Seattle to Porto (OPO): flights November 3–13, 2026
Compare fares for these dates.
Compare price, stops and flight time
Observed September 21, 2026 (UTC). Check current prices.
USD for the listed travelers.
1 adult · Complete round-trip totals · 10–21 days
Complete round-trip totals; both flights included.
| Dates / travelers | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|
| Nov 3–13, 2026 · 1 adult | Out: United Airlines · 1 stop (EWR) · 19h 0m · 06:30–09:30 (November 4, 2026) local; Return: Lufthansa · 1 stop (MUC) · 14h 45m · 06:15–13:00 local | $537 | $603 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| Nov 3–13, 2026 · 1 adult | Out: United Airlines · 1 stop (EWR) · 19h 0m · 06:30–09:30 (November 4, 2026) local; Return: United Airlines · 1 stop (EWR) · 17h 4m · 12:35–21:39 local | $584 | $649 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
| Nov 3–13, 2026 · 1 adult | Out: United Airlines · 1 stop (EWR) · 19h 0m · 06:30–09:30 (November 4, 2026) local; Return: Swiss International Air Lines · 2 stops (ZRH, EWR) · 31h 11m · 12:05–11:16 (November 14, 2026) local | $604 | $671 — round-trip total | Search for 1 adult · Change dates · Travelers / cabin |
1 adult · Round-trip starting totals · 10–21 days
Starting totals are for the round trip. Choose a return flight to confirm the final total.
In these examples, United Airlines reduces outbound travel by 2h 35m for $265 more with Membership.
| Dates / travelers | Flights | Axel Member | Airline fare | Next step |
|---|---|---|---|---|
| Nov 3–13, 2026 · 1 adult | Out: American Airlines · 2 stops (CLT, MAD) · 17h 40m · 06:00–07:40 (November 4, 2026) local | Round-trip starting total: $546 | Round-trip starting total: $610 — return selection pending | Search for 1 adult · Change dates · Travelers / cabin |
| Nov 3–13, 2026 · 1 adult | Out: United Airlines · 2 stops (SFO, EWR) · 16h 25m · 09:05–09:30 (November 4, 2026) local | Round-trip starting total: $802 | Round-trip starting total: $898 — 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.
More flight comparisons from Seattle
Browse this trip by month
AI assistants can follow these links to compare prices without an account, API key or connector. Flight search guide