✓Good DealAiFly Score: 51/100Verified 26 Oct 2026 02:02 UTC
St. Louis to Porto with United Airlines from $712 / €655 — 3% below the typical deal price of $735.
✓ Verified Deal
🏷️ 3% below typical deal priceTypical deal price: $735
This deal vs. typical deal price for this route — verified 3 Sep 2026 at 10:13 UTC
Tickets from $712 both ways. Checked baggage is not included in the base fare.
✈️ United Airlines — AFR 50/100 (premium-light-strict)
In this fare:
- Checked baggage: Not included — paid checked baggage extra
- Onboard meal: Snack
- WiFi: Free Starlink wifi (members only)
📍 Routing & layovers
- Outbound — Layover 1h 10m (Poor connection)
- Return — Layover 1h 5m (Acceptable connection)
📖 Traveler Resources:
✈️ Airport Guides
📍 St. Louis Lambert International Airport (STL) — Terminals, Transport & Tips
📍 Porto Airport (OPO) — Terminals, Transport & Tips
🌍 Destination Guide
📍 Portugal travel guide
📚 Porto Travel Guide
✈️ Airport Guides
📍 St. Louis Lambert International Airport (STL) — Terminals, Transport & Tips
📍 Porto Airport (OPO) — Terminals, Transport & Tips
🌍 Destination Guide
📍 Portugal travel guide
📚 Porto Travel Guide
Available Dates
Select a date to check live prices on Skyscanner.
📅 26 Oct → 11 Nov — date has passed. See current deals from St. Louis.
27 Oct – 6 Nov$712✈︎ 10h 30m · 1 stop · 1h 10m in New YorkSkyscanner →
30 Oct – 6 Nov$766✈︎ 10h 30m · 1 stop · 1h 10m in New YorkSkyscanner →
4 Nov – 11 Nov$731✈︎ 10h 30m · 1 stop · 1h 10m in New YorkSkyscanner →
9 Nov – 18 Nov$712✈︎ 10h 30m · 1 stop · 1h 10m in New YorkSkyscanner →
Prices verified at time of publication. Always confirm on Skyscanner before booking.
🌍 About Porto
Porto's signature dish is the francesinha: a brick of toasted bread layered with steak, ham, and sausage, blanketed in melted cheese and drowned in a spiced tomato-and-beer sauce, fries on the side. Order it once, share it, and don't plan much after. The thing most people get wrong: the port wine lodges aren't in Porto at all — they're across the Douro in Vila Nova de Gaia, a short walk over the Dom Luís I bridge, and the tastings are there. Come in June: it's the warmest, driest month with crowds still manageable, and the May and September shoulders are nearly as good. Skip December through February unless cheap fares tempt you — Porto's winter is genuinely wet, rainier than most of northern Europe, not just grey.
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