Seattle to Liberia (SEA–LIR) — Airlines, Schedules & Connections

SEA Airport Page →
3,323 mi airlines 1/wk
On-time Some delays Frequent delays
Flight Schedule 2 flights Verified 48m ago
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  Flight Airline AC Dep Arr Dur OTP Sched  
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AS126
AS Alaska
B38M
9:00 AM
MDT
4:55 PM
CST
6h 55m
—
M T W T F S S
Prices
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←
AS127
AS Alaska
B38M
7:35 AM
CST
2:24 PM
MDT
7h 49m
—
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...
Seattle to Liberia
1 carrier, 1 flights/week nonstop.
1 Airlines 1 Flights/wk 3,323 mi 6h 55m nonstop 30 1-stop hubs

SEA–LIR is served by 1 airline with nonstop service. Alaska Airlines leads the route. The flight covers 3,323 miles in approximately 6h 55m. Beyond nonstop, 30 hubs offer 1-stop connections.

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

Airline Landscape

All carriers operating nonstop SEA–LIR service, compared side by side.
Airline Freq/wk Aircraft Duration Dep OTP Alliance Codeshares
AS Alaska Airlines 1 B38M 6h55 94% Oneworld –
Aircraft on this route
B38M – AS
Alliance coverage
Oneworld: AS (1 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 LIR direction.
Mon
0
flights
Tue
0
flights
Wed
0
flights
Thu
0
flights
Fri
0
flights
Sat
1
flight
Sun
0
flights
Departure time distribution
12 AM6 AM12 PM6 PM12 AM
Morning departures
Afternoon/evening departures
1
Nonstop flights
1
Outbound / wk
1
Return / wk
Connections

Connection Landscape

Beyond nonstop. 1-stop and 2-stop options for SEA to LIR.
1-STOP
One-Stop Connections
30
Hubs
~6h
Fastest
~28h
Longest
SLC ~6h 30m BZN ~7h 23m AUS ~7h 32m LAS ~8h 9m OAK ~8h 34m
Verified with published schedule alignment and minimum connection time.
2-STOP
Two-Stop Connections
1,371
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.
Reliability

On-Time Performance

What to expect at each end of your journey.
Outbound
SEA → LIR
94%
Generally reliable. Most flights run on time.
Departing
94%
Return
LIR → SEA
100%
Generally reliable. Most flights run on time.
Arriving
100%
OTP = percentage of flights arriving within 15 min of schedule. Based on airport-level delay snapshots. SEA delays →
Know before you go

Travel Essentials

Practical planning for this route.
Time Difference
0h
Liberia is 0 hours the same as Seattle.
SEA: MDT · LIR: CST

When it's 6:00 PM in Seattle, it's 6:00 PM in Liberia.
Distance & Flight Time
3,323 mi / 5,348 km
Nonstop flight time is approximately 6h 55m.
Visa & Entry

US passport holders enter Costa Rica visa-free for stays up to 180 days. No advance application is needed. Passport must be valid for at least one day beyond the date of entry. A return or onward ticket is required and airlines will check before boarding. Proof of funds (USD 100 per month of stay) may be requested at immigration.

Verify entry requirements with official sources before travel.
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–LIR Quick Facts

Key statistics for the Seattle to Liberia route.
Route details
Distance3,323 mi / 5,348 km
Flight time6h 55m
Time difference0 hours
Airlines (nonstop)1
Weekly flights1 out / 1 return
1-stop connections30 hubs
Origin: SEA
Full nameSeattle–Tacoma International Airport
IATA / ICAOSEA / KSEA
TimezoneAmerica/Boise
Passengers/yr52.6M
Elevation433 ft / 132 m
Destination: LIR
Full nameDaniel Oduber Quirós International Airport
IATA / ICAOLIR / MRLB
TimezoneAmerica/Costa_Rica
Passengers/yr1.9M
Elevation270 ft / 82 m
FAQ

Frequently Asked Questions

Common questions about SEA to LIR flights.
Nonstop flights from Seattle–Tacoma International Airport to Daniel Oduber Quirós International Airport take approximately 6h 55m. The route covers 3,323 miles.
1 airline operates nonstop service: Alaska Airlines.
There are approximately 1 nonstop flights per week from SEA to LIR. The return direction has about 1 weekly flights.
Yes, 1-stop connections are available through SLC, BZN, AUS, LAS, OAK, DAL, BZE, MCI, RDU, MLB, YVR, YYC, PHL, IAH, CLT, MIA, LAX, EWR, JFK, BOS, SFO, FLL, DTW, DFW, DEN, ORD, ATL, BWI, MSP and YYZ. These options provide additional schedule flexibility.
Yes, return flights from LIR to SEA are available. Use the direction toggle at the top to view the return schedule.
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 LIR

Seattle–Tacoma International Airport (SEA) and Daniel Oduber Quirós International Airport (LIR) are connected by nonstop service from Alaska Airlines. With 1 weekly departures, this is a regularly served route.

SEA to LIR Flight Duration and Schedule

Nonstop flight time from SEA to LIR ranges from 6 hours 55 minutes. The route covers a distance of 3,323 miles (5,348 km). There are approximately 1 weekly flights outbound and 1 return, totaling 2 flights per week in both directions.

Connecting Options and Alternatives

30 one-stop connections are available, with the fastest taking approximately 6 hours via SLC. Two-stop connections are also available via intermediate hubs.