-STOP
2-STOP Loading...
Billings to Seattle
2 carriers, 21 flights/week nonstop.
2 Airlines 21 Flights/wk 662 mi 2h 13m nonstop -1h behind 10 1-stop hubs

BIL–SEA is served by 2 airlines with nonstop service. Alaska Airlines and British Airways lead the route. The flight covers 662 miles in approximately 2h 13m. Beyond nonstop, 10 hubs offer 1-stop connections.

Airline Landscape

All carriers operating nonstop BIL–SEA service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 14 E75 2h13-2h17 100% Oneworld
BA British Airways 7 E75 2h13 100% Oneworld
Aircraft on this route
E75 Embraer E175 – AS, BA
Alliance coverage
Oneworld: AS + BA (21 flights/wk, 100%)
OTP based on airport-level delay snapshots. Duration ranges reflect seasonal/directional variation.

Weekly Schedule Pattern

Nonstop flight frequency by day of week, BIL to SEA direction.
Mon
3
flights
Tue
3
flights
Wed
3
flights
Thu
3
flights
Fri
3
flights
Sat
3
flights
Sun
3
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
3
Nonstop flights
21
Outbound / wk
21
Return / wk

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for BIL to SEA.
1-STOP
One-Stop Connections
10
Hubs
~6h
Fastest
~24h
Longest
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
627
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.

On-Time Performance

What to expect at each end of your journey.
Outbound
BIL → SEA
100%
Generally reliable. Most flights run on time.
Departing
100%
Arriving
94%
Return
SEA → BIL
56%
Frequent delays expected. Consider flexible booking.
Departing
56%
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. BIL delays → SEA delays →

Other ways to reach Seattle from Billings

Nearby airports with service to Seattle–Tacoma International Airport.
Metric BIL→SEA BZN→SEA HLN→SEA
Distance from BIL 126 mi 174 mi
Nonstop airlines 2 3 1
Weekly flights 21 57 7
Flight time 2h 13m 1h 6m 1h 50m
Departure OTP 100%
Airports within 200 miles of BIL with service to Seattle–Tacoma International Airport.

Travel Essentials

Practical planning for this route.
Time Difference
-1h
Seattle is 1 hour behind Billings.
BIL: CDT · SEA: MDT

When it's 6:00 PM in Billings, it's 5:00 PM in Seattle.
Distance & Flight Time
662 mi / 1,066 km
Nonstop flight time is approximately 2h 13m to 2h 17m.
Getting from SEA

Link Light Rail from the airport station (inside the terminal) to downtown Seattle takes 38 minutes ($3.50). No transfers needed; trains run 5am to 1am daily.Taxis and ride-shares to downtown cost $35–55. For Bellevue and Eastside destinations (across Lake Washington), ride-share is faster than Link. Car rentals are in the consolidated rental facility; take the free shuttle from baggage claim. Sound Transit buses serve Tacoma, Renton, and Federal Way.

Seattle Climate

Marine west coast climate. Winters are mild but persistently grey and rainy (3–9°C). Snow is rare at sea level but can occur December through February, causing significant disruptions when it does. The airport sits between Seattle and Tacoma in an area that receives more fog and low cloud than downtown Seattle.

Summers are famously pleasant (18–25°C) with low humidity and mostly clear skies, one of the best flying climates in the US from June through September. The wettest months are November through January.

BIL–SEA Quick Facts

Key statistics for the Billings to Seattle route.
Route details
Distance662 mi / 1,066 km
Flight time2h 13m to 2h 17m
Time difference-1 hour
Airlines (nonstop)2
Weekly flights21 out / 21 return
1-stop connections10 hubs
Origin: BIL
IATA / ICAOBIL / KBIL
TimezoneAmerica/North_Dakota/Beulah
Passengers/yr1.0M
Elevation3,652 ft / 1,113 m
Destination: SEA
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m

Frequently Asked Questions

Common questions about BIL to SEA flights.
Nonstop flights from Billings Logan International Airport to Seattle–Tacoma International Airport take approximately 2h 13m to 2h 17m. The route covers 662 miles.
2 airlines operate nonstop service: Alaska Airlines and British Airways.
There are approximately 21 nonstop flights per week from BIL to SEA. The return direction has about 21 weekly flights.
Yes, 1-stop connections are available through OAK, MDW, LAS, SLC, PHX, MSP, DFW, DEN, PDX and GTF. These options provide additional schedule flexibility.
Seattle is 1 hour behind Billings.
Yes, return flights from SEA to BIL are available. Use the direction toggle at the top to view the return schedule.
Nearby alternatives include BZN, HLN and GTF. 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 BIL to SEA

Billings Logan International Airport (BIL) and Seattle–Tacoma International Airport (SEA) are connected by nonstop service from Alaska Airlines and British Airways. With 21 weekly departures, this is a well served route.

BIL to SEA Flight Duration and Schedule

Nonstop flight time from BIL to SEA ranges from 2 hours 13 minutes to 2 hours 17 minutes. The route covers a distance of 662 miles (1,066 km). There are approximately 21 weekly flights outbound and 21 return, totaling 42 flights per week in both directions.

Connecting Options and Alternatives

10 one-stop connections are available, with the fastest taking approximately 6 hours via OAK. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Bozeman (BZN), Helena (HLN) and Great Falls (GTF).