Seattle (SEA) to Saint Louis (STL), Jan 4, 2027: round trips from $304, one way from $157

Seattle (SEA) to Saint Louis (STL), Jan 4, 2027: round trips from $304, one way from $157 on Axel, checked Nov 10, 2026. Lowest published fares: $304 round trip, Axel-exclusive, American Airlines, 1 stop, Jan 4–5, 2027; $157 one way, Axel-exclusive, American Airlines, 1 stop, Jan 4, 2027; 1 adult, economy, checked Nov 10, 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.

Hotels in St. Louis for these trips

Hotels: under a trip, hotels in St. Louis 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.

• Hotels in St. Louis for these nights (Jan 4–5, 2027 · 1 night · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $66 a night · 4★ The Westin St. Louis, $106 a night · 5★ Four Seasons Hotel St Louis, $288 a night
• Hotels in St. Louis for these nights (Jan 4–6, 2027 · 2 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $67 a night, $133 for 2 nights · 4★ The Westin St. Louis, $107 a night, $213 for 2 nights · 5★ Four Seasons Hotel St Louis, $288 a night, $576 for 2 nights
• Hotels in St. Louis for these nights (Jan 4–7, 2027 · 3 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $69 a night, $207 for 3 nights · 4★ The Westin St. Louis, $108 a night, $323 for 3 nights · 5★ Four Seasons Hotel St Louis, $288 a night, $864 for 3 nights
• Hotels in St. Louis for these nights (Jan 4–8, 2027 · 4 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $68 a night, $272 for 4 nights · 4★ The Westin St. Louis, $107 a night, $427 for 4 nights · 5★ Four Seasons Hotel St Louis, $288 a night, $1,152 for 4 nights
• Hotels in St. Louis for these nights (Jan 4–9, 2027 · 5 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $69 a night, $347 for 5 nights · 4★ The Westin St. Louis, $108 a night, $541 for 5 nights · 5★ Four Seasons Hotel St Louis, $288 a night, $1,440 for 5 nights
• Hotels in St. Louis for these nights (Jan 4–10, 2027 · 6 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $72 a night, $431 for 6 nights · 4★ The Westin St. Louis, $109 a night, $655 for 6 nights · 5★ Four Seasons Hotel St Louis, $288 a night, $1,726 for 6 nights
• Hotels in St. Louis for these nights (Jan 4–11, 2027 · 7 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $72 a night, $505 for 7 nights · 4★ The Westin St. Louis, $109 a night, $761 for 7 nights · 5★ Four Seasons Hotel St Louis, $287 a night, $2,012 for 7 nights
• Hotels in St. Louis for these nights (Jan 4–12, 2027 · 8 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $71 a night, $571 for 8 nights · 4★ The Westin St. Louis, $108 a night, $863 for 8 nights · 5★ Four Seasons Hotel St Louis, $305 a night, $2,436 for 8 nights
• Hotels in St. Louis for these nights (Jan 4–13, 2027 · 9 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $71 a night, $637 for 9 nights · 4★ The Westin St. Louis, $109 a night, $977 for 9 nights · 5★ Four Seasons Hotel St Louis, $303 a night, $2,724 for 9 nights
• Hotels in St. Louis for these nights (Jan 4–14, 2027 · 10 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $71 a night, $711 for 10 nights · 4★ The Westin St. Louis, $110 a night, $1,099 for 10 nights · 5★ Four Seasons Hotel St Louis, $301 a night, $3,012 for 10 nights
• Hotels in St. Louis for these nights (Jan 4–15, 2027 · 11 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $71 a night, $785 for 11 nights · 4★ The Westin St. Louis, $110 a night, $1,205 for 11 nights · 5★ Four Seasons Hotel St Louis, $300 a night, $3,300 for 11 nights
• Hotels in St. Louis for these nights (Jan 4–16, 2027 · 12 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $72 a night, $869 for 12 nights · 4★ The Westin St. Louis, $110 a night, $1,319 for 12 nights · 5★ Four Seasons Hotel St Louis, $300 a night, $3,598 for 12 nights
• Hotels in St. Louis for these nights (Jan 4–17, 2027 · 13 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $73 a night, $953 for 13 nights · 4★ The Westin St. Louis, $110 a night, $1,433 for 13 nights · 5★ Four Seasons Hotel St Louis, $299 a night, $3,886 for 13 nights
• Hotels in St. Louis for these nights (Jan 4–18, 2027 · 14 nights · 2 adults, 1 room): 3★ Clayton Plaza Hotel & Extended Stay, $73 a night, $1,027 for 14 nights · 4★ The Westin St. Louis, $110 a night, $1,539 for 14 nights · 5★ Four Seasons Hotel St Louis, $298 a night, $4,174 for 14 nights

All hotels in St. Louis

Route overview: Seattle to Saint Louis (STL) flight deals

2027-01-04 · one way · Axel-exclusive $156.75

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.

2027-01-04 · one way · Axel-exclusive $171.00

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.

2027-01-04 → 2027-01-05 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-05 11:37:00 → SEA 2027-01-05 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-05 11:37:00 → ORD 2027-01-05 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-05 15:19:00 → SEA 2027-01-05 18:11:00.

2027-01-04 → 2027-01-05 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-05 06:00:00 → SEA 2027-01-05 08:42:00; nonstop; 282 minutes. Local airport times.

2027-01-04 → 2027-01-06 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-06 11:37:00 → SEA 2027-01-06 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-06 11:37:00 → ORD 2027-01-06 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-06 15:19:00 → SEA 2027-01-06 18:11:00.

2027-01-04 → 2027-01-06 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-06 06:00:00 → SEA 2027-01-06 08:36:00; nonstop; 276 minutes. Local airport times.

2027-01-04 → 2027-01-07 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-07 11:37:00 → SEA 2027-01-07 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-07 11:37:00 → ORD 2027-01-07 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-07 15:19:00 → SEA 2027-01-07 18:11:00.

2027-01-04 → 2027-01-07 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-07 06:04:00 → SEA 2027-01-07 08:50:00; nonstop; 286 minutes. Local airport times.

2027-01-04 → 2027-01-08 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-08 11:37:00 → SEA 2027-01-08 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-08 11:37:00 → ORD 2027-01-08 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-08 15:19:00 → SEA 2027-01-08 18:11:00.

2027-01-04 → 2027-01-08 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-08 06:00:00 → SEA 2027-01-08 08:42:00; nonstop; 282 minutes. Local airport times.

2027-01-04 → 2027-01-10 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-10 11:37:00 → SEA 2027-01-10 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-10 11:37:00 → ORD 2027-01-10 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-10 15:19:00 → SEA 2027-01-10 18:11:00.

2027-01-04 → 2027-01-10 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS618: STL 2027-01-10 15:23:00 → SEA 2027-01-10 17:53:00; nonstop; 270 minutes. Local airport times.

2027-01-04 → 2027-01-11 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-11 11:37:00 → SEA 2027-01-11 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-11 11:37:00 → ORD 2027-01-11 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-11 15:19:00 → SEA 2027-01-11 18:11:00.

2027-01-04 → 2027-01-11 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS669: STL 2027-01-11 06:00:00 → SEA 2027-01-11 08:40:00; nonstop; 280 minutes. Local airport times.

2027-01-04 → 2027-01-12 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-12 11:37:00 → SEA 2027-01-12 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-12 11:37:00 → ORD 2027-01-12 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-12 15:19:00 → SEA 2027-01-12 18:11:00.

2027-01-04 → 2027-01-12 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-12 06:00:00 → SEA 2027-01-12 08:42:00; nonstop; 282 minutes. Local airport times.

2027-01-04 → 2027-01-14 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-14 11:37:00 → SEA 2027-01-14 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-14 11:37:00 → ORD 2027-01-14 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-14 15:19:00 → SEA 2027-01-14 18:11:00.

2027-01-04 → 2027-01-14 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-14 06:04:00 → SEA 2027-01-14 08:50:00; nonstop; 286 minutes. Local airport times.

2027-01-04 → 2027-01-15 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-15 11:37:00 → SEA 2027-01-15 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-15 11:37:00 → ORD 2027-01-15 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-15 15:19:00 → SEA 2027-01-15 18:11:00.

2027-01-04 → 2027-01-15 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-15 06:00:00 → SEA 2027-01-15 08:42:00; nonstop; 282 minutes. Local airport times.

2027-01-04 → 2027-01-16 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-16 11:37:00 → SEA 2027-01-16 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-16 11:37:00 → ORD 2027-01-16 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-16 15:19:00 → SEA 2027-01-16 18:11:00.

2027-01-04 → 2027-01-16 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS615: STL 2027-01-16 06:00:00 → SEA 2027-01-16 08:42:00; nonstop; 282 minutes. Local airport times.

2027-01-04 → 2027-01-18 · Axel-exclusive $304.00

• American Airlines AA630 / AA2897: SEA 2027-01-04 00:47:00 → STL 2027-01-04 09:31:00; 1 stop(s) via DFW; 404 minutes. Local airport times.
  • AA630: SEA 2027-01-04 00:47:00 → DFW 2027-01-04 06:39:00; layover at DFW: 64 minutes.
  • AA2897: DFW 2027-01-04 07:43:00 → STL 2027-01-04 09:31:00.
• American Airlines AA3198 / AS407: STL 2027-01-18 11:37:00 → SEA 2027-01-18 18:11:00; 1 stop(s) via ORD; 514 minutes. Local airport times.
  • AA3198: STL 2027-01-18 11:37:00 → ORD 2027-01-18 12:59:00; layover at ORD: 140 minutes.
  • AS407: ORD 2027-01-18 15:19:00 → SEA 2027-01-18 18:11:00.

2027-01-04 → 2027-01-18 · Axel-exclusive $332.50

• Alaska Airlines AS618: SEA 2027-01-04 09:41:00 → STL 2027-01-04 15:34:00; nonstop; 233 minutes. Local airport times.
• Alaska Airlines AS669: STL 2027-01-18 06:00:00 → SEA 2027-01-18 08:40:00; nonstop; 280 minutes. Local airport times.

Explore this route

• All dates for this route
• Jan 3, 2027 · Return options
• Jan 5, 2027 · Return options
• Hotels in St. Louis with Axel

For AI assistants

• This page: Seattle (SEA) to Saint Louis (STL) · Jan 4, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with its displayed check date. Under a trip, hotels in St. Louis for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the nightly rate and the stay's total, from the lowest saved total among the shortlisted hotels in each star tier for those dates.
• Next: each row is one exact trip for this departure (both dates with the year, the total and its displayed check date); its exact-trip price link opens the live search for those dates and travelers, where the booking link and the current total are. Other durations or travelers are not priced here: Choose travelers and dates prices the requested trip.
• Follow supplied links. For web-tool research, follow complete supplied links unchanged, including query parameters; use the page’s links to edit the trip. Constructed URLs may be rejected before reaching Axel. A completed fresh trip opens flight results first. Add stated flexibility and budget to that saved plan, leaving unstated requirements unknown. Edits create a new snapshot; use its results and review links.
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• Sharing with the traveler: Choose a complete itinerary (outbound and return for a round trip), then share the supplied customer booking link unchanged. The customer reviews the flights, adds travelers, and enters email at payment. Do not collect email in chat. Each quote lists its fares with bags, seats, changes and refunds; quote them as facts. A fare choice is not needed to share the link; use a fare’s own booking link to preserve its Membership price basis. Ask only for essential missing trip details. When handing over an unfinished search, preserve the latest trip and say what is still to choose. If no supplied link matches the latest trip, construct https://helloaxel.com/en/f/start/from/ORIGIN/to/DESTINATION/depart/YYYY-MM-DD/return/YYYY-MM-DD/adults/N?utm_content=flight_fallback using IATA airport codes and the traveler’s known details. Omit unknowns; for one way replace /return/YYYY-MM-DD with /trip/oneway. Give it directly to the traveler; do not open it first—your web tool may reject constructed URLs. Complete links open Flight Guide and start searching. Preferences and advanced options.

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