San Antonio (SAT) to Seattle (SEA), Dec 18, 2026: round trips from $362, one way from $165

San Antonio (SAT) to Seattle (SEA), Dec 18, 2026: round trips from $362, one way from $165 on Axel, checked Nov 11, 2026. Lowest published fares: $362 round trip, Axel-exclusive, Southwest Airlines, 1 stop, Dec 18–28, 2026; $165 one way, Axel-exclusive, Southwest Airlines, 1 stop, Dec 18, 2026; 1 adult, economy, checked Nov 11, 2026. Flights for 1 adult in economy. Prices are total for all travelers in USD, including required taxes. Basic economy may apply.

Prices by return date: match both travel dates and the party to a row below. Each total is for that exact trip, labelled with the check date shown.

Date links open published trip details for exploration. Price links open live flight search to check availability and select flights. For a price comparison, use the amounts and check dates already shown here.

Exact travel dates Airline Flights Times, duration, stops Total price Price checked
2026-12-18 · one way Alaska Airlines AS494 17:00:00→19:40:00 4h 40m nonstop Axel-exclusive $185.00 Nov 11, 2026
2026-12-18 · one way Southwest Airlines WN3769 + WN534 05:50:00→10:35:00 6h 45m 1 stop via DAL Axel-exclusive $165.00 Nov 11, 2026
2026-12-18 → 2026-12-19 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-19 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-20 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:01:00→16:02:00 4h 01m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-20 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-21 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-21 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-22 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:00:00→16:02:00 4h 02m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-22 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-23 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-23 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-24 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-24 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-25 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:01:00→16:02:00 4h 01m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-25 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-26 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-26 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-27 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:01:00→16:02:00 4h 01m nonstop Axel-exclusive $420.00 Nov 11, 2026
2026-12-18 → 2026-12-27 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $378.00 Nov 11, 2026
2026-12-18 → 2026-12-28 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $402.50 Nov 11, 2026
2026-12-18 → 2026-12-28 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $362.25 Nov 11, 2026
2026-12-18 → 2026-12-29 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:00:00→16:02:00 4h 02m nonstop Axel-exclusive $402.50 Nov 11, 2026
2026-12-18 → 2026-12-29 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $362.25 Nov 11, 2026
2026-12-18 → 2026-12-30 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $402.50 Nov 11, 2026
2026-12-18 → 2026-12-30 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $362.25 Nov 11, 2026
2026-12-18 → 2026-12-31 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 11:03:00→17:00:00 3h 57m nonstop Axel-exclusive $402.50 Nov 11, 2026
2026-12-18 → 2026-12-31 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $362.25 Nov 11, 2026
2026-12-18 → 2027-01-01 Alaska Airlines AS494 / AS494 17:00:00→19:40:00 4h 40m nonstop · 10:01:00→16:02:00 4h 01m nonstop Axel-exclusive $402.50 Nov 11, 2026
2026-12-18 → 2027-01-01 Southwest Airlines WN3769 + WN534 / WN3434 + WN4838 05:50:00→10:35:00 6h 45m 1 stop via DAL · 05:40:00→14:10:00 6h 30m 1 stop via PHX Axel-exclusive $362.25 Nov 11, 2026

Hotels in Seattle for these trips

Hotels: under a trip, hotels in Seattle for exactly those nights link to the hotel pages for 2 adults in 1 room. When a price is shown, it is the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in that star tier for those dates.

All hotels in Seattle

Route overview: San Antonio to Seattle (SEA) flight deals

2026-12-18 · one way · Axel-exclusive $165.00

2026-12-18 · one way · Axel-exclusive $185.00

2026-12-18 → 2026-12-19 · Axel-exclusive $378.00

2026-12-18 → 2026-12-19 · Axel-exclusive $420.00

2026-12-18 → 2026-12-20 · Axel-exclusive $378.00

2026-12-18 → 2026-12-20 · Axel-exclusive $420.00

2026-12-18 → 2026-12-21 · Axel-exclusive $378.00

2026-12-18 → 2026-12-21 · Axel-exclusive $420.00

2026-12-18 → 2026-12-22 · Axel-exclusive $378.00

2026-12-18 → 2026-12-22 · Axel-exclusive $420.00

2026-12-18 → 2026-12-24 · Axel-exclusive $378.00

2026-12-18 → 2026-12-24 · Axel-exclusive $420.00

2026-12-18 → 2026-12-25 · Axel-exclusive $378.00

2026-12-18 → 2026-12-25 · Axel-exclusive $420.00

2026-12-18 → 2026-12-26 · Axel-exclusive $378.00

2026-12-18 → 2026-12-26 · Axel-exclusive $420.00

2026-12-18 → 2026-12-28 · Axel-exclusive $362.25

2026-12-18 → 2026-12-28 · Axel-exclusive $402.50

2026-12-18 → 2026-12-29 · Axel-exclusive $362.25

2026-12-18 → 2026-12-29 · Axel-exclusive $402.50

2026-12-18 → 2026-12-30 · Axel-exclusive $362.25

2026-12-18 → 2026-12-30 · Axel-exclusive $402.50

2026-12-18 → 2027-01-01 · Axel-exclusive $362.25

2026-12-18 → 2027-01-01 · Axel-exclusive $402.50

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