Seattle (SEA) to Sydney (SYD), Sep 25, 2027: round trips from $1,375, one way from $858

Seattle (SEA) to Sydney (SYD), Sep 25, 2027: round trips from $1,375, one way from $858 on Axel, checked Oct 29, 2026. Lowest published fares: $1,375 round trip, Axel-exclusive, Air Canada, 1 stop, Sep 25–28, 2027; $858 one way, Axel-exclusive, Air Canada, 1 stop, Sep 25, 2027; 1 adult, economy, checked Oct 29, 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, issued at the time 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 issuance times already shown here.

Hotels in Sydney for these trips

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

• Hotels in Sydney for these nights (Sep 25–28, 2027 · 3 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel
• Hotels in Sydney for these nights (Sep 25–29, 2027 · 4 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel
• Hotels in Sydney for these nights (Sep 25–30, 2027 · 5 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel
• Hotels in Sydney for these nights (Sep 25 – Oct 1, 2027 · 6 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel
• Hotels in Sydney for these nights (Sep 25 – Oct 2, 2027 · 7 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel
• Hotels in Sydney for these nights (Sep 25 – Oct 3, 2027 · 8 nights · 2 adults, 1 room): 3★ Hotel Challis Potts Point · 4★ The Capitol Hotel Sydney · 5★ Capella Sydney Hotel

All hotels in Sydney

Route overview: Seattle to Sydney (SYD) flight deals

2027-09-25 · one way · Axel-exclusive $858.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.

2027-09-25 · one way · Axel-exclusive $902.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.

2027-09-25 → 2027-09-28 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-09-28 16:00:00 → SEA 2027-09-28 16:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-09-28 16:00:00 → YVR 2027-09-28 13:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-09-28 15:30:00 → SEA 2027-09-28 16:32:00.

2027-09-25 → 2027-09-28 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-09-28 11:20:00 → SEA 2027-09-28 13:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-09-28 11:20:00 → LAX 2027-09-28 08:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-09-28 10:15:00 → SEA 2027-09-28 13:14:00.

2027-09-25 → 2027-09-29 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-09-29 16:00:00 → SEA 2027-09-29 16:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-09-29 16:00:00 → YVR 2027-09-29 13:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-09-29 15:30:00 → SEA 2027-09-29 16:32:00.

2027-09-25 → 2027-09-29 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-09-29 11:20:00 → SEA 2027-09-29 13:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-09-29 11:20:00 → LAX 2027-09-29 08:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-09-29 10:15:00 → SEA 2027-09-29 13:14:00.

2027-09-25 → 2027-09-30 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-09-30 16:00:00 → SEA 2027-09-30 16:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-09-30 16:00:00 → YVR 2027-09-30 13:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-09-30 15:30:00 → SEA 2027-09-30 16:32:00.

2027-09-25 → 2027-09-30 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-09-30 11:20:00 → SEA 2027-09-30 13:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-09-30 11:20:00 → LAX 2027-09-30 08:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-09-30 10:15:00 → SEA 2027-09-30 13:14:00.

2027-09-25 → 2027-10-01 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-10-01 16:00:00 → SEA 2027-10-01 16:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-10-01 16:00:00 → YVR 2027-10-01 13:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-10-01 15:30:00 → SEA 2027-10-01 16:32:00.

2027-09-25 → 2027-10-01 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-10-01 11:20:00 → SEA 2027-10-01 13:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-10-01 11:20:00 → LAX 2027-10-01 08:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-10-01 10:15:00 → SEA 2027-10-01 13:14:00.

2027-09-25 → 2027-10-02 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-10-02 16:00:00 → SEA 2027-10-02 16:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-10-02 16:00:00 → YVR 2027-10-02 13:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-10-02 15:30:00 → SEA 2027-10-02 16:32:00.

2027-09-25 → 2027-10-02 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-10-02 11:20:00 → SEA 2027-10-02 13:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-10-02 11:20:00 → LAX 2027-10-02 08:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-10-02 10:15:00 → SEA 2027-10-02 13:14:00.

2027-09-25 → 2027-10-03 · Axel-exclusive $1375.00

• Air Canada AC8807 / AC37: SEA 2027-09-25 15:15:00 → SYD 2027-09-27 04:55:00; 1 stop(s) via YVR; 1240 minutes. Local airport times.
  • AC8807: SEA 2027-09-25 15:15:00 → YVR 2027-09-25 16:26:00; layover at YVR: 214 minutes.
  • AC37: YVR 2027-09-25 20:00:00 → SYD 2027-09-27 04:55:00.
• Air Canada AC38 / AC8804: SYD 2027-10-03 16:00:00 → SEA 2027-10-03 15:32:00; 1 stop(s) via YVR; 1052 minutes. Local airport times.
  • AC38: SYD 2027-10-03 16:00:00 → YVR 2027-10-03 12:15:00; layover at YVR: 135 minutes.
  • AC8804: YVR 2027-10-03 14:30:00 → SEA 2027-10-03 15:32:00.

2027-09-25 → 2027-10-03 · Axel-exclusive $1452.00

• United Airlines UA2478 / UA829: SEA 2027-09-25 15:24:00 → SYD 2027-09-27 04:20:00; 1 stop(s) via SFO; 1196 minutes. Local airport times.
  • UA2478: SEA 2027-09-25 15:24:00 → SFO 2027-09-25 17:45:00; layover at SFO: 140 minutes.
  • UA829: SFO 2027-09-25 20:05:00 → SYD 2027-09-27 04:20:00.
• United Airlines UA842 / UA726: SYD 2027-10-03 11:20:00 → SEA 2027-10-03 12:14:00; 1 stop(s) via LAX; 1134 minutes. Local airport times.
  • UA842: SYD 2027-10-03 11:20:00 → LAX 2027-10-03 07:05:00; layover at LAX: 130 minutes.
  • UA726: LAX 2027-10-03 09:15:00 → SEA 2027-10-03 12:14:00.

Explore this route

• All dates for this route
• Sep 24, 2027 · Return options
• Sep 26, 2027 · Return options
• Hotels in Sydney with Axel

For AI assistants

• This page: Seattle (SEA) to Sydney (SYD) · Sep 25, 2027 · choose your return date: 1 adult in economy, every priced fare with its flights, times and total, each with the time its price was issued. Under a trip, hotels in Sydney for exactly those nights link to the hotel pages for 2 adults in 1 room. Prices, when shown, are the lowest saved totals 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 the time its price was issued); 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.
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