Seattle to Saint Louis (STL): flights October 16–19, 2026
Compare fares for these dates.
Round-trip fare examples
Observed September 16, 2026 (UTC). Search a trip for current prices and flight details.
Round-trip totals in USD for 1 adult · Economy · 3 days.
| Destination | Trip dates | Axel Member | Airline fare | Stops | Search |
|---|---|---|---|---|---|
| Saint Louis (STL) | Oct 16–19, 2026 | $203 | $227 | 1 stop | Search for 1 adult · Dates · Travelers |
Compare price, stops and flight time
Observed September 17, 2026 (UTC). Check current prices.
USD for the listed travelers.
1 adult · Complete round-trip totals · 2–4 days
Complete round-trip totals; both flights included.
The $577 round trip saves 3h 32m of travel across both directions for $319 more. Compare departure times below.
| Dates / travelers | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|
| Oct 16–19, 2026 · 1 adult | Out: United Airlines · 1 stop (DEN) · 5h 49m · 15:55–23:44 local; Return: United Airlines · 1 stop (IAH) · 9h 33m · 15:12–22:45 local | $258 | $287 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| Oct 16–19, 2026 · 1 adult | Out: United Airlines · 1 stop (DEN) · 5h 49m · 15:55–23:44 local; Return: United Airlines · 1 stop (DEN) · 6h 1m · 13:36–17:37 local | $577 | $648 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
1 adult · Round-trip starting totals · 2–4 days
Starting totals are for the round trip. Choose a return flight to confirm the final total.
In these examples, Alaska Airlines reduces outbound travel by 1h 53m for $118 more with Membership.
| Dates / travelers | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|
| Oct 16–19, 2026 · 1 adult | Out: United Airlines · 1 stop (DEN) · 5h 49m · 15:55–23:44 local | Round-trip starting total: $272 | Round-trip starting total: $305 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| Oct 16–19, 2026 · 1 adult | Out: American Airlines · 1 stop (ORD) · 7h 5m · 15:14–00:19 (October 17, 2026) local | Round-trip starting total: $272 | Round-trip starting total: $305 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| Oct 16–19, 2026 · 1 adult | Out: Alaska Airlines · Nonstop · 3h 56m · 18:03–23:59 local | Round-trip starting total: $390 | Round-trip starting total: $437 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
Non-members can also book and save on airline fares. Live search shows prices with and without Membership. Optional Membership: $15 for the first month, then $10/month. Cancel anytime.
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